CN1296105C - Catheter and introducer needle assembly with needle shield - Google Patents

Catheter and introducer needle assembly with needle shield Download PDF

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Publication number
CN1296105C
CN1296105C CNB01807054XA CN01807054A CN1296105C CN 1296105 C CN1296105 C CN 1296105C CN B01807054X A CNB01807054X A CN B01807054XA CN 01807054 A CN01807054 A CN 01807054A CN 1296105 C CN1296105 C CN 1296105C
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China
Prior art keywords
needle
insertion
portion
catheter
needle shield
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CNB01807054XA
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Chinese (zh)
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CN1427731A (en
Inventor
C·N·辛德里奇
T·J·厄斯金
W·F·哈丁
G·H·豪厄尔
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贝克顿迪肯森公司
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Priority to US09/717,148 priority Critical patent/US6749588B1/en
Application filed by 贝克顿迪肯森公司 filed Critical 贝克顿迪肯森公司
Publication of CN1427731A publication Critical patent/CN1427731A/en
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Publication of CN1296105C publication Critical patent/CN1296105C/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06Body-piercing guide needles or the like
    • A61M25/0612Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0618Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard
    • A61M25/0625Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard with a permanent connection to the needle hub, e.g. a guiding rail, a locking mechanism or a guard advancement mechanism
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3273Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel freely sliding on needle shaft without connection to syringe or needle
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/322Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A61M5/3221Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3223Means impeding or disabling repositioning of used needles at the syringe nozzle
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3245Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3247Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3245Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3247Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
    • A61M2005/325Means obstructing the needle passage at distal end of a needle protection sleeve
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3243Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3275Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel being connected to the needle hub or syringe by radially deflectable members, e.g. longitudinal slats, cords or bands

Abstract

提供一带有一针罩的导管和插入器针的组件。 Providing a catheter and insertion needle assembly a needle shield having a. 针罩包括一装置,一旦针撤回进入针罩,该装置用来阻止针的不希望的远侧运动。 Means comprising a needle shield once the needle withdrawn into the needle shield, the means for preventing unwanted distal movement of the needle. 针罩还包括一用来连接针罩与导管套节的装置,直到插入器针的锋利的末端撤回进入针罩。 Further comprising a needle shield for a needle shield means connected to the catheter hub until the sharp tip of the insertion needle withdrawn into the needle shield. 因此,当插入器针的远端从针罩的远端部分延伸时,针罩连接到导管套节,且当插入器针的锋利的末端撤回进入针罩时,针罩与导管套节脱开。 Thus, when the distal end of the insertion needle extending from the distal end portion of the needle shield, the needle shield is connected to the catheter hub, and when the sharp tip of the insertion needle withdrawn into the needle shield, the needle shield disengaging the catheter hub .

Description

带有针罩的导管和插管器针的组件 The catheter and introducer needle assembly with needle shield

本申请是2000年6月9日提出的申请号为09/590,600的部分继续申请,而09/590,600号申请是1999年5月14日提出的申请号为09/312,335的部分继续申请,而09/312,335号申请是1998年4月9日提出的申请号为09/057,718、现为US6,004,294的部分继续申请。 This application is No. 2000, June 9 proposed for part 09 / 590,600 a continuation, and 09 / 590,600 application is a No. 1999 May 14 submitted for the part 09 / 312,335 is a continuation-09 / application number No. 312,335 application is April 9, 1998 proposed 09 / 057,718, now continue to apply as part of US6,004,294. 本申请还是2000年2月4日提出的申请号为09/499,331的部分继续申请,而09/499,331申请是1999年5月14日提出的申请号为09/312,335的部分继续申请,而09/312,335申请是1998年4月9日提出的申请号为09/057,718、现为US6,004,294的部分继续申请。 This application is also Application No. 2000, February 4 proposed for part 09 / 499,331 a continuation application 09 / 499,331 application is a No. 1999 May 14 submitted for the part 09 / 312,335 a continuation application 09 / application No. 312,335 application is April 9, 1998 proposed 09 / 057,718, now continue to apply as part of US6,004,294. 本申请还是1999年9月24日提出的申请号为09/406,026的部分继续申请。 This application is also application No. 1999, September 24 was made part of 09 / 406,026 a continuation.

技术领域 FIELD

本发明设计一种包括一针罩的导管和插管器针的组件,在使用针将导管插入病人体内之后,该针罩将插管器针的锋利的末端安全地保护起来。 The present invention contemplates a catheter comprising a cannula and a needle assembly a needle shield, the needle after use of the catheter into the patient, the needle shield to the needle cannula sharp tip safely protected. 此外,本发明包括一种机构,它将针罩连到导管上,直到插管器针的锋利的末端被针罩盖住。 Further, the present invention comprises a mechanism, it is connected to the catheter needle shield until the sharp tip of the needle cannula is covered needle shield.

背景技术 Background technique

导管,特别是血管内的(IV)导管用于将诸如生理盐水、各种药剂和全静脉营养之类的液体输入到一病人体内,从一病人身上抽血或监视病人血管系统的各种参数。 Catheters, in particular (IV) catheters are used, such as physiological saline in a blood vessel, a variety of agents and total parenteral nutrition liquid or the like is inputted to a patient, or monitoring various parameters of blood from a patient's vascular system of the patient . 外周的血管内导管趋向于较短,一般长度约为2英吋或不到2英吋的量级。 An outer periphery of the intravascular catheter tending to short, typically a length of about 2 inches or less the order of 2 inches. 最普通型的IV导管是全针的外周IV导管。 The most common type of IV catheter is an outer periphery of the whole needle IV catheter. 如其名字所蕴含,一全针导管通过一插管器安装在具有一锋利末端的针上。 As its name implies, a whole through a catheter needle cannula mounted on a needle having a sharpened tip. 至少导管的末端部分紧紧地接合在针的外表面上,以防止导管的脱开,因而有助于将导管插入血管内。 At least a tip portion of the catheter tightly engages the outer surface of the needle to prevent disengagement of the catheter, thus facilitating inserting a catheter into a blood vessel. 导管和插管针组装在一起,这样,插管器针的末端延伸超过导管的末端,使针头的斜面离病人的皮肤面向上。 Catheter needle and cannula are assembled together, so that the end of the introducer needle extends beyond the end of the catheter, the needle bevel facing the skin from the patient.

导管和插管器针组件以小角度通过病人的皮肤插入一血管。 Catheter and introducer needle assembly is inserted into a small angle skin of a patient through a blood vessel. 有许多种技术来将这样的导管和插管器针的组件插入病人体内。 There are many techniques for such a catheter and introducer needle assembly into a patient. 在一种插入技术中,插入器针的组件和导管一起完全插入血管。 In one insertion technique, the insertion needle assembly and catheter into the blood vessel completely together. 在另一种技术中,在初始插入血管之后,插管器针撤回到导管内。 In another technique, after initial insertion in a blood vessel, the introducer needle withdrawn into the catheter. 然后将导管装在针上并完全插入血管内。 The catheter is then mounted over the needle and inserted completely into the blood vessel.

为了核实导管在血管内的适当的位置,临床医生要确认在反光腔内有否血的反光。 In order to verify the proper location of the catheter in the blood vessel, the clinician to confirm whether the blood reflector reflective cavity. 通常反光腔作为针的套节的部分而形成。 Typically reflecting cavity as part of the needle hub is formed. 一旦确认导管进入血管到达适当的位置,临床医生在插管器针和导管的末端的血管上方通过向下压迫病人的皮肤而对血管施加压力。 Upon confirmation of the catheter into a blood vessel to the appropriate position, the clinician at the top end of the vascular introducer needle and catheter through the patient's skin compression is applied downward pressure on the blood vessels. 这种指压闭塞或者至少尽可能减少进一步的血流通过插管器针和导管。 This means occlusion or at least reduce the pressure introducer needle and catheter further blood flow through as possible. 临床医生然后抽去插管器针,留下导管在原位,并在导管上连接一适当的装置。 The clinician then take away the introducer needle, leaving the catheter in place, and a suitable means connected to the catheter. 这种装置可包括一液体传送装置,一PRN,一闭塞端帽或一血压监视探子。 Such means may comprise a fluid delivery device, a PRN, a closed end cap or a blood pressure monitoring probe. 一旦插管器针从导管抽出,插管针是一“血污染过的尖头”,必须加以妥当处理。 Once the introducer needle is withdrawn from the catheter, the needle cannula is a "blood contaminated tip" and must be properly treated.

近年来,临床医生受病人血的污染问题已引起极大的关注,并认为“血污染过的尖头”必须加以处理以避免意外的针扎。 In recent years, the problem of pollution of the blood of patients by clinicians has caused great concern, and that "blood contaminated tip" that must be addressed in order to avoid accidental needle sticks. 由于目前出现不可治愈的和致命的疾病的缘故,例如获得性免疫缺陷综合征(“艾滋病”),这种疾病可以通过交换体液从感染者传染给其它人,因此引起人们的关注。 Due to the incurable and fatal disease of the present situation, such as Acquired Immune Deficiency Syndrome ( "AIDS"), the disease can be transmitted from an infected person to others through the exchange of body fluids, therefore cause for concern. 因此必须避免接触艾滋病感染者的体液。 It is necessary to avoid contact with body fluids of AIDS. 如上所述,如果一插管器针用来将导管放入一艾滋病感染者的血管内,通过它的锋利末端,该插管器针成为传染该种疾病的媒介物。 As described above, if an introducer needle into the catheter for a vascular AIDS, through which the sharp end of the needle cannula to become infectious diseases of the vehicle. 尽管临床医生知道需要正确处理“血污染过的尖头”,但是不幸的是,在某些医疗环境中,例如急症情况下或作为不注意或疏忽的结果,与污染的插管器针的针扎仍旧发生。 Although clinicians aware of the need to correctly handle "blood contaminated tip," but unfortunately, in certain medical environments, such as under emergency conditions or as a result of negligence or do not pay attention, and needle introducer needle contaminated tie still occur.

由于被“血污染过的尖头”意外地针扎问题的结果,已经研制了各种不同的针罩。 As a result of the accidental needle sticks problem "blood contaminated tip" has developed a variety of needle cover. 一般来说,这种针罩对其要达到的目的是见效的,但尚可加以改进。 Generally, such needle shield its object is to achieve effective, but can still be improved. 具体来说,有些针罩体积庞大难于使用,要求操作特殊的装置或技术,或者使用后会留下暴露的锋利的末端,直到临床医生手工致动针罩机构。 Specifically, some of the needle shield difficult to use bulky, requiring special equipment or operating techniques, or leave exposed a sharp tip after use, until the clinical physician manually actuating the needle shield mechanism.

此外,在针罩覆盖插管器针的锋利末端之前,有些针罩能容易地从导管套节上卸下。 Further, prior to the sharp end of the needle shield covering the needle cannula, some needle shield can be easily removed from the catheter hub. 避免这种过早卸下的一种机构是从针罩纵向延伸的多个指形物,从指形物上径向向内延伸有诸接片,指形物在导管套节的近端处与法兰接合。 Such a mechanism avoids premature is removed from a plurality of longitudinally extending fingers needle shield from the finger-shaped object such tab extending radially inwardly there, finger-shaped at the proximal end of catheter hub was engagement with the flange. 指形物和接片将针罩保持在导管上。 Finger tab and the needle shield is held on the catheter. 指形物和接片应设计成:克服指形物和接片与导管套节之间接合所需的力大于将插管器针近侧向地移入针罩通常所需的力。 Fingers and tab should be designed to: greater than the force required to overcome the engagement needle cannula proximally into generally circumferentially force required between the needle shield and the finger tab and catheter hub. 然而,一旦插管器针全部撤回到针罩内,临床医生可作用一较大的近侧向的力,以从导管套节上移去针罩。 However, once the introducer needle is withdrawn into the needle shield all, the clinician may effect a relatively large lateral force is near, to remove the needle shield from the catheter hub. 因此,针罩仍旧与导管接合,直到插管器针已完全从导管上取下并被安全地保护在针罩内。 Accordingly, the needle shield remains engaged with the catheter until the introducer needle has been completely removed from the catheter and is safely protected inside the needle shield. 不幸的是,这种结构不能始终如一地确保针罩一直连接在导管套节上,直到插管器针锁定在针罩内。 Unfortunately, this configuration can not consistently ensure that the needle shield has been attached to the catheter hub until the introducer needle locked in the needle shield. 由于污染的针可能裸露在外,增加了意外针扎的机会,所以这不是人们所希望的。 Because contaminated needles may be exposed, increasing the chance of accidental needle sticks, so this is not what people want.

发明内容 SUMMARY

因此,本发明的一个目的是提供一紧凑的针罩。 It is therefore an object of the present invention is to provide a compact needle shield.

本发明的另一个目的是提供一简单而便于使用的针罩。 Another object of the present invention is to provide a simple and easy to use of the needle shield.

本发明的又一个目的是提供一不要求操作特殊装置或技术的针罩。 Still another object of the present invention is to provide a special apparatus or operation is not required art needle shield.

本发明还有一个目的是提供一针罩,当插管器针从导管上一撤回,针罩就自动地保护插管器针的锋利的末端。 Another object of the present invention to provide a needle shield when the introducer needle is withdrawn from a catheter, the needle shield automatically to protect the sharp tip of the needle cannula.

本发明进一步的目的是提供一带有针罩的导管和插管器针的组件,其中,针罩一直保持与导管的连接,直到针罩覆盖住插管器针的锋利的末端。 A further object of the present invention to provide a catheter and introducer needle assembly with a needle shield, wherein the needle shield remains connected to the catheter, until the sharp end of the needle shield covering the needle cannula.

本发明的带有针罩的导管和插管器针的组件包括一导管,一插管器针和一针罩。 The catheter and introducer needle assembly with needle shield of the present invention comprises a catheter, a needle cannula and a needle shield.

导管具有一远端和一连接在导管套节的远端的近端。 A catheter having a distal end and a proximal end connected to the distal end of the catheter hub. 导管同轴设置在插管器针上,且导管的远端部分紧紧接合在插管器针的外表面上,以防止导管的脱开,因此,有助于将导管插入到病人的血管内。 Catheter coaxially disposed on the needle cannula and the distal portion of the catheter tightly engages the outer surface of the introducer needle to prevent disengagement of the catheter, thus, facilitate inserting a catheter into a blood vessel of the patient . 在使用前,导管位于插管器针的周围,这样,插管器针的锋利的末端在导管远端的远侧。 Before use, the catheter is located around the needle cannula so that the sharp needle distal end of the cannula at the distal end of the catheter.

插管器针具有一锋利的末端和一连接于针套节的远端上的近端。 A needle cannula having a sharp end and a proximal end connected to the distal end of the needle hub. 一反光腔形成在针套节上。 A reflecting chamber is formed on the needle hub. 通常一排气柱塞位于反光腔的敞开的近端,当血从插管器针进入反光腔时,允许空气从反光腔逸出。 A generally open proximal end of the plunger is located in the exhaust reflecting cavity, when the blood enters the chamber from the introducer needle is reflective, reflecting allow air to escape from the cavity. 沿其一远端,插管器针也可形成一不连续的部分,它可采取多种不同的形式。 First along the distal end, the introducer needle may be formed a discontinuous portion, it can take many different forms. 例如,可使用一狭槽,或形成在插管器的一直径放大的部分。 For example, a slot may be used, or formed on a diameter of the enlarged portion of the introducer. 如果使用一直径放大的部分,它可具有一减小的近端部分或一减小的远端部分或者两者兼备。 If a diameter of the enlarged portion, which may have a proximal portion or distal portion of a reduced decreased or both. 这种逐渐缩减几乎可与插管器针的纵向轴线定向成任何角度。 Such tapering may be oriented with the longitudinal axis almost the introducer needle at any angle. 在某些实施例中,远端部分可定向为大致与插管器针的纵向轴线垂直。 In certain embodiments, the distal portion can be oriented substantially perpendicular to the longitudinal axis of the needle cannula. 然而,主要的要求在于,不连续部分具有能与一锁定件共同合作的任何结构,该锁定件与针罩相连以防止插管器针相对于针罩的不妥的远侧运动。 However, the main requirement is that the discontinuity have any structure can be locked together with one of the locking member is connected to the needle shield and needle cannula to prevent distal movement with respect to improper needle shield. 换句话说,一旦锋利的末端用后撤回进针罩后,该锋利的末端不会从针罩的末端再次裸露出来。 In other words, once the withdrawal of the sharp end of the needle shield with the sharp tip is not exposed from the tip of the needle shield come out again. 该不连续部分也可与一装置共同合作,一旦插管器针的锋利的末端近侧向地撤回进针罩,该装置用来防止插管器针相对于针罩的不希望的近侧运动。 The discontinuous portion may also cooperate with a device, once the sharp end of the needle cannula is withdrawn proximally into the needle shield circumferentially, which means to prevent unwanted needle cannula proximal movement relative to the needle shield . 这防止插管器针的锋利的末端从针罩的近端再次裸露出来。 This prevents the sharp tip of the needle cannula from the proximal end of the needle shield expose again.

针罩包括一外壳,该外壳具有一插管器针能通过它而延伸的内部腔室。 A needle shield includes a housing having an internal chamber through which the introducer needle extends. 一旦插管器针近侧向地撤回进针罩内,一与针罩相连的锁定件阻止插管器针的不希望的远侧运动。 Once the introducer needle is withdrawn proximally into needle shield radially inner and a needle shield attached to the lock to prevent unwanted distal movement of the introducer needle member. 一旦插管器针的锋利的末端近侧向地撤回进针罩,还有一与针罩相连的装置用来阻止插管器针的不希望的近侧运动。 Once the sharp end of the needle cannula is withdrawn proximally into the needle shield circumferentially, there is undesirable for preventing proximal movement of the introducer needle device connected with a needle shield.

一旦插管器针的锋利的末端近侧向地撤回进针罩,可使用各种锁定件来阻止插管器针的锋利的末端跑出针罩的不希望的远侧运动。 Once the sharp end of the needle cannula is withdrawn proximally into the needle shield circumferentially, various locking member to prevent the sharp needle cannula tip unwanted distal movement of the needle shield run out. 例如,可使用一横向阻挡件,随着插入器针撤回进针罩,阻挡件跨立在针轴上,且一旦针末端位于横向阻挡件的近侧,阻挡件在锋利的末端之前移动。 For example, a transverse barrier member may be used, as the insertion needle is withdrawn into the needle shield, the blocking member straddle the needle shaft and the needle tip once the lateral blocking member positioned proximally, the blocking member moves before the sharp end. 在这样的实施例中,插入器针上不需要不连续部分。 In such an embodiment, no discontinuity on the needle inserter. 或者,可使用一连同形成在插入器针上的不连续部分的锁定件。 Alternatively, it may be used in conjunction with a discontinuous portion is formed in the insertion needle of the locking member. 在这样的实施例中,锁定件允许插入器针的不连续部分沿近侧方向移动通过锁定件,但阻止不连续部分沿远侧方向移动通过锁定件。 In such an embodiment, the locking member allows a discontinuous portion in the proximal direction of the insertion needle is moved by the locking member, but to prevent discontinuities in the distal direction by the locking member. 这样的锁定件可采取多种形式,且可包括一弹簧闸,一带有一个或多个锁定腿的片簧,其中,锁定腿具有各种结构,一具有一个或多个向内和朝向近侧的接片的管子,一带有一个或多个径向向内且从主体延伸的朝向近侧的接片的变速螺母,或一带有一个或多个形成在主体周围的径向向内的接片的固位板。 Such a locking element may take various forms, and may include a spring brake, or a plurality of locking legs having a leaf spring, wherein the locking legs have various structures, having one or more inwardly and proximally the tube webs, a radially inwardly with one or more tabs and radially inwardly extending from the shift nut body toward the proximal tabs, or with a one or more formed around the body the retention plate.

弹簧闸具有一带一对隔开的叉的大致U形结构。 Spring brake having a pair of spaced along a generally U-shaped fork structure. 插入器针设置在两叉之间且可纵向移动通过两叉。 The insertion needle disposed between the two prongs and moved longitudinally by two forks. 一偏置机构迫使弹簧闸向上与插入器针接触。 A biasing mechanism forces the spring gate up into contact with the insertion needle. 对于该实施例,在针上的不连续部分最好是一直径放大部分。 For this embodiment, the discontinuous portion in the enlarged portion of the needle is preferably a diameter. 在插入器针上紧接在直径放大部分近侧的退拨部分可用来方便于直径放大部分通过弹簧闸的近侧运动。 On the inserter needle immediately dialed back portion of the proximal portion of the enlarged diameter may be used to facilitate proximal movement of the enlarged diameter portion by the spring brake. 直径放大部分可与一面向远侧的台肩一起形成,以提供一与弹簧闸进一步有效的接合,并最大程度地减少在正常使用和正常情况下临床医生迫使插入器针的锋利的末端跑出针罩的可能性。 An enlarged diameter portion may be formed with a distally facing shoulder, to provide a further effective engagement with a spring brake and minimize under normal use and normal force clinician sharp tip of the needle is inserted Ran the possibility of the needle shield.

当插入器针近侧向地撤回进入针罩时,插入器针跨立通过弹簧闸的双叉。 When the insertion needle is withdrawn proximally into the needle shield circumferentially inserted straddle the bifurcated needle by the spring brake. 随着直径放大部分通过该双叉,直径放大部分接合双叉。 As the diameter of the enlarged portion through the double fork, an enlarged diameter portion engaging bifurcated. 这迫使弹簧闸朝向插入器针的近端转动。 This forces the spring brake toward the proximal end of the insertion needle is rotated. 弹簧闸也被迫向下抵抗偏置机构的偏压。 Forced against the brake spring biased downwardly biasing mechanism. 弹簧闸的运动允许插入器针的直径放大部分近侧向地移动通过弹簧闸。 Motion spring brake allows the diameter of the insertion needle is moved radially by an enlarged portion of the proximal spring brake. 一旦直径放大部分位于弹簧闸的近侧,偏置机构迫使弹簧闸向上且使弹簧闸的双叉朝向插入器针的远端转动。 Once enlarged diameter portion proximal of the spring gate, the biasing mechanism forces the spring gate up and that the spring brake bifurcated needle toward the distal end is inserted into the rotation. 弹簧闸的运动保证了插入器针的主体部分位于弹簧闸的双叉之间的空间内,于是双叉向上延伸通过插入器针。 The movement of the spring brake to ensure a space between the bifurcated needle is inserted into the body portion of the spring brake is located, then extend upwardly through the bifurcated needle is inserted. 在该位置上,弹簧闸邻接一台肩的面向近侧的一表面或外壳上的壁,以阻止弹簧闸的进一步的远侧向的转动。 In this position, the spring brake abuts a shoulder of a facing surface of the wall or on the housing proximal to distal to prevent further rotation of the spring brake. 因此,如果一临床医生试图向远侧推进插入器针,则直径放大部分将接合弹簧闸的双叉。 Thus, if a clinician attempted to promote the insertion needle distally, the diameter of the enlarged portion engages the bifurcated spring brake. 此外,弹簧闸将接合外壳上的壁或台肩,并阻止插入器针远侧运动。 In addition, spring brake will engage the wall or shoulder on the housing, and to prevent the insertion needle distally.

使用一片簧作为另一种锁定件,一旦插入器针的锋利的末端近侧向地撤回进插入器针罩,该阻挡件用来阻止插入器针的不希望的远侧运动。 Using a spring as a further locking member, once the sharp end of the needle is inserted into the proximal withdrawal of the insertion needle circumferentially cover the blocking member for preventing unwanted distal movement of the needle is inserted. 使用片簧,可采用任何结构的不连续部分。 Use of a leaf spring, any discontinuous portions of the structure. 然而,使用片簧时,较佳地,该不连续部分是在插入器针上的一带有面向远侧的台肩的直径放大部分。 However, the use of leaf springs, preferably, the discontinuous portion is inserted in an enlarged diameter portion with a distally facing shoulder on the needle.

片簧具有一近侧壁,一支承腿和至少一个锁定腿。 The leaf spring has a proximal wall, a support leg and at least one locking leg. 较佳地,支承腿和锁定腿构造成:锁定腿大致背向支承腿的近端延伸。 Preferably, the support leg and the locking leg is configured to: the proximal end of locking leg substantially facing away from the support leg extends 在这种结构中,支承腿和锁定腿具有一大致的V形,且V形的顶端面向远侧。 In this configuration, the support leg and the locking leg has a substantially V-shaped, and the tip of the V-shaped faces distally. 尽管优选这种结构,但可使用任何使锁定腿朝向插入器针偏置的其它的结构。 While this arrangement is preferred, but any other configuration may be used so that the locking leg is biased toward the insertion needle. 例如,锁定腿可大致垂直于支承腿或定向在小于90°的某个角度上。 For example, the locking leg can be oriented substantially perpendicular to the support leg or an angle less than 90 ° of perpendicular. 或者,锁定腿可形成为带有一对分开的双叉的大致U形或V形结构。 Alternatively, the locking leg can be formed as a substantially U-shaped or V-shaped configuration having a pair of spaced double fork. 采用这样的结构,锁定腿以与上述的弹簧闸类似的方式阻止插入器针不希望的远侧运动。 With such a configuration, with the locking leg of the spring brake described above in a similar manner to prevent undesired insertion needle distally. 此外,跨立在插入器针轴上的锁定腿的部分,其形状可与插入器针的圆周部分近似,以使跨在锁定腿上的插入器针通过的曳力减到最小。 Further, the insertion needle straddle the locking shaft portion of the leg, which may be approximately the shape of a circumferential portion of the insertion needle so that the drag force across the locking leg is inserted through the needle is minimized.

片簧的这种结构确保了锁定腿偏置于并邻接插入器针的主体部分。 This configuration ensures that the leaf spring bias within the body portion and abutting the locking leg is inserted into the needle. 然而,当插入器针近侧向地移入针罩时,该偏置仍允许锁定腿跨立在直径放大部分之上。 However, when the needle is inserted proximally into needle shield circumferentially, still allowing the biasing of the locking legs straddling over the enlarged diameter portion. 一旦直径放大部分面向远侧的台肩移动到锁定腿的近侧,则锁定腿返回到与插入器针的主体部分接触。 Back to the main leg portion in contact with the insertion needle once enlarged diameter portion moves distally facing shoulder proximal to the locking leg is locked. 此后,如果插入器针远侧向地移动,锁定腿将接合面向远侧的台肩并阻止插入器针进一步的远侧运动。 Thereafter, if the insertion needle is moved distally radially locking legs will engage distally facing shoulder and prevent further distal insertion needle movement.

片簧和外壳可构造成最大程度增大锁定腿和插入器针之间的机械接合力。 The leaf spring and the housing may be configured to increase the maximum level of mechanical bonding force between the locking leg and the insertion needle. 例如,锁定件所位于的腔室可具有一退拨的横截面,片簧可设置在其中,这样,它能远侧向地移入该退拨的截面中。 For example, the locking member is located, the chamber may have a cross-sectional dialed back, the leaf spring may be disposed therein, so that it can move radially distal section of the back of the dial.

在片簧的本实施例中,插入器针能象前述的实施例那样近侧向地撤回进针罩,直到不连续部分位于锁定腿的近侧。 In the present embodiment, a leaf spring, the needle can be inserted as in the foregoing embodiment as radially withdrawn proximally into the needle shield until the discontinuous portion of the proximal leg of the locking. 此后,如果插入器针远侧向地移动,锁定腿接合不连续部分,并使锁定件远侧移入腔室的退拨形截面内。 Thereafter, if the insertion needle is moved distally radially, discontinuous portions engaging locking legs, the locking member and the dial-shaped cross section distally back into the chamber. 这使片簧以递增的力接合插入器针,直到退拨形的横截面阻止片簧的进一步的远侧运动。 This allows the leaf spring to increasing force engages needle is inserted until the back-shaped cross section dial prevent further distal movement of the leaf spring. 在这点上,锁定腿有力地接合不连续部分,以阻止插入器针的远侧运动。 In this regard, effectively locking leg engaging discontinuous portions, in order to prevent distal movement of the insertion needle.

为了将在插入器针上的曳力减到最小,锁定腿起初可与插入器针分开。 To drag force on the needle insertion to minimize the locking leg may initially be separated from the insertion needle. 在另一实施例中,锁定腿可通过设置在片簧和外壳上的一指形物和接片,保持与插入器针的脱开。 In another embodiment, the locking leg can be provided by the leaf spring on the housing and a finger tab and disengage the needle holder and insertion. 通过插入器针的不连续部分和片簧的近侧壁的接合,片簧相对于外壳近侧向地移动,于是指形物和接片移动而相互脱开。 By bonding discontinuity proximal wall and the leaf spring is inserted into the needle, the leaf spring circumferentially moved proximally relative to the housing, and then the fingers are disengaged from each tab movement. 这通过锁定腿向内的偏置,使锁定腿移入与插入器针的接合,此后,如上所述阻止了不希望的远侧运动。 This is achieved by biasing the locking legs inwardly so that the locking leg into engagement with the insertion needle, and thereafter, as described above prevents unwanted distal movement.

在片簧的另一实施例中,腔室具有一远端部分和一近端部分,其中,远端部分的直径大于近端部分的直径。 In another embodiment of the leaf spring, the chamber having a proximal portion and a distal portion, wherein the diameter of the distal portion is greater than the diameter of the proximal portion. 片簧设置在腔室中以便从远端部分向近端部分作近侧向运动。 A leaf spring disposed in the chamber so as to be nearly lateral movement of the proximal portion from the distal portion. 当片簧设置在远侧部分时,锁定腿不与插入器针接合。 When the leaf spring is provided at the distal portion, the locking leg does not engage with the insertion needle. 随着插入器针近侧向地撤回进针罩,插入器针的不连续部分接合片簧的近侧壁。 With the insertion needle is withdrawn proximally into the needle shield circumferentially discontinuous portion of the insertion needle engages the proximal wall leaf spring. 这种接合使片簧近侧向地移动,同时插入器针移入腔室的近端部分,直到片簧的近侧壁邻接外壳的近侧壁。 This engagement radially moved proximally so that the leaf spring, while the proximal portion of the needle is inserted into the chamber, the leaf spring until the proximal wall of the housing adjacent to the proximal wall. 在这点上,阻止了片簧和插入器针的进一步的近侧运动。 In this regard, preventing further proximal movement of the leaf spring and the needle is inserted.

当片簧位于近端部分,形成腔室的诸壁迫使锁定腿向内与插入器针接合。 When the leaf spring located at the proximal portion, is formed all walls of the chamber forces the inward leg locking engagement with the insertion needle. 片簧包括柔性的、向外延伸的指形物。 The leaf spring includes a flexible, outwardly extending fingers. 在腔室内的近端部分的内壁形成具有接纳诸指形物的一面向近侧的壁的诸凹槽。 All the groove walls are formed having various receiving fingers of a proximally facing proximal end portion of the inner wall of the chamber. 当片簧位于近端部分,于是片簧的近侧壁邻接外壳的近侧壁时,指形物位于凹槽内,于是它们位于面向近侧的壁的近侧,因此,通过指形物和面向近侧的壁的接合,阻止了片簧的远侧运动。 When positioned near the side wall proximal portion of the leaf spring, the leaf spring then proximal wall adjacent to the housing, the fingers positioned within the groove, thus they are located proximally facing proximal wall, and therefore, by fingers, and a proximal wall for engagement, preventing distal movement of the leaf spring. 结果,当插入器针的不连续部分接合锁定腿时,阻止了插入器针的远侧运动。 As a result, when the needle is inserted into the discontinuous portion engages the locking leg, prevents distal movement of needle insertion.

或者,锁定腿可以这样定向:它大致垂直于支承腿并与在其上形成的一小直径开口一起形成。 Alternatively, the locking leg can be oriented such that: it is substantially perpendicular to the support leg and is formed with a small diameter opening formed thereon. 这个开口太小而不允许在插入器针上的直径放大部分通过开口,但它足够大而允许插入器针的主体部分通过其间。 This opening is too small and does not allow the needle is inserted through the opening diameter of the enlarged portion, but it is large enough to allow the body portion of the needle inserted therethrough.

通过插入器针的轴,片簧保持在一偏置位置。 By inserting the needle shaft, the leaf spring held in a biased position. 因此,当插入器针缩回进针罩时,锁定腿跨立在插入器针轴上。 Thus, when the insertion needle is retracted into the needle shield, the locking legs straddle the insertion needle shaft. 一旦插入器针的远端缩进针罩并位于锁定腿的近侧,片簧返回到其非偏置的位置。 Once the distal end of the insertion needle is retracted and the needle guard proximal the locking leg of the leaf spring returns to its non-biased position. 照这样,锁定腿移动可使锁定腿内的小直径开口与插入器针的锋利的末端对齐。 In this manner, movement of the lock allows the locking leg sharp end small diameter opening of the insertion needle aligned within the leg. 因此,如果插入器针相对于片簧远侧向地移动,则插入器针的远端移动通过在锁定腿上形成的小直径的开口。 Thus, if the insertion needle with respect to the leaf spring circumferentially moved distally, the distal end of the needle is inserted through the opening movement of a small diameter formed in the locking leg. 然而,当插入器针上的直径放大部分接合形成在锁定腿上的小直径开口时,阻止了插入器针走出针罩的远侧运动。 However, when the diameter of the enlarged portion engages the insertion needle is formed at the small-diameter opening of the locking leg, it prevents distal movement of the needle out of the insertion needle shield.

较佳地,外壳包括至少一靠近锁定腿的附加的中间壁。 Preferably, the housing comprises at least one additional intermediate wall close to the locking leg. 这中间壁包括其中的一开口,以允许插入器针的主体部分延伸通过中间壁。 This intermediate wall comprises an opening therein to permit insertion needle body portion extends through the intermediate wall. 这对插入器针提供了额外的支承,并确保片簧返回其非偏置位置时,插入器针与在锁定腿内的小直径开口对齐。 This provides additional support for the needle is inserted, and ensure that the leaf spring returns to its unbiased position, the needle is inserted in the small diameter opening aligned with the locking leg.

上述片簧的一变体包括在锁定腿上的一开口,开口的直径略大于插入器针的直径放大部分的直径。 Above the leaf spring a variant comprises a locking leg opening having a diameter slightly greater than the opening diameter of the insertion needle enlarged diameter portion. 片簧还包括一近侧壁,该壁在其中形成一开口,开口略大于插入器针的轴的直径,但小于直径放大部分的直径。 The leaf spring further comprises a proximal wall, wherein the wall is formed in an opening which is slightly larger than the shaft diameter of the needle is inserted, but smaller than the diameter of the enlarged diameter portion. 片簧还可滑动地设置在针罩的外壳上,但具有锁定腿的一端部,该锁定腿相对于外壳大致上固定就位。 The leaf spring may also be slidably disposed on the housing of the needle shield, the end portion having a locking leg, the locking leg substantially fixed in position relative to the housing. 这允许锁定腿在外壳内转动。 This allows the locking leg is rotated within the housing.

当插入器针的锋利的末端延伸超出针罩的远端时,使用前,锁定腿垂直于插入器针的纵向轴线。 When the sharp end of the insertion needle extends beyond the distal end of the needle shield, prior to use, the locking leg to the insertion needle perpendicular to the longitudinal axis. 在该位置,插入器针延伸通过在近侧壁上的开口和在锁定腿上的开口。 In this position, the insertion needle extends through an opening in the wall and an open proximal locking legs. 由于锁定腿上的开口的直径略大于直径放大部分的直径,所以它可以通过锁定腿上的开口缩回,这样直径放大部分位于锁定腿的近侧。 Since the diameter of the locking legs is slightly greater than the opening diameter of the enlarged diameter portion, so that it may be opened by retraction of the locking leg, so that an enlarged diameter portion proximal the locking leg.

一旦插入器针的直径放大部分接合近侧壁上的开口,片簧连同插入器针近侧向地移动,直到片簧的近侧壁邻接外壳的近侧壁。 Once the needle is inserted into the opening diameter of the enlarged portion engages the proximal wall, the insertion needle together with the leaf spring circumferentially moved proximally, the leaf spring until the proximal wall of the housing adjacent to the proximal wall. 由于锁定腿的一端相对于外壳基本上固定就位,片簧的近侧运动使近端腿如图所示顺时针方向转动。 One end of the locking leg substantially fixed position relative to the housing, proximal movement of the proximal end of the leaf spring leg is rotated in the clockwise direction as shown in FIG. 这改变了锁定腿上开口的取向,这样,形成该开口的一平面不再垂直于插入器针的纵向轴线。 This changes the orientation of the locking leg opening, thus forming a plane of the opening is no longer perpendicular to the longitudinal axis of the insertion needle. 取而代之,该开口是倾斜的,这样,开口的有效直径,即开口的垂直直径,小于直径放大部分的直径。 Instead, the opening is inclined so that the effective diameter of the opening, i.e., the vertical diameter of the opening, is smaller than the diameter of the enlarged diameter portion. 此外,在该位置上,与片簧相关的一制动件阻止了片簧其后的远侧运动。 Further, in this position, a leaf spring associated with the brake member preventing subsequent distal movement of the leaf spring. 因此,由于直径放大部分不能移动通过锁定腿上的开口,所以阻止了插入器针的其后的任何远侧运动。 Thus, since the diameter of the enlarged portion can not move through the locking opening of the leg, so prevents any subsequent distal movement of needle insertion.

另一种锁定件是形成在外壳上的一管子,一旦锋利的末端近侧向地撤回进针罩,它阻止插入器针的锋利的末端走出针罩的远端的远侧运动。 Another locking member is a pipe formed on the housing, once the sharp end of the needle shield proximally withdrawn radially, it prevents the sharp needle tip is inserted into the distal end of the distal movement of the needle out of the cover. 再者,尽管不连续部分的大部分形式可用于本实施例,但不连续部分最好是带有一面向远侧的台肩的直径放大部分。 Also, while most forms discrete portions may be used in the present embodiment, but is preferably discontinuous portion having an enlarged diameter portion of the distal facing shoulder. 该管子位于外壳的内部,以允许插入器针通过其间,且包括至少一个可移动的矛状突起或近侧向地向内延伸入该管的接片。 The tube is positioned inside the housing to allow insertion needle therethrough, and comprising at least one movable lance or protrusions radially extending proximally inwardly into the tube webs. 较佳地,该矛状突起或接片向内偏置。 Preferably, the spear-like protrusion or tab inwardly biased. 由于矛状突起或接片是可移动的,所以插入器针的直径放大部分连同面向远侧的台肩可近侧向地移动通过矛状突起或接片。 Since the lance projection or tab is movable, the insertion needle together with the enlarged diameter portion of the distal-facing shoulder can move proximally radially through the lance projection or tab. 一旦插入器针近侧向地撤回进针罩,这样矛状突起或接片位于面向远侧的台肩的远侧,当面向远侧的台肩接合矛状突起或接片时,将阻止插入器针的不希望的远侧运动。 Once inserted needle withdrawn proximally into needle shield circumferentially, so that the lance or tab projecting distally positioned distally facing shoulder, when the distal-facing shoulder engaging lance protrusions or contact sheet, will prevent the insert unwanted distal movement of the needle.

尽管具有一面向远侧的台肩的直径放大部分是不连续部分的优选实施例,但形成在插入器针上的凹槽也可用作不连续部分。 While having a diameter distal shoulder facing the enlarged portion is not part of the preferred embodiment of the continuous, but the grooves formed in the insertion needle is also useful as a discontinuous portion. 当插入器针近侧向地撤回进针罩时,矛状突起或接片之一延伸进入凹槽。 When the insertion needle is withdrawn proximally into the needle shield circumferentially, one protrusion or tab lance extends into the recess. 此后,当矛状突起或接片接合凹槽的近端边缘时,阻止了插入器针的远侧运动。 Thereafter, when the spear-like protrusion or tab engages the proximal edge of the recess, preventing the distal movement of the insertion needle.

另一种锁定件是形成在或添加在外壳上的变速螺母,一旦锋利的末端近侧向地撤回进针罩,该锁定件阻止插入器针走出针罩的远端的远侧运动。 Another locking member is formed on or added to the nut gear housing, once the sharp end of the needle shield proximally radially withdrawn, the locking member prevents distal movement of needle shield out of the needle is inserted into the distal end. 变速螺母位于外壳内并形成一通孔和邻近通孔的至少一个朝向近侧的、径向向内延伸的接片。 Gear nut located within the housing and a through hole is formed adjacent to the through-hole and at least one proximally directed, radially inwardly extending tab. 该通孔应略大于插入器针的直径,以允许插入器针的主体部分通过开口。 The through hole should be slightly larger than the diameter of the insertion needle to allow the needle is inserted into the body portion through the opening. 由于接片是近侧向地取向,所以不连续部分可近侧向地移动通过接片。 Since the tab is proximally oriented radially, so that the discontinuous portion may be radially moved proximally through the contact sheet.

一旦插入器针近侧向地撤回进针罩,这样,接片位于不连续部分的远侧,当不连续部分接合接片,将阻止插入器针的任何远侧运动。 Once the needle is inserted radially withdrawn proximally into the needle shield such that tab portion located distal discontinuous, a discontinuous portion when the engagement tab will prevent any distal movement of needle insertion. 如果不连续部分采用的是直径放大部分的话,要求包括在直径放大部分上的面向远侧的一台肩,以确保与接片的牢固接合。 If the discontinuity is employed an enlarged diameter portion if required comprising a distal facing shoulder on the enlarged diameter portion in order to ensure secure engagement with the tab. 或者,不连续部分可以是形成在针上的一凹槽。 Alternatively, the discontinuities portion may be formed in a recess on the pin. 当插入器针近侧向地撤回进针罩时,接片落入凹槽,由此,当接片接合该凹槽的近侧边缘时,阻止了针的任何进一步的远侧运动。 When the insertion needle is withdrawn proximally into the needle shield circumferentially, webs fall into the groove, whereby, when the tab engages the proximal edge of the groove, prevents any further distal movement of the needle. 为避免接片和凹槽对齐的困难,变速螺母可形成为带有多个接片,每个接片构造成与凹槽接合。 To avoid difficulties and tab grooves aligned, the shift nut is formed with a plurality of tabs, each tab is configured to engage the recess. 或者,插入器针可与位于插入器针周缘周围的多个纵向移位的凹槽一起形成。 Alternatively, the insertion needle may be formed with a plurality of longitudinally positioned around the peripheral edge of the insertion needle displacement groove.

还有一种锁定件实施例是位于形成在外壳上的一中间壁的近端面上的固位板,一旦锋利的末端近侧向地撤回进针罩,该锁定件阻止了插入器针的锋利的末端走出针罩的远端的远侧运动。 Another embodiment of the locking member is a proximal retention plate is positioned intermediate wall is formed on the housing surface, once the sharp end of the needle shield proximally radially withdrawn, the locking member prevents the sharp needle inserter end of the needle shield out of the distal end of distal movement. 该壁在其中形成一开口,它具有一足够大的直径允许插入器针和不连续部分通过。 The wall is formed in which an opening having a sufficiently large diameter to allow the insertion needle and by discontinuities. 固位板形成至少一个但最好多个径向向内的接片。 Retention plate forming at least one but preferably a plurality of radially inwardly directed tabs. 接片之间形成有一切去部分,该部分的半径基本上等于或略大于插入器针的主体部分的半径,但小于直径放大部分的半径。 Is formed between the tab has a cut-out portion, the portion is substantially equal to the radius or slightly larger than the radius of the body portion of the needle is inserted, but smaller than the radius of the enlarged diameter portion. 在本实施例中,该不连续部分最好是带有一面向远侧的台肩的一直径放大部分。 In the present embodiment, the discontinuity is preferably an enlarged portion having a diameter a distally-facing shoulder. 随着插入器针撤回进针罩,插入器针的主体部分在略有过盈或无过盈的情况下跨立通过固位板。 With the case where the insertion needle is withdrawn into the needle shield, the needle is inserted into the body portion in a slight interference or non-interference by the retention plate straddles. 随着插入器针相对于针罩近侧向地移动,插入器针的直径放大部分接合该固位板,接片近侧向地弯曲,于是直径放大部分可近侧向地移动通过固位板。 As the needle is inserted into the needle shield proximally with respect to radially move, the diameter of the insertion needle engages the enlarged portion of the retention plate, proximal tab is bent radially, thus the diameter of the proximal enlarged portion may be radially moved through the retention plate . 一旦针的直径放大部分位于固位板的近侧,接片返回到其未弯曲的位置并邻接中间壁的近端面。 Once enlarged diameter portion of the needle retention plate is positioned proximally of the tabs to return to its unflexed position and abuts the proximal surface of the intermediate wall. 当直径放大部分接合固位板的接片时,由于外壳壁阻止了接片避开直径放大部分的远侧向的弯曲,所以阻止了插入器针的任何其后的远侧运动。 When the diameter of the enlarged portion engages the contact retention plate sheet, since the housing wall to prevent the tab away from the curved portion distal to the enlarged diameter, so to prevent any subsequent distal movement of the needle is inserted.

一旦插入器针的锋利的末端近侧向地撤回进针罩,从而阻止插入器针的进一步的近侧运动的装置可采取多种形式。 Once the sharp needle tip is inserted into the needle shield proximally withdrawn radially, thereby preventing further proximal movement of the inserter device the needle can take many forms. 例如,在不连续部分是直径放大部分的情况下,外壳可包括一近侧的开口,它的直径足以允许插入器针的主体部分从其中延伸通过,但太小而不允许插入器针的直径放大部分通过其间。 For example, in the case of the discontinuous portion of the enlarged diameter portion, the housing can include a proximal opening, its diameter is sufficient to allow the insertion needle body portion from which extends through, but too small a diameter do not allow the insertion of needle amplifying section therethrough. 或者,不管插入器针的不连续部分采取何种结构或插入器针上何处不使用不连续部分,可使用一连接针套节和针罩的系链。 Alternatively, regardless of the discontinuous portion of the insertion needle where the needle is not used to take the discontinuity or interposer structures which may be used tether connecting needle hub and a needle shield.

针罩最好还包括一弹簧夹子,它连接针罩和导管套节且保持这种连接,直到插入器针的锋利的末端撤回进针罩并锁定在位。 Preferably a needle shield further comprises a spring clip that connects the needle shield and the catheter hub and maintain this connection until a sharp needle tip is inserted into the needle shield is withdrawn and locked in place. 该弹簧夹子可采取多种形式。 The spring clip can take many forms.

在一实施例中,针罩包括一具有一夹子臂的弹簧夹子,夹子臂与导管套节接合。 In one embodiment, the needle shield comprising a clamp arm having a spring clip, with the clip arm engages the catheter hub. 弹簧夹子偏置于一位置,在该位置夹子臂不与导管套节接合。 A biasing spring clip in position, clamp arm is not engaged with the catheter hub in this position. 弹簧夹子保持在一偏置的位置,其中夹子臂通过插入器针轴接合导管套节。 A spring clip remains in the position offset, wherein the clip arm engages the catheter hub by inserting the needle shaft. 因此,只要插入器针远侧延伸通过弹簧夹子,夹子臂仍然保持与导管套节接合,且导管套节保持与针罩连接。 Thus, as long as the insertion needle extending distally through the spring clip, the clip arms remains engaged with the catheter hub and the catheter hub connected to the needle shield holder. 一旦插入器针的锋利的末端近侧向地撤回通过弹簧夹子,夹子臂移动与导管套节脱开接合。 Once the sharp end of the needle is inserted through the proximal withdrawal of the spring clip circumferentially, clip arm moving the catheter hub is disengaged. 这允许导管套节从针罩上分离。 This allows the catheter hub from the needle cover separated. 这种结构确保插入器针仍然保持与导管的接合,直到插入器针完全从导管中移出并完全地保护在针罩内。 This arrangement ensures that insertion needle remains engaged with the catheter until the needle is fully inserted into the catheter and removed from the completely protected within the needle shield.

弹簧夹子可与上述的任何一种锁定件组合使用,以阻止插入器针相对于针罩的不希望的远侧运动。 The spring clip can be locked with any one of the above elements in combination, the insertion needle to prevent undesired relative distal movement of the needle shield. 此外,弹簧夹子可与这些锁定件中任何一种一起一体形成,或与它们分开形成。 Further, the spring clip may be integrally formed with any of the locking member, or they are formed separately.

弹簧夹子的特殊结构可采取多种不同的形式,且可以不同的方式在外壳内定向。 The special structure of the spring clip may take many different forms, and may be oriented in different ways within the housing. 例如,弹簧夹子可具有大致的V或U形结构。 For example, the spring clip may have a substantially V or U-shaped configuration. 在本实施例中,弹簧夹子位于外壳内垂直于插入器针的纵向轴线,这样,V形或U形结构从针罩的端横截面图上是易于表现的。 In the present embodiment, the spring clip is located perpendicular to the insertion needle of the longitudinal axis, so that, V-shaped or U-shaped configuration cross-sectional view from the end of the needle shield performance is easily within the housing. 因此,V形的一个腿通过与插入器针的轴直接接触保持在其靠近另一腿的偏置位置。 Thus, a V-shaped leg is inserted through the shaft and in direct contact with the needle is held in its biased position close to the other leg. 在这种结构中,弹簧夹子包括一基本平行于插入器针的纵向轴线延伸的夹子臂,并与一大致垂直于夹子臂的纵向轴线取向的导管套节上的一制动件接合。 In this configuration, the spring clip comprising a needle inserted substantially parallel to the longitudinal axis of the clip arm extending substantially perpendicular to and engages with a brake member to a section on the longitudinal axis of the catheter hub clip arm oriented. 当插入器针撤回到弹簧夹子的近侧,它返回到其非偏置的位置,这样,夹子臂横向地移动,即基本上垂直于插入器针的纵向轴线,与导管套节脱开接合。 When the needle is inserted to withdraw a spring clip proximally, it returns to its non-biased position such that the clip arm is moved laterally, i.e. substantially on the longitudinal axis of the insertion needle, the catheter hub disengaged vertically.

在另一个替代的实施例中,弹簧夹子基本上是直的且通过插入器针的轴弯曲进入其偏置位置。 In another alternative embodiment, the spring clip are substantially straight and curved needle by inserting the shaft into its biased position. 在本实施例中,夹子臂具有一钩形结构,钩子的一个腿垂直于插入器针的纵向轴线延伸,钩子面向远侧。 In this embodiment, the clip arms having a hook-shaped configuration, one leg of the hook insertion needle extends perpendicular to the longitudinal axis of the hook facing distally. 当插入器针移动到弹簧夹子的近侧时,它返回到其非偏置的位置,这样,夹子臂横向移动与导管套节脱开接合。 When the insertion needle is moved to the proximal spring clip, it returns to its non-biased position such that the clip arm is moved laterally to disengage the catheter hub.

弹簧夹子也可是大致的V形或U形,但在外壳内定向为与插入器针的纵向轴线对齐,这样,在插入器针的俯视截面图中,该V形或U形结构是可见的。 The spring clip may also be substantially V-shaped or U-shaped, but is oriented aligned with the insertion needle longitudinal axis within the housing, so that, in a plan sectional view of the insertion needle of the V-shaped or U-shaped structure is visible. 在这种结构中,夹子臂大致平行于插入器针的纵向轴线延伸并直接与导管套节接合。 In this configuration, clip arm substantially parallel to the longitudinal axis of the insertion needle extending and directly engages the catheter hub. 然而,要求有一分离的偏置臂,它基本上垂直于插入器针的纵向轴线延伸并连接到V形或U形的每个腿,于是插入器针可偏置弹簧夹子与导管套节接合。 However, requires a separate biasing arms, which extend substantially perpendicularly to the longitudinal axis of the insertion needle and connected to a V-shaped or U-shaped legs each, then the insertion needle may be biased with the spring clip engages the catheter hub. 每个偏置臂在其中形成一开口,插入器针延伸通过开口以达到这种偏置要求。 Each biasing arms in an opening formed therein, the insertion needle extends through an opening bias to achieve this requirement. 一旦插入器针移到偏置臂的近侧,弹簧夹子的腿可移到它们的非偏置的位置与导管套节脱开接合。 Once the insertion needle is moved proximally offset arm, the spring clip leg may be moved to their non-biased position disengaged from the catheter hub. 或者,弹簧夹子可仅与一个腿一起形成,这样弹簧夹子具有一大致的L形结构。 Alternatively, the spring clip may be formed with only one leg, so that the spring clip has a substantially L-shaped structure.

在片簧使用大致垂直于插入器针的锁定腿的情形中,弹簧夹子可与锁定腿联系在一起。 In the case of the use of the leaf spring substantially perpendicularly to the locking leg is inserted into the needle, the spring clip may be associated with the locking legs. 弹簧夹子可枢转地连接在针罩外壳上,这样,通过锁定腿的运动,使它在一夹紧位置和一未夹紧位置之间枢转。 The spring clip is pivotally connected to the needle shield housing, so that, by locking the movement of the legs, so that it is pivotable between a clamping position and an unclamped position. 或者,弹簧夹子可形成为一从锁定腿远侧向地延伸的钩子,这样,锁定腿从非保护到保护位置的运动使钩子从一夹紧位置到非夹紧位置运动。 Alternatively, the spring clip may be formed from a distal locking hook leg extending radially, so that the locking leg from the unprotected position to the protective movement of the hook from a clamping position to the unclamped position.

对于上述使用一偏置臂的实施例,可使用一将插入器针上的曳力减到最小的装置。 For the above-described embodiment using a bias arm, using a minimum drag on the apparatus needle insertion reduced. 这种装置是一下垂物或从在偏置臂上的开口沿大致平行于插入器针的纵向轴线延伸的指形物。 Such a device is substantially parallel to the drooping or the longitudinal axis of the insertion needle extending from the opening fingers in the biased arm. 或者,在使用两个偏置臂的情形中,可组合使用一销和系链。 Alternatively, in the case of using two bias arms can be combined using a pin and a tether. 通过偏置臂延伸的销保持开口处于正确的对齐,于是插入器针在开口的侧边不会绊住。 By biasing arms extending holding pin is in the correct alignment of the opening, then inserted in the open-sided needle is not caught. 一连接销和针套节的系链将销拉出偏置臂并允许弹簧夹子返回到其非偏置的位置。 A tether connecting pin and the needle hub is pulled out of the pin and allows the arm bias spring clip to return to its unbiased position.

在使用两个偏置臂的情形中,互锁的指形物可位于偏置臂的端部,这样,一旦插入器针撤回到偏置臂的近侧,互锁指形物锁定在一起以保证通过偏置臂形成一不失效的横向阻挡件。 In the case where two biasing arms, the interlocking fingers may be located at the end portions of the biasing arms, so that, upon insertion needle is withdrawn to a proximal biasing arms, interlocking fingers locked together ensure the formation of a transverse barrier not to be invalidated by the biasing arms.

在弹簧夹子的另一实施例中,弹簧夹子可与一大致X形结构一起形成。 In another embodiment, a spring clip, the spring clip may be formed with a generally X-shaped structure. 在本实施例中,弹簧夹子在外壳内定向为X形与插入器针的纵向轴线对齐,这样,在插入器针的俯视横截面图中,弹簧夹子的X形是可见的。 In the present embodiment, the spring clip within the housing longitudinal axis X oriented needle-shaped insertion are aligned so that, in a top cross-sectional view of the needle is inserted, the X-shaped spring clip is visible. 在本实施例中,插入器针保持X形的诸腿的远端部分分开,于是它们接合导管套节的内部。 In the present embodiment, the distal end portion of the insertion needle holding various X-shaped legs apart, so they engage the interior of the catheter hub. 因此,一旦插入器针撤回到腿的相交处的近侧,腿的远端部分可向内移动以与导管套节脱开接合。 Thus, once the inserter needle proximally to withdraw the leg at the intersection, the distal end portions of the legs can be moved inwardly to disengage the catheter hub engaged.

对于所有上述的实施例,夹子臂可构造成与导管套节的内部或外部接合。 For all the embodiments described above, the clip configured to engage the arms may be internal or external to the catheter hub. 此外,夹子臂可构造成摩擦地或机械地与导管套节接合。 Further, the clip arm may be configured to frictionally or mechanically engage the catheter hub. 如果要求一机械的接合,夹子臂其中可具有一制动件,它与形成在导管套节上的一互补的制动件接合。 A mechanical engagement if desired, wherein the clip arm has a stopper which engages with a complementary detent formed in the hub of the catheter. 互补的制动件可包括:例如,一凹槽和一指形物,或一任何几何形的柱。 The brake member may include complementary: for example, a recess and one finger, or a geometric any column. 不管用何种特殊结构,主要的要求是使夹子臂与导管套节接合,于是令临床医生难于从针罩上移去导管套节,直到插入器针的锋利的末端在针罩内被保护起来。 Regardless of the particular structure used, the main requirement is that the clip arm engages the catheter hub, so it is difficult to make the clinician needle cover is removed from the catheter hub until the sharp tip of the insertion needle is protected inside the needle shield .

附图说明 BRIEF DESCRIPTION

附图示出了诸优选的实施例,其中,相同的标号表示相同的元件,且其中:图1是带有本发明的针罩的一标准导管和插入器针的组件的立体图,其中导管为局部剖视;图2是带有本发明的针罩的一体的导管和插入器针的组件的立体图;图3A是插入器针远端部分的放大的正面图,该插入器针采用了用于带有本发明针罩的导管和插入器针的组件上的不连续部分的一个实施例;图3B是插入器针远端部分的放大的正面图,该插入器针采用了用于带有本发明针罩的导管和插入器针的组件上的不连续部分的第二实施例; The drawings illustrate various preferred embodiments, wherein like reference numerals denote like elements, and wherein: FIG 1 is a perspective view of the needle shield assembly of the present invention with a standard catheter and insertion needle of FIG, wherein the conduit is a partial cross-sectional view; FIG. 2 is a perspective view of the assembly of the catheter and insertion needle integral with a needle shield of the present invention; FIG. 3A is an enlarged front view of the distal end portion of the insertion needle, the insertion needle for use a discontinuity on the catheter and insertion needle assembly with needle shield of the present embodiment of the invention; FIG. 3B is an enlarged front view of the distal end portion of the insertion needle, the insertion needle for use with the present the second embodiment of the discontinuous portion of the catheter insertion needle and needle shield assembly of the present invention;

图3C是插入器针远端部分的放大的正面图,该插入器针采用了用于带有本发明针罩的导管和插入器针的组件上的不连续部分的第三实施例;图3D是插入器针远端部分的放大的正面图,该插入器针采用了用于带有本发明针罩的导管和插入器针的组件上的不连续部分的第四实施例;图3E是插入器针远端部分的放大的正面图,该插入器针采用了用于带有本发明针罩的导管和插入器针的组件上的不连续部分的第五实施例;图3F是插入器针远端部分的放大的正面图,该插入器针采用了用于带有本发明针罩的导管和插入器针的组件上的不连续部分的第六实施例;图3G是插入器针远端部分的放大的正面图,该插入器针采用了用于带有本发明针罩的导管和插入器针的组件上的不连续部分的第七实施例;图4是带有阻止插入器针不希望的远侧运动的锁定件的第一实施例的 FIG 3C is an enlarged front view of the distal end portion of the insertion needle, the insertion needle of the third embodiment uses a discontinuous portion on the catheter and insertion needle assembly is used with a needle shield of the present invention; FIG. 3D inserting the distal end portion is an enlarged front view of the needle, the needle is inserted using a fourth embodiment of the discontinuous portion of the assembly for inserting a catheter and needle with a needle shield of the present invention; FIG. 3E is inserted an enlarged front view of the distal portion of the needle, the needle is inserted into the fifth embodiment uses a discontinuous portion of the assembly for inserting a catheter and needle with a needle shield of the present invention; FIG. 3F is inserted into the needle an enlarged front view of the distal portion of the needle is inserted into the sixth embodiment uses a discontinuous portion of the assembly for inserting a catheter and needle with a needle shield of the present invention; FIG. 3G is inserted into the distal end of the needle an enlarged front view of a portion of the needle is inserted into the seventh embodiment uses a discontinuous portion of the assembly for inserting a catheter and needle with a needle shield of the present invention; FIG. 4 is inserted into the needle does not stop with the first embodiment of the desired movement of the distal locking member 罩的横截面图,其中针罩处于第一位置,即带有插入器针的锋利的末端的插入器针的远端部分伸出针罩的远端;图5是带有阻止插入器针不希望的远侧运动的锁定件的第一实施例的针罩的横截面图,其中针罩处于第二位置,即带有插入器针的锋利的末端的插入器针的远端部分撤回进针罩;图6是带有阻止插入器针不希望的远侧运动的锁定件的第一实施例的针罩的横截面图,其中带有插入器针的锋利的末端的插入器针的远端部分锁定在针罩内;图7是用于图4至6所示的阻止插入器针不希望的远侧运动的锁定件的第一实施例的弹簧闸的立体图;图8是带有阻止插入器针不希望的远侧运动的锁定件的第二实施例的针罩的立体横截面图;其中带有插入器针的锋利的末端的插入器针的远端部分伸出针罩的远端;图9是带有阻止插入器针不希望的远侧运动的锁定件的 A cross-sectional view of a cover, wherein the needle shield in the first position, the distal end portion of the insertion needle with a sharp tip, that is inserted into the needle extends beyond the distal needle shield; FIG. 5 is inserted into the needle does not stop with cross sectional view of a first embodiment of the needle shield of the locking member distally a desired motion, wherein the needle shield in the second position, the distal end portion of the insertion needle with a sharp tip that is inserted into the needle withdrawn into the needle cover; FIG. 6 is a cross-sectional view of a first embodiment of the needle shield with the insertion needle to prevent unwanted distal movement of the locking member, wherein the distal end of the insertion needle with a sharp tip of a needle inserted partly locked in the needle shield; FIG. 7 is a perspective view of a spring brake of a first embodiment shown in FIGS. 4 to 6 is inserted into the needle to prevent unwanted distal movement of the locking member; FIG. 8 is inserted with blocking a perspective cross-sectional view of a second embodiment of the needle shield of the needle locking member distal undesired movement; wherein a distal portion of the insertion needle with a sharp tip needle is inserted into the distal end of the needle shield projecting ; FIG. 9 is locked with the insertion needle to prevent unwanted distal movement of the member 二实施例的针罩的横截面图,其中带有插入器针的锋利的末端的插入器针的远端部分锁定在针罩内;图10是图8和9所示的阻止插入器针不希望的远侧运动的锁定件的第二实施例的片簧的立体图;图11是带有阻止插入器针不希望的远侧运动的锁定件的第三实施例的针罩的立体横截面图;其中带有插入器针的锋利的末端的插入器针的远端部分伸出针罩的远端;图12是带有阻止插入器针不希望的远侧运动的锁定件的第三实施例的针罩的横截面图,其中带有插入器针的锋利的末端的插入器针的远端部分锁定在针罩内;图13是图11和12所示的阻止插入器针不希望的远侧运动的锁定件的第三实施例的片簧的立体图;图14是带有阻止插入器针不希望的远侧运动的锁定件的第四实施例的针罩的示意横截面图;其中带有插入器针的锋利的末端的插入器针的远端部分伸出针 Two cross-sectional view of an embodiment of the needle shield, wherein the distal end portion of the insertion needle with a sharp tip of the insertion needle is locked in the needle shield; FIG. 10 is shown in FIGS. 8 and 9 does not prevent the insertion needle a perspective view of a second embodiment of the leaf spring a locking member distally a desired movement; FIG. 11 is a perspective cross-sectional view of the needle shield locking member with the third embodiment of the insertion needle to prevent unwanted distal movement of ; wherein the distal portion of the insertion needle with a sharpened tip of the needle extends beyond the distal insertion needle shield; FIG. 12 is a third embodiment of the locking member with distal movement of the insertion needle to prevent undesired cross-sectional view of the needle shield, wherein the distal end portion of the insertion needle with a sharp tip of the insertion needle is locked in the needle shield; FIG. 11 and FIG. 13 is to prevent the insertion needle 12 shown in undesirable far a schematic cross-sectional view of the needle shield to a fourth embodiment of the locking member 14 is inserted with a needle to prevent unwanted distal movement;; a perspective view of a third embodiment of the leaf spring a locking member wherein movement of the belt side insertion needle sharpened needle tip is inserted into the distal end portion of the needle projecting 的远端;图15是带有阻止插入器针不希望的远侧运动的锁定件的第四实施例的针罩的示意横截面图,其中带有插入器针的锋利的末端的插入器针的远端部分锁定在针罩内;图16是带有阻止插入器针不希望的远侧运动的锁定件的第五实施例的针罩的示意横截面图;其中带有插入器针的锋利的末端的插入器针的远端部分伸出针罩的远端;图17是带有阻止插入器针不希望的远侧运动的锁定件的第六实施例的针罩的示意横截面图;其中带有插入器针的锋利的末端的插入器针的远端部分伸出针罩的远端;图18是带有阻止插入器针不希望的远侧运动的锁定件的第六实施例的针罩的示意横截面图;其中带有插入器针的锋利的末端的插入器针的远端部分锁定在针罩内;图19是带有阻止插入器针不希望的远侧运动的锁定件的第七实施例的针罩的立体横截面图;其中带有 The distal end; FIG. 15 is a schematic cross-sectional view of a fourth embodiment of the needle shield locking member to prevent distal movement of the insertion needle with undesired, wherein the sharp tip of the insertion needle with the insertion needle the distal end portion is locked in the needle shield; FIG. 16 is a schematic cross-sectional view of a stop with the needle shield to the fifth embodiment of the locking member is inserted into the needle distal undesired movement; wherein the inserter needle with sharp inserting a distal portion of the needle extends beyond the distal end of the needle shield; FIG. 17 is to prevent the needle shield with the sixth embodiment of the locking member insertion needle unwanted distal movement of a schematic cross-sectional view; wherein the distal end portion of the insertion needle with a sharp tip of the insertion needle projecting distal end of the needle shield; FIG. 18 is a sixth embodiment with the locking member to prevent undesired insertion needle distal movement a schematic cross-sectional view of the needle shield; wherein a distal portion of the insertion needle with a sharp tip of the insertion needle is locked in the needle shield; FIG. 19 is a distal movement of the locking member with the insertion needle to prevent undesired a perspective cross-sectional view of a seventh embodiment of the needle shield; wherein with 入器针的锋利的末端的插入器针的远端部分伸出针罩的远端;图20是带有阻止插入器针不希望的远侧运动的锁定件的第七实施例的针罩的立体横截面图;其中带有插入器针的锋利的末端的插入器针的远端部分锁定在针罩内;图21是图19和20所示的阻止插入器针不希望的远侧运动的锁定件的第七实施例的片簧的立体图;图22是带有阻止插入器针不希望的远侧运动的锁定件的第八实施例的针罩的示意的横截面图;其中带有插入器针的锋利的末端的插入器针的远端部分伸出针罩的远端;图23是带有阻止插入器针不希望的远侧运动的锁定件的第八实施例的针罩的示意横截面图;其中带有插入器针的锋利的末端的插入器针的远端部分锁定在针罩内;图24是锁定件第八实施例的片簧的远端的视图,该锁定件阻止插入器针的不希望的远侧运动,且具有如图22所示的取 The sharp needle distal end portion of the insertion needle extends beyond the distal end of the needle shield; FIG. 20 is a seventh embodiment of the needle shield with the locking member to prevent undesired insertion needle distal movement of a perspective cross-sectional view; wherein a distal portion of the insertion needle with a sharp tip of the insertion needle is locked in the needle shield; FIG. 21 is to prevent the insertion needle 20 shown in FIGS. 19 and distal movement of the undesired a perspective view of a seventh embodiment of the leaf spring a locking member; FIG. 22 is a schematic cross-sectional view of an eighth embodiment of the needle shield of the embodiment with the locking member to prevent undesired insertion needle distal movement; with inserted wherein the distal end portion of the insertion needle sharpened tip of the needle extends beyond the distal needle shield; FIG. 23 is an eighth embodiment of the needle shield with a locking member to prevent undesired insertion needle distal movement of a schematic cross-sectional view; wherein a distal portion of the insertion needle with a sharp tip of the insertion needle is locked in the needle shield; FIG. 24 is a distal end of the leaf spring member of an eighth embodiment of a view of the lock, the locking member prevents unwanted distal movement of the needle is inserted, and having taken as shown in FIG. 22 ;图25是锁定件第八实施例的片簧的远端的视图,该锁定件阻止插入器针的不希望的远侧运动,且具有如图23所示的取向;图26是带有阻止插入器针不希望的远侧运动的锁定件的第九实施例的针罩的横截面图,其中带有插入器针的锋利的末端的插入器针的远端部分伸出针罩的远端;图27是带有阻止插入器针不希望的远侧运动的锁定件的第九实施例的针罩的横截面图,其中带有插入器针的锋利的末端的插入器针的远端部分锁定在针罩内;图28是如图26和27所示的锁定件的第九实施例的管子的立体横截面图,该锁定件阻止插入器针的不希望的远侧运动;图29是带有阻止插入器针不希望的远侧运动的锁定件的第十实施例的针罩的横截面图,其中带有插入器针的锋利的末端的插入器针的远端部分伸出针罩的远端;图30是带有阻止插入器针不希望的远侧运动的锁定 ; FIG. 25 is a view of an eighth embodiment of the distal end of the locking leaf spring, unwanted distal movement of the needle member to prevent the locking insert, and has the orientation shown in FIG. 23; FIG. 26 is blocked with cross-sectional view of a ninth embodiment of the needle shield of the needle is inserted into the locking member unwanted distal movement, wherein the distal end portion of the insertion needle with a sharp tip of the distal end of the insertion needle projecting needle shield ; FIG. 27 is a cross-sectional view of a ninth embodiment of the needle shield locking member to prevent distal movement of the insertion needle with undesired, wherein the distal portion of the insertion needle with a sharpened tip of the needle is inserted locked in the needle shield; FIG. 28 is shown in FIG. 26 and lock 27 a perspective cross-sectional view of a ninth embodiment of the tube member, the locking member prevents the insertion needle unwanted distal movement; FIG. 29 is cross-sectional view of a tenth embodiment of the needle shield locking member to prevent distal movement of the insertion needle with undesired, wherein the distal end portion of the insertion needle with a sharp tip of the insertion needle projecting needle shield FIG 30 is locked with the insertion needle to prevent unwanted distal movement; the distal end 件的第十实施例的针罩的横截面图,其中带有插入器针的锋利的末端的插入器针的远端部分锁定在针罩内;图31是带有阻止插入器针不希望的远侧运动的锁定件的第十实施例的针罩的横截面图,其中带有如图3F所示插入器针的锋利的末端的插入器针的远端部分锁定在针罩内;图32是阻止插入器针不希望的远侧运动的、如图29至31所示的锁定件的第十实施例的变速螺母的立体图;图33是一导管、一插入器针和针罩的分立的立体图,针罩带有阻止插入器针不希望的远侧运动的锁定件的第十一实施例以及弹簧夹子的第一实施例,该弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩内;图34是针罩的一局部的横截面图,该针罩带有阻止插入器针不希望的远侧运动的锁定件的第十一实施例,弹簧夹子的第一实施例,该弹簧夹子连接针罩和导管 A cross-sectional view of a tenth embodiment of the needle shield member, wherein the distal end portion of the insertion needle with a sharp tip of the needle is inserted into a lock in the needle shield; FIG. 31 is inserted with a needle to prevent undesired cross-sectional view of a tenth embodiment of the needle shield distal movement of the locking member, wherein the distal end portion shown in Figure 3F with the insertion needle sharpened tip of the needle is inserted into the lock in the needle shield; FIG. 32 is the insertion needle to prevent unwanted distal movement of the gear nut perspective view of a tenth embodiment of the locking member 29 to 31 shown in FIG.; FIG. 33 is a conduit, a perspective view of a separate needle insertion and needle shield , with a needle shield to prevent eleventh embodiment and the first embodiment of the spring clip needle is inserted into the locking member unwanted distal movement of the needle shield spring clip connector and the catheter hub until the needle is inserted into the sharp end locked in the needle shield; FIG. 34 is a partial cross-sectional view of the needle shield, the needle shield eleventh embodiment of the inserter needle unwanted distal movement of the locking member with a stop, the spring clip one embodiment, the spring clip needle guard and the catheter connector 节,直到插入器针的锋利的末端锁定在针罩内,插入器针的一部分和导管套节的近端部分,其中插入器针的锋利的末端从针罩的远端伸出且针罩连接于导管套节;图35是针罩的一局部的横截面图,该针罩带有阻止插入器针不希望的远侧运动的锁定件的第十一实施例,弹簧夹子的第一实施例,该弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩内,插入器针的远端部分和导管套节的近端部分,其中插入器针的锋利的末端锁定在针罩内且针罩与导管套节脱开;图36A是图33至35所示的弹簧夹子的第一实施例的立体图,该弹簧夹子将针罩连接到导管套节,直到插入器针的锋利的末端锁定在针罩内;图36B是图36A所示的弹簧夹子的第一实施例的一变体的立体图,该弹簧夹子将针罩连接到导管套节,直到插入器针的锋利的末端锁定在针罩内;图 Section, until the sharp tip of the insertion needle locked in the needle shield, a portion of the proximal portion of the catheter and insertion needle hub, wherein the sharp tip of the insertion needle extending from the distal end of the needle shield and the needle shield connector a catheter hub; FIG. 35 is a partial cross-sectional view of the needle shield, the needle shield eleventh embodiment of the inserter needle unwanted distal movement of the locking member with a stop, a first embodiment of the spring clip the spring clip connecting needle shield and the catheter hub until the needle is inserted into the sharp tip of the needle shield is locked in, a sharp distal end portion and a proximal portion of the catheter is inserted into the needle hub, the needle is inserted locking needle shield and the catheter hub in the disengaged needle shield; FIG. 36A is a perspective view of a first embodiment of the spring clip shown in FIGS. 33 to 35, the spring clip connecting the needle shield to the catheter hub until the inserter sharp tip of the needle locked in the needle shield; FIG. 36B is a perspective view of a variant of the first embodiment of the spring clip shown in FIG. 36A, the spring clip connecting the needle shield to the catheter hub until the needle is inserted sharp tip locked in the needle shield; FIG. 36C是图36A所示的弹簧夹子的第一实施例的又一变体的立体图,该弹簧夹子将针罩连接到导管套节,直到插入器针的锋利的末端锁定在针罩内;图37A是图33至35所示的锁定件的第十一实施例的固位板的立体图,该锁定件阻止插入器针不希望的远侧运动;图37B是图37A所示的固位板的一变体的局部剖面的示意图,固位板邻接针罩外壳的内壁的近端表面;图37C是图37A所示的固位板的另一变体的局部剖面的示意图,固位板邻接针罩外壳的内壁的近端表面;图38是图34所示的针罩沿线38-38的横截面图,图中示出弹簧夹子的夹子臂如何沿形成在外壳上的斜坡移动;图39是图35所示的针罩沿线39-39的横截面图,图中示出弹簧夹子的夹子臂如何沿形成在外壳上的斜坡移动;图40是弹簧夹子的第一实施例,插入器针的一部分和导管套节的一部分的示意的立体图,该弹簧夹子带 36C is a perspective view of a further variant of the first embodiment of the spring clip shown in FIG. 36A, the spring clip connecting the needle shield to the catheter hub until the needle is inserted into the sharp tip of the needle shield in a locked; FIG. 37A 33 is a perspective view of the retention plate to the eleventh embodiment of the locking member 35 illustrated, the needle is inserted into the locking member prevents unwanted distal movement; FIG. 37B is a retention plate 37A shown in FIG. a schematic partial cross-sectional view of the variant, the proximal end of the inner wall surface of the retainer plate adjacent the housing of the needle shield; FIG. 37C is a schematic partial cross-sectional view of another variation of the retention plate as shown in FIG 37A, the needle shield abut the retention plate an inner wall surface of the proximal end of the housing; FIG. 38 is a cross-sectional view of the needle shield along line 38-38 shown in FIG. 34, the spring clip is shown how the clip arm moves along a ramp formed on the casing; FIG. 39 is a diagram cross-sectional view along line needle shield shown in 3539-39, is shown how a spring clip, clip arm moves along a ramp formed on the casing; FIG. 40 is a first embodiment of a spring clip, the insertion portion of the needle and a schematic perspective view of a portion of the catheter hub, with the spring clip 一连接针罩和导管套节的横向阻挡件,直到插入器针的锋利的末端锁定在针罩内,其中,插入器针的锋利的末端从针罩的末端延伸出去且针罩连接到导管套节上;图41是图40所示的弹簧夹子的示意的立体图,其中插入器针的锋利的末端锁定在针罩内且针罩与导管套节脱开;图42是导管、插入器针、系链和带有弹簧夹子第二实施例的针罩的一分立的立体图,该夹子带有连接针罩和导管套节的一横向阻挡件,直到插入器针的锋利的末端锁定在针罩内;图43是带有弹簧夹子第二实施例的针罩、插入器针的一部分、系链、针罩和导管套节的近端部分的一横截面图,该弹簧夹子带有一连接针罩和导管套节的横向阻挡件,直到插入器针的锋利的末端锁定在针罩内,该导管套节带有插入器针的锋利的末端从针罩的末端延伸出去且针罩连接到导管套节上;图44是带有 A connecting needle hub and catheter hub of the transverse barrier, until the sharp end of the insertion needle locked in the needle shield, wherein the sharp end of the insertion needle extending from the tip of the needle shield out and the needle shroud is connected to the catheter hub upper section; FIG. 41 is a schematic perspective view of the spring clip shown in FIG. 40, wherein the sharp tip of the insertion needle locked in the needle shield and the needle shield and the catheter hub is disengaged; FIG. 42 is a catheter insertion needle, a perspective view of a separate tether and needle shield with the spring clip of the second embodiment, the connection of the clip with the needle shield and the catheter hub of a transverse barrier, until the sharp tip of the insertion needle locked in the needle shield ; FIG. 43 is a needle shield with the spring clip of the second embodiment, a portion of the insertion needle, the tether, the needle shield and a cross-sectional view of the proximal portion of the catheter hub, the spring clip connector with a needle shield and catheter hub section transverse barrier, until the sharp tip of the insertion needle locked in the needle shield, the catheter hub with the sharp end of the needle is inserted from the tip of the needle extending out of the cover and the needle shield is connected to the catheter hub on; FIG. 44 is with 簧夹子第二实施例的针罩、针套节的远端部分、插入器针的远端部分、系链和导管套节的近端部分的一横截面图,该弹簧夹子带有一连接针罩和导管套节的横向阻挡件,直到插入器针的锋利的末端锁定在针罩内,该导管套节带有的插入器针的锋利的末端锁定在针罩内且针罩与导管套节脱开;图45是图42至44所示的带有一横向阻挡件的弹簧夹子的第二实施例的立体图;图46是一体的导管、一插入器针和带有一体的夹子锁定件的第一实施例的针罩的分立的立体图,夹子锁定件连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩里且阻止插入器针的不希望的远侧运动;图47是带有一体夹子锁定件的第一实施例的针罩、插入器针的一部分和导管套节的近端部分的立体的局部剖视图,夹子锁定件连接针罩和导管套节,直到插入器针的锋利的末端锁定在 Needle shield spring clip of the second embodiment, the distal end portion of the needle hub, the distal end portion of the insertion needle, the tether and a cross-sectional view of the proximal portion of the catheter hub, the spring clip connector with a needle shield and lateral barrier catheter hub until the needle is inserted into the sharp tip of the needle shield in a locked, needle sharp tip is inserted into the catheter hub with needle shield is locked in the needle shield and the catheter hub off open; FIG. 45 is a perspective view of a second embodiment of the spring clip with a transverse blocking member is shown in FIGS. 42 to 44; FIG. 46 is an integral catheter, a needle is inserted into and integrally with the locking member of the first clip a perspective view of a separate needle shield of the embodiment, the clip locking member connected to the needle shield and the catheter hub until the sharp end of the insertion needle locked in the needle shield in and prevents undesired insertion needle distal movement; FIG. 47 is a needle shield integral with a first embodiment of a clip of the locking member, a perspective partial sectional view of the proximal end portion of the insertion needle and catheter hub portion, the locking member connecting clip needle guard and the catheter hub until the needle is inserted sharp tip locking 罩里且阻止插入器针的不希望的远侧运动,导管套节带有插入器针的锋利的末端从针罩的末端延伸出去且针罩连接到导管套节上;图48是带有一体夹子锁定件的第一实施例的针罩、插入器针的远端部分和导管套节的近端部分的立体的局部剖视图,夹子锁定件连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩里且阻止插入器针的不希望的远侧运动,导管套节带有的插入器针的锋利的末端锁定在针罩内且针罩与导管套节脱开;图49是图46至48所示的一体夹子锁定件的第一实施例的立体图,夹子锁定件连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩里且阻止插入器针的不希望的远侧运动;图50是带有一横向阻挡件的弹簧夹子的第三实施例的立体图,弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩里;图51是带 The cover is inserted in the needle and prevents unwanted distal movement, sharp end of the catheter hub with the needle inserted from the tip of the needle extending out of the cover and the needle shield is connected to the catheter hub; FIG. 48 is integral with the first embodiment of the needle shield locking clip member, a perspective partial sectional view of the distal end portion and a proximal portion of the catheter insertion needle hub and a clip member connected to the needle shield locking and catheter hub until the needle is inserted into the sharp locking needle shield in the end where the insertion needle and prevents unwanted movement of the distal, sharp tip of the needle is inserted into the catheter hub with needle shield is locked in the needle shield and the catheter hub is disengaged; FIG. 49 46 to 48 are shown in FIG integrally clamp a perspective view of a first embodiment of the locking member, the locking member connecting clip needle guard and the catheter hub until the sharp end of the needle inserted in the needle shield in the locked and prevents insertion of the needle unwanted distal movement; FIG. 50 is a perspective view of a third embodiment of a spring clip with a transverse blocking member and spring clip connecting needle shield and the catheter hub until the sharp end of the needle is inserted in the lock in the needle shield; FIG 51 is a belt 一横向阻挡件的弹簧夹子的第四实施例、插入器针的一部分、系链的一部分和导管套节的近端部分的立体局部剖视图,弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩里,导管套节带有的插入器针的锋利的末端从针罩的远端延伸,且针罩连接到导管套节,一互锁定件的第一实施例阻止横向阻挡件的失效;图52是带有一横向阻挡件的弹簧夹子的第四实施例的针罩、插入器针的远端部分、系链的远端部分和导管套节的近端部分的立体局部剖视图,弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩里,导管套节带有的插入器针的锋利的末端锁定在针罩内,且针罩脱离导管套节,一互锁定件的第一实施例阻止横向阻挡件的失效;图53是带有一横向阻挡件的弹簧夹子的第四实施例的立体图,弹簧夹子用于图51和52所示 The fourth embodiment, a portion of the needle is inserted, a portion of perspective and partial sectional view of the proximal end portion of the catheter hub of the tether, a transverse spring clip spring clip member connected to a needle blocking shield and the catheter hub until the needle is inserted the sharp end of the needle shield is locked in, the sharp tip of the needle is inserted into the catheter hub with the needle extending from the distal end of the shield, and the needle shield is connected to the catheter hub, a first embodiment of a mutual locking of the blocking member failure transverse obstruction member; a fourth embodiment of the needle shield 52 is a spring clip with a transverse blocking member, the distal portion of the insertion needle, the distal end portion and a perspective view of the catheter hub proximal end portion of the tether a partial cross-sectional view of the spring clip connector needle hub and catheter hub until the sharp end of the insertion needle locked in the needle shield, the sharp end of the insertion needle catheter hub with a lock in the needle shield and the needle shield remover catheter hub, a first embodiment of a mutual locking member to prevent failure of lateral barrier; FIG. 53 is a perspective view of a fourth embodiment of a spring clip with a transverse blocking element, and a spring clip 52 shown in FIGS. 51 and 针罩,以连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩内且一互锁定件的第一实施例阻止横向阻挡件的失效;图54是带有一体夹子锁定件的第一实施例的针罩、插入器针的一部分和导管套节的近端部分的立体局部剖视图,夹子锁定件连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩里且阻止插入器针的不希望的远侧运动,导管套节带有的插入器针的锋利的末端从针罩的远端延伸出去,且针罩连接到导管套节,以及一将弹簧夹子从导管套节上脱开的系上链子的触发器的第一实施例;图55是带有一体夹子锁定件的第二实施例的针罩、插入器针的一部分和导管套节的近端部分的立体局部剖视图,夹子锁定件连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩里且阻止插入器针的不希望的远侧运动,导管套节带有的插入 Needle shield, to connect the catheter hub and the needle shield until the sharp end of the needle is inserted in a first embodiment of a mutual locking the needle shield and the locking member to prevent failure of lateral barrier; FIG. 54 is integral with the locking clip needle shield member of the first embodiment, a perspective partial sectional view of a portion of the proximal portion of the catheter hub and the needle is inserted, the locking member connecting clip needle guard and the catheter hub until the needle is inserted into the sharp tip of the locking pin the cover is inserted in the needle and prevents unwanted movement of the distal, sharp tip of the needle is inserted into the catheter hub with the needle extending from the distal end of the cover out, and the needle shroud is connected to the catheter hub, and a spring flip-flop of the first embodiment of the clip disengaged from the catheter hub based on the chain; FIG. 55 is a second embodiment of the needle shield integrally with the locking member of the clip, and a portion of the catheter near the insertion needle hub is a perspective partial sectional view of an end portion of the locking member connecting clip needle guard and the catheter hub until the sharp end of the needle inserted in the needle shield in the locked and prevents unwanted distal movement of the insertion needle, with the catheter hub insert 针的锋利的末端从针罩的远端延伸出去,且针罩连接到导管套节;图56是带有一体夹子锁定件的第二实施例插入器针的远端部分和导管套节的近端部分的立体局部剖视图,夹子锁定件连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩里且阻止插入器针的不希望的远侧运动,导管套节带有的插入器针的锋利的末端锁定在针罩内且针罩与导管套节脱开;图57是图55和56所示的一体夹子锁定件的第二实施例的立体图,该锁定件连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩内并阻止插入器针的不希望的远侧运动;图58是带有一横向阻挡件的弹簧夹子的第五实施例的针罩、插入器针的一部分、系链的一部分和导管套节的近端部分的立体局部剖视图,弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩内,导管套节带 Sharp tip of the needle extends out from the distal end of the needle shield and the needle shield is connected to the catheter hub; FIG. 56 is a catheter having proximal and distal hub portion and a second embodiment of the locking member is integrally inserted into the clip of the needle a perspective partial sectional view of an end portion of the locking member connecting clip needle guard and the catheter hub until the sharp end of the needle inserted in the needle shield in the locked and prevents unwanted distal movement of the insertion needle, with the catheter hub inserting a sharp needle tip is locked in the needle shield and the needle shield and the catheter hub is disengaged; FIG. 57 is a perspective view of a second embodiment of an integral clip 56 shown in FIG. 55 and the locking member, the locking member connected to the needle shield and the catheter hub until the needle is inserted into the sharp tip of the needle shield is locked in the inserted needle and prevent unwanted distal movement; FIG. 58 is a fifth embodiment of a transverse member of the spring clip with a blocking needle shield , a portion of the inserter needle portion and a partial perspective sectional view of the proximal end portion of the catheter hub of the tether, spring clip connector needle hub and catheter hub until the sharp end of the insertion needle locked in the needle shield, the catheter hub section with 的插入器针的锋利的末端从针罩的远端延伸,且针罩连接到导管套节;图59是带有一横向阻挡件的弹簧夹子的第六实施例的针罩、插入器针的一部分、系链的一部分和导管套节的近端部分的立体局部剖视图,弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩内,导管套节带有的插入器针的锋利的末端从针罩的远端延伸,且针罩连接到导管套节;图60是带有一横向阻挡件的弹簧夹子的第六实施例的针罩、插入器针的远端部分、系链的远端部分和导管套节的近端部分的立体局部剖视图,弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端锁定在针罩内,导管套节带有的插入器针的锋利的末端锁定在针罩内,且针罩与导管套节脱开;图61是图59和60所示的带有一横向阻挡件的弹簧夹子的第六实施例的立体图,弹簧夹子连接针罩和 The sharp end of the insertion needle extending from the distal end of the needle shield and the needle shield is connected to the catheter hub; FIG. 59 is a sixth embodiment of the needle shield having a transverse barrier is a spring clip, the insertion portion of the needle , and part perspective partial sectional view of the proximal end portion of the catheter hub of the tether, and a spring clip connecting needle shield catheter hub until the needle is inserted into the sharp tip of the needle shield in a locked, with the insertion of the catheter hub sharp tip of the needle extending from the distal end of the needle shield and the needle shield is connected to the catheter hub; FIG. 60 is a sixth embodiment of the needle shield having a transverse barrier is a spring clip, the distal end portion of the insertion needle, section and perspective partial sectional view of the proximal portion of the distal end of the catheter hub tether, spring clip needle guard and the catheter connector hub, until the sharp tip of the insertion needle locked in the needle shield, with the insertion of the catheter hub sharp end of the needle locked in the needle shield, the needle shield and the catheter hub is disengaged; a perspective view of a sixth embodiment of FIG. 61 is shown in FIGS. 59 and 60 with a transverse blocking member of the spring clip, spring clip connecting needle shield and 管套节,直到插入器针的锋利的末端锁定在针罩内;图62是夹子臂一部分的示意图,示出针罩和导管套节之间的接合机构的一替代的实施例;图63是夹子臂一部分的示意图,示出针罩和导管套节之间的接合机构的另一替代的实施例;图64是偏置臂一部分的立体图,示出针和偏置臂之间的接合机构的一替代的实施例;图65是偏置臂一部分的立体图,示出针和偏置臂之间的接合机构的另一替代的实施例;图66是一体导管、插入器针和带有锁定件的第十一实施例和弹簧夹子的第二实施例的针罩的分立的立体图,该锁定件阻止插入器针的不希望的远侧运动,该弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端被保护在针罩内;图67是带有锁定件的第十一实施例和弹簧夹子的第二实施例的针罩、插入器针的一部分和导管套节的近端部分的立体局部剖视 Tube hub until the sharp end of the needle inserted in the needle shield is locked; FIG. 62 is a schematic view of a portion of the clip arm, illustrating an alternative means of engagement between the needle hub and catheter hub embodiment; FIG. 63 is schematic of a portion of the clip arm, illustrating another engagement mechanism between the needle shield and the catheter hub alternative embodiment; FIG. 64 is a perspective view of a portion of the biasing arms, illustrating the engagement between the needle and the biasing mechanism arm an alternative embodiment; FIG. 65 is a perspective view of a portion of the biasing arms, showing another engagement mechanism between the needle and the biasing arms alternative embodiment; FIG. 66 is integrally catheter insertion needle and with a locking member perspective view of a separate needle shield eleventh embodiment of the second embodiment and the embodiment of the spring clip, the locking member does not want to prevent distal movement of the needle is inserted, the spring clip needle guard and the catheter connector hub, until the insertion sharp end of the needle is protected inside the needle shield; FIG. 67 is a second embodiment of the needle shield with an eleventh embodiment of the locking member and the spring clip, the catheter hub proximal end portion of the inserter needle a perspective partial sectional view of portion ,该锁定件阻止插入器针的不希望的远侧运动,该弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端被保护在针罩内,该导管套节带有的插入器针的锋利的末端从针罩的远端延伸,且针罩连接到导管套节;图68是带有锁定件的第十一实施例和弹簧夹子的第二实施例的针罩、插入器针的远端部分和导管套节的近端部分的立体局部剖视图,该锁定件阻止插入器针的不希望的远侧运动,该弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端被保护在针罩内,该导管套节带有的插入器针的锋利的末端锁定在针罩内,且针罩与导管套节脱开;图69是图66至68所示的弹簧夹子的第二实施例的立体图,弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端被保护在针罩内;图70是一体的导管、插入器针和带有横向阻挡件的弹簧夹子第七实施例的 The locking member prevents unwanted distal movement of the needle is inserted, the spring clip needle guard and the catheter connector hub, until the sharp tip is inserted into the insertion needle is protected inside the needle hub, the catheter hub with the sharp end of the needle extending from the distal end of the needle shield and the needle shield is connected to the catheter hub; FIG. 68 is a second embodiment of the needle shield with an eleventh embodiment of the locking member and the spring clip, the inserter a distal portion and a perspective partial sectional view of the proximal end portion of the catheter hub of the needle, the locking prevents unwanted distal movement of the needle member is inserted, the spring clip needle hub and connected to the catheter hub until the needle is inserted into the sharp the tip is protected within the needle shield, sharp needle tip is inserted into the catheter hub with the needle shield in a locked, needle shield and the catheter hub is disengaged; FIG. 69 is shown in FIGS. 66 to 68 of the spring a perspective view of a second embodiment of the clip, spring clip needle hub and connected to the catheter hub until the sharp end of the insertion needle is protected inside the needle shield; FIG. 70 is integral with the catheter, with the insertion needle and the transverse obstruction the seventh embodiment of the spring clip 罩的分立的立体图,弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端被保护在针罩和系链内;图71是带有一横向阻挡件的弹簧夹子的第七实施例的针罩、插入器针的一部分、系链和导管套节的近端部分的立体局部剖视图,弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端被保护在针罩内,导管套节带有的插入器针的锋利的末端从针罩的远端延伸,且针罩连接到导管套节;图72是带有一横向阻挡件的弹簧夹子的第七实施例的针罩、插入器针的远端部分、系链的远端部分和导管套节的近端部分的立体局部剖视图,弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端被保护在针罩内,导管套节带有的插入器针的锋利的末端锁定在针罩内且针罩与导管套节脱离;图73是带有如图70至72所示的横向阻挡件的弹簧夹子的第七实施例的立 A perspective view of a separate cover, spring clip connector needle hub and catheter hub until the sharp end of the insertion needle is protected inside the needle shield and tether; FIG. 71 is a seventh embodiment of a transverse spring clip blocking member having the needle shield, a portion of the insertion needle, the tether and a perspective partial sectional view of the proximal portion of the catheter hub, the spring clip connector needle hub and catheter hub until the sharp end of the insertion needle is protected inside the needle shield, sharp needle tip is inserted into the catheter hub with the needle extending from the distal end of the shield, and the needle shield is connected to the catheter hub; FIG. 72 is a seventh embodiment of the needle shield having a transverse barrier is a spring clip, the distal end portion of the insertion needle, a perspective partial sectional view of the distal end portion and a proximal portion of the catheter hub of the tether, and a spring clip connecting needle shield catheter hub until the sharp end of the needle is inserted in a protective needle shield the sharp end of the needle is inserted into a catheter hub with needle shield is locked in the needle shield and the catheter from the hub; FIG. 73 is a spring clip with a transverse blocking member shown in FIG seventh 70-72 legislation embodiment 图,弹簧夹子连接针罩和导管套节;图74是带有一横向阻挡件的弹簧夹子的第八实施例的针罩、插入器针的远端部分和导管套节的近端部分的局部横截面图,弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端被保护在针罩内,导管套节带有的插入器针的锋利的末端从针罩的远端延伸,且针罩连接于导管套节;图75是带有一横向阻挡件的弹簧夹子的第八实施例的针罩、插入器针的远端部分和导管套节的近端部分的局部横截面图,弹簧夹子连接针罩和导管套节,直到插入器针的锋利的末端被保护在针罩内,导管套节带有的插入器针的锋利的末端锁定在针罩内,且针罩与导管套节脱开;图76是带有锁定件第七实施例的修改型的针罩和插入器针的远端部分的立体局部剖视图,锁定件阻止插入器针的不希望的远侧运动,插入器针的锋利的末端从针罩的 FIG, spring clip needle hub and connected to the catheter hub; FIG. 74 is a eighth embodiment of the needle shield having a transverse barrier is a spring clip, in partial cross section of a proximal portion and a distal end of the catheter insertion needle hub is sectional view, connected to the spring clip needle guard and the catheter hub until the sharp end of the insertion needle is protected inside the needle shield, sharp needle tip is inserted into the catheter hub with the needle extending from the distal end of the shield, and needle shield is connected to the catheter hub; FIG. 75 is a eighth embodiment of the needle shield having a transverse barrier is a spring clip, a partial cross-sectional view of the distal end portion and a proximal portion of the catheter is inserted into the needle hub, the spring the clip connecting needle shield and the catheter hub until the sharp end of the insertion needle is protected inside the needle shield, sharp needle tip is inserted into the catheter hub with needle shield is locked in, the needle shield and the catheter hub disengagement; unwanted distal movement of FIG. 76 is a partial perspective sectional view of the locking member seventh modification example of the embodiment of the needle shield and the distal portion of the insertion needle with the locking member to prevent the insertion needle, the insertion needle the sharp end of the needle shield from 远端延伸,其中针罩具有一夹子,它连接针罩和导管套节,直到插入器针的锋利的末端被保护在针罩内;以及图77是带有锁定件第七实施例的修改型的针罩和插入器针的远端部分的立体局部剖视图,锁定件阻止插入器针的不希望的远侧运动,插入器针的锋利的末端锁定在针罩内,其中针罩具有一夹子,它连接针罩和导管套节,直到插入器针的锋利的末端被保护在针罩内。 Extending the distal end, wherein the needle shield has a clamp, which connects the needle guard and the catheter hub until the sharp end of the insertion needle is protected inside the needle shield; and a modified type of the seventh embodiment with the locking member 77 is a perspective partial sectional view of the needle shield and the distal portion of the needle is inserted, the locking member to prevent unwanted distal movement of the insertion needle, the insertion needle sharp tip is locked in the needle shield, wherein the needle shield having a clip, it is connected to the catheter hub and the needle shield until the sharp end of the insertion needle is protected inside the needle shield.

具体实施方式 Detailed ways

这里所用的术语“近端的”指的是本发明的带有针罩的导管和插管器针的组件上的一个位置,在正常使用时,这个位置最靠近使用该装置的临床医生且最远离该装置使用对象的病人。 As used herein, the term "proximal" refers to a location on the catheter and introducer needle assembly with needle shield of the present invention, in normal use, the position closest to the clinician using the device and most of the away from the patient using the device object. 相反,术语“远端的”指的是本发明的导管和插管器针的组件上的一个位置,在正常使用时,这个位置最远离使用该装置的临床医生且最靠近该装置使用对象的病人。 Conversely, the term "distal" refers to a location on the catheter and introducer needle assembly of the present invention, in normal use, the position farthest from the clinician using the device and closest to the object of use of the apparatus patient.

这里所用的术语“顶”、“上”或“向上地”指的是是本发明的带有针罩的导管和插管器针的组件上的一个位置,在正常使用时,这个位置径向背离该装置的纵向轴线且背离病人的皮肤。 , "Upper" as used herein, the term "top" or "upwardly" refers to a location on the catheter and introducer needle assembly with needle shield of the present invention, in normal use, the radial position away from the longitudinal axis of the device and away from the patient's skin. 相反,这里所用的术语“底”,“下”或“向下地”指的是本发明的带有针罩的导管和插管器针的组件上的一个位置,在正常使用时,这个位置径向背离该装置的纵向轴线且朝向病人的皮肤。 In contrast, as used herein, the term "bottom", "lower" or "downwardly" refers to a location on the catheter and introducer needle assembly with needle shield of the present invention, in normal use, the position of the diameter away from the longitudinal axis of the device and toward the patient's skin.

这里所用的术语“内”或“向内地”指的是本发明的带有针罩的导管和插管器针的组件上的一个位置,在正常使用时,这个位置朝向该装置的里面。 As used herein the term "inner" or "inwardly" refers to a location on the catheter and introducer needle assembly with needle shield of the present invention, in normal use, the position toward the inside of the apparatus. 相反,这里所用的术语“外”或“向外地”指的是本发明的带有针罩的导管和插管器针的组件上的一个位置,在正常使用时,这个位置朝向该装置的外面。 In contrast, as used herein, the term "outer" or "outwardly" refers to a location on the catheter and introducer needle assembly with needle shield of the present invention, in normal use, the position toward the outside of the device .

在此,本发明的描述对不同实施例中的相同元件采用相同的标号。 Here, description of the present invention employs the same reference numerals to the same elements in the different embodiments. 尽管本发明这里是关于一典型的外围的IV导管以及一带有一体的延伸管(“一体式导管”)的外围的IV导管进行描述,但应理解本发明还适用于其它的导管。 Although the invention herein is the peripheral IV catheter on a typical peripheral IV catheter and a extension tube with an integral ( "integrated catheter") will be described, it is to be understood that the present invention is also applicable to other catheters. 例如,本发明适用于延伸的留置导管,这种导管要求通过管心针将针连接到针套节上,以及适用于要求针在用后保护起来的其它医用器械。 For example, the present invention is applicable to extending the indwelling catheter, connected through such a catheter requires stylet needle to the needle hub, as well as other applications that require a needle after use in a medical device is protected. 此外,尽管本发明通过许多不同形式的实施例达到其说明的目的,但在附图中和在此的详细描述中,仅显示了本发明的若干优选实施例,它们均在由附后的权利要求所限定的本发明的范围之内。 Furthermore, although the present invention through examples of many different forms to achieve its purpose of illustration, in the drawings and the detailed description herein, only show several preferred embodiments of the present invention, which were claimed by the appended within the scope of the invention as defined by the claims.

本发明的导管和插管器针的组件一般以标号10来标识并规定一通过组件的延伸的纵向轴线。 The catheter and introducer needle assembly of the present invention is generally identified by reference numeral 10 and a predetermined longitudinal axis extending through the assembly. 参见图1,它包括一导管组件20和一包括一针罩40的插管器针组件30。 Referring to Figure 1, a catheter assembly comprising a cannula 20 and a needle assembly comprising a needle cover 40 30. 参见图2,导管组件20可包括一个一体延伸的导管25。 Referring to Figure 2, the catheter assembly 20 may include a conduit 25 extending integrally. 这样的一体的导管在US5,697,914中有一般性的叙述。 Such integral conduit having in general is described in US5,697,914. 如上所述,应该理解本发明的针罩40可用于这样的一体的导管。 As described above, it should be understood that the present invention cover the needle 40 may be used one such conduit.

导管组件20包括一导管21,它具有一近端,一远端和一固定在导管近端的导管套节24。 The catheter assembly 20 includes a catheter 21 having a proximal end, a distal end and a proximal end fixed to the catheter hub 24 of the catheter. 用于导管21合适的材料包括(但不限于)诸如氟化乙丙烯(FEP),聚四氟乙烯(PTFE),聚氨酯之类的热塑性树脂。 Suitable materials for catheter 21 include (but are not limited to) such as fluorinated ethylene propylene (FEP), polytetrafluoroethylene (PTFE), thermoplastic polyurethane resin or the like. 较佳地,导管21由一种热塑的亲水性聚氨酯组成,它暴露在病人体内的生理条件下会软化。 Preferably, the catheter 21 is a thermoplastic hydrophilic polyurethane composition, it is exposed will soften under physiological conditions in a patient. 适用于导管套节24的材料包括(但不限于)诸如聚碳酸酯,聚苯乙烯,聚丙烯之类的热塑性聚合物树脂。 Suitable materials for catheter hub 24 include (but are not limited to) such as polycarbonate, polystyrene, thermoplastic polymer resin such as polypropylene or the like. 导管套节24可包括一径向向外延伸的接片,它可用于将导管21推进病人的血管。 Catheter hub 24 may include a tab extending radially outwardly, the catheter 21 which can be used to promote blood vessel of the patient.

插管器针组件30包括插管器针31,它具有形成有一斜面的锋利的末端32和一连接于针套节34的近端。 A cannula needle assembly 30 includes introducer needle 31 having a proximal end formed with a beveled sharp tip 32 and a connection 34 to the needle hub. 插管器针31最好由不锈钢制成,且其纵向轴线基本上平行于导管和插管器针的组件10的纵向轴线。 Needle cannula 31 is preferably made of stainless steel and having a longitudinal axis substantially parallel to the longitudinal axis of the catheter and introducer needle assembly 10. 针套节34可包括一具有一敞开近端的一体的反光腔。 Needle hub 34 may include a proximal end having an opening integrally reflective cavity. 针套节34可由用来形成导管套节24的同样类型的材料组成。 Needle hub 34 may be the same type of material as the catheter hub 24 is used to form the composition. 当然,其它材料也可用来形成针套节34。 Of course, other materials may also be used to form needle hub 34. 较佳地,敞开的近端通过一排气柱塞36来堵塞液体流,该排气柱塞允许空气但不允许液体流过。 Preferably, the open proximal end of the plunger 36 through an exhaust to plug the liquid flow, which allows the plunger exhaust air to flow through but not the liquid.

插管器针组件30还包括针罩40,它包括在其内部形成一内部腔室42的外壳41。 Needle cannula 30 further includes a needle shield assembly 40, which comprises forming an internal chamber 42 of the housing 41 in its interior. 外壳41还形成一近端开口43和一内部腔室42连通的远端开口45。 The housing 41 also forms a proximal end and a distal opening 43 communicating with a chamber 42 inside the opening 45. 这使插管器针31可纵向延伸通过外壳41。 This allows the needle cannula 31 may extend longitudinally through the housing 41. 腔室42,近端开口43和远端开口45的直径至少略大于插管器针31的主要部分的直径。 Chamber 42, a proximal opening 43 and distal opening 45 is slightly larger than the diameter of diameter of at least a main portion of introducer needle 31. 这使插管器针31容易地通过针罩40。 This allows introducer needle 31 through needle cover 40 easily. 较佳地,腔室42和远端开口45至少略大于形成在插管器针31上的任何不连续部分,其将在下文中予以描述。 Preferably, the chamber 42 and a distal opening 45 at least on any discontinuous portions 31 is slightly larger than the cannula needle is formed, which will be described hereinafter. 这允许插管器针31的远端部分撤回进外壳41内,但阻止插管器针31从针罩40近侧向地撤回,这将在下文中予以描述。 This allows the distal portion of the needle cannula 31 withdrawn into the housing 41, but prevents the needle cannula 31 is withdrawn from the radially proximal needle shield 40, as will be described hereinafter.

如下文所要叙述的,在未使用本发明的弹簧夹子处,外壳41可包括一径向延伸的突缘46和多个纵向延伸的指形物47。 As hereinafter to be described, the spring clips are not used in the sub of the present invention, the housing 41 may include a radially extending flange 46 and a plurality of fingers 47 extending longitudinally. 指形物47可包括径向向内指向的突出48。 Fingers 47 may include a radially inwardly directed projections 48. 指形物47和突出48接合导管套节24,以将插管器针组件30和导管组件20保持在一起。 Projecting fingers 47 and 48 engage catheter hub 24 to the needle cannula assembly 30 and catheter assembly 20 are held together. 通常,导管套节24包括一在其近端的径向突起的线状物或耳44,以便于和其它装置的连接。 Typically, catheter 24 comprises a hub at its proximal end a radially projecting lug 44 or a thread, for connection to other devices. 这提供了用于与指形物47和突出48相结合的导管套节24的一部分,这样,导管套节24和插管器针组件30仍然保持连接,直到插管器针31从导管组件20中移去且由针罩40所保护。 This provides for a portion of the projecting fingers 47 and catheter hub 48 combination 24, so that catheter hub 24 and needle cannula assembly 30 remains connected until the introducer needle 31 from catheter assembly 20 remove and protected by the needle shield 40.

插管器针31包括沿其远端部分的、形成在其上的不连续部分。 31 includes a needle cannula in its distal end portion, the discontinuous portion formed thereon. 该不连续部分可呈多种形式。 The discontinuity may be in a variety of forms. 例如,它可以是一直径放大的部分38(见图3A,3B,3C和3G),或一凹槽39(见图3D和3G),或一直径放大的部分38和一凹槽39的组合(见图3E,3F和3G)。 For example, it may be an enlarged diameter portion 38 (see FIGS. 3A, 3B, 3C and 3G), or (see FIG. 3D and 3G), or a combination of a recess 39 having a diameter enlarged portion 38 and a recess 39 (see FIG. 3E, 3F, and 3G). 对于不连续部分38是一直径放大的部分的情形,近端部分38a可为渐缩的,而远端部分38b可为面向远侧的台肩,它的取向大致垂直于插管器针31的纵向轴线(见图3A)。 For the case of a discontinuous portion 38 is a diameter of the enlarged portion, the proximal portion 38a may be tapered and the distal portion 38b can distally facing shoulder, its orientation substantially perpendicular to the needle 31 of the cannula longitudinal axis (see FIG. 3A). 或者,例如见图3C,远端部分38b可为渐缩的。 Alternatively, for example see FIG. 3C, the distal end portion 38b may be tapered. 这种逐渐缩小可以差不多是介于几乎平行于和几乎垂直于插管器针的纵向轴线之间任何角度。 Such tapering may be almost parallel to and between nearly any angle between almost perpendicular to the longitudinal axis of the needle cannula. 较佳地,如图3A,3C,3F和3G所示的直径放大部分38是通过无中心研磨一较大直径的插管器针而在插管器针31上形成。 Preferably, as shown in FIG 3A, 3C, 3F, and 3G shown in an enlarged diameter portion 38 is formed on introducer needle 31 by centerless grinding a cannula needle of a larger diameter. 尽管直径放大部分38在诸图中表示为绕插管器针31的轴周向设置,但应理解,直径放大部分38可以绕插管器针31的轴非对称地形成。 Although the diameter of the enlarged portion 38 is represented as about needle cannula shaft circumferentially disposed, it is to be understood that the 31, an enlarged diameter portion 31 of the shaft 38 may be formed asymmetrically about the introducer needle in the various figures. 例如,直径放大部分可以形成如一在插管器针31上的压扁的部分(见图3B和3E)。 For example, an enlarged diameter portion may be formed on the cannula such as a needle portion 31 of the flattened (see FIG. 3B and 3E). 为了避免疑义,这里所用的术语“直径”指的是通过一物体中心的一直线的长度。 For avoidance of doubt, as used herein, the term "diameter" refers to the length of the central body by a straight line.

对用于插管器针31的不连续部分是直径放大部分38的情形,不管用于直径放大部分是何种特殊结构,该部分应具有的直径大于近端开口43的直径。 A discontinuity on the needle cannula 31 is an enlarged diameter portion 38 of the case, regardless of the diameter of the enlarged portion for what special structure, this portion should have a larger diameter than the proximal opening 43. 这提供了一种机构来确保插管器针31不能沿一近侧的方向完全拉出针罩40之外。 This provides a mechanism to ensure that the introducer needle 31 can not move in a proximal direction completely out of needle shield 40 outside. 这是因为直径放大部分38阻塞了插管器针31通过近端开口43的进一步的朝向近侧的运动。 This is because the diameter of the enlarged portion 38 blocks the movement of introducer needle 31 through further proximally toward the proximal opening 43. 或者,将一具有一开口的垫圈49放入腔室42,并邻接腔室42的近侧壁,该开口的直径略大于插管器针31的主体部分的直径,但小于直径放大部分38的直径。 Alternatively, a washer having an opening 49 into the chamber 42, and adjacent to the proximal wall 42 of the chamber, slightly larger than the diameter of the opening diameter of the body portion 31 of the needle cannula, but less than the diameter of the enlarged portion 38 of diameter. 在这位置,垫圈49的开口与近端开口43对齐。 In this position, the opening and the proximal end opening 43 of the washer 49 is aligned. 因此垫圈49能阻止直径放大部分38通过近端开口43。 Thus the gasket 49 prevents enlarged diameter portion 38 through the proximal opening 43.

或者,如果凹槽39用作不连续部分或如果无不连续部分用于插管器针上,一系链50可用来连接针罩40和针套节34(例如见图42)。 Alternatively, if the groove 39 as the discontinuous portion of the cannula or needle, a tether 50 may be used to connect needle hub 40 and needle hub 34 if all for a continuous portion (e.g., see FIG. 42). 系链50必须构造成它的有效长度不会使锋利的末端32近侧向地完全拉出针罩40。 The tether 50 must be configured such that it does not make the effective length of the sharp tip 32 proximally completely out of needle shield 40 circumferentially.

直径放大部分38的直径最好比插管器针31的主体部分的外直径至少约大0.002英寸。 An enlarged diameter portion 38 is preferably at least about 0.002 inches large than the outer diameter of the body portion 31 of the needle cannula. 意想不到地发现,在本发明的范围内,这个尺寸足以在锋利的末端32近侧向地撤回进入针罩40之后,防止插管器针31的锋利的末端32向远侧移出针罩40。 Unexpectedly it has been found that, within the scope of the present invention, this size is sufficient to circumferentially sharp tip 32 proximally withdrawn into the needle shield 40, the sharp tip to prevent needle cannula 31 out of 32 of the needle shield 40 distally. 对直径放大部分38对称地设置在插管器针31轴的周围的情形,直径放大部分38的直径最好比插管器针31的主体部分的直径约大0.004英寸。 An enlarged diameter portion 38 in the case of symmetrically disposed around the needle cannula shaft 31, the diameter of enlarged diameter portion 38 is preferably about 0.004 inches large than the diameter of the body portion 31 of the needle cannula. 为了确保达到这个直径差,见图3A,使一退拨从远端部分38b朝向插入器针31的远端略微递增,可以形成插入器针31的那部分直接远端对远端部分38b。 To achieve this the diameter difference to ensure that, see FIG. 3A, so that a dial back slightly increases from the distal end portion of the distal end 38b toward the insertion needle 31, the insertion portion 31 of the needle distal end portion 38b to direct the distal end may be formed. 研磨插入器针31的那部分可形成直接远端对远端部分38b的该退拨。 Milling insert needle portion 31 may be formed directly on the distal end of the distal end portion 38b of the dial back.

一旦锋利的末端32近侧向地撤回进针罩40,锁定件可防止插入器针31的锋利的末端32跑出针罩40的远端的不希望的远侧运动,该锁定件可呈多种形式。 Once the sharp tip 32 proximally into needle shield 40 withdrawn radially, the end of the locking member prevents the sharp needle 31 is inserted into the undesired 32 ran distal movement of the distal end of the needle cover 40, the locking member may be in multiple forms. 这里所用的词语“插入器针31的不希望的远侧运动”指的是,在导管和插入器针的组件10的正常使用期间,以及正常情况下,例如在锁定件接合插入器针31之后,锋利的末端32不从针罩40的远端开口45中再次暴露出来的插入器针31的远侧运动。 Words used herein, "insertion needle undesired 31 distal movement" means that during normal use of the assembly of the catheter and insertion needle 10, and under normal circumstances, for example, after the locking member engaging the insertion needle 31 , sharp tip 32 is exposed again in 45 distal movement of needle 31 is not inserted into the opening 40 from the distal end of the needle shield.

如图4至7所示,锁定件可呈一弹簧闸100的形式,它可包括一分离的偏压机构150,以将插入器针31锁定在针罩40内。 As shown in FIG. 4 to 7, the locking member may be in the form of a spring brake 100, which may comprise a separate biasing mechanism 150, to insert the needle 31 is locked in the needle shield 40. 在该锁定件的实施例中,不连续部分最好是一直径放大部分38。 In an embodiment of the locking member, the discontinuity is preferably an enlarged diameter portion 38.

弹簧闸100和偏压机构150位于针罩40的外壳41的腔室42内并围绕插入器针31。 Spring brake housing 100 and biasing means 150 of the needle cover 40 in the cavity 41 around the insertion needle 42, and 31. 弹簧闸100具有一对分开的叉110,它们在基部120相连。 Spring brake 100 having a pair of spaced prongs 110, 120 are connected to the base portion. 叉110应形成至少其间具有一距离的一个部分,该距离略大于插入器针31主体的直径而小于直径放大部分38的直径。 Fork 110 should be formed at least one portion having a distance therebetween, which distance slightly greater than the diameter of the insertion needle body 31 and smaller than the diameter of the enlarged diameter portion 38. 这允许插入器针31的主体位于双叉110之间,并通过叉110近侧向地移动。 This allows the body of the inserter needle 31 positioned between the double fork 110 and fork 110 moves proximally through circumferentially. 基部120可大致垂直于叉110延伸,以提供更多的表面积接触偏压机构150,偏压机构将在下文描述。 Base 120 may extend substantially perpendicular to the fork 110 to provide more surface area contact with biasing mechanism 150, the biasing mechanism will be described below. 尽管弹簧闸100的面在图中显示为一般的U形,但应该理解只要该形状允许至少一个叉110接合直径放大部分38,其它形状也可用于弹簧闸100的面。 Although the spring brake surface 100 is shown as a generally U-shaped, it should be understood that as long as the shape allows at least a fork 110 engaging an enlarged diameter portion 38, other shapes can also be used for spring brake surface 100 in FIG. 例如,弹簧闸100的面可具有一V形或一L形。 For example, spring brake surface 100 may have a V-shape or an L-shaped.

偏压机构150迫使弹簧闸100向上接触插入器针31且确保叉110和基部120仍然靠近插入器针31。 The biasing mechanism 150 forcing the spring brake 100 contacts the inserter needle 31 upwardly and ensures that the fork 110 and the base 120 near the insertion needle 31 remains. 偏压机构150可采取任何合适的形式。 The biasing mechanism 150 may take any suitable form. 例如,它可以如图4至6所示的一螺旋弹簧,或者它可以是象橡胶那样的用作一弹簧的可压缩材料,或者它可以构造成一片簧。 For example, it may be a coil spring as shown in FIG. 4 to 6, or it may be used such as rubber spring of a compressible material, or it may be configured as a leaf spring. 此外,偏压机构150和叉110可以集成作为一个元件。 Further, the biasing mechanism 150 and the prongs 110 may be integrated as one element.

当插入器针31近侧向地撤回进针罩40时,插入器针31的主体通过双叉110之间。 31 when the insertion needle is withdrawn proximally into needle shield 40 radially, the body 31 is inserted through the needle 110 between the two-pronged. 当直径放大部分38邻接叉110时,弹簧闸100近侧向地转动且通过直径放大部分38的近侧运动向下压靠在偏压机构150上。 When the enlarged diameter portion 38 adjacent to the fork 110, spring brake 100 is rotated circumferentially and proximally by the proximal movement of enlarged diameter portion 38 downwardly against the bias mechanism 150. 这使直径放大部分38近侧向地通过叉110。 This allows the diameter of the radially enlarged portion 38 by the fork 110 proximally. 比较图4和图5。 Comparison of Figures 4 and 5. 一旦直径放大部分38在叉110的近侧,如图所示,偏压机构150压迫弹簧闸100顺时针方向转动,返回到与插入器针31接合。 Once enlarged diameter proximal portion 38 of the fork 110, as shown, the biasing mechanism 150 compression spring brake 100 in the clockwise direction, to return into engagement with the insertion needle 31. 当直径放大部分38位于叉110的近侧时,锋利的末端32则位于远端开口45的近侧。 When the diameter of the enlarged portion 38 is located proximal of the fork 110, the sharp tip 32 at the distal end 45 of the proximal opening. 见图6。 See Figure 6. 同样地,这里所公开的所有实施例构造成使锋利的末端32锁定在远端开口45的近侧的针罩40内。 Similarly, all of the embodiments disclosed herein are configured such that the sharp tip 32 at the distal opening of the proximal locking pin 45 of the cover 40.

插入器针31的其后的远侧运动受到接合的直径放大部分38和叉110的阻止。 The insertion needle 31 followed by distal movement by engaging an enlarged diameter portion 38 and prevents the fork 110. 由于叉110接合腔室42的远端壁,所以叉110不能远侧向地运动通过该远端壁。 Since the prong 110 engages the distal end of the chamber wall 42, so that the fork 110 can circumferentially distally through the distal end wall motion. 因此,如果一临床医生在直径放大部分38移到叉110的近侧之后试图向远端推进插入器针31,直径放大部分38将抵触叉110,叉110又顺次抵触腔室42的远端壁。 Thus, if a clinician then enlarged diameter proximal portion 38 of the fork 110 is moved distally advancing attempt inserter needle 31, an enlarged diameter portion 38 will conflict with the fork 110, the fork 110 in turn is in conflict with the distal end of chamber 42 wall. 偏压机构150确保叉110仍然接合在插入器针31上。 The biasing mechanism 150 to ensure that the fork 110 is still engaged in the insertion needle 31. 如上所述,由于直径放大部分38阻塞了插入器针31通过近端开口43或垫圈49的进一步的近侧运动,所以插入器针31离针罩40进一步向近侧的运动被阻止。 As described above, since the diameter of the enlarged portion 38 blocks the proximal end of the insertion needle 31 through the opening 43 or further proximal movement of the washer 49, the insertion needle 31 from needle shield 40 to prevent further proximal movement. 或者,一连接针罩40和针套节34的系链50可用来防止插入器针31跑出针罩40向近侧的不希望的运动。 Alternatively, a tether 40 connected to the needle shield and the needle hub 34 of the inserter 50 can be used to prevent the needle 31 ran needle shield 40 moves proximally undesirable.

阻止插入器针31的不希望的远侧运动的锁定件的第二实施例是一片簧200。 The second embodiment of the insertion needle 31 to prevent unwanted distal movement of the locking member 200 is a spring. 见图8至10,片簧200具有一近侧壁210,壁内形成有一开口215,开口与腔室42的近端开口43对齐。 Figure 8 to 10, the leaf spring 200 has a proximal wall 210, is formed with an opening 215, and proximal opening 43 of the chamber 42 is aligned with the wall opening. 近侧壁210基本垂直于插入器针31的纵向轴线。 Proximal wall 210 substantially perpendicular to the longitudinal axis of the insertion needle 31. 对直径放大部分38用于插入器针31的情形,开口215最好具有至少一直径略大于插入器针31的主体部分的直径,但小于直径放大部分38的直径。 An enlarged diameter portion 38 for the case where the insertion needle 31, the opening 215 preferably has a diameter at least slightly greater than the needle is inserted into the main body portion 31 having a diameter, but smaller than the diameter 38 of the enlarged diameter portion. 当然,只要近端开口43、垫圈49或系链50用来防止锋利的末端32跑出针罩40的近侧向的运动,对于片簧200来说,没有必要包括近侧壁210和开口215。 Of course, as long as the proximal opening 43, a gasket 49 or tether 50 to prevent lateral movement of the near end 32 of the sharp needle shield 40 ran, for the leaf spring 200, there is no need to include a proximal wall 210 and opening 215 .

片簧200还具有一支承腿220和一倾斜于支承腿220的锁定腿230,使锁定腿230大致朝向近侧壁210的方向,这样,锁定腿230较佳地不垂直于支承腿220。 The leaf spring 200 further includes a tilt support legs 220 and a support leg 220 of the locking leg 230, so that locking leg 230 substantially toward the proximal wall 210, so that locking leg 230 is preferably not perpendicular to the support leg 220. 较佳地,锁定腿230趋向于平行于支承腿220。 Preferably, the locking leg 230 tends to be parallel to the support leg 220. 如图8-10所示,支承腿220和锁定腿230较佳地互相相对,这样,片簧200具有一大致的V形,一边平躺,V形的顶端朝向远端。 8-10, the support legs 220 and the locking leg 230 is preferably opposed to each other, so that the leaf spring 200 having a substantially V-shaped, while flat, V-shaped tip toward the distal end. 这种V形的结构保证锁定腿230偏向插入器针31并倾斜于支承腿220。 This V-shaped configuration to ensure that locking leg 230 toward the insertion needle 31 and inclined to the support leg 220.

锁定腿230包括一对分开的叉240。 Locking leg 230 comprises a pair of spaced prongs 240. 沿双叉240的至少一部分,其间限定一距离,它略大于插入器针31的主体部分的直径且小于直径放大部分38的直径。 Double fork 240 along at least a portion, defining a distance therebetween, it is slightly larger than the diameter of the body portion of the insertion needle 31 and smaller than the diameter of the enlarged diameter portion 38. 这允许插入器针31的主体部分在双叉240之间延伸并近侧向地移动通过叉240。 This allows the needle is inserted into the body portion 31 extending between circumferentially bifurcated proximal 240 and moved by the fork 240. 在锁定腿230上的双叉240的取向最好呈现为大致的V形结构。 Orientation double fork leg 240 on the lock 230 preferably exhibits a substantially V-shaped configuration.

随着插入器针31近侧向地撤回进针罩40,插入器针31的主体部分通过双叉240之间。 With the needle 31 inserted radially withdrawn proximally into the needle shield body portion 40, the insertion needle 31 through 240. The two-pronged. 当直径放大部分38邻接双叉240,如图所示,它们逆时针方向转动。 When the diameter of the enlarged portion 38 adjacent to the double fork 240, as shown, is rotated counterclockwise thereof. 这允许直径放大部分38近侧向地移动通过双叉240。 This allows the diameter of the radially enlarged portion 38 moves proximally through the double fork 240. 一旦直径放大部分38位于双叉240的近侧,如图所示,片簧200的偏压使锁定腿230和双叉240顺时针方向转动,返回到与插入器针31的接合。 Once enlarged diameter portion 38 is located proximal bifurcating 240, as shown, leaf springs 200 bias to the bifurcated locking legs 230 and 240 in a clockwise direction, to return into engagement with the insertion needle 31. 如果插入器针31接着向远侧移动,如图所示,锁定腿230和双叉240将继续顺时针方向转动。 If the insertion needle 31 is then moved distally, as illustrated, bifurcated locking legs 230 and 240 will continue to rotate clockwise. 这迫使插入器针31向上与形成针罩40的腔室42的壁紧密接合。 This forces the needle 31 is inserted upwardly in close contact with the needle shield is formed of a wall 42 of the chamber 40. 从而防止锋利的末端32再次裸露。 Thereby preventing the sharp tip 32 exposed again. 插入器针31其后的任何向远侧运动都受到阻止,如果足够的向远侧的力施加在插入器针31上,则如图9所示,远侧运动可造成插入器针31的屈曲并且永久地将插入器针31锁定在针罩40内。 The insertion needle 31 to any subsequent distal movement have been prevented if a sufficient distal force is applied in the insertion needle 31, is shown in Figure 9, the distal movement can cause buckling of the insertion needle 31 and the insertion needle 31 is permanently locked in the needle shield 40.

通过直径放大部分38和近侧壁210的接合,插入器针31的进一步的近侧向运动受到阻止。 By engaging portion 38 and enlarged diameter proximal wall 210, further insertion needle 31 near the lateral movement is prevented. 再者,如有要求的话,可使用连接针罩40与针套节34的一系链50,来阻止这种插入器针31相对于针罩40的不希望的近侧的移动。 Further, if desired, using a tether connecting needle shield 40 with the hub 34 of the needle 50, to prevent such insertion needle 31 moves with respect to undesirable needle cover 40 proximally.

阻止插入器针31的不希望的远侧运动的锁定件的第三实施例是一片簧300。 The third embodiment of the insertion needle 31 to prevent unwanted distal movement of the locking member 300 is a spring. 见图11至13,片簧300具有一近侧壁310,壁内形成有一开口315,开口与腔室42的近端开口43对齐。 Figure 11 to 13, the leaf spring 300 has a proximal wall 310, the inner wall is formed with an opening 315, proximal opening 42 of the chamber opening 43 is aligned. 近侧壁310基本垂直于针罩40的纵向轴线。 Proximal wall 310 substantially perpendicular to the longitudinal axis 40 of the needle shield. 对直径放大部分38用于插入器针31的情形,开口315最好具有一直径略大于插入器针31的主体部分的直径,但小于直径放大部分38的直径。 An enlarged diameter portion 38 for the case where the insertion needle 31, the opening 315 preferably has a diameter slightly larger than the diameter of the insertion needle 31 of the body portion, but smaller than the diameter 38 of the enlarged diameter portion. 当然,只要近端开口43,垫圈49或系链50用来防止锋利的末端32跑出针罩40的近侧向的运动,对于片簧300来说,没有必要包括近侧壁310和开口315。 Of course, as long as the proximal opening 43, a gasket 49 or tether 50 to prevent lateral movement of the near end 32 of the sharp needle shield 40 ran, for the leaf spring 300, there is no need to include a proximal wall 310 and the opening 315 .

片簧300还具有一支承腿320和一倾斜于支承腿320的锁定腿330,以使锁定腿330大致朝向近侧壁310的方向且不垂直于支承腿320。 The leaf spring 300 further includes a support leg 320 and an inclined locking legs 330 to support leg 320, so that the locking leg 330 substantially toward the proximal wall 310 is not perpendicular to the support leg 320. 较佳地,锁定腿330趋向于平行于支承腿320。 Preferably, the locking leg 330 tends to be parallel to the support leg 320. 如图11所示,支承腿320和锁定腿330较佳地互相相对,这样,片簧300具有一大致的V形,一边平躺,V形的顶端朝向远端。 11, the support leg 320 and a locking leg 330 is preferably opposed to each other, so that the leaf spring 300 having a substantially V-shaped, while flat, V-shaped tip toward the distal end. 这种V形的结构保证锁定腿330偏向插入器针31或者锁定腿330可以不同的角度倾斜于支承腿320。 This V-shaped configuration to ensure that the locking legs 330 can be inserted into different angular deflection needle 330 or the locking leg 31 is inclined to the support leg 320. 例如锁定腿330可以接近90°的角度倾斜于支承腿320。 330 may, for example, the locking legs is inclined at an angle close to 90 ° to the support leg 320. 见图17并比较支承腿620和锁定腿630。 Comparative Figure 17 and locking leg support legs 620 and 630. 的确,锁定腿330事实上可垂直于支承腿320,或在平行于或垂直于支承腿320之间的任何位置定向。 Indeed, the fact that locking leg 330 may be perpendicular to the support leg 320, or oriented in any position between the parallel or perpendicular to the support leg 320. 对于片簧300结构的主要准则是使锁定腿330朝向插入器针31偏置,这样,它接合直径放大部分38。 The main criterion for the configuration of the leaf spring 300 is inserted into the locking leg 330 towards the needle 31 is biased such that it engages enlarged diameter portion 38.

锁定腿330与插入器针31邻接的那部分的轮廓可形成为一基本上半圆的截面,以近似插入器针31主体部分的圆周部分。 Locking leg portion 330 and the profile of the insertion needle 31 abuts may be formed as a substantially semicircular cross-section, an approximately circumferential portion of the insertion needle 31 of the body portion. 当插入器针31近侧移动通过锁定腿330时,这尽可能减小了在插入器针31上的曳力。 When the insertion needle 31 is moved proximally by the locking legs 330, which minimize the drag force on the needle 31 is inserted.

在图11至13的实施例中,优选使用了图3A所示的直径放大部分38。 In the embodiment of FIGS. 11 to 13, is preferably used as shown in FIG. 3A enlarged diameter portion 38. 该实施例包括一退拨的近端部分38a和一基本垂直于插入器针31的纵向轴线的远端部分38b。 This embodiment includes a proximal end portion 38a of the dial and back substantially perpendicular to a longitudinal axis of the distal end of needle 31 is inserted into the portion 38b. 然而,应该理解也可使用插入器针31上不连续部分的其它实施例。 However, it should be understood that the insertion needle 31 on the discontinuous portions other embodiments may also be used. 此外,与不连续部分接合的锁定腿330的端部可近似构造成与不连续部分机械地接合。 Further, locking engagement with the discontinuity of the end of the leg portion 330 may be approximated and configured to mechanically engage the discontinuity. 例如,如果凹槽39用作不连续部分,与凹槽30接合的锁定腿330的部分将包括一接片以接合该凹槽。 For example, if the groove 39 as the discontinuous portion 30 is engaged with the groove 330 of the locking leg portion including a tab to engage the groove. 例如,参见图31中的接片。 For example, the tab 31 Referring to FIG.

随着插入器针31近侧向地撤进针罩40,锁定腿330跨在插入器针31的主体部分上。 With the needle 31 inserted radially withdrawn proximally into the needle shield 40, the locking body portion 330 across the needle 31 is inserted in the leg. 随着放大部分近侧向地拖过锁定腿330,锁定腿330还跨在直径放大部分38上。 As the proximal radially enlarged portion 330 is dragged over the locking leg, the locking leg 330 also diametrically across the enlarged portion 38. 具有一退拨的近端部分38a便于直径放大部分38移动通过锁定腿330,于是直径放大部分38位于锁定腿330的近端侧。 Dial having a back proximal portion 38a facilitates an enlarged diameter portion 38 is moved by the locking legs 330, an enlarged diameter portion 38 is positioned so the locking leg 330 of the proximal end side. 如果在直径放大部分38和远端部分38b移向锁定腿330的近端的近侧向之后,插入器针31向远侧移动,则锁定腿330的近端将接合远端部分38b并阻止插入器针31的进一步的远侧向的运动。 If after the enlarged portion 38 and a distal portion 38b toward the proximal end of the locking legs 330 proximal to the diameter of the insertion needle 31 moves distally, the proximal end of locking leg 330 will engage and prevent the distal end portion 38b is inserted further movement of the needle 31 distal to the. 此外,如图所示,这种远侧向施加在插入器针31上的力将使锁定腿330顺时针方向转动。 Further, as shown, which applies a force on the far side of the insertion needle 31 will cause the locking legs 330 clockwise. 这迫使插入器针31向上与针罩40的腔室42的壁紧紧接合并阻止锋利的末端32再次裸露。 This forces the needle is inserted into the chamber 31 upwardly of the needle shield 40 firmly engage wall 42 prevents the sharp tip 32 exposed again.

直径放大部分38和近侧壁310的接合阻止了插入器针31的进一步的近侧运动。 An enlarged diameter portion 38 engages the proximal wall 310 and prevents further insertion of the proximal movement of needle 31. 再者,如有要求的话,可使用连接针罩40与针套节34的一系链50,来阻止这种插入器针31相对于针罩40的不希望的近侧的移动。 Further, if desired, using a tether connecting needle shield 40 with the hub 34 of the needle 50, to prevent such insertion needle 31 moves with respect to undesirable needle cover 40 proximally.

图14和15示出阻止插入器针31的不希望的远侧运动的锁定件的第四实施例。 Fourth Embodiment FIGS. 14 and 15 show the insertion needle 31 to prevent unwanted distal movement of the locking member. 第四实施例是一片簧400,它包括支承一对支承腿420的一近侧壁410,每个支承腿连接于一锁定腿430。 The fourth embodiment is a leaf spring 400, which comprises a pair of support legs 410,420 to a proximal wall, each support leg 430 is connected to a locking leg. 近侧壁410其中形成一开口415,插入器针31可通过开口延伸。 Proximal wall 410 in which is formed an opening 415, the insertion needle 31 may extend through the opening. 近侧壁410,支承腿420和锁定腿430构造成:锁定腿朝向插入器针31的主体部分偏置。 Proximal wall 410, support leg 420 and the locking leg 430 is configured to: the locking leg towards the insertion needle 31 of the body portion offset. 在本实施例中,插入器针31最好包括如图3A所示的直径放大部分38。 In the present embodiment, the insertion needle 31 preferably includes an enlarged diameter portion 3A shown in FIG. 38. 尽管有如前述,但还可使用不连续部分的其它实施例。 Although the like, but may also be discontinuous portions of other embodiments.

锁定腿430相对于支承腿420可在一个宽的角度范围内定向。 Locking legs 430 to support leg 420 may be oriented over a wide angular range. 较佳地,锁定腿430相对于支承腿的倾斜角小于90°。 Preferably, the locking leg 430 with respect to the angle of inclination of the support leg is less than 90 °. 不管何种角度定向,锁定腿430必须与远端部分38b接合,以阻止插入器针31的不希望的远侧运动。 Regardless of the angular orientation, locking leg portion 430 to be engaged with the distal end 38b, to prevent undesired insertion needle 31 distally.

随着插入器针31近侧向地撤进针罩40,锁定腿430跨在插入器针31的主体部分上。 With the needle 31 inserted radially withdrawn proximally into the needle shield 40, the locking legs 430 across the upper body portion 31 is inserted into the needle. 随着放大部分近侧向地拖过锁定腿430,锁定腿430还跨在直径放大部分38上。 As the proximal radially enlarged portion 430 is dragged over the locking leg, the locking leg 430 also diametrically across the enlarged portion 38. 具有一退拨的近端部分38a便于直径放大部分38移动通过锁定腿430,于是直径放大部分38位于锁定腿430的近端侧。 Dial having a back proximal portion 38a facilitates an enlarged diameter portion 38 is moved by the locking legs 430, an enlarged diameter portion 38 is positioned so the locking leg 430 of the proximal end side. 如果在直径放大部分38和远端部分38b移向锁定腿430的近端的近侧向之后,插入器针31向远侧移动,则锁定腿430的端部将接合远端部分38b并阻止插入器针31的进一步的远侧向的运动。 If after the enlarged portion 38 and a distal portion 38b toward the proximal end of the locking legs 430 proximal to the diameter of the insertion needle 31 moves distally, the locking end portion 430 will engage the distal end of the leg portion 38b is inserted and blocked further movement of the needle 31 distal to the.

直径放大部分38和近侧310的接合阻止了插入器针31的进一步的近侧运动。 And an enlarged diameter portion 38 engages the proximal insert 310 prevents further proximal movement of needle 31. 再者,如有要求的话,可使用连接针罩40与针套节34的一系链50,来阻止这种插入器针31相对于针罩40的不希望的近侧的移动。 Further, if desired, using a tether connecting needle shield 40 with the hub 34 of the needle 50, to prevent such insertion needle 31 moves with respect to undesirable needle cover 40 proximally.

如图14和15所示,片簧400和外壳41可构造成提高锁定腿430和直径放大部分38之间的机械接合。 As shown in FIG. 14 and 15, the leaf spring 400 and the housing 41 may be configured to increase the locking leg 430 and mechanical engagement between the enlarged diameter portion 38. 这可通过下列方式得以实现:在直径放大部分38撤进锁定腿430的近侧的针罩40内之后,使片簧400远侧向地移进腔室42。 This can be achieved by the following manner: After the enlarged diameter portion 38 into the lock 40 to withdraw the proximal leg 430 of the needle shield, the sheet springs 400 move distally into the chamber 42 circumferentially. 在本实施例中,腔室42具有退拨的截面。 In the present embodiment, the back chamber 42 having a cross-section of the dial. 这种退拨即是腔室42的内直径从近端部分朝向远端部分逐步减小。 Such withdrawal dial i.e. the inner diameter decreases gradually toward the distal end 42 of the chamber portion from the proximal portion. 这种退拨应足以接合支承腿420并迫使支承腿420朝向插入器针31。 This should be sufficient to engage dial back support legs 420 toward support leg 420 and forces the needle 31 is inserted. 较佳地,由腔室42的壁和插入器针31的纵向轴线之间的夹角所限定的该退拨应小于90°减去支承腿420的表面和腔室42的壁之间形成的静滑动角。 Preferably, the angle between the walls of chamber 42 and the needle 31 is inserted into the longitudinal axis defined between the dial back less than 90 ° is formed between the wall surface and subtracting the support leg 420 of the chamber 42 static slide angle. 采用这种结构,插入器针31其后的任何远侧运动将使片簧400对于插入器针31远侧向地移动,直到支承腿420接合外壳41的退拨的壁。 With this structure, the insertion needle 31 of any subsequent distal movement of the leaf spring 400 will move radially to the insertion needle 31 distally, until the support leg 420 engages the housing back wall 41 of the dial. 随着支承腿420接合退拨壁,锁定腿430被迫与插入器针31的轴较紧密的接触,并且甚至可裹到插入器针31的面内去。 As support leg 420 engaging dial back wall, the locking shaft 430 and the forced insertion of the needle 31 tighter contact leg, and may even be wrapped onto the inner wall 31 to the insertion needle. 这种锁定腿430和远端部分38b之间的紧密接触确保临床医生在正常情况下和以正常的方式,使用导管和插入器针的组件10不可能超过为克服锁定腿430端部和远端部分38b之间的机械接合所需要的力。 This intimate contact between the locking legs 430 and the distal end portion 38b to ensure that under normal circumstances the clinician in the normal way and, using a catheter and insertion needle assembly 10 can not exceed 430 to overcome the locking leg portion and a distal end force required mechanical engagement between the portion 38b.

阻止插入器针31的不希望的远侧运动的锁定件的第五实施例是阻止插入器针31的不希望的远侧运动的锁定件的第四实施例的变体,且当插入器针31撤进针罩40时,它将在插入器针31上的曳力减小到最小。 The fourth embodiment variant of the fifth embodiment of the insertion needle 31 to prevent unwanted distal movement of the locking member is inserted into the needle to prevent undesired movement of the distal 31 of the locking member, and when the insertion needle withdrawal of the needle 31 when shield 40, which will drag on the insertion needle 31 is reduced to a minimum. 见图16。 See Figure 16. 第五实施例是一片簧500。 The fifth embodiment is a leaf spring 500. 它包括支承一对支承腿520的一近侧壁510,每个支承腿连接于一锁定腿530。 It comprises a pair of support legs 510,520 to a proximal wall, each support leg 530 is connected to a locking leg. 近侧壁510其中形成一开口515,插入器针31可通过开口延伸。 Proximal wall 510 in which is formed an opening 515, the insertion needle 31 may extend through the opening. 近侧壁510,支承腿520和锁定腿530构造成:锁定腿朝向插入器针31的轴偏置。 Proximal wall 510, support leg 520 and the locking leg 530 is configured to: the locking leg towards the insertion needle 31 of the shaft offset. 在本实施例中,插入器针31最好包括如图3A所示的直径放大部分38。 In the present embodiment, the insertion needle 31 preferably includes an enlarged diameter portion 3A shown in FIG. 38. 尽管有如前述,但还可使用不连续部分的其它实施例。 Although the like, but may also be discontinuous portions of other embodiments.

至少一个,但最好每个支承腿520包括一支承指形物550。 At least one, but preferably each support leg 520 includes a supporting fingers 550. 每个支承指形物550与形成在外壳41上的支承接片560合作,以保持每个支承腿520离开插入器针31的轴。 Each support finger 550 is formed with a support web 560 in the housing 41 cooperate to maintain the shaft 31 away from the insertion needle 520 of each support leg. 片簧500设置在腔室42内,这样,当插入器针31撤回到针罩40内时,近端壁510向远侧与腔室42的近侧壁分离,以允许片簧500的近侧运动。 The leaf spring 500 disposed within the chamber 42, so that, when the insertion needle 31 is withdrawn into the needle shield 40, the proximal end wall 510 separating the distal and proximal wall of the chamber 42 to allow the leaf spring 500 of the proximal motion. 当由于插入器针31近侧运动的结果,使直径放大部分38接合近侧壁510时,片簧500将随插入器针31的连续的近侧运动而近侧向地移动。 When the needle 31 is inserted as a result of the proximal movement of the enlarged diameter portion 38 engages the proximal wall 510, the leaf spring 500 with a continuous proximal movement of the insertion needle 31 moves proximally radially. 这使每个支承指形物550移动而与支承接片560脱开,然后又使支承腿520返回到其向内的位置。 This enables each support finger 550 is moved and disengaged from the support strips 560, and then the support legs 520 to return to its inward position. 在向内的位置,锁定腿530接合插入器针31的主体部分。 In the inward position, the locking leg 530 engaging the body portion 31 of the insertion needle. 插入器针31的不希望的远侧和近侧运动以与第四实施例的锁定件实施的同样方式受到阻止。 Undesired insertion needle 31 and distal movement of the proximal member in the same manner as the embodiment of the fourth embodiment of the lock is prevented.

图17和18示出阻止插入器针31的不希望的远侧运动的锁定件的第六实施例。 The sixth embodiment of the locking member 17 and 18 show the insertion needle 31 to prevent unwanted distal movement. 在本实施例中,片簧600包括支承一对支承腿620的一近侧壁610,每个支承腿连接于一锁定腿630。 In the present embodiment, the leaf spring 600 comprises a pair of support legs 610,620 to a proximal wall, each support leg 630 is connected to a locking leg. 近侧壁610其中形成一开口615,插入器针31可通过开口延伸。 Proximal wall 610 in which is formed an opening 615, the insertion needle 31 may extend through the opening. 在本实施例中,锁定腿630不必朝向插入器针31的轴偏置。 In the present embodiment, the locking leg 630 towards the insertion needle is not necessary to bias the shaft 31. 事实上,当插入器针31近侧向地移入针罩40内时,为了将在插入器针31的轴上的曳力减小到最小,锁定腿630的端部最好与插入器针31的轴分开。 In fact, when the insertion needle 31 proximally into the needle shield 40 radially, in order to reduce to a minimum drag force of the shaft 31 is inserted into the needle, the locking ends of the legs 630 of the insertion needle 31 is preferably separate axis. 这使插入器针31容易地撤回到针罩40内。 This insertion needle 31 is easily withdrawn into the needle shield 40.

在本实施例中,插入器针31最好包括如图3A所示的直径放大部分。 In the present embodiment, the insertion needle 31 preferably includes an enlarged diameter portion shown in Figure 3A. 虽然前面已作讨论,但还可使用不连续部分的其它实施例。 While the foregoing discussion has been made, but may also use other embodiments the discontinuous portion.

腔室42具有一近端部分和一远端部分,其中近端部分的直径小于远端部分的直径,在将一导管插入一病人体内之前,当锋利的末端32位于针罩40的远端时,片簧600大致位于在腔室42的远端部分。 Chamber 42 having a proximal portion and a distal portion, wherein the diameter of the proximal portion is smaller than the diameter of the distal portion of a catheter is inserted before a patient, when the sharp tip 32 at the distal end of the needle 40 when the shield , the leaf spring 600 is substantially located at a distal end portion of the chamber 42. 随着插入器针31继续近侧向地移入针罩40,直径放大部分38移向锁定腿630的近侧,接着接合近侧壁610,再紧接着将片簧600拉入腔室42的近端部分。 Continue with the insertion of needle 31 proximally into needle shield 40 radially, an enlarged diameter portion 38 toward the proximal locking legs 630, proximal wall 610 is then engaged, and then followed by the leaf spring 600 will pull into the chamber 42 nearly end portion. 近端部分较小的直径迫使支承腿620从而锁定腿630朝向插入器针31的主体部分,这样,锁定腿630可接合在直径放大部分38的远侧但靠近直径放大部分38的插入器针31。 Forcing the smaller diameter proximal portion of the support leg 620 is inserted so that locking leg 630 towards the body portion 31 of the needle, so that locking leg 630 may engage an enlarged diameter distal portion 38, but close to the enlarged diameter portion 38 is inserted into needle 31 .

片簧600包括至少一个(最好为二个)径向向外、从支承腿620延伸的偏置指形物650。 The leaf spring 600 comprises at least one (preferably two) radially outwardly offset from the support leg 620 extending fingers 650. 外壳41形成有接纳每个指形物650的槽沟660,其中,每个槽沟660具有一面向近侧的台肩。 Housing 41 is formed with a receiving station proximally facing shoulder grooves each finger 660 650, wherein each groove 660 has. 随着片簧600通过直径放大部分38和近侧壁610之间的接合而被近侧向地拉入腔室42的近端部分,由于指形物接触到外壳41的内壁,所以指形物650向内弯曲。 With the engagement between the leaf spring 600 and a proximal wall portion 38 to enlarge the diameter 610 is circumferentially pulled proximally into the chamber of the proximal portion 42, since the finger 41 contacting the inner wall of the housing, the fingers 650 bent inwardly. 然而,一旦指形物650与槽沟660对齐,指形物650能恢复到其向外的位置并移入槽沟660。 However, once the fingers 650 and groove 660 are aligned, the fingers 650 can be restored to its outward position and into the groove 660. 指形物650和面向近侧的槽沟660的台肩的接合阻止了片簧相对于外壳41的其后任何远侧向的运动。 Fingers engage the shoulder 650 and the proximally facing groove 660 prevents the leaf spring away laterally with respect to any subsequent movement of the housing 41. 当片簧600位于外壳41中的这个位置时,锁定腿630的端部邻接在直径放大部分38的远侧的但邻近直径放大部分的插入器针31。 When the leaf spring 600 is located in the housing 41 in this position, the locking end portion adjacent to the leg 630 in the distal portion 38 of enlarged diameter, but the insertion needle 31 adjacent the enlarged diameter portion. 因此,通过锁定腿630的端部和远端部分38b的接合,阻止了插入器针31任何不希望的远侧运动。 Thus, by engaging the locking portion 38b of the leg 630 and a distal end portion of the insertion needle 31 to prevent any unwanted distal movement.

图19至21示出了阻止插入器针31不希望的远侧运动的锁定件的第七实施例。 Figures 19 to 21 shows a seventh embodiment of the insertion needle 31 to prevent unwanted distal movement of the locking member. 在本实施例中,片簧700包括一支承一支承腿720的近侧壁710,支承腿720又顺次连接到一锁定腿730。 In the present embodiment, the leaf spring 700 supported by a supporting leg includes a proximal wall 710 720, the support leg 720 in turn is connected to a locking leg 730. 近侧壁710在其间形成一开口715,插入器针31通过该开口可延伸。 Proximal wall 710 is formed an opening 715, the insertion needle 31 may extend through the opening therebetween. 锁定腿730最好大致垂直于支承腿720且在其中形成一开口735。 Locking leg 730 is preferably substantially perpendicular to an opening 735 formed in one leg 720 and the support. 开口735的直径最好略大于插入器针31的主体部分的直径但小于直径放大部分38的直径。 Diameter is preferably slightly larger than the diameter of the opening 735 of the body portion of the inserter needle 31 but smaller than the diameter 38 of the enlarged diameter portion. 近侧壁710,支承腿720和锁定腿730构造成:锁定腿730朝向插入器针31偏置。 Proximal wall 710, support leg 720 and the locking leg 730 is configured to: locking leg 730 biased toward the insertion needle 31. 当然,片簧700的取向可以是围绕插入器针31的纵向轴线的任何夹角,这样支承腿朝向插入器针31偏置。 Of course, the orientation of the leaf spring 700 may be any angle around the longitudinal axis of the insertion needle 31, so that the support leg 31 biased toward the insertion needle.

在本实施例中,插入器针31必须包括直径放大部分38。 In the present embodiment, the insertion needle 31 must include an enlarged diameter portion 38. 最好使用图3c所示的直径放大部分38。 Figure 3c is preferably used as shown in an enlarged diameter portion 38.

在片簧700未锁定和偏置的位置上,插入器针31的锋利的末端32位于针罩40的远端的远侧,且锁定腿730接触并朝向插入器针31偏置。 In the unlocked position of the leaf spring 700 and the bias on the insertion needle sharpened tip 31 at the distal end 32 of needle shield 40 distally and lock the contact leg 730 and biased toward the insertion needle 31. 见图19。 See Figure 19. 随着插入器针31近侧向地撤回进针罩40,锁定腿730跨立在插入器针31的表面上。 With the needle 31 inserted radially withdrawn proximally into needle shield 40, the locking legs 730 straddle the upper surface 31 of the insertion needle. 锁定腿730可包括一与插入器针31接触的、近侧向地或远侧向地朝向的接片738,以将在插入器针31上的曳力减小到最小。 Locking legs 730 may include a contacting with the insertion needle 31, the proximal or distal circumferentially radially towards the tabs 738 to the drag force on the needle 31 is inserted minimized. 一旦插入器针31的锋利的末端移向锁定腿730的近侧,片簧700返回到其非偏置的,即致动的位置,这样,开口735基本上与插入器针31和远端开口45的纵向轴线对齐。 Once inserted into the sharp tip of the needle 31 toward the proximal locking legs 730, the leaf spring 700 returns to its unbiased, i.e. actuated position such that the opening 31 and the distal end 735 substantially needle insertion opening 45 aligned with the longitudinal axis. 如果插入器针31此后相对于针罩40远侧向地移动,插入器针31的锋利的末端通过开口735延伸,直到直径放大部分38接合开口735。 Thereafter, if the insertion needle 31 with respect to the needle shield 40 distally radially moved, sharp end of needle 31 is inserted through the opening 735 extends until the enlarged diameter portion 38 engages the opening 735. 因此阻止了插入器针31的不希望的远侧向的运动,这样,锋利的末端32不会再次裸露在针罩40之外。 Thereby preventing the insertion needle 31 away undesired lateral movement, so that the sharp end of the needle 32 is not exposed outside the cover 40 again.

通过直径放大部分38和近侧壁710的接合,阻止了插入器针31的进一步的近侧向运动。 And by an enlarged diameter portion 38 engages the proximal wall 710, preventing further insertion needle 31 near the lateral movement. 再者,对片簧700来说没有必要包括近侧壁710和开口715,只要代之以使用近端开口43、垫圈49或系链50,来阻止插入器针31相对于针罩40的这种不希望的近侧向的运动。 Furthermore, it is not necessary for the pair of leaf springs 700 and the opening 710 includes a proximal wall 715, is used instead as long as the proximal opening 43, a gasket 49 or tether 50, to prevent the insertion needle 31 with respect to the needle shield 40 of this kinds of undesirable nearly sideways movement.

锁定腿730可具有一邻近开口735的漏斗状的结构736。 Locking legs 730 may have a structure adjacent to the opening 735 of the funnel 736. 这个漏斗状结构736用作插入器针31的导向件,以保证:如果在插入器针31撤回进针罩40之后其向远侧移动时,它通过开口735。 The funnel shaped structures 736 functions as the insertion needle guide member 31, to ensure that: if withdrawn into the needle shield 31 after the insertion needle 40 to move distally, which through the opening 735. 漏斗状结构736构造成与图3c所示的直径放大部分38的退拨的远端部分38b的形状互补。 Funnel shaped structures 736 configured as shown enlarged diameter distal end portion 38 of the dial back portion 38b is complementary to the shape of FIG. 3c.

图22至25示出了阻止插入器针31不希望的远侧运动的锁定件的第八实施例。 22 to 25 show an eighth embodiment of the insertion needle 31 to prevent unwanted distal movement of the locking member. 在本实施例中,插入器针31必须包括直径放大部分38。 In the present embodiment, the insertion needle 31 must include an enlarged diameter portion 38. 最好使用如图3c所示的直径放大部分38。 Diameter is preferably used in an enlarged portion 38 shown in Figure 3c.

本实施例的锁定件是一片簧800,它包括一近侧壁810,一与近侧壁810的一端连接的支承腿820以及一与支承腿820连接的锁定腿830。 The locking device of the present embodiment is a spring 800, which includes a proximal wall 810, a support leg connected to one end 810 of the proximal wall 820 and a locking legs 830 and 820 connected to support leg. 此外,片簧800包括一与近侧壁810的另一端连接的向外偏置的锁定臂850。 Further, the leaf spring 800 includes an outwardly biased end connected to the other of the proximal wall 810 of the locking arm 850. 一开口815形成在近侧壁810内,且一开口835形成在锁定腿830内。 An opening 815 is formed in the proximal wall 810, 835 and an opening 830 formed in the locking leg. 开口815和835允许插入器针31通过其间。 The openings 815 and 835 permit insertion of needle 31 therethrough. 开口835的直径略大于直径放大部分38的直径,而开口815的直径小于直径放大部分38的最大直径。 Diameter of the opening 835 is slightly larger than the diameter of enlarged diameter portion 38, the diameter of the opening 815 is smaller than the maximum diameter of the enlarged diameter portion 38.

外壳41的腔室42形成一近端部分,一中间部分和一远端部分,其中,中间部分的直径小于近端部分和远端部分的直径。 The housing chamber 41 is formed a proximal portion 42, an intermediate portion and a distal portion, wherein the diameter of the intermediate portion is less than the diameter of the proximal portion and a distal portion. 由于这种结构,腔室42形成一面向近侧的台肩860和一面向远侧的台肩870。 Due to this structure, the chamber 42 is formed in a proximally facing shoulder 860 and a distal facing shoulder 870. 片簧800初始位于腔室42的中间部分,这样,锁定腿830邻接面向远侧的台肩870。 Initially the leaf spring 800 intermediate portion of the chamber 42, so that locking leg 830 abuts the shoulder 870 faces distally. 此外,片簧800位于腔室42的中间部分,这样,它相对于外壳41可近侧向地移动。 Further, the leaf spring 800 intermediate portion of the chamber 42, so that it proximally relative to the housing 41 can be moved radially.

在锋利的末端32撤回进入针罩40之前,片簧800位于图22所示的位置,这样,锁定腿830大致垂直于插入器针31的轴。 Before withdrawal of the sharp tip 32 into the needle shield 40, the leaf spring 800 is located in the position shown in FIG. 22, so that locking leg 830 is substantially perpendicular to the needle shaft 31 is inserted. 随着插入器针31近侧向地移入针罩40,直径放大部分38通过锁定腿830的开口835,直到直径放大部分38的近端接合近侧壁810。 As the needle 31 is inserted proximally into needle shield 40 radially, an enlarged diameter portion 38 by a locking leg openings 835,830 until the enlarged diameter proximal portion 38 engages a proximal wall 810. 由于开口815的直径小于直径放大部分38的最大直径,阻止了插入器针31相对于片簧800的连续的、近侧向的相对运动。 Since the diameter of the opening 815 is smaller than the maximum diameter of the enlarged diameter portion 38, to prevent continuous relative movement of the near side relative to the insertion needle 31 of the leaf spring 800. 然而,插入器针31的连续的、近侧向的运动使片簧800近侧向地运动,直到近侧壁810邻接靠在腔室42的近侧壁上。 However, a continuous, nearly lateral movement of the insertion needle 31 of the sheet spring 800 radially proximal movement until the proximal wall 810 abuts against the proximal wall 42 of the chamber. 在这点上,插入器针31和片簧800的进一步的近侧运动被阻止。 In this regard, the insertion needle 31 and further proximal movement of the leaf spring 800 is prevented.

由于锁定腿830邻接面向远侧的台肩870,所以片簧800相对于外壳41的近侧运动使锁定腿830转动。 Since the locking leg 830 adjacent to a distal facing shoulder 870, so that the leaf spring 800 relative to the proximal movement of the housing 41 of the locking leg 830 is rotated. 当锁定腿830相对于插入器针31的这种定向在改变,于是锁定腿830不再垂直于插入器针31。 When the locking leg 830 with respect to this orientation of the insertion needle 31 changes, thus locking legs 830 is no longer perpendicular to the insertion needle 31. 比较图22和23。 Comparison of Figures 22 and 23. 此外,片簧800的近侧运动使锁定臂850变得与腔室42的近端部分较大直径对齐。 In addition, proximal movement of the leaf spring 800 of the locking arm 850 becomes aligned with the proximal portion of the larger chamber 42 diameter. 这使锁定臂850移到其向外的位置,远离插入器针31而进入腔室42的近端部分,这样,锁定臂850邻接面向近侧的台肩860。 This lock arm 850 is moved to its outward position, away from the insertion needle 31 into the chamber 42 of the proximal portion, so that the locking proximally-facing shoulder 860 abuts arm 850. 在该位置,阻止了片簧800相对于外壳41的其后的任何远侧向的运动。 In this position, preventing any subsequent movement of the far side of the housing 41 with respect to the leaf spring 800.

当锁定腿830不再垂直于插入器针31时,开口835斜交于直径放大部分38。 When the locking leg 830 is no longer perpendicular to the insertion needle 31, the enlarged diameter opening 835 in the oblique portion 38. 因此,在该取向上,开口835的有效直径小于直径放大部分38的直径而近似等于插入器针31主体部分的直径。 Thus, in this orientation, the effective diameter of the opening 835 is smaller than the diameter of the enlarged diameter portion 38 is approximately equal to the diameter of the insertion needle 31 of the body portion. 这里所用的术语:“有效直径”,指的是当开口835投影到一垂直于插入器针31的纵向轴线的平面上时,开口835影像的直径。 As used herein, the term: "effective diameter" refers to the diameter of the opening when projected onto the plane perpendicular to the longitudinal axis of the insertion needle 31 and 835, the opening 835 of the image. 因为开口835的有效直径小于如图23和25所示方向的直径放大部分38的直径,直径放大部分38被阻止远侧向移动通过锁定腿830,且锋利的末端32有效地锁定在针罩40内。 Since the effective diameter of the opening 835 is smaller than the diameter 23 and direction 25 as shown enlarged-diameter portion 38, an enlarged diameter portion 38 is prevented from moving laterally away by the locking legs 830, and the sharp end of the needle 32 effectively locks the cover 40 Inside. 的确,随着插入器针31远侧向运动,锁定腿830和插入器针31之间的结合力增加,使得直径放大部分38远侧向通过锁定腿830的移动、使锁定失效变得极其困难。 Indeed, the insertion needle 31 with a distal movement, increasing the coupling force between the locking legs 31 and the insertion needle 830, so that the diameter of the enlarged portion 38 by a distal movement of the locking legs 830, failure of the lock extremely difficult .

图26至28示出了阻止插入器针31不希望的远侧运动的锁定件的第九实施例,且它是一管900。 26 to 28 shows a ninth embodiment of the insertion needle 31 to prevent unwanted distal movement of the locking member, and it is a 900. 在本实施例中,在插入器针31上的不连续部分最好是一直径放大部分。 In the present embodiment, the discontinuities in the insertion needle 31 is preferably a part of an enlarged diameter. 尽管可施用直径放大部分38的其它实施例,但最好使用如图3A所示的直径放大部分38。 Although other embodiments may be administered diameter enlarged portion 38, but is preferably used as shown in an enlarged diameter portion 38 shown in FIG. 3A.

管900位于腔室42内且包括至少一个可移动的矛状接片950,它沿近侧方向向内延伸入管900。 Tube 900 located in the chamber and comprises at least one lance tab 950 is movable within 42, which extends inwardly in the proximal direction into the tube 900. 最好在管900的相对侧形成两个这样的接片950。 It is preferably formed of two such tabs 950 on opposite sides of the tube 900. 管900的远端的内径大于直径放大部分38的直径,以使插入器针31自由地在其内移动。 The inner diameter of the distal end of the tube 900 is larger than the diameter of the enlarged diameter portion 38, the insertion needle 31 to move freely therein. 由于接片950是可移动的,所以随着插入器针31近侧向地撤进针罩40,直径放大部分38能移动通过接片950的近端。 Since the tab 950 is movable, so that with the insertion of needle 31 withdrawn proximally into needle shield 40 radially, an enlarged diameter portion 38 can be moved through the proximal end 950 of the tab. 再者,通过退拨的近端部分38a,插入器针31容易地通过接片950向近侧运动。 Further, the back proximal portion 38a of the dial, the insertion needle 31 moving proximally through the easily tab 950. 一旦插入器针31近侧向地撤进针罩40,这样,接片950处于远端部分38b的远侧,通过接片950的近端和直径放大部分38的结合,将阻止插入器针31任何不希望的远侧运动。 Once the needle 31 is inserted radially withdrawn proximally into the needle shield 40 so that tab 950 is in a distal portion 38b of the distal end, a proximal end and by combining tabs 950 enlarged diameter portion 38, will prevent the needle 31 inserted any unwanted distal movement. 插入器针31的进一步的近侧运动因直径放大部分38和近端开口43的接合而被阻止。 Insert further proximal movement of needle 31 due to the enlarged diameter portion 38 and the engagement of proximal opening 43 is prevented. 或者,管900的近端部分形成的内直径小于直径放大部分38的直径,以阻止插入器针走出管900的不希望的近侧运动。 Alternatively, the inner diameter of the tube proximal portion 900 is formed smaller than the diameter of the enlarged diameter portion 38, the insertion needle to prevent unwanted proximal movement out of the tube 900. 此外,可使用垫圈49或系链以阻止不希望的近侧运动。 Further, a gasket 49 may be used to prevent or tether unwanted proximal movement.

图29至32示出了阻止插入器针31不希望的远侧运动的锁定件的第十实施例。 FIGS. 29-32 illustrate a tenth embodiment of the insertion needle 31 to prevent unwanted distal movement of the locking member. 该锁定件是一变速螺母1000,它形成一通孔1010,通孔的直径略大于插入器针31的主体部分的直径。 The locking member is a nut gear 1000, which forms a through hole 1010, through-hole diameter is slightly larger than the diameter of the body portion of the insertion needle 31. 这允许插入器针31延伸通过变速螺母1000。 This allows the insertion needle 31 extends through the gear nut 1000. 变速螺母1000包括至少一个但最好是多个可移动的接片1020,它们从变速螺母1000的主体部分1030延伸。 Shift nut 1000 includes at least one but preferably a plurality of movable tabs 1020, which extend from the body portion 1030 shift nut 1000. 接片1020朝向插入器针31偏置,于是它们近侧取向并朝向插入器针31的近端向内延伸。 Tab 1020 inserter needle 31 is biased towards, and thus they are oriented proximally toward the proximal end of the insertion needle 31 extending inwardly. 接片1020的远端与变速螺母1000的主体部分1030连接,例如,通过一活铰。 Tab 1020 and the distal end of the body portion 1000 of the shift nut 1030 is connected, e.g., by a living hinge. 参见图32。 32 Referring to FIG.

因为接片1020是近侧取向且可移动,所以,随着插入器针31近侧向地撤进针罩40,直径放大部分38可容易地移动通过接片1020的近端。 Because tab 1020 is proximally oriented and movable, so that, as the needle 31 is inserted radially withdrawn proximally into the needle shield 40, an enlarged diameter portion 38 can be easily moved through the proximal end 1020 of the tab. 一旦插入器针31近侧向地撤进针罩40使接片1020位于直径放大部分38的远侧,插入器针31的不希望的远侧运动因接片1020的近端和直径放大部分38的远端部分38b的接合而被阻止。 Once the insertion needle 31 withdrawn proximally into needle shield 40 radially so that the tab 1020 located at the distal portion 38 of enlarged diameter, the insertion needle 31 is undesirable due to the distal movement of the proximal end of tab 1020 and an enlarged diameter portion 38 the engagement of the distal end portion 38b is prevented. 接片1020的大致的近侧的取向也造成接片1020咬入插入器针31的表面,从而将插入器针31保持就位。 Tab 1020 substantially oriented proximal tab 1020 also caused to bite into the surface 31 of the insertion needle, the insertion needle 31 so held in place. 插入器针31的不希望的近侧运动因直径放大部分38和近端开口43或垫圈49的接合而被阻止。 The insertion needle 31 is not desirable because the diameter of the proximal movement of the enlarged portion 43 or 38 engages washer 49 and the proximal opening is prevented. 再者,可使用近端开口43,垫圈49或系链50来阻止这种不希望的近侧运动。 Further, using the proximal opening 43, a gasket 49 or tether 50 to prevent this undesired proximal movement.

如图31所示,插入器针31的不连续部分可呈诸如图3E,3F和3G所示的凹槽39的形式。 As shown in FIG. 31, a discontinuous portion of the insertion needle 31 may be in such 3E, the form shown in 3F and 3G 39 of the groove. 当插入器针31和凹槽39通过变速螺母1000撤回时,至少一个接片1020将落进凹槽39。 When the needle is inserted into the recess 31 and the nut 39 withdrawn by the transmission 1000, the at least one tab 1020 will fall into the recess 39. 由于接片1020和凹槽39的面向远侧的部分(即近侧边缘)的接合,将阻止插入器针31其后的任何远侧运动。 Since the tab portion 1020 and a distal facing recess 39 (i.e., proximal edge) engagement will prevent any distal movement of needle 31 is inserted thereafter. 使用在主体部分1030周围形成的多个接片1020,保证至少有一个接片1020将接合凹槽39。 Use body portion 1030 formed around a plurality of tabs 1020, to ensure that there is at least one tab engagement groove 39 1020. 或者,可使用位于插入器针31周向上的多个纵向移位的凹槽39来擒获接片1020。 Alternatively, a needle 31 weeks in the insertion direction of a plurality of longitudinal grooves 39 captured displaceable tab 1020.

当使用一凹槽39作为插入器针31上的不连续部分时,例如如图3D所示的,取代一直径放大部分38,使用一连接针罩40和针套节34的系链50来阻止插入器针31相对于针罩40的不希望的近侧运动。 When using a needle inserted into the groove 39 as the discontinuous portion 31, for example, as shown in FIG. 3D, a substituted enlarged diameter portion 38 using a tether 40 connecting the needle shield and the needle hub 50 to block 34 the insertion needle 31 with respect to undesired proximal movement of needle shield 40. 还有,如这里所述,系链50是代替直径放大部分38与近端开口43或垫圈49的接合来达到阻止插入器针31从针罩40的近端部分近侧向地撤出的一种机构。 Also, as described herein, the tether 50 is replaced by an enlarged diameter portion 43 or 38 engages washer 49 and the proximal opening to prevent the insertion needle 31 reaches radially from the proximal end portion of the proximal withdrawal of the needle cover 40 of a kinds of institutions.

图33至35,37A,37B和37C示出了阻止插管器针31不希望的远侧运动的锁定件的第十一实施例。 33 to FIG. 35,37A, 37B and 37C illustrate an eleventh embodiment of the needle cannula 31 to prevent unwanted distal movement of the locking member. 在本实施例中,锁定件是一固位板1100,它包括诸接片1120,它们不从固位板1100的主体部分近侧向地延伸。 In the present embodiment, the locking member is a retention plate 1100, 1120 includes tabs such that they do not extend radially from the body portion of the proximal retention plate 1100. 具体见图37A。 Specifically Figure 37A. 然而,接片1120通过任何合适的机构,例如一活铰,仍然连接在固位板1100的主体部分上,这样,接片1120相对于固位板1100的主体部分可移动。 However, the tab 1120 by any suitable means, such as a living hinge, still attached to the body portion of the retention plate 1100, so that the tabs 1120 with respect to the body portion of the retention plate 1100 is movable. 接片1120在每个接片1120的端部之间形成一通孔1130,通孔的直径略大于插入器针31的主体部分的直径但小于直径放大部分38的直径。 Tab 1120 is formed a through hole 1130 between the ends of each tab 1120, slightly larger than the diameter of the through hole is inserted into the diameter of the body portion of the needle 31 but smaller than the diameter 38 of the enlarged diameter portion. 固位板1100位于靠近形成在外壳41的腔室42内的一中间壁1140的近侧的面。 Retention plate 1100 positioned proximal a surface of the intermediate wall 42 within the housing chamber 41 is formed near 1140. 中间壁1140形成一贯穿其中的开口1145,它的直径大于直径放大部分38的直径。 An intermediate wall 1140 through opening 1145 formed therein, its larger diameter than the diameter of enlarged portion 38.

随着插入器针31近侧向地移入针罩40,直径放大部分38可通过开口1145。 As the needle 31 is inserted proximally into needle shield 40 radially, an enlarged diameter portion 38 through the opening 1145. 此外,由于接片1120将避开直径放大部分38近侧向地移动,所以直径放大部分38可移动通过接片1120。 Further, since the tab 1120 away from the enlarged diameter portion 38 radially moves proximally, the enlarged diameter portion 38 may be moved by tab 1120. 然而,一旦直径放大部分38移到固位板1100的近侧,阻止了插入器针31相对于针罩40的其后的任何远侧运动。 However, once the diameter of the enlarged portion 38 is moved proximally retention plate 1100, preventing the insertion needle 31 with respect to any subsequent distal movement of needle shield 40. 这是因为直径放大部分38不能反向通过孔1130延伸,但取而代之,接合靠近孔1130的接片1120的表面。 This is because the enlarged diameter portion 38 extends through the hole 1130 can not be reversed, but instead, near the surface of the hole 1130 of the tabs 1120 engage. 此外,因为中间壁1140阻止接片1120的任何这种远侧运动,所以接片1120不能避开直径放大部分38而远侧向地运动。 Further, since the intermediate wall 1140 to prevent any such distal movement of the tab 1120, the tabs 1120 can not avoid an enlarged diameter portion 38 and the distal radially motion. 插入器针31的任何进一步的近侧运动因近端开口43,垫圈49或系链50而被阻止。 Needle inserted any further proximal movement of the proximal end 31 due to the opening 43, a gasket 49 or tether 50 is prevented.

图37B和37C示出了图37A所示固位板的各种变体。 FIGS. 37B and 37C show various variants of the retention plate 37A shown in FIG. 在这两种变体中,接片1120包括靠近孔1130的远侧延伸的指形物1101,于是形成孔1130的直径。 In both variants, tab 1120 includes a hole 1130 near the distal extending fingers 1101, thereby forming the diameter of the hole 1130. 指形物1101如图37B所示,而指形物1101'如图37C所示。 1101 as shown in FIG fingers 37B, and the fingers 1101 'shown in Figure 37C. 在图37C中,指形物1101'的外部成退拨形,这样,它们沿远侧方向朝插入器针31倾斜,且形成开口1145的内壁具有一互补的斜坡。 In FIG. 37C, fingers 1101 'dial back into the exterior shape, so that they are inclined toward the insertion needle 31 in the distal direction, and an inner wall of the opening 1145 is formed having a complementary ramp. 指形物1101和1101'填充中间壁1140上的开口1145内的任何多余空间并确保插入器针31的不希望的远侧运动。 Fingers 1101 and unwanted distal movement of 'any excess space within the opening 1145 in the intermediate wall 1140 and to ensure the filling needle 31 is inserted 1101. 在如图37C所示的变体的情形中,指形物1101'向插入器针31提供了一较大的保持力,以阻止插入器针31的不希望的远侧运动。 In the case of the variant shown in FIG. 37C, fingers 1101 'provides a greater holding force the insertion needle 31, to prevent undesired insertion needle 31 distally. 这是因为:随着插入器针31在直径放大部分38移向固位板1100的近侧后向远侧移动,指形物1101'将楔入开口1145,使插入器针31向远侧的运动变得更加困难。 This is because: With the insertion needle 31 is moved distally in the proximal portion 38 toward an enlarged diameter retention plate 1100, fingers 1101 'the wedge opening 1145, the insertion needle 31 distally of movement has become more difficult.

图33至36C,38和39示出一弹性的弹簧夹子1201的一第一实施例,夹子用来将针罩40连接到导管套节24上,直到插入器针31的锋利的末端32撤回进针罩40。 33 to 36C, 38 and 39 shows a resilient spring clip 1201 to a first embodiment, the clip 40 is connected to the needle shield to the catheter hub 24, until the sharp tip 31 of needle 32 is inserted into the withdrawn needle shield 40. 一呈V形结构的弹簧臂151形成该弹簧夹子。 Form a V-shaped spring arm configuration of the spring clip 151 is formed. 弹簧臂151设置在外壳41内,这样,V形的顶端向上指向外壳41的顶部,且当弹簧臂151处于非偏置位置时,形成V形的诸腿跨立在插入器针31的纵向轴线上。 The spring arm 151 is provided within the housing 41 such that the top of the V-shape pointing up to the top of the housing 41 and the spring arm 151 when in a non-biased position, legs forming a V-shape such that straddle the longitudinal axis of the insertion needle 31 on. 在这取向上,弹簧臂151适合横向于插入器针31的纵向轴线的运动。 In this orientation, the spring arm 151 for movement transverse to the longitudinal axis of the insertion needle 31. 这个运动是沿由外壳41上的一斜面159提供的一规定通道。 This motion is along a predetermined path by a ramp on the housing 41159 provided. 参见图38和39。 Referring to FIGS. 38 and 39.

当然,弹簧臂151可设置在外壳41内,这样,臂的顶部取向在与插入器针31的纵向轴线同心的一圆上的其它位置。 Of course, the spring arm 151 may be disposed within the housing 41 such that the alignment position of the top arm of the other on a circle concentric with the longitudinal axis of the insertion needle 31. 所要求的只在于弹簧臂151应适合横向于插入器针31的纵向轴线的运动。 The only required that the spring arm 151 should be adapted to the lateral movement of the longitudinal axis of the insertion needle 31. V形的顶部便于弹簧臂151在偏置条件下的来回弯曲。 V-shaped top of the spring arm 151 to facilitate bending back and forth under the bias conditions. 此外,V形的顶部可呈一活铰的形式。 Further, the top may be in the form of a V-shape of a living hinge.

当插入器针31的锋利的末端32位于针罩40的远侧时,插入器针31邻接弹簧臂151,以便在偏置的、非致动的夹紧位置上保持弹簧臂151。 When the sharp tip 32 of the insertion needle 31 is positioned distally of the needle shield 40, the insertion needle 31 abuts the spring arm 151, in order to maintain the spring biased arm 151, non-actuated clamping position. 弹簧臂151包括一夹子臂152,它大致平行于插入器针31的纵向轴线延伸。 The spring arm 151 comprises a clamp arm 152, which is generally parallel to the longitudinal axis of the insertion needle 31 extends. 夹子臂152最好具有一形成在其上的指形物153,当弹簧臂151处于夹紧的位置时,它适合接合形成在导管套节24上的螺纹44或相应的制动件26。 Clip arm 152 preferably has formed thereon a finger 153, spring arm 151 when in the clamped position, it is adapted to engage threads formed on the hub 24 of the catheter 44 or a corresponding stopper 26. 制动件26可以是显露在导管套节24的近端上的突缘或路厄锁定耳。 The brake member 26 may be exposed on the proximal end of catheter hub 24 or the flange luer lock lug. 或者,制动件26可呈一凹槽或凹槽,或一向上的桩的形式。 Alternatively, the brake member 26 may be in the form of a groove or grooves, or always on the pile. 尽管由于它提供了其间可靠的机械接合,所以首选使用指形物153和制动件26,但这些元件并不是必要的。 Although because it provides a reliable mechanical engagement therebetween, it is preferred to use finger 153 and the brake member 26, these elements are not necessary. 没有任何制动件,夹子臂152和导管套节24之间的接合力就限于摩擦力,较之机械接合,摩擦力可更易于克服。 No brake member, the bonding force between the clip arm 24 and the catheter hub 152 to limited friction, than mechanical engagement, a frictional force can be overcome more easily. 然而,在某些情形下,这种摩擦力可以是足够的。 However, in some cases, this friction may be sufficient.

当插入器针31的锋利的末端32近侧向地移入针罩40,从而插入器针31不再邻接弹簧臂151时,弹簧臂151可弯向它的非偏置的、致动的非夹紧位置并脱开与导管套节24的接合。 The proximal end 32 when the sharp needle 31 is inserted radially into the needle shield 40, so that the insertion needle 31 no longer abuts when the spring arm 151, the spring arm 151 can be bent to its non-biased, non-actuated clamp wound position and disengaged from the catheter hub 24. 这使导管套节24与针罩40脱开。 This allows the catheter hub 24 and needle cover 40 is disengaged. 弹簧臂151可包括一纵向延伸的标记158,当插入器针31近侧向地移入针罩40时,如果有的话,它将插入器针31和直径放大部分38上的曳力减到最小。 The spring arm 151 may comprise a longitudinally extending mark 158, when the needle 31 is inserted proximally into needle shield 40 circumferentially, if any, it inserts needle 31 and the drag force on the enlarged diameter portion 38 is minimized . 此外,弹簧臂151可包括一从其延伸的臂53,且臂在其中形成一开口。 Further, the spring arms 151 may include an arm 53 extending therefrom, and the arm in an opening formed therein. 在一实施例中,臂53还包括一纵向延伸的导向轨51,它引导插入器针31朝向开口52。 In one embodiment, the arm 53 further includes a longitudinally extending guide rail 51, which is inserted into the guide needle 31 towards the opening 52. 参见图36B。 See Figure 36B. 开口52的直径略大于插入器针31的主体部分的直径,但小于直径放大部分38的直径。 Diameter of the opening 52 is slightly larger than the diameter of the insertion needle 31 of the body portion, but smaller than the diameter 38 of the enlarged diameter portion. 因此弹簧夹子151可以图19-21所示片簧700同样的方式阻止插入器针31的不希望的远侧运动。 Thus the spring clip 151 illustrated in the same manner as 19-21 in FIG spring 700 may prevent undesired insertion needle 31 distally. 在另一替代的实施例中,作为取代可使用一退拨的开口54。 In another alternative embodiment, the opening 54 may be used as a substituent a dialed back. 参见图36。 36 Referring to FIG. 对于开口54所要求的只在于,形成一允许插入器针31的主体部分延伸通过其间的部分,并形成一不允许直径放大部分38在其间通过的部分。 For the opening 54 is only required that the body portion is formed to allow a needle 31 inserted through the portion extending therebetween, and is formed in a portion therebetween is not allowed by the enlarged diameter portion 38.

应该理解下文中讨论的弹性的弹簧夹子的各种实施例可连同上述锁定件实施例中任何一个共同使用,一旦锋利的末端32近侧向地撤进针罩40,上述锁定件阻止插入器针31的锋利的末端32走出针罩40的远端的不希望的远侧运动。 It should be understood that the elastic spring clip discussed below in conjunction with various embodiments of the lock member may be any one commonly used embodiment embodiment, once the sharp end of needle 32 proximal withdrawal circumferentially cover 40, the lock member prevents insertion needle sharp tip 31 of needle shield 32 out unwanted distal movement of the distal end 40. 弹性的弹簧夹子最好由不锈钢形成。 Resilient spring clip is preferably formed from stainless steel. 然而,还应予以理解的是,其它弹性的强度大的材料也可用来形成弹性的弹簧夹子。 However, it should also be appreciated that other resilient material of a large strength may also be used to form the elastic spring clip.

如上所述,弹簧臂151的V形结构保证其能在夹住(即偏置和非致动的位置)与非夹住(即非偏置和致动的位置)之间弯曲。 As described above, V-shaped configuration of the spring arms 151 bend to ensure its clamped (i.e., bias and non-actuated position) and the non-clamped (i.e., non-actuated position and offset) between. 在非致动的位置,指形物153定位进入与导管套节24的接合。 In the non-actuated position, engaging means 24 into the shaped material 153 positioned with the catheter hub. 参见图34。 34 Referring to FIG. 在致动的位置,指形物153未与导管套节24接合。 In the actuated position, fingers 153 are not engaged with the catheter hub 24. 参见图35。 See Figure 35. 较佳地,外壳41形成一横向于插入器针31的纵向轴线延伸的斜坡159。 Preferably, the housing 41 forms a ramp 159 transverse to the longitudinal axis of the insertion needle 31 extends. 参见图38和39。 Referring to FIGS. 38 and 39. 斜坡159位于外壳41内,以使它接合夹子臂152。 Ramp 159 within the housing 41, so that it engages the clip arm 152. 斜坡159用作夹子臂152的一导向件,以保证夹子臂152和指形物153不在导管套节24周围转动,但一旦锋利的末端31脱离与导管套节24的接合撤回到弹簧臂151的近侧,它们横向于插入器针31的纵向轴线移动。 Clip arm ramp 159 as a guide member 152 to ensure that the clamp arm 152 is rotated around the fingers 153 and not catheter hub 24, but once the sharp end 31 to withdraw from engagement with the catheter hub 24 to the spring arm 151 proximally, which moves transverse to the longitudinal axis of the insertion needle 31. 尽管弹簧夹子1201的这种V形结构是优选的,但也可使用许多不同的结构。 While the spring clip 1201 of this V-shaped configuration is preferred, many different configurations may be used. 所要求的只是其取向应允许弹簧臂151弯曲,以使夹子臂152和指形物153能移动进入与导管套节24的接合,且能移动到致动位置,脱开与导管套节24的接合。 The alignment required is that which should allow the spring arm 151 is bent so that the clip arm 152 and fingers 153 can be moved into engagement with the catheter hub 24, and can move to the actuated position, disengaging the catheter hub 24 engagement.

一带有横向阻挡件的弹簧夹子1211的第一实施例可参见图40和41。 A spring clip with a transverse blocking member 1211 to the first embodiment of FIGS. 40 and 41 can be found. 弹簧夹子1211由弹簧臂191和夹子臂192组成。 The spring clip 1211 by the spring arms 191 and 192. The clip arm. 在本实施例中,弹簧臂191是一弹性的、基本上直而不弯曲的零件。 In the present embodiment, the spring arm 191 is a resilient, substantially straight without bending parts. 夹子臂192形成一孔195,插入器针31通过该孔延伸。 Clip arm 192 is formed a hole 195, the insertion needle 31 extends through the aperture. 弹簧臂191取向基本上垂直于插入器针31,这样,弹簧臂191的端部固定在外壳41上。 Spring arms 191 oriented substantially perpendicular to the insertion needle 31, so that the end portion of the spring arm 191 is fixed to the housing 41. 因此,在非偏置,即致动的非夹住的位置上,孔195纵向不与插入器针31对齐。 Thus, a non-clamped position in the non-biased, i.e. actuated, the longitudinal hole 195 is not aligned with the insertion needle 31. 参见图41。 41 Referring to FIG. 尽管图中示出插入器针31位于弹簧臂191上方,但应该理解插入器针31也可位于弹簧臂191下方,以及弹簧臂191位于外壳41内,这样,它以任何方向跨过与插入器针31的纵向轴线同心的一圆上的直径延伸。 Although FIG. 31 shows the insertion needle is located above the spring arms 191, it should be understood that the insertion needle 31 may be located below the spring arm 191, and a spring arm 191 is located within the housing 41 such that it is inserted across any direction the diameter of a circle extending in the longitudinal axis of the needle 31 concentrically. 当插入器针31延伸通过孔195并通过针罩40的远端进入导管套节24时,弹簧臂191邻接插入器针31,并脱开与导管套节24的接合而被阻止运动。 When the insertion needle 31 extends through the aperture 195 and through the distal end of the needle shield 40 into the catheter hub 24, the spring arm 191 abuts the insertion needle 31, and disengaged from the engaging catheter hub 24 is prevented from moving. 参见图40。 See Figure 40. 夹子臂192最好垂直于弹簧臂191延伸且包括形成在其上的一指形物193。 Clip arm 192 preferably extends perpendicular to the spring arm 191 and comprises a finger which is formed on the object 193. 此外,导管套节还包括一用于与指形物193接合的制动件26。 In addition, the catheter hub further comprises a brake member 26 for the finger-shaped object 193 engaged. 如上所述,制动件26可以是在导管套节24的近端上的一突缘或路厄锁定耳。 As described above, the brake member 26 may be a flange or luer on the proximal end of the catheter hub 24 of the locking lugs. 或者,制动件26可取一凹槽或凹槽,或一向上的桩的形式。 Alternatively, the brake member 26 preferably a groove or grooves is or has been in form pile. 当插入器针31延伸通过弹簧臂191时,指形物193接合在导管套节24上的一制动件26,以最大程度增大夹子臂192和导管套节24之间的固位力。 When the insertion needle 31 extends through the spring arms 191, 193 engage fingers in the catheter hub 24 of a brake member 26 to increase the maximum extent between the retentive force clip arm 192 and the catheter hub 24. 因此,只要插入器针31远侧向地延伸通过弹簧臂191,夹子臂192和制动件26仍然接合,于是导管套节24保持与针罩40的连接。 Thus, as long as the insertion needle 31 extending distally circumferentially by the spring arms 191, 192 clip arm 26 remains engaged and the brake member, thus holding the catheter hub 24 and needle cover 40 is connected. 一旦插入器针31的锋利的末端32近侧向地撤回通过弹簧臂191,夹子臂192返回到它的致动的、非偏置的非夹紧的位置,这样,指形物193能脱开与制动件26的接合而运动。 Once the proximal end 32 of the sharp needle 31 is inserted through the spring arms 191 circumferentially withdrawn, clip arm 192 returns to its actuated unclamp non-biased position such that the fingers 193 can be detachably and engaging the brake member 26 moves. 这使导管套节24与针罩40分离。 This allows the catheter hub 24 and needle shield 40 separated.

本实施例的弹簧夹子1211还包括一横向阻挡件196,它垂直于一弹簧臂191的下面而延伸,以阻止插入器针31的不希望的远侧运动。 The spring clip 1211 further embodiment comprises a transverse barrier member 196, which extends perpendicularly to the following a spring arm 191 to prevent undesired insertion needle 31 distally. 因此,当锋利的末端32近侧向地移动通过弹簧臂191,横向阻挡件196用作一接合插入器针31的锋利的末端32的有效的阻挡件,以阻止插入器针31的不希望的远侧运动。 Thus, when the sharp tip 32 moves radially 191 proximally, the transverse member 196 is blocked by the spring arms engage the inserted needle as a sharp distal end 31 of the stopper member 32 is effective to prevent the insertion needle 31 is not desirable distally. 应用此种实施例,在插入器针31上无需不连续部分38,且可使用一系链50来阻止插入器针31的不希望的近侧运动。 Application of such an embodiment, no discontinuous portion 38 in the insertion needle 31, and a tether 50 can be used to prevent undesired insertion needle 31 proximally.

然而,如果需要的话,可在插入器针31上使用不连续部分38以阻止插入器针31的不希望的远侧运动。 However, if desired, be discontinuous in the insertion portion 38 is inserted into the needle 31 to prevent undesirable needle 31 distally. 在这种情形下,横向阻挡件196可使用其中的一开口199一起形成,开口199的直径小于直径放大部分38的直径。 In this case, the transverse barrier member 196 may be formed with an opening 199 therein using a diameter of the opening 199 is smaller than the diameter 38 of the enlarged diameter portion. 因而开口199类似于图19-21所示的片簧700那样,可阻止插入器针31的不希望的远侧运动。 Thus opening 199 similar to the plate spring 700 as shown in FIG. 19-21, prevents undesired insertion needle 31 distally. 的确,如果需要的话,本文所讨论的所有横向阻挡件可修改为包括在其中的一个不允许直径放大部分38通过其间的开口。 Indeed, if desired, all transverse obstruction discussed herein may be modified to include a diametrically enlarged portion 38 which is not allowed by the opening therebetween.

尽管前述的弹簧夹子的实施例接合导管套节24的外部,但应该理解弹簧夹子和插入器针31可设置成弹簧夹子接合导管套节24的内部。 Although the embodiment of the spring clip engages the outside of the catheter hub 24, it should be appreciated that the spring clip 31 and the insertion needle may be arranged to engage the spring clip 24 of the catheter hub interior. 例如,弹簧夹子相对于插入器针31可以这样设置:插入器针31径向向外推动锁定臂。 For example, the spring clip relative to the insertion needle 31 can be set up: the insertion needle push the lock arm 31 radially outwardly. 一旦插入器针31的锋利的末端32近侧向地移动通过诸弹簧臂,它们返回到其非偏置的位置并向朝向针罩40的纵向轴线移动锁定臂。 Once the proximal end 32 of the sharp needle 31 is inserted through the various spring arm moves circumferentially, they return to their non-biased position of the longitudinal axis of the locking arm 40 to move toward the needle shield.

图42至45示出了弹簧夹子1212的一第二实施例,夹子带有一横向阻挡件,它将导管套节24连接到针罩40,直到锋利的末端32锁定在针罩40内。 42 to 45 shows a spring clip 1212 to the second embodiment, the clip member having a transverse barrier, it will catheter hub 24 is connected to the needle hub 40, until the sharp tip 32 is locked in the needle shield 40. 本实施例的弹簧夹子1212除了添加的横向阻挡件296之外,基本上与图33至36C,38和39所示的弹簧夹子的实施例相同。 The spring clip 1212 embodiment except the added transverse barrier 296, is substantially the same as the embodiment of the spring clip 33 to 36C, 38 and 39 shown in FIG. 因此,弹簧夹子1212的本实施例起了连接导管套节24和针罩40的作用,直到锋利的末端32以与图33至36C,38和39所示的实施例相同的方式锁定在针罩40内。 Thus, the spring clip 1212 to the present embodiment plays a role in connecting the catheter hub 24 and needle cover 40 until to the embodiment shown in FIGS. 33 to 36C, 38 and 39 the same manner as the sharp tip 32 is locked in the needle shield 40 inside.

当插入器针31延伸通过针罩40,以使锋利的末端32位于远端开口45的远侧时,弹簧臂291邻接插入器针31的轴,且偏置而移动在锋利的末端32前面的横向阻挡件296。 When the insertion needle 31 extending through the needle cover 40, so that the sharp distal tip 32 is located at the distal opening 45, the spring arm 291 abuts the insertion needle shaft 31, and biased to move in front of the sharp tip 32 transverse obstruction 296. 一旦锋利的末端32近侧向地移动通过弹簧臂291,弹簧臂291移动到其致动的、非偏置的非夹紧的位置,这样横向阻挡件296位于锋利的末端32的前面。 Once the sharp proximal end 32 moves radially 291, spring arm 291 to move, non-biased position unclamp actuation thereof by spring arms, so that the transverse barrier is located in front of sharpened tip 296 of 32. 这阻止了插入器针31的任何不希望的远侧运动。 This prevents any unwanted distal movement of the inserter needle 31.

在使用横向阻挡件296的情形中,最好使用一系链50来将针罩连接于针套节34。 In the case of a transverse barrier member 296, it is preferable to use a tether 50 connecting the needle shield to the needle hub 34. 系链50阻止插入器针31相对于针罩40的不希望的近侧运动。 The tether 50 is inserted to prevent proximal movement of needle 31 with respect to undesirable needle shield 40. 系链50可采取多种不同的形式,例如,一线,一打褶元件,一围绕插入器针31的套筒件或多个围绕插入器针31的伸缩元件。 The tether 50 can take many different forms, e.g., a line, a pleated member, a sleeve member around the insertion needle or a plurality of telescoping elements 31 around the insertion needle 31. 或者,在使用横向阻挡件296的情形中,插入器针31的不希望的近侧运动可以上述的实施例相同的方式给以阻止。 Alternatively, in the case of a transverse barrier member 296, the insertion needle 31 unwanted proximal movement may be the same manner as the above-described embodiments given stop. 这样,插入器针31可与直径放大部分38一起形成,而直径放大部分将邻接近端开口43或垫圈49。 Thus, the insertion needle 31 with an enlarged diameter portion 38 may be formed together with an enlarged diameter portion adjacent to the proximal end of the opening 43 or gasket 49.

在插入器针31上使用直径放大部分38的情形中,弹簧夹子1212可如图36B或36C所示那样形成。 Diameter in the case of using the insertion needle 31 of an enlarged portion 38, the spring clip 1212 in FIG. 36B or 36C may be formed as shown in FIG. 如上所述,在这些实施例中,弹簧夹子与一臂53一起形成,该臂从夹子延伸,同样地延伸到横向阻挡件296。 As described above, in these embodiments, the spring clip 53 is formed together with the arm, the arm extending from the clip, likewise extending transverse to the blocking member 296. 然而,臂53在其中形成一开口52或54。 However, arm 53 is formed therein an opening 52 or 54. 开口54从一较大直径部分向一较小直径部分渐缩。 The opening 54 tapers from a larger diameter portion to a smaller diameter portion. 在两种情形中,开口52和54形成一其直径小于直径放大部分38的直径的部分。 In both cases, the openings 52 and 54 formed in a diameter smaller than the diameter of enlarged diameter portion 38 of the part. 因此,在弹簧夹子1212移入非夹紧位置之后,开口52和54将大致与插入器针31对齐。 Thus, after the spring clip 1212 into the non-clamping position, the openings 52 and 54, 31 aligned generally with the insertion needle. 然而,由于开口52和54的直径较小的部分将阻止直径放大部分38通过其间,所以将阻止插入器针31的不希望的远侧运动。 However, due to the small diameter portion 52 and the opening 54 will prevent enlarged diameter portion 38 therethrough, so that the insertion needle to prevent unwanted distal movement 31. 同样地,如图45的实施例所示的开口199可与直径放大部分38合作,以阻止插入器针31的不希望的远侧运动。 Likewise, the opening 45 of the embodiment shown in FIG. 199 may cooperate with the enlarged diameter portion 38, to prevent undesired insertion needle 31 distally.

图46至49示出了一一体的夹子锁定件1221的第一实施例,该锁定件将针罩40连接到导管套节24,且阻止插入器针31的锋利的末端32的不希望的远侧运动。 FIGS 46 to 49 illustrate a locking member integrally clip 1221 of the first embodiment, the locking member 40 is connected to the catheter hub to the needle shield 24, and prevents the insertion of a sharp needle distal end 31 of the undesired 32 distally. 在本实施例中,一体的夹子锁定件1221与一弹簧臂2191一起形成,弹簧臂2191是带有两腿2192的基本U形的结构,其中,腿2192的基部形成为如图37A所示的固位板。 In the present embodiment, the locking clip member 1221 integrally formed with a spring arms 2191, 2191 of the spring arms are substantially U-shaped configuration having two legs 2192, wherein the legs of the base 2192 is formed as shown in FIG. 37A retention plate. 弹簧臂2191构造成向外偏置并能弯曲到实现与导管套节24接合或脱开。 2191 configured to bias the spring arms and can flex outwardly to engage or disengage achieved with the catheter hub 24. 弹簧臂2191最好定位在外壳41内,这样,U形的基部朝向针罩40的近端部分,诸腿2192朝向基本平行于插入器针31的纵向轴线。 Spring arm 2191 is preferably positioned within the housing 41, so that, U-shaped base portion 40 toward the proximal portion of the needle shield, all substantially parallel to the legs 2192 toward the longitudinal axis of the insertion needle 31. 如其它实施例所讨论的,一体的夹子锁定件1221可具有一单腿和一大致L形的结构。 The other, as discussed in Example one embodiment of the clip member 1221 may have a locking leg and a substantially L-shaped configuration. 参见图55至57。 See Figure 55-57. 从每个腿2192径向向内延伸的是一偏置臂2193。 Extending radially inwardly from each leg 2192 is a biasing arms 2193. 在每个偏置臂2193中形成一孔2194,以允许插入器针31延伸通过其间。 A hole 2194 formed at each offset arm 2193 to allow the insertion needle 31 extending therethrough. 如果需要的话,一下垂物2199位于每个孔2194的附近,并大致平行于插入器针31延伸。 If desired, a hanging object 2199 is located in each aperture 2194 and substantially parallel to the insertion needle 31 extends. 这些下垂物2199可呈这样的形式:在偏置臂2193上的转弯端头或偏置臂2193上切出的下垂部分,切去该部分以形成孔2194。 The sagging was 2199 may be in the form: turning on the tip or the bias of the biasing arms 2193 of the arms 2193 of the drooping portion is cut out, the cut-away portion 2194 to form a hole. 随着插入器针通过孔2194近侧向地撤进针罩40,下垂物2199将插入器针31上的曳力减到最小。 As the needle is inserted through the hole 2194 circumferentially withdrawn proximally into the needle shield 40, the sag was 2199 drag on needle 31 is inserted is minimized.

此外,每个腿2192的远端部分形成一通过其间的孔2195。 Further, the distal end of each leg portion forming an aperture 2192 through 2195 therebetween. 孔2195适合接合形成在导管套节24的近端上的制动件26。 Bore 2195 adapted to engage the brake member 26 is formed on the proximal end 24 of the catheter hub. 如上所述,制动件26可具有任何合适的结构,每个腿2192的远端部分可同样地具有任何互补的结构,于是制动件26和每个腿2192的远端部分可接合。 As described above, the brake member 26 may have any suitable configuration, the distal end of each leg portion 2192 may likewise have any complementary configuration, then the brake member 26 and a distal portion of each leg 2192 may be engaged.

当插入器针31的锋利的末端32延伸通过针罩40的远端进入导管套节24时,插入器针31也延伸通过偏置臂2193的孔2194。 When the sharp tip 32 of the insertion needle 31 extending through the distal end of the needle shield 40 into the catheter hub 24, the insertion needle 31 extends through the aperture 2193 2194 biasing arms. 这拉动腿2192向内朝向导管套节24,于是孔2195接合制动件26。 This pulling inward toward the leg 2192 of the catheter hub 24, thus engaging the braking member 26 hole 2195. 只要插入器针31的锋利的末端32位于偏置臂2193的远侧,这使针罩40保持与导管套节24的连接。 Just insert a sharp needle tip 31 is located distally biasing arms 32 of 2193, which allows the needle cover 40 remains connected to the catheter hub 24. 一旦插入器针31被拉到偏置臂2193的近侧,腿2192自由地返回到其非偏置的、致动的非夹紧位置,其中孔2195不再接合制动件26。 Once inserted needle 31 is pulled proximally biased arm 2193, leg 2192 is free to return to its non-biased, non-actuated clamping position, wherein the apertures 2195 not engage the brake member 26. 因此,弹簧臂2191可弯曲达到与导管套节24的接合或脱开。 Thus, the spring arms may be flexed to 2191 engage or disengage the catheter hub 24.

在插入器针31上的不连续部分38与上述的近侧壁相互作用,以阻止插入器针31的不希望的近侧运动,与固位板1100相互作用,以阻止插入器针31的不希望的远侧运动。 Discontinuous portion 38 and the near side wall of the interaction on the inserter needle 31, the insertion needle to prevent unwanted proximal movement 31, 1100 to interact with the retention plate, not to prevent insertion of the needle 31 I hope distal movement.

或者,在要求从插入器针31略去不连续部分38的情形中,诸偏置臂之一可与一用作横向阻挡件的延伸部分一起形成。 Alternatively, in the case where the insertion needle claim 31 discontinuous portion 38 is omitted, one such bias may be formed with the arm as a lateral extension portion of the blocking member. 参见图50。 See Figure 50. 在弹簧夹子1213的第三实施例中,弹簧夹子具有一将导管套节24连接到针罩40的横向阻挡件396,直到锋利的末端32锁定在针罩40内,一旦锋利的末端32撤回到偏置臂393的近侧,横向阻挡件396阻止插入器针31其后的远侧运动。 In the third embodiment of the spring clip 1213, the spring clip having a catheter hub 24 is connected to a transverse pin 40 of the stopper member 396 cover until the sharp tip 32 is locked in the needle cover 40, once the sharp end 32 to withdrawal the proximal biasing arms 393, 396 of the distal transverse barrier 31 subsequent to prevent movement of the insertion needle. 此外,在本实施例中,须用一系链50来将针罩40和针套节34连接在一起,一旦锋利的末端32撤进针罩40内,以阻止插入器针31相对于针罩40的不希望的近侧运动。 Further, in the present embodiment, a tether 50 must be connected to the needle hub 40 and needle hub 34 together, once the sharp end of the needle shield 32 to withdraw 40, to prevent the insertion needle 31 with respect to the needle shield 40 unwanted proximal movement. 弹簧夹子1213的本实施例基本上以与图46-49中的前述实施例所示的一体的夹子锁定件1221的弹簧夹子部分相同的方式操作。 Spring clip 1213 to the present embodiment is substantially integral with the embodiment shown in the embodiment of FIGS 46-49 the same manner as the locking clip spring clip portion 1221 of the operating member.

正如前述的实施例一样,每个偏置臂393最好具有一位于孔394附近、大致与插入器针31平行延伸的下垂物399。 As same as the foregoing embodiment, each of the biasing arms 393 preferably has a hole 394 is located substantially parallel with the insertion needle extending sagging was 31 399. 随着插入器针近侧向地通过孔394撤进针罩40,诸下垂物399将在插入器针31上的曳力减到最小。 With the insertion needle is withdrawn proximally into the needle shield circumferentially through apertures 39 440, 399 will all drop was inserted into the drag force on the needle 31 is minimized.

图51至53示出了弹簧夹子1214的一第四实施例,夹子带有一将导管套节24连接到针罩40的横向阻挡件,直到锋利的末端32锁定在针罩40内。 FIGS. 51-53 illustrate a spring clip 1214 to the fourth embodiment, the clip having a catheter hub 24 is connected to the needle shield stopper member 40 laterally until the sharp tip 32 is locked in the needle shield 40. 弹簧夹子1214的本实施例以基本与图50所示的实施例相同的方式操作。 Spring clip 1214 of this embodiment in substantially the same manner as in Example 50 the operation shown in FIG. 唯一的区别在于,偏置臂493的端部与互锁的指形物497一起形成。 The only difference is that the arms 493 bias the end portion of the interlocking fingers 497 together form a shape thereof. 一旦插入器针31的锋利的末端32近侧向地撤到偏置臂493后面,这些指形物497便于每个偏置臂493互相锁定。 Once the proximal end 32 of the sharp needle 31 is inserted into the back of the biasing arms 493 circumferentially evacuated, these fingers 497 to facilitate each offset arm 493 interlocked. 较佳地,这些偏置臂493之一包括从那偏置臂的端部延伸的两个分离的指形物497,而另一个偏置臂包括从其延伸的一个指形物497。 Preferably, one of the biasing arms 493 includes two end portions offset from that of the arm extending fingers 497 separated, while the other comprises biasing arms extending therefrom a finger 497 thereof. 一个指形物适合通过由在第一偏置臂上的两指形物建立的空间延伸,两个指形物延伸进入在第二偏置臂上一个指形物两边上的空间。 A finger adapted to extend through the two finger-shaped space of the first biasing arm was established two fingers extend into the second arm a biasing means was shaped space on both sides. 当插入器针31不再接合偏置臂493时,偏置臂493的端部移动分开,于是指形物497可延伸入它们相应的空间,并与互相间合适的部分以及偏置臂493重迭。 When the insertion needle 31 no longer engages the biasing arm 493, the end portion 493 of the biasing arms move apart, so the fingers 497 may extend into their respective spaces between each other and with suitable biasing arms 493 weight portions and Diego. 随着偏置臂493通过互锁指形物497因而锁定在一起,一横向阻挡件由此由互锁指形物497而形成,以阻止插入器针31不希望的远侧运动。 With the biasing arms 493 thus formed was locked together by interlocking means 497, whereby a transverse barrier is formed by interlocking fingers 497, the insertion needle 31 to prevent unwanted distal movement.

图54示出了一体的夹子锁定件1222的一第二实施例,该锁定件将针罩40连接到导管套节24,直到插入器针31的锋利的末端32在针罩40内,且该锁定件阻止插入器针31的不希望的远侧运动。 FIG 54 shows one of the locking clip embodiment of a second embodiment of member 1222, the locking member 40 is connected to the catheter hub to the needle hub 24, until the sharp tip 31 of needle 32 is inserted in the needle cover 40, and the the locking member to prevent undesired insertion needle 31 distal movement. 本实施例基本上与图46至49所示的一体的夹子锁定件1221的实施例相同,唯一除外的是,在本实施例中,提供一将插入器针31上的曳力减到最小的机构。 The present embodiment is substantially integral with the lock shown in FIGS. 46 to 49 of the clip member 1221 is the same as the embodiment, the only exception that, in the present embodiment, there is provided a drag force on the needle 31 is inserted is minimized mechanism. 在本实施例中,诸孔2294借助一延伸通过形成在偏置臂2293内的分离的孔的销2280保持对齐。 In the present embodiment, the holes 2294 a means 2280 extends through aligned apertures in the retaining pin is formed in a separate biasing arms 2293. 该销和孔的结构保持诸孔对齐,而诸孔的边缘不与插入器针31的轴接触。 The structure and the pin hole aligned with the holes of the holder, and the edge of the holes does not contact with the shaft 31 of the insertion needle. 一系绳2285连接销2280和针套节34。 A tether 2285 connected to pin 2280 and needle hub 34. 系绳2285具有这样的长度:当插入器针31完成近侧向移动,于是插入器针31的锋利的末端32位于偏置臂2293的近侧时,系绳2285将销2280近侧向地拉出偏置臂2293。 The tether has a length of 2285: when the insertion needle 31 near the lateral movement is completed, so the sharp tip 32 of the insertion needle 31 is proximal biasing arms 2293, 2285 of the tether to pull the pin 2280 proximally radially a biasing arms 2293. 在那点上,偏置臂2293可向外移动而脱开与导管套节24的接合。 At that point, the arm 2293 may be offset outwardly movable engagement with the catheter hub 24.

图55至57示出了一体的夹子锁定件1223的一第三实施例。 FIGS. 55-57 illustrate one locking clip member 1223 to a third embodiment. 在一体的夹子锁定件1223的实施例中,弹性的弹簧臂2391与唯一的腿2392一起形成,这样它具有一大致的L形结构。 In one embodiment of the clamp locking member 1223, the resilient spring arms 2391 are formed together with the leg 2392 only, so that it has a substantially L-shaped structure. 弹簧臂2391最好定位在外壳41内,这样基部朝向外壳41的近端部分且腿2392沿大致平行于插入器针31的纵向轴线方向延伸。 Spring arm 2391 is preferably positioned within the housing 41, so that the base portion toward the proximal end portion of the housing 41 and is substantially parallel to the leg 2392 along a longitudinal axis of the insertion needle 31 extends. 在仅有一条腿2392的情况下,需要使用唯一的偏置臂2393。 In the case where only one leg 2392, requires a unique biasing arms 2393. 偏置臂2393其中形成一孔,插入器针31通过该孔延伸。 Biasing arms 2393 formed therein an aperture, the insertion needle 31 extends through the aperture. 这个弹簧臂2391的实施例以与图46至49所示的实施例相同的方式操作,且腿2392的远端部分可具有与腿2192相同的结构。 This embodiment of the spring arms in the same manner as in Example 2391 Example 46 to 49 shown in FIG operation, and the distal end of the leg portion 2392 may have the same structure as legs 2192. 当插入器针31通过偏置臂2393上的孔延伸时,只要插入器针31的锋利的末端32位于偏置臂2393的远侧,腿2392则向内拖动并与导管套节24接合。 When the needle is inserted into the hole 31 extending through the biasing arms 2393, as long as the sharp tip 32 of the insertion needle 31 is located distally of the biasing arms 2393, 2392 legs inwardly and engaged with the drag the catheter hub 24. 一旦插入器针31拉到偏置臂2393的近侧,腿2392则自由地返回到其致动的、非偏置的非夹紧位置。 Once inserted needle 31 is pulled proximally biasing arms 2393 and leg 2392 is free to return to its actuated, non-biased non-clamping position. 因此弹簧臂2391可弯曲达到与导管套节24的接合或脱开。 Thus 2391 may be a curved spring arms reach and engage or disengage the catheter hub 24.

图58示出了带有一横向阻挡件596的弹簧夹子1215的一第五实施例,在本实施例中,弹簧臂591与唯一的腿592一起形成,这样它具有一大致L形的结构。 FIG 58 shows a fifth embodiment with a transverse blocking member 596 of the spring clip 1215, embodiment, the spring arm 591 is formed with only the leg 592 in the present embodiment, so that it has a generally L-shaped configuration. 在仅有一条腿592的情况下,使用唯一的单偏置臂593。 In the case where only one leg 592, using only a single biasing arms 593. 该单偏置臂593与用作一横向阻挡件596的一延伸部分一起形成,一旦锋利的末端32撤回到偏置臂593的近侧,将阻止插入器针31其后的远侧运动。 The single biasing arms 593 serving as a lateral extension of a barrier member 596 together form, once the sharp tip 32 to the bias arm 593 to withdraw proximally, preventing distal movement of the needle 31 is inserted thereafter. 弹簧夹子1215的本实施例以基本与图55-57所示的一体的夹子锁定件1223的弹簧夹子部分相同的方式操作。 Spring clip 1215 of this embodiment shown substantially integrally with the locking members 55-57 in the same manner the clip spring clip portion 1223 of the operation.

图59至61示出了带有一横向阻挡件的弹簧夹子1216的一第六实施例。 FIGS. 59-61 illustrate a sixth embodiment of a spring clip with a transverse blocking member 1216. 在本实施例中,弹簧夹子1216与一对交叉的腿692一起形成以提供一大致X形的结构。 In the present embodiment, the spring clip 1216 is formed to provide a substantially X-shaped configuration with a pair of legs 692 intersect. 弹簧夹子1216最好定位在外壳41内,以使基部691朝向外壳41的近端部分。 The spring clip 1216 is preferably positioned within the housing 41, so that the base portion 691 toward the proximal end portion of the housing 41. 每个腿692其中形成一切去的部分或开口694。 Wherein each leg 692 is formed a cut-out portion or opening 694. 这些切去部分694允许插入器针31通过其间延伸且提供一使腿692相互交叉的机构。 The cut-away portion 694 allows the insertion needle 31 extending therethrough and providing a mechanism for a leg 692 intersecting each other. 每个腿692的远端部分向内偏置并形成一桩690。 The distal end portion of each leg 692 is formed an inwardly biased and 690. 桩690适合与形成在导管套节24内部上的制动件26接合。 Pile 690 adapted to engage the brake member 26 is formed on the interior of the catheter hub 24. 当插入器针31延伸通过针罩40的远端并进入导管套节24时,插入器针31也延伸通过切去的部分694。 When the insertion needle 31 extending through the distal end of the needle shield 40 and into the catheter hub 24, needle 31 is inserted through the cut-out portion 694 extends. 这推动腿692向外朝向导管套节24,于是桩690接合制动件26。 This pushes the leg 692 outwardly toward the catheter hub 24, thus engaging the braking member 690 piles 26. 这保持针罩40与导管套节24的连接。 This holder 40 is connected to the needle hub 24 of the catheter hub. 一旦插入器针31拉向切去部分694的近侧,诸腿则自由地返回到其向内的、非偏置的、非夹紧的位置,其中桩690不再接合制动件26。 Once inserted needle 31 is pulled toward the proximal portion 694 of the cut-out, all the legs is free to return to its inward, non-biased, non-clamping position in which the piles 690 no longer engage the brake member 26. 因此弹簧夹子1216可弯曲达到与导管套节24的接合或脱开。 Thus the spring clip 1216 may be flexed to the catheter hub 24 is engaged or disengaged.

使用一系链50连同弹簧夹子1216以阻止插入器针31的不希望的近侧的移动。 Using a tether 50 along with the spring clip 1216 to prevent unwanted proximal movement of the needle 31 is inserted. 或者,弹簧夹子1216的近侧壁691可形成为如图37A所示的固位板。 Alternatively, the spring clip proximal wall 6911216 retention plate may be formed as shown in FIG. 37A. 因此,插入器针31可与直径放大部分38一起形成并以上述的方式与固位板合作以阻止插入器针31的不希望的远侧运动。 Accordingly, the insertion needle 31 with an enlarged diameter portion 38 may be formed in the manner described above and, together with the retention plate cooperate to prevent undesired insertion needle 31 distally.

如上所述,在所有的上述实施例中与导管套节24以及制动件26接合的弹簧夹子的部分的结构可具有各种各样的结构。 As described above, the structure of the catheter hub 24 and the spring clip 26 engages the detent portion may have various structures in all of the above-described embodiments. 例如,制动件26可取一凹槽的形式且一径向向内延伸的指形物可设置在弹簧夹子与制动件26接合的部分上。 For example, the brake member 26 preferably in the form of a groove and a radially inwardly extending fingers may be provided on a portion of the spring clip 26 engages the brake member. 参见图62。 62 Referring to FIG. 或者,制动件26可取一柱的形式,它可以是矩形或其它几何形状,而可以是敞开终端的孔,可形成在与制动件26接合的弹簧夹子的部分上。 Alternatively, a desirable form of the stopper column 26, which may be rectangular or other geometric shapes, but may be a hole open terminal, may be formed on a portion of the spring clip 26 engages the brake member. 参见图63。 See Figure 63. 此外,在与插入器针31接合的偏置臂上孔的结构可以是如图64和65所示的敞开的终端的。 In the configuration of the offset arm engaged with the insertion hole 31 may be a needle and an open end 64 as shown in FIG 65.

图66至69示出了将针罩40连接到导管套节24上的弹簧夹子1202的第二实施例。 FIGS. 66-69 illustrate a second embodiment of the needle shield 40 is connected to the spring clip 24 of the catheter hub 1202. 在本实施例中,弹簧夹子1202形成为与图37所示的固位板1100分离的薄片。 In the present embodiment, the spring clip 1202 is formed as a separate retention plate 1100 shown in FIG. 37 a sheet. 弹簧夹子1202与弹簧臂251和一对向外偏置的夹子臂252一起形成。 1202 spring clip with the spring arms 251 and a pair of biasing together form a clip arm 252 outwardly. 弹簧臂251定位在外壳41内,以使U形腿跨在插入器针31的纵向轴线上。 Spring arms 251 positioned within the housing 41, so that the U-legs straddling the longitudinal axis of the needle 31 is inserted. 较佳地,U形的封闭部分取向朝外壳的顶部。 Preferably, U-shaped closing portion oriented toward the top of the housing. 然而,应该理解弹簧臂251可在同一平面内的任何转动方向,该平面是作为与插入器针31的纵向轴线同心的一个圆。 However, it should be understood that the spring 251 may be in any direction of rotation of the arm in the same plane, which plane is concentric with a longitudinal axis of the insertion needle 31 of a circle. 每个夹子臂252大致平行于插入器针31的纵向轴线延伸。 Each clip arm 252 extends generally parallel to the longitudinal axis of the insertion needle 31. 当然,应该理解仅需使用一个夹子臂252。 Of course, it should be understood that the use of only one clip arm 252. 一偏置臂253从弹簧臂25 1的每端部延伸。 A biasing arm 253 extending from each end of the spring arm 251. 偏置臂253大致垂直于弹簧臂251和插入器针31的纵向轴线。 Biasing arms 253 spring arm 251 is substantially perpendicular to the needle insertion and the longitudinal axis 31. 每个偏置臂253其中形成一孔254以允许插入器针31延伸通过。 Wherein each offset arm 253 is formed a hole 254 to allow the insertion needle 31 extends through. 每个夹子臂252靠近其远端形成一孔255。 Each clip arm 252 near its distal end a bore 255 is formed. 孔255适合与形成在导管套节24的近端上的制动件接合。 Hole 255 for engagement with the brake member is formed on the proximal end 24 of the catheter hub. 当插入器针31延伸通过针罩40的远端进入导管套节24时,插入器针31也延伸通过孔254。 When the insertion needle 31 extends through the distal end of the needle shield 40 into the catheter hub 24, needle 31 is inserted through the aperture 254 extends. 这将两个偏置臂253拉拢在一起并因此拉动夹子臂252向内朝向导管套节24,于是孔255接合制动件26。 This will draw together two biasing arms 253 and thus pull the clip arm 252 inwardly toward the catheter hub 24, thus engaging the stopper bore 255 26. 这保持针罩40和导管套节24的连接。 This keeps the connecting needle shield 40 and catheter hub 24. 一旦插入器针31拉到偏置臂253的近侧,弹簧臂251返回到其非偏置的非夹紧的位置,其中夹子臂252从导管套节24中释放,这样孔255不再接合制动件26。 Once inserted needle 31 is pulled proximally biasing arms 253 of spring arms 251 return to their non-biased unclamp position in which the clip arms 252 are released from the catheter hub 24, so that the hole 255 is no longer engaged, Ltd. part 26. 当然,如上所述,夹子臂252的远端和制动件26的结构可以改变。 Of course, the structure described above, the distal end of the clip arm 26 and the brake member 252 may be changed. 例如,制动件26可以是矩形或具有其它的几何形。 For example, the brake member 26 may be rectangular or have other geometrical form. 或者,制动件26可以是一凹槽,而一径向向内延伸的指形物可设置在夹子臂252的远端上以机械地接合制动件26。 Alternatively, the brake member 26 may be a recess, and a radially inwardly extending fingers may be provided on the distal end of the clip arm 252 to mechanically engage the brake member 26. 固位板1100的操作与上述的图37的实施例相同。 Retention plate 1100 is same as the above operation of the embodiment of FIG. 37.

图70至73示出了带有横向阻挡件的弹簧夹子1217的一第七实施例,一旦插入器针31的锋利的末端32近侧向地撤进针罩40,横向阻挡件阻止插入器针31的不希望的远侧运动。 FIGS. 70-73 illustrate a spring clip with a transverse blocking member 1217 of the seventh embodiment, once the sharp proximal end 32 of the insertion needle 31 into the needle cover 40 withdrawn radially, transverse obstruction prevents the insertion needle unwanted distal movement of the 31's. 在本实施例中,不需要在插入器针31上的直径放大部分38。 In the present embodiment, it is unnecessary insertion needle 31 of an enlarged diameter portion 38. 取而代之,弹簧夹子1217包括一横向阻挡件796,它接合插入器针31的锋利的末端32从而阻止插入器针31的不希望的远侧运动。 Alternatively, the spring clip 1217 includes a transverse obstruction 796, it engages the sharp tip 32 of the insertion needle 31 to prevent undesired insertion needle 31 distally. 当插入器针31延伸通过针罩40,这样,锋利的末端32位于远端开口45的远侧,插入器针31也延伸通过孔794。 When the insertion needle 31 extends through the needle cover 40 so that sharp distal tip 32 at the distal end opening 45, the insertion needle 31 extends through the aperture 794. 这将偏置臂798拉拢在一起,并因此拉动夹子臂792靠近导管套节24。 This will draw together the biasing arms 798, 792 and thus pull the clip arm 24 close to the catheter hub. 一旦锋利的末端32近侧向地移到孔794之后,弹簧臂791移到其非偏置的、非夹紧的位置,这样,横向阻挡件796位于锋利的末端32之前。 Once the sharp tip 32 to move radially proximal aperture 794, spring arm 791 is moved to its non-biased, non-clamped position such that, before the sharp tip 32 positioned 796 transverse barrier. 这阻止了插入器针其后的任何不希望的远侧运动。 This prevents any unwanted distal movement of the inserter needle thereafter. 当然,偏置臂798可与在图51至53的实施例中公开的互锁指形物一起形成。 Of course, the biasing arm 798 may refer interlocking disclosed in the embodiment of FIGS. 51 to 53 together form the shape thereof.

使用系链50将针罩40连接到针套节34,可阻止插入器针31相对于针罩40的不希望的近侧的移动。 50 using a tether 40 connecting the needle shield to the needle hub 34, prevents movement of the insertion needle 31 with respect to undesirable needle cover 40 proximally. 如上所述,系链50可取多种不同的形式,例如一线,一打褶元件,一围绕插入器针31的套筒件或多个围绕插入器针31的伸缩式元件。 As described above, the tether 50 is desirable in many different forms, such as line, a pleated member, surrounding a telescopic element 31 is inserted into the needle around the insertion needle sleeve member 31 or more.

图74和75示出了带有一横向阻挡件的弹簧夹子1218的一第八实施例,它连接针罩40和导管套节24,直到锋利的末端32被保护在针罩40内。 74 and 75 illustrate an eighth embodiment of a spring clip with a transverse blocking member 1218, which connects the needle shield 40 and catheter hub 24 until the sharp end of the needle 32 is protected within the shroud 40. 在本实施例中,弹簧夹子1218包括一可枢转地连接在针罩40上的夹子臂892。 In the present embodiment, it comprises a spring clip 1218 may be pivotally connected to the needle cover 40 clip arm 892. 夹子臂892包括一用于机械接合导管套节24的突缘44的指形物899。 Clip arm 892 comprises a flange 24 for mechanically engaging a catheter hub fingers 44 to 899 thereof. 在弹簧夹子1218的第八实施例中,使用一带有与插入器针31的锋利的末端32接合的横向阻挡件896的片簧,来阻止插入器针31的不希望的远侧运动。 In the spring clip 1218 in the eighth embodiment, the use of unwanted distal movement with a leaf spring 32 with the transverse member 896 engages sharp needle distal end 31 is inserted into a barrier to prevent insertion of the needle 31. 在如图74所示的位置,通过横向阻挡件896的端部与插入器针31的轴的接合,横向阻挡件896保持在其向外的位置。 In the position shown in FIG. 74, the engagement end of the shaft 31 of the insertion needle 896 through the transverse barrier, the barrier remains in its transverse position of the member 896 outwardly. 这使弹簧夹子1218保持在夹紧的位置。 This allows the spring clip 1218 held in the clamping position. 当插入器针31缩回时,横向阻挡件896不再受插入器针31的轴的约束,因此向内移动。 31 when the insertion needle is retracted, the stopper member 896 is no longer constrained transverse shaft 31 is inserted into the receiving needle, thus moving inwardly. 在这个位置,横向阻挡件896位于锋利的末端32的远侧,且因此将插入器针31锁定在针罩40内。 In this position, the transverse obstruction 896 is located distally of the sharp tip 32, and hence the insertion needle 31 is locked in the needle shield 40. 由于横向阻挡件896不再将夹子臂892保持在该位置,所以它可转动脱开与导管套节24的接合。 Since the transverse obstruction 896 clip arm 892 will no longer be held in this position, it can be rotatably disengaged from the catheter hub 24. 参见图75。 See Figure 75. 因此,导管套节24可从针罩40移去。 Thus, the catheter hub 24 from needle shield 40 may be removed. 当然,应该理解,本实施例的弹簧夹子1218也能连同图19至21中公开的片簧一起使用。 Of course, it should be understood that the spring clip 1218 of this embodiment can also be used in conjunction with the leaf springs 19 to 21 disclosed. 所要求的只在于,一机构,它相对于导管套节24将夹子臂892转进和转出该位置。 The only requirement is that a mechanism which hub 24 relative to the catheter clip arm 892 will turn into and out of the position.

图76和77示出了弹簧夹子799的另一个实施例,该夹子将针罩40连接到导管套节24,直到锋利的末端32被保护在针罩40内。 76 and 77 illustrate another embodiment of the spring clip 799 embodiment, the clip 40 is connected to the catheter hub to the needle hub 24, until the sharp tip 32 is protected within the needle shield 40. 用来阻止插入器针31不希望的远侧运动的锁定件可以是图19至21所示的实施例。 The insertion needle 31 is used to prevent unwanted distal movement of the locking member illustrated embodiment may be 19 to 21 in FIG. 当插入器针31的锋利的末端32位于针罩40的远端的远侧时,锁定腿730接触并偏置于插入器针31,用作为一钩子的弹簧夹子799接合导管套节24的突缘44。 When sharp distal tip 32 at the distal end of the needle cover 40 of the insertion needle 31, and a locking contact leg 730 biased to the insertion needle 31, the engagement projections 24 of the catheter hub as a spring clip with a hook 799 edge 44. 参见图76。 See Figure 76. 随着插入器针31近侧向地撤回进针罩40,锁定腿730跨立在插入器针31的表面上。 With the needle 31 inserted radially withdrawn proximally into needle shield 40, the locking legs 730 straddle the upper surface 31 of the insertion needle. 锁定腿730可包括一朝向近侧或远侧的接片738,它接触插入器针31以将在插入器针31上的曳力减到最小。 730 may include a locking leg towards the proximal or distal to tab 738, it contacts the insertion needle 31 is inserted into the drag force on the needle 31 is minimized. 一旦插入器针31的锋利的末端32移到锁定腿730的近侧,片簧700返回到其非偏置的,即致动的、非夹紧的位置,这样开口735大致与插入器针31的纵向轴线对准。 Once inserted into the sharp tip 32 of needle 31 to move proximally locking legs 730, the leaf spring 700 returns to its unbiased, i.e. actuated, non-clamped position such that the opening 735 with the insertion needle 31 is substantially a longitudinal alignment axis. 在本实施例中,弹簧夹子799不再接合导管套节24的突缘44,这样,导管可从针罩40脱开。 In the present embodiment, the spring clip 799 no longer engages the flange 44 of catheter hub 24 so that the catheter 40 can be disengaged from the needle shield. 参见图77。 77 Referring to FIG. 如果插入器针31此后相对于针罩40远侧向移动,则插入器针31的锋利的末端32延伸通过开口735,直到直径放大部分38接合开口735。 Thereafter, if the insertion needle 31 with respect to the needle shield 40 distally to move the insertion needle 31 is sharp tip 32 extends through the opening 735 until enlarged diameter portion 38 engages the opening 735. 因此阻止了插入器针31的不希望的远侧运动,这样,锋利的末端32不能再次裸露在针罩40之外。 Thereby preventing undesired insertion needle 31 distally, so that sharp tip 32 is not exposed outside of the needle cover 40 again.

锁定腿730靠近开口735处可具有一漏斗形结构736。 Locking leg 730 near the opening 735 may have a funnel-shaped structure 736. 该漏斗形结构736用作插入器针31的一导向件,以保证:如果插入器针31在其撤回针罩40之后向远侧移动,插入器针通过开口735。 The funnel-shaped structure 736 is used as a needle is inserted into the guide member 31 to ensure that: If, after the withdrawal of the insertion needle 31 in the needle shield 40 which move distally, needle inserted through the opening 735. 漏斗形结构736可构造成这样:它与图3C所示的直径放大部分38的退拨的远端部分38b的形状互补。 Funnel-shaped structure 736 may be configured so that: it is shown in an enlarged diameter of the distal portion 38 of dial back the complementary shaped portion 38b in FIG. 3C. 或者,锁定腿730可用一横向阻挡件结构取代,例如如图74和75所示那样。 Alternatively, locking leg 730 may be replaced by a transverse barrier structure, such as shown in FIG. 74 and 75.

为了将导管21放入病人的血管内,临床医生基本上纵向地将插入器针31和导管21与目标血管对齐。 For the catheter 21 into the patient's blood vessel, the clinician substantially longitudinally insertion needle 31 and catheter 21 are aligned with the target blood vessel. 在静脉穿刺过程中,锋利的末端32的斜面应基本上面向背离皮肤表面的方向。 During venipuncture, the sharp end of the inclined surface 32 should be substantially facing a direction away from the skin surface. 临床医生以一小的角度将插入器针31和导管21插入皮肤,最好角度约小于35°,这样,锋利的末端32进入目标血管。 Clinician a small angle to the insertion needle 31 and catheter 21 inserted into the skin, preferably an angle of less than about 35 °, so that sharp tip 32 into the target vessel. 临床医生然后最好观察针套节34的反光腔中的血的反光。 The clinician then preferably needle hub 34 observe the reflected light reflective chamber blood.

在确认插入器针31和导管21插入了目标血管之后,临床医生沿插入器针31轴向地朝向远侧推进导管21进入血管中的位置。 After confirming the insertion needle 31 and catheter 21 is inserted into the target vessel, the clinician in the insertion needle 31 axially toward the distal position of the pusher catheter 21 into the blood vessel. 在某些技术中,在导管21完全推进到血管中的位置之前,插入器针31可部分地撤回进导管21。 In certain techniques, before the catheter 21 is completely advanced into position in the blood vessel, the insertion needle 31 may be partially withdrawn into the catheter 21. 在导管21适当定位之后,临床医生从她的另一手放一手指在病人血管上方的皮肤上,大约在导管2 1远端上方。 After the catheter 21 is properly positioned, the clinician from her other hand to put a finger on the patient's skin over the blood vessel approximately over the distal end of the catheter 21. 通过将她的手指放在病人皮肤上并对皮肤施加足够的压力,临床医生由此基本上闭塞或至少最小程度上减少通过导管21的血流。 By her finger on the patient's skin and applying sufficient pressure to the skin, the clinician thereby substantially closing or at least reducing blood flow through the duct 21 the minimum extent. 临床医生然后通过近侧向移动针套节34,从导管21完全抽出插入器针31。 The clinician then moves the needle hub proximal to 34, the insertion needle 31 fully withdrawn from the catheter 21. 这种运动使插入器针31近侧向地移入针罩40。 This motion of the insertion needle 31 proximally into needle shield 40 circumferentially.

在此公开的弹簧夹子的诸实施例中,其中一个实施例的弹簧夹子用来连接针罩40和导管套节24,直到插入器针31的锋利的末端32撤回进针罩40,在插入器针31的这种近侧向的运动过程中,针罩40仍然与导管套节24接合。 In various disclosed embodiments, a spring clip, one embodiment of the spring clip used to connect needle hub 40 and catheter hub 24, until the sharp tip 32 of the insertion needle 31 withdrawn into the needle shield 40, the inserter this near lateral movement of the needle 31, the needle cover 40 remains engaged with the catheter hub 24. 一旦插入器针31的锋利的末端32撤进针罩40,这样锁定件接合插入器针31以阻止插入器针31的锋利的末端32走出针罩40的远端的不希望的远侧运动,针罩40可与导管套节24脱离。 Once inserted into sharp needle distal end 31 of the shroud 32 to withdraw needle 40, so that undesired movement of the distal insertion needle engaging member 31 to prevent the sharp end of the needle 31 is inserted into the distal end 32 of the needle cover 40 out of the lock, needle shield 40 may be disengaged from the catheter hub 24. 插入器针31和针罩40从导管套节24上移去之后,临床医生然后可将一液体输送装置,一PRN,一封闭端帽或某些其它的血液监视装置连接到导管套节24上,并开始所计划的治疗。 After insertion needle 31 and needle cover 40 is removed from the catheter hub 24, the clinician may then be a fluid delivery device, a PRN, end cap or some other blood monitoring device 24 is connected to a closed conduit hub and the planned start of treatment. 插入器针31和针罩40然后可根据设备的处置设定书而去除。 The insertion needle 31 and needle shield 40 may then be removed according to the disposal device book set.

由此可见,本发明提供的带有针罩的一导管和插入器针的组件是紧凑、简单而易于使用的,不需要特殊的装置和技术来操作,只要插入器针从导管中撤回,就自动地保护插入器针的锋利的末端,且针罩仍然连接在导管上,直到针罩覆盖住插入器针的锋利的末端。 Thus, the present invention provides a catheter and insertion needle assembly with needle shield is compact, simple and easy to use, and requires no special technical means to operate, as long as the insertion needle is withdrawn from the catheter, it automatically sharp tip guard insertion needle, and the needle shield remains attached to the catheter, until the sharp end of the needle shield covers the needle insertion.

Claims (5)

1.一导管和插入器针的组件,包括:一具有一近端和一远端的柔性导管;一与导管流体连通的导管套节,它具有一近端和与导管连接的一远端;一连接在导管套节上的延伸管,这样,延伸管与导管套节流体连通;一可移去地设置在导管内的插入器针,它具有一近端和一锋利的远端,插入器针具有基本固定的横截面;一针罩,它有选择地接合导管套节,并可相对于插入器针从第一位置移动到在插入器针远端的第二位置,针罩包括一具有一夹子的外壳,其中,夹子包括一具有一弹簧臂和一夹子臂的V形结构,该夹子适合弯曲以脱开与导管套节的接合;一横向阻挡件,它固定在弹簧臂上;一系链,其与针罩结合,以约束针罩相对于针沿远端方向移动;以及一固定在插入器针近端的针套节,系链固定在该针套节上,其中,当针罩处于第一位置时,插入器针接 1. A catheter and insertion needle assembly, comprising: having a proximal end and a distal end of a flexible catheter; a catheter hub in fluid communication with the conduit having a proximal end and a distal end connected to the catheter; a catheter hub connected to the extension tube, so that the extension tube in fluid communication with conduit hub; a removably inserted needle disposed within the catheter, having a proximal end and a sharp distal inserter a needle having a substantially constant cross section; a needle shield, which selectively engages the catheter hub, and relative to the insertion needle from the first position to the second position at the distal end of the insertion needle, having a needle shield comprising a clamp housing, wherein the clip includes a V-shaped configuration having a spring arm and a gripper arm adapted to bend the clip to disengage the catheter hub engaged; a transverse blocking member, which is fixed to the spring arm; a tether, which binds to the needle shield to restrict movement of the needle with respect to the needle shield in the distal direction; and a needle hub fixed to a proximal end of the insertion needle, the tether is fixed to the needle hub, wherein, when the needle when the cover is in the first position, the insertion needle connected 弹簧臂,这样,夹子被保持在偏置位置的、与导管套节结合的插入器针的一侧,而当针罩处于第二位置时,插入器针脱离弹簧臂,这样,它脱离导管套节;以及其中,当夹子处于非偏置位置时,横向阻挡件移动进入到一约束针罩相对于插入器针的近端移动的位置中。 Spring arms, so that the clip is held in a biased position, the side bonded to the catheter hub of the needle is inserted, when the needle shield is in the second position, the insertion needle from the spring arm, so that it disengages from the catheter hub section; and wherein, when the clip is in a non-biased position, the blocking member moved laterally into a constraint needle shield relative to the proximal movement of the insertion needle position.
2.如权利要求1所述的导管和插入器针的组件,其特征在于,系链包括多个褶。 2. The catheter and insertion needle assembly according to claim 1, wherein the tether comprises a plurality of pleats.
3.一针罩组件,包括:一针,它具有一近端和一远端,以及一主要部分和一直径放大部分;一针罩,它可滑动地安装在插入器针上,以便从第一位置移动到在插入器针远端的第二位置,针罩包括;一具有一近端部分和一远端部分和一腔室的外壳,其中,针至少部分设置在腔室里;一形成在外壳里的壁;安装在外壳上并设置在壁附近和靠近壁的接片;以及其中,当针罩从第一位置移动到第二位置时,接片向近处弯曲,以允许插入器针的直径放大部分通过;以及,其中,当针罩处于第二位置时,防止接片通过壁向远处弯曲,用于和导管和插入器针组件,其包括:一具有一近端和一远端的导管;一与导管流体连通的导管套节,它具有一近端和与导管近端连接的一远端;一固定在导管套节上的延伸管,它与导管套节流体连通;以及防止针罩离开插入器针远 3. a needle shield assembly comprising: a needle having a proximal end and a distal end, and an enlarged portion and a main portion having a diameter; a needle shield which is slidably mounted on the insertion needle so that from position to a second position at the distal end of the insertion needle, the needle shield comprising; a housing having a proximal portion and a distal portion and a chamber, wherein the needle chamber at least partially disposed in the cavity; forming a a wall in the housing; mounted on the housing and disposed in the vicinity of the walls and tabs close to the wall; and wherein, when the needle shield is moved from the first position to the second position, the tab is bent proximally to allow the inserter diameter of the needle through the enlarged portion; and, wherein, when the needle shield is in the second position, to prevent the tab is bent away through the walls, and a catheter and insertion needle assembly, comprising: a proximal end and having a the distal end of the catheter; and a conduit in fluid communication with the catheter hub having a proximal end and a distal end connected to the proximal end of the catheter; a fixed pipe section extending the catheter hub, which hub fluid communication with the conduit; and to prevent the insertion needle leaving the needle shield away 的不需要的远端移动的装置,还包括一安装在针罩里的弹性夹子,它适合于弯曲进入和脱离与导管套节的接合,其中,当针罩处于第一位置时,插入器针接触夹子,使它弯曲进入偏置位置,与导管套节接合,当针罩处于第二位置时,插入器针脱离夹子,使它可弯曲至其非偏置位置与导管套节脱开。 Unwanted movement of the distal end of the apparatus, further comprising a spring clip is mounted in the needle shield, which is adapted to flex into and out of engagement with the catheter hub, wherein, when the needle shield in the first position, the insertion needle contacting the clip, it is bent into the biased position, the engagement with the catheter hub, when the needle shield is in the second position, the insertion needle from the gripper, so that it can be bent to their non-biased position disengaged from the catheter hub.
4.如权利要求3所述的组件,其特征在于,还包括一固定地安装在针罩的外壳上的固位板,其中接片是连接在固位板上的片簧。 4. The assembly according to claim 3, characterized in that, further comprising a retainer plate fixedly mounted on the housing of the needle shield, wherein the tab is connected to the leaf spring retention plate.
5.如权利要求4所述的组件,其特征在于,壁和接片垂直于针组件的轴线,其中,接片与壁接触。 5. The assembly according to claim 4, characterized in that the wall webs and perpendicular to the axis of the needle assembly, wherein the tab contact with the wall.
CNB01807054XA 1998-04-09 2001-11-14 Catheter and introducer needle assembly with needle shield CN1296105C (en)

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CN1427731A (en) 2003-07-02
AU4150902A (en) 2002-06-18
BR0107774B1 (en) 2012-11-27
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CN1817379A (en) 2006-08-16
BR0107774A (en) 2004-07-06

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