CN101112638B - Vessel having a safeguard device and introducing needle component - Google Patents

Vessel having a safeguard device and introducing needle component Download PDF

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Publication number
CN101112638B
CN101112638B CN 200610108071 CN200610108071A CN101112638B CN 101112638 B CN101112638 B CN 101112638B CN 200610108071 CN200610108071 CN 200610108071 CN 200610108071 A CN200610108071 A CN 200610108071A CN 101112638 B CN101112638 B CN 101112638B
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Prior art keywords
needle
device
leading
part
safety
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CN 200610108071
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Chinese (zh)
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CN101112638A (en )
Inventor
云财明
李洪森
林瑞权
谢友能
钟杰仁
陈永权
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贝克顿·迪金森公司
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    • 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
    • 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
    • A61M25/0606"Over-the-needle" catheter assemblies, e.g. I.V. catheters
    • 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
    • A61M5/3275Means 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

The present invention relates to a safety device which is used for a guide pipe and a leading needle component, the safety device is provided with a spring clamp (50), the spring clamp is provided with at least one first clamping part (52), at least one second clamping part (55) and a catch (53), when the leading needle is drew out, the first clamping part is irreversibly meshed with a first clamped part (47) which is arranged on a needle cage (40), the catch (53) moves to the position in front of the distal end of the leading needle, and a limit device (80) can limit the distal end of the leading needle 31 not to move to the outside of the needle cage. The safety device of the present invention can prevent the reuse of the spring clamp, the needle cage or the components.

Description

带有安全装置的导管和引入针组件 Catheter and introducer needle assembly with a safety device

技术领域 FIELD

[0001] 本发明涉及一种导管和引入针组件,更具体地说,涉及一种用于导管和引入针组件的安全装置。 [0001] The present invention relates to a catheter and introducer needle assembly, and more particularly, to a safety device for introducing a catheter and needle assembly.

背景技术 Background technique

[0002] 血管内导管,特别是静脉导管(IV导管),通常被用于给病人输入液体,比如通常的盐液、各种药物以及注射营养品等,或者用来从病人体内抽取血液。 [0002] intravascular catheters, particularly venous catheter (IV catheter) is commonly used to input a patient fluid, such as normal saline, injection of various drugs and other nutritional supplements, or for withdrawing blood from the patient. 末梢静脉导管通常比较短,尺寸大概在两英寸或更短。 Peripheral venous catheters are usually relatively short, about the size of two inches or less in. 最常见类型的导管是套在一个引入针上的末梢静脉导管。 The most common type of catheter is introduced over a needle peripheral venous catheters. 这种套在引入针上的末梢静脉导管是装配在一根带有尖锐针尖的引入针上。 This sleeve on the introducer needle peripheral venous catheters are introduced into the needle with a sharp tip is fitted. 导管和引入针被组装成,引入针的针尖延伸超过导管的尖端,并且引入针针尖部的倾斜面朝上。 Catheter and introducer needle are assembled, the tip of the introducer needle extends over the tip of the catheter and introduces an inclined portion facing the needle tip.

[0003] 导管和引入针组件被以一个浅的角度刺穿病人的皮肤而进入到末梢血管中,所述的末梢血管不与心脏直接相连,而是与与心脏直接相连的中央血管分支之一相连。 [0003] The catheter and introducer needle assembly is pierced at a shallow angle into a patient's skin and peripheral vessels, the peripheral vascular not directly connected to the heart, but one of the branch vessels of the heart and is directly connected to the central connected. 在其中一种技术中,引入针和导管一起被完全刺入到血管中。 In one technique, the introducer needle and catheter together into the blood vessel piercing completely. 而在另外一种技术中,引入针在开始的静脉穿刺之后被部分地从导管抽出。 In another technique, the introducer needle is partially withdrawn from the catheter after the start of the vein puncture. 然后,导管被完全插入到血管中。 Then, the catheter is fully inserted into the blood vessel.

[0004] 在导管和引入针组件插入到血管中之后,比较重要的是需要确认该组件是否在血管中处于正确的定位。 [0004] After the catheter and introducer needle assembly is inserted into a blood vessel, the more important is the need to confirm whether the component is properly positioned in a blood vessel. 为了确认所述组件是否正确定位,医务人员需要确认是否在引入针和位于引入针近端处的回流腔中有回流血存在。 To confirm whether the correct positioning of the assembly, medical personnel need to confirm whether the introduction of the needle and the needle is in the retracted flash chamber at the proximal end there is the presence of back bleeding. 通常该回流腔构成导管座的一部分。 The flashback chamber is typically constitutes a part of the catheter hub. 作为另外一种方案,引入针可以在其远端部分上设有一个凹槽或开口,这样,当导管由透明或半透明材料制成时,可以在引入针和导管之间的环形空间中观察血液回流。 As another embodiment, the introducer needle may be provided with a recess or opening in a distal end portion, so that, when the catheter is made of a transparent or translucent material, may be observed in the annular space between the introducer needle and catheter blood return. 一旦正确的定位得以确认,医务人员将通过在引入针和导管组件的尖端部位向下压患者的皮肤而对血管施加压力。 Once correct positioning is confirmed, the medical staff will apply pressure to the blood vessel by the tip portion of the catheter and introducer needle assembly is pressed down the patient's skin. 手指的压力将闭塞进一步的血液流动通过引入针。 Finger pressure occlusive further blood flow through the introducer needle. 也可以通过一个隔离塞来实现血液流动的闭塞。 It may be achieved by a separating stopper occluding blood flow. 医务人员抽出引入针而将导管留在原地,然后将液体输送装置比如普通肝素帽或者将头盖连接到导管。 Medical personnel and the withdrawal of the introducer needle, leaving the catheter in place, and then the fluid delivery device such as heparin or the cap is connected to the duct cap. 一旦引入针从导管抽出,其将会带有“沾染血液的针尖”,必须要正确处置。 Once the introducer needle is withdrawn from the catheter, it will be with a "blood contaminated needle" and must be disposed of properly.

[0005] 近年来,对于医务人员可能沾染到患者的血液已经有了非常大的关注,已经认识到“沾染血液的针尖”必须要立即处置。 [0005] In recent years, medical personnel may be exposed to the patient's blood has been a very big concern, have recognized the "tip of the contaminated blood" must be immediately disposed of. 这种关注越来越大,因为出现了目前还不能治疗的致命疾病,比如,艾滋病(AIDQ,这些疾病可能通过体液的交换而从一个被感染者传递到另外一个人。因此,与艾滋病感染者的体液接触必须要避免。正如上面所述的那样,如果引入针已经被用于将一个导管放置到艾滋病感染者的血管中,那么这个引入针就是传递疾病的一个媒介。尽管医务人员已经知道需要正确处理“沾染血液的针尖”,但是不幸的是在某些医疗环境下,比如紧急情况下或者由于没留意或疏忽,依然存在着被沾染的引入针戳到医务人员的情形。 This concern is growing because of a fatal disease is currently untreatable, such as AIDS (AIDQ, and these diseases may be passed from an infected person to another through the exchange of body fluids of a person. Therefore, people living with HIV the body fluids to be avoided. as described above, if the introducing needle has been used to place a catheter into a blood vessel of AIDS, then the needle is introduced into a transfer medium of the disease. Although medical personnel need to know already properly handle "blood contaminated needle," but unfortunately in certain medical environments, such as in an emergency or due to negligence or did not pay attention, there are still situations introducing needle poked medical staff are contaminated.

[0006] 为了解决上述被“血液沾染的针尖”意外刺到的问题,已经开发了各种引入针安全装置。 [0006] In order to solve the above is "blood contaminated needle" accidental stab to the problem, various devices have been developed to introduce needle safety.

[0007] 美国专利文献US6287278公开了一种IV导管组件,该IV导管组件设有一个用来保护使用者的弹簧夹。 [0007] U.S. Patent Document US6287278 discloses an IV catheter assembly, the IV catheter assembly is provided with a spring clip used to protect the user. 然而,该IV导管组件并不设有外罩或者包围所述弹簧夹的外罩。 However, the IV catheter assembly is not provided with the spring clip surrounds the housing or cover. 尽管所述弹簧夹可以防止使用者接触到引入针的针尖,但是它并不能防止使用者接触到位于针尖上的残留血液,特别是,当引入针上设有一些圆周孔比如回流凹槽时更是如此。 Although the user can be prevented from contacting the spring clip to the tip of the introducer needle, but it does not prevent the user from exposure to residual blood on the needle tip is located, in particular, when provided with some of the more peripheral holes introduced into the needle recess such as reflux It is so. 所以, US6287278中的IV导管组件对于使用者来说依然是不安全的。 So, in US6287278 IV catheter assembly for the user it is still unsafe.

[0008] 美国专利文献US5215528中公开了一种导管和引入针组件,该组件中具有一个金属夹,该金属夹在导管插入到血管中并且从导管中抽出引入针后防止使用者被引入针刺伤。 [0008] U.S. Patent Document US5215528 discloses a catheter and introducer needle assembly having a metal clip, the metal clip of the catheter into a blood vessel and withdrawn from the catheter after the introduction of the needle to prevent the needle being introduced user hurt. 如US52155^的附图中所示,导管和引入针组件具有多个从凸缘48伸出的弧形凸起50, 这些弧形凸起限定形成一个容纳座53,在该容纳座53中保持导管座52。 As shown in the drawings US52155 ^ catheter and introducer needle assembly having a plurality of arcuate projections 48 projecting from the flange 50, which is formed arcuate projections define a receptacle 53, 53 held in the receptacle catheter hub 52. 管体38的一端限定形成一个凸起部38a延伸到导管座中。 One end of the tubular body 38 defines a boss portion is formed extending into the catheter hub 38a. 弧形凸起50的端部包括一些向内延伸的唇部M, 这些唇部可释放地保持着导管座的凸缘56。 The arcuate end portion 50 includes a number of projections extending inwardly of the lip portion M, the lip portion to releasably retain the flange 56 of catheter hub. 弧形凸起50和唇部M被设计成能接合凸缘56并且使得与从容纳座53去掉导管座52相比,使用者借助于突出部48b更容易从引入针针座上退下针罩。 M arcuate projections 50 and the lip portion are designed to engage flange 56 and catheter hub such that as compared with 52 to remove from the receptacle 53, the user by means of the projecting portion 48b is introduced more readily withdraw the needle from the needle shield base . 然而,上述的配合关系并不可靠,因为其依赖于制造公差。 However, with the above relationship is not reliable, because it is dependent on the manufacturing tolerances. 这样,在导管座和引入针针罩之间的脱离是不可预料的,可能在针尖被安全保护起来之前就脱离了。 Thus, between the catheter hub from the introducer needle and the needle shield is unpredictable, may be safely protected until the needle tip is disengaged from the. 这种不稳定的行为在一些需要精确性和可靠性的环境中是不合适的。 This erratic behavior in some of the required accuracy and reliability of the environment is not appropriate.

[0009] US6749588公开了一种带有针罩的导管和引入针组件。 [0009] US6749588 discloses a catheter with a needle shield of one kind and introducer needle assembly. 该针罩内设有一个弹簧夹。 The needle shield equipped with a spring clip. 在将引入针抽出之后,带有弹簧夹的针罩将会握持在引入针的针尖上,从而防止使用者接触到针尖上的血迹。 After introducing the needle withdrawn, the needle shield with the spring fingers will be held in the tip of the introducer needle, thereby preventing user contact with the blood on the tip. 然而,这种针罩不能防止别人在使用后的再利用,也就是,在引入针抽出之后,还可以在不损坏针罩或弹簧夹的情况下将弹簧夹从针罩中取出来,然后将引入针重新插入到导管中达到重新使用的目的。 However, this does not prevent others needle shield reused after use, i.e., after the introduction of the needle withdrawn, the spring clip may also be removed from the needle shield in the needle shield without damaging or spring clip, and then reinserted into the introducer needle catheter reuse purposes.

[0010] 因此,在现有技术中,依然需要对用于导管和引入针组件的安全装置进行改进以便克服上述的缺点。 [0010] Thus, in the prior art, is still a need for improvement of the safety device for a catheter and introducer needle assembly in order to overcome the above disadvantages.

发明内容 SUMMARY

[0011] 本发明的一个目的是提供了一种用于导管和引入针组件的安全装置,其不但能够防止使用者在导管插入血管且引入针抽出导管之后接触到针尖而且还能够防止使用者接触到针尖上的残留物。 [0011] An object of the present invention is to provide a safety device for a catheter and introducer needle assembly, which not only can prevent the user into the blood vessel after the catheter and introducer needle withdrawn into the catheter tip in contact with the user but also prevents the contact to the tip residue.

[0012] 本发明还提供了一种用于导管和引入针组件的安全装置,其能够防止针罩、引入针、或者整个组件在抽出弓丨入针之后被再使用,即,使用者在引入针抽出之后不能将弹簧夹拉出针重新设定回到原来的压缩模式。 [0012] The present invention further provides a safety device for a catheter and introducer needle assembly, which can prevent the needle shield, the needle is introduced, or the entire assembly is used after being withdrawn into the needle Shu bow, i.e., the introduction of the user You can not pull out the needle spring clamp reset back to the original compressed mode after withdrawal of the needle.

[0013] 本发明的上述目的通过一种用于导管和引入针组件的安全装置来实现,所述导管和引入针组件包括: [0013] The object of the present invention is achieved by a safety device for a catheter and introducer needle assembly, the catheter and introducer needle assembly comprising:

[0014] 导管组件,具有:导管,具有远端和近端;和导管座,该导管座与所述导管流体连通,该导管座具有近端和远端,导管座的远端与导管的近端相连; [0014] The catheter assembly comprising: a catheter having a distal end and a proximal end; and a catheter hub, the catheter hub in fluid communication with the conduit, the catheter hub having a proximal and a distal end a proximal end, a distal end of the catheter and the catheter hub end is connected;

[0015] 引入针组件,具有:引入针,具有近端、远端以及纵向轴线;引入针针座,固定到引入针的近端,所述引入针装在导管中; [0015] introducer needle assembly, comprising: introducing a needle having a proximal end, a distal end and a longitudinal axis; introducer needle hub fixed to the proximal end of the introducer needle, the needle is introduced in the conduit means;

[0016] 所述安全装置,包括:针罩,该针罩限定形成纵向延伸通道,并沿着横向于该纵向延伸通道的纵向的方向设有开口,纵向延伸通道的直径至少稍大于引入针的直径以便引入针能够穿过所述纵向延伸通道,在所述针罩上形成有至少一个第一被卡接部和至少一个第二被卡接部;弹簧夹,设有至少一个第一卡接部、至少一个第二卡接部以及挡片,所述弹簧夹通过所述开口安装到针罩内,弹簧夹的第二卡接部不可逆地与针罩的第二被卡接部啮合,所述弹簧夹适合于在一个大体上垂直于引入针纵轴线的平面内在引入针抽出之前的压缩模式和引入针抽出之后的张开模式之间伸缩;以及限位装置,用于在引入针抽出之后,限制引入针的远端移出针罩之外, [0016] The security device, comprising: a needle shield, the needle shield defining a longitudinally extending channel is formed, and in the direction transverse to the longitudinal direction of the longitudinally extending channel provided with an opening, longitudinally extending channel diameter at least slightly larger than the introducer needle so that the diameter of the introducer needle to pass through a longitudinally extending passage formed in the needle cover there is at least one first engagement portion and at least one second portion is snapped; spring clip, provided with at least one first snap portion, at least a second engagement portion and the flap, an opening through which the spring clip is mounted to the needle shield, the spring clip portion of the second engaging irreversibly with the needle shield is locked in the second engagement portion, the said spring clip adapted to stretch between a substantially open mode after the introduction of the needle about a plane perpendicular to the longitudinal axis of the introduction of the compressed mode prior to withdrawal of the needle and withdrawal of the needle is introduced; and a stopper means for introducing needle after withdrawal a distal end, the restriction of the introducer needle is removed outside the needle shield,

[0017] 其中,在引入针抽出之前,所述弹簧夹被穿过延伸通道的引入针抵靠在所述压缩模式,并且弹簧夹的第二卡接部不可逆地与第二被卡接部啮合。 [0017] wherein, prior to introducing the needle withdrawn, the spring clip is against the passage of the introducer needle extending through the compressed mode, and a second spring clip portion irreversibly snap engagement with the second locking portion . 而当抽出引入针且引入针移动通过弹簧夹时,弹簧夹被所述引入针所释放而弹开到所述张开模式,在引入针抽出之后,弹簧夹的第一卡接部不可逆地啮合针罩的第一被卡接部,所述挡片移动到引入针的远端前方而防止引入针的远端向远端方向移动到针罩外部。 When the needle is introduced and withdrawn through the introducer needle moves spring clip, the spring clip is released and the needle is introduced into the pop-open mode, after the introduction of the needle withdrawn, first engagement portion of the spring clip engages irreversibly the needle shield is snapped a first portion, a distal end of the flap moved to the front of the introducer needle to prevent distal movement of the introducer needle in the distal direction from the needle shield. 第一卡接部和第一被卡接部之间的啮合防止弹簧夹在引入针抽出之后被再压缩,而第二卡接部和第二被卡接部之间的啮合防止弹簧夹在引入针抽出之前和之后被拔出针罩,限位装置在引入针抽出之后限制引入针的远端向着近端方向移出针罩之外。 A first engagement portion and the first engaged portion to prevent engagement between the spring clip being compressed again after the introduction of the needle withdrawal, and the engagement between the second engagement portion and the second engagement portion to prevent the introduction of the spring clip and before withdrawal of the needle after the needle shield is pulled, the distal end of stop means to limit the introduction of the introducer needle after withdrawal of the needle out of the needle shield in a proximal direction toward the outside.

[0018] 本发明还提供一种导管和引入针组件,所述导管和引入针组件包括: [0018] The present invention further provides a catheter and introducer needle assembly, said catheter and introducer needle assembly comprising:

[0019] 导管组件,具有:导管,具有远端和近端;和导管座,该导管座与所述导管流体连通,该导管座具有近端和远端,导管座的远端与导管的近端相连; [0019] The catheter assembly comprising: a catheter having a distal end and a proximal end; and a catheter hub, the catheter hub in fluid communication with the conduit, the catheter hub having a proximal and a distal end a proximal end, a distal end of the catheter and the catheter hub end is connected;

[0020] 引入针组件,具有:引入针,具有近端、远端以及纵向轴线;引入针针座,固定到引入针的近端,所述引入针装在导管中; [0020] The introducer needle assembly, comprising: introducing a needle having a proximal end, a distal end and a longitudinal axis; introducer needle hub fixed to the proximal end of the introducer needle, the needle is introduced in the conduit means;

[0021] 安全装置,包括:针罩,该针罩限定形成纵向延伸通道,并沿着横向于该纵向延伸通道的纵向的方向设有开口,纵向延伸通道的直径至少稍大于引入针的直径以便引入针能够穿过所述纵向延伸通道,在所述针罩上形成有至少一个第一被卡接部和至少一个第二被卡接部;弹簧夹,设有至少一个第一卡接部、至少一个第二卡接部以及挡片,所述弹簧夹通过所述开口安装到针罩内,弹簧夹的第二卡接部不可逆地与针罩的第二被卡接部啮合,所述弹簧夹适合于在一个大体上垂直于引入针纵轴线的平面内在引入针抽出之前的压缩模式和引入针抽出之后的张开模式之间伸缩;以及限位装置,用于在引入针抽出之后,限制引入针的远端移出针罩之外; [0021] The safety device, comprising: a needle shield, the needle shield defining a longitudinally extending channel is formed, and the longitudinal direction of the longitudinally extending channel provided with an opening along a transverse, longitudinally extending channels at least slightly larger than the diameter of the introducer needle to the diameter introducing needle capable of passing through said longitudinally extending channel, a first cover is formed with at least one engagement portion and at least one second portion is snapped in said needle; spring clip, provided with at least a first engaging portion, at least one second card and a flap portion, the spring clip is mounted through the opening into the needle shield, the second portion of the spring clip snap irreversibly snap-engages with the second portion of the needle shield, the spring sandwiched between the open mode adapted to a plane substantially perpendicular to the internal pin is introduced the longitudinal axis of introducer needle and the introduction of the compressed mode prior to withdrawal of the needle extracted after stretching; and a stopper means for the introduction of the needle after withdrawal limit introducing the distal end of the needle beyond the needle shield removed;

[0022] 其中,在引入针抽出之前,所述弹簧夹被穿过延伸通道的引入针抵靠在所述压缩模式,并且弹簧夹的第二卡接部不可逆地与第二被卡接部啮合。 [0022] wherein, prior to introducing the needle withdrawn, the spring clip is against the passage of the introducer needle extending through the compressed mode, and a second spring clip portion irreversibly snap engagement with the second locking portion . 而当抽出引入针且引入针移动通过弹簧夹时,弹簧夹被所述引入针所释放而弹开到所述张开模式,在引入针抽出之后,弹簧夹的第一卡接部不可逆地啮合针罩的第一被卡接部,所述挡片移动到引入针的远端前方而防止引入针的远端向远端方向移动到针罩外部。 When the needle is introduced and withdrawn through the introducer needle moves spring clip, the spring clip is released and the needle is introduced into the pop-open mode, after the introduction of the needle withdrawn, first engagement portion of the spring clip engages irreversibly the needle shield is snapped a first portion, a distal end of the flap moved to the front of the introducer needle to prevent distal movement of the introducer needle in the distal direction from the needle shield. 第一卡接部和第一被卡接部之间的啮合防止弹簧夹在引入针抽出之后被再压缩,而第二卡接部和第二被卡接部之间的啮合防止弹簧夹在引入针抽出之前和之后被拔出针罩,限位装置在引入针抽出之后限制引入针的远端向着近端方向移出针罩之外。 A first engagement portion and the first engaged portion to prevent engagement between the spring clip being compressed again after the introduction of the needle withdrawal, and the engagement between the second engagement portion and the second engagement portion to prevent the introduction of the spring clip and before withdrawal of the needle after the needle shield is pulled, the distal end of stop means to limit the introduction of the introducer needle after withdrawal of the needle out of the needle shield in a proximal direction toward the outside.

[0023] 通过参照附图阅读下文中的描述可以理解本发明的上述优点以及其它优点,附图中所示的是本发明的优选实施例。 [0023] will be appreciated that the above advantages and other advantages of the present invention by reading the description of the accompanying drawings hereinafter with reference to embodiments shown in the drawings is a preferred embodiment of the present invention.

[0024] 附图描述 [0024] DESCRIPTION OF THE DRAWINGS

[0025] 在下文中将参照附图中示出的优选实施方式对本发明进行描述。 [0025] The present invention will be described in the preferred embodiment illustrated in reference to the drawings hereinafter.

[0026]其中: [0026] wherein:

[0027] 图1示出了带有本发明安全装置的导管和引入针组件的整个产品; [0027] FIG 1 shows a catheter with a safety device according to the present invention and introducer needle assembly of the product;

[0028] 图2示出了图1中所示导管和引入针组件的分解图;[0029] 图3示出了本发明第一实施例中的弹簧夹的放大图; [0028] FIG. 2 shows an exploded view of a catheter and introducer needle assembly shown in FIG. 1; [0029] FIG 3 illustrates an enlarged view of the spring clip in the first embodiment of the present invention;

[0030] 图4示出了第一实施例的导管和引入针组件的部分视图,其中示出了弹簧夹触发前的状态,在该状态,弹簧夹折叠在其压缩模式并且被引入针保持在该压缩模式; [0030] FIG. 4 shows a first embodiment of a catheter and introducer needle assembly partial view, showing a state before the trigger spring clip, in this state, the spring clip and foldable in the compressed mode is introduced in the needle holder the compression mode;

[0031] 图5示出了第一实施例的导管和引入针组件的另外一个部分视图,其也示出了弹簧夹触发之前的状态; [0031] FIG. 5 shows a first embodiment of a catheter and introduced into another partial view of the needle assembly, which also shows the state before the trigger spring clip;

[0032] 图6为一个透视图,其示出了位于针罩中的弹簧夹的第一卡接部在弹簧夹触发之前的位置; [0032] FIG. 6 is a perspective view which shows a position of the first engagement portion of the spring clip needle guard is located before the trigger spring clip;

[0033] 图7示出第一实施例中的安全装置在弹簧夹触发前的另外一个视图; [0033] FIG. 7 shows the security device of the first embodiment in view of a further embodiment of the spring clip in front of the trigger;

[0034] 图8示出了第一实施例的导管和引入针组件在弹簧夹触发后状态的部分视图; [0034] FIG. 8 shows a partial view of the catheter and introducer needle assembly of the first embodiment in the triggered state of the spring clip;

[0035] 图9示出了第一实施例的导管和引入针组件在弹簧夹触发后状态的另外一个视图; [0035] FIG. 9 shows a first embodiment of catheter and introducer needle assembly of another view of the spring clip in the triggered state;

[0036] 图10示出了第一实施例的导管和引入针组件在弹簧夹触发后状态的另外一个视图; [0036] FIG. 10 shows another view of a first embodiment of catheter and introducer needle assembly after the spring clip in the triggered state;

[0037] 图11为一个透视图,示出了针罩中的弹簧夹的第一卡接部在弹簧夹触发后的位置; [0037] FIG. 11 is a perspective view showing the position of the needle cover spring clip in the first engagement portion of the trigger spring clip;

[0038] 图12为剖面图,其示出了在弹簧夹触发后引入针的针尖相对于弹簧夹的档片的位置关系; [0038] FIG. 12 is a sectional view, which shows the introduction of the needle tip after the trigger spring clip relative positional relationship of the baffle plate of the spring clip;

[0039] 图13的视图示出了垫圈挡住引入针在向后的方向上的运动; [0039] FIG. 13 illustrates a view of the gasket to block movement of the needle is introduced in the rearward direction;

[0040] 图14的视图清楚地示出了弹簧夹的第二卡接部与位于针罩的第二被卡接部接合而防止再使用。 View [0040] FIG 14 clearly shows a second detent spring clip is engaged with the second portion of the needle shield to prevent the clip portion reuse.

[0041] 图15是一个分解图,其示出了包含V形弹簧夹的安全装置的第二实施例; [0041] FIG. 15 is an exploded view showing a second embodiment of security device comprises a V-shaped spring clip;

[0042] 图16示出了第二实施例中的V形弹簧夹; [0042] FIG. 16 shows a second embodiment of the V-shaped spring clip;

[0043] 图17示出了第二实施例中的安全装置在弹簧夹触发后的状态; [0043] FIG. 17 shows a state of the safety device of the second embodiment of the spring clip after the trigger;

[0044] 图18示出了在第二实施例中使用的垫圈; [0044] FIG. 18 shows a gasket used in the second embodiment;

[0045] 图19示出了安全装置的第三实施例,其中用系绳充当限位装置。 [0045] FIG 19 shows a third embodiment of the safety device, wherein the tether acts as a stop means.

具体实施方式 detailed description

[0046] 在本文中,术语“近端”和“远端”是相对于引入针针座34而言来描述位于导管和引入针组件10上的位置。 [0046] As used herein, the terms "proximal" and "distal" are relative terms to describe 34 for introducing the needle holder located on a catheter and introducer needle assembly 10. 术语“向前的方向”是指向着引入针针尖的方向,而“向后的方向”是指向着远离针尖的方向。 The term "forward direction" refers to the direction of introduction of the needle tip, while the "rearward direction" refers to the direction away from the needle tip.

[0047] 在本发明中,在不同的实施例中采用相同的标号来标识相同的部位或部件。 [0047] In the present invention, the same reference numerals in the various embodiments to identify the same parts or components. 另外, 尽管本发明可以由多种形式的实施方式来实施,但是在附图所示以及下文详细描述的仅仅是本发明的优选实施方式,本发明的保护范围由所附的权利要求来限定。 Further, although the present invention can be implemented by various forms of embodiment, but are merely described in detail hereinafter and illustrated in the accompanying drawings a preferred embodiment of the present invention, the scope of the present invention is defined by the appended claims.

[0048] 在图1-14中示出了本发明的第一实施方式。 [0048] In FIG 1-14 shows a first embodiment of the present invention.

[0049] 如图1和2所示,带有本发明第一实施方式的安全装置的导管和引入针组件整体上由标号10标识。 Conduit [0049] and FIG. 1, the safety device having a first embodiment of the present invention shown in FIG. 2 and introducer needle assembly is identified by reference numeral 10 overall. 它包括导管组件20,引入针组件30和安全装置。 It includes a catheter assembly 20, the introduction of the needle assembly 30 and safety devices.

[0050] 导管组件20包括导管21,该导管21具有近端,远端,和固定到导管21近端的导管座对。 [0050] The catheter assembly 20 includes a catheter 21, the catheter 21 having a proximal end, a distal end, the proximal end of the catheter 21 and fixed to the catheter hub pair. 用于导管21的合适材料包括,但并不限于,热塑性树脂比如聚四氟乙烯(PTFE),聚亚安酯,等等。 Suitable materials for catheter 21 include, but are not limited to, thermoplastic resins such as polytetrafluoroethylene (PTFE), polyurethane, and the like. 优选地,导管21由透明材料或至少半透明材料制成以便在引入针31上设有可选的回流凹槽35时观察回流。 Preferably, the catheter 21 is made of a transparent material or at least translucent material 35 when viewed reflux for optional reflux recess 31 is provided on the introducing needle. 用于导管座M的合适材料包括,但不局限于,热塑性聚合物树脂,诸如聚碳酸酯,聚苯乙烯,聚丙烯,等等。 Suitable materials for catheter adapter M include, but are not limited to, thermoplastic polymeric resins such as polycarbonate, polystyrene, polypropylene, and the like.

[0051] 引入针组件30包括引入针31,该引入针31具有由斜面形成的尖锐远端针尖32 和与引入针针座34相连的近端。 [0051] The introducer needle assembly 30 includes introducer needle 31, the needle 31 is introduced having a sharp distal tip and a proximal end 32 formed by inclined surface 34 and the introduction needle holder connected. 在尖锐远端针尖32附近,引入针31包括一个突变的部位33,例如在本实施例中,该突变的部位33可以是一个直径增大的突变部位。 Near the sharp distal tip 32, the needle 31 comprising introducing a mutation site 33, for example, in the present embodiment, the mutation may be a portion 33 of increased diameter mutation site. 引入针31优选由不锈钢制成。 Introducing needle 31 is preferably made of stainless steel. 可选地,回流凹槽35可以设置在引入针31上以便观察位于引入针31外表面与导管21内腔之间环形空间中的血液回流。 Alternatively, the grooves 35 may be disposed at reflux for introducing needle 31 in order to observe the blood return an annular space between the outer surface of the introducer needle 31 and catheter 21 lumen. 在另外一种备选方案中,也可以没有回流凹槽35,而是可以在引入针针座34中设置一个整体的回流腔室。 In another alternative, the groove 35 may not reflux, but may be provided integrally incorporated in the flashback chamber of needle holder 34. 引入针针座34优选由与导管座M相同的材料制成。 Introducing needle hub 34 is preferably made from the same material as the catheter hub M. 优选地,可以在引入针针座34上延伸出一握持片36以供握持。 Preferably, the introduction may extend over a needle holder 34 holding plate 36 for holding. 当组装在一起时,导管21套在引入针31外。 When assembled together, the catheter introducer needle 21 in the outer sleeve 31.

[0052] 所述安全装置包括针罩40,该针罩40优选由塑料制成。 [0052] The safety shield apparatus includes a needle 40, the needle cover 40 is preferably made of plastic. 安全装置还包括安装在针罩40中的弹簧夹50,如图2,4,和5中所示。 Further comprising a security device mounted in the needle spring clip 50 of the cover 40, 2, 4, and 5 in FIG. 如图8-10中所示,一旦导管21插入到血管中并且引入针31从导管中抽出,针罩40和弹簧夹50将会握持在引入针的针尖上,从而防止使用者被针尖戳伤。 As shown in FIG. 8-10, once the catheter is inserted into the blood vessel 21 and introduced into the needle 31 withdrawn from the catheter, needle shield 40 and the spring clip 50 will be held in the tip of the introducer needle, thereby preventing the user from the needle tip is poked hurt. 针罩40限定形成有纵向的延伸通道42。 Needle shield 40 defines a longitudinally extending channel formed 42. 纵向的延伸通道42能容许引入针31纵向穿过针罩40。 The longitudinally extending channel 42 can allow the introduction of the needle 31 through the needle cover 40 longitudinally. 延伸通道42的直径至少要稍大于引入针31杆部的直径。 Diameter channel 42 extending at least slightly larger than the diameter of the needle 31 is introduced portion. 这样能容许引入针31的杆部容易地穿过延伸通道42。 This will allow the introduction of the needle shaft portion 31 extends through the passage 42 easily. 延伸通道42包括远端部分44和近端部分45,远端部分44在抽出引入针31之前包围着导管座20的近端,而近端部分45在抽出引入针31之后将引入针31的远端部分封闭其内。 Extending passage 42 includes a distal portion 44 and proximal portion 45, distal portion 44 surrounding the proximal end of catheter hub 20 prior to withdrawal of introducer needle 31, while the proximal portion 45 after introducer needle 31 is pulled out to introduce needle 31 away a closed inner end portion thereof. 安全装置还包括限位装置80,该限位装置将在引入针31抽出之后限制引入针的针尖移动到针罩40之外。 Further comprising a security device limiting means 80, which stop means to limit the movement of the needle tip of the introducer needle after introduction of the needle 31 withdrawn out of needle shield 40.

[0053] 如图4和5中所示,在针罩40上沿着其纵向轴线的方向上设置有开口60。 [0053] As shown in Figures 4 and 5, is provided along the direction of its longitudinal axis on the needle cover 40 has an opening 60. 该开口60与延伸通道42相通。 The opening 60 communicates with channel 42 extends. 弹簧夹50通过开口60安装在针罩40中。 Clip 50 mounted in the needle cover 40 through the opening 60. 在引入针31的抽出之前,弹簧夹50将会折叠成其压缩模式并且被引入针31抵靠在其压缩模式,在这种情况下, 弹簧夹50将位于引入针31的轴线的一侧(参见图4,5和7)。 31 prior to introduction of the needle is withdrawn, the spring clip 50 which will be folded into a compressed mode, and is introduced into the needle 31 against the compression mode, in this case, the spring clip 50 on one side of the axis of the needle 31 is introduced ( Referring to FIGS. 4, 5 and 7). 当抽出引入针31之后,引入针31释放弹簧夹50,从而弹簧夹50从其压缩模式恢复到其张开模式(参见图8-10)。 After the withdrawal of the introducer needle 31, needle 31 is introduced into the release spring clip 50, the clip 50 so that recovery from its compressed mode to the expanded mode thereof (see FIG. 8-10). 在引入针31的抽出期间引入针31的针尖移动通过弹簧夹50时,其将会触发弹簧夹50从压缩模式到张开模式的运动(在下文中将称作“弹簧夹的触发”)。 Moving the tip of the introducer needle 31 during withdrawal of introducer needle 31 through the spring clip 50, which clip 50 triggered to open the compressed mode from the motion mode (hereinafter referred to as "trigger spring clip").

[0054] 本发明的弹簧夹50在其上形成有至少一个第一卡接部52,至少一个第二卡接部55,至少一个第三卡接部51和挡片53。 [0054] The spring clip 50 of the present invention is formed with at least a first engagement portion 52, the at least one second engagement portion 55, at least one third snap flap portions 51 and 53 thereon. 第一卡接部52和第二卡接部55适合于锁定设置在针罩40上的第一被卡接部47和第二被卡接部(未示出),从而防止在弹簧夹触发后的再使用。 The first engagement portion 52 and the second locking portion 55 is adapted to lock the needle cover 40 is provided on the first engagement portion 47 and the second engagement portion (not shown), so as to prevent the spring clip after triggering re-use. 当弹簧夹50处于触发前的压缩模式时,第三卡接部51适合于与形成在导管座M上的被卡接部25啮合。 When the compressed mode is triggered before the clip 50, the third engagement portion 51 is adapted to engage with the engagement portion M is formed on the catheter hub 25. 挡片53设置用来在弹簧夹触发后挡住引入针向着远端方向移动。 Flaps 53 arranged to block the introduction of the spring clip needle in a distal direction toward the trigger. 这些在下文中会进一步详细描述。 These will be described in further detail below.

[0055] 在图3中示出了本发明第一实施例中的弹簧夹50,尽管该弹簧夹50可以是其它形状,但是其优选可以是该第一实施例中的V形弹簧夹。 [0055] FIG. 3 shows the present invention in a first embodiment of the spring clip 50, the clip 50 although other shapes may be, but it may be preferred embodiments of the V-shaped spring clip first embodiment. 弹簧夹50通过开口60安装在针罩40中,V形的顶点指向与开口60相反的方向,当弹簧夹50处于其张开模式时,形成V形的两条腿将会骑跨在引入针31纵向轴线上。 Clip 50 is mounted through the opening 60 in the needle shield 40 and opposite the V-shaped openings 60 and the apex point, when the clip 50 is in its open mode, forming a V-shaped legs will straddle introducing needle 31 on the longitudinal axis. 以这种定位方式,在弹簧夹触发时,弹簧夹50 适合于横向于引入针31的纵轴线运动。 In this manner positioning, when the trigger spring clip, the spring clip 50 is adapted to transversely to the longitudinal axis of the introduction of needle 31 movement. 这种运动可以沿着针罩40上的一个坡道表面限定的路线进行。 Such movement may be performed along a ramp surface 40 on the needle shield defining a route. 当然,弹簧夹50在针罩40中可以布置成其V形的顶点位于一个与引入针31 纵轴线共轴线的圆圈的其它位置。 Of course, the clip 50 in the needle cover 40 may be arranged in other positions of the vertices thereof in a V-shape with the longitudinal axis of introducer needle 31 coaxial circle. 所必须的是弹簧夹50适合于横向于引入针31的纵轴线运动。 The spring clip 50 must be adapted to the transverse movement of the needle for introducing the longitudinal axis 31. V形的顶点便于其向着压缩模式压缩或者从压缩模式张开。 V-shaped apex toward the compression mode facilitates its compressed or expanded from a compressed mode. 另外,V形的顶点也可以是活铰链的形式。 Further, V-shaped apex may be in the form of a living hinge.

[0056] 在第一实施例中,弹簧夹50限定形成V形的两条腿之一上设有大体平行于引入针31纵向轴线方向延伸的夹持臂M。 [0056] In the first embodiment, the spring clip is provided substantially parallel to the longitudinal axis of introducer needle 31 extending in the direction of the clamp arm 50 on one of the two legs forming a V-shape defining M. 在该夹持臂M的纵向两端上形成有两个凸指。 Is formed on both longitudinal ends of the clamping arm has two projections M means. 优选地,两个凸指大体垂直于引入针31的纵轴线方向延伸。 Preferably, two projection means extending generally perpendicular to the introduction direction of the longitudinal axis of the needle 31. 第一卡接部52形成在所述凸指之一上,而第三卡接部51形成在另外一个凸指上。 The first engagement portion 52 is formed on one of the projecting means, and the third engagement portion 51 is formed in a projecting finger on further. 在该第一实施例上,第一卡接部52可以是至少一个从所述凸指上向着针罩40突出的止回卡齿或倒刺。 In the first embodiment, the first engagement portion 52 may be at least a projection from the upper finger 40 projecting towards the backstop tooth or barb needle shield card. 而形成于针罩40上的第一被卡接部47可以是止回卡齿或者凹槽,这在图14中更好地示出。 Is formed on a first needle cover 40 is snapped back portion 47 may be a latch or locking groove, which better shown in FIG. 14.

[0057] 在弹簧夹50的限定形成V形的另外一条腿的自由端,通过向着V形的外侧折叠该自由端形成凸指56。 [0057] The free end of the other leg of the V-shaped clip 50 is defined, the projection means 56 is formed by a V-shaped folded toward the outside of the free end. 第二卡接部55形成在该凸指56上。 The second locking portion 55 is formed on the projection means 56. 如图3所示,第二卡接部55可以为至少一个止回卡齿或倒刺。 3, the second engagement portion 55 may be at least one barb or tooth check card. 当弹簧夹50安装在针罩40中时,凸指56将会插入到形成在针罩40上的槽49 (参见图7)中,作为第二卡接部55的止回卡齿或倒刺将会与形成在该槽49的内壁上的第二被卡接部例如止回卡齿或凹部(未示出)啮合,这样,一旦弹簧夹50的凸指56插入到槽49中就不能被拔出了。 When the clip 50 is mounted upon the needle hub 40, 56 will be inserted into the projection means formed on the needle cover 40 in a groove 49 (see FIG. 7), as the second locking portion or the non-return latch barbs 55 will be the second engagement portion is formed on an inner wall of the groove 49 of the check card, for example, teeth or recesses (not shown) engages, so that, once the spring clip projections 50 inserted into the slot 56 of the finger 49 can not be He pulled out. 作为另外一种方案,第二卡接部55也可以为其它结构,比如通过弯折凸指56的自由端而形成的凸缘。 As another embodiment, the second locking portion 55 may, for example by bending a free end projecting flange means 56 is formed by other structures. 所必须的是,第二卡接部55和第二被卡接部(未示出)应当在它们啮合之后防止弹簧夹50被从针罩40中拔出。 Necessary, the second engagement portion 55 and the second engagement portion (not shown) to be prevented from being pulled out of the spring clip 50 in the needle shield 40 after their engagement.

[0058] 由于第一卡接部52和第二卡接部55的作用,在弹簧夹触发之后,使用者在不破坏弹簧夹或者针罩的情况下不能使弹簧夹回到触发前的状态,从而防止了弹簧夹或者引入针或者整个导管和引入针组件的重新使用。 The spring clip can not return to a state before triggering where [0058] the action of a first engagement portion 52 and the second locking portion 55, after triggering the spring clip, spring clip or the user does not destroy the needle shield, thereby preventing the introduction of the spring clip or a needle or the entire catheter is introduced and the re-use of the needle assembly.

[0059] 如上所述,在第一实施例中,第三卡接部51为形成于大体平行于引入针31的纵向轴线延伸的夹持臂M上的凸指。 [0059] As described above, in the first embodiment, the third engagement portion 51 is formed in substantially parallel refers to the introduction of the needle projecting on the longitudinal axis of the gripping arm M 31. 第三被卡接部25可以是形成在导管座M上的凸缘、螺纹、 凹槽、止回卡齿等等。 The third portion 25 is snapped flange may be formed on the catheter hub M, threads, grooves, teeth and the like check card. 尽管第三卡接部51和第三被卡接部25的使用是优选的,因为这样可以在针罩40和导管座M之间提供主动的机械连接,然而,第三卡接部51和第三被卡接部25并不是必须的。 Although the third engagement portion 51 and the third locked portion 25 is preferable to use, because it can provide an active mechanical connection between the needle shield 40 and catheter hub M, however, the third engagement portion 51 and the second three are locking portion 25 is not required. 如果没有它们,可以利用针罩40和导管座M之间的摩擦力作为接合力, 这样的摩擦力比上述的主动机械接合力更容易克服。 If not they may be utilized friction between the needle shield 40 and catheter hub engaging force as M, such frictional engagement force than that of the active mechanical overcome more easily. 然而,在某些情形中,这样的摩擦力已经足够了。 However, in some cases, such friction is enough.

[0060] 挡片53的设置是用来在弹簧夹触发之后防止引入针在向前的方向上运动。 [0060] The flaps 53 are provided to prevent movement of the introducer needle in the forward direction after the spring clip is triggered. 这将会在下文中详细描述。 This will be described in detail below. 尽管在该挡片53上优选是没有孔,但是作为另外一种备选方案,挡片53上也可以设有孔,但是该孔的内径应当比引入针31的杆部直径大,但是小于引入针31 的增大部分33。 Although the flaps 53 are preferably free of holes, but as another alternative, the flap 53 may be provided with holes, but the inner diameter of the bore of the stem portion should be larger than the diameter of introducer needle 31 but smaller than the introduction portion 33 of needle 31 is increased. 这样,在弹簧夹触发之后,引入针的针尖可以插入到该孔中,但是引入针31 的增大部分却被该孔卡住。 Thus, after the trigger spring clip, the needle tip can be inserted is introduced into the hole, but the introduction of the enlarged portion 31 of the needle was stuck in the bore.

[0061] 附图4示出了导管和引入针组件在弹簧夹50的触发前的状态。 [0061] Figure 4 shows a state in which the catheter and introducer needle assembly 50 before triggering a spring clip. 在该状态中,弹簧夹50折叠在其压缩模式并通过开口60安装在针罩40的延伸通道42中。 In this state, the clip 50 is folded in its compressed mode and mounted through the opening 60 in the needle shield 42 extending passage 40. 弹簧夹50被引入针31抵靠而保持在这种压缩模式。 50 is introduced into the spring clip 31 against the needle is held in this compressed mode. 导管座M的末端被针罩40的延伸通道42的末端部分44环绕包围。 M is the end of catheter hub end of the needle shield 42 extending passage 40 surrounding portion 44 surrounded.

[0062] 图5示出了在弹簧夹50的弹簧触发前状态的另外一个视图。 [0062] FIG. 5 shows another view of the spring clip 50 in a state before the trigger. 该弹簧夹50被引入针31保持在压缩模式。 The spring clip 50 is introduced into the needle 31 is held in the compressed mode. 第三卡接部51与第三被卡接部25啮合,所述第三被卡接部25例如可以是位于导管座M上的凸缘。 The third engagement portion 51 and the third engaging portion 25 is locked, the third engagement portion 25 is, for example, may be located on the catheter hub flange M. 图6更加清楚地示出第三卡接部51在弹簧夹触发前所处的位置。 Figure 6 more clearly shows the position of the third engagement portion 51 is located in front of the trigger spring clip. 在该状态中,第三卡接部51伸入到延伸通道42的远端部分44内并与位于导管座M近端部上的第三被卡接部25啮合,这样就主动地防止了针罩40从导管座M移走。 In this state, the third engagement portion 51 projecting into the distal end of the channel 42 extending inside portion 44 and is engaged with a third locking portion 25 on the proximal end portion M of the catheter hub, so that the needle is prevented proactively cover 40 is removed from the catheter hub M.

[0063] 图7示出了弹簧夹触发前状态的另外一个视图。 [0063] FIG. 7 shows a further view of a state before triggering spring clip. 弹簧夹50被引入针31保持在压缩模式。 The clip 50 is introduced into the needle 31 is held in the compressed mode. 第三卡接部51伸入到环绕包围导管座M中的远端部分44中。 The third engagement portion 51 projecting into the distal end of the catheter surrounded by surrounding the seat portion 44 M.

[0064] 图8,9,和10示出了弹簧夹50触发后的状态。 [0064] FIGS. 8, 9, and 10 illustrate a state after the clip 50 triggered. 一旦导管21插入到血管中,医务人员将会从导管21中抽出引入针31。 Once the catheter 21 is inserted into a blood vessel, the medical personnel will be withdrawn from the catheter 31 introduced into the needle 21. 随着引入针31从导管21中的撤出运动,处于压缩模式的弹簧夹50将会在引入针31的针尖移动通过弹簧夹50后被引入针31释放,从而,弹簧夹50从其压缩模式弹开到其张开模式。 With the introduction of the spring clip 50 will needle 31 withdrawn from the conduit 21 movement, in the compressed mode introducer needle 31 is released by moving the needle tip after the introduction of the spring clip 50 in the needle 31, thereby the clip 50 from the compressed mode bounce to its open mode. 当弹簧夹50张开时,第三卡接部51将不再伸入到延伸通道42的末端部分44中,从而与位于导管座M上的第三被卡接部25脱离啮合。 When the open clip 50, the third engagement portion 51 will not extend into the extension 44 of the tip section passage 42, so that 25 out of engagement with the third engagement portion M is located on the catheter hub. 在这种情形中,针罩40可以沿着引入针31的轴线在向后的方向上自由移动。 In this case, the needle cover 40 can move freely in the rearward direction along the axis of the needle 31 is introduced. 由于弹簧夹50 的张开动作,弹簧夹50的挡片53将会从不封闭位于延伸通道42的近端部分上的孔46的位置移动到封闭该孔46的位置,引入针31将缩入到延伸通道的该近端部分中(参见图8, 10和12)。 Since the opening movement of the spring clip 50, the clip 50 of the flap 53 will never closed position hole 46 located on the proximal end portion of the passage 42 extends to a position closing the hole 46, the needle 31 is introduced into the compression extending to the proximal portion of the channel (see FIG. 8, 10 and 12). 这样,挡片53将会防止引入针31向前移动重新进入到导管21中。 Thus, the flap 53 will prevent the re-introduction of the needle 31 to move forward into the conduit 21. 同时,限位装置80将会限制引入针31在弹簧夹触发后移出到针罩40之外。 At the same time, the introduction of stop means 80 will limit the removal of the needle 31 outside of needle shield 40 after the spring clip is triggered. 在该实施例中,限位装置80可以是一个垫圈,该垫圈上有一个孔,这个孔的大小应该被引入针31针杆部分的直径稍大而比引入针31上直径增大的突变部分33要小。 In this embodiment, the stopper 80 may be a washer, the washer having a hole, the size of this hole should be slightly larger than the diameter of the introduction of the needle 31 and the needle bar than the upper needle 31 is introduced mutation increased diameter portion 33 to be small. 该垫圈可以安装在针罩40近端部分中的一个凹腔中,引入针31从垫圈的孔中穿过。 A cavity of the gasket may be mounted on the proximal portion of the needle cover 40, the needle 31 is introduced through the hole in the washer. 垫圈80将会挡住引入针31的直径增大部位33。 The gasket 80 will block the introduction of the needle 31 diameter portion 33 is increased. 这样,引入针31的远端部分将会被封闭在延伸通道42的近端部分45中而看不见。 Thus, the distal end portion of introducer needle 31 will be closed at the proximal end portion 42 extending in the channel 45 from view. 从而,针尖上的残留血迹将会被包围在延伸通道42的近端部分45内。 Thus, the residual blood on the needle tip will be surrounded by the channel 42 extending within a proximal end portion 45.

[0065] 垫圈80可以为圆形垫圈(参见图2),也可以为其它形状(如附图18中所示)。 [0065] The gasket may be circular gasket 80 (see FIG. 2), it may have other shapes (as shown in Fig. 18). 要求只是垫圈80的孔要稍大于引入针31杆部的直径但是小于直径增大的突变部分33。 Ferrule 80 is only required to be slightly larger than the diameter of the introduction of the needle 31 but smaller than the increased diameter portion of the mutated portion 33.

[0066] 在弹簧夹触发之后,位于弹簧夹50上的第一卡接部52 (使用者将看不见)啮合位于针罩40上的第一被卡接部47以防止弹簧夹50被重新压缩,从而防止了再使用。 [0066] After triggering the spring clip, the spring clip 50 on the first card portion 52 (user not visible) engaging the needle shield 40 is locked to the first portion 47 to prevent the spring clip 50 is recompressed to prevent the re-use. 借助于第一被卡接部47和第一卡接部52的啮合,将会防止弹簧夹50被重新设定而回到触发前的状态,从而防止了再使用。 By means of the engagement of the first locked portion 47 and the first engagement portion 52 to prevent the spring clip 50 will be reset and returned to the state before the trigger, thereby preventing re-use.

[0067] 如图10,12和13所示,在本实施例中充当限位装置的垫圈80被设置在针罩40的延伸通道42中。 [0067] As shown in FIG. 10, 12 and 13, serving as stop means in the present embodiment, the washer 80 is disposed in the needle shield 42 extending passage 40. 该垫圈80的孔的尺寸要容许引入针31的均勻针杆部分穿过但是要挡住引入针31的直径增大的突变部分33。 The size of the holes 80 of the gasket to permit the introduction of a uniform needle bar 31 through the portion of the needle, but the needle is introduced to block the increased diameter portion 33 of 31 mutations. 这样,垫圈80的孔将会挡住引入针31的直径增大部分33而阻止引入针31的进一步抽出。 Thus, the gasket 80 will block the aperture diameter increasing portion 31 of introducer needle 33 while preventing the introduction of the needle 31 is further withdrawn.

[0068] 直径增大的突变部分33可以例如为一个凸起,其位置应当在其被垫圈80挡住的时候使引入针31上的血液回流凹槽35 (如果有)和引入针的针尖被封闭在延伸通道42的近端部分45内。 [0068] The enlarged diameter portion 33 may be, for example, mutation of a protrusion, which position should the gasket 80 which is blocked when the introducer needle so that the blood returning groove on 3135 (if any) and the introduction point of the needle is closed channel 42 extending within a proximal end portion 45. 另外,所述凸起位于凹槽35的前方,这样在发生血液回流时,该凸起33不会对回流有减小作用。 Further, the protrusion 35 is positioned in front of the recess, so that when the backflow of blood occurs, the projection 33 will not have a reduced effect reflux. 该凸起可以为一个单独的铁环,其被安装在引入针31上,然而,该凸起优选通过挤压引入针31的相应区域的相反两点而形成,受到挤压的区域将会变扁而在与挤压垂直的方向上形成明显的凸起。 The projection may be a single hoop which is mounted on the introduction needle 31, however, the introduction of the projection is preferably formed opposite the respective two regions by extrusion of the needle 31, the region will become squeezed flat form significant projections in a direction perpendicular to the extrusion. 这样的凸起可以被称为“挤压凸起”。 Such projections may be referred to as "crush lobes."

[0069] 如图8所示,随着引入针31的进一步抽出动作,引入针组件30和针罩40将会与导管座M脱离,因为此时弹簧夹50的第三卡接部51与导管M的第三被卡接部25脱离啮合,并且引入针31的凸起被垫圈80挡住。 [0069] As shown, with the introduction of needle 31 further withdrawal operation, the introduction of the needle assembly 30 and needle shield 40 and catheter hub will be from 8 M, because the third engagement portion 51 of the clip 50 of the catheter M third portion 25 is snapped out of engagement, and the introduction of the needle boss 80 is blocked by the gasket 31.

[0070] 当然,第一卡接部52可以为其它不同于第一实施例的结构,例如,图15-18示出了本发明的安全装置的第二实施例,其中,弹簧夹50的第一卡接部52为通过折叠凸指的边缘而形成的止回卡齿。 [0070] Of course, the first engagement portion 52 may be different from the structure of the first embodiment for other embodiments, e.g., Figures 15-18 show a second embodiment of a safety device according to the present invention, wherein the spring clip 50 an engagement portion 52 of the retainer latch projection formed by folding the edge of the finger. 因此,所必须的是,第一卡接部52和第一被卡接部47应当被形成为它们的啮合要防止弹簧夹50在触发后被使用者重新再压缩。 Therefore, necessary that the first engagement portion 52 and the first engaged portion 47 is formed to be engaged to prevent their re-user clip 50 triggered after compression. 另外,垫圈80也并不一定是圆形,它也可以是其它形状(参见图18),所要求的只是垫圈80的孔的直径应当大于引入针31的杆部直径但是小于引入针31的直径增大的突变部分33。 Further, the gasket 80 may not be circular, it may be another shape (see FIG. 18), only the diameter of the bore of the gasket 80 should be greater than the desired diameter of the shaft portion of the introducer needle 31 but less than the diameter of needle 31 is introduced mutated portion 33 is increased.

[0071] 图19中示出了本发明安全装置的第三实施例。 [0071] FIG. 19 shows a third embodiment of the safety device of the present invention. 在该实施例中,限位装置80不是垫圈而是链绳,该链绳可以由塑料制成。 In this embodiment, the washer stopper 80 but not tether, the tether can be made of plastic. 在引入针31抽出之前,链绳80折叠在引入针针座34和针罩40之间,其一端连接着引入针针座34,另外一端连接着针罩40。 Before introducing needle 31 is withdrawn in the folded tether 80 is introduced between the needle hub 34 and needle cover 40, which is connected to one end of the introduction of the needle seat 34, the other end 40 is connected to the needle shield. 在引入针31抽出之后,链绳80的长度将会限制引入针31的针尖移出针罩40。 After introducer needle 31 withdrawn, the length of the tether 80 will limit the needle tip 31 of introducer needle 40 out of the needle shield. 图19中示出了引入针31 抽出之后的状态。 FIG. 19 shows a state after the introduction of the needle 31 withdrawn. 在第三实施例中,由于采用了链绳80,所以引入针31上的突变部分33不再需要。 In the third embodiment, since the tether 80, the needle 31 is introduced into the mutant portion 33 is no longer needed.

[0072] 值得一提的是,在第一和第二实施例中使用了垫圈80和增大的突变部分33,但是也可以采用其它结构。 [0072] It is worth mentioning that the use of gaskets 80 and 33 increase the mutated portion of the first embodiment and second embodiment, but other configurations may be employed. 比如,限位装置可以是一个单独的弹簧片,而突变部分33不是一个增大部分而是位于引入针31上的凹槽。 For example, the stopper may be a separate spring piece, a mutated portion 33 is not increased but the groove portion on the needle 31 is introduced. 在抽出引入针31时引入针31的凹槽移动通过所述单独的弹簧片时,该弹簧片将卡在所述凹槽中。 Moving groove 31 of introducer needle is withdrawn through the needle 31 is introduced into separate spring sheet, the sheet will be engaged in the spring recess. 另外,限位装置80也可以简单地为针罩40延伸通道42上的一个孔,该孔的内径小于引入针31的增大突变部分33而小于引入针的杆部直径。 Further, the stopper means 80 may simply extend a passage hole 42 for the needle shield 40, is smaller than the inner diameter of the bore of the introducer needle mutated portion 3331 increases and smaller than the diameter of the stem portion of the introducer needle.

[0073] 在引入针31抽出之后,针罩40将会握持在引入针31的远端部分上,因为限位装置80诸如,垫圈,链绳,或单独的弹簧片将会可靠地防止引入针31的远端部分移出针罩40 之外,即使引入针31相对于针罩发生转动也还是能可靠地防止。 [0073] After the introduction of the needle 31 withdrawn, the needle shield 40 will be held in the distal portion of the needle 31 is introduced, because the stopper 80, such as a gasket, tether, or a separate spring pieces will reliably prevent introduction 31 out of the distal end portion of the needle outside the needle shield 40, introducer needle 31 even if the rotational phase is still possible to reliably prevent the occurrence of the needle shield.

[0074] 在上文中,以具体实施例作为举例对本发明进行了描述,但是这些具体实施例不应当理解为是对本发明的限制,应当明白,本领域技术人员可以在具体实施例的基础上进行改变。 [0074] In the above, in specific embodiments by way of example of the present invention has been described, but these specific examples should not be construed as limiting the present invention, it will be appreciated that those skilled in the art can be made on the basis of specific embodiments of the change. 本发明的保护范围由所附的权利要求书限定。 The scope of the present invention by the appended claims.

Claims (26)

  1. 1. 一种用于导管和引入针组件(10)的安全装置,所述导管和引入针组件(10)包括:导管组件(20),具有:导管(21),具有远端和近端;和导管座(M),该导管座与所述导管流体连通,该导管座具有近端和远端,导管座的远端与导管的近端相连;引入针组件(30),具有:引入针(31),具有近端、远端以及纵向轴线;引入针针座(34), 固定到引入针(31)的近端,所述引入针(31)装在导管中;所述安全装置,包括:针罩(40),该针罩00)限定形成纵向延伸通道(42),并沿着横向于该纵向延伸通道G2)的纵向的方向设有开口(60),纵向延伸通道02)的直径至少稍大于引入针(31)的直径以便引入针(31)能够穿过所述纵向延伸通道(42),在所述针罩00) 上形成有至少一个第一被卡接部G7)和至少一个第二被卡接部;弹簧夹(50),设有至少一个第一卡接部(52)、至少一个第 CLAIMS 1. A safety device for a catheter and introducer needle assembly (10) of the catheter and introducer needle assembly (10) comprising: a catheter assembly (20) comprising: a catheter (21) having a distal end and a proximal end; and a catheter hub (M), the catheter hub in fluid communication with the conduit, the catheter hub having a proximal end and a distal end, a proximal end connected to the distal end of the catheter hub of the catheter; introducer needle assembly (30), comprising: introducing needle (31), having a proximal end, a distal end and a longitudinal axis; introducing needle holder (34) secured to the proximal end of the introducer needle (31), said introducing needle (31) mounted in the conduit; said safety device, comprising: a longitudinal direction of the needle shield (40), the needle shield 00) defining a longitudinal extending channel (42), along and transverse to the longitudinally extending channel G2) is provided with an opening (60), longitudinally extending channel 02) introducing at least slightly larger than the diameter of the needle (31) for introducing the diameter of the needle (31) can pass through said longitudinally extending passage (42) formed on the needle hub 00) has at least one first portion is snapped G7) and the at least one second portion is snapped; spring clip (50), provided with at least a first engagement portion (52), at least one of 二卡接部(5¾以及挡片(53),所述弹簧夹(50)通过所述开口(60)安装到针罩00)内,弹簧夹(50)的第二卡接部(55)不可逆地与针罩00)的第二被卡接部啮合,所述弹簧夹(50)适合于在一个大体上垂直于引入针纵轴线的平面内在引入针(31)抽出之前的压缩模式和引入针(31)抽出之后的张开模式之间伸缩;以及限位装置(80),用于在引入针(31)抽出之后,限制引入针(31)的远端移出针罩00)之外,其中,在引入针(31)抽出之前,所述弹簧夹(50)被穿过延伸通道0¾的引入针(31) 抵靠在所述压缩模式,而当抽出引入针时,引入针(31)移动通过弹簧夹(50)时,弹簧夹被所述引入针所释放而弹开到所述张开模式,在引入针抽出之后,弹簧夹的第一卡接部(52) 不可逆地啮合针罩G0)的第一被卡接部(47),所述挡片(5¾移动到引入针的远端前方而防止引入针往回移动,第 Two locking parts (5¾ and a flap (53), the spring clip (50) is mounted through the opening (60) to the needle shield 00), the spring clip (50) of the second engagement portion (55) irreversibly with needle shield 00) of the second engaged portion engaging a spring clip (50) adapted to a plane substantially perpendicular to the internal pin is introduced the longitudinal axis of the introducer needle (31) prior to withdrawal of the introducer needle and the compressed mode (31) stretching between the open mode after the withdrawal; and stop means (80) for, after introducing needle (31) withdrawn, the distal end of the needle is introduced restriction (31) of the needle shield out of 00) outside, wherein , prior to introduction of the needle (31) withdrawn, the spring clip (50) is introduced through the extension passage 0¾ needle (31) abuts against the compressed mode, when the withdrawal of the introducer needle, introducer needle (31) moves when the spring clip (50), the spring clip is released and the needle is introduced into the pop-open mode, after the introduction of the needle withdrawn, the first engagement portion (52) irreversibly engaging the spring clip needle shield G0 ) being first snap portion (47), said flap (5¾ moved forward to the distal end of the introducer needle to prevent the needle moves back is introduced, the 卡接部(5¾和第一被卡接部G7)之间的啮合防止弹簧夹(50) 在引入针(31)抽出之后被再压缩,而第二卡接部(5¾和第二被卡接部之间的啮合防止弹簧夹(50)被拔出针罩(40),限位装置(80)在引入针(31)抽出之后限制引入针(31)的远端移出针罩G0)之外。 The engagement between the locking portion (5¾ first engaged portion and G7) to prevent the spring clip (50) is re-compressed after introduction of the needle (31) withdrawn, the second engagement portion (5¾ and the second is snapped a distal portion to prevent engagement between the spring clip (50) is pulled out needle shield (40), stop means (80) after introducing the needle (31) to limit withdrawal of the introducer needle (31) out of the needle shield G0) outside .
  2. 2.如权利要求1所述的用于导管和引入针组件(10)的安全装置,其中,所述弹簧夹(50)还设有至少一个第三卡接部(51),当弹簧夹(50)处于引入针(31)抽出之前的压缩模式时,所述第三卡接部(51)主动地啮合形成于导管座04)上的第三被卡接部(25),而当弹簧夹(50)处于引入针抽出之后的张开模式时,所述第三卡接部(51)与第三被卡接部05) 脱离啮合。 2. A safety device for a catheter and introducer needle assembly (10) according to claim 1, wherein the spring clip (50) is further provided at least one third engagement portion (51), when the spring clip ( 50) is introduced into the needle (31) is withdrawn prior to the compressed mode, the third engagement portion (51) formed in the third actively engaged with the engagement portion (25) on 04) the catheter hub, when the spring clip (50) in an open mode after the introducer needle withdrawn, the third engagement portion (51) and the third locked portion 05) out of engagement.
  3. 3.如权利要求1或2所述的用于导管和引入针组件(10)的安全装置,其中,弹簧夹(50)为V形弹簧夹,V形的顶点朝向与开口(60)相反,当弹簧夹(50)处于张开模式时,限定V形的两条腿骑跨在引入针(31)的纵轴线上。 As claimed in claim 1 or 2 for a catheter and introducer needle assembly (10) of the safety device, wherein the spring clip (50) is a V-shaped spring clips, the vertex of the V-shaped towards the opening (60) opposite, when the spring clip (50) in the open mode, the V-shaped defining two legs straddling the introducer needle (31) of the longitudinal axis.
  4. 4.如权利要求3所述的用于导管和引入针组件(10)的安全装置,其中,弹簧夹(50) 限定V形的两条腿之一设有大体上平行于引入针(31)纵轴线的夹持臂(M),在该夹持臂(54)的两端各形成有一凸指,所述第一卡接部(5¾为形成于所述凸指之一上的止回卡齿, 所述第一被卡接部G7)为形成于针罩00)上的止回卡齿或凹口。 4. The safety device for a catheter and introducer needle assembly (10) according to claim 3, wherein the spring clip (50) defining one of the two legs of the V-shape is provided substantially parallel to an introducing needle (31) longitudinal axis of the clamp arm (M), is formed in each of opposite ends of the clamping arm (54) has a projecting finger, said first engagement portion (5¾ is formed in the projecting finger on one of the card check teeth, the first engaged portion G7) is formed on the needle shield 00) a check card teeth or notches.
  5. 5.如权利要求4所述的用于导管和引入针组件(10)的安全装置,其中,所述第一卡接部(5¾为形成于所述凸指之一上的倒刺。 5. The catheter as recited in claim and introducer needle assembly (10) of the safety device of claim 4, wherein said first engagement portion (5¾ is formed in the projecting finger on one of the barbs.
  6. 6.如权利要求4所述的用于导管和引入针组件(10)的安全装置,其中,所述第一卡接部(5¾为通过折叠所述凸指之一的边缘形成的凸缘。 6. A catheter as recited in claim and introducer needle assembly (10) of the safety device of claim 4, wherein said first engagement portion (5¾ through folding the projecting flange means of one of the edges is formed.
  7. 7.如权利要求3所述的用于导管和引入针组件(10)的安全装置,其中,所述第二卡接部(5¾为形成于限定形成V形的另外一条腿上的止回卡齿。 7. In addition a non-return leg as claimed in claim card for a catheter and introducer needle assembly (10) of the safety device of claim 3, wherein said second engagement portion (5¾ is formed to define a V-shape formed tooth.
  8. 8.如权利要求7所述的用于导管和引入针组件(10)的安全装置,其中,所述第二卡接部(55)为形成于限定形成V形的另外一条腿自由端上的凸指(56)上的止回卡齿。 A conduit as claimed in claim and introducer needle assembly (10) of the safety device of claim 7, wherein said second engagement portion (55) is formed to define a V-shape is formed additionally on the free end of the leg projection means on the retainer latch (56).
  9. 9.如权利要求1所述的用于导管和引入针组件(10)的安全装置,其中,所述限位装置(80)为安装在针罩00)上的垫圈,该垫圈具有一个孔,该孔的直径大于引入针(31)的杆部的直径而小于引入针(31)上的一个直径增大部分(33),在引入针抽出时,该垫圈将挡住所述直径增大部分(33)。 A catheter as claimed in claim 9 for introducing and needle assembly (10) of the safety device of claim 1, wherein said stop means (80) is a washer mounted on the needle shield 00), which washer has an opening, the diameter of the hole is larger than the diameter of the shaft portion of the introducer needle (31) and smaller than a diameter of the introducer needle (31) the enlarged portion (33), when the introducer needle withdrawn, the gasket will increase the blocking portion diameter ( 33).
  10. 10.如权利要求9所述的用于导管和引入针组件(10)的安全装置,其中,所述挡片(53)包括一个孔,该孔的直径大于引入针(31)的杆部而小于引入针的直径增大部分(33)。 Safety device for a catheter and introducer needle assembly (10) as claimed in claim 9, wherein said flap (53) comprises a bore, the bore diameter larger than the shaft portion of the introducer needle (31) and less than the increased diameter portion of the introducer needle (33).
  11. 11.如权利要求1所述的用于导管和引入针组件(10)的安全装置,其中,所述限位装置(80)可以为位于针罩00)的延伸通道上的一个孔,该孔的直径大于引入针的杆部而小于引入针的直径增大部分。 11. A safety device for a catheter and introducer needle assembly (10) according to claim 1 of the hole, wherein the limiting means (80) may be a hole in the needle shield 00) extending passage, the larger diameter than the shaft portion of the introducer needle and introducer needle smaller than the diameter of the enlarged portion.
  12. 12.如权利要求1所述的用于导管和引入针组件(10)的安全装置,其中,所述限位装置(80)为一链绳,该链绳的一端连接所述针座(34),而另外一端连接着所述针罩00)。 12. A safety device for a catheter and introducer needle assembly (10) according to claim 1, wherein said stop means (80) is a tether, the tether connected at one end of said needle hub (34 ), while the other end is connected to the needle hub 00).
  13. 13.如权利要求1所述的用于导管和引入针组件(10)的安全装置,其中,所述限位装置(80)为一个单独的弹簧片,该单独的弹簧片在引入针(31)抽出后将与位于引入针(31)上的环形凹槽部分啮合。 13. A safety device for a catheter and introducer needle assembly (10) according to claim 1, wherein said stop means (80) is a separate spring piece, the spring piece in a separate introducing needle (31 ) engaged with the annular groove portion located in the introducer needle (31) after the extraction.
  14. 14. 一种导管和引入针组件(10),所述导管和引入针组件(10)包括:导管组件(20),具有:导管(21),具有远端和近端;和导管座(M),该导管座与所述导管流体连通,该导管座具有近端和远端,导管座的远端与导管的近端相连;引入针组件(30),具有:引入针(31),具有近端、远端以及纵向轴线;引入针针座(34), 固定到引入针(31)的近端,所述引入针(31)装在导管中;安全装置,包括:针罩(40),该针罩00)限定形成纵向延伸通道(42),并沿着横向于该纵向延伸通道G2)的纵向的方向设有开口(60),纵向延伸通道02)的直径至少稍大于引入针(31)的直径以便引入针(31)能够穿过所述纵向延伸通道(42),在所述针罩00)上形成有至少一个第一被卡接部G7)和至少一个第二被卡接部;弹簧夹(50),设有至少一个第一卡接部(52)、至少一个第二卡接部(5¾以及挡 14. A catheter and introducer needle assembly (10), said catheter and introducer needle assembly (10) comprising: a catheter assembly (20) comprising: a catheter (21) having a proximal end and a distal end; and a catheter hub (M ), the catheter hub in fluid communication with the conduit, the catheter hub having a proximal end and a distal end, a proximal end connected to the distal end of the catheter hub of the catheter; introducer needle assembly (30), comprising: introducing a needle (31), having a proximal end, a distal end and a longitudinal axis; introducing needle holder (34) secured to the proximal end of the introducer needle (31), said introducing needle (31) mounted in the conduit; safety device, comprising: a needle shield (40) the longitudinal direction of the needle shield 00) defining a longitudinal extending channel (42), along and transverse to the longitudinally extending channel G2) is provided with an opening (60), longitudinally extending channel 02) at least slightly larger than the diameter of the introducer needle ( 31) for introducing the diameter of the needle (31) can pass through said longitudinally extending channel (42), is formed with at least one first engagement portion G7) and at least one second card is connected to the needle shield 00) portion; spring clip (50), provided with at least a first engagement portion (52), at least a second engagement portion (5¾ and stopper 片(53),所述弹簧夹(50)通过所述开口(60)安装到针罩00)内,弹簧夹(50)的第二卡接部(55)不可逆地与针罩00)的第二被卡接部啮合,所述弹簧夹(50)适合于在一个大体上垂直于引入针纵轴线的平面内在引入针(31)抽出之前的压缩模式和引入针(31)抽出之后的张开模式之间伸缩;以及限位装置(80),用于在引入针(31)抽出之后,限制引入针(31)的远端移出针罩00)之外;其中,在引入针(31)抽出之前,所述弹簧夹(50)被穿过延伸通道0¾的引入针(31) 抵靠在所述压缩模式,而当抽出引入针且引入针(31)移动通过弹簧夹(50)时,弹簧夹被所述引入针所释放而弹开到所述张开模式,在引入针抽出之后,弹簧夹的第一卡接部(52)不可逆地啮合针罩G0)的第一被卡接部(47),所述挡片(5¾移动到引入针的远端前方而防止引入针往回移动,第一卡接部(5¾和第一被卡接 Sheet (53), the spring clip (50) is mounted through the opening (60) to the needle cover) of 00, a spring clip (50) of the second engagement portion (55) irreversibly with the needle shield 00) of two engaged engagement portion, said spring clip (50) is adapted to open after a plane substantially perpendicular to the internal pin is introduced the longitudinal axis of the introducer needle (31) before withdrawing the compressed mode and introducer needle (31) withdrawn stretching between modes; and a stopper means (80) for, after introducing needle (31) withdrawn, the distal end of the needle is introduced restriction (31) of the needle shield out of 00) outside; wherein, in the introducer needle withdrawn (31) before, the spring clip (50) is introduced through the extension passage 0¾ needle (31) abuts against the compressed mode, and when the withdrawal of the introducer needle and introducer needle (31) through a spring clip (50), a spring the clamp is released and the needle is introduced into the pop-open mode, after the introduction of the needle withdrawn, the first engagement portion (52) irreversibly engaging the spring clip needle shield G0) of the first engaged portion ( 47), said flap (5¾ moved forward to the distal end of the introducer needle and introducer needle to prevent moving back, the first engagement portion (5¾ first is snapped G7)之间的啮合防止弹簧夹(50)在引入针(31)抽出之后被再压缩,而第二卡接部(5¾和第二被卡接部之间的啮合防止弹簧夹(50)被拔出针罩(40),限位装置(80)在引入针(31)抽出之后限制引入针(31)的远端移出针罩(40)之外。 The engagement between the G7) to prevent the spring clip (50) is re-compressed after introduction of the needle (31) withdrawn, the engagement between the second engagement portion (the engagement portion and a second spring clip prevents 5¾ (50) is pull the distal end of the needle shield (40), stop means (80) after introducing the needle (31) to limit withdrawal of the introducer needle (31) out of the needle shield (40) outside.
  15. 15.如权利要求14所述的导管和引入针组件(10),其中,所述弹簧夹(50)还设有至少一个第三卡接部(51),当弹簧夹(50)处于引入针(31)抽出之前的压缩模式时,所述第三卡接部(51)主动地啮合形成于导管座04)上的第三被卡接部(25),而当弹簧夹(50)处于引入针抽出之后的张开模式时,所述第三卡接部(51)与第三被卡接部0¾脱离啮合。 15. The catheter and introducer needle assembly (10) according to claim 14, wherein the spring clip (50) is further provided at least one third engagement portion (51), when the spring clip (50) is introduced into the needle (31) is withdrawn prior to the compressed mode, the third engagement portion (51) formed in the third actively engaged with the engagement portion (25) on 04) the catheter hub, when the spring clip (50) is introduced when the opening mode after the withdrawal of the needle, the third engagement portion (51) and the third portion is snapped 0¾ disengaged.
  16. 16.如权利要求14或15所述的导管和引入针组件(10),其中,弹簧夹(50)为V形弹簧夹,V形的顶点朝向与开口(60)相反,当弹簧夹(50)处于张开模式时,限定V形的两条腿骑跨在引入针(31)的纵轴线上。 16. The catheter and introducer needle assembly (10) of claim 14 or 15 wherein the spring clip (50) is a V-shaped spring clips, the vertex of the V-shaped towards the opening (60) In contrast, when the spring clip (as claimed in claim 50, ) when in the open mode, the V-shaped defining two legs straddling the longitudinal axis of the introducer needle (31).
  17. 17.如权利要求14所述的导管和引入针组件(10),其中,弹簧夹(50)限定V形的两条腿之一设有大体上平行于引入针(31)纵轴线的夹持臂(M),在该夹持臂(54)的两端各形成有一凸指,所述第一卡接部(5¾为形成于所述凸指之一上的止回卡齿,所述第一被卡接部G7)为形成于针罩00)上的止回卡齿或凹口。 17. The catheter and introducer needle assembly (10) of claim 14 wherein the spring clip (50) defining one of the two legs of the V-shape is provided substantially parallel to an introducing needle (31) as claimed in claim holder longitudinal axis, an arm (M), is formed in each of opposite ends of the clamping arm (54) has a projecting finger, said first engagement portion (5¾ projecting finger is formed on the non-return latch on one of said first a stuck portion G7) is formed on the needle shield 00) a check card teeth or notches.
  18. 18.如权利要求17所述的导管和引入针组件(10),其中,所述第一卡接部(5¾为形成于所述凸指之一上的倒刺。 18. The catheter according to claim 17 and introducer needle assembly (10), wherein said first engagement portion (5¾ is formed in the projecting finger on one of the barbs.
  19. 19.如权利要求17所述的导管和引入针组件(10),其中,所述第一卡接部(5¾为通过折叠所述凸指之一的边缘形成的凸缘。 19. The catheter according to claim 17 and introducer needle assembly (10), wherein said first engagement portion (5¾ said flange means of one of the convex edge formed by folding.
  20. 20.如权利要求17所述的导管和引入针组件(10),其中,所述第二卡接部(5¾为形成于限定形成V形的另外一条腿上的止回卡齿。 20. The catheter according to claim 17 and introducer needle assembly (10), wherein said second engagement portion (5¾ to form an additional non-return latch leg to define a V-shaped formation.
  21. 21.如权利要求20所述的导管和引入针组件(10),其中,所述第二卡接部(5¾为形成于限定形成V形的另外一条腿自由端上的凸指(56)上的止回卡齿。 21. The catheter and introducer needle assembly of claim 20 wherein the second engagement portion in claim (10), (5¾ to form a V-shaped projection further defined in the free end of one leg finger (56) the non-return latch.
  22. 22.如权利要求14所述的导管和引入针组件(10),其中,所述限位装置(80)为安装在针罩GO)上的垫圈,该垫圈具有一个孔,该孔的直径大于引入针(31)的杆部的直径而小于引入针(31)上的一个直径增大部分(33),在引入针抽出时,该垫圈将挡住所述直径增大部分(33)。 22. The catheter and introducer needle assembly (10) according to claim 14, wherein said stop means (80) is mounted on the needle shield GO) of the gasket, the gasket having a bore larger than the bore diameter diameter of the rod portion of the introducer needle (31) and smaller than the enlarged portion of the introducer needle (33) of a diameter (31), when the introducer needle withdrawn, the gasket blocking said increased diameter portion (33).
  23. 23.如权利要求22所述的导管和引入针组件(10),其中,所述挡片(5¾包括一个孔, 该孔的直径大于引入针(31)的杆部而小于引入针的直径增大部分(33)。 23. The stem portion 22 of the catheter and introducer needle assembly of claim (10), wherein the flap (5¾ comprises a hole, the hole is larger than the diameter of the introducer needle (31) being smaller than the diameter of the needle is introduced by most (33).
  24. 24.如权利要求14所述的导管和引入针组件(10),其中,所述限位装置(80)可以为位于针罩GO)的延伸通道上的一个孔,该孔的直径大于引入针的杆部而小于引入针的直径增大部分。 24. The catheter and introducer needle assembly (10) according to claim 14, wherein said stop means (80) may be a hole in the needle shield GO) extending passageway, is greater than the diameter of the bore of the introducer needle and smaller than the diameter of the stem portion of the introducer needle portion is increased.
  25. 25.如权利要求14所述的导管和引入针组件(10),其中,所述限位装置(80)为一链绳,该链绳的一端连接所述针座(34),而另外一端连接着所述针罩00)。 25. The catheter and introducer needle assembly (10) according to claim 14, wherein said stop means (80) is a tether, the tether connected at one end of said needle hub (34), while the other end connected to the needle hub 00).
  26. 26.如权利要求14所述的导管和引入针组件(10),其中,所述限位装置(80)为一个单独的弹簧片,该单独的弹簧片在引入针(31)抽出后将与位于引入针(31)上的环形凹槽部分啮合。 26. The catheter and introducer needle assembly (10) according to claim 14, wherein said stop means (80) is a separate spring piece, the spring piece in a separate introducer needle (31) after extraction with an annular groove portion in the retracted needle (31) on engagement.
CN 200610108071 2006-07-27 2006-07-27 Vessel having a safeguard device and introducing needle component CN101112638B (en)

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KR20060083609A KR101303268B1 (en) 2006-07-27 2006-08-31 Catheter and introducer needle assembly with safety device

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EP2478927B1 (en) * 2009-09-15 2018-01-03 Terumo Kabushiki Kaisha Catheter
CN102284109A (en) * 2010-06-18 2011-12-21 苏州康益明华生物医药科技有限公司 A storage safety sheath with the needle guard
CN102284110A (en) * 2010-06-18 2011-12-21 苏州康益明华生物医药科技有限公司 One kind of safety needle guard jacket
US8932259B2 (en) * 2010-09-13 2015-01-13 Becton, Dickinson And Company Catheter assembly
CN103510193A (en) * 2013-09-18 2014-01-15 苏州琼派瑞特电子科技有限公司 Down feather feeding pipe
KR101660713B1 (en) 2015-09-21 2016-09-28 이상운 Safety I.V. catheter set

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CN1146918A (en) 1995-06-07 1997-04-09 庄臣及庄臣医药有限公司 Catheter release mechanism
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KR101303268B1 (en) 2013-09-03 grant
CN101112638A (en) 2008-01-30 application

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