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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CN
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Prior art keywords
needle
catheter
introducer needle
portion
spring clip
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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, relates to a catheter and introducing the security device the 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 the patient incoming liquid, such as normal saline solution, various drugs and injection supplements the like, 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, the size of about or less in two inches. 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 the introducer needle one 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 the introducer needle are assembled, the introduction of the needle tip extending tip over the catheter and introduces an inclined face of the needle tip portion of the upper.

[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 to the skin of a patient into a distal vessel, said peripheral vascular not directly connected to the heart, but one of the central branch vessel directly connected with heart 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 completely pierced into the blood vessel. 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 vein beginning 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。 In order to confirm the assembly is properly positioned, medical personnel need to confirm whether the introduction of the needle and in the retracted reflux lumen needle at the proximal end with a back bleeding exists. 通常该回流腔构成导管座的一部分。 Usually the flashback chamber 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 withdrawal of the introducer needle and the catheter left in place, and then the fluid delivery device such as standard heparin cap or connect the cap to the conduit. 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 the "contaminated blood 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 one infected person through the exchange of body fluids to another person. Thus, 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 correctly handle the "contaminated blood in the needle," but unfortunately in certain medical environments, such as in an emergency or because they did not pay attention or neglect, 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。 While the spring clip is possible to prevent user access to the tip of the introducer needle, but it does not prevent the user from contact located residual blood on the needle tip, in particular more when provided with a number of circumferential holes of the introducer needle such as reflux recess 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 user being introduced acupuncture 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 US52155 ^ in the drawings, the catheter and introducer needle assembly having a plurality of arcuate projecting from the flange 48 the projection 50, the arcuate projections define forming a receiving seat 53, held at 53 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。 Tube end 38 defining forming a protrusion 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, the above mating relationship is not reliable, because it depends 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 one kind having a needle shield 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 introducing needle reinserted into the catheter purpose of reuse.

[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, still requires 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 introduction of the needle, or the entire assembly is reused after extracting the bow Shu into the needle, i.e., a user is introduced You can not spring clip pull out the needle re-set 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 communication with said conduit in fluid communication with the catheter hub having a proximal a proximal end and a distal end, the distal end of the catheter to 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, said introducer needle mounted in the conduit;

[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, the diameter of the longitudinal passageway extending at least slightly larger than the introducer needle diameter in order to introduce a needle capable of passing through said longitudinally extending passage Zhaoshang formed in said needle having at least a first engaged portion and at least one second engaged portion; spring clip, provided with at least one first snap portion, at least a second engagement portion and a flap, the spring clip through the opening is mounted to the needle shield, the spring clip second engagement portion irreversibly with the needle shield second is the card engagement portion, the said spring clip adapted to expansion and contraction between the open mode after a substantially introduced perpendicular to the introduction of the internal plane of the needle longitudinal axis prior to withdrawal of the needle compression mode and introducer needle withdrawal; and a stopper means for after the introduction of the needle withdrawn 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 extending through the passageway of the introducer needle in the compressed mode, and the spring clip second engagement portion is irreversibly engaged with the second engaged 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 withdrawal of the introducer needle and introducer needle moves through the spring clip, the spring clip by the introducer needle is released to spring open to the expanded 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 locked engagement between the contact portion to prevent the spring clip is recompressed after the introducer needle is withdrawn and the engagement between the second engagement portion and the second engagement portion to prevent the spring clip in the lead before withdrawal of the needle and, after being pulled out of the needle shield, stop means limiting the distal end of the introducer needle after introduction of the needle withdrawn in the proximal direction out of the needle shield 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 communication with said conduit in fluid communication with the catheter hub having a proximal a proximal end and a distal end, the distal end of the catheter to 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, said introducer needle mounted in the conduit;

[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 longitudinal extending channel, and the longitudinal direction of the longitudinally extending channel along a transverse provided with an opening, longitudinally extending channel diameter at least slightly larger than the introducer needle diameter to introducing needle capable of passing through said longitudinally extending passage Zhaoshang formed with at least a first engaged portion and at least one second locked portion of the needle; spring clip, provided with at least a first engagement 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 the distal end of the introducer needle out of the needle shield outside;

[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 extending through the passageway of the introducer needle in the compressed mode, and the spring clip second engagement portion is irreversibly engaged with the second engaged 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 withdrawal of the introducer needle and introducer needle moves through the spring clip, the spring clip by the introducer needle is released to spring open to the expanded 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 locked engagement between the contact portion to prevent the spring clip is recompressed after the introducer needle is withdrawn and the engagement between the second engagement portion and the second engagement portion to prevent the spring clip in the lead before withdrawal of the needle and, after being pulled out of the needle shield, stop means limiting the distal end of the introducer needle after introduction of the needle withdrawn in the proximal direction out of the needle shield 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] to be understood that the above-described advantages of the present invention as well as other advantages of the accompanying drawings described hereinbelow with reference to the drawings shown 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 the product of the introducer needle assembly;

[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 the catheter of the first embodiment and a partial view of the introduction of the needle assembly, which shows a state before the spring clip is triggered, in this state, the spring clip is folded in its compressed mode, and is introduced into the needle holder in 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 catheter of the first embodiment and further a partial view of the introducer needle assembly, which also shows the state before the spring clip trigger;

[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 needle cover spring clip before the spring clip is triggered;

[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 illustrates a security device in the first embodiment is another view in front of the spring clip is triggered;

[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 catheter according to the first embodiment and introducer needle assembly of another view of the spring clip 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 the catheter according to the first embodiment and introducer needle assembly after the spring clip is 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 showing a tip of the introducer needle after the spring clip of the trigger relative positional relationship of the spring clip file sheet;

[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] Figure 13 a view showing a gasket to block the introduction movement of the needle 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 spring clip of the second engagement portion and the second engaged the needle shield snap portion to prevent 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 after the spring clip is triggered;

[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 ways

[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 shown in the figures and the following 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] 1 and 2, the safety device with a first embodiment of the present invention 2 and introducer needle assembly of the whole 10 are identified by reference numerals. 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 and a proximal end of catheter 21 is secured 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 introducer needle 31 having a 32 and a proximal sharp distal tip formed by the inclined surface of the introduction needle holder 34 is 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 of introducer needle 31 comprises a portion of a mutant 33, for example, in the present embodiment, the mutation site 33 may be an increased diameter of the 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 returning to the 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, it may be no reflux recess 35, but may be provided integrally refluxed chamber introducing needle seat 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 catheter hub M of the same material. 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 device includes a needle shield 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 extending channel 42 at least slightly larger than the introduction of the diameter of the needle 31 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 lever needle 31 to easily pass through the extension passage 42. 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 the withdrawal of the introducer needle 31, while the proximal portion 45 in the withdrawal of the introducer needle after 31 introducing away needle 31 end portion of the closure therein. 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。 The safety device further comprises a stop means 80, which stop means to limit the needle tip movement 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 extending passage 42 in communication. 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)。 Prior to the introduction of extraction needle 31, the spring clip 50 will be folded into its 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 introduction of needle 31 ( 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, introducer needle 31 to release the spring clip 50, so that the clip 50 to restore its compressed mode to its expanded mode (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”)。 Tip moves introducer needle 31 during the withdrawal of the introducer needle 31 through the spring clip 50, which will trigger the clip 50 is moved from a compressed mode to the open mode (hereinafter referred to as "spring clip trigger").

[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 invention is formed with at least a first engagement portion 52, the at least one second engagement portion 55, at least one third engagement portion 51 and the flap 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 compression mode before the clip 50 is triggered, the third engagement portion 51 is adapted to engage with the snap portion formed on the catheter hub M 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。 Flap 53 is provided to block the introduction of the needle when the spring clip is triggered towards the distal direction. 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 the clip 50 of the first embodiment, although the spring clip 50 may be other shapes, but it may preferably be in Example V-shaped spring clip to the 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。 The clip 50 through the opening 60 is mounted in the needle cover 40, opposite to the direction of V-shaped apex pointing toward the opening 60 when the clip 50 is in its open mode, forming a V-shaped legs will straddle introducing needle 31 the longitudinal axis of the. 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 of 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 of its V-shape in a introducer needle 31 to the longitudinal axis 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 is to be adapted to transversely to the longitudinal axis of the introduction of needle 31 movement. 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 vertices may also 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 introduction of the needle 31 the longitudinal axis of the gripping arm extending from the one of 50 legs define a V-shaped 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 M has two protruding fingers. 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, the two projecting fingers extend substantially perpendicular to the introduction of the longitudinal axis of the needle 31 in the direction. 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 formed on the other projection refers. 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 the needle shield 40 of the first engaged portion 47 may be a non-return latch or grooves, 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] Further leg free ends form a V-shape defining the clip 50 is formed projecting fingers 56 through toward the outside V-shaped folding 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 mounted in the needle cover 40, projecting fingers 56 will be inserted is formed in the needle cover 40 a groove 49 (see FIG. 7), a second engagement portion nonreturn card teeth or 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 be, for example, by bending projecting finger flange free end 56 is formed by other configurations. 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 locked portion (not shown) should prevent the spring clip 50 is pulled out of 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。 Can not spring clip return to a state before triggering the case where [0058] the action of a first engagement portion 52 and the second locking portion 55, after the spring clip is triggered, the user without damaging the spring clip or a 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 refers to as being formed substantially parallel to the introduction of the needle projecting on the clamp arm M a longitudinal axis extending 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。 Third locked portion 25 can be a flange formed on the catheter hub of M, threads, grooves, check latches and the like. 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 preferably used, 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] disposed flaps 53 are used to prevent the introduction movement of the 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 in 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 spring clip is triggered, the introduction of the needle tip may be inserted into the hole, but the introduction of the needle enlarged portion 31 was the bore stuck.

[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] FIG. 4 shows a state of the catheter and introducer needle assembly before triggering the spring clip 50. 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 through the opening 60 is mounted in the needle shield extending passageway 40 42. 弹簧夹50被引入针31抵靠而保持在这种压缩模式。 The clip 50 is introduced into the needle 31 abuts against and 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。 End of the catheter hub M is the end of the needle shield extending channel 42 of the portion 44 surrounded 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 triggered state before. 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 being the card 25 engaging portion, the third locked portion 25 may be located on the catheter hub M of the flange. 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 another view of the spring clip pre-trigger status. 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 projects into the surrounding surrounds the distal end of catheter adapter M section 44.

[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 trigger spring clip 50. 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。 Clip 50 will With the introduction of the needle 31 from the catheter 21 withdrawn motion, in the compressed mode 31 releases the introducer needle after passing through the clip 50 in the tip moving introduction needle 31, whereby the spring clip 50 from its 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 when the clip 50 open, the third engagement portion 51 will not extend into the extension of the end 42 of portion 44 channels, so that 25 out of engagement with the third locked portion located on the catheter hub of M. 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 spring clip opening operation 50, the flap clip 50 of 53 will never closed located flow hole 46 on the proximal end portion extending channel 42 position to close the hole 46, the introduction of the needle 31 retracted into the to the proximal portion extending 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 introduction of the needle 31 moves forward again 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, stop means 80 will limit the introduction of needle 31 out of the needle shield beyond 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, has a hole of the gasket, the size of this hole should be introduced into a slightly larger diameter 31 of the needle bar of the needle and the ratio of the introduction needle 31 diameter increases the mutated 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 washer may be mounted on 40 the proximal portion of the needle cover, introducing needle 31 through the hole washer of. 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 diameter of needle 31 is increased portion 33. 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 a proximal end extending passage 42 in portion 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 proximal end extending channel 42 of the section 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 80 may be a circular gasket (see FIG. 2), 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。 It requires only the hole washer 80 is slightly larger than the introduction of the diameter of the needle 31 portion but smaller than the increased diameter 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 the spring clip trigger spring clip of the first card 50, contact portions 52 (the user will not be visible) engaging the needle shield 40 in the first locked 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 first locked engagement portion 47 and the first engagement portion 52 will prevent the clip 50 is 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] FIG. 10, 12 and 13, serving as stop means in the present embodiment, the washer 80 is disposed in the needle shield extending passageway 40 42. 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 gasket size of the holes 80 to allow the introduction of a uniform shank portion of the needle 31 to pass through but to block the introduction of the needle diameter increases mutation 31 of portion 33. 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 hole of the gasket 80 will block the diameter 31 of the introducer needle increases portion 33 while preventing the introduction of the needle is further withdrawn 31.

[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 increased diameter of the mutated portion 33 may be for example a protrusion, which position should it be the gasket 80 blocked when so introducer needle blood returning groove on 3135 (if any) and the introduction point of the needle is closed within a proximal end extending channel 42 of the section 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 positioned in front of the recess 35, so that when the backflow of blood occurs, the projection 33 will not reflux has reduced effect. 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 projection is preferably formed incorporated Xiangfan two o'clock corresponding region of the needle 31 by extrusion, the region being pressed will become flat form significant projections in a direction of extrusion vertical. 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 further withdrawal operation of the needle 31, the introduction of the needle assembly 30 and needle shield 40 will work with the catheter hub M from 8, because the third locking spring clip 50 contact portion 51 of the catheter M is the third locked portion 25 is disengaged, and the introduction of the needle projection is a gasket 80 to block 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 to another, e.g., Figures 15-18 show a second embodiment of a safety device according to the present invention, wherein the spring clip 50 is an engagement portion 52 of the retainer latch is formed by folding the convex refers to the edge. 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 should be formed to their engagement to prevent the spring clip 50 user re-compressed after being triggered. 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 shank 31 is introduced into the needle diameter but smaller than the 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 stopper 80 is not washer but 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。 Prior to the introduction of needle 31 withdrawn tether 80 is folded in between the introduction of the needle hub 34 and needle shield 40, having one end connected with the introduction of the needle seat 34, the other end is connected to the needle shield 40. 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, so that a mutation is introduced into the needle 31 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 increasing the mutated portion 33 in the first and second embodiments, but may be other configurations. 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, and the mutated portion 33 is not an enlarged portion, but the groove 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。 Groove mobile introduction needle 31 is withdrawn introducing needle 31 through the separate spring plates, the spring piece to the card in the groove. 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 the distal end portion of the needle 31 is removed needle shield than 40, even if the introducing needle 31 is rotated still possible to reliably prevent the needle shroud occurs.

[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 Safety device 1. 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 communication with said conduit in fluid communication with the catheter hub having a proximal end and a distal end connected to the proximal end of the distal end of the catheter to the catheter hub; 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), and along transverse to the longitudinally extending channel G2) is provided with an opening (60), longitudinally extending channel 02) a diameter at least slightly larger than the introducer needle (31) has a diameter so as to introduce the needle (31) can pass through said longitudinally extending passage (42) formed on the needle hub 00) has at least a first engaged portion G7) and at least a second engaged portion; 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) is adapted to a substantially perpendicular to the introduction of the internal plane of the needle to the longitudinal axis of the introducer needle (31) before withdrawing the compressed mode and introducing needle (31) stretching between the open mode after the withdrawal; and stop means (80) for, after introducing the needle (31) withdrawn limitations into the distal end of the needle (31) out of needle shield 00) outside, wherein , prior to introduction of the needle (31) withdrawn, the spring clip (50) is extending through the channel 0¾ the introducer 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 by the introducer needle is released to spring open to the expanded mode, after the introduction of the needle withdrawn, the first engagement portion (52) of the spring clip irreversibly engaging the needle shield G0 ) is first engaged portion (47), said flap (5¾ moved to the distal end in front of the introducer needle to prevent the introduction of the needle moves back, the first 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。 Snap portion engaged between (5¾ and the first engaged portion 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 the engagement between the portion prevents the distal end of the spring clip (50) is pulled out needle shield (40), stop means (80) after introducing the needle (31) withdrawn limitations into the 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) when the previously extracted compressed mode, said third engagement portion (51) actively engaged is formed in the third locked 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 clip, the apex toward the V-shaped opening (60) On the contrary, when the spring clip (50) in the open mode, defining the V-shaped legs astride introducing 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), in the formation of both ends of the clamping arm (54) has a projecting finger, said first engagement portion (5¾ is formed in said projecting means check card on the one 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。 As claimed in claim for a catheter and introducer needle assembly (10) of the safety device of claim 4, wherein said first engagement portion (5¾ is formed in the projecting finger barb on one.
  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。 As claimed in claim for a catheter and introducer needle assembly (10) of the safety device of claim 4, wherein said first engagement portion (5¾ through folding the projecting finger flange 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. Further a leg check card as claimed in claim 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-shaped 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。 As claimed in claim for a catheter and introducer needle assembly (10) of the safety device of claim 7, wherein said second engagement portion (55) is forming in defining the V-shaped additional leg free end of the projection means check card teeth (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)。 As claimed in claim for a catheter and introducer 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 block the enlarged diameter portion ( 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 diameter of the hole is larger than the shaft portion of the introducer needle (31) and less than the introducer needle increased diameter portion (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) of claim 1 the aperture claim, wherein said stop means (80) may be a hole in the needle shield 00) extending passage, the larger diameter than the shaft portion of the introducer needle being smaller than the diameter of the introducer needle 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, one end of the tether is connected to the 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 separate spring sheet introducing needle (31 ) annular groove portion engaged with is in the retracted needle (31) after 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 distal end and a proximal end; and a catheter hub (M ), the catheter hub communication with said conduit in fluid communication with the catheter hub having a proximal end and a distal end connected to the proximal end of the distal end of the catheter to the catheter hub; 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), and along transverse to the longitudinally extending channel G2) is provided with an opening (60), longitudinally extending channel 02) has a diameter at least slightly larger than 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 substantially perpendicular to the introduction of the internal plane of the needle to 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 the needle (31) withdrawn limitations into the distal end of the needle (31) out of needle shield 00) outside; wherein, in the introducer needle withdrawn (31) before, the spring clip (50) is extending through the channel 0¾ the introducer 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 to the distal end in front of the introducer needle to prevent the introduction of the needle 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 (and the second locked portion 5¾ prevent the spring clip (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) actively engaged is formed in the third locked 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 locked portion 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) 14 or 15 wherein the spring clip (50) is a V-shaped spring clip, the apex toward the V-shaped opening (60) In contrast, when the spring clip (50 claim ) is in an open mode, defining the V-shaped 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) one of the two legs define a V-shape is provided substantially parallel to an introducing needle (31) to the longitudinal axis of the clamping claim, an arm (M), in the formation of both ends of the clamping arm (54) has a projecting finger, said first engagement portion (5¾ is formed in said projecting means nonreturn 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 barb on one.
  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 a non-return latch further one leg to define a V-shape.
  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-shape to define additional projections on one leg free ends of fingers (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 hole diameter of the hole is larger than diameter of the shaft portion of the introducer needle (31) and smaller than the introducer needle enlarged portion (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)。 Shaft portion 23. The catheter according to claim 22 and introducer needle assembly (10), wherein the flap (5¾ includes an aperture diameter of the aperture is larger than the introducer needle (31) being smaller than the diameter increase of the introducer needle 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 passage, the diameter of the bore is larger than the introducer needle shank and smaller than the diameter of introducer needle enlarged portion.
  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, one end of the tether is connected to the 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 separate spring sheet introducing needle (31) withdrawn after the an annular groove portion in the retracted needle (31) engages.
CN 200610108071 2006-07-27 2006-07-27 Vessel having a safeguard device and introducing needle component CN101112638B (en)

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Application Number Priority Date Filing Date Title
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Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
CN 200610108071 CN101112638B (en) 2006-07-27 2006-07-27 Vessel having a safeguard device and introducing needle component
TW95130085A TWI367116B (en) 2006-07-27 2006-08-16 Catheter and introducer needle assembly with safety device
SG2011051620A SG173382A1 (en) 2006-07-27 2006-08-18 Catheter and introducer needle assembly with safety device
SG2006056675A SG139607A1 (en) 2006-07-27 2006-08-18 Catheter and introducer needle assembly with safety device
AU2006203664A AU2006203664B2 (en) 2006-08-23 Catheter and introducer needle assembly with safety device
KR20060083609A KR101303268B1 (en) 2006-07-27 2006-08-31 Catheter and introducer needle assembly with safety device
HK08108332A HK1117774A1 (en) 2006-07-27 2008-07-28 Catheter and introducer needle assembly with safety device

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CN101112638A true CN101112638A (en) 2008-01-30
CN101112638B true CN101112638B (en) 2011-06-08

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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
GB2508466C (en) 2013-08-21 2017-11-08 Braun Melsungen Ag 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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US5215528C1 (en) 1992-02-07 2001-09-11 Becton Dickinson Co Catheter introducer assembly including needle tip shield
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KR101303268B1 (en) 2013-09-03 grant
CN101112638A (en) 2008-01-30 application

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