CN106362263A - Introducing needle protective device used for catheter assembly, catheter assembly and indwelling needle - Google Patents

Introducing needle protective device used for catheter assembly, catheter assembly and indwelling needle Download PDF

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Publication number
CN106362263A
CN106362263A CN201610767797.7A CN201610767797A CN106362263A CN 106362263 A CN106362263 A CN 106362263A CN 201610767797 A CN201610767797 A CN 201610767797A CN 106362263 A CN106362263 A CN 106362263A
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CN
China
Prior art keywords
catheter
needle
introducing
blood
catheter assembly
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CN201610767797.7A
Other languages
Chinese (zh)
Inventor
曹亦峰
裴鹏
魏薇
潘晔
沈长征
Original Assignee
苏州鱼跃医疗科技有限公司
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Application filed by 苏州鱼跃医疗科技有限公司 filed Critical 苏州鱼跃医疗科技有限公司
Priority to CN201610767797.7A priority Critical patent/CN106362263A/en
Publication of CN106362263A publication Critical patent/CN106362263A/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • 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
    • A61M25/09Guide wires
    • 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
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body

Abstract

The invention discloses an introducing needle protective device used for a catheter assembly, the catheter assembly and an indwelling needle, wherein the catheter assembly is provided with an introducing needle, a catheter and a catheter base, the catheter is positioned at the far end of the catheter base, the introducing needle is inserted in/pulled out of the catheter and the catheter base, the introducing needle protective device comprises a protective cover and a clamping piece, the protective cover is detachably matched with the inner surface of the catheter base, and an accommodating cavity is formed inside the protective cover; the clamping piece is positioned in the accommodating cavity, the far end of the introducing needle is provided with a sharp end, a blood return groove is formed in the introducing needle, and after the introducing needle is pulled out, the clamping piece is limited in the blood return groove, so that the sharp end is always positioned in the protective cover. According to the introducing needle protective device, the catheter assembly and the indwelling needle, through the match between the clamping piece and the blood return groove, the limiting for the sharp end of the introducing needle is realized, in addition, the structure is simple, and the sharp end of the introducing needle is stably kept in the protective cover.

Description

用于导管组件的引入针保护装置、导管组件及留置针 Means for introducing needle guard of the catheter assembly, the catheter and the indwelling needle assembly

技术领域 FIELD

[0001] 本发明涉及医用领域,尤其涉及一种用于导管组件的引入针保护装置、导管组件及留置针。 [0001] The present invention relates to the medical field, and particularly relates to a catheter introducing needle protection device for assembly, the catheter assembly and catheter.

背景技术 Background technique

[0002] 血管内导管用于将流体输入至患者体内、将流体从患者体内退出、或者用于监控患者血管系统的各种参数。 [0002] The intravascular catheter for feeding fluid into the patient, the fluid withdrawn from the patient, or the patient's vascular system for monitoring various parameters. 典型地,用引入针将导管引入患者血管内。 Typically, a catheter introducing needle introduced into patient's blood vessel. 导管被安装在具有尖锐的远端尖端的引入针上,导管的至少远端部分紧紧接合引入针的外表面以便在将引入针插入血管期间阻止导管的剥离。 Conduit is mounted in a sharp distal tip of the needle is introduced, at least the distal portion of the catheter tightly engages the outer surface of the introducer needle so that the needle is inserted into the blood vessel during introduction of the catheter to prevent release.

[0003] 临床医师通过患者皮肤将引入针插入至患者血管内。 [0003] The skin of the patient by the clinician introducing needle inserted into a patient's blood vessel. 一旦观测到回血,便将导管完全插入血管内,而后引入针从导管中退出,并将导管固定在适当位置上。 Upon return of blood is observed, put intravascular catheter is fully inserted, then introducing needle is withdrawn from the catheter, and the catheter is fixed in place. 一旦引入针从导管中退出,引入针就包括“被血污染的尖端”并且必须被合适地处理。 Once the needle is withdrawn from the catheter is introduced, including introducer needle "tip is contaminated with blood" and must be properly treated.

[0004] 最近几年,对于被血污染的尖端引起的意外针刺伤尤为关注。 [0004] In recent years, for accidental needle stick injuries are caused by blood contaminated with the tip of particular concern. 尽管意识到需要合适地处理被血污染的尖端,但是,被污染的引入针意外刺伤的现象仍旧发生,例如在紧急情况下,或者由于未注意或忽略造成引入针刺伤现象。 Although aware of the need to properly process the tip of contaminated blood, however, was stabbed accidental contamination phenomenon introducer needle still occur, for example in emergency situations, or ignored because no attention or needlestick injury caused by the phenomenon is introduced.

[0005] 为了解决上述问题,目前已经提出了各种针尖护罩。 [0005] In order to solve the above problems, there have been proposed various needle shield. 除了避免临床医师被针意外刺伤外,针尖护罩还使得在导管插入过程中暴露血的现象最小化。 In addition to avoiding the outer clinician accidentally stabbed needle, such that the tip shroud also is exposed to blood during catheterization phenomenon is minimized.

[0006] 但是,目前的针尖护罩的结构较复杂,且存在稳定性问题。 [0006] However, current tip shroud structure is complicated, and stability problems.

发明内容 SUMMARY

[0007] 本发明的目的在于提供一种导管组件的引入针保护装置、导管组件及留置针,其结构简单,且可将引入针尖端稳定保持在护罩内。 [0007] The object of the present invention is to provide a catheter introducing needle protection assembly of the device, a catheter, and the indwelling needle assembly, simple structure, and can be introduced stably retained within the needle tip shield.

[0008] 为实现上述发明目的,本发明一实施方式提供一种用于导管组件的引入针保护装置,所述导管组件具有引入针、导管及导管座,所述导管位于所述导管座的远端,所述引入针插入/拔出所述导管及所述导管座,所述引入针保护装置包括: [0008] In order to achieve the above object, an embodiment of the present invention to provide a catheter introducing needle protection assembly, said assembly having a catheter introducer needle, the catheter and catheter hub, said catheter in said distal catheter hub end of the introducer needle is inserted into / pulled out of said catheter and said catheter hub, said needle protection means introducing comprises:

[0009]护罩,其可拆卸地与所述导管座的内表面配合,且所述护罩内部形成一容纳腔; [0009] The shield removably engaged with an inner surface of said catheter hub and said inner shroud forming a receiving chamber;

[0010] 卡持件,其位于所述容纳腔内; [0010] The latching member, which is positioned said receiving chamber;

[0011] 其中,所述引入针的远端具有尖端,且所述引入针上具有回血槽,当所述引入针拔出完成时,所述卡持件限位于所述回血槽内而使得所述尖端始终保持在所述护罩内。 [0011] wherein the distal end of the introducer needle having a tip, and having a back groove of the blood introducing needle when the needle is pulled out to complete the introduction of the retainer member is in the limit back to the blood vessel such that the said tip remains within the shroud.

[0012]作为本发明一实施方式的进一步改进,所述卡持件包括至少一卡爪,所述卡爪具有弹性,当所述回血槽到达所述卡持件处时,所述卡爪的远端端部朝向所述回血槽运动而限位于所述回血槽内。 [0012] As a further embodiment of the present invention is improved, at least said retainer member comprises a pawl, the pawl having a resilient return when the blood reaches the groove at card holder member, said jaws back towards the distal end of the blood in said slot limiting movement back to the blood vessel.

[0013]作为本发明一实施方式的进一步改进,所述卡持件还包括底座,所述卡持件包括间隔分布在所述底座远端的若干卡爪。 [0013] As an embodiment of the present invention is a further improvement, it said retainer further comprises a base member, said retainer member comprises a plurality of jaws spaced in the distal end of the base.

[0014]作为本发明一实施方式的进一步改进,所述底座具有一贯穿孔,若干卡爪的远端端部围设成一开口,所述引入针穿过所述贯穿孔及所述开口而与所述卡持件相互配合。 [0014] As an embodiment of the present invention is a further improvement, said base having a through hole, the distal end portion of a plurality of jaws disposed around an opening into the introducing needle through the through hole and the opening and the latching member cooperating.

[0015]作为本发明一实施方式的进一步改进,当所述卡持件位于所述容纳腔内时,所述贯穿孔的中心与所述开口的中心的连线方向与所述引入针的拔出方向一致。 Connecting the pull direction of the central opening in the center of the [0015] As an embodiment of the present invention is further improved when the latching member in said receiving chamber, said through-hole of the introducer needle consistent direction.

[0016]作为本发明一实施方式的进一步改进,所述底座的外轮廓呈圆形,若干卡爪环绕所述底座的周缘设置。 [0016] As a further improvement to an embodiment of the present invention, the outer contour of the circular base, a plurality of jaws surrounding the peripheral edge of the base is provided.

[0017]作为本发明一实施方式的进一步改进,所述容纳腔呈圆柱状,所述容纳腔的内径与所述底座的外径相等。 [0017] As an embodiment of the present invention is a further improvement, the cylindrical receiving chamber, said receiving chamber and an outer diameter of an inner diameter equal to the base.

[0018]作为本发明一实施方式的进一步改进,于所述引入针拔出方向上,所述容纳腔具有第一长度,所述卡持件具有第二长度,所述第一长度大于所述第二长度。 [0018] As an embodiment of the present invention is a further improvement, the introduction of the needle is pulled in the direction of the receiving chamber has a first length, said retainer member having a second length, the first length being greater than the second length.

[0019] 为实现上述发明目的,本发明一实施方式提供一种导管组件,包括引入针、导管、导管座及如上任意一项技术方案所述的引入针保护装置,所述导管位于所述导管座的远端,所述引入针插入/拔出所述导管及所述导管座,所述引入针保护装置与所述导管座可拆卸的配合。 [0019] In order to achieve the above object, an embodiment of the present invention to provide a catheter assembly, comprising introducing means introducing needle protection needles, catheters, and catheter hub as recited in any one aspect, the conduit is located in said conduit the distal end of the housing, said introducing needle insertion / removal of the catheter and the catheter hub, the needle protection device and the introducing catheter hub removably fitted.

[0020] 为实现上述发明目的,本发明一实施方式提供一种留置针,包括如上所述的导管组件。 [0020] In order to achieve the above object, an embodiment of the present invention to provide an indwelling needle comprising a catheter assembly as described above.

[0021]与现有技术相比,本发明的有益效果在于:本发明一实施方式通过卡持件与回血槽的配合实现引入针尖端的限位,结构简单,且可将引入针尖端稳定保持在护罩内。 [0021] Compared with the prior art, the beneficial effects of the present invention is: a limiting embodiment of the present invention achieved by the introduction of the needle tip and the mating latching element back to the blood tank, a simple structure, and can be introduced stably holding the needle tip within the shroud.

附图说明 BRIEF DESCRIPTION

[0022]图1是本发明一实施方式的留置针结构示意图; [0022] FIG. 1 is a schematic view of the structure of an embodiment of the indwelling needle of the present invention;

[0023]图2是本发明一实施方式的弓I入针插入状态示意图; [0023] FIG. 2 is a bow embodiment of the present invention showing a state inserted into the needle I;

[0024]图3是本发明一实施方式的引入针、护罩、卡持件爆炸图; [0024] FIG. 3 is an embodiment of the introducer needle of the present invention, shield member exploded view of the retainer;

[0025]图4是本发明一实施方式的引入针拔出状态示意图; [0025] FIG. 4 is a schematic diagram of the introducer needle embodiment of the present invention a plug-out state;

[0026]图5是本发明一实施方式的弓丨入针保护装置示意图; [0,026] FIG. 5 is a schematic view of the embodiment of the bow Shu needle protection device according to an embodiment of the present invention;

[0027]图6是本发明一实施方式的卡持件示意图; [0027] FIG. 6 is a schematic view of an embodiment of the present invention the retainer;

[0028]图7是本发明一实施方式的卡持件爆炸图。 [0028] FIG. 7 is a card according to an embodiment of the present invention is an exploded view of holding member.

具体实施方式 Detailed ways

[0029]以下将结合附图所示的具体实施方式对本发明进行详细描述。 [0029] Hereinafter, specific embodiments shown in the drawings in conjunction with the present invention will be described in detail. 但这些实施方式并不限制本发明,本领域的普通技术人员根据这些实施方式所做出的结构、方法、或功能上的变换均包含在本发明的保护范围内。 However, these embodiments do not limit the present invention, the structure of those of ordinary skill in the art according to these embodiments made, methods, or conversion functions are included in the scope of the present invention.

[0030] 本发明内所描述的表达位置与方向的词,均是以器械操作者作为参照,靠近操作者的一端为近端,远离操作者的一端为远端。 [0030] Expression of the position and orientation of the word within the present invention described herein, are based on operator of the instrument as a reference, the operator is near one end of the proximal end, away from the distal end of the operator.

[0031] 如图1所示,本发明一实施方式的留置针100包括正压连接件10、导管组件20及连通正压连接件10及导管组件20的管道30。 Catheter [0031] As illustrated, an embodiment of the present invention 100 includes positive connecting member 10, the catheter assembly 20 and pressure communication conduit 30 connecting member 10 and the conduit assembly 20.

[0032] 所述正压连接件10是一种无针密封的输液接头,药液通过正压连接件10注入,而后通过管道30流入导管组件20中。 [0032] The pressure member 10 is connected to a non-infusion needle seal joint, via chemical injection pressure connecting member 10, and then through conduit 30 into the catheter assembly 20.

[0033] 导管组件20包括引入针21、导管(未标示)、导管座22及罩体23。 [0033] The catheter assembly 20 includes introducer needle 21, a catheter (not shown), the catheter hub 22 and the cover member 23.

[0034] 导管座22为中空结构,其与管道30相互导通。 [0034] The catheter hub 22 is hollow, and its mutual conduction pipes 30.

[0035] 导管位于所述导管座22的远端,且导管与导管座22密封连接,当引入针21插入时,导管位于引入针21的外侧。 [0035] The distal end of the catheter is located in catheter adapter 22 and the conduit 22 sealingly connected to the catheter hub when the introducer needle 21 is inserted, the catheter is located outside of the needle 21 is introduced.

[0036] 引入针21插入/拔出所述导管及所述导管座22,如图1所示,引入针21处于插入状态,引入针21凸伸出导管座22的远端。 [0036] The needle 21 is inserted into the introduction / extraction of the catheter and the catheter hub 22 shown in FIG. 1, the needle 21 is introduced in the inserted state, the introduction of the needle 21 extends beyond the distal projection 22 of the catheter adapter.

[0037] 所述引入针21的远端具有尖端211,且所述引入针21上具有回血槽212。 [0037] The distal end of the introducer needle 21 having a tip 211, and the introduction of the needle 21 having a slot 212 back to the blood.

[0038] 回血槽212实质为导通引入针21通道的槽体,且回血槽212沿引入针21拔出方向X延伸。 [0038] Blood Press substantive groove 212 is introduced into the tank 21 is turned needle passage, and back to the blood extraction needle 21 along a groove 212 extending in X direction is introduced.

[0039]引入针21的近端还连接有辅助插拔部24,所述辅助插拔部24与所述导管座22的近端活动连接,且辅助插拔部24带动所述引入针21进行插入/拔出操作。 [0039] The proximal end of introducer needle 21 is also connected to an auxiliary plug portion 24, the auxiliary plug portion 24 proximally connected to the catheter hub 22 and the auxiliary drive 24 of the plug portion 21 is introduced into the needle insertion / removal operation.

[0040] 罩体23用于保护引入针21及导管,当留置针100未使用时,罩体23套设在引入针21的导管的外侧,且罩体23与导管座22相互配合,当留置针100需使用时,拔下罩体23暴露出引入针21及导管即可。 [0040] The cover member 23 for protecting the introducer needle and catheter 21, catheter 100 when not in use, the outer sleeve 23 is provided in the catheter introducer needle 21 of the cover, and the cover member 23 and catheter hub 22 cooperate with each other, when the indwelling when the need to use a needle 100, and 23 to expose the catheter introducer needle 21 can disconnect the cover.

[0041] 在本实施方式中,结合图2至图4,所述导管组件20还包括引入针保护装置25。 [0041] In the present embodiment, in conjunction with FIGS. 2 to 4, the catheter assembly 20 further comprises a needle protection device 25 is introduced.

[0042] 所述引入针保护装置25包括护罩26及卡持件27。 [0042] The protection device 25 includes introducer needle shield 26 and latching member 27.

[0043] 护罩26可拆卸地与所述导管座22的内表面配合,且所述护罩26内部形成一容纳腔261。 [0043] The shroud 26 is removably inner surface of the catheter hub fitting 22 and the inner shroud 26 is formed a receiving chamber 261.

[0044] 卡持件27位于所述容纳腔261内。 [0044] The latching member 27 is located within the containment chamber 261.

[0045]当所述引入针21拔出完成时,结合图4,所述卡持件27限位于所述引入针21的回血槽212内而使得引入针21尖端211始终保持在所述护罩26内。 [0045] When the extraction is completed the introducer needle 21, in conjunction with FIG. 4, the latching member 27 is in the limit back to the blood introduced into the groove 212 of the needle 21 is introduced such that the needle tip 21 remains in the shroud 211 26 inside.

[0046] 这里,引入针21拔出完成是指引入针21相对护罩26朝向近端运动至极限位置,包括护罩26仍然位于导管座22内及护罩26、引入针21及卡持件27脱离导管座22的状态。 [0046] Here, the introduction of the needle 21 is pulled out to complete the introduction of the needle means 21 relative to the proximal movement of shield 26 toward the limit position, shield 26 includes a still located within the catheter hub 22 and the shield 26, introducer needle 21 and latching member catheter hub 27 from the state 22.

[0047] 本实施方式的回血槽212不仅起到回血作用,更重要的是,通过卡持件27与回血槽212的配合可以实现引入针21尖端211的限位。 [0047] back to the blood tank 212 of the present embodiment not only play the role of the blood back, more importantly, the blood fitting groove 27 and the return catch 212 may be implemented by limiting the introduction of the needle tip 21 to 211.

[0048] 本实施方式结构简单,且卡持件27与回血槽212稳定配合,可将引入针21尖端211稳定保持在护罩26内,避免被血污染的尖端211外露。 [0048] The embodiment according to the present embodiment is simple in structure, and latching member 27 and the mating groove 212 back to the blood stability, can be stably introduced into the needle 21 held in the tip shroud 211 26, to avoid blood contamination of the tip 211 exposed.

[0049]需要说明的是,参图3及图4,回血槽212与引入针21的外表面之间形成有台阶部213,当卡持件27位于回血槽212中时,由于台阶部213的限制作用,卡持件27的运动范围实质在回血槽212近端及远端的两个台阶部213之间。 [0049] Incidentally, reference FIGS. 3 and 4, back to the blood groove 212 is formed between the outer surface of the introducer needle 21 and the stepped portion 213, when the latching member 27 is positioned back into the blood reservoir 212, since the stepped portion 213 of the limiting, range of motion of the substance retainer member 27 between the two stepped portions 213 at a distal end 212 and proximal end back to the blood tank.

[0050] 如此,无论引入针21受到朝向近端还是朝向远端的作用力,卡持件27始终无法脱离回血槽212,且卡持件27始终在容纳腔261内,引入针21的尖端211的位置被限制,可有效避免引入针21的尖端211凸伸出护罩26的远端或是整个引入针21脱离护罩26。 [0050] Thus, regardless of the introduction of needle 21 by the biasing force toward the proximal or the distal end of latching member 27 has failed to return the blood from the groove 212, and the latching member 27 is always in the tip receiving cavity 261, 211 of introducer needle 21 position is limited, which can effectively prevent the introduction of the tip 211 protruding the needle shield 21 extends across the distal end 26 of introducer needle 21 or the shroud 26 off.

[0051]另外,当沿引入针21拔出方向X的作用力足够大时,引入针21、卡持件27及护罩26一起脱离导管座22,而引入针21的尖端211始终保持在护罩26内。 [0051] Further, when the extraction needle 21 is introduced along the X direction force is sufficiently large, the introduction of needle 21, latching member 27 and the shield 26 from catheter hub 22 together, while the tip 211 of the introducer needle 21 is kept in retaining cover 26.

[0052] 在本实施方式中,护罩26的外表面与导管座22的内表面为紧密配合关系,避免外界杂质通过护罩26进入导管座22内。 [0052] In the present embodiment, the inner surface of the shroud 26 and the outer surface of the catheter hub 22 in close fitting relationship, to avoid foreign objects through the shroud 26 into the catheter hub 22.

[0053] 另外,护罩26的远端还可设置一与导管座22紧密配合的塞头(未标示),所述引入针21穿过塞头而穿出导管座22,如此,当护罩26及引入针21 —起拔出导管座22后,仍可通过塞头实现导管座22端口的密封。 [0053] Further, the distal end of the shroud 26 may also be provided with a tight fitting catheter hub 22 plug (not shown), the needle 21 is introduced through the piercing plug and the catheter hub 22, so that when the shroud 26 and introducer needle 21 - removed from the catheter hub 22, seal 22 can still be achieved through the catheter hub port plug.

[0054] 在本实施方式中,护罩26还包括与容纳腔261导通的通槽262,所述通槽262的横截面大致为圆形,且通槽262的内径大致与引入针21的外径相等,以控制引入针21的插入/拔出方向。 [0054] In the present embodiment, the shroud 26 further includes a receiving chamber 261 through slot 262 is turned on, the cross section of the through groove 262 is substantially circular and the inner diameter of the through groove 262 of the introducer needle 21 is substantially equal to the outer, in order to control the introduction needle insertion / removal direction 21.

[0055] 在本实施方式中,所述卡持件27包括至少一卡爪271,所述卡爪271具有弹性,当所述回血槽212到达所述卡持件27处时,所述卡爪271的远端端部2711朝向所述回血槽212运动而限位于所述回血槽212内。 [0055] In the present embodiment, the latching member 27 comprises at least one pawl 271, the pawl 271 has elasticity, when the groove 212 reaches back to the blood at the retainer member 27, the pawl the distal end portion 271 toward the back 212 of the 2711 motion limiting groove blood back to the blood located within the groove 212.

[0056] 这里,卡爪271沿引入针21拔出方向X的截面大致呈倒“L”型,即呈倒钩型。 [0056] Here, the pawl 271 along introducer needle 21 out direction X cross-section substantially inverted "L" type, i.e. as a barb type.

[0057] 当所述回血槽212未到达所述卡持件27处时,卡爪271实质是与引入针21的外表面接触,卡爪271具有朝向远离引入针21方向变形的趋势;当所述回血槽212到达所述卡持件27处时,由于失去了引入针21外表面的抵持作用,卡爪271具有朝向靠近引入针21方向回缩的趋势,此时,卡爪271的远端端部2711正好卡持在回血槽212内。 [0057] When the groove 212 back to the blood does not reach the retainer member 27, the pawl 271 is in contact with the outer surface of the substance introduced into the needle 21, the pawl 271 has a tendency toward a direction away from the needle 21 is introduced modification; and when the when said groove 212 reaches back to the blood at the retainer member 27, due to the loss of 21 abuts the outer surface of the introducer needle holding action, the pawl 271 has a tendency toward a direction close to the introduction of the needle 21 retracted at this time, the pawl 271 away end to end portion 2711 just latching groove 212 in the return blood.

[0058] 在本实施方式中,结合图5至图7,所述卡持件27还包括底座272,所述卡持件27包括间隔分布在所述底座272远端的若干卡爪271。 [0058] In the present embodiment, in conjunction with FIGS. 5 to 7, the latching member 27 further includes a base 272, the retainer member 27 includes a distal end 272 spaced in the base 271 of the plurality of jaws.

[0059] 这里,通过若干卡爪271的均匀分布,可以实现卡爪271与回血槽212的稳定配合,且可卡持住任何位置的回血槽212。 [0059] Here, a plurality of uniformly distributed through the pawl 271, pawl 271 can be realized a stable complex with the groove 212 back to the blood, and can stay in any position of the latching groove 212 back to the blood.

[0060] 另外,所述底座272的外轮廓呈圆形,若干卡爪271环绕所述底座272的周缘设置,且若干卡爪271的远端端部2711聚拢。 [0060] Further, the base 272 has a circular outer contour, a plurality of claws 271 arranged around the periphery of the base 272, and the distal end portion of a plurality of pawl 271 2711 bunching.

[0061] 也就是说,此时卡持件27整体呈灯笼状。 [0061] That is, when the latching member 27 integrally as a lantern shape.

[0062] 需要说明的是,若干卡爪271可与底座272活动连接,但不以此为限,若干卡爪271也可与底座272相互固定。 [0062] Incidentally, a plurality of pawl 271 and the base 272 may be coupled activities, but not limited to, a plurality of pawl 271 and the base 272 may be fixed to each other.

[0063] 在本实施方式中,所述护罩26的容纳腔261呈圆柱状,且所述容纳腔261的内径与所述底座272的外径相等。 [0063] In the present embodiment, the shroud 261 to accommodate cylindrical chamber 26, and the inner diameter of the outer diameter of said receiving chamber 261 and the base 272 are equal.

[0064] 这里,卡持件27的底座272实质与容纳腔261的内表面相互抵接,如此,可避免卡持件27沿容纳腔261的径向晃动。 [0064] Here, the retainer 272 abuts the inner surface of each base member 27 of the receiving chamber 261 of the substance, thus can be avoided latching member 27 in the radial direction of the chamber 261 accommodating shaking.

[0065]另外,于所述引入针21的插入/拔出方向X上,所述容纳腔261具有第一长度Dl,所述卡持件27具有第二长度D2,所述第一长度Dl大于所述第二长度D2。 [0065] Further, the insertion needle 21 to the introduction / removal direction X, a receiving cavity 261 has a first length Dl, said retainer member 27 has a second length D2, Dl is greater than the first length the second length D2.

[0066] 也就是说,当卡持件27抵接容纳腔261的近端时,卡持件27的远端与容纳腔261的远端之间设置具有一空隙S,该空隙S可用于容纳回流的血液。 [0066] That is, when the latching member 27 abuts a proximal receiving chamber 261, the distal end of latching member 27 is provided between the distal end of the receiving chamber 261 has a clearance S, the space available to accommodate S the backflow of blood.

[0067] 卡持件27与容纳腔261可为相对固定的关系,但不以此为限,卡持件27也可于容纳腔261内沿引入针21拔出方向X前后移动。 [0067] The latching member 27 and the receiving chamber 261 may be relatively fixed relationship, but not limited to, the card holder 27 may be moved back and forth along the introducing needle within the receiving cavity 26,121 removal direction X.

[0068] 在本实施方式中,所述底座272具有一贯穿孔2721,若干卡爪271的远端端部2711围设成一开口2712,所述引入针21依次穿过所述贯穿孔2721及所述开口2712而与所述卡持件27相互配合。 [0068] In the present embodiment, the base 272 has a through hole 2721, a plurality of the distal end portion 271 of the pawl 2711 is provided to enclose an opening 2712, the introduction of the needle 21 passes through the through hole 2721 and the 2712 said opening with said cooperating latching element 27.

[0069] 所述贯穿孔2721的中心与所述开口2712的中心的连线方向与所述引入针21的插入/拔出方向X—致。 [0069] the connecting direction through the center of the center hole of the opening 2712 and 2721 of the insertion needle 21 is introduced / removal direction of X- induced.

[0070] 也就是说,贯穿孔2721、开口2712及护罩26的通槽262的中心线为同一直线,引入针21可以笔直穿过贯穿孔2721、开口2712及通槽262,从而避免引入针21受力弯曲。 [0070] That is, the through-hole 2721, the opening 2712 and through the center line of the groove 262 of the shroud 26 is the same line, the needle 21 is introduced through the through-hole 2721 may be straight, an opening 2712 and through slot 262, so as to avoid introducing needle 21 bending force.

[0071] 这里,当所述回血槽212位于所述卡持件27的远端时,若干卡爪271抵接在引入针21的外表面,所述开口2712具有第一开口口径dl,当所述回血槽212与所述卡持件27相互配合时,若干卡爪271的至少部分卡持在回血槽212内,所述开口2712具有第二开口口径d2,所述第一开口口dl径大于所述第二开口口径d2。 [0071] Here, when the blood back groove 212 at the distal end of the retainer member 27, a plurality of pawls 271 abuts against the outer surface of the introducer needle 21, the opening having a first opening diameter DL 2712, when the 212 back to the blood tank when said retainer member 27 and the cooperating, at least a plurality of the pawl portion 271 in the latching groove 212 back to the blood, the second opening 2712 having an opening diameter d2, the first opening is larger than the opening diameter dl opening said second diameter d2.

[0072] 这里,由于卡爪271具有弹性,当卡爪271进入回血槽212后,至少部分卡爪271会朝向开口2712中心回缩而实现进一步聚拢,开口口径变小。 [0072] Here, since the resilient pawl 271, the pawl 271 when the blood back into the slot 212, the pawl 271 will at least partially be achieved further gather toward the center opening 2712 is retracted, the opening diameter becomes smaller.

[0073]另外,所述第一开口口径dl与所述贯穿孔2721的开口口径相等,此时,贯穿孔2721与引入针21的外表面相互匹配。 [0073] Further, the first opening diameter dl equal to the opening diameter of the through hole 2721, at this time, the through hole 2721 and the outer surface of the introducer needle 21 match each other.

[0074] 需要说明的是,开口2712的形状与引入针21的外表面相互匹配,开口2712大致呈圆形,第一开口口径dl及第二开口口径d2实质是指开口2712的平均口径,或是开口2712的最小口径。 [0074] Incidentally, the opening shape of the outer surface 2712 of the introducer needle 21 match each other, a substantially circular opening 2712, the first opening and the second opening diameter dl substantial diameter d2 is the average diameter of the opening 2712, or 2712 is the smallest diameter of the opening. 但不以此为限,开口2712也可呈其他形状。 But not limited to, the opening 2712 may be other shapes.

[0075] 应当理解,虽然本说明书按照实施方式加以描述,但并非每个实施方式仅包含一个独立的技术方案,说明书的这种叙述方式仅仅是为清楚起见,本领域技术人员应当将说明书作为一个整体,各实施方式中的技术方案也可以经适当组合,形成本领域技术人员可以理解的其他实施方式。 [0075] It should be understood that while the present specification be described in terms of embodiments, but not every embodiment contains only a separate aspect, this narrative description only for the sake of clarity, those skilled in the art should be used as a specification overall, the embodiments of the technical solutions may be suitably combined to form other embodiments of the present art can be appreciated in the art.

[0076]上文所列出的一系列的详细说明仅仅是针对本发明的可行性实施方式的具体说明,它们并非用以限制本发明的保护范围,凡未脱离本发明技艺精神所作的等效实施方式或变更均应包含在本发明的保护范围之内。 [0076] A series of the detailed description set forth above is merely for the feasibility of specifically described embodiments of the present invention, they are not intended to limit the scope of the present invention, who have not departing from the spirit of the present invention the equivalent skills made embodiment or changes be included within the scope of the present invention.

Claims (10)

1.一种用于导管组件的引入针保护装置,所述导管组件具有引入针、导管及导管座,所述导管位于所述导管座的远端,所述引入针插入/拔出所述导管及所述导管座,其特征在于所述引入针保护装置包括: 护罩,其可拆卸地与所述导管座的内表面配合,且所述护罩内部形成一容纳腔; 卡持件,其位于所述容纳腔内; 其中,所述引入针的远端具有尖端,且所述引入针上具有回血槽,当所述引入针拔出完成时,所述卡持件限位于所述回血槽内而使得所述尖端始终保持在所述护罩内。 Needle protection device for introducing a catheter for assembly, said assembly having a catheter introducer needle, the catheter and catheter hub, the catheter distal end of the catheter adapter positioned, the introducer needle is inserted into / pulled out of the catheter and said catheter hub, characterized in that said introducing means includes a needle protection: shield removably engaging the inside surface of said catheter hub and said inner shroud forming a receiving chamber; latching member which in said receiving chamber; wherein the distal end of the needle having a tip is introduced, and introducing said groove having a blood return needle, when the needle is pulled out to complete the introduction of the retainer member is in the limit back to the blood tank such that the inner tip remains within the shroud.
2.根据权利要求1所述的用于导管组件的引入针保护装置,其特征在于,所述卡持件包括至少一卡爪,所述卡爪具有弹性,当所述回血槽到达所述卡持件处时,所述卡爪的远端端部朝向所述回血槽运动而限位于所述回血槽内。 2. The needle protection device for introducing a catheter assembly according to claim 1, wherein said retainer member comprises at least one pawl, the pawl having elasticity, back to the blood tank when the card reaches the when the holding member at a distal end of the pawl towards the return blood in said groove limiting the movement of blood back to the tank.
3.根据权利要求2所述的用于导管组件的引入针保护装置,其特征在于,所述卡持件还包括底座,所述卡持件包括间隔分布在所述底座远端的若干卡爪。 3. The needle protection device for introducing a catheter assembly according to claim 2, wherein said retainer further comprises a base member, said latching member including a distal end spaced in the number of base jaws .
4.根据权利要求3所述的用于导管组件的引入针保护装置,其特征在于,所述底座具有一贯穿孔,若干卡爪的远端端部围设成一开口,所述引入针穿过所述贯穿孔及所述开口而与所述卡持件相互配合。 The needle protection device for introducing a catheter assembly according to claim 3, characterized in that the base has a through hole, the distal end portion of a plurality of jaws disposed around an opening into the introducing needle through the through-hole and said opening with said latching member cooperating.
5.根据权利要求4所述的用于导管组件的引入针保护装置,其特征在于,当所述卡持件位于所述容纳腔内时,所述贯穿孔的中心与所述开口的中心的连线方向与所述引入针的拔出方向一致。 The needle protection device for introducing a catheter assembly according to claim 4, wherein, when said retainer member is located in said accommodating chamber, said central through-hole and the center of the opening out direction consistent with the direction of introduction of the connection needle.
6.根据权利要求3所述的用于导管组件的引入针保护装置,其特征在于,所述底座的外轮廓呈圆形,若干卡爪环绕所述底座的周缘设置。 6. The needle protection device for introducing a catheter assembly according to claim 3, characterized in that the outer contour of the circular base, a plurality of jaws surrounding the peripheral edge of the base is provided.
7.根据权利要求6所述的用于导管组件的引入针保护装置,其特征在于,所述容纳腔呈圆柱状,所述容纳腔的内径与所述底座的外径相等。 7. The needle protection device for introducing a catheter assembly according to claim 6, characterized in that the cylindrical receiving chamber, the receiving chamber with an inner diameter equal to the outer diameter of the base.
8.根据权利要求1所述的用于导管组件的引入针保护装置,其特征在于,于所述引入针拔出方向上,所述容纳腔具有第一长度,所述卡持件具有第二长度,所述第一长度大于所述第二长度。 The protective device for a catheter introducer needle assembly according to claim 1, characterized in that, in the direction of introduction of the needle is pulled out, the receiving chamber has a first length, said retainer member having a second length, the first length is greater than the second length.
9.一种导管组件,其特征在于包括引入针、导管、导管座及如权利要求1-8中任意一项所述的引入针保护装置,所述导管位于所述导管座的远端,所述引入针插入/拔出所述导管及所述导管座,所述引入针保护装置与所述导管座可拆卸的配合。 A catheter assembly, comprising any 1-8 introducer needle protection device according to the catheter distal end of the catheter adapter positioned introducer needle, a catheter, and the catheter hub as claimed in claim, the said introducer needle insertion / removal of the catheter and the catheter hub, the needle protection device and the introducing catheter hub removably fitted.
10.—种留置针,其特征在于包括如权利要求9所述的导管组件。 10.- species catheter, comprising a catheter assembly according to claim 9.
CN201610767797.7A 2016-08-30 2016-08-30 Introducing needle protective device used for catheter assembly, catheter assembly and indwelling needle CN106362263A (en)

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WO2015161294A1 (en) * 2014-04-18 2015-10-22 Becton, Dickinson And Company Multi-use blood control safety catheter assembly
CN205041892U (en) * 2015-06-25 2016-02-24 千禧光医疗有限公司 A keep somewhere needle for keeping somewhere release mechanism of needle and have this release mechanism
CN205073413U (en) * 2015-09-08 2016-03-09 北京大学深圳医院 Safe venous indwelling needle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103007384A (en) * 2006-11-03 2013-04-03 B. 布劳恩梅尔松根股份公司 Catheter assembly and components thereof
CN203075435U (en) * 2012-12-03 2013-07-24 康而富控股股份有限公司 Needle head protecting device for intravenous injection indwelling needle
CN103285450A (en) * 2013-03-25 2013-09-11 南通恒泰医疗器材有限公司 Multifunctional indwelling needle
WO2015161294A1 (en) * 2014-04-18 2015-10-22 Becton, Dickinson And Company Multi-use blood control safety catheter assembly
CN204121526U (en) * 2014-09-05 2015-01-28 广东百合医疗科技股份有限公司 Safety type venous indwelling needle
CN205041892U (en) * 2015-06-25 2016-02-24 千禧光医疗有限公司 A keep somewhere needle for keeping somewhere release mechanism of needle and have this release mechanism
CN205073413U (en) * 2015-09-08 2016-03-09 北京大学深圳医院 Safe venous indwelling needle

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