WO2019024065A1 - Self-destructive safe medical needle - Google Patents

Self-destructive safe medical needle Download PDF

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Publication number
WO2019024065A1
WO2019024065A1 PCT/CN2017/095924 CN2017095924W WO2019024065A1 WO 2019024065 A1 WO2019024065 A1 WO 2019024065A1 CN 2017095924 W CN2017095924 W CN 2017095924W WO 2019024065 A1 WO2019024065 A1 WO 2019024065A1
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WO
WIPO (PCT)
Prior art keywords
needle
seat
self
protective cover
claw body
Prior art date
Application number
PCT/CN2017/095924
Other languages
French (fr)
Chinese (zh)
Inventor
陆军
Original Assignee
江苏采纳医疗科技有限公司
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Application filed by 江苏采纳医疗科技有限公司 filed Critical 江苏采纳医疗科技有限公司
Publication of WO2019024065A1 publication Critical patent/WO2019024065A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/27—General characteristics of the apparatus preventing use
    • A61M2205/273—General characteristics of the apparatus preventing use preventing reuse, e.g. of disposables
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/12—Blood circulatory system

Definitions

  • the invention relates to the field of medical instruments, in particular to a self-destructing safety medical needle.
  • Medical needle used for infusion or blood collection, is a commonly used medical device. Ordinary medical infusion needle can be reused. If it is not effectively cleaned and disinfected, it is easy to cause cross infection between patients. In order to solve this problem, one-off Infusion needles are widely used, but such disposable infusion needles are required to be disposable at the management system level. At the same time, in order to avoid the secondary use of the infusion needle and the stab wounding of the staff after use or destruction, the serious consequences of cross-infection of the virus have been caused. Now, safe infusion needles have been widely used in the medical field, and medical regulations in many countries are more explicit. A safe infusion needle must be used.
  • the object of the present invention is to provide a self-destructing safety medical needle capable of achieving self-destruction, avoiding secondary use, simple structure, easy manufacture, low cost and good locking effect.
  • the self-destructing safety medical needle comprises: a protective cover having an inner cavity, a needle seat reciprocable in the inner cavity and having a needle tube, and a catheter seat interlocking with the needle seat, wherein the protective cover is provided with a blocking claw And a stop step, the stop step is located on the inner cavity wall of the protective cover, and the needle seat is correspondingly provided with a limiting groove for abutting against the blocking claw body, And a stop end face interlocking with the stop step, wherein the stop step cooperates with the stop end face for preventing the needle seat from continuing to move, and the blocking claw body cooperates with the limit groove for preventing the reverse movement of the needle seat. That is, when the rear section of the needle seat passes, the front end of the needle seat passes, and the stop end surface of the front section of the needle seat is caught on the step to form a lock structure.
  • the protective cover is a hollow cylinder which is open at one end and half open at the other end, wherein the opening allows the entry and exit of the needle tube, the stop step is located between the opening and the blocking claw body, and the stop end surface is located at the needle tube and the limiting concave Between the slots, when the latch is engaged, the stop end faces abut against the stop step plane, and the blocking claw body abuts against the plane of the limit recess.
  • the blocking claw body is formed by symmetrical opening in an axial direction on an end near the protective cover close to the catheter seat, and the blocking claw body is a claw body having a triangular shape on the head.
  • the stop step is located at a 90 degree rotational position of the root of the blocking claw. More preferably, both the blocking claw body and the stopping step are symmetrically disposed.
  • the limiting groove is disposed at a front end of the needle seat, and the stopping end surface is a rear end surface of the limiting groove at the front end of the limiting groove formed by the bottom of the groove of the limiting groove extending forward and upward mesa.
  • a plurality of strip-shaped protrusions are disposed in the axial direction of the front end of the protective cover, the length of the strip-shaped protrusions is not less than the length of the needle tube, and the outer surface of the front end of the needle holder is cooperatively disposed There are as many visible grooves as the strip-shaped projections to form the viewing window.
  • the number of the strip-shaped projections is two, and is arranged symmetrically up and down.
  • the needle seat is further provided with a safety wire, and the safety wire is disposed on the needle seat
  • the protective cover is close to the edge line corresponding to one end of the catheter seat and the needle seat, for confirming that the needle seat has been completely locked.
  • a surface of the protective cover is further provided with a positioning structure for positioning the butterfly wing, and the butterfly wing is also provided with an engaging portion for preventing the butterfly wing from rotating left and right and sliding backward.
  • the protective cover is adjacent to the end of the catheter socket and is a cylindrical and conical body with a through hole sequentially connected, and the blocking claw body is made by opening a gap in the cone portion.
  • the catheter hub is engaged with the locking window
  • the catheter socket comprises a pair of fastening arms that are elastically deformed and engaged with the corresponding locking window, and a through hole communicating with the catheter.
  • the end of the fastening arm is provided with an outwardly extending convex portion and is locked to the inner wall of the locking window when the pressure is deformed, wherein a gap is allowed between the fastening arm and the catheter seat to allow elastic deformation.
  • the other end of the catheter is further connected with a puncture needle hub with a puncture needle through a connecting seat, and the puncture needle is further provided with an IR gel.
  • a needle tube fixing member is disposed on the front end of the needle holder, and the needle tube fixing member is fixed in front of the stop end surface.
  • the needle holder As the catheter seat is withdrawn, the needle holder is slid in the protective cover, and the front ends of the two claws of the protective cover are lightly touched on the tube body of the needle seat, and the resistance of the hand feels gradually becomes larger during the withdrawal process.
  • the two strip-shaped protrusions in the protective cover slide in the two grooves at the front end of the needle seat to prevent the blood collecting needle from being cut and damaged to the inner wall of the venous blood vessel by rotation in the venous blood vessel.
  • the front part of the claw body is triangular, and the needle seat slides in a small range, and the claw to be blocked completely falls on In the limiting groove at the front end of the needle seat, the triangular shape of the front portion of the claw body abuts against the end surface in the groove of the needle seat, thereby preventing the needle holder from being pushed forward.
  • the needle seat slides in a small range, and the two stop steps are located on the protective cover to block the 90-degree rotation position of the root of the claw body.
  • the needle seat is prevented from being blocked. Pull out the protective cover all the way.
  • the clear sound until the safety line is completely exposed and/or heard indicates that the front end of the needle holder is completely locked by the claw of the protective cover.
  • the invention has the advantages of compact structure, self-destruction, anti-pull and anti-launch strength, strong and strong, can prevent secondary use to the maximum extent, avoid cross infection between patients, and avoid secondary use of the infusion needle and after use or destruction
  • the staff is stabbed, and the structure of the lock structure is clever.
  • the structure of the protective cover and the needle seat are simple and can be integrally formed. It is easy to produce, which can greatly reduce the production difficulty, save costs and shorten the construction period.
  • the needle can be prevented from rotating and scratching the inner wall of the blood vessel during the process of needle withdrawal, and the safety line of the lock is secured to ensure that the lock is in place, and the butterfly wing is also fixed to prevent the needle from being rotated, so the invention is reasonable and practical. It is worth promoting.
  • Figure 1 is an exploded perspective view showing the overall structure of the present invention
  • FIG. 2 is a schematic view showing the connection structure of the needle seat, the protective cover and the catheter seat;
  • Figure 3 is a cross-sectional view showing the connection structure of the hub, the protective cover and the catheter hub;
  • Figure 4 shows the matching groove and the blocking claw body when the needle seat and the protective cover are interlocked with each other. Schematic;
  • FIG. 5 is a structural schematic view showing a matching of a stop end surface and a stop step when the needle holder and the protective cover are interlocked;
  • Figure 6 is a schematic structural view of the needle holder and the protective cover when they are interlocked
  • Fig. 7 is a schematic structural view of a needle hub.
  • the present invention provides a self-destructing safety medical needle, a self-destructing safety medical needle, comprising: a protective cover 10 having a lumen 12, a needle holder 20 that reciprocates in the inner chamber 12 and has a needle tube 22, and a catheter holder 28 that is engaged with the needle holder 20, wherein the protective cover 10 is provided with a blocking claw body 120 and a stop step 122, the stop position
  • the step 122 is located on the wall of the inner cavity 12 of the protective cover 10, and the needle seat 20 is correspondingly provided with a limiting groove 24 that abuts against the blocking claw body 120, and a stop end surface 26 that interlocks with the stopping step 122.
  • the stop step 122 cooperates with the stop end face 26 for preventing the needle seat 20 from continuing to move, and the blocking claw body 120 cooperates with the limit groove for preventing the needle seat 20 from moving in the reverse direction. That is, when the rear section of the needle seat passes, the front end of the needle seat passes, and the stop end surface of the front section of the needle seat is caught on the step to form a lock structure.
  • the protective cover 10 is a hollow cylinder which is open at one end and half open at the other end, wherein the opening allows the entry and exit of the needle tube 22, and the stop step 122 is located between the opening and the blocking claw body 120, the stop end surface 26 is located at the needle tube 22 and Between the limiting recesses 24, when the latching is engaged, the stopping end surface 26 is in abutting contact with the plane of the stopping step 122, and the blocking claw body 120 is in abutting contact with the plane of the limiting recess 24.
  • the blocking claw body 120 is formed by opening a gap symmetrically in the axial direction near the end of the protective cover 10 close to the catheter seat 28.
  • the blocking claw body 120 has a triangular-shaped claw body.
  • the stop step 122 is located at a 90 degree rotational position of the root of the blocking claw body 120. More preferably, both the blocking claw body and the stopping step are symmetrically disposed.
  • the limiting groove 24 is disposed at the front end of the needle holder 20, and the stopping end surface 26 is a limiting groove 24 formed by the bottom of the groove of the limiting groove (24) extending forward and upward and forming an outer surface of the needle seat. The rear end face of the front end.
  • a plurality of strip-shaped protrusions 19 are disposed in the axial direction of the front end of the protective cover 10.
  • the length of the strip-shaped protrusions 19 is not less than the length of the needle tube 22, and the outer surface of the front end of the needle holder 20 is matched.
  • the same number of visible grooves 29 as the strip-shaped projections 19 are provided to form an observation window.
  • the number of the strip-shaped protrusions 19 is two, and is arranged symmetrically up and down.
  • the needle holder 20 is further provided with a safety thread 23 which is disposed at the end of the needle holder 20 when the stopper body 120 of the protective cover 10 is completely locked.
  • the protective cover 20 is adjacent to the end of the catheter holder 28 and the needle holder.
  • the corresponding edge line of 20 is used to confirm that the needle holder 20 has been completely locked.
  • a positioning structure 11 is further disposed on the surface of the protective cover 41 for positioning the butterfly wing 16.
  • the butterfly wing 16 is also provided with an engaging portion 162 for preventing the butterfly wing 16 from rotating left and right and sliding backward.
  • One end of the protective cover 10 near the catheter hub 28 is a cylindrical and conical body with a through hole sequentially connected, and the blocking claw body 120 is made by opening a gap in the cone portion.
  • the locking window 14 is engaged with the catheter hub 28, and the catheter hub 28 includes a pair of fastening arms 280 that are engaged with the corresponding locking window 14 and elastically deformable, and a through hole 282 that communicates with the catheter 30.
  • the stop end face 26 is located between the needle tube 22 and the limit groove 24, and at the same time prevents the needle hub 20 from being pulled back out of the protective cover 10.
  • the end of the fastening arm 280 is provided with an outwardly extending convex portion and is locked to the inner wall of the locking window 14 when deformed under pressure. There is a gap between the fastening arm 280 and the catheter hub 28 that allows elastic deformation.
  • the other end of the catheter 30 is further connected with a puncture needle hub 40 with a puncture needle through a connecting seat 42, and the puncture needle 44 is further provided with an IR gel 46.
  • a needle tube fixing member 27 is provided on the front end of the needle holder 20, and the needle tube fixing member 27 is fixed in front of the stop end surface 26.
  • the stop end face 26 is located between the bottom of the needle tube 22 and the limit groove 24.
  • the stop step 122 prevents the needle holder 20 from continuing to move, and the blocking of the claw body 120 prevents the needle holder 20 from moving in the reverse direction.
  • the stop end face 26 is in planar contact with the stop step 122, and the blocking pawl 120 is in a planar abutting contact with the stop recess 24.
  • the two strip-shaped protrusions in the protective cover slide in the two grooves at the front end of the needle seat to prevent the blood collecting needle from being cut and damaged to the inner wall of the venous blood vessel by rotation in the venous blood vessel.
  • the front part of the claw body is triangular, and the needle seat slides in a small range.
  • the claw body to be blocked completely falls in the limiting groove at the front end of the needle seat, and the triangular shape of the front part of the claw body abuts against the end surface in the groove of the needle seat. That is, the purpose of preventing the needle holder from being pushed forward is achieved.
  • the needle seat slides in a small range, and the two stop steps are located on the protective cover to block the 90-degree rotation position of the root of the claw body.
  • the needle seat is prevented from being blocked. Pull out the protective cover all the way.
  • the clear sound until the safety line is completely exposed and/or heard indicates that the front end of the needle holder is completely locked by the claw of the protective cover.
  • the invention has the advantages of compact structure, self-destruction, anti-pull and anti-launch strength, strong and strong, can prevent secondary use to the maximum extent, avoid cross infection between patients, and avoid secondary use of the infusion needle and after use or destruction
  • the staff is stabbed, and the structure of the lock structure is clever.
  • the structure of the protective cover and the needle seat are simple and can be integrally formed. It is easy to produce, which can greatly reduce the production difficulty, save costs and shorten the construction period.
  • the needle can be prevented from rotating and scratching the inner wall of the blood vessel during the process of needle withdrawal, and the safety line of the lock is secured to ensure that the lock is in place, and the butterfly wing is also fixed to prevent the needle from being rotated, so the invention is reasonable and practical. It is worth promoting.

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

A self-destructive safe medical needle comprises a protective casing (10) provided with an inner cavity (12), a needle seat (20) capable of making reciprocating movement in the inner cavity (12) and provided with a needle tube (22), and a catheter seat (28) mutually clipped to the needle seat (20). Stopping claw bodies (120) and retaining steps (122) are disposed on the protective casing (10). The retaining steps (122) are located on the wall of the inner cavity (12) of the protective casing (10). Limiting grooves (24), pressing against and matching the stopping claw bodies (120), and retaining end faces (26) matching the retaining steps (122) in a mutually-locked manner, are correspondingly disposed on the needle seat (20). The self-destructive safe medical needle has an exquisite structure, and the intensity of pull-out prevention and push-out prevention for achieving self-destruction are strong and firm. In addition, the protective casing (10) and the needle seat (20) have a simple structure each and can be integrally formed, so that the production is very easy, the production difficulty is greatly reduced, costs are reduced and the production period is shortened, and the defective rate is low.

Description

自毁式安全医用针Self-destructive safety medical needle 技术领域Technical field
本发明涉及医用器械领域，尤其涉及一种自毁式安全医用针。The invention relates to the field of medical instruments, in particular to a self-destructing safety medical needle.
背景技术Background technique
医用针，应用于输液或采血，是一种常用的医疗器具，普通的医用输液针由于可以重复使用，若未能有效清洁消毒，容易在患者间造成交叉感染，为了解决这一问题，一次性输液针得到了广泛的使用，但这种一次性输液针仅是在管理制度层面要求其实现一次性使用。同时为了避免输液针二次使用及在使用后或销毁过程中刺伤工作人员，造成病毒交叉感染的严重后果，现在安全输液针在医疗领域中已广泛被使用，许多国家的医疗法规更明文规定必须使用安全输液针。近年来人们研发出许多种带有自动销毁装置的一次性安全输液针，从技术层面保障了其只能一次性使用的功能，但结构复杂，成型困难或难以成型，次品率高，成本较高。Medical needle, used for infusion or blood collection, is a commonly used medical device. Ordinary medical infusion needle can be reused. If it is not effectively cleaned and disinfected, it is easy to cause cross infection between patients. In order to solve this problem, one-off Infusion needles are widely used, but such disposable infusion needles are required to be disposable at the management system level. At the same time, in order to avoid the secondary use of the infusion needle and the stab wounding of the staff after use or destruction, the serious consequences of cross-infection of the virus have been caused. Now, safe infusion needles have been widely used in the medical field, and medical regulations in many countries are more explicit. A safe infusion needle must be used. In recent years, many kinds of disposable safe infusion needles with automatic destruction devices have been developed, which guarantees the functions of one-time use only from the technical level, but the structure is complicated, the molding is difficult or difficult to form, the defective rate is high, and the cost is higher. high.
发明内容Summary of the invention
本发明目的是：提供一种能实现自毁、避免二次使用、结构简单、制造容易且成本低、锁止效果好的自毁式安全医用针。The object of the present invention is to provide a self-destructing safety medical needle capable of achieving self-destruction, avoiding secondary use, simple structure, easy manufacture, low cost and good locking effect.
本发明的技术方案是：The technical solution of the present invention is:
自毁式安全医用针，其包括：具有内腔的保护罩、可在内腔中往复运动并具有针管的针座、以及与针座相互扣合的导管座，其中保护罩上设置有阻挡爪体和止位台阶，所述止位台阶位于保护罩的内腔壁上，而针座上相应设置有与阻挡爪体抵靠配合的限位凹槽、 以及与止位台阶互锁配合的止位端面，其中止位台阶与止位端面相配合用于阻止针座继续运动，阻挡爪体与限位凹槽相配合用于阻止针座反向运动。即当针座的后段通过的时候不受阻碍，待针座的前段通过时，针座前段的止位端面会卡在这个台阶上而形成锁扣结构。The self-destructing safety medical needle comprises: a protective cover having an inner cavity, a needle seat reciprocable in the inner cavity and having a needle tube, and a catheter seat interlocking with the needle seat, wherein the protective cover is provided with a blocking claw And a stop step, the stop step is located on the inner cavity wall of the protective cover, and the needle seat is correspondingly provided with a limiting groove for abutting against the blocking claw body, And a stop end face interlocking with the stop step, wherein the stop step cooperates with the stop end face for preventing the needle seat from continuing to move, and the blocking claw body cooperates with the limit groove for preventing the reverse movement of the needle seat. That is, when the rear section of the needle seat passes, the front end of the needle seat passes, and the stop end surface of the front section of the needle seat is caught on the step to form a lock structure.
作为优选，所述保护罩为一端开口而另一端半开放的中空圆筒，其中开口允许针管的出入，止位台阶位于开口和阻挡爪体之间，所述止位端面位于针管和限位凹槽之间，锁扣时，止位端面与止位台阶平面抵靠接触，阻挡爪体与限位凹槽平面抵靠接触。Preferably, the protective cover is a hollow cylinder which is open at one end and half open at the other end, wherein the opening allows the entry and exit of the needle tube, the stop step is located between the opening and the blocking claw body, and the stop end surface is located at the needle tube and the limiting concave Between the slots, when the latch is engaged, the stop end faces abut against the stop step plane, and the blocking claw body abuts against the plane of the limit recess.
作为优选，所述阻挡爪体为在靠近保护罩接近导管座的一端上沿轴线方向对称开空隙而形成，阻挡爪体为头部呈三角型的爪体。Preferably, the blocking claw body is formed by symmetrical opening in an axial direction on an end near the protective cover close to the catheter seat, and the blocking claw body is a claw body having a triangular shape on the head.
更优的，所述止位台阶位于阻挡爪体根部90度旋转位置处。更优地，所述阻挡爪体和止位台阶均为两个，呈对称设置。More preferably, the stop step is located at a 90 degree rotational position of the root of the blocking claw. More preferably, both the blocking claw body and the stopping step are symmetrically disposed.
作为优选，所述限位凹槽设置在针座前端，所述止位端面为限位凹槽的凹槽底部向前向上延伸后与针座外表面形成的在限位凹槽前端的后端面台面。Preferably, the limiting groove is disposed at a front end of the needle seat, and the stopping end surface is a rear end surface of the limiting groove at the front end of the limiting groove formed by the bottom of the groove of the limiting groove extending forward and upward mesa.
作为优选，所述保护罩前端的位置上内沿轴线方向设置有若干个条形凸起，所述条形凸起的长度不小于针管的长度，所述针座前端的外表面上配合地设有与条形凸起相同数量的可视凹槽形成观察窗。Preferably, a plurality of strip-shaped protrusions are disposed in the axial direction of the front end of the protective cover, the length of the strip-shaped protrusions is not less than the length of the needle tube, and the outer surface of the front end of the needle holder is cooperatively disposed There are as many visible grooves as the strip-shaped projections to form the viewing window.
作为优选，所述条形凸起的数量为2个，呈上下对称设置。Preferably, the number of the strip-shaped projections is two, and is arranged symmetrically up and down.
作为优选，所述针座上还设有安全线，所述安全线设置在针座 的前端被保护罩的止位爪体完全锁住时保护罩靠近导管座一端与针座对应的边缘线上，用于从外观上确认针座已经被完全锁住。Preferably, the needle seat is further provided with a safety wire, and the safety wire is disposed on the needle seat When the front end is completely locked by the stop claw of the protective cover, the protective cover is close to the edge line corresponding to one end of the catheter seat and the needle seat, for confirming that the needle seat has been completely locked.
作为优选，所述保护罩的表面上还设有一定位结构用于定位蝴蝶翼，所述蝴蝶翼上也配合设有卡合部，用于防止蝴蝶翼左右转动和向后滑动。Preferably, a surface of the protective cover is further provided with a positioning structure for positioning the butterfly wing, and the butterfly wing is also provided with an engaging portion for preventing the butterfly wing from rotating left and right and sliding backward.
作为优选，所述保护罩靠近导管座一端为依次连接的带通孔的圆柱形和圆锥体，所述阻挡爪体由在圆锥体部分开间隙而制得。Preferably, the protective cover is adjacent to the end of the catheter socket and is a cylindrical and conical body with a through hole sequentially connected, and the blocking claw body is made by opening a gap in the cone portion.
作为优选，所述导管座与锁扣窗相扣合，且该导管座包括一对与相应锁扣窗扣合且可弹性变形的扣合臂、以及与导管相连通的通孔。且扣合臂的末端设有向外延伸的凸部，并在受压变形时锁扣至锁扣窗内壁上，其中扣合臂与导管座之间有允许弹性变形的间隙。Preferably, the catheter hub is engaged with the locking window, and the catheter socket comprises a pair of fastening arms that are elastically deformed and engaged with the corresponding locking window, and a through hole communicating with the catheter. And the end of the fastening arm is provided with an outwardly extending convex portion and is locked to the inner wall of the locking window when the pressure is deformed, wherein a gap is allowed between the fastening arm and the catheter seat to allow elastic deformation.
作为优选，所述导管的另一端还通过连接座连接有带穿刺针的穿刺针针座，所述穿刺针上还设有IR胶冒。Preferably, the other end of the catheter is further connected with a puncture needle hub with a puncture needle through a connecting seat, and the puncture needle is further provided with an IR gel.
作为优选，所述针座前端上设有针管固定件，所述针管固定件固定在止位端面前方。Preferably, a needle tube fixing member is disposed on the front end of the needle holder, and the needle tube fixing member is fixed in front of the stop end surface.
工作原理：working principle:
随着导管座撤出，带动针座在保护罩内滑动，保护罩的两个爪体前端轻触式的在针座的管体上滑动，撤出过程中，手感阻力会渐变式变大。As the catheter seat is withdrawn, the needle holder is slid in the protective cover, and the front ends of the two claws of the protective cover are lightly touched on the tube body of the needle seat, and the resistance of the hand feels gradually becomes larger during the withdrawal process.
保护罩内的两个条状凸起在针座前端两个凹槽内滑动，防止采血针因在静脉血管内旋转而切割损伤到静脉血管内壁。The two strip-shaped protrusions in the protective cover slide in the two grooves at the front end of the needle seat to prevent the blood collecting needle from being cut and damaged to the inner wall of the venous blood vessel by rotation in the venous blood vessel.
爪体前部呈三角型，针座小范围内滑动，待阻挡爪体完全落在 针座前端的限位凹槽内，爪体前部三角型的抵触到针座凹槽内的端面上，即实现了阻止针座被向前推出的目的。The front part of the claw body is triangular, and the needle seat slides in a small range, and the claw to be blocked completely falls on In the limiting groove at the front end of the needle seat, the triangular shape of the front portion of the claw body abuts against the end surface in the groove of the needle seat, thereby preventing the needle holder from being pushed forward.
针座小范围内滑动，两个止位台阶位于保护罩上阻挡爪体根部90度旋转位置处，待其与止位端面即针座前端后端台面相抵触时，即实现了阻止针座被全部拉出保护罩的目的。The needle seat slides in a small range, and the two stop steps are located on the protective cover to block the 90-degree rotation position of the root of the claw body. When it is in contact with the stop end surface, that is, the front end rear end surface of the needle seat, the needle seat is prevented from being blocked. Pull out the protective cover all the way.
直至安全线完全露出和/或听的咔嗒清脆的声音，表示针座的前端被保护罩的爪体完全锁住。The clear sound until the safety line is completely exposed and/or heard indicates that the front end of the needle holder is completely locked by the claw of the protective cover.
与现有技术相比，本发明的有益效果是：Compared with the prior art, the beneficial effects of the present invention are:
本发明结构精巧，实现自毁的防拉出和防推出的强度大、牢固，能最大限度地防止二次使用，避免患者间造成交叉感染，也避免输液针二次使用及在使用后或销毁过程中刺伤工作人员，而且锁合结构布局巧妙，保护罩和针座的结构均较简洁，都能一体成型，极易于生产，能大大降低生产难度，节约成本和缩短工期，次品率低，再配合各细节的设计，在抽针的过程中可防止针管转动划伤血管内壁，还具有锁扣安全线提示确保锁扣到位，蝴蝶翼也被固定防止转动针管，故本发明合理实用，值得推广。The invention has the advantages of compact structure, self-destruction, anti-pull and anti-launch strength, strong and strong, can prevent secondary use to the maximum extent, avoid cross infection between patients, and avoid secondary use of the infusion needle and after use or destruction In the process, the staff is stabbed, and the structure of the lock structure is clever. The structure of the protective cover and the needle seat are simple and can be integrally formed. It is easy to produce, which can greatly reduce the production difficulty, save costs and shorten the construction period. Low, and with the design of each detail, the needle can be prevented from rotating and scratching the inner wall of the blood vessel during the process of needle withdrawal, and the safety line of the lock is secured to ensure that the lock is in place, and the butterfly wing is also fixed to prevent the needle from being rotated, so the invention is reasonable and practical. It is worth promoting.
附图说明DRAWINGS
下面结合附图及实施例对本发明作进一步描述：The present invention is further described below in conjunction with the accompanying drawings and embodiments:
图1为本发明整体结构的分解立体示意图；Figure 1 is an exploded perspective view showing the overall structure of the present invention;
图2为针座、保护罩和导管座的连接结构示意图；2 is a schematic view showing the connection structure of the needle seat, the protective cover and the catheter seat;
图3为针座、保护罩和导管座的连接结构剖视图；Figure 3 is a cross-sectional view showing the connection structure of the hub, the protective cover and the catheter hub;
图4为针座和保护罩相互锁合时限位凹槽和阻挡爪体相配合的 结构示意图；Figure 4 shows the matching groove and the blocking claw body when the needle seat and the protective cover are interlocked with each other. Schematic;
图5为针座和保护罩相互锁合时止位端面和止位台阶相配合的结构示意图；FIG. 5 is a structural schematic view showing a matching of a stop end surface and a stop step when the needle holder and the protective cover are interlocked;
图6为针座和保护罩相互锁合时的结构示意图；Figure 6 is a schematic structural view of the needle holder and the protective cover when they are interlocked;
图7为针座的结构示意图。Fig. 7 is a schematic structural view of a needle hub.
具体实施方式Detailed ways
实施例：如图1-7所示，本发明提供了一种自毁式安全医用针的具体实施例，一种自毁式安全医用针，其包括：具有内腔12的保护罩10、可在内腔12中往复运动并具有针管22的针座20、以及与针座20相互扣合的导管座28，其中保护罩10上设置有阻挡爪体120和止位台阶122，所述止位台阶122位于保护罩10的内腔12壁上，而针座20上相应设置有与阻挡爪体120抵靠配合的限位凹槽24、以及与止位台阶122互锁配合的止位端面26，其中止位台阶122与止位端面26相配合用于阻止针座20继续运动，阻挡爪体120与限位凹槽相配合用于阻止针座20反向运动。即当针座的后段通过的时候不受阻碍，待针座的前段通过时，针座前段的止位端面会卡在这个台阶上而形成锁扣结构。Embodiments: As shown in FIG. 1-7, the present invention provides a self-destructing safety medical needle, a self-destructing safety medical needle, comprising: a protective cover 10 having a lumen 12, a needle holder 20 that reciprocates in the inner chamber 12 and has a needle tube 22, and a catheter holder 28 that is engaged with the needle holder 20, wherein the protective cover 10 is provided with a blocking claw body 120 and a stop step 122, the stop position The step 122 is located on the wall of the inner cavity 12 of the protective cover 10, and the needle seat 20 is correspondingly provided with a limiting groove 24 that abuts against the blocking claw body 120, and a stop end surface 26 that interlocks with the stopping step 122. The stop step 122 cooperates with the stop end face 26 for preventing the needle seat 20 from continuing to move, and the blocking claw body 120 cooperates with the limit groove for preventing the needle seat 20 from moving in the reverse direction. That is, when the rear section of the needle seat passes, the front end of the needle seat passes, and the stop end surface of the front section of the needle seat is caught on the step to form a lock structure.
所述保护罩10为一端开口而另一端半开放的中空圆筒，其中开口允许针管22的出入，止位台阶122位于开口和阻挡爪体120之间，所述止位端面26位于针管22和限位凹槽24之间，锁扣时，止位端面26与止位台阶122平面抵靠接触，阻挡爪体120与限位凹槽24平面抵靠接触。 The protective cover 10 is a hollow cylinder which is open at one end and half open at the other end, wherein the opening allows the entry and exit of the needle tube 22, and the stop step 122 is located between the opening and the blocking claw body 120, the stop end surface 26 is located at the needle tube 22 and Between the limiting recesses 24, when the latching is engaged, the stopping end surface 26 is in abutting contact with the plane of the stopping step 122, and the blocking claw body 120 is in abutting contact with the plane of the limiting recess 24.
所述阻挡爪体120为在靠近保护罩10接近导管座28的一端上沿轴线方向对称开空隙而形成，阻挡爪体120为头部呈三角型的爪体。The blocking claw body 120 is formed by opening a gap symmetrically in the axial direction near the end of the protective cover 10 close to the catheter seat 28. The blocking claw body 120 has a triangular-shaped claw body.
所述止位台阶122位于阻挡爪体120根部90度旋转位置处。更优地，所述阻挡爪体和止位台阶均为两个，呈对称设置。The stop step 122 is located at a 90 degree rotational position of the root of the blocking claw body 120. More preferably, both the blocking claw body and the stopping step are symmetrically disposed.
所述限位凹槽24设置在针座20前端，所述止位端面26为限位凹槽(24)的凹槽底部向前向上延伸后与针座外表面形成的在限位凹槽24前端的后端面台面。The limiting groove 24 is disposed at the front end of the needle holder 20, and the stopping end surface 26 is a limiting groove 24 formed by the bottom of the groove of the limiting groove (24) extending forward and upward and forming an outer surface of the needle seat. The rear end face of the front end.
所述保护罩10前端的位置上内沿轴线方向设置有若干个条形凸起19，所述条形凸起19的长度不小于针管22的长度，所述针座20前端的外表面上配合地设有与条形凸起19相同数量的可视凹槽29形成观察窗。A plurality of strip-shaped protrusions 19 are disposed in the axial direction of the front end of the protective cover 10. The length of the strip-shaped protrusions 19 is not less than the length of the needle tube 22, and the outer surface of the front end of the needle holder 20 is matched. The same number of visible grooves 29 as the strip-shaped projections 19 are provided to form an observation window.
所述条形凸起19的数量为2个，呈上下对称设置。The number of the strip-shaped protrusions 19 is two, and is arranged symmetrically up and down.
所述针座20上还设有安全线23，所述安全线23设置在针座20的前端被保护罩10的止位爪体120完全锁住时保护罩20靠近导管座28一端与针座20对应的边缘线上，用于从外观上确认针座20已经被完全锁住。The needle holder 20 is further provided with a safety thread 23 which is disposed at the end of the needle holder 20 when the stopper body 120 of the protective cover 10 is completely locked. The protective cover 20 is adjacent to the end of the catheter holder 28 and the needle holder. The corresponding edge line of 20 is used to confirm that the needle holder 20 has been completely locked.
所述保护罩41的表面上还设有一定位结构11用于定位蝴蝶翼16，所述蝴蝶翼16上也配合设有卡合部162，用于防止蝴蝶翼16左右转动和向后滑动。A positioning structure 11 is further disposed on the surface of the protective cover 41 for positioning the butterfly wing 16. The butterfly wing 16 is also provided with an engaging portion 162 for preventing the butterfly wing 16 from rotating left and right and sliding backward.
所述保护罩10靠近导管座28一端为依次连接的带通孔的圆柱形和圆锥体，所述阻挡爪体120由在圆锥体部分开间隙而制得。 One end of the protective cover 10 near the catheter hub 28 is a cylindrical and conical body with a through hole sequentially connected, and the blocking claw body 120 is made by opening a gap in the cone portion.
锁扣窗14与导管座28相扣合，且该导管座28包括一对与相应锁扣窗14扣合且可弹性变形的扣合臂280、以及与导管30相连通的通孔282。止位端面26位于针管22和限位凹槽24之间，同时能防止针座20被向后拉出而脱离保护罩10。扣合臂280的末端设有向外延伸的凸部，且在受压变形时锁扣至锁扣窗14内壁上。扣合臂280与导管座28之间有允许弹性变形的间隙。The locking window 14 is engaged with the catheter hub 28, and the catheter hub 28 includes a pair of fastening arms 280 that are engaged with the corresponding locking window 14 and elastically deformable, and a through hole 282 that communicates with the catheter 30. The stop end face 26 is located between the needle tube 22 and the limit groove 24, and at the same time prevents the needle hub 20 from being pulled back out of the protective cover 10. The end of the fastening arm 280 is provided with an outwardly extending convex portion and is locked to the inner wall of the locking window 14 when deformed under pressure. There is a gap between the fastening arm 280 and the catheter hub 28 that allows elastic deformation.
所述导管30的另一端还通过连接座42连接有带穿刺针的穿刺针针座40，所述穿刺针44上还设有IR胶冒46。The other end of the catheter 30 is further connected with a puncture needle hub 40 with a puncture needle through a connecting seat 42, and the puncture needle 44 is further provided with an IR gel 46.
所述针座20前端上设有针管固定件27，所述针管固定件27固定在止位端面26前方。A needle tube fixing member 27 is provided on the front end of the needle holder 20, and the needle tube fixing member 27 is fixed in front of the stop end surface 26.
所述止位端面26位于针管22底部与限位凹槽24之间。其中止位台阶122阻止针座20继续运动，而阻挡爪体120则阻止针座20反向运动。止位端面26与止位台阶122平面抵靠接触，而阻挡爪体120与限位凹槽24之间是平面抵靠接触。The stop end face 26 is located between the bottom of the needle tube 22 and the limit groove 24. The stop step 122 prevents the needle holder 20 from continuing to move, and the blocking of the claw body 120 prevents the needle holder 20 from moving in the reverse direction. The stop end face 26 is in planar contact with the stop step 122, and the blocking pawl 120 is in a planar abutting contact with the stop recess 24.
工作原理：随着导管座撤出，带动针座在保护罩内滑动，保护罩的两个爪体前端轻触式的在针座的管体上滑动，撤出过程中，手感阻力会渐变式变大。Working principle: As the catheter seat is withdrawn, the needle holder is slid in the protective cover, and the front ends of the two claws of the protective cover are lightly touched on the tube body of the needle seat, and the resistance is gradually changed during the withdrawal process. Become bigger.
保护罩内的两个条状凸起在针座前端两个凹槽内滑动，防止采血针因在静脉血管内旋转而切割损伤到静脉血管内壁。The two strip-shaped protrusions in the protective cover slide in the two grooves at the front end of the needle seat to prevent the blood collecting needle from being cut and damaged to the inner wall of the venous blood vessel by rotation in the venous blood vessel.
爪体前部呈三角型，针座小范围内滑动，待阻挡爪体完全落在针座前端的限位凹槽内，爪体前部三角型的抵触到针座凹槽内的端面上，即实现了阻止针座被向前推出的目的。 The front part of the claw body is triangular, and the needle seat slides in a small range. The claw body to be blocked completely falls in the limiting groove at the front end of the needle seat, and the triangular shape of the front part of the claw body abuts against the end surface in the groove of the needle seat. That is, the purpose of preventing the needle holder from being pushed forward is achieved.
针座小范围内滑动，两个止位台阶位于保护罩上阻挡爪体根部90度旋转位置处，待其与止位端面即针座前端后端台面相抵触时，即实现了阻止针座被全部拉出保护罩的目的。The needle seat slides in a small range, and the two stop steps are located on the protective cover to block the 90-degree rotation position of the root of the claw body. When it is in contact with the stop end surface, that is, the front end rear end surface of the needle seat, the needle seat is prevented from being blocked. Pull out the protective cover all the way.
直至安全线完全露出和/或听的咔嗒清脆的声音，表示针座的前端被保护罩的爪体完全锁住。The clear sound until the safety line is completely exposed and/or heard indicates that the front end of the needle holder is completely locked by the claw of the protective cover.
本发明结构精巧，实现自毁的防拉出和防推出的强度大、牢固，能最大限度地防止二次使用，避免患者间造成交叉感染，也避免输液针二次使用及在使用后或销毁过程中刺伤工作人员，而且锁合结构布局巧妙，保护罩和针座的结构均较简洁，都能一体成型，极易于生产，能大大降低生产难度，节约成本和缩短工期，次品率低，再配合各细节的设计，在抽针的过程中可防止针管转动划伤血管内壁，还具有锁扣安全线提示确保锁扣到位，蝴蝶翼也被固定防止转动针管，故本发明合理实用，值得推广。The invention has the advantages of compact structure, self-destruction, anti-pull and anti-launch strength, strong and strong, can prevent secondary use to the maximum extent, avoid cross infection between patients, and avoid secondary use of the infusion needle and after use or destruction In the process, the staff is stabbed, and the structure of the lock structure is clever. The structure of the protective cover and the needle seat are simple and can be integrally formed. It is easy to produce, which can greatly reduce the production difficulty, save costs and shorten the construction period. Low, and with the design of each detail, the needle can be prevented from rotating and scratching the inner wall of the blood vessel during the process of needle withdrawal, and the safety line of the lock is secured to ensure that the lock is in place, and the butterfly wing is also fixed to prevent the needle from being rotated, so the invention is reasonable and practical. It is worth promoting.
当然上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明主要技术方案的精神实质所做的等效变换或修饰，都应涵盖在本发明的保护范围之内。 The embodiments described above are only intended to illustrate the technical concept and the features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the present invention and to implement the present invention. Equivalent transformations or modifications made in accordance with the spirit of the main technical solutions of the present invention are intended to be included within the scope of the present invention.

Claims (10)

  1. 自毁式安全医用针，其特征在于，其包括：具有内腔(12)的保护罩(10)、可在内腔(12)中往复运动并具有针管(22)的针座(20)、以及与针座(20)相互扣合的导管座(28)，其中保护罩(10)上设置有阻挡爪体(120)和止位台阶(122)，所述止位台阶(122)位于保护罩(10)的内腔(12)壁上，而针座(20)上相应设置有与阻挡爪体(120)抵靠配合的限位凹槽(24)、以及与止位台阶(122)互锁配合的止位端面(26)，其中止位台阶(122)与止位端面(26)相配合用于阻止针座(20)继续运动，阻挡爪体(120)与限位凹槽相配合用于阻止针座(20)反向运动。A self-destructing safety medical needle characterized by comprising: a protective cover (10) having a lumen (12), a needle holder (20) reciprocable in the inner chamber (12) and having a needle tube (22), And a catheter seat (28) that is interlocked with the needle hub (20), wherein the protective cover (10) is provided with a blocking claw body (120) and a stop step (122), and the stopping step (122) is protected a wall (12) of the cover (10), and the needle seat (20) is correspondingly provided with a limiting groove (24) that abuts against the blocking claw body (120), and a stop step (122) An interlocking stop end face (26), wherein the stop step (122) cooperates with the stop end face (26) for preventing the needle seat (20) from continuing to move, and the blocking claw body (120) and the limit groove phase The fit is used to prevent the needle holder (20) from moving in the opposite direction.
  2. 根据权利要求1所述的自毁式安全医用针，其特征在于，所述保护罩(10)为一端开口而另一端半开放的中空圆筒，其中开口允许针管(22)的出入，止位台阶(122)位于开口和阻挡爪体(120)之间，所述止位端面(26)位于针管(22)和限位凹槽(24)之间，锁扣时，止位端面(26)与止位台阶(122)平面抵靠接触，阻挡爪体(120)与限位凹槽(24)平面抵靠接触。The self-destructing safety medical needle according to claim 1, wherein the protective cover (10) is a hollow cylinder whose one end is open and the other end is half open, wherein the opening allows the needle tube (22) to enter and exit, and the stop position The step (122) is located between the opening and the blocking claw body (120), the stop end surface (26) is located between the needle tube (22) and the limiting groove (24), and the locking end surface (26) Abutting against the plane of the stop step (122), the blocking claw body (120) is in abutting contact with the plane of the limiting groove (24).
  3. 根据权利要求1所述的自毁式安全医用针，其特征在于，所述阻挡爪体(120)为在靠近保护罩(10)接近导管座(28)的一端上沿轴线方向对称开空隙而形成，阻挡爪体(120)为头部呈三角型的爪体。The self-destructing safety medical needle according to claim 1, wherein the blocking claw body (120) is symmetrically opened in the axial direction on an end close to the protective cover (10) close to the catheter seat (28). Formed, the blocking claw body (120) is a claw body having a triangular shape on the head.
  4. 根据权利要求3所述的自毁式安全医用针，其特征在于，所述止位台阶(122)位于阻挡爪体(120)根部90度旋转位置处。The self-destructing safety medical needle according to claim 3, wherein the stop step (122) is located at a 90-degree rotational position of the root of the blocking claw body (120).
  5. 根据权利要求1所述的自毁式安全医用针，其特征在于，所 述限位凹槽(24)设置在针座(20)前端，所述止位端面(26)为限位凹槽(24)的凹槽底部向前向上延伸后与针座外表面形成的在限位凹槽(24)前端的后端面台面。A self-destructing safety medical needle according to claim 1, wherein The limiting groove (24) is disposed at the front end of the needle seat (20), and the stopping end surface (26) is formed by the groove bottom of the limiting groove (24) extending forward and upward and forming with the outer surface of the needle seat. The rear end face of the front end of the limiting groove (24).
  6. 根据权利要求1所述的自毁式安全医用针，其特征在于，所述保护罩(10)前端的位置上内沿轴线方向设置有若干个条形凸起(19)，所述条形凸起(19)的长度不小于针管(22)的长度，所述针座(20)前端的外表面上配合地设有与条形凸起(19)相同数量的可视凹槽(29)形成观察窗。The self-destructing safety medical needle according to claim 1, wherein a position of the front end of the protective cover (10) is provided with a plurality of strip-shaped protrusions (19) in the axial direction, the strip-shaped convex The length of the (19) is not less than the length of the needle tube (22), and the outer surface of the front end of the needle seat (20) is cooperatively provided with the same number of visible grooves (29) as the strip protrusions (19). Observation window.
  7. 根据权利要求6所述的自毁式安全医用针，其特征在于，所述条形凸起(19)的数量为2个，呈上下对称设置。The self-destructing safety medical needle according to claim 6, characterized in that the number of the strip-shaped projections (19) is two, which are arranged symmetrically up and down.
  8. 根据权利要求1所述的自毁式安全医用针，其特征在于，所述针座(20)上还设有安全线(23)，所述安全线(23)设置在针座(20)的前端被保护罩(10)的止位爪体(120)完全锁住时保护罩(20)靠近导管座(28)一端与针座(20)对应的边缘线上，用于从外观上确认针座(20)已经被完全锁住。The self-destructing safety medical needle according to claim 1, wherein the needle seat (20) is further provided with a safety wire (23), and the safety wire (23) is disposed on the needle seat (20). When the front end is completely locked by the stop claw body (120) of the protective cover (10), the protective cover (20) is close to the edge line corresponding to the needle seat (20) at one end of the catheter seat (28) for confirming the needle from the appearance. Block (20) has been completely locked.
  9. 根据权利要求1所述的自毁式安全医用针，其特征在于，所述保护罩(41)的表面上还设有一定位结构(11)用于定位蝴蝶翼(16)，所述蝴蝶翼(16)上也配合设有卡合部(162)，用于防止蝴蝶翼(16)左右转动和向后滑动。The self-destructing safety medical needle according to claim 1, wherein a surface of the protective cover (41) is further provided with a positioning structure (11) for positioning a butterfly wing (16), the butterfly wing ( 16) The upper portion is also provided with a engaging portion (162) for preventing the butterfly wing (16) from rotating left and right and sliding backward.
  10. 根据权利要求2所述的自毁式安全医用针，其特征在于，所述保护罩(10)靠近导管座(28)一端为依次连接的带通孔的圆柱形和圆锥体，所述阻挡爪体(120)由在圆锥体部分开间隙而制 得。 The self-destructing safety medical needle according to claim 2, wherein one end of the protective cover (10) adjacent to the catheter seat (28) is a cylindrical and conical body with a through hole sequentially connected, the blocking claw The body (120) is made by opening a gap in the cone portion Got it.
PCT/CN2017/095924 2017-08-03 2017-08-04 Self-destructive safe medical needle WO2019024065A1 (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5928199A (en) * 1996-09-20 1999-07-27 Nissho Corporation Winged needle assembly
US20040236287A1 (en) * 2003-05-23 2004-11-25 Becton Dickinson & Company Forward shielding medical needle device
US20070016148A1 (en) * 2005-05-19 2007-01-18 Yoshiharu Iwase Winged needle assembly
US20080082054A1 (en) * 2006-09-21 2008-04-03 Nipro Corporation Indwelling needle
JP2010187984A (en) * 2009-02-19 2010-09-02 Jms Co Ltd Medical needle device
WO2012074489A1 (en) * 2010-12-03 2012-06-07 Jms Singapore Pte Ltd A needle shield and a winged needle assembly
CN105561433A (en) * 2014-10-15 2016-05-11 江苏采纳医疗科技有限公司 Auto-disposal safe medical needle
US20170203050A1 (en) * 2014-07-18 2017-07-20 Greiner Bio-One Gmbh Safety needle arrangement for drawing fluid from a body

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5928199A (en) * 1996-09-20 1999-07-27 Nissho Corporation Winged needle assembly
US20040236287A1 (en) * 2003-05-23 2004-11-25 Becton Dickinson & Company Forward shielding medical needle device
US20070016148A1 (en) * 2005-05-19 2007-01-18 Yoshiharu Iwase Winged needle assembly
US20080082054A1 (en) * 2006-09-21 2008-04-03 Nipro Corporation Indwelling needle
JP2010187984A (en) * 2009-02-19 2010-09-02 Jms Co Ltd Medical needle device
WO2012074489A1 (en) * 2010-12-03 2012-06-07 Jms Singapore Pte Ltd A needle shield and a winged needle assembly
US20170203050A1 (en) * 2014-07-18 2017-07-20 Greiner Bio-One Gmbh Safety needle arrangement for drawing fluid from a body
CN105561433A (en) * 2014-10-15 2016-05-11 江苏采纳医疗科技有限公司 Auto-disposal safe medical needle

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