WO2021217781A1 - Seringue auto-destructive - Google Patents

Seringue auto-destructive Download PDF

Info

Publication number
WO2021217781A1
WO2021217781A1 PCT/CN2020/094343 CN2020094343W WO2021217781A1 WO 2021217781 A1 WO2021217781 A1 WO 2021217781A1 CN 2020094343 W CN2020094343 W CN 2020094343W WO 2021217781 A1 WO2021217781 A1 WO 2021217781A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
self
destructable
syringe
locking
Prior art date
Application number
PCT/CN2020/094343
Other languages
English (en)
Chinese (zh)
Inventor
余刚
刘建明
卢金云
Original Assignee
安徽宏宇五洲医疗器械股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202010340224.2A external-priority patent/CN113546249A/zh
Application filed by 安徽宏宇五洲医疗器械股份有限公司 filed Critical 安徽宏宇五洲医疗器械股份有限公司
Publication of WO2021217781A1 publication Critical patent/WO2021217781A1/fr

Links

Images

Classifications

    • 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
    • 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

Definitions

  • the invention relates to the field of medical equipment, and in particular to a self-destructable syringe.
  • a large number of syringes are designed in the prior art to solve this problem. Some require specific actions to destroy the syringe after use, or use a sabotage device or a fragile area on the syringe to make it unusable with the help of external force. These fragile areas are common on the push rod used to push the liquid. The push rod can be broken by external force. However, this will not cause any damage to the syringe barrel part. After the syringe part is refitted with a push rod, it can still be broken. Was used again.
  • the present invention intends to propose a self-destructable syringe, which can destroy the entire syringe through one action, so as to solve the problem that the self-destructable syringe in the prior art can leave the undamaged part of the syringe after one destruction, causing it to still be destroyed. Part of the technical problem of reuse.
  • the self-destructable syringe of the present invention can be used with a needle, and the syringe includes:
  • a needle cylinder the needle cylinder having a cylinder body with an accommodating hole, a thrust part formed by the cylinder body in the direction of the needle, and a needle connection part formed by the thrust toward the needle for the needle to be installed,
  • the needle connecting portion is tubular in shape and communicates with the containing hole, and also has a locking portion formed on the inner edge of the needle connecting portion;
  • a putter the putter has a shaft, and a push-pull part for finger pushing and pulling is provided at the rear end of the shaft;
  • a stopper set has a disc-shaped plug body that can be movably plugged in the accommodating hole of the syringe, and a connecting body fixedly connected between the plug body and the front end of the shaft;
  • a locking cone rod passing through the plug body extends from the end of the connecting body toward the needle connecting portion;
  • a locking edge is formed on the outer peripheral wall of the locking cone rod, and the locking edge can be elastic forward It passes through the locking portion in a deformed manner and then is locked in the locking portion when retreating.
  • the push rod has a disconnection structure formed between the shaft and the connecting body, and when the stopper set is pulled back by the push rod, the push rod disconnection structure can produce a disconnection. Leave.
  • the locking portion presents an annular protrusion formed from the inner edge of the needle connecting portion in the direction of the central axis of the needle connecting portion, and the inner edge of the annular protrusion forms a hollow concave Luer cone The large end of the Luer cone faces the inside of the barrel.
  • the outer circumference of the locking edge forms a Luer cone shape that matches with the inner edge of the annular protrusion.
  • the locking edge forms a middle part in the axial direction of the locking cone rod.
  • the thrust part is in the shape of a hollow Luer taper protruding toward the needle.
  • the plug body of the stopper set is tapered toward one end of the thrust part.
  • the plug body is a plug body made of rubber.
  • the plug body is in the shape of a hollow cap and is sleeved outside the connecting piece.
  • the breaking structure is a pull-breakable connecting post formed between the shaft and the connecting piece.
  • the number of the connecting column is one, which is formed between the center of the front end surface of the shaft and the center point of the rear end surface of the connecting member.
  • the locking cone rod When the self-destructable syringe of the present invention is used to the end of the liquid ejection, following the liquid ejection action, the locking cone rod can be pushed into the needle connection part as a whole, and the locking edge can easily pass forward through the locking part. After passing, you can no longer withdraw.
  • the user can complete the entire destruction of the syringe in one action during injection, so that the push rod can be partially reused without separating the syringe.
  • the push rod since the push rod has a disconnected structure connected between the shaft and the connecting body, it can also be actively implemented or passively implemented when someone attempts to use the syringe in this embodiment again.
  • the second damage caused the shaft to be separated from the stopper group, and the shaft itself cannot be reused.
  • the stopper group left in the syringe prevents the syringe from being used again, which solves the prior art
  • the self-destructable syringe can leave the syringe part undamaged once destroyed, causing the technical problem that it can still be partially reused, and it can be destroyed passively for the second time, which better avoids the syringe from being reused The problem.
  • Figure 1 is an exploded view of a self-destructable syringe in an embodiment of the present invention
  • FIG. 2 is a partial cross-sectional view of the self-destructable syringe in the embodiment of the present invention when it is in a state where the liquid is pushed;
  • Figure 3 is an enlarged view of A in Figure 2;
  • FIG. 4 is a cross-sectional view of the self-destructable syringe in the embodiment of the present invention after being self-destructed.
  • Reference signs include: barrel 1, thrust portion 2, needle connecting portion 3, shaft 4, push-pull portion 5, connecting body 6, plug body 7, locking cone rod 8, locking portion 9, locking edge 10 , Connecting column 11.
  • the thrust part 2 is in the shape of a hollow Luer cone that protrudes toward the needle. In other embodiments, other shapes can be used as needed.
  • the cone tip of the thrust part 2 also has a thrust part 2 A needle connecting portion 3 formed in the direction of the needle for the needle to be installed, the needle connecting portion 3 is tubular and communicates with the containing hole.
  • This embodiment also includes a putter.
  • the putter has a shaft 4, a disc-shaped push-pull portion 5 for finger pushing and pulling is formed at the rear end of the shaft 4, and a connecting body 6 is formed at the front end of the shaft 4;
  • the plug body 7 is made of rubber material, in the shape of a hollow cap, can be sleeved on the connecting body 6 and hug the connecting body 6, the outer contour size of the sleeved plug body 7 allows it to be movably plugged in
  • the plug body 7 is tapered toward the end of the thrust part 2, which can be better matched with the thrust part 2.
  • the connecting body 6 is also on the end facing the needle connection part 3.
  • the locking cone rod 8 which can extend into the needle connection part 3.
  • a through hole is opened at the cone tip of the plug body 7 for the locking cone rod 8 to pass through, and the connecting body 6 is also designed as two upper and lower one.
  • the big disc is located in the plug body 7, and the small disc is located outside the plug body 7 and has a diameter larger than the through hole on the plug body 7, thereby jamming the plug.
  • the body 7 can better support and fix the plug body 7; the locking cone rod 8 extends upward from the small disc, and a locking edge 10 is formed on the outer peripheral wall of the locking cone rod 8.
  • a locking portion 9 is formed on the inner edge of the needle connecting portion 3, which allows the locking edge 10 to be elastically deformable forwards through the locking portion 9 and then to be locked on the card when retreating.
  • the stop portion 9, then the connecting body 6 and the plug body 7 constitute the stop plug group in this embodiment.
  • the locking cone rod 8 can be pushed into the needle connecting part 3 as a whole.
  • the locking part 9 is actually made of the needle
  • the inner edge of the connecting portion 3 forms an annular protrusion in the direction of the central axis of the needle connecting portion 3.
  • the inner edge of the annular protrusion forms a hollow concave Luer taper, and the large end of the Luer taper faces toward the center of the needle connecting portion 3.
  • the outer circumference of the locking edge 10 forms a Luer cone that matches the inner edge of the annular protrusion.
  • the mutually matched cones make the locking edge 10 easier to pass forward.
  • the locking part 9 can no longer be withdrawn after passing.
  • the shaft 4 and the connecting body 6 in this embodiment are integrally formed. At the same time, as a more preferred design, a disconnected structure is formed between the shaft 4 and the connecting body 6.
  • the push rod disconnection structure can be disconnected.
  • the disconnection structure in this embodiment is specifically formed at the center of the front end face of the shaft 4
  • the connecting column 11 between the center point of the rear end surface of the connecting member and the connecting column 11 has a small diameter, which makes it easy to be shortened by external force, so the stopper set separated from the shaft 4 is left in the barrel.
  • the user can complete the entire destruction of the syringe with one action during injection, so that the push rod can be partially reused without separating the syringe.
  • the second destruction of the syringe is passively performed, so that the shaft 4 is separated from the stopper group, the shaft 4 itself cannot be reused, and the stopper group remaining in the syringe makes The syringe cannot be reused alone, which solves the technical problem that the self-destructable syringe in the prior art can leave the syringe part undamaged after being destroyed once, causing it to be partially reused, and it can be implemented passively.
  • the second damage avoids the problem of repeated use of the syringe.

Landscapes

  • 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)

Abstract

L'invention concerne une seringue auto-destructive pouvant être pourvue d'une aiguille destinée à être utilisée, comprenant : un fourreau d'aiguille qui comprend un corps de cylindre (1) ayant un trou de réception, une partie de poussée (2) formée dans la direction partant du corps de cylindre (1) vers l'aiguille, une partie de raccordement d'aiguille (3) formée dans la direction partant de la partie de poussée (2) vers l'aiguille pour permettre le montage de l'aiguille, la partie de raccordement d'aiguille (3) étant tubulaire et en communication avec le trou de réception, et une partie d'arrêt (9) formée au niveau du bord interne de la partie de raccordement d'aiguille (3) ; une tige de piston qui comprend un corps de tige (4) et une bride de piston (5) destinée à pousser et tirer par le biais des doigts et disposée à l'extrémité arrière du corps de tige (4) ; et un bouchon de piston qui comprend un joint d'étanchéité de piston (7) en forme de disque et enfiché de manière mobile dans le trou de réception du cylindre d'aiguille, et un corps de liaison (6) relié de manière fixe entre le joint d'étanchéité de piston (7) et l'extrémité avant du corps de tige (4), une tige d'arrêt conique (8) traversant le joint d'étanchéité de piston (7) s'étendant en outre à partir de l'extrémité du corps de liaison (6) faisant face à la partie de liaison d'aiguille (3), et une bride d'arrêt (10) étant formée sur la paroi périphérique externe de la tige d'arrêt conique (8). La totalité de la seringue est détruite au moyen d'une seule opération, ce qui permet d'éviter la réutilisation de la partie fourreau d'aiguille.
PCT/CN2020/094343 2020-04-26 2020-06-04 Seringue auto-destructive WO2021217781A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202010340224.2 2020-04-26
CN202020653543.4 2020-04-26
CN202020653543 2020-04-26
CN202010340224.2A CN113546249A (zh) 2020-04-26 2020-04-26 可自毁的注射器

Publications (1)

Publication Number Publication Date
WO2021217781A1 true WO2021217781A1 (fr) 2021-11-04

Family

ID=78332295

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/094343 WO2021217781A1 (fr) 2020-04-26 2020-06-04 Seringue auto-destructive

Country Status (1)

Country Link
WO (1) WO2021217781A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5540660A (en) * 1992-06-10 1996-07-30 Jenson; Robert W. Disposable hypodermic syringe with needle safe feature
US20040024357A1 (en) * 2001-09-24 2004-02-05 Pelkey Brian J. Single use syringe and plunger rod locking device therefor
WO2011075961A1 (fr) * 2009-12-23 2011-06-30 Chang Shu-Ming Structure améliorée pour injecteur autodestructeur
CN104338213A (zh) * 2013-08-09 2015-02-11 江阴采纳科技有限公司 一种注射器的止退自毁结构
CN106362246A (zh) * 2016-09-23 2017-02-01 东莞市联洲知识产权运营管理有限公司 一次性的安全注射器
CN109701125A (zh) * 2018-12-28 2019-05-03 珠海德瑞医疗器械有限公司 一种回拉自锁式注射器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5540660A (en) * 1992-06-10 1996-07-30 Jenson; Robert W. Disposable hypodermic syringe with needle safe feature
US20040024357A1 (en) * 2001-09-24 2004-02-05 Pelkey Brian J. Single use syringe and plunger rod locking device therefor
WO2011075961A1 (fr) * 2009-12-23 2011-06-30 Chang Shu-Ming Structure améliorée pour injecteur autodestructeur
CN104338213A (zh) * 2013-08-09 2015-02-11 江阴采纳科技有限公司 一种注射器的止退自毁结构
CN106362246A (zh) * 2016-09-23 2017-02-01 东莞市联洲知识产权运营管理有限公司 一次性的安全注射器
CN109701125A (zh) * 2018-12-28 2019-05-03 珠海德瑞医疗器械有限公司 一种回拉自锁式注射器

Similar Documents

Publication Publication Date Title
KR101052100B1 (ko) 자체 파괴형의 일회용 주사기 및 그의 자체 파괴 방법
US4950241A (en) Disposable syringe
US5104378A (en) Syringe having means for retracting, canting and destroying a needle cannula
JP3325558B2 (ja) 針筒を具えた安全注射器
US20080132854A1 (en) Interchangeable retractable needle syringe with safety filling cannula
JP2008229328A (ja) 投与装置または組立体の先端を被覆するためのシールド、投与組立体および投与装置
JP2001037878A (ja) 安全注射器
WO2009140801A1 (fr) Nouvelle seringue non réutilisable à verrouillage sûr
JP6074387B2 (ja) 止め輪状固定部を用いた受動再使用防止注射器
JP2015104665A (ja) 安全注射器
WO2021217781A1 (fr) Seringue auto-destructive
CN203815993U (zh) 一种推杆多节脱离的防再利用注射器
US6872191B2 (en) Self-destructive syringe
EP1797921A1 (fr) Seringue hypodermique de sécurité
TWM624770U (zh) 可用於免針加藥之安全針筒
TWI243692B (en) Hypodermic syringes
WO2021217782A1 (fr) Seringue de sécurité autobloquante
CN113546249A (zh) 可自毁的注射器
CN113546250A (zh) 可自毁的安全注射器
US20070173758A1 (en) Safety hypodermic syringe
JPH04500473A (ja) 使用を１回に限定された注射筒
US20060264826A1 (en) Self-destructive safety syringe
CN109432553B (zh) 无针注射器的储药管的注射头组件、储药管和无针注射器
CN215585091U (zh) 密封破除型自毁式注射器
TWI823172B (zh) 可用於免針加藥之安全針筒

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20933259

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20933259

Country of ref document: EP

Kind code of ref document: A1