JP4836700B2 - 不正使用不能な引込み式注射器 - Google Patents
不正使用不能な引込み式注射器 Download PDFInfo
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- JP4836700B2 JP4836700B2 JP2006200659A JP2006200659A JP4836700B2 JP 4836700 B2 JP4836700 B2 JP 4836700B2 JP 2006200659 A JP2006200659 A JP 2006200659A JP 2006200659 A JP2006200659 A JP 2006200659A JP 4836700 B2 JP4836700 B2 JP 4836700B2
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- plunger
- needle
- needle holder
- force
- nose
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- Expired - Lifetime
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Images
Classifications
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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
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
- A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
- A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
- A61M2005/3235—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user triggered by radial deflection of the anchoring parts between needle mount and syringe barrel or needle housing, e.g. spreading of needle mount retaining hooks having slanted surfaces by engagement with correspondingly shaped surfaces on the piston at the end of an injection stroke
-
- 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
- A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
- A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston
-
- 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
- A61M5/508—Means for preventing re-use by disrupting the piston seal, e.g. by puncturing
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (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)
- Vascular Medicine (AREA)
- Environmental & Geological Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Valve Device For Special Equipments (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
- Centrifugal Separators (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Surgical Instruments (AREA)
- Saccharide Compounds (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Radiation-Therapy Devices (AREA)
Description
他の実施例においては、製造容易な最少数の部品が、引込み式注射器に使用されている。この他の実施例は、プランジャヘッド内の小さいストッパーと、ノーズが始まる遷移領域の最収縮部に、内向き、外向き連帯協働係合面を備えた小さい針ホルダーとバネとの組合わせとを有している。この実施例では、針ホルダーのヘッド回りに保持リングが存在しない。代わりに、小さいランプが遷移領域に、または、遷移領域に隣接して設けられ、プランジャのヘッドが緩やかにバレルを外側へ拡げ、ストッパーを解放し、かくて、外側本体の壁から針ホルダーのヘッドへ加わる締結力または摩擦力を減少させている。保持力が、圧縮されたバネによる引込み力以下に減少され、針ホルダーが、解除されたストッパーと共にプランジャの空洞内へと射出される。
Claims (3)
- 注射器が1体の本体と、後方から組立て挿入可能な引込み機構を有し、該引込み機構は、低いプランジャ力により引込まれ、注射中の高いブローアウト圧力に抵抗し、且つ、摩擦保持されている、流体を注射する不正使用不能な引込み式注射器において、該注射器は、
長手方向に延びる壁を有する1体の中空外側本体にして、該壁が遷移領域を介して互いに連結された細長いバレルとノーズとを有し、該ノーズの断面積がバレルの断面積に比較して小さく、そして該外側本体はノーズが始まる遷移領域の最収縮部における壁に内向き面を有する外側本体と、
前記細長いバレル内に部分的に収容されたプランジャ組立体にして、プランジャと、該プランジャが外側本体の内面と滑動密封状態で接触するヘッドと、引込み機構の部品を受容する引込み空洞とを有するプランジャ組立体と、を有し、
前記引込み機構は、細長い針ホルダとバネとの組合わせを有し、針ホルダはプランジャを引込み位置まで押し込むことにより解放され、針ホルダは、前部に針保持部を、後部にヘッドを備えた細長い本体とを有し、該ヘッドは、引込み機構がノーズ内に装着されたとき、前記内向き面に対して軸方向の滑動面に沿って滑動して針ホルダへの保持力を生じさせるように形成された外向き面を有し、
前記針ホルダとバネとが、バレルの後方からノーズに向かって装着可能であり、バネを圧縮しながら前記内向き面及び外向き面を、滑動可能に係合させることにより、解除可能に保持され、前記滑動可能な係合が、バネにより針ホルダに加わる引込み力に対抗して前記保持力を生じさせており、
前記プランジャの一部が前記遷移領域に侵入した時、該プランジャへ加わる親指力に反応して、前記滑動面に沿った摩擦保持力が前記引込み力よりも小さくなるまで前記外向き面を前記軸方向の滑動面に沿って滑動させて、注射針を前記外側本体内に引込むに充分な距離だけ前記針ホルダを前記空洞内に引込む、ことを特徴とする注射器。 - 請求の範囲第1項に記載の不正使用不能な引込み式注射器において、前記壁の内向き面と前記針ホルダの協働外向き面とが、針ホルダに摩擦保持力として保持力を協働して生じさせる摩擦面であることを特徴とする注射器。
- 請求の範囲第2項に記載の不正使用不能な引込み式注射器において、前記摩擦面が引込み方向に直線的インターフェースを画成することを特徴とする注射器。
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/438,954 | 1995-05-11 | ||
| US08/438,954 US5578011A (en) | 1995-05-11 | 1995-05-11 | Tamperproof retractable syringe |
| US08/537,242 | 1995-09-29 | ||
| US08/537,242 US5632733A (en) | 1995-05-11 | 1995-09-29 | Tamperproof retractable syringe |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53409596A Division JP3895773B2 (ja) | 1995-05-11 | 1996-04-24 | 不正使用不能な引込み式注射器 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2006314824A JP2006314824A (ja) | 2006-11-24 |
| JP2006314824A5 JP2006314824A5 (ja) | 2007-01-11 |
| JP4836700B2 true JP4836700B2 (ja) | 2011-12-14 |
Family
ID=27031863
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53409596A Expired - Lifetime JP3895773B2 (ja) | 1995-05-11 | 1996-04-24 | 不正使用不能な引込み式注射器 |
| JP2006200659A Expired - Lifetime JP4836700B2 (ja) | 1995-05-11 | 2006-07-24 | 不正使用不能な引込み式注射器 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53409596A Expired - Lifetime JP3895773B2 (ja) | 1995-05-11 | 1996-04-24 | 不正使用不能な引込み式注射器 |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US5632733A (ja) |
| EP (3) | EP1468706B1 (ja) |
| JP (2) | JP3895773B2 (ja) |
| KR (1) | KR100447691B1 (ja) |
| CN (1) | CN1119178C (ja) |
| AT (3) | ATE246011T1 (ja) |
| AU (2) | AU706359B2 (ja) |
| BR (1) | BR9608832A (ja) |
| CA (1) | CA2218478C (ja) |
| CZ (1) | CZ297330B6 (ja) |
| DE (3) | DE69629314T2 (ja) |
| DK (3) | DK1468706T3 (ja) |
| ES (3) | ES2203698T3 (ja) |
| MX (1) | MX9708658A (ja) |
| PT (3) | PT900096E (ja) |
| TW (1) | TW295549B (ja) |
| WO (1) | WO1996035463A1 (ja) |
Families Citing this family (122)
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|---|---|---|---|---|
| US5407431A (en) * | 1989-07-11 | 1995-04-18 | Med-Design Inc. | Intravenous catheter insertion device with retractable needle |
| US6090077A (en) * | 1995-05-11 | 2000-07-18 | Shaw; Thomas J. | Syringe plunger assembly and barrel |
| US7300416B2 (en) | 1995-08-22 | 2007-11-27 | Specialized Health Products International | Pre-filled retractable needle injection ampoules |
| US5921961A (en) * | 1996-09-13 | 1999-07-13 | Mcgary; R. Kern | Non-reusable retractable safety syringe |
| US5810775A (en) * | 1997-05-23 | 1998-09-22 | Shaw; Thomas J. | Cap operated retractable medical device |
| US6039713A (en) * | 1997-08-28 | 2000-03-21 | Mdc Investment Holdings, Inc. | Pre-filled retractable needle injection device |
| US6569115B1 (en) * | 1997-08-28 | 2003-05-27 | Mdc Investment Holdings, Inc. | Pre-filled retractable needle injection device |
| US5997512A (en) * | 1998-03-04 | 1999-12-07 | Shaw; Thomas J. | Retractable dental syringe |
| US6221055B1 (en) | 1998-03-04 | 2001-04-24 | Retractable Technologies, Inc. | Retractable dental syringe |
| GB2341804B (en) * | 1998-09-25 | 2003-02-12 | David William Parker | Improvements in or relating to hypodermic syringes |
| US6428517B1 (en) | 1999-05-10 | 2002-08-06 | Milestone Scientific, Inc. | Hand-piece for injection device with a retractable and rotating needle |
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| US6368303B1 (en) | 1999-10-15 | 2002-04-09 | Becton, Dickinson And Company | Retracting needle syringe |
| US6840291B2 (en) * | 1999-10-15 | 2005-01-11 | Becton Dickinson And Company | Attachment for a medical device |
| PL364172A1 (en) * | 1999-12-07 | 2004-12-13 | Mdc Investment Holdings, Inc. | Safety needle medical bearing devices |
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- 1996-04-24 PT PT96915345T patent/PT900096E/pt unknown
- 1996-04-24 CN CN96193698A patent/CN1119178C/zh not_active Expired - Lifetime
- 1996-04-24 ES ES96915345T patent/ES2203698T3/es not_active Expired - Lifetime
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- 1996-04-24 AT AT96915345T patent/ATE246011T1/de active
- 1996-04-24 KR KR1019970707995A patent/KR100447691B1/ko not_active Expired - Fee Related
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- 1996-04-24 WO PCT/US1996/005711 patent/WO1996035463A1/en not_active Ceased
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- 1996-04-24 DK DK04017229T patent/DK1468706T3/da active
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- 1996-04-24 AU AU57143/96A patent/AU706359B2/en not_active Expired
- 1996-04-24 AT AT04017229T patent/ATE413897T1/de active
- 1996-04-24 ES ES04017229T patent/ES2316900T3/es not_active Expired - Lifetime
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- 1996-04-24 DK DK03017117T patent/DK1358900T3/da active
- 1996-04-24 DE DE69634501T patent/DE69634501T2/de not_active Expired - Lifetime
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- 1996-04-24 EP EP03017117A patent/EP1358900B1/en not_active Expired - Lifetime
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