JP5536475B2 - 安全な使い捨て式注射器 - Google Patents
安全な使い捨て式注射器 Download PDFInfo
- Publication number
- JP5536475B2 JP5536475B2 JP2010010246A JP2010010246A JP5536475B2 JP 5536475 B2 JP5536475 B2 JP 5536475B2 JP 2010010246 A JP2010010246 A JP 2010010246A JP 2010010246 A JP2010010246 A JP 2010010246A JP 5536475 B2 JP5536475 B2 JP 5536475B2
- Authority
- JP
- Japan
- Prior art keywords
- injection needle
- piston head
- needle base
- plunger rod
- cylindrical body
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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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
- 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- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- 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
- A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
- A61M2005/323—Connection between plunger distal end and needle hub proximal end, e.g. stud protruding from the plunger
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Environmental & Geological Engineering (AREA)
- Hematology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pain & Pain Management (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Rheumatology (AREA)
- Pharmacology & Pharmacy (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
以下、本発明の一実施形態による使い捨て式注射器を図面に基づいて説明する。
図1、図2に示すように、本発明の一実施形態による使い捨て式注射器は、筒体10、注射針台座20、プランジャーロッド30、ピストンヘッド31によって構成する。筒体10の先端部内には位置決め部11が設けられ、位置決め部11は係合溝12を具える。注射針台座20の前端には注射針28を取り付ける注射針取り付け部24が設けられ、その後端には内側に反り返る弾性係合部21が設けられ、その周縁には液漏れ防止リング23を取り付けるリング溝22が設けられる。又、注射針台座20の前端には凸柱26が設けられ、凸柱26の末端には、その両反対側が突出するように形成した係合部27が設けられ、注射針台座20の内部には、凸柱26と一体成型するように当接柱25が設けられる。注射針台座20を筒体10内に取り付ける際、凸柱26の係合部27を筒体10の位置決め部11の係合溝12に係合させることで、注射針台座20は筒体10に固定される。プランジャーロッド30のピストンヘッド31にはピストン補助体32が取り付けられ、プランジャーロッド30のピストンヘッド31の前端には環状の凸縁33が設けられる。
Claims (1)
- 筒体、注射針台座、プランジャーロッド、ピストンヘッドを備え、
前記筒体の先端部には径方向内側に突出する位置決め部が設けられ、前記位置決め部は先端側の幅が反先端側の幅よりも大きくなるように軸方向に形成される係合溝を具え、
前記注射針台座の前端には注射針を取り付ける注射針取り付け部が設けられ、後端には弾性係合部が設けられ、周縁には液漏れ防止リングを取り付けるリング溝が設けられ、また、前記注射針台座の前端から軸方向に突出する凸柱が設けられ、前記凸柱の末端には周方向を向く両側面から突出するように形成した係合部が設けられ、前記凸柱の前記係合部を前記筒体の前記位置決め部の前記係合溝に係合することで前記注射針台座が前記筒体内に固定され、
前記プランジャーロッドの前記ピストンヘッドにはピストン補助体が取り付けられ、前記プランジャーロッドの前記ピストンヘッドの前端には環状の凸縁が設けられ、
薬液の注射が完了した際、前記ピストンヘッドを前記注射針台座内に更に押し込むと、前記ピストンヘッドの前記環状の凸縁は、前記注射針台座の前記係合部に係合されて前記ピストンヘッドと前記注射針台座とが連結され、前記注射針台座の前記凸柱の前記係合部が前記筒体の前記位置決め部の前記係合溝から外れた後、前記プランジャーロッドの前記ピストンヘッドが引き戻される動作に連動し、前記注射針台座と前記注射針とが前記筒体内に収納されることを特徴とする使い捨て式注射器。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW098201291U TWM360049U (en) | 2009-01-22 | 2009-01-22 | Disposable safety syringe structure improvement |
TW098201291 | 2009-01-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010167279A JP2010167279A (ja) | 2010-08-05 |
JP5536475B2 true JP5536475B2 (ja) | 2014-07-02 |
Family
ID=42337517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010010246A Expired - Fee Related JP5536475B2 (ja) | 2009-01-22 | 2010-01-20 | 安全な使い捨て式注射器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20100185147A1 (ja) |
JP (1) | JP5536475B2 (ja) |
DE (1) | DE102010004889A1 (ja) |
TW (1) | TWM360049U (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ302349B6 (cs) * | 2009-08-28 | 2011-03-23 | Blokovací a záchytné ústrojí jehly pro bezpecnostní injekcní stríkacku | |
TWI527602B (zh) * | 2011-11-07 | 2016-04-01 | Fan Xiao Yi | Ordinary safety syringes |
EP2596826A1 (en) * | 2011-11-24 | 2013-05-29 | Sanofi-Aventis Deutschland GmbH | Safety syringe |
CN103372251B (zh) * | 2012-04-27 | 2015-09-02 | 张林锋 | 一种针座回拉式安全自锁式自毁注射器 |
TWI551319B (zh) | 2012-06-15 | 2016-10-01 | Fan Xiao Yi | A push rod with a card retracting structure |
US20150148755A1 (en) * | 2013-11-26 | 2015-05-28 | Yue Pfong International Technology Corp. | Syringe |
CN104043166A (zh) * | 2014-07-07 | 2014-09-17 | 江西益康医疗器械集团有限公司 | 安全注射器及其针接头固定结构 |
JP6755545B2 (ja) * | 2016-06-22 | 2020-09-16 | 株式会社湘南合成樹脂製作所 | 管更生工法 |
US11371495B2 (en) * | 2016-08-02 | 2022-06-28 | Performance Creations Llc | Air pump with retractable needle and/or method of making the same |
TWI604867B (zh) * | 2017-04-20 | 2017-11-11 | 林譽凡 | 注射器 |
CN109481787A (zh) * | 2018-12-20 | 2019-03-19 | 伦若森 | 一种低阻力注射器 |
CN112494756B (zh) * | 2020-10-28 | 2022-06-24 | 重庆医科大学附属永川医院 | 一种麻醉注射装置 |
JP7202587B1 (ja) | 2022-08-30 | 2023-01-12 | アットドウス株式会社 | 注射器及び注射器ユニット |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6599270B1 (en) * | 2002-10-29 | 2003-07-29 | Cho Ying Chen | Syringe with a snapping device for backward pulling the needle into the syringe after syringing |
US7179243B2 (en) * | 2003-05-09 | 2007-02-20 | Cho Ying Chen | Syringe with a snapping device for backward pulling the needle into the syringe after syringing |
-
2009
- 2009-01-22 TW TW098201291U patent/TWM360049U/zh not_active IP Right Cessation
-
2010
- 2010-01-18 DE DE102010004889A patent/DE102010004889A1/de not_active Ceased
- 2010-01-20 JP JP2010010246A patent/JP5536475B2/ja not_active Expired - Fee Related
- 2010-01-22 US US12/692,524 patent/US20100185147A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
TWM360049U (en) | 2009-07-01 |
US20100185147A1 (en) | 2010-07-22 |
DE102010004889A1 (de) | 2010-10-21 |
JP2010167279A (ja) | 2010-08-05 |
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