JP4308216B2 - 安全注射器 - Google Patents
安全注射器 Download PDFInfo
- Publication number
- JP4308216B2 JP4308216B2 JP2006064292A JP2006064292A JP4308216B2 JP 4308216 B2 JP4308216 B2 JP 4308216B2 JP 2006064292 A JP2006064292 A JP 2006064292A JP 2006064292 A JP2006064292 A JP 2006064292A JP 4308216 B2 JP4308216 B2 JP 4308216B2
- Authority
- JP
- Japan
- Prior art keywords
- syringe
- hole
- plunger
- pump
- cover
- 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- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
- 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
- A61M2005/3103—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
- A61M2005/3104—Caps for syringes without needle
-
- 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
- A61M2005/3239—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user triggered by dislodgement of outer part anchoring the needle portion to the inside of the syringe barrel wall, e.g. a ring-shaped portion
-
- 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
- A61M2005/3241—Needle retraction energy is accumulated inside of a hollow plunger rod
- A61M2005/3242—Needle retraction by vacuum
-
- 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
Description
(1)安全性に欠ける:注射器で使用者の身体部位に注射する場合、医療注射の過程に注射器には注射針を収納する設計がなされていない。注射後に再び、外に露わになった注射針に針カバーをかける。もしうっかり注射針で刺してしまうと、重大な危険が生じる。
(2)使用効果が優れない:注射器は注射の機能を持ち、注射器の注射針は凸出設計となっており、注射器の注射針で注射後、注射針と針カバーの被せる動作が必須である。医療看護人員は必ず手順を銘記しなければならず、操作に誤って注射針で刺し傷を負う状況が発生し、注射器により医療人員に感染する可能性を上げる。
請求項2の発明は、該第一棒部の一端を延長して座体を設け、該座体側面に凹縁を具えた切断面を設け、該駆動部位の一側に嵌合することを特徴とする請求項1記載の安全注射器としている。
(2)良好な注射効果を提供する:注射筒カバーは注射筒に被せることができ、プランジャー収納室内部に引き込んだ針座上の注射針は注射筒カバーの上蓋で閉じ込められ、回収運搬過程にて刺し傷を負わず安全効果を大幅に向上させる。
11 中空通路
12 注射筒カバー
20 プランジャー
21 収納室
22 止まり面
23 端部分
24 パッド
30 駆動部位
31 ピストン
32 ポンプ
40 針座
41 第一棒部
42 第二棒部
43 第三棒部
44 第四棒部
45 注射針
120 容量室
121 凸端
122、310、320、400 通し穴
123 第一止まり面
124 第二止まり面
125 上蓋
230 円形槽
231、412 切断面
232 凹縁
311、312、421、431 ワッシャー
321 フランジ
322 通気穴
401 保持穴
410 座体
411 凹縁
420、430 円凹槽
Claims (2)
- 注射筒、プランジャー、駆動部位、針座を含む安全注射器において、前述の注射筒の内部には中空通路を設け、該注射筒の一端に注射筒カバーを結合し、該注射筒カバーの内部には収容室を設け遠位端には凸端を設け、該凸端内部に該収容室に連通する通し穴を設け、該通し穴の側壁に第一止まり面を設け、該通し穴と該収容室の接続部分に該第一止まり面より大径の第二止まり面を設け、該プランジャーは該注射筒の中空通路に設置し、該プランジャーの内端部に、止まり面を具えた収納室を設け、該プランジャーの該内端部の外周に円形槽を設け、該プランジャーの内端部に、両端面にそれぞれ凹縁を具えた切断面を設け、該駆動部位は該注射筒の該注射筒カバー内に設け、該駆動部位はピストン及びポンプを含み、該ピストンには通し穴を設け、該ピストンの外周と該ピストンの通し穴の内周はワッシャーを介して、それぞれ該注射筒カバー、ポンプと結合し、該ポンプに中空通し穴を設け、該ポンプの一端にはフランジ、もう一端の外周に通気穴を設け、該針座は該駆動部位の該ポンプ内部に収容し、該針座の一端を延伸し大円径から漸次縮径して第一棒部、第二棒部、第三棒部及び第四棒部を設け、且つ該針座の中央に通し穴を設け、該針座の一端に保持穴を設け、該第一棒部の外周と該ポンプの該フランジを嵌合し、該第二棒部の周囲に円凹槽を設け、該第二棒部の円凹溝に嵌合したワッシャーを該ポンプの中空通し穴に保持し、該第三棒部の周囲に別の円凹槽を設け、該第三棒部の円凹溝に嵌合したワッシャーを該注射筒カバーの該凸端の該第一止まり面に係止し、該第四棒部は該注射筒カバーの該凸端の該通し穴に挿通することを特徴とする安全注射器。
- 該第一棒部の一端を延長して座体を設け、該座体側面に凹縁を具えた切断面を設け、該駆動部位の一側に嵌合することを特徴とする請求項1記載の安全注射器。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006064292A JP4308216B2 (ja) | 2006-03-09 | 2006-03-09 | 安全注射器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006064292A JP4308216B2 (ja) | 2006-03-09 | 2006-03-09 | 安全注射器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007236689A JP2007236689A (ja) | 2007-09-20 |
JP4308216B2 true JP4308216B2 (ja) | 2009-08-05 |
Family
ID=38582821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006064292A Expired - Fee Related JP4308216B2 (ja) | 2006-03-09 | 2006-03-09 | 安全注射器 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4308216B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2011122393A1 (ja) * | 2010-03-31 | 2013-07-08 | テルモ株式会社 | プレフィルドシリンジ |
CN102834134A (zh) * | 2010-03-31 | 2012-12-19 | 泰尔茂株式会社 | 预灌封注射器 |
KR102421258B1 (ko) * | 2020-04-28 | 2022-07-15 | 재단법인 아산사회복지재단 | 안전 주사기 |
-
2006
- 2006-03-09 JP JP2006064292A patent/JP4308216B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2007236689A (ja) | 2007-09-20 |
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