JPH05503437A - 引込み式の針装着部を有する注射器 - Google Patents
引込み式の針装着部を有する注射器Info
- Publication number
- JPH05503437A JPH05503437A JP51507090A JP51507090A JPH05503437A JP H05503437 A JPH05503437 A JP H05503437A JP 51507090 A JP51507090 A JP 51507090A JP 51507090 A JP51507090 A JP 51507090A JP H05503437 A JPH05503437 A JP H05503437A
- Authority
- JP
- Japan
- Prior art keywords
- barrel
- needle
- plunger
- syringe
- lock
- 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.)
- Granted
Links
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- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston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
- 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
- A61M2005/3223—Means impeding or disabling repositioning of used needles at the syringe nozzle
-
- 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
- A61M2005/3223—Means impeding or disabling repositioning of used needles at the syringe nozzle
- A61M2005/3224—Means to disalign the needle tip and syringe nozzle
-
- 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
- A61M2005/3231—Proximal end of needle captured or embedded inside piston head, e.g. by friction or hooks
-
- 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
- A61M5/178—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
-
- 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
- A61M5/5013—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
Abstract
Description
Claims (15)
- 1.バレル、バレル内で動作可能なプランジャおよび針装着部であってバレルの 一方の端部内で針装着部を離脱自在に保持するための変形可能な固定部分を有す る針装着部を含む注射器であって、固定部分はスナッブロック係合手段の第1の エレメントを含み、この第1のエレメントはバレルの内部壁上のスナッブロック 係合手段の第2のエレメントと協働し、注射器はさらにプランジャが針装着部に 接近するとき固定部分を変形させるための手段をプランジャ上に含み、それによ って針装着部のバレルとのスナップロック係合を艇脱させ、さらに注射器はプラ ンジャ上および針装着部上に協働手段を含み、それによってプランジャはプラン ジャまたは針装着部と係合されたその一部がバレルの前記一方の端部から離れて 変位されるとき、針装着部のバレルの中への引きのために離脱された針装着部を 係合することが可能である、注射器。
- 2.プランジャ上の変形手段は固定部分と協働するように適合されてバレルの内 部表面から離れて軸方向に内方向に固定部分を変形し、それによって計装着部の バレルとのスナッブロック係合を離脱する半径方向に内方向に面する傾斜表面に よって規定される、請求項1に記載の注射器。
- 3.固定部分はプランジャ上の変形手段と協働するように適合されて針装着部の バレルとのスナッブロック係合を離脱する半径方向に外方向に面する傾斜端部面 を含む、請求項1に記載の注射器。
- 4.固定部分は前記一方の端部からバレルに突出する複数個の弾性の角をなして 間隔を設けられたアームによって規定され、各アームはその半径方向に外方向の 表面上にそれぞれの第1のスナッブロックエレメントを有する、請求項1に記載 の注射器。
- 5.第1および第2のスナッブロックエレメントは各々バレルの軸に垂直に配向 されたそれぞれの協働表面を有する、請求項1に記載の注射器。
- 6.協働手段は固定部分上に配置されたキャッチ手段を含み、プランジャ上に配 置された協働キャッチ手段に係合する、請求項1に記載の注射器。
- 7.固定部分および/またはプランジャ上のキャッチ手段はバレルの軸に対して 非対称的に配列され、それによって針装着部がその引きの後バレル内で傾くこと を可能にする、請求項6に記載の注射器。
- 8.固定部分は傾斜の方向に針装着部にバイアスをかけるように適合される、請 求項7に記載の注射器。
- 9.針装着部は針を取外し可能に受入れるための台座を規定し、針装着部と係合 された針はまた針装着部とともにバレルの中に引くことが可能である、請求項1 に記載の注射器。
- 10.針装着部およびバレルの内部表面のうちの一方はそれから半径方向に延在 し、かつ針装着部および内部表面のうちの他方に配置される軸方向に延在する溝 の中に受入れられる突出部を有し、それによって針装着部がバレルの前記一方の 端部で保持されるとき針装着部とバレルとの間の相対的な回転を妨げる、請求項 1に記載の注射器。
- 11.プランジャは針装着部をバレルの前記一方の端部からのその離脱および引 きの後受入れるように軸方向に延在する空洞をその中に規定する、請求項1に記 載の注射器。
- 12.その上に協働手段を有するプランジャの部分はプランジャの残部から離脱 され、かつ針装着部とともに空洞の中に引かれるように適合される、請求項11 に記載の注射器。
- 13.プランジャの前記部分は空洞の中にばねバイアスをかけられる、請求項1 2に記載の注射器。
- 14.プランジャの前記部分はプランジャの前記残余部分にスナップ係合され、 かつバレルの前記一方の端部に向けてのプランジャの接近はプランジャの前記残 余部分の一部を横方向に変位させて前記部分のスナップ係合を離脱させる、請求 項12に記載の注射器。
- 15.プランジャのバレルの前記一方の端部に向けての接近中に、プランジャの 前記残余部分の前記部分はその半径方向に内方向に傾斜した前方表面および/ま たは前記一方の端部に配置され、かつバレルの内部壁から間隔を置かれた半径方 向に外方向に傾斜した表面によって半径方向に外方向に変位される、請求項14 に記載の注射器。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU7281 | 1989-11-08 | ||
AU728189 | 1989-11-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05503437A true JPH05503437A (ja) | 1993-06-10 |
JP3114203B2 JP3114203B2 (ja) | 2000-12-04 |
Family
ID=3697935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP02515070A Expired - Fee Related JP3114203B2 (ja) | 1989-11-08 | 1990-11-08 | 引込み式の針装着部を有する注射器 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3114203B2 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002525176A (ja) * | 1998-09-25 | 2002-08-13 | デイビッド, ウイリアム パーカー, | 皮下注射用シリンジの改良およびこれに関連する改良 |
JP2004520091A (ja) * | 2000-12-22 | 2004-07-08 | ニコデル エス.アー. | 医療用具及びその係止機構 |
WO2022038229A1 (en) | 2020-08-20 | 2022-02-24 | Roncadelle Operations Srl | Syringe with an improved needle retraction mechanism |
-
1990
- 1990-11-08 JP JP02515070A patent/JP3114203B2/ja not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002525176A (ja) * | 1998-09-25 | 2002-08-13 | デイビッド, ウイリアム パーカー, | 皮下注射用シリンジの改良およびこれに関連する改良 |
JP2004520091A (ja) * | 2000-12-22 | 2004-07-08 | ニコデル エス.アー. | 医療用具及びその係止機構 |
WO2022038229A1 (en) | 2020-08-20 | 2022-02-24 | Roncadelle Operations Srl | Syringe with an improved needle retraction mechanism |
Also Published As
Publication number | Publication date |
---|---|
JP3114203B2 (ja) | 2000-12-04 |
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