JP5919269B2 - 双数チャンバーで受動的引き込みのニードル注射器 - Google Patents
双数チャンバーで受動的引き込みのニードル注射器 Download PDFInfo
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- JP5919269B2 JP5919269B2 JP2013520859A JP2013520859A JP5919269B2 JP 5919269 B2 JP5919269 B2 JP 5919269B2 JP 2013520859 A JP2013520859 A JP 2013520859A JP 2013520859 A JP2013520859 A JP 2013520859A JP 5919269 B2 JP5919269 B2 JP 5919269B2
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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
- 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- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston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
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-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
- A61M5/3293—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 characterised by features of the needle hub
-
- 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
- A61M5/5066—Means for preventing re-use by disconnection of piston and piston-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
- A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
- A61M2005/3227—Constructional features thereof, e.g. to improve manipulation or functioning the needle being retracted laterally outside the syringe barrel, e.g. with separate guideway
-
- 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
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Environmental & Geological Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
従って、この明細書の全体に亘り種々の箇所での「1つ以上の実施形態において」、「ある実施形態においては」、「1つの実施形態において」、又は「一実施形態において」のような語句の出現は、本発明の同じ実施形態を必ずしも言及していない。さらに、特有の特徴、構造、材料、又は特性は、1つ以上の実施形態において、いずれかの適切な方法で組み合わされてもよい。
Claims (21)
- 流体を保持するための流体チャンバーを画成する内側表面を有し、そして第1の断面幅を有する側壁と、開口した基端部と、末端壁を含んでいる末端部とを含む流体バレル、
当該流体チャンバー内に配置されたプランジャーロッドであって、末端部、基端部、当該末端部から当該基端部まで延在しているプランジャーロッド本体、及び当該バレルの内側表面との液密シールを形成するためにプランジャーロッドの末端部に配置されたストッパーを備えるプランジャーロッド、
当該流体バレルの側壁に隣接して配置された格納バレルであって、ニードルチャンバーを画成する内部表面を有する壁、開口した基端部、障壁を含んで開口した末端部、当該流体チャンバーと当該ニードルチャンバーとが流体連通するための、流体バレルの壁及び流体バレルの側壁の間の開口部、及びニードルハブと、当該開口部に流体連通して当該ニードルハブに取り付けられたニードルカニューレとを備えるニードルハブアセンブリであって、基端方向に移動すべく付勢されているニードルハブアセンブリ、を含む格納バレル、及び
前記プランジャーロッドの基端部に取り付けられてプランジャーロッドと共に移動し、当該格納バレルのニードルチャンバー内に延在しているトリガー要素であって、ニードルカニューレが格納バレル内に引き込むのを起こさせるトリガー力を提供するトリガー要素、
を備えることを特徴とする注射器アセンブリ。 - 当該壁は、ニードルチャンバー内に配置されたニードルアセンブリに係合する支持要素を含み、及び当該支持要素は、第1の位置においてニードルカニューレが格納バレルの開口した末端部を末端方向に越えて延在するように、ニードルハブに末端方向の力を加えるべく位置されていることを特徴とする請求項1に記載の注射器アセンブリ。
- 当該トリガー要素は、当該ニードルカニューレが格納バレル内に収容されるように、当該支持要素とニードルハブとを係合解除させるべくニードルハブにトリガー力を提供することを特徴とする請求項2に記載の注射器アセンブリ。
- 当該ニードルハブは、ニードルハブと障壁との間に配置され、ニードルハブに基端方向に力を及ぼすスプリングによって付勢されていることを特徴とする請求項1に記載の注射器アセンブリ。
- 当該トリガー要素は、プランジャーロッドの末端部に取り付けられていることを特徴とする請求項1に記載の注射器アセンブリ。
- 当該トリガー要素は、プランジャーロッドの基端部に取り付けられた基端部と、トリガー力を提供する自由で開口した末端部と、当該基端部から当該末端部まで延在し、及び中空の内部を画成している内部表面を含むトリガー要素本体と、を含んでいることを特徴とする請求項5に記載の注射器アセンブリ。
- 注射器のバレル(胴部)の内側表面は、前記基端部に隣接して、第1の断面幅よりも狭い第2の断面幅画成する保持リングを含み、且つプランジャーロッド本体は、当該バレルのリブにおける断面幅より大きな断面幅を有する可撓性の突出部、及び壊れ易い部分を含んでいることを特徴とする請求項1に記載の注射器アセンブリ。
- 当該プランジャーロッド本体は、末端部分及び基端部分と、当該末端部分及び基端部分の間に配置された突出部とを備えることを特徴とする請求項1に記載の注射器アセンブリ。
- 当該プランジャーロッド本体の当該末端部分は、可撓性の突出部の基端側に隣接して配置された支持部材、及び当該支持部材の基端側に隣接して配置された少なくとも1つの壊れ易い部分を備えることを特徴とする請求項8に記載の注射器アセンブリ。
- 当該トリガー要素の基端部は、プランジャーロッドの親指押さえに取り付けられていることを特徴とする請求項8に記載の注射器アセンブリ。
- 当該プランジャーロッドの末端部はストッパー係合部分を含み、及び当該ストッパーはプランジャーロッドのストッパー係合部分に取り付けられており、当該ストッパーは、当該ストッパーの末端部が当該バレルの末端壁に接触するとき、当該突出部が当該バレルのリブを過ぎて末端方向に前進し、且つ当該注射器アセンブリの再使用を防止すべくプランジャーロッドを当該バレル内にロックするのを可能にするように、当該ストッパー係合部分に対して予め選定された軸方向距離だけ末端方向及び基端方向に移動可能であることを特徴とする請求項8に記載の注射器アセンブリ。
- 当該プランジャーロッドのストッパー係合部分は、当該バレルを保持しながら、基端方向に向けられた初期の力がプランジャーロッドに加えられたとき、ストッパーが静止して残ったまま、当該プランジャーロッド及びトリガー要素が当該バレル内を基端方向に軸方向の距離の長さ移動するのを生じさせるように、当該ストッパーに連結されていることを特徴とする請求項11に記載の注射器アセンブリ。
- 当該プランジャーロッドのストッパー係合部分は、当該バレルを保持しながら、基端方向に向けられた継続した力がプランジャーロッドに加えられたとき、当該ストッパー、当該プランジャーロッド及びトリガー要素が当該バレル内を基端方向に共に移動するのを生じさせるように、当該ストッパーに連結されていることを特徴とする請求項12に記載の注射器アセンブリ。
- 当該プランジャーロッドのストッパー係合部分は、当該バレルを保持しながら、基端方向に向けられた初期の力をプランジャーロッドに加えた後に、末端方向に向けられた初期の力をプランジャーロッドに加えると、ストッパーが静止して残り、当該プランジャーロッド及びトリガー要素が当該バレル内を末端方向に軸方向の距離の長さ移動するのを生じさせるように、当該ストッパーに連結されていることを特徴とする請求項13に記載の注射器アセンブリ。
- 当該プランジャーロッドのストッパー係合部分は、末端方向に向けられた継続した力がプランジャーロッドに加えられると、当該ストッパー、当該プランジャーロッド及びトリガー要素が当該バレル内を基端方向に共に、当該ストッパーが当該バレルの末端部に到達するまで移動するのを生じさせるように、当該ストッパーに連結されていることを特徴とする請求項14に記載の注射器アセンブリ。
- 当該ストッパーと当該バレルの末端壁との接触は、当該支持要素がニードルハブから係合解除すること、及び当該突出部が当該バレルのリブを過ぎて末端方向に前進すること、及び当該注射器アセンブリの再使用を防止すべく、プランジャーロッドを当該バレル内にロックすることを生じさせることを特徴とする請求項15に記載の注射器アセンブリ。
- 突出部がリブを過ぎて末端方向に前進した後にプランジャーに基端方向に向けられた力を加えると、プランジャーロッドの少なくとも1つの壊れ易い部分の破損を生じさせることを特徴とする請求項16に記載の注射器アセンブリ。
- プランジャーロッドに継続的な基端方向に向けられた力を加えると、ストッパー係合部分のストッパーからの係合解除を生じさせることを特徴とする請求項11に記載の注射器アセンブリ。
- 当該トリガー要素の開口した末端部は、末端方向に延在している傾斜された縁部を備えることを特徴とする請求項6に記載の注射器アセンブリ。
- 格納バレルは流体バレルに平行に配置されていることを特徴とする請求項1に記載の注射器アセンブリ。
- 当該格納バレルは、当該流体バレルに入れ子にされ、及び当該格納バレルは当該流体バレルの断面の寸法の90%より小さい断面の寸法を有していることを特徴とする請求項1に記載の注射器アセンブリ。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US36674910P | 2010-07-22 | 2010-07-22 | |
US61/366,749 | 2010-07-22 | ||
US13/187,045 US8721599B2 (en) | 2010-07-22 | 2011-07-20 | Dual chamber passive retraction needle syringe |
US13/187,045 | 2011-07-20 | ||
PCT/US2011/044795 WO2012012603A1 (en) | 2010-07-22 | 2011-07-21 | Dual chamber passive retraction needle syringe |
Related Child Applications (1)
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JP2016006637A Division JP6219985B2 (ja) | 2010-07-22 | 2016-01-15 | 双数チャンバーで受動的引き込みのニードル注射器 |
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JP2013532522A JP2013532522A (ja) | 2013-08-19 |
JP5919269B2 true JP5919269B2 (ja) | 2016-05-18 |
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JP2013520859A Active JP5919269B2 (ja) | 2010-07-22 | 2011-07-21 | 双数チャンバーで受動的引き込みのニードル注射器 |
JP2016006637A Active JP6219985B2 (ja) | 2010-07-22 | 2016-01-15 | 双数チャンバーで受動的引き込みのニードル注射器 |
JP2017188359A Active JP6526141B2 (ja) | 2010-07-22 | 2017-09-28 | 双数チャンバーで受動的引き込みのニードル注射器 |
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JP2017188359A Active JP6526141B2 (ja) | 2010-07-22 | 2017-09-28 | 双数チャンバーで受動的引き込みのニードル注射器 |
Country Status (9)
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US (3) | US8721599B2 (ja) |
EP (3) | EP3384945B1 (ja) |
JP (3) | JP5919269B2 (ja) |
CN (2) | CN103096954B (ja) |
BR (1) | BR112013001622B1 (ja) |
CA (1) | CA2806036C (ja) |
ES (3) | ES2525016T3 (ja) |
MX (1) | MX371135B (ja) |
WO (1) | WO2012012603A1 (ja) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
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US9308353B2 (en) | 2010-07-29 | 2016-04-12 | Retractable Technologies, Inc. | Needle retraction apparatus |
US9814841B2 (en) | 2008-06-10 | 2017-11-14 | Retractable Technologies, Inc. | Medical device with sliding frontal attachment and retractable needle |
US9381309B2 (en) | 2008-06-10 | 2016-07-05 | Retractable Technologies, Inc. | Frontal attachment device for syringe with pinch-activated retraction |
US8323249B2 (en) | 2009-08-14 | 2012-12-04 | The Regents Of The University Of Michigan | Integrated vascular delivery system |
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