JP5550638B2 - 医療用容器 - Google Patents
医療用容器 Download PDFInfo
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- JP5550638B2 JP5550638B2 JP2011510268A JP2011510268A JP5550638B2 JP 5550638 B2 JP5550638 B2 JP 5550638B2 JP 2011510268 A JP2011510268 A JP 2011510268A JP 2011510268 A JP2011510268 A JP 2011510268A JP 5550638 B2 JP5550638 B2 JP 5550638B2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
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- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
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- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
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- A61M5/31596—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms comprising means for injection of two or more media, e.g. by mixing
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- A61M5/31596—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms comprising means for injection of two or more media, e.g. by mixing
- A61M2005/31598—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms comprising means for injection of two or more media, e.g. by mixing having multiple telescopically sliding coaxial pistons encompassing volumes for components to be mixed
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- A—HUMAN NECESSITIES
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- 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
- A61M5/28—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle
- A61M5/281—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule
- A61M5/282—Syringe ampoules or carpules, i.e. ampoules or carpules provided with a needle using emptying means to expel or eject media, e.g. pistons, deformation of the ampoule, or telescoping of the ampoule by compression of deformable ampoule or carpule wall
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- A—HUMAN NECESSITIES
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- 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
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- A61M5/3148—Means for causing or aiding aspiration or plunger retraction
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmacology & Pharmacy (AREA)
- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
上記目的を達成するために、本発明は、先端部に液体が出入り可能な口部を有する筒体と、
前記筒体の内側に設置され、可撓性を有し、反転する袋体とを備え、
前記口部を介して液体が出入りすることにより、前記袋体が反転して、前記筒体と前記袋体とで囲まれた空間の容積が変化するよう構成されており、
前記袋体は、底部と該底部の縁部に一体的に形成された側部とを有し、
前記側部の厚さが前記底部の厚さよりも薄いことと、前記底部の材質が前記側部の材質よりも硬質であることとの少なくとも一方を満足し、
前記袋体は、前記筒体内の軸方向の中間付近を支点として反転し、
前記側部は、前記袋体が反転した際、前記筒体の前記支点より先端側の部分に密着することを特徴とする医療用容器である。
前記ガスケットとともに前記筒体がその軸方向に移動可能に挿入されたシリンジ外筒とをさらに備え、
前記空間は、前記口部を介して、前記シリンジ外筒と前記ガスケットとで囲まれた先端側空間と連通可能であるのが好ましい。
前記段差部に前記袋体の開口部が固定されているのが好ましい。
前記筒体の先端部に装着されたガスケットと、
前記ガスケットとともに前記筒体がその軸方向に移動可能に挿入されたシリンジ外筒とを備えるシリンジであるのが好ましい。
図1〜図3は、それぞれ、本発明の医療用容器をバイアル容器に適用した場合の実施形態を示す縦断面図である。なお、以下では、説明の都合上、図1〜図3中の下側を「基端」、上側を「先端」と言う。
容器本体2Aは、有底筒状をなし、その底部22に口部7が突出して形成されたものである。この容器本体2Aには、その内周部23の途中に、内径が急峻に変化した段差部231が形成されている。段差部231は、袋体3Aが固定される固定部となるとともに、袋体3Aが反転する際の支点にもなる。また、容器本体2Aは、段差部231を介して、先端側の小径部24と、基端側の大径部25とに分けることができる。
嵌合部82は、リング状をなし、その内径が容器本体2Aの大径部25の外径よりも若干小さく設定されている。これにより、嵌合部82が大径部25に嵌合することとなり、よって、基端キャップ8Aが容器本体2Aの基端開口部26に確実に装着され、当該基端開口部26から離脱するのが防止される。
[1] 図1に示す初期状態では、袋体3Aは、そのほとんどの部分(縁部331以外の部分)が容器本体2Aの小径部24に位置している。初期状態の袋体3Aは、その底部31が容器本体2Aの底部22と離間しており、側部32が容器本体2Aの内周部23に密着している。このときの収納空間21は、底部31(隆起部311を含む)と底部22(口部7を含む)とで囲まれたものとなっている。
図4〜図6は、それぞれ、本発明の医療用容器をシリンジに適用した場合の実施形態(本発明のシリンジ)を示す縦断面図、図7は、図4中のA−A線断面図、図8は、図4中の一点鎖線で囲まれた領域[B]の拡大図である。なお、以下では、説明の都合上、図4〜図6中の上側を「基端」、下側を「先端」と言う。
[1] 図4に示す初期状態では、袋体3Bは、内筒2Bの大径部25に位置している。このときの収納空間21は、袋体3Bの底部31および側部32と、内筒2Bの底部22および小径部24とで囲まれたものとなっている。そして、収納空間21内に液体Qが充填されている。
また、空間内の液体が吸引されると、それとともに、空間の容積が減少する方向に袋体が反転する。このように袋体が反転して空間の容積が減少するときにも、袋体と筒体との間に摩擦抵抗が実質的に発生せず、よって、その抵抗力を感じることなく液体を排出することができる。従って、本発明は、液体の排出時の操作性にも優れたものとなっている。
また、隆起部を有する場合には、液体が排出された際に、空間が実質的に消失するため、当該空間内に液体が残留するのが防止または抑制され、よって、液体を無駄なく使い切ることができる。
従って、産業上の利用可能性を有する。
Claims (4)
- 先端部に液体が出入り可能な口部を有する筒体と、
前記筒体の内側に設置され、可撓性を有し、反転する袋体とを備え、
前記口部を介して液体が出入りすることにより、前記袋体が反転して、前記筒体と前記袋体とで囲まれた空間の容積が変化するよう構成されており、
前記袋体は、底部と該底部の縁部に一体的に形成された側部とを有し、
前記側部の厚さが前記底部の厚さよりも薄いことと、前記底部の材質が前記側部の材質よりも硬質であることとの少なくとも一方を満足し、
前記袋体は、前記筒体内の軸方向の中間付近を支点として反転し、
前記側部は、前記袋体が反転した際、前記筒体の前記支点より先端側の部分に密着することを特徴とする医療用容器。 - 前記底部と前記側部との境界部には、柔軟な薄肉部が形成されている請求項1に記載の医療用容器。
- 前記袋体は、液体が前記口部を介して流出した際、逆転して前記口部に入り込む隆起部を有する請求項1に記載の医療用容器。
- 前記筒体の先端部に装着されたガスケットと、
前記ガスケットとともに前記筒体がその軸方向に移動可能に挿入されたシリンジ外筒とをさらに備え、
前記空間は、前記口部を介して、前記シリンジ外筒と前記ガスケットとで囲まれた先端側空間と連通可能である請求項1に記載の医療用容器。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011510268A JP5550638B2 (ja) | 2009-04-21 | 2010-03-26 | 医療用容器 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009103182 | 2009-04-21 | ||
JP2009103182 | 2009-04-21 | ||
PCT/JP2010/055315 WO2010122872A1 (ja) | 2009-04-21 | 2010-03-26 | 医療用容器およびシリンジ |
JP2011510268A JP5550638B2 (ja) | 2009-04-21 | 2010-03-26 | 医療用容器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2010122872A1 JPWO2010122872A1 (ja) | 2012-10-25 |
JP5550638B2 true JP5550638B2 (ja) | 2014-07-16 |
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Application Number | Title | Priority Date | Filing Date |
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JP2011510268A Active JP5550638B2 (ja) | 2009-04-21 | 2010-03-26 | 医療用容器 |
Country Status (5)
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US (1) | US9155679B2 (ja) |
EP (1) | EP2422761B1 (ja) |
JP (1) | JP5550638B2 (ja) |
CN (1) | CN102395346B (ja) |
WO (1) | WO2010122872A1 (ja) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6695817B1 (en) | 2000-07-11 | 2004-02-24 | Icu Medical, Inc. | Medical valve with positive flow characteristics |
US20060161115A1 (en) | 2004-11-05 | 2006-07-20 | Fangrow Thomas F | Soft-grip medical connector |
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- 2010-03-26 US US13/265,522 patent/US9155679B2/en active Active
- 2010-03-26 CN CN201080017172.XA patent/CN102395346B/zh active Active
- 2010-03-26 EP EP10766931.9A patent/EP2422761B1/en not_active Not-in-force
- 2010-03-26 WO PCT/JP2010/055315 patent/WO2010122872A1/ja active Application Filing
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Also Published As
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EP2422761B1 (en) | 2016-11-02 |
EP2422761A4 (en) | 2014-02-26 |
JPWO2010122872A1 (ja) | 2012-10-25 |
WO2010122872A1 (ja) | 2010-10-28 |
EP2422761A1 (en) | 2012-02-29 |
CN102395346A (zh) | 2012-03-28 |
US20120053529A1 (en) | 2012-03-01 |
CN102395346B (zh) | 2014-01-29 |
US9155679B2 (en) | 2015-10-13 |
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