JPWO2009123026A1 - 医療器具 - Google Patents
医療器具 Download PDFInfo
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- JPWO2009123026A1 JPWO2009123026A1 JP2010505802A JP2010505802A JPWO2009123026A1 JP WO2009123026 A1 JPWO2009123026 A1 JP WO2009123026A1 JP 2010505802 A JP2010505802 A JP 2010505802A JP 2010505802 A JP2010505802 A JP 2010505802A JP WO2009123026 A1 JPWO2009123026 A1 JP WO2009123026A1
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Images
Classifications
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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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
- A61M25/0637—Butterfly or winged devices, e.g. for facilitating handling or for attachment to the skin
-
- 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
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
- A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
- A61M2005/325—Means obstructing the needle passage at distal end of a needle protection sleeve
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
- A61M25/0618—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard
- A61M25/0625—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard with a permanent connection to the needle hub, e.g. a guiding rail, a locking mechanism or a guard advancement mechanism
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0693—Flashback chambers
-
- 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
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
-
- 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
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
- A61M5/3275—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel being connected to the needle hub or syringe by radially deflectable members, e.g. longitudinal slats, cords or bands
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
主管と、前記主管の流路から分岐した分岐流路を有する側管とを備える医療器具であって、
前記主管の流路を流れる液体のうち、前記分岐流路の位置する側の前記主管の内面に沿って流れる液体の、前記主管の軸方向の速度を低減させる速度低減手段を有することを特徴とする医療器具である。
前記開口を介して、前記主管の流路と前記側管の分岐流路とが連通しているのが好ましい。
前記直線部分は、液体が前記主管側から前記側管側に流れるときの上流側に位置しているのが好ましい。
前記外針の基端部に固定された外針ハブに、前記主管、前記側管および前記速度低減手段が、それぞれ形成されているのが好ましい。
なお、本発明は、主管と、その主管の流路から分岐した分岐流路を有する側管とを備える各種の医療器具に適用することができるが、下記の実施形態では、代表的に、本発明の医療器具を留置針組立体に適用した場合について説明する。
図1は、本発明の医療器具を留置針組立体に適用した場合の第1実施形態を示す平面図、図2は、図1に示す留置針組立体の外針、外針ハブ、内針およびチューブを示す断面図、図3は、図1中のA−A線断面図、図4は、図1に示す留置針組立体の外針ハブの主要部を示す断面図である。また、図5は、図4中のC−C線断面図であり、図5(a)には、外針ハブの主要部が示されており、図5(b)には、段差部が示されている。また、図6は、図1に示す留置針組立体の外針ハブの主要部を示す斜視図、図7〜図11は、それぞれ、図3中のB−B線断面図、図12は、図1に示す留置針組立体の連結部材の斜視図、図13および図14は、それぞれ、図1に示す留置針組立体の作用を説明するための図、図15〜図17は、それぞれ、図1に示す留置針組立体の外針ハブの段差部の他の構成例を示す平面図である。
図18は、本発明の医療器具を留置針組立体に適用した場合の第2実施形態における外針ハブの主要部を示す断面図、図19は、図18中のD−D線断面図である。
Claims (10)
- 主管と、前記主管の流路から分岐した分岐流路を有する側管とを備える医療器具であって、
前記主管の流路を流れる液体のうち、前記分岐流路の位置する側の前記主管の内面に沿って流れる液体の、前記主管の軸方向の速度を低減させる速度低減手段を有することを特徴とする医療器具。 - 前記速度低減手段は、前記主管の内面に形成された開口を有し、
前記開口を介して、前記主管の流路と前記側管の分岐流路とが連通している請求項1に記載の医療器具。 - 前記開口は、前記主管の軸線に対して略垂直な直線部分を有する輪郭形状をなしており、
前記直線部分は、液体が前記主管側から前記側管側に流れるときの上流側に位置している請求項2に記載の医療器具。 - 前記速度低減手段は、前記開口と、前記分岐流路の前記主管側の先端との間に空間を形成する段差部である請求項2に記載の医療器具。
- 前記段差部は、前記開口に臨む縁に、90°以下の角度のエッジを有する請求項4に記載の医療器具。
- 前記速度低減手段は、前記主管の内面に突出形成された凸部である請求項1に記載の医療器具。
- 前記凸部は、液体が前記主管側から前記側管側に流れるときの、前記主管の流路に接続される前記分岐流路の先端開口よりも上流側で、かつ前記先端開口の近傍に位置している請求項6に記載の医療器具。
- 液体が前記主管側から前記側管側に流れるときの、前記主管の流路の前記分岐流路よりも下流側に、前記主管の流路を封止する封止手段が設けられている請求項1に記載の医療器具。
- 前記主管の先端側に設けられた留置針を有する請求項1に記載の医療器具。
- 前記留置針は、内針が挿通される中空の外針であり、
前記外針の基端部に固定された外針ハブに、前記主管、前記側管および前記速度低減手段が、それぞれ形成されている請求項9に記載の医療器具。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010505802A JP5427774B2 (ja) | 2008-03-31 | 2009-03-26 | 医療器具 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008093547 | 2008-03-31 | ||
JP2008093547 | 2008-03-31 | ||
JP2010505802A JP5427774B2 (ja) | 2008-03-31 | 2009-03-26 | 医療器具 |
PCT/JP2009/056191 WO2009123026A1 (ja) | 2008-03-31 | 2009-03-26 | 医療器具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2009123026A1 true JPWO2009123026A1 (ja) | 2011-07-28 |
JP5427774B2 JP5427774B2 (ja) | 2014-02-26 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2010505802A Active JP5427774B2 (ja) | 2008-03-31 | 2009-03-26 | 医療器具 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8109909B2 (ja) |
EP (1) | EP2258421B1 (ja) |
JP (1) | JP5427774B2 (ja) |
CN (1) | CN101980734B (ja) |
WO (1) | WO2009123026A1 (ja) |
Families Citing this family (18)
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US8323249B2 (en) | 2009-08-14 | 2012-12-04 | The Regents Of The University Of Michigan | Integrated vascular delivery system |
WO2011146769A2 (en) | 2010-05-19 | 2011-11-24 | Tangent Medical Technologies Llc | Integrated vascular delivery system |
US8814833B2 (en) | 2010-05-19 | 2014-08-26 | Tangent Medical Technologies Llc | Safety needle system operable with a medical device |
US20130158506A1 (en) * | 2011-05-19 | 2013-06-20 | Tangent Medical Technologies Llc | Catheter and needle system and method of inserting a catheter |
WO2015119940A1 (en) | 2014-02-04 | 2015-08-13 | Icu Medical, Inc. | Self-priming systems and methods |
US9775698B2 (en) | 2015-01-23 | 2017-10-03 | Spinal Singularity, Inc. | Urinary prosthesis systems |
US11065093B2 (en) * | 2015-01-23 | 2021-07-20 | Spinal Singularity, Inc. | Catheter mating devices |
US11510765B2 (en) | 2015-01-23 | 2022-11-29 | Spinal Singularity, Inc. | Extended-use catheters |
US10675435B2 (en) | 2015-04-01 | 2020-06-09 | Spinal Singularity, Inc. | Extended-use valved urinary catheter |
US10751506B2 (en) | 2015-04-01 | 2020-08-25 | Spinal Singularity, Inc. | Catheters and catheter mating devices and systems |
US10850046B2 (en) | 2016-03-28 | 2020-12-01 | Becton, Dickinson And Company | Cannula locator device |
US10835718B2 (en) * | 2016-03-28 | 2020-11-17 | Becton, Dickinson And Company | Cannula with light-emitting optical fiber |
US11478150B2 (en) | 2016-03-28 | 2022-10-25 | Becton, Dickinson And Company | Optical fiber sensor |
CN106310447B (zh) * | 2016-08-23 | 2022-11-29 | 广东龙心医疗器械有限公司 | 留置针 |
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US11504500B2 (en) * | 2019-01-14 | 2022-11-22 | Becton, Dickinson And Company | Reduced dead space catheter adapter |
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JP5033637B2 (ja) | 2005-11-01 | 2012-09-26 | テルモ株式会社 | 留置針組立体 |
JP4970430B2 (ja) * | 2006-03-30 | 2012-07-04 | テルモ株式会社 | 留置針組立体 |
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EP2258421A4 (en) | 2014-04-02 |
EP2258421B1 (en) | 2019-09-04 |
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CN101980734A (zh) | 2011-02-23 |
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