JP5033637B2 - 留置針組立体 - Google Patents
留置針組立体 Download PDFInfo
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- JP5033637B2 JP5033637B2 JP2007542761A JP2007542761A JP5033637B2 JP 5033637 B2 JP5033637 B2 JP 5033637B2 JP 2007542761 A JP2007542761 A JP 2007542761A JP 2007542761 A JP2007542761 A JP 2007542761A JP 5033637 B2 JP5033637 B2 JP 5033637B2
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- Prior art keywords
- needle
- outer needle
- inner needle
- protector
- indwelling
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- Expired - Fee Related
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- 210000004369 blood Anatomy 0.000 claims description 39
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- 239000007788 liquid Substances 0.000 claims description 23
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- 229940036348 bismuth carbonate Drugs 0.000 description 1
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- GMZOPRQQINFLPQ-UHFFFAOYSA-H dibismuth;tricarbonate Chemical compound [Bi+3].[Bi+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O GMZOPRQQINFLPQ-UHFFFAOYSA-H 0.000 description 1
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Images
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
- A61M5/14—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
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/06—Body-piercing guide needles or the like
- A61M25/0606—"Over-the-needle" catheter assemblies, e.g. I.V. catheters
-
- 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
-
- 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
- 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
- A61M5/178—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
- 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
- A61M5/3273—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel freely sliding on needle shaft without connection to syringe or 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
- A61M5/3243—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)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Vascular Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Description
血管に穿刺し、留置する留置針組立体であって、
先端に鋭利な針先を有する内針と、
前記内針の基端部に固定された内針ハブと、
前記内針が挿通される中空の外針と、
前記外針の基端部に固定された外針ハブと、
前記外針ハブの基端部または側方部に、前記外針の内腔と連通するように設けられた開口と、
前記外針ハブに設けられ、前記内針を挿通可能な孔が形成され、かつ、挿通された内針を抜去した際に前記孔が閉塞するシール部材と、
前記内針を前記外針に挿通し、前記開口を経て前記外針の先端開口付近にまで液体を充填した状態で、前記内針および前記外針を血管に穿刺したとき、前記外針の先端開口から流入した血液を外部から視認可能な視認部と、
容積が増大することにより、前記充填された液体を逃す緩衝部とを有し、
前記緩衝部に前記充填された液体が逃げることにより、前記血液の流入が促進され、
前記開口には、チューブが接続されており、
前記緩衝部は、前記チューブに設けられ、該チューブの少なくとも一部が拡径し得る拡径部であることを特徴とする留置針組立体である。
第1図は、本発明の留置針組立体の第1実施形態を示す斜視図、第2図〜第6図は、それぞれ、第1図(第14図も同様)中のA−A線断面図、第7図は、第1図に示す留置針組立体の第6図に対応する斜視図、第8図は、第1図に示す留置針組立体において、内針ハブからチューブを取り外した状態を示す斜視図、第9図は、第1図に示す留置針組立体が有するシール部材の斜視図である。
まず、固定手段について説明する。
次に、係合手段について説明する。
第10図および第11図は、それぞれ、参考例としての留置針組立体(第2実施形態)の部分縦断面図である。
本実施形態は、緩衝部の構成が異なること以外は前記第1実施形態と同様である。
第12図は、参考例としての留置針組立体(第3実施形態)の部分縦断面図である。
本実施形態は、緩衝部の構成が異なること以外は前記第1実施形態と同様である。
第13図は、参考例としての留置針組立体(第4実施形態)の部分縦断面図である。
本実施形態は、緩衝部の構成が異なること以外は前記第1実施形態と同様である。
第14図は、本発明の留置針組立体の第5実施形態を示す斜視図、第15図は、第14図に示す留置針組立体にプロテクタが装着されたときの側面図(部分縦断面図)、第16図は、第15図中のB−B線断面図である。
以下、これらの図を参照して本発明の留置針組立体の第5実施形態について説明するが、前述した実施形態との相違点を中心に説明し、同様の事項はその説明を省略する。
本実施形態は、留置針組立体がプロテクタをさらに有すること以外は前記第1実施形態と同様である。
この操作方法には、下記に示す2つの方法が挙げられる。
プロテクタ本体401の先端部を一方の手で把持し、内針ハブ5の基端部を他方の手で把持する。そして、その状態で、プロテクタ本体401と内針ハブ5とを互いに反対方向に、すなわち、プロテクタ本体401を先端方向に、内針ハブ5を基端方向に、引張る。
このような操作方法により、プロテクタ40を外すことができる。
第15図に示すように、右手または左手(図中では、右手)、すなわち、片手で内針ハブ5を把持する。そして、装着部402に形成された指当て部406に、右手の指(図中では、人差し指)を宛てる。その状態で、装着部402(指当て部406)を先端方向に押圧する。これにより、人差し指よる押圧力が連結部403に伝わって、プロテクタ本体401(プロテクタ40)が外れる(離脱する)。
また、装着状態のプロテクタ40の装着部402の内針ハブ5に対する係合は、挟持による方法を用いたが、これに限定されず、例えば、嵌合による方法、凹凸の接合による方法、比較的弱い接着による方法、溶着による方法、フィルムやシールで装着部402と内針ハブ5とを巻き付ける方法であってもよい。
Claims (2)
- 血管に穿刺し、留置する留置針組立体であって、
先端に鋭利な針先を有する内針と、
前記内針の基端部に固定された内針ハブと、
前記内針が挿通される中空の外針と、
前記外針の基端部に固定された外針ハブと、
前記外針ハブの基端部または側方部に、前記外針の内腔と連通するように設けられた開口と、
前記外針ハブに設けられ、前記内針を挿通可能な孔が形成され、かつ、挿通された内針を抜去した際に前記孔が閉塞するシール部材と、
前記内針を前記外針に挿通し、前記開口を経て前記外針の先端開口付近にまで液体を充填した状態で、前記内針および前記外針を血管に穿刺したとき、前記外針の先端開口から流入した血液を外部から視認可能な視認部と、
容積が増大することにより、前記充填された液体を逃す緩衝部とを有し、
前記緩衝部に前記充填された液体が逃げることにより、前記血液の流入が促進され、
前記開口には、チューブが接続されており、
前記緩衝部は、前記チューブに設けられ、該チューブの少なくとも一部が拡径し得る拡径部であることを特徴とする留置針組立体。 - 前記緩衝部には、0.05〜15μLの前記液体が入り込む請求項1に記載の留置針組立体。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007542761A JP5033637B2 (ja) | 2005-11-01 | 2006-10-31 | 留置針組立体 |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005318883 | 2005-11-01 | ||
JP2005318885 | 2005-11-01 | ||
JP2005318885 | 2005-11-01 | ||
JP2005318883 | 2005-11-01 | ||
JP2007542761A JP5033637B2 (ja) | 2005-11-01 | 2006-10-31 | 留置針組立体 |
PCT/JP2006/321747 WO2007052656A1 (ja) | 2005-11-01 | 2006-10-31 | 留置針組立体 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2007052656A1 JPWO2007052656A1 (ja) | 2009-04-30 |
JP5033637B2 true JP5033637B2 (ja) | 2012-09-26 |
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JP5427774B2 (ja) * | 2008-03-31 | 2014-02-26 | テルモ株式会社 | 医療器具 |
EP2327434A4 (en) * | 2008-09-10 | 2014-08-06 | Terumo Corp | MEDICAL DEVICE |
US8323249B2 (en) | 2009-08-14 | 2012-12-04 | The Regents Of The University Of Michigan | Integrated vascular delivery system |
US8771230B2 (en) | 2010-05-19 | 2014-07-08 | 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 |
US9750928B2 (en) | 2013-02-13 | 2017-09-05 | Becton, Dickinson And Company | Blood control IV catheter with stationary septum activator |
JP6461174B2 (ja) * | 2014-02-04 | 2019-01-30 | アイシーユー・メディカル・インコーポレーテッド | 自己プライミングシステムおよび自己プライミング方法 |
US9789279B2 (en) | 2014-04-23 | 2017-10-17 | Becton, Dickinson And Company | Antimicrobial obturator for use with vascular access devices |
US10376686B2 (en) | 2014-04-23 | 2019-08-13 | Becton, Dickinson And Company | Antimicrobial caps for medical connectors |
US10232088B2 (en) | 2014-07-08 | 2019-03-19 | Becton, Dickinson And Company | Antimicrobial coating forming kink resistant feature on a vascular access device |
US10493244B2 (en) | 2015-10-28 | 2019-12-03 | Becton, Dickinson And Company | Extension tubing strain relief |
CN107050622A (zh) * | 2015-12-01 | 2017-08-18 | B.布劳恩梅尔松根股份公司 | 具有双稳态结构的针装置及相关方法 |
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JPH0361236U (ja) * | 1989-10-17 | 1991-06-17 | ||
JPH10179734A (ja) * | 1996-10-25 | 1998-07-07 | Terumo Corp | 留置針組立体 |
JP2000116791A (ja) * | 1998-10-13 | 2000-04-25 | Terumo Corp | 留置針組立体および弁体 |
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JP3249703B2 (ja) * | 1995-04-06 | 2002-01-21 | 株式会社ニフコ | キャップ付き注射器 |
JP3061236U (ja) * | 1999-02-04 | 1999-09-17 | 和雄 落合 | スポイト付き翼状針 |
JP2002065850A (ja) * | 2000-08-28 | 2002-03-05 | Terumo Corp | 穿刺具 |
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JPH0361236U (ja) * | 1989-10-17 | 1991-06-17 | ||
JPH10179734A (ja) * | 1996-10-25 | 1998-07-07 | Terumo Corp | 留置針組立体 |
JP2000116791A (ja) * | 1998-10-13 | 2000-04-25 | Terumo Corp | 留置針組立体および弁体 |
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