JP4611278B2 - 可撓性の注射針 - Google Patents
可撓性の注射針 Download PDFInfo
- Publication number
- JP4611278B2 JP4611278B2 JP2006500584A JP2006500584A JP4611278B2 JP 4611278 B2 JP4611278 B2 JP 4611278B2 JP 2006500584 A JP2006500584 A JP 2006500584A JP 2006500584 A JP2006500584 A JP 2006500584A JP 4611278 B2 JP4611278 B2 JP 4611278B2
- Authority
- JP
- Japan
- Prior art keywords
- state
- injection needle
- needle
- tube
- injection
- 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.)
- Expired - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
-
- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M2025/0063—Catheters; Hollow probes characterised by structural features having means, e.g. stylets, mandrils, rods or wires to reinforce or adjust temporarily the stiffness, column strength or pushability of catheters which are already inserted into the human body
- A61M2025/0064—Catheters; Hollow probes characterised by structural features having means, e.g. stylets, mandrils, rods or wires to reinforce or adjust temporarily the stiffness, column strength or pushability of catheters which are already inserted into the human body which become stiffer or softer when heated
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/36—General characteristics of the apparatus related to heating or cooling
- A61M2205/3606—General characteristics of the apparatus related to heating or cooling cooled
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Surgical Instruments (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Description
弾性率を変化させることにより注射針の撓み強度の変化を生じさせることに代えて、注射針の臨界的な慣性モーメントを変更させ、すなわち注射針又は注射針の少なくとも一部分の形状を変化させることにより、撓み強度を変化させることができる。最後に、撓み強度は、弾性率及び慣性モーメントを変化させることの組み合わせによって変化させることもできる。
1dは、図1cに従った注射針の断面図である。
2cは、可撓性の第二の状態にある第二の実施の形態に従った注射針の断面図である。
3cは、本発明に従った注射針の第三の実施の形態を示す概略図である。
2 端部
3 先端
4 通路
5 壁
6 開口部
7 管/形状記憶材料
8 フィラー材料
9 −
10 折り重ね領域
11 孔領域
12 挿入先端
13 伸長体
14 取り付け箇所
15 中空の空間
16 切り換え要素
17 ヘリカルばね
18 スペーサ
19 隙間空間
20 フィラー材料
21 リング
22 端部壁
23 仕切り壁
24 支持基質
25 フィラー材料
Claims (9)
- 挿入した状態にて可撓性であり且つ流体を導入するための通路を有する、身体組織内に注射するための注射針(1)において、
単一の管状部材から成り、身体組織に挿入するために鋭利な先端縁を有し、
第一の状態において、挿入に十分な撓み強度を有し、また、第二の状態において減少した撓み強度を有する少なくとも1つの材料(7)により少なくとも部分的に形成され、
力が長手方向に向けて注射針(1)に加わるとき剛性であり、力が注射針の長手方向軸線に対して半径方向に加わるとき可撓性であり、
注射針(1)が、第一の状態において、その円周に長手方向に伸びる少なくとも1つの端縁(2)を有し、第二の状態において、端縁無しの円周を有することを特徴とする、注射針。 - 挿入した状態にて可撓性であり且つ流体を導入するための通路を有する、身体組織内に注射するための注射針(1)において、
単一の管状部材から成り、身体組織に挿入するために鋭利な先端縁を有し、
第一の状態において、挿入に十分な撓み強度を有し、また、第二の状態において減少した撓み強度を有する少なくとも1つの材料(7)により少なくとも部分的に形成され、
力が長手方向に向けて注射針(1)に加わるとき剛性であり、力が注射針の長手方向軸線に対して半径方向に加わるとき可撓性であり、
第一の状態において、内部の中空の空間が存在しない設計とされ、第二の状態において、注射針の長手方向軸線に沿った内部通路(4)が存在する設計とされることを特徴とする、注射針。 - 挿入した状態にて可撓性であり且つ流体を導入するための通路を有する、身体組織内に注射するための注射針(1)において、
単一の管状部材から成り、身体組織に挿入するために鋭利な先端縁を有し、
第一の状態において、挿入に十分な撓み強度を有し、また、第二の状態において減少した撓み強度を有する少なくとも1つの材料(7)により少なくとも部分的に形成され、
力が長手方向に向けて注射針(1)に加わるとき剛性であり、力が注射針の長手方向軸線に対して半径方向に加わるとき可撓性であり、
第一の状態において、閉じた先端(3)を有し、第二の状態において、先端(3)の開口部(6)を有することを特徴とする、注射針。 - 請求項1ないし3の1つに記載の注射針(1)において、少なくとも部分的に形状記憶材料(7)にて出来ていることを特徴とする、注射針。
- 請求項1ないし3の1つに記載の注射針(1)において、その全長に沿って形状記憶材料(7)にて出来ていることを特徴とする、注射針。
- 請求項1ないし3の1つに記載の注射針において、状態を変化させる材料(7)が、第一の状態において1000MPa以上の弾性率と、第二の状態において1000MPa以下の弾性率とを有することを特徴とする、注射針。
- 請求項6に記載の注射針において、その状態を変化させる材料(7)が、第一の状態において少なくとも3000MPaの弾性率と、第二の状態において最大800MPaの弾性率とを有することを特徴とする、注射針。
- 請求項1ないし3の1つに記載の注射針において、注射針に対し電圧又は放射線を印加する、状態を変化させる手段を通じて第一の状態から第二の状態への状態の変化が実現されることを特徴とする、注射針。
- 請求項1ないし3の1つに記載の注射針において、状態の変化が可逆的であることを特徴とする、注射針。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH732003 | 2003-01-17 | ||
DE2003106013 DE10306013A1 (de) | 2003-01-17 | 2003-02-13 | Temperatursensible Kanüle |
PCT/EP2004/000309 WO2004064898A1 (de) | 2003-01-17 | 2004-01-16 | Biegsame einstechnadel |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006514873A JP2006514873A (ja) | 2006-05-18 |
JP4611278B2 true JP4611278B2 (ja) | 2011-01-12 |
Family
ID=32772545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006500584A Expired - Fee Related JP4611278B2 (ja) | 2003-01-17 | 2004-01-16 | 可撓性の注射針 |
Country Status (8)
Country | Link |
---|---|
US (2) | US7513891B2 (ja) |
EP (1) | EP1583572B1 (ja) |
JP (1) | JP4611278B2 (ja) |
AT (1) | ATE361109T1 (ja) |
CA (1) | CA2511574C (ja) |
DE (1) | DE502004003673D1 (ja) |
ES (1) | ES2285412T3 (ja) |
WO (2) | WO2004064898A1 (ja) |
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-
2004
- 2004-01-16 AT AT04702689T patent/ATE361109T1/de active
- 2004-01-16 WO PCT/EP2004/000309 patent/WO2004064898A1/de active IP Right Grant
- 2004-01-16 WO PCT/EP2004/000310 patent/WO2004064593A2/de active Application Filing
- 2004-01-16 ES ES04702689T patent/ES2285412T3/es not_active Expired - Lifetime
- 2004-01-16 DE DE502004003673T patent/DE502004003673D1/de not_active Expired - Lifetime
- 2004-01-16 CA CA2511574A patent/CA2511574C/en not_active Expired - Fee Related
- 2004-01-16 JP JP2006500584A patent/JP4611278B2/ja not_active Expired - Fee Related
- 2004-01-16 EP EP04702689A patent/EP1583572B1/de not_active Expired - Lifetime
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2005
- 2005-07-15 US US11/183,270 patent/US7513891B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
WO2004064898A1 (de) | 2004-08-05 |
EP1583572A1 (de) | 2005-10-12 |
JP2006514873A (ja) | 2006-05-18 |
EP1583572B1 (de) | 2007-05-02 |
US7513891B2 (en) | 2009-04-07 |
US7435240B2 (en) | 2008-10-14 |
ATE361109T1 (de) | 2007-05-15 |
US20060030824A1 (en) | 2006-02-09 |
US20050283125A1 (en) | 2005-12-22 |
DE502004003673D1 (de) | 2007-06-14 |
WO2004064593A2 (de) | 2004-08-05 |
CA2511574A1 (en) | 2004-08-05 |
WO2004064593A3 (de) | 2004-09-16 |
ES2285412T3 (es) | 2007-11-16 |
CA2511574C (en) | 2011-07-19 |
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