JP5228004B2 - 撓み可能なカテーテル組立体およびそれを製造する方法 - Google Patents
撓み可能なカテーテル組立体およびそれを製造する方法 Download PDFInfo
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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
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0136—Handles therefor
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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
- A61M25/0009—Making of catheters or other medical or surgical tubes
- A61M25/0012—Making of catheters or other medical or surgical tubes with embedded structures, e.g. coils, braids, meshes, strands or radiopaque coils
-
- 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
- A61M25/0009—Making of catheters or other medical or surgical tubes
- A61M25/0013—Weakening parts of a catheter tubing, e.g. by making cuts in the tube or reducing thickness of a layer at one point to adjust the flexibility
-
- 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
- A61M25/0054—Catheters; Hollow probes characterised by structural features with regions for increasing flexibility
-
- 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
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0138—Tip steering devices having flexible regions as a result of weakened outer material, e.g. slots, slits, cuts, joints or coils
-
- 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
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
-
- 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
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0152—Tip steering devices with pre-shaped mechanisms, e.g. pre-shaped stylets or pre-shaped outer tubes
-
- 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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M2025/004—Multi-lumen catheters with stationary elements characterized by lumina being arranged circumferentially
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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
- A61M25/0043—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
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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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0082—Catheter tip comprising a tool
- A61M25/0084—Catheter tip comprising a tool being one or more injection needles
- A61M2025/0089—Single injection needle protruding axially, i.e. along the longitudinal axis of the catheter, from the distal tip
-
- 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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0082—Catheter tip comprising a tool
- A61M25/0084—Catheter tip comprising a tool being one or more injection needles
- A61M2025/0089—Single injection needle protruding axially, i.e. along the longitudinal axis of the catheter, from the distal tip
- A61M2025/009—Single injection needle protruding axially, i.e. along the longitudinal axis of the catheter, from the distal tip the needle having a bent tip, i.e. the needle distal tip is angled in relation to the longitudinal axis of the catheter
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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
- A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
- A61M25/0082—Catheter tip comprising a tool
- A61M2025/0096—Catheter tip comprising a tool being laterally outward extensions or tools, e.g. hooks or fibres
-
- 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
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0133—Tip steering devices
- A61M25/0147—Tip steering devices with movable mechanical means, e.g. pull wires
- A61M2025/015—Details of the distal fixation of the movable mechanical means
-
- 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
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M25/0029—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the middle part of the catheter, e.g. slots, flaps, valves, cuffs, apertures, notches, grooves or rapid exchange ports
-
- 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
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
-
- 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
- A61M25/005—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids
- A61M25/0051—Catheters; Hollow probes characterised by structural features with embedded materials for reinforcement, e.g. wires, coils, braids made from fenestrated or weakened tubing layer
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Pulmonology (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biophysics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Materials For Medical Uses (AREA)
Description
別の実施形態では、撓み可能なカテーテルが多数の半径方向の撓み方向を持つ撓み可能な遠位部分を有するために、多テンドン装置が使用される。カテーテルシャフト内には、複数のテンドンが配置されており、複数のテンドンはカテーテルシャフトの第1腔内に配置されている。変更例として、各テンドンは複数の腔から選択された個々の腔に配置されている。各テンドンはカテーテル近位部分のところではカテーテルシャフトのほぼ中心に位置決めされており、また各テンドンはカテーテル遠位部分のところではカテーテルシャフトの中心を半径方向に外れて配置されている。複数のテンドンはカテーテル遠位部分を多数の半径方向に撓ませることができる。カテーテル取っ手はカテーテル遠位部分を撓ませるために複数のテンドンを移動させるための機構を有しており、カテーテル取っ手は多数の撓み半径方向を可能にする。
別の実施形態では、撓み可能なカテーテル組立体は、ニードルの侵入深さを監視するのを助けるためにニードルに連結された圧力変換器を有している。
前記の実施形態の特徴は添付の請求項に詳細に述べられている。これらの実施形態は同様な部分が同様な参照符号により示される下記の説明および添付図面を参照することにより最良に理解されるであろう。
カテーテルシャフト101が形成された後、マンドレルを取り出すことができる。マンドレルの取り出し後、腔は空になる。次いで、必要なら、カテーテル組立体100の内部構成部品をカテーテルシャフト101内に配置することができる。必要なら、カテーテルシャフト101の釣り合いを維持するために、不占有腔に腔充填材を充填することができる。
ストラット328、332、338、342の主な機能は圧縮ケージ122に柱状強度を与えることである。引張荷重が操向テンドン130に加えられてカテーテル遠位部分102の撓みを誘発すると、荷重の反作用が圧縮ケージ122内でストラット328、332、338、342により移送され、そしてカテーテル近位部分104に伝達される。圧縮ケージ122は、一対の対向しているストラット328、332、338または342が位置決めされている平面に対して垂直である方向に最も容易に横方向に撓む。
圧縮ケージ122は、溶融接合、接着または幾つかの同等な機械的結合技術により遠位カテーテルシャフト120の内面に取付けられてもよい。変更例として、圧縮ケージ122は遠位カテーテルジャケット120と組み合わされて1つの一体構成部品とされてもよい。変更例として、圧縮ケージ122は、その遠位端部および近位端部が対向したストラット328、332、338、342を介して軸方向荷重を伝達するように連結されているならば、遠位カテーテルシャフト118内に緩く存在してもよい。一実施形態では、熱源は、圧縮ケージ122の遠位部分122−Dおよび近位部分122−Pの上方に付与されるだけであって、ポリマーのみが溶融してこれらの2つの部分の中に入るようになっている。かくして、圧縮ケージ122は遠位部分122−Dと近位部分122−Pとの間の部分に緩く位置する。
幾つかの用途では、正確な回転応答が達成すべき魅力的な性能基準である。心臓の左心室における梗塞帯域への局部的な薬剤の送出しのような治療は予想可能な空間的投与を必要とする。従って、ニードルのような治療器具を互いから一定の間隔(例えば、1cm)以内の多数の目標部位に送出すことができることが重要である。プルワイヤは、緊張下でカテーテルシャフトの一方の側を圧縮状態にする。これにより、潜在的に、シャフトのウイッピングを生じ、その結果、カテーテルの未制御の回転運動が生じる。
以下に論述する模範的な実施形態は、多数の撓み方向を有するカテーテル組立体を説明する図45ないし図52を参照して説明するものである。これらの実施形態によれば、カテーテル組立体はカテーテルシャフトのまわりに360度、多数の方向またはあらゆる方向に撓む。これにより、カテーテルシャフトを回す必要が無くなる。図45ないし図52の実施形態は、使用し易いカテーテル組立体にあり、そして正確な治療投与で3D空洞内のあらゆる目標部位に届くことが可能である。
Claims (2)
- カテーテル近位部分およびカテーテル遠位部分を有しているカテーテルシャフトを備えており、前記カテーテル遠位部分は前記カテーテル近位部分より可撓性であり、
前記カテーテルシャフトの第1腔内に配置されたテンドン組立体およびニードル組立体を備えており、前記テンドン組立体は、引っ張られると、前記カテーテル遠位部分を撓ませることができ、
前記カテーテル近位部分のところで前記カテーテルシャフトに連結されたカテーテル取っ手を備えており、前記カテーテル取っ手は前記テンドン組立体を制御するための第1制御機構と、前記ニードル組立体を制御するための第2制御機構とを有しており、
前記カテーテル近位部分に沿っては、前記テンドン組立体はほぼ中央に位置決めされており、前記ニードル組立体は前記テンドン組立体のまわりに巻き付けられており、
前記カテーテル遠位部分に沿っては、前記テンドン組立体は前記カテーテル遠位部分の撓みを許容するために前記カテーテルシャフトの中心を外れて位置決めされており、前記ニードル組立体は前記テンドン組立体のまわりに巻き付けられていない、撓み可能なカテーテル組立体。 - カテーテル近位部分およびカテーテル遠位部分を有しているカテーテルシャフトを備えており、前記カテーテル遠位部分は前記カテーテル近位部分より可撓性であり、
前記カテーテルシャフトの第1腔内にテンドン組立体が配置されており、前記テンドンは引っ張られると、前記カテーテル遠位部分を撓ませることができ、
前記第1腔内にニードル組立体が配置されており、前記ニードル組立体は引込み可能且つ伸張可能であり、
前記カテーテルシャフトに連結されたカテーテル取っ手を備えており、前記カテーテル取っ手は前記テンドン組立体を制御するための第1制御機構と、前記ニードル組立体を制御するための第2制御機構とを有しており、
前記カテーテル近位部分に沿っては、前記ニードル組立体は前記カテーテルシャフト内にほぼ中央に位置決めされており、前記テンドン組立体は前記ニードル組立体のまわりに巻き付けられており、
前記カテーテル遠位部分に沿っては、前記テンドン組立体は前記カテーテル遠位部分の撓みを許容するために前記カテーテルシャフトの中心を外れて位置決めされており、前記テンドン組立体は前記ニードル組立体のまわりに巻き付けられていない、撓み可能なカテーテル組立体。
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US10/676,616 | 2003-09-30 | ||
US10/676,616 US7998112B2 (en) | 2003-09-30 | 2003-09-30 | Deflectable catheter assembly and method of making same |
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US8016784B1 (en) | 2011-09-13 |
JP2010264280A (ja) | 2010-11-25 |
ATE524210T1 (de) | 2011-09-15 |
US20050070844A1 (en) | 2005-03-31 |
EP2308540B1 (en) | 2014-04-30 |
EP1673129A2 (en) | 2006-06-28 |
HK1156555A1 (en) | 2012-06-15 |
WO2005032637A2 (en) | 2005-04-14 |
EP2308540A1 (en) | 2011-04-13 |
JP2007507294A (ja) | 2007-03-29 |
WO2005032637A3 (en) | 2005-07-21 |
JP4907351B2 (ja) | 2012-03-28 |
ES2492140T3 (es) | 2014-09-08 |
EP1673129B1 (en) | 2011-09-14 |
ES2373089T3 (es) | 2012-01-31 |
US7998112B2 (en) | 2011-08-16 |
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