JP4566752B2 - 医療器具 - Google Patents
医療器具 Download PDFInfo
- Publication number
- JP4566752B2 JP4566752B2 JP2004564960A JP2004564960A JP4566752B2 JP 4566752 B2 JP4566752 B2 JP 4566752B2 JP 2004564960 A JP2004564960 A JP 2004564960A JP 2004564960 A JP2004564960 A JP 2004564960A JP 4566752 B2 JP4566752 B2 JP 4566752B2
- Authority
- JP
- Japan
- Prior art keywords
- balloon
- cutting element
- medical device
- cutting
- catheter
- 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
Links
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Images
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- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0076—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof multilayered, e.g. laminated structures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0028—Shapes in the form of latin or greek characters
- A61F2230/0054—V-shaped
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0028—Shapes in the form of latin or greek characters
- A61F2230/0058—X-shaped
-
- 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
- A61M25/10—Balloon catheters
- A61M25/1002—Balloon catheters characterised by balloon shape
- A61M2025/1004—Balloons with folds, e.g. folded or multifolded
-
- 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
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/1086—Balloon catheters with special features or adapted for special applications having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves
Landscapes
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Optics & Photonics (AREA)
- Physics & Mathematics (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Materials For Medical Uses (AREA)
- Surgical Instruments (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Prostheses (AREA)
Description
バルーンは、10フレンチ(約3.3mm)のバルーンよりも小さくてもよく、例えば、7フレンチ(約2.3mm)、5フレンチ(約1.6mm)、又は3フレンチ(約1mm)のバルーンよりも小さくてもよい。
さらに他の態様において、本発明の医療器具は、膨張可能なバルーンと、同バルーンに担持される切断要素と、前記バルーンとは異なる変形可能な部材とを備え、同変形可能な部材は、前記切断要素の一部上に配置されることにより前記切断要素の刃先を覆っており、前記切断要素は、前記バルーンが拡張すると、前記変形可能な部材に穴を開けることができて前記刃先が前記変形可能な部材から露出できることとを特徴とする。
本発明の実施例は、以下の特徴の一つ以上を含んでいてもよい。切断要素はダイヤモンドを備える。切断要素は、約5,700kg/mm2よりも高い硬度を有する材料を備える。切断要素は、約50ナノメートル未満の曲率半径を備える刃先を有する。切断要素は刃先を有し、ステントは、延びて刃先に達する変形可能な部材をさらに備える。人工器官は、管状部材の一部上にポリマー層をさらに有する。人工器官は、管状部材の一部上に薬剤放出層をさらに有する。人工器官は、管状部材上に配置された複数の切断要素を備える。管状部材は、バルーンにより拡張可能又は自ら拡張可能である。
幾つかの実施例において、薬剤、即ち、ヘパリン等の治療薬は、弾性材料30と切断要素26との間に配置即ち封入される。使用時において、刃先28が弾性材料30を貫通すると、薬剤即ち治療薬は切断領域へ放出される。薬剤や治療薬の例は、米国特許第5674242号明細書、2001年7月2日付けで出願された同特許出願第09/895415号、2002年8月30日付けで出願された同特許出願第10/232265号において記載されている。治療薬や薬学的に活性のある化合物には、抗血栓剤、抗酸化剤、抗炎症剤、麻酔剤、抗血液凝固剤及び抗生物質が含まれる。
他の実施例もまた、特許請求の範囲内にある。
Claims (17)
- 医療器具であって、
膨張可能なバルーンと、
同バルーンに担持される切断要素と、
前記バルーンとは異なる変形可能な部材とを備え、同変形可能な部材は、前記切断要素の一部上に配置されることにより前記切断要素の刃先を覆っており、前記切断要素は、前記バルーンが拡張すると、前記変形可能な部材に穴を開けることができて前記刃先が前記変形可能な部材から露出できることとを特徴とする医療器具。 - 前記切断要素はダイヤモンドを備える請求項1に記載の医療器具。
- 前記切断要素は、ヌープ硬度5,700kg/mm2よりも高い硬度を有する材料を備える請求項1に記載の医療器具。
- 前記変形可能な部材はポリマーからなる請求項1に記載の医療器具。
- 前記ポリマーは、シリコーンゴム及びウレタンから選択された材料である請求項4に記載の医療器具。
- 前記切断要素とバルーンとの間に第2部材をさらに備え、同第2部材は前記変形可能な部材よりも高い硬度を有する請求項1に記載の医療器具。
- 前記第2部材は、ポリイミド及びポリアミドから選択された材料からなる請求項6に記載の医療器具。
- 前記バルーンにより担持される複数の切断要素を備える請求項1に記載の医療器具。
- 同一線上に配置され、且つ、前記バルーンにより担持される複数の切断要素を備える請求項1に記載の医療器具。
- 前記バルーンの長手方向に対して重なり合うように配置される2つの近接する切断要素を備える請求項1に記載の医療器具。
- 前記切断要素は、50ナノメートル未満の曲率半径を備える刃先を有する請求項1に記載の医療器具。
- 前記切断要素は、20ナノメートル未満の曲率半径を備える刃先を有する請求項1に記載の医療器具。
- 前記切断要素は、10ナノメートル未満の曲率半径を備える刃先を有する請求項1に記載の医療器具。
- 前記バルーンの直径は、3.3mm未満である請求項1に記載の医療器具。
- 前記バルーンの直径は、2.3mm未満である請求項1に記載の医療器具。
- 前記バルーンの直径は、1.6mm未満である請求項1に記載の医療器具。
- 前記バルーンの直径は、1mm未満である請求項1に記載の医療器具。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/335,604 US7494497B2 (en) | 2003-01-02 | 2003-01-02 | Medical devices |
PCT/US2003/041852 WO2004060460A2 (en) | 2003-01-02 | 2003-12-30 | Medical devices with cutting element. |
Publications (3)
Publication Number | Publication Date |
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JP2006512952A JP2006512952A (ja) | 2006-04-20 |
JP2006512952A5 JP2006512952A5 (ja) | 2010-08-12 |
JP4566752B2 true JP4566752B2 (ja) | 2010-10-20 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2004564960A Expired - Fee Related JP4566752B2 (ja) | 2003-01-02 | 2003-12-30 | 医療器具 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7494497B2 (ja) |
EP (3) | EP1935376B1 (ja) |
JP (1) | JP4566752B2 (ja) |
AT (2) | ATE457688T1 (ja) |
AU (1) | AU2003302771A1 (ja) |
CA (1) | CA2512172A1 (ja) |
DE (2) | DE60335152D1 (ja) |
WO (1) | WO2004060460A2 (ja) |
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-
2003
- 2003-01-02 US US10/335,604 patent/US7494497B2/en not_active Expired - Fee Related
- 2003-12-30 CA CA002512172A patent/CA2512172A1/en not_active Abandoned
- 2003-12-30 DE DE60335152T patent/DE60335152D1/de not_active Expired - Lifetime
- 2003-12-30 AT AT03812090T patent/ATE457688T1/de not_active IP Right Cessation
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- 2003-12-30 EP EP08154259A patent/EP1935376B1/en not_active Expired - Lifetime
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- 2003-12-30 JP JP2004564960A patent/JP4566752B2/ja not_active Expired - Fee Related
- 2003-12-30 AU AU2003302771A patent/AU2003302771A1/en not_active Abandoned
- 2003-12-30 EP EP08154260A patent/EP1941839A3/en not_active Withdrawn
- 2003-12-30 EP EP03812090A patent/EP1587427B1/en not_active Expired - Lifetime
- 2003-12-30 WO PCT/US2003/041852 patent/WO2004060460A2/en active Application Filing
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WO2004060460A2 (en) | 2004-07-22 |
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EP1587427A2 (en) | 2005-10-26 |
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AU2003302771A8 (en) | 2004-07-29 |
EP1935376B1 (en) | 2010-11-24 |
EP1587427B1 (en) | 2010-02-17 |
ATE489056T1 (de) | 2010-12-15 |
EP1941839A3 (en) | 2008-07-23 |
EP1941839A2 (en) | 2008-07-09 |
US7494497B2 (en) | 2009-02-24 |
CA2512172A1 (en) | 2004-07-22 |
AU2003302771A1 (en) | 2004-07-29 |
ATE457688T1 (de) | 2010-03-15 |
DE60331363D1 (de) | 2010-04-01 |
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