JP7016921B2 - 塞栓防止医療機器 - Google Patents
塞栓防止医療機器 Download PDFInfo
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- JP7016921B2 JP7016921B2 JP2020126122A JP2020126122A JP7016921B2 JP 7016921 B2 JP7016921 B2 JP 7016921B2 JP 2020126122 A JP2020126122 A JP 2020126122A JP 2020126122 A JP2020126122 A JP 2020126122A JP 7016921 B2 JP7016921 B2 JP 7016921B2
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- 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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/01—Filters implantable into blood vessels
- A61F2/011—Instruments for their placement or removal
-
- 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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/01—Filters implantable into blood vessels
-
- 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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
-
- 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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
-
- 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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/01—Filters implantable into blood vessels
- A61F2002/016—Filters implantable into blood vessels made from wire-like elements
-
- 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
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0008—Rounded shapes, e.g. with rounded corners elliptical or oval
-
- 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
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0069—Three-dimensional shapes cylindrical
-
- 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
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0093—Umbrella-shaped, e.g. mushroom-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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0036—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in thickness
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
- A61F2250/0059—Additional features; Implant or prostheses properties not otherwise provided for temporary
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Description
図3に本発明の第1の実施形態を示す。カテーテルシャフト42は、左腕の動脈から挿入され、左鎖骨下動脈26を通って大動脈弓に入る。拡張されたフィルタ膜36が腕頭動脈16および左総頸動脈24の弁口を覆う。図3に見られるように、フィルタ材料は弁口内に浸漬し、従って血管壁と柔らく非外傷的に接触する。フィルタ材料はまた、血管壁との密接接触により弁口を良好に密封する。血管壁への密着度を向上させるべく、貫通孔が全く無い周縁バンドをフィルタ膜に設けることも考えられる。周縁または周辺バンドは好適には、フレームループの近傍に設けられる。好適な実施形態において、周縁バンドは、貫通孔が無く、血管壁と密接接触している。
Claims (11)
- シャフトを有するカテーテルおよび当該シャフトの遠位端部と、
フィルタ膜およびフレームを有する拡張可能な塞栓症防止装置であって、前記フレームが、フレームループおよび当該フレームループに接続点で接続された遠位端部を有する細長フレームシャフトを含む、塞栓症防止装置と、
を含む大動脈弓における塞栓症防止用の医療機器であって、
前記フレームループが拡張状態において前記フィルタ膜全体に広がり、
前記フレームループは、前記フィルタ膜全体を担持しており、
前記フレームシャフトが、前記カテーテルのシャフトの内部を通り、
前記医療機器が保護状態を有し、当該保護状態において、
カテーテルの前記遠位端部および/または前記フレームおよび/または前記フレームシャフトの遠位端部が屈曲され、前記フレームループおよび前記フィルタ膜が拡張され、前記フレームシャフトが当該屈曲された遠位端部の長手方向に伸長し、前記拡張されたフレームループ全体が前記フレームシャフトから見て前記接続点よりも遠い側に配置されており、
前記フィルタ膜が、異なる厚さを有する少なくとも2個の異なる部分を含み、
前記フィルタ膜は、前記フレームループの拡張状態において、少なくとも腕頭動脈および/または少なくとも鎖骨下動脈を覆うことができる直径を有し、
前記フィルタ膜が、前記フレームループの拡張状態において、前記フィルタ膜の周辺部に比べて中央部が薄くなるように構成されている、
ことを特徴とする医療機器。 - 前記フィルタ膜が、前記フレームの拡張状態において凹形状、好適には予め成形された凹形状をなす、請求項1に記載の医療機器。
- 前記フレームが凹形状、好適には予め成形された凹形状をなすことを特徴とする、請求項1または2に記載の医療機器。
- 展開可能フィルタ装置が設けられ、展開状態においてカテーテルの前記シャフトまたは前記遠位端部の周囲を円周方向に伸長する、請求項1または3に記載の医療機器。
- 保護状態において、展開可能フィルタが自身の展開状態において腕頭動脈および/または左鎖骨下動脈を確実に覆うことができる直径を有している、請求項4に記載の医療機器。
- 保護状態において、拡張可能な塞栓症防止装置が、カテーテルの遠位端部一方の側で側枝血管の弁口領域を覆うべく配置されていることを特徴とする、請求項1~5のいずれか1項に記載の医療機器。
- 拡張された塞栓症防止装置が、搭載状態において、側枝血管の弁口領域を覆うことで、フィルタ膜が前記弁口領域に部分的に突出して入り込むことを特徴とする、請求項5に記載の医療機器。
- 前記フィルタ膜が多孔膜である、請求項1~7のいずれか1項に記載の医療機器。
- 前記フィルタ膜がポリマー材料製である、請求項1~8のいずれか1項に記載の医療機器。
- カテーテルおよび/またはフレームシャフトの屈曲可能な遠位端部の長さが10mm~80mm、好適には20mm~60mm、最も好適には40mm~60mmであることを特徴とする、請求項1~9のいずれか1項に記載の医療機器。
- フィルタ膜がシロキサン製であることを特徴とする、請求項1~9のいずれか1項に記載の医療機器。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13188522.0 | 2013-10-14 | ||
EP20130188522 EP2859864A1 (en) | 2013-10-14 | 2013-10-14 | Medical device for embolic protection |
Related Parent Applications (1)
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JP2018183804A Division JP2019022707A (ja) | 2013-10-14 | 2018-09-28 | 塞栓防止医療機器 |
Publications (2)
Publication Number | Publication Date |
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JP2020185412A JP2020185412A (ja) | 2020-11-19 |
JP7016921B2 true JP7016921B2 (ja) | 2022-02-07 |
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JP2016524049A Active JP6461941B2 (ja) | 2013-10-14 | 2014-10-14 | 塞栓防止医療機器 |
JP2018183804A Pending JP2019022707A (ja) | 2013-10-14 | 2018-09-28 | 塞栓防止医療機器 |
JP2020126122A Active JP7016921B2 (ja) | 2013-10-14 | 2020-07-27 | 塞栓防止医療機器 |
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JP2016524049A Active JP6461941B2 (ja) | 2013-10-14 | 2014-10-14 | 塞栓防止医療機器 |
JP2018183804A Pending JP2019022707A (ja) | 2013-10-14 | 2018-09-28 | 塞栓防止医療機器 |
Country Status (5)
Country | Link |
---|---|
US (2) | US10675139B2 (ja) |
EP (1) | EP2859864A1 (ja) |
JP (3) | JP6461941B2 (ja) |
IL (1) | IL245049B (ja) |
WO (1) | WO2015055605A1 (ja) |
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EP2859864A1 (en) | 2015-04-15 |
JP2020185412A (ja) | 2020-11-19 |
US10675139B2 (en) | 2020-06-09 |
US11813155B2 (en) | 2023-11-14 |
JP2019022707A (ja) | 2019-02-14 |
IL245049B (en) | 2021-12-01 |
JP6461941B2 (ja) | 2019-01-30 |
US20200261204A1 (en) | 2020-08-20 |
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JP2016533228A (ja) | 2016-10-27 |
IL245049A0 (en) | 2016-05-31 |
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