JP7202374B2 - 弁付き導管 - Google Patents
弁付き導管 Download PDFInfo
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- JP7202374B2 JP7202374B2 JP2020524200A JP2020524200A JP7202374B2 JP 7202374 B2 JP7202374 B2 JP 7202374B2 JP 2020524200 A JP2020524200 A JP 2020524200A JP 2020524200 A JP2020524200 A JP 2020524200A JP 7202374 B2 JP7202374 B2 JP 7202374B2
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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
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
- A61F2/2418—Scaffolds therefor, e.g. support 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
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
- A61F2/2415—Manufacturing methods
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2475—Venous valves
-
- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/56—Porous materials, e.g. foams or sponges
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2409—Support rings therefor, e.g. for connecting valves to tissue
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2427—Devices for manipulating or deploying heart valves during implantation
-
- 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
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0008—Fixation appliances for connecting prostheses to the body
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/005—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0058—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements soldered or brazed or welded
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0075—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable
-
- 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
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Public Health (AREA)
- Transplantation (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Epidemiology (AREA)
- Medicinal Chemistry (AREA)
- Dermatology (AREA)
- Dispersion Chemistry (AREA)
- Prostheses (AREA)
Description
本出願は、2017年10月31日に出願された米国仮出願第62/579752号の利益を主張して2018年9月12日に出願された米国特許出願第16/129673号明細書に対する優先権の利益を主張するものであり、上記特許出願の内容全体を参照により本明細書に援用する。
2015年10月12日に出願されたW.L.Gore&Associates,Inc.(Armstrong等)の米国特許出願公開第2016/0100939号明細書「Valved Conduit」による弁付き導管(「対照弁」)は縫合により装着された小葉を含み、導管の弁領域に洞がある。本開示の実施形態に基づいて作成されるなどによるもう1つの弁付き導管(「試験弁」)は、非機械的に装着された小葉を含み、内面は径が一定であり、肉眼では妨害物が全く見えず、導管の弁領域には洞がない。図8は、血液への曝露を含む模擬動作条件で、このような対照弁と試験弁の性能を示している。図8に示されるように、対照弁は、試験弁と比較して比較的大きな血栓形成反応を呈している。結果に示されるように、対照弁は、試験弁と比較して著しく大きな血栓形成反応を呈した。このような試験は、本開示の実施形態によって血栓形成の相対的減少が達成されることを示している。
非制限的例として、このような弁付き導管の血栓形成反応を評価する適切な試験方法は、弁付き導管のサンプルを所望時間(例えば、1時間超)動作させるため、実験室で脈動流のある生体外閉鎖血液循環系(例えば、ヘパリン添加ブタ血液)を利用することを含む。弁付き導管のサンプルは、その後、閉鎖血液循環系から取り除かれ、血栓形成の評価及び検証のため切開され得る。
Claims (19)
- 内面と外面とを有する導管と、
該導管内の血栓形成を軽減するように該導管の該内面に配置される内側部分及び該導管の該外面にフィルム層によって非機械的に装着された外側部分を有する少なくとも1つの小葉と、
前記導管及び前記フィルム層の周囲に配置された可撓性フィルムと
を含んでなる弁付き導管。 - 前記少なくとも1つの小葉の前記外側部分が、接着剤、熱接合又は化学的接合によって前記導管の前記外面に付着されている、請求項1に記載の弁付き導管。
- 前記導管は洞を含まない、請求項1又は2に記載の弁付き導管。
- 前記導管は機械的結合を含まない、請求項1~3の何れか一項に記載の弁付き導管。
- 前記少なくとも1つの小葉の前記外側部分が前記導管の前記外面に装着されており、該装着は無縫合である、請求項1~4の何れか一項に記載の弁付き導管。
- 前記少なくとも1つの小葉の前記外側部分が、前記導管の前記外面に接着フィルムの層によって付着されている、請求項1~5の何れか一項に記載の弁付き導管。
- 前記可撓性フィルムは延伸ポリテトラフルオロエチレン(ePTFE)を含み、かつ、前記フィルム層はフッ化エチレンプロピレン(FEP)を含む、請求項1に記載の弁付き導管。
- 前記可撓性フィルムによって前記導管に結合された支持枠を更に備える、請求項1に記載の弁付き導管。
- 前記支持枠はポリエーテルエーテルケトン(PEEK)で形成されている、請求項8に記載の弁付き導管。
- 前記導管の前記外面に、前記少なくとも1つの小葉に隣接して配置された少なくとも1つの放射線不透過性マーカーを更に備える、請求項1~9の何れか一項に記載の弁付き導管。
- 前記導管の前記内面は、径が一定であり、かつ、巨視的な妨害物を含まない、請求項1~10の何れか一項に記載の弁付き導管。
- 前記少なくとも1つの小葉は前記導管内の長さ方向に沿った長手方向位置に配置されており、かつ、前記導管は、前記少なくとも1つの小葉が配置された該長手方向位置と、その隣接する近位部及び遠位部とを通して、径が一定である、請求項1~11の何れか一項に記載の弁付き導管。
- 内面、外面、近位部及び遠位部を有する導管と、
該導管の該内面と該外面との間に開口を有する小葉装着部と、
該導管内での血栓形成を軽減するため、該導管の該内面又は該外面を機械的に改変することなく該導管の該外面にフィルム層によって装着された装着区域を有する少なくとも1つの小葉と、
前記導管及び前記フィルム層の周囲に配置された可撓性フィルムと
を含んでなる弁付き導管。 - 前記少なくとも1つの小葉は3つの小葉を有し、かつ、該3つの小葉は前記導管の内部において間隙によって互いに分離されている、請求項13に記載の弁付き導管。
- 前記導管は、前記導管の前記内面において前記3つの小葉の間に前記間隙を形成するため、前記小葉の各々の前記装着区域で前記小葉を分離する交連間隙を含む、請求項14に記載の弁付き導管。
- 前記装着区域は、前記導管の前記外面に接着剤、熱接合又は化学的接合によって装着される、請求項13~15の何れか一項に記載の弁付き導管。
- 前記装着区域は第1の部分と第2の部分とを含み、該第1の部分は前記導管の前記外面の前記近位部に装着され、該第2の部分は前記導管の前記外面の前記遠位部に装着されている、請求項13~16の何れか一項に記載の弁付き導管。
- 前記小葉装着部は前記導管の一部であり、前記小葉装着部は前記導管の残りの部分よりも密度が高い、請求項13に記載の弁付き導管。
- 前記導管内の血流の方向を示すために、前記導管の前記外面上に方向表示を更に備える、請求項13に記載の弁付き導管。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2022206828A JP7502406B2 (ja) | 2017-10-31 | 2022-12-23 | 弁付き導管 |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762579752P | 2017-10-31 | 2017-10-31 | |
US62/579,752 | 2017-10-31 | ||
US16/129,673 | 2018-09-12 | ||
US16/129,673 US11039919B2 (en) | 2017-10-31 | 2018-09-12 | Valved conduit |
PCT/US2018/050771 WO2019089137A1 (en) | 2017-10-31 | 2018-09-12 | Valved conduit |
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JP2022206828A Division JP7502406B2 (ja) | 2017-10-31 | 2022-12-23 | 弁付き導管 |
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JP2021501016A JP2021501016A (ja) | 2021-01-14 |
JP7202374B2 true JP7202374B2 (ja) | 2023-01-11 |
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JP2020524200A Active JP7202374B2 (ja) | 2017-10-31 | 2018-09-12 | 弁付き導管 |
JP2022206828A Active JP7502406B2 (ja) | 2017-10-31 | 2022-12-23 | 弁付き導管 |
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Country Status (7)
Country | Link |
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US (2) | US11039919B2 (ja) |
EP (1) | EP3703617A1 (ja) |
JP (2) | JP7202374B2 (ja) |
CN (1) | CN111818875B (ja) |
AU (2) | AU2018362080B2 (ja) |
CA (2) | CA3078607C (ja) |
WO (1) | WO2019089137A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10507101B2 (en) * | 2014-10-13 | 2019-12-17 | W. L. Gore & Associates, Inc. | Valved conduit |
US11523940B2 (en) | 2017-03-17 | 2022-12-13 | W. L. Gore & Associates, Inc. | Delivery aids for glaucoma shunts |
US11039919B2 (en) * | 2017-10-31 | 2021-06-22 | W. L. Gore & Associates, Inc. | Valved conduit |
USD977642S1 (en) | 2018-10-29 | 2023-02-07 | W. L. Gore & Associates, Inc. | Pulmonary valve conduit |
US11678983B2 (en) | 2018-12-12 | 2023-06-20 | W. L. Gore & Associates, Inc. | Implantable component with socket |
WO2021216982A1 (en) * | 2020-04-23 | 2021-10-28 | W. L. Gore & Associates, Inc. | Valved conduit prostheses |
WO2022212509A1 (en) * | 2021-04-01 | 2022-10-06 | W.L. Gore & Associates, Inc. | Valved conduit in a conduit prostheses |
Citations (2)
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AU2018362080A1 (en) | 2020-06-11 |
CA3078607C (en) | 2022-07-26 |
CA3158944A1 (en) | 2019-05-09 |
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JP7502406B2 (ja) | 2024-06-18 |
US20190125529A1 (en) | 2019-05-02 |
CN111818875B (zh) | 2024-05-14 |
CA3078607A1 (en) | 2019-05-09 |
WO2019089137A1 (en) | 2019-05-09 |
US20210322158A1 (en) | 2021-10-21 |
CN111818875A (zh) | 2020-10-23 |
JP2023030127A (ja) | 2023-03-07 |
JP2021501016A (ja) | 2021-01-14 |
AU2018362080B2 (en) | 2021-09-30 |
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