JP2016538947A - テーパー形移植可能装置及びそのような装置の製造方法 - Google Patents
テーパー形移植可能装置及びそのような装置の製造方法 Download PDFInfo
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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
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
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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
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
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- A—HUMAN NECESSITIES
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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
- 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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/02—Bending or folding
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- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/005—Shaping by stretching, e.g. drawing through a die; Apparatus therefor characterised by the choice of materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/22—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/30—Drawing through a die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
- B29C57/02—Belling or enlarging, e.g. combined with forming a groove
- B29C57/04—Belling or enlarging, e.g. combined with forming a groove using mechanical means
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- A—HUMAN NECESSITIES
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- 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
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
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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
- A61F2240/00—Manufacturing or designing of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
-
- 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
- A61F2240/00—Manufacturing or designing of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2240/001—Designing or manufacturing processes
-
- 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
- A61F2250/0039—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 diameter
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29L2031/7532—Artificial members, protheses
- B29L2031/7534—Cardiovascular protheses
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Gastroenterology & Hepatology (AREA)
- Prostheses (AREA)
Abstract
Description
RR%=(lt−lr)×100%
(lr)
ltは1%の最大引張力の下で軸方向に延伸したときのテーパー長さ部分108の長さであり、lrは引張力を解放した5秒後のテーパー部分の長さである。すばやい回復特性を有するテーパー長さ部分108は、例えば、改善された曲げ特徴、並びに曲げにおけるキンク、圧縮、及び/又は圧壊に対する改善された耐性を示すことができる。
Claims (17)
- テーパー形移植可能物品の製造方法であって:
第一の長いテーパー長さセグメントを有する第一のマンドレルを用いて、ePTFE管状部材に、第一の長い長さを有するテーパー部分を形成することと;
前記第一のマンドレルから前記ePTFE管状部材を除去することと;
前記ePTFE管状部材の前記第一の長い長さを有するテーパー部分を、第二の短いテーパー長さセグメントを有する第二のマンドレル上で、第二の短い長さを有するテーパー部分へと長手方向に圧縮することと;
前記第二のマンドレルから前記ePTFE管状部材を除去することと
を含む、方法。 - 圧縮比は、前記第一の長い長さを有するテーパー部分に対する前記第二の短い長さを有するテーパー部分の比率を含み、マンドレル比率は、前記第一の長いテーパー長さセグメントの長さに対する前記第二の短いテーパー長さセグメントの長さの比率を含み、前記マンドレル比率が前記圧縮比の33%以内である、請求項1に記載の方法。
- 前記マンドレル比率が前記圧縮比の10%以内である、請求項2に記載の方法。
- 前記圧縮比と前記マンドレル比率とが実質的に等しい、請求項2に記載の方法。
- 前記ePTFE管状部材の前記第一の長い長さを有するテーパー部分を形成する工程は、押出しePTFE管を前記第一のマンドレル上で引くことを含む、請求項1に記載の方法。
- 前記ePTFE管状部材は多数のフィブリルを含み、前記フィブリルの過半数が曲がっている、請求項1に記載の方法。
- 前記第一の長い長さを有するテーパー部分及び前記第二の短い長さを有するテーパー部分が、直径の等しい横方向断面形状を含む、請求項1に記載の方法。
- 前記第二の短い長さを有するテーパー部分が均一の円錐台形状を含む、請求項1に記載の方法。
- 前記第二の短い長さを有するテーパー部分が不均一な形状を含む、請求項1に記載の方法。
- 前記ePTFE管状部材のテーパー部分を前記第二のマンドレル上で長手方向に圧縮した後に、前記ePTFE管状部材を加熱する工程を更に含む、請求項1に記載の方法。
- 前記第一の長い長さを有するテーパー部分を前記第二のマンドレル上で長手方向に圧縮する工程は、前記第二の短いテーパー長さセグメントの形状に相補的な形状を有する雌型ダイを用いて前記ePTFE管状部材を圧縮することを更に含む、請求項1に記載の方法。
- 前記ePTFE管状部材が前記第一の長い長さにあるときに、前記ePTFE管状部材の反管腔側表面の少なくとも一部をフィルムで包む工程を更に含む、請求項1に記載の方法。
- 第一の直径を有する第一の長さ部分と、第二の直径を有する第二の長さ部分とを含む、ePTFE管と;
前記第一の長さ部分と前記第二の長さ部分との間のテーパー長さ部分であって、多数の実質的に曲がったフィブリルを含む、テーパー長さ部分と
を含む、移植可能物品。 - 前記ePTFE管が多数の曲がったフィブリルを含む、請求項13に記載の移植可能物品。
- 前記テーパー長さ部分が不均一な形状を含む、請求項13に記載の移植可能物品。
- 前記テーパー長さ部分が均一な円錐台形状を含む、請求項13に記載の移植可能物品。
- 小径の第一の末端と大径の第二の末端とを含む、ePTFE管と;
前記第一の末端と前記第二の末端との間のテーパー長さ部分であって、多数の実質的に曲がったフィブリルを含む、テーパー長さ部分と
を含む、移植可能物品。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361912339P | 2013-12-05 | 2013-12-05 | |
US61/912,339 | 2013-12-05 | ||
US14/557,927 US9814560B2 (en) | 2013-12-05 | 2014-12-02 | Tapered implantable device and methods for making such devices |
US14/557,927 | 2014-12-02 | ||
PCT/US2014/068411 WO2015084987A1 (en) | 2013-12-05 | 2014-12-03 | Tapered implantable device and methods for making such devices |
Publications (2)
Publication Number | Publication Date |
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JP2016538947A true JP2016538947A (ja) | 2016-12-15 |
JP6530400B2 JP6530400B2 (ja) | 2019-06-12 |
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JP2016536523A Active JP6530400B2 (ja) | 2013-12-05 | 2014-12-03 | テーパー形移植可能装置及びそのような装置の製造方法 |
Country Status (8)
Country | Link |
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US (3) | US9814560B2 (ja) |
EP (2) | EP3498453B1 (ja) |
JP (1) | JP6530400B2 (ja) |
CN (2) | CN108992203A (ja) |
AU (1) | AU2014360532B2 (ja) |
CA (1) | CA2932076C (ja) |
ES (2) | ES2840450T3 (ja) |
WO (1) | WO2015084987A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019211051A (ja) * | 2018-06-08 | 2019-12-12 | 日星電気株式会社 | 管状部材 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US9814560B2 (en) | 2013-12-05 | 2017-11-14 | W. L. Gore & Associates, Inc. | Tapered implantable device and methods for making such devices |
AU2016270380B2 (en) | 2015-06-05 | 2019-04-04 | W. L. Gore & Associates, Inc. | A low bleed implantable prosthesis with a taper |
WO2017084725A1 (en) * | 2015-11-20 | 2017-05-26 | Dokter Philippe De Vleeschauwer Bv Bvba | Vascular graft for interposition at a resection of vascular structures |
WO2017184153A1 (en) * | 2016-04-21 | 2017-10-26 | W. L. Gore & Associates, Inc. | Diametrically adjustable endoprostheses and associated systems and methods |
GB201621251D0 (en) * | 2016-12-14 | 2017-01-25 | Smiths Medical Int Ltd | Medico-surgical tubes and methods of assembly |
WO2018195442A1 (en) * | 2017-04-21 | 2018-10-25 | Los Angeles Biomedical Research Institute At Harbor-Ucla Medical Center | Stent grafts, mandrels, and methods of using same |
WO2018209259A1 (en) * | 2017-05-11 | 2018-11-15 | Northwestern University | Intravascular retrievable cell delivery system |
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ES2724580T3 (es) | 2019-09-12 |
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