JP2000510034A - プロテーゼ心臓弁リーフレットの選択方法および装置 - Google Patents
プロテーゼ心臓弁リーフレットの選択方法および装置Info
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- JP2000510034A JP2000510034A JP10541926A JP54192698A JP2000510034A JP 2000510034 A JP2000510034 A JP 2000510034A JP 10541926 A JP10541926 A JP 10541926A JP 54192698 A JP54192698 A JP 54192698A JP 2000510034 A JP2000510034 A JP 2000510034A
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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
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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
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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
- A61F2/2415—Manufacturing methods
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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
- A61F2/2472—Devices for testing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S623/00—Prosthesis, i.e. artificial body members, parts thereof, or aids and accessories therefor
- Y10S623/90—Stent for heart valve
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S623/00—Prosthesis, i.e. artificial body members, parts thereof, or aids and accessories therefor
- Y10S623/909—Method or apparatus for assembling prosthetic
- Y10S623/91—Heart
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S623/00—Prosthesis, i.e. artificial body members, parts thereof, or aids and accessories therefor
- Y10S623/912—Method or apparatus for measuring or testing prosthetic
- Y10S623/913—Heart
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Vascular Medicine (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Pulmonology (AREA)
- Biophysics (AREA)
- Manufacturing & Machinery (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.移植可能な心臓弁のためのリーフレットを選択する方法であって、 同じようなサイズのリーフレットの収集物を提供するステップと、 リーフレットの各々に負荷を付与するステップと、 リーフレットの各々における該負荷の付与によるひずみ応答を観測するステッ プと、 リーフレットを、それぞれのひずみ応答に応じて分類するステップと、 を包含する方法。 2.前記収集物を提供するステップが、自然組織リーフレットの収集物を提供す る工程を包含する、請求項1に記載の方法。 3.試験を行う前に前記リーフレットを化学的に固定するステップをさらに包含 する、請求項2に記載の方法。 4.前記自然組織リーフレットの収集物を提供するステップが、ウシ心膜リーフ レットの収集物を提供する工程を包含する、請求項2に記載の方法。 5.前記リーフレットの収集物を提供するステップが、基質(matrix)および自 然組織の内方成長を持つリーフレットの収集物を提供する工程を含む、請求項1 に記載の方法。 6.前記リーフレットの収集物を提供するステップが、上に細胞成長被覆が形成 される基質(substrate)を有するリーフレットの収集物を提供する工程を含む 、請求項1に記載の方法。 7.前記リーフレットの収集物を提供するステップが、押出されたコラーゲンリ ーフレットの収集物を提供する工程を含む、請求項1に記載の方法。 8.前記負荷を付与するステップが、少なくとも幾つかの前記リーフレットにお いて、該リーフレットの材料の応力/ひずみ曲線のおおむね直線で高い弾性率の 領域内で、平均応力を生じさせるのに十分な負荷を付与する工程を包含する、請 求項1に記載の方法。 9.前記ひずみ応答を観測する前に、所定の回数だけ負荷を付与するステップを さらに包含する、請求項1に記載の方法。 10.前記所定の回数が少なくとも3である、請求項9に記載の方法。 11.前記リーフレットに対して内因性負荷試験を行うステップと、 該内因性負荷試験の結果に基づいて該リーフレットを分類するステップと、 をさらに包含する、請求項1に記載の方法。 12.前記リーフレットを分類するステップが、所定の範囲内のひずみ応答を持 つリーフレットのサブグループを形成する工程を包含する、請求項1に記載の方 法。 13.前記所定の範囲内のひずみ応答を持つリーフレットのサブグループを形成 するステップが、各リーフレットに負荷を付与することによって生じる各リーフ レットのたわみを測定する工程と、各々が、他のリーフレットの約0.030インチ 以内のたわみを持つリーフレットのサブグループを形成する工程を包含する、請 求項12に記載の方法。 14.請求項1に記載の方法によって選択されたリーフレットを用いて製造され たバイオプロテーゼ心臓弁。 15.前記選択されたリーフレットの数が3である、請求項14に記載のバイオ プロテーゼ心臓弁。 16.移植可能な心臓弁において使用するためのリーフレットを試験する方法で あって、 該弁中の縫合される部分が静止状態に保持されるように該リーフレットをフレ ーム中に取り付けるステップと、 該弁において平均負荷が付与される地点をシミュレートするように調節された 位置で、該リーフレットに負荷を付与するステップと、 該リーフレットにおいて生じたひずみを感知するステップと、 を包含する方法。 17.前記リーフレットが自然組織から作られ、試験を行う前に該リーフレット を化学的に固定するステップをさらに含む、請求項16に記載の方法。 18.前記リーフレットが、先端と、該先端とおおむね反対の接合端部とを規定 し、前記取り付けステップが、少なくとも該リーフレットの該先端を静止状態に 保持する工程を包含する、請求項16に記載の方法。 19.少なくとも前記リーフレットの前記先端の前記端部を収容するための凹所 と、該凹所を囲むキャビティとを含むフレーミングアセンブリに該リーフレット を配置するステップをさらに包含する、請求項18に記載の方法。 20.前記負荷を付与するステップが、前記キャビティ上の前記リーフレットの 上面に機械的ディフレクタを適用する工程を包含する、請求項19に記載の方法 。 21.前記フレーミングアセンブリが、上部部材および下部部材を含み、前記凹 所を有する該下部部材と、該上部部材とは、該凹所上で合わさるように形成され 、該上部部材および該下部部材の間に延長し、該上部部材および該下部部材によ る動作によって支持されるニードルを用いて前記リーフレットの端部に穴を開け る ステップをさらに包含する、請求項19に記載の方法。 22.前記感知されたひずみを記録するステップをさらに包含する、請求項16 に記載の方法。 23.前記感知されたひずみを記録する前に、少なくとも2回負荷を付与するこ とをさらに包含する、請求項22に記載の方法。 24.心臓弁リーフレットを試験するための装置であって、 試験されるリーフレットを収容するための凹所を持つホルダーと、該ホルダー と協同し、それによって、該リーフレットの先端を実質的に静止状態に保持する フレームとを含むリーフレットフレーミングアセンブリと、 その上で該フレーミングアセンブリを位置づけるための指示構造を有する基盤 と、 該基盤に対して指示され、該フレーミングアセンブリ上で該リーフレットに接 触する動作のために取り付けられたディフレクタを有するたわみアセンブリと、 を備えた、装置。 25.前記凹所が尖形状であり、前記ホルダーが、その上に前記リーフレットが 懸架される該凹所によって実質的に囲まれるキャビティを備える、請求項24に 記載の装置。 26.前記キャビティの周囲の前記リーフレットの個々の地点を位置的に静止状 態に保持するように調節された構造をさらに備えた、請求項25に記載の装置。 27.前記フレーミングアセンブリおよび前記たわみアセンブリが、前記ディフ レクタが前記キャビティ上で前記リーフレットに接触するように、前記基盤上で 指示される、請求項25に記載の装置。 28.前記ディフレクタが、分配した領域上で前記リーフレットに接触し、キャ ビティが、該領域の下の前記ホルダーに形成される、請求項24に記載の装置。 29.前記ディフレクタが、滑らかな球状接触面を含む、請求項28に記載の装 置。 30.前記ディフレクタが、生体適合性プラスチックから成る、請求項29に記 載の装置。 31.前記フレームが、先細の端部を下向きにした複数のニードルを含み、前記 凹所は、該ニードルのための受容穴を含み、前記リーフレットの前記先端が、該 ニードルによって規定される個々の地点において静止状態に保持される、請求項 24に記載の装置。 32.前記ニードルが、前記フレームとは別々に形成され、その内部で位置的に 調節可能である、請求項31に記載の装置。 33.前記フレーム中で前記ニードルを位置的に調節するための較正部材をさら に含み、該較正部材は、該フレームが構造的に合わさる基盤と、該較正部材が該 フレームと合わさる際に該ニードルの下に位置する平面とを備える、請求項32 に記載の装置。 34.前記凹所の周囲でおおむね均等に間隔をあけた5本と9本との間のニード ルが存在する、請求項31に記載の装置。 35.リーフレットの材料の応力/ひずみ曲線のおおむね直線で高い弾性率の領 域内で該リーフレットに応力を加えるのに十分な負荷を各個別の該リーフレット に付与することによって生じた互いの所定の範囲内の観測されたひずみ応答を持 つように選択されたリーフレットを用いたマルチリーフレットバイオプロテーゼ 心臓弁。 36.前記リーフレットが、グルタルアルデヒド固定化され、該リーフレットに 、300kPaと600kPaとの間の応力を加えるのに十分な負荷を各該リー フレットに個別に付与することによって生じた互いの所定の範囲内の観測された ひずみ応答を持つように選択される、請求項35に記載のマルチリーフレットバ イオプロテーゼ心臓弁。 37.前記リーフレットのひずみ応答が、該リーフレットの各々に負荷を付与す ることによって生じた該各リーフレットのたわみの測定から観測され、該リーフ レットは、互いの約0.030インチ以内のたわみを持つように選択される、請 求項35に記載のマルチリーフレットバイオプロテーゼ心臓弁。 38.前記弁中に3つのリーフレットが存在する、請求項35に記載のマルチリ ーフレットバイオプロテーゼ心臓弁。 39.前記リーフレットが、互いの所定の範囲内の観測された内因性負荷試験応 答を持つようにさらに選択される、請求項35に記載のマルチリーフレットバイ オプロテーゼ心臓弁。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/833,176 | 1997-04-03 | ||
| US08/833,176 US5961549A (en) | 1997-04-03 | 1997-04-03 | Multi-leaflet bioprosthetic heart valve |
| PCT/US1998/006333 WO1998043557A1 (en) | 1997-04-03 | 1998-04-02 | Prosthetic heart valve leaflet selection method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000510034A true JP2000510034A (ja) | 2000-08-08 |
| JP3527746B2 JP3527746B2 (ja) | 2004-05-17 |
Family
ID=25263662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54192698A Expired - Lifetime JP3527746B2 (ja) | 1997-04-03 | 1998-04-02 | プロテーゼ心臓弁リーフレットの選択方法および装置 |
Country Status (8)
| Country | Link |
|---|---|
| US (5) | US5961549A (ja) |
| EP (3) | EP1523961B2 (ja) |
| JP (1) | JP3527746B2 (ja) |
| AT (1) | ATE287683T1 (ja) |
| AU (1) | AU727254B2 (ja) |
| CA (1) | CA2285233C (ja) |
| DE (1) | DE69828778T2 (ja) |
| WO (1) | WO1998043557A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2023544825A (ja) * | 2020-10-07 | 2023-10-25 | ザ チルドレンズ メディカル センター コーポレーション | エンジニアリング設計に基づいた弁再構築のワークフロー |
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- 1998-04-02 EP EP04078392.0A patent/EP1523961B2/en not_active Expired - Lifetime
- 1998-04-02 AT AT98913330T patent/ATE287683T1/de not_active IP Right Cessation
- 1998-04-02 WO PCT/US1998/006333 patent/WO1998043557A1/en not_active Ceased
- 1998-04-02 EP EP98913330A patent/EP0971650B1/en not_active Expired - Lifetime
- 1998-04-02 DE DE69828778T patent/DE69828778T2/de not_active Expired - Lifetime
- 1998-04-02 AU AU67907/98A patent/AU727254B2/en not_active Expired
- 1998-04-02 JP JP54192698A patent/JP3527746B2/ja not_active Expired - Lifetime
- 1998-04-02 EP EP03077638A patent/EP1380272A3/en not_active Withdrawn
- 1998-12-09 US US09/207,783 patent/US6245105B1/en not_active Expired - Lifetime
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2000
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2002
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023544825A (ja) * | 2020-10-07 | 2023-10-25 | ザ チルドレンズ メディカル センター コーポレーション | エンジニアリング設計に基づいた弁再構築のワークフロー |
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|---|---|
| EP0971650A1 (en) | 2000-01-19 |
| WO1998043557A1 (en) | 1998-10-08 |
| JP3527746B2 (ja) | 2004-05-17 |
| US6837902B2 (en) | 2005-01-04 |
| CA2285233A1 (en) | 1998-10-08 |
| EP1523961B1 (en) | 2013-07-31 |
| DE69828778T2 (de) | 2005-07-14 |
| EP0971650B1 (en) | 2005-01-26 |
| US20040082991A1 (en) | 2004-04-29 |
| ATE287683T1 (de) | 2005-02-15 |
| US20030074059A1 (en) | 2003-04-17 |
| AU6790798A (en) | 1998-10-22 |
| AU727254B2 (en) | 2000-12-07 |
| EP1523961A1 (en) | 2005-04-20 |
| EP1380272A3 (en) | 2005-04-20 |
| US6245105B1 (en) | 2001-06-12 |
| CA2285233C (en) | 2007-06-26 |
| EP1380272A2 (en) | 2004-01-14 |
| DE69828778D1 (de) | 2005-03-03 |
| US5961549A (en) | 1999-10-05 |
| US6413275B1 (en) | 2002-07-02 |
| EP1523961B2 (en) | 2016-04-27 |
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