JP2022009272A - 血管内インプラント - Google Patents
血管内インプラント Download PDFInfo
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- JP2022009272A JP2022009272A JP2021171433A JP2021171433A JP2022009272A JP 2022009272 A JP2022009272 A JP 2022009272A JP 2021171433 A JP2021171433 A JP 2021171433A JP 2021171433 A JP2021171433 A JP 2021171433A JP 2022009272 A JP2022009272 A JP 2022009272A
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- stent
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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
- 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
- A61F2250/0018—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 elasticity, stiffness or compressibility
-
- 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
- A61F2250/0029—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 bending or flexure capacity
-
- 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
- A61F2250/0014—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
- A61F2250/0037—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 height or in length
-
- 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
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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
- 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
- A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
- A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers
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Abstract
Description
本出願は、2016年3月31日に提出された仮出願番号62/316,128の仮ではない出願であり、仮出願番号62/316,128の優先権を主張する。仮出願番号62/316,128は、本明細書中でその全体が示されているかのように、この言及により全ての目的についてその全体が本明細書中に組み込まれる。
[技術分野]
さらに、本発明の実施形態として、以下を含む。
[1]
放射状に拡張可能な管状ステントであって、ここでは、
第1の圧壊抵抗力を有している第1のセクション及び第2の圧壊抵抗力を有している第2のセクションを含み、
第1の圧壊抵抗力は第2の圧壊抵抗力より弱く;
第1のセクションは、管を形成するように第2のセクションに対して接続されており、
第1のセクションと第2のセクションの接続は管の軸方向に伸びている、
放射状に拡張可能な管状ステント。
[2]
前記第1のセクションが前記第2のセクションよりも変形に対して小さい抵抗性を有している、[1]に記載の放射状に拡張可能な管状ステント。
[3]
ステントが、管を形成するように接続された2つの第1のセクションと2つの第2のセクションを含む、[1]に記載の放射状に拡張可能な管状ステント。
[4]
第2のセクションが第1のセクションにより互いに隔てられ、第1のセクションが第2のセクションにより互いに隔てられるように、前記第1のセクションが前記第2のセクションの間に存在している、[3]に記載の放射状に拡張可能な管状ステント。
[5]
前記第1のセクションが第1の軸に対して対称であり、前記第2のセクションが第2の軸に対して対称であり、前記第1の軸及び第2の軸が、管の軸方向に実質的に垂直な管の断面の軸である、[4]に記載の放射状に拡張可能な管状ステント。
[6]
前記第1の軸の長さが前記第2の軸の長さより長い、[5]に記載の放射状に拡張可能な管状ステント。
[7]
前記第1のセクションが第1の軸に対して両側に非対称であり、前記第2のセクションが第2の軸に対して両側に非対称であり、前記第1の軸及び第2の軸が、管の軸長に実質的に垂直な管の断面の軸である、[4]に記載の放射状に拡張可能な管状ステント。
[8]
前記第1の軸の長さが前記第2の軸の長さより長い、[0]に記載の放射状に拡張可能な管状ステント。
[9]
前記第1のセクションが少なくとも1つの弱いストラットを含み、各々の弱いストラットが部分的につぶれた状態及びつぶれた状態を有しており、各々の第2のセクションが複数の強いストラットを含み、各々の強いストラットが部分的につぶれた状態及びつぶれた状態を有しており、ここでは、各々の強いストラットをつぶすために必要な力は、各々の弱いストラットをつぶすための力より大きい、[1]に記載の放射状に拡張可能な管状ステント。
[10]
前記弱いストラットが拘束されていない状態にある場合は、前記少なくとも1つの弱いストラットは別の弱いストラットとは接触しない、[9]に記載の放射状に拡張可能な管状ステント。
[11]
前記弱いストラットが完全に圧縮されている状態にある場合は、前記少なくとも1つの弱いストラットは別の弱いストラットとは接触しない、[9]に記載の放射状に拡張可能な管状ステント。
[12]
弱いストラットより強いストラットを多く含む、[9]に記載の放射状に拡張可能な管状ステント。
[13]
前記第1のセクションが少なくとも1つの弱いストラットを含み、各々の弱いストラットが部分的につぶれた状態及びつぶれた状態を有しており、各々の第2のセクションが複数の強いストラットを含み、各々の強いストラットが部分的につぶれた状態及びつぶれた状態を有しており、ここでは、各々の弱いストラットの個々のストラット圧壊抵抗力が、各々の強いストラットの個々のストラット圧壊抵抗力より大きい、[1]に記載の放射状に拡張可能な管状ステント。
[14]
角度がついた遠位末端をさらに含む、[1]に記載の放射状に拡張可能な管状ステント。
[15]
遠位末端の角度が一般的には5°~45°の範囲内である、[1]に記載の放射状に拡張可能な管状ステント。
[16]
遠位末端の角度が一般的には10°~40°の範囲内である、[1]に記載の放射状に拡張可能な管状ステント。
[17]
遠位末端の角度が一般的には15°~35°の範囲内である、[1]に記載の放射状に拡張可能な管状ステント。
[18]
遠位末端の角度が一般的には20°~25°の範囲内である、[1]に記載の放射状に拡張可能な管状ステント。
[19]
遠位末端の角度が約25°である、請求項1に記載の放射状に拡張可能な管状ステント。
[20]
遠位末端の角度が患者の血管にフィットするために必要な角度である、[1]に記載の放射状に拡張可能な管状ステント。
[21]
放射状に拡張可能な管状ステントであって、ここでは、
少なくとも2つの軸方向に繰り返し存在する環が定義する複数の周方向に隣接するクローズドセル;及び
周方向に隣接するクローズドセルのそれぞれの1つずつを接続している複数の連結ストラットを含み、
前記複数の連結ストラットの数が複数の連結ストラットの数より少なく、その結果、隣接する環の中の複数の周方向に隣接するクローズドセルのより少ない数が連結ストラットにより接続される、
放射状に拡張可能な管状ステント。
[22]
前記連結ストラットが、それぞれの環の反対側に対になるように配置されている、[21]に記載の放射状に拡張可能な管状ステント。
[23]
前記連結ストラットの隣接するものが、それぞれの環の軸の周りの少なくとも1つの軸方向にインデックスされたセルの回転を伴うように配置され、それにより連結ストラットの螺旋の方向性が生じる、請求項21に記載の放射状に拡張可能な管状ステント。
[24]
前記連結ストラットが、ステントの長さに沿って予め決定された柔軟性を提供するように構成されている、[21]に記載の放射状に拡張可能な管状ステント。
[25]
前記柔軟性がステントの長さに沿って変化する、[24]に記載の放射状に拡張可能な管状ステント。
[26]
インプラントであって、ここでは、
その長さ方向に沿った様々な柔軟性を有している自己拡張型ステントを含み:
前記自己拡張型ステントは、
第1の複数の個々のステントのセル;及び
柔軟性がある複数のブリッジ部材を含み、
ここでは、前記ステントのセルのうちの少なくとも1つの前記第1のセルが、ステントのセルのうちの第2のセルに対して、少なくとも1つの柔軟性があるブリッジ部材により連結されており、それによって柔軟性がある構築物が形成されており;
ここでは、第2の複数の個々のステントのセルは、柔軟性があるブリッジ部材の1つによっては任意の他のステントのセルには連結されておらず、前記第2の複数の個々のステントのセルの数は前記第1の複数の個々のステントのセルの数より少ない、
インプラント。
[27]
ステントの全長が、個々のステントのセルの長さ及び柔軟性があるブリッジ部材の長さを含む、[26]に記載のインプラント。
Claims (26)
- 放射状に拡張可能な管状ステントであって、ここでは、
第1の圧壊抵抗力を有している第1のセクション及び第2の圧壊抵抗力を有している第2のセクションを含み、
前記第1の圧壊抵抗力は前記第2の圧壊抵抗力より弱く;
前記第1のセクションは、管を形成するように前記第2のセクションに対して接続されており、前記第1のセクションと前記第2のセクションの接続は前記管の管軸方向に伸びており、
前記ステントが管を形成するように接続された2つの第1のセクションと2つの第2のセクションを含み、
第2のセクションが第1のセクションにより互いに隔てられ、第1のセクションが第2のセクションにより互いに隔てられるように、前記第1のセクションが前記第2のセクションの間に存在しており、
前記ステントが楕円形の断面を有し、
第1の軸が前記楕円形の断面の短軸を含み、第2の軸が前記楕円形の断面の長軸を含み、
前記第2のセクションが前記第2の軸を横切るように構成されている、
放射状に拡張可能な管状ステント。 - 前記第1のセクションが前記第2のセクションよりも変形に対して小さい抵抗性を有している、請求項1に記載の放射状に拡張可能な管状ステント。
- 前記第1のセクションが前記第1の軸に対して対称であり、前記第2のセクションが前記第2の軸に対して対称であり、前記第1の軸及び前記第2の軸が、前記管の管軸方向に実質的に垂直な管の断面の軸である、請求項1又は2に記載の放射状に拡張可能な管状ステント。
- 前記第1のセクションが前記第1の軸に対して両側に非対称であり、前記第2のセクションが前記第2の軸に対して両側に非対称であり、前記第1の軸及び前記第2の軸が、前記管の管軸に実質的に垂直な管の断面の軸である、請求項1又は2に記載の放射状に拡張可能な管状ステント。
- 前記第1のセクションが少なくとも1つの弱いストラットを含み、各々の弱いストラットが部分的につぶれた状態及びつぶれた状態を有しており、各々の第2のセクションが複数の強いストラットを含み、各々の強いストラットが部分的につぶれた状態及びつぶれた状態を有しており、ここでは、各々の強いストラットをつぶすために必要な力は、各々の弱いストラットをつぶすための力より大きい、請求項1又は2に記載の放射状に拡張可能な管状ステント。
- 前記弱いストラットが拘束されていない状態にある場合は、前記少なくとも1つの弱いストラットは別の弱いストラットとは接触しない、請求項5に記載の放射状に拡張可能な管状ステント。
- 前記弱いストラットが完全に圧縮されている状態にある場合は、前記少なくとも1つの弱いストラットは別の弱いストラットとは接触しない、請求項5に記載の放射状に拡張可能な管状ステント。
- 弱いストラットより強いストラットを多く含む、請求項5に記載の放射状に拡張可能な管状ステント。
- 前記第1のセクションが少なくとも1つの弱いストラットを含み、各々の弱いストラットが部分的につぶれた状態及びつぶれた状態を有しており、各々の第2のセクションが複数の強いストラットを含み、各々の強いストラットが部分的につぶれた状態及びつぶれた状態を有しており、ここでは、各々の弱いストラットの個々のストラット圧壊抵抗力が、各々の強いストラットの個々のストラット圧壊抵抗力より大きい、請求項1又は2に記載の放射状に拡張可能な管状ステント。
- 角度がついた遠位末端をさらに含む、請求項1~9のいずれか一項に記載の放射状に拡張可能な管状ステント。
- 遠位末端の角度が一般的には5°~45°の範囲内である、請求項10に記載の放射状に拡張可能な管状ステント。
- 遠位末端の角度が患者の血管にフィットするために必要な角度である、請求項1に記載の放射状に拡張可能な管状ステント。
- 放射状に拡張可能な管状ステントであって、ここでは、
前記管の管軸方向に繰り返される少なくとも2つの環を形成する、周方向に隣接する複数のクローズドセル;及び
前記周方向に隣接するクローズドセルのそれぞれの1つずつを接続している複数の連結ストラットを含み、
隣接する環の中の周方向に隣接する前記複数のクローズドセルより少ない数の前記連結ストラットにより接続され、
前記ステントが、第1の圧壊抵抗力を有している第1のセクション及び第2の圧壊抵抗力を有している第2のセクションを含み、
前記第1の圧壊抵抗力は前記第2の圧壊抵抗力より弱く;
前記第1のセクションは、管を形成するように前記第2のセクションに対して接続されており、前記第1のセクションと前記第2のセクションの接続は前記管の管軸方向に伸びており、
前記ステントが楕円形の断面を有し、
第1の軸が前記楕円形の断面の短軸を含み、第2の軸が前記楕円形の断面の長軸を含み、
前記第2のセクションが前記第2の軸を横切るように構成されている、
放射状に拡張可能な管状ステント。 - 前記連結ストラットが、それぞれの環の反対側に対になるように配置されている、請求項13に記載の放射状に拡張可能な管状ステント。
- 前記連結ストラットの隣接するものが、それぞれの環の軸の周りの少なくとも1つの軸方向にインデックスされたセルの回転を伴うように配置され、それにより連結ストラットの螺旋の方向性が生じる、請求項13に記載の放射状に拡張可能な管状ステント。
- 前記連結ストラットが、ステントの長さに沿って予め決定された柔軟性を提供するように構成されている、請求項13に記載の放射状に拡張可能な管状ステント。
- 前記柔軟性がステントの長さに沿って変化する、請求項16に記載の放射状に拡張可能な管状ステント。
- インプラントであって、ここでは、
その長さ方向に沿った様々な柔軟性を有している自己拡張型ステントを含み:
前記自己拡張型ステントは、
第1の複数の個々のステントのセル;及び
柔軟性がある複数のブリッジ部材を含み、
ここでは、前記ステントのセルのうちの少なくとも1つの前記第1のセルが、ステントのセルのうちの第2のセルに対して、少なくとも1つの柔軟性があるブリッジ部材により連結されており、それによって柔軟性がある構築物が形成されており;
前記第2の複数の個々のステントのセルは、前記柔軟性があるブリッジ部材の1つによっては任意の他のステントのセルには連結されておらず、
前記第2の複数の個々のステントのセルの数は前記第1の複数の個々のステントのセルの数より少なく、
前記ステントが、第1の圧壊抵抗力を有する第1のセクションを形成する複数の前記第1のセル、及び、第2の圧壊抵抗力を有する第2のセクションを形成する複数の前記第2のセルを含み、
前記第1の圧壊抵抗力は前記第2の圧壊抵抗力より弱く;
前記第1のセクションは、管を形成するように前記第2のセクションに対して接続されており、前記第1のセクションと前記第2のセクションの接続は前記管の管軸方向に伸びており、
前記ステントが楕円形の断面を有し、
第1の軸が前記楕円形の断面の短軸を含み、第2の軸が前記楕円形の断面の長軸を含み、
前記第2のセクションが前記第2の軸を横切るように構成されている、
インプラント。 - 前記ステントの全長が、個々の前記ステントのセルの長さ及び前記柔軟性があるブリッジ部材の長さを含む、請求項18に記載のインプラント。
- 前記第1のセクションが、前記管の管軸方向に平行に直線的に連続する繰り返し存在するパターンで延びる第1の複数のセルを含み、
前記第1の複数のセルの各セルが、少なくとも2つのストラットを含み、
前記第2のセクションが、前記管の管軸方向に平行に直線的に連続する繰り返しパターンで延びる第2の複数のセルを含み、
前記第2の複数のセルの各セルが、少なくとも2つのストラットを含む、
請求項1~12のいずれか一項に記載の放射状に拡張可能な管状ステント。 - 前記第1の軸が前記第2の軸に対して垂直である、請求項1~12および20のいずれか一項に記載の放射状に拡張可能な管状ステント。
- 前記第1の軸が前記第2の軸に対して垂直である、請求項13~17のいずれか一項に記載の放射状に拡張可能な管状ステント。
- 前記第1の軸が第2の軸に対して垂直である、請求項18~19のいずれか一項に記載のインプラント。
- 左総腸骨静脈に適用される、請求項1~12および20~21のいずれか一項に記載の放射状に拡張可能な管状ステント。
- 左総腸骨静脈に適用される、請求項13~17および22のいずれか一項に記載の放射状に拡張可能な管状ステント。
- 左総腸骨静脈に適用される、請求項18~19および23のいずれか一項に記載のインプラント。
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JP6965336B2 (ja) | 2021-11-10 |
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