JP7038272B2 - 一体型医療デバイス、その製造方法、およびその使用方法 - Google Patents
一体型医療デバイス、その製造方法、およびその使用方法 Download PDFInfo
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- 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
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
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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
- A61F2/82—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
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
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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
- A61F2/06—Blood vessels
- A61F2002/068—Modifying the blood flow model, e.g. by diffuser or deflector
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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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2002/823—Stents, different from stent-grafts, adapted to cover an aneurysm
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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
- A61F2/82—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
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/9155—Adjacent bands being connected to each other
- A61F2002/91575—Adjacent bands being connected to each other connected peak to trough
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Description
Claims (19)
- 植え込み式医療デバイスであって、
複数の隣接するリング部材であって、リング部材の各々は、Z形パターンを画定する複数のストラットを含み、前記Z形パターンは、隣接するストラットを相互接続することにより形成される頂点により画定される複数の山と、連続する頂点で囲まれたオープンスペースにより画定される複数の谷とを含み、前記植え込み式医療デバイスの長手方向軸に沿って互いに対して間隔を空けた関係で配置される、前記複数の隣接するリング部材と、
前記複数の隣接するリング部材の対を相互接続する複数のS形部材であって、前記複数のS形部材の各々は、第1の楕円形状の断面と、第2の楕円形状の断面とを含み、前記第1の楕円形状の断面は、第1のリング部材の山と接続され、前記第2の楕円形状の断面は、第2のリング部材の次の円周方向に隣接する山と接続される、複数のS形部材と、を備え、
前記植え込み式医療デバイスが拡張状態のとき、前記第1の楕円形状の断面は、前記第2のリング部材の円周方向に隣接する山の間に配置され、前記第2のリング部材の前記オープンスペースの谷に入れ子になっており、前記第2の楕円形状の断面は、前記第1のリング部材の円周方向に隣接する山の間に配置され、前記第1のリング部材の前記オープンスペースの谷に入れ子になっている、植え込み式医療デバイス。 - 前記第1の楕円形状の断面は、前記植え込み式医療デバイスの長手方向の軸に全体的に平行な主軸を含み、前記第1の楕円形状の断面は、前記主軸の第1の端部に第1の円周リング部材の山と接続される第1の部分と、前記主軸の第2の端部における第2の部分とをさらに備え、前記第2の部分は、前記主軸の前記第1の端部と近接する前記第2の楕円形状の断面と結合され、
前記第2の楕円形状の断面は、血管内ステントデバイスの長手方向の軸に全体的に平行であって、且つ前記主軸から円周方向にオフセットしている第2の主軸を含み、前記第2の楕円形状の断面は、前記第2の主軸の第2の端部に近接する前記第1の楕円形状の断面と結合され、且つさらに前記第2の主軸の第1の端部に第4の部分に結合される第3の部分をさらに備え、前記第4の部分は、前記第2の主軸の前記第2の端部において前記第2のリング部材の山と接続される、請求項1に記載の植え込み式医療デバイス。 - 複数の山と複数の谷とを含む端部Z形パターンを含む端部リング部材をさらに備える、請求項1に記載の植え込み式医療デバイス。
- 前記端部Z形パターンの山の各々が、隣接するZ形パターン部材の谷と2つおきに接続される、請求項3に記載の植え込み式医療デバイス。
- 前記植え込み式医療デバイスが配置された状態で、第2の部材の円周間隔が、0.1マイクロメートル以上20マイクロメートル以下である、請求項1に記載の植え込み式医療デバイス。
- 前記植え込み式医療デバイスは、0.1マイクロメートル以上100マイクロメートル以下の壁の厚みを有し、前記植え込み式医療デバイスは、前記植え込み式医療デバイスが0.2mm以上2.0mm以下の直径を有する縮んだ状態と、前記植え込み式医療デバイスが2.0mm以上7.0mm以下の直径を有する拡張状態とを有するように構成されている、請求項1に記載の植え込み式医療デバイス。
- 第2の部材の前記第1の楕円形状の断面は、前記植え込み式医療デバイスの端部に面する開口を有する部分的な楕円形状を備え、前記第2の楕円形状の断面は、前記植え込み式医療デバイスと対向する端部に面する開口を有する部分的な楕円形状を備える、請求項1に記載の植え込み式医療デバイス。
- 前記第1の楕円形状の断面の前記第2の部分を前記第2の楕円形状の断面の前記第3の部分に接続する湾曲部材をさらに備え、前記湾曲部材は、前記植え込み式医療デバイスの長手方向の軸に全体的に沿って方向づけられる、請求項2に記載の植え込み式医療デバイス。
- 血管内ステントの近位端に配置される第1の末端Z形パターン部材と、前記植え込み式医療デバイスの遠位端に配置される第2の末端Z形パターン部材と、をさらに備え、前記第1の末端Z形パターン部材および前記第2の末端Z形パターン部材は、前記近位端および前記遠位端の山にそれぞれ連結される、請求項1に記載の植え込み式医療デバイス。
- 第1および第2の末端部材は、前記血管内ステントデバイスの前記長手方向の軸に、前記第1の末端Z形パターン部材および第2の末端Z形パターン部材の長さよりも大きい長さを有する複数のZ形パターンリング部材をさらに備える、請求項9に記載の植え込み式医療デバイス。
- 前記植え込み式医療デバイスは、神経血管部に送達できるフローダイバーター(flow diverter)血管内ステントである、請求項1に記載の植え込み式医療デバイス。
- 前記植え込み式医療デバイスは、スプリングバック効果を最適化するために熱処理される、請求項1に記載の植え込み式医療デバイス。
- 前記植え込み式医療デバイスは、血管内ステント、ステントグラフト、グラフト、心臓弁、静脈弁、フィルタ、閉塞装置、カテーテル、シース、骨の移植片、植え込み式避妊具、植え込み式抗腫瘍ペレットもしくはロッド、シャントおよびパッチ、ペースメーカ、針、一時的固定用ロッド、任意の種類の医療デバイス用の医療用ワイヤもしくは医療用管、または塞栓保護ステントカバーからなるデバイスの群から選択される、請求項1に記載の植え込み式医療デバイス。
- 前記植え込み式医療デバイスを通る大部分の流体の流れを変えることにより、前記植え込み式医療デバイスが送達される血管の動脈瘤が経時的に縮小する機会を提供する、請求項1に記載の植え込み式医療デバイス。
- 前記植え込み式医療デバイスは、拡張状態、および送達のための収縮状態を含む、請求項1に記載の植え込み式医療デバイス。
- 前記植え込み式医療デバイスの近位端または遠位端に端部リングをさらに含む、請求項1に記載の植え込み式医療デバイス。
- 前記端部リングは、細胞遊走を防止するか、またはマーカ留置のために使用される、請求項16に記載の植え込み式医療デバイス。
- タンタルの放射線不透過性層が、前記植え込み式医療デバイスの2つの金属層の間にある、請求項1に記載の植え込み式医療デバイス。
- 前記植え込み式医療デバイスは、カテーテルの先端のライナ、薬剤溶出性バルーン用の枠組/圧子、および血管ステントとして構成され、頸動脈または冠動脈の不安定プラークの封じ込め、血流変更、神経のコイルの付属物、および血管穿孔に使用される、請求項1に記載の植え込み式医療デバイス。
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GB2514135B (en) * | 2013-05-14 | 2015-04-15 | Cook Medical Technologies Llc | Implantable flow diverter |
WO2017165833A1 (en) * | 2016-03-24 | 2017-09-28 | Covidien Lp | Thin wall constructions for vascular flow diversion |
EP3763340A1 (en) * | 2016-03-24 | 2021-01-13 | Covidien LP | Vascular flow diversion |
US10835398B2 (en) * | 2017-11-03 | 2020-11-17 | Covidien Lp | Meshes and devices for treating vascular defects |
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