JP2022520253A - ステント送達システム - Google Patents
ステント送達システム Download PDFInfo
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- JP2022520253A JP2022520253A JP2021547267A JP2021547267A JP2022520253A JP 2022520253 A JP2022520253 A JP 2022520253A JP 2021547267 A JP2021547267 A JP 2021547267A JP 2021547267 A JP2021547267 A JP 2021547267A JP 2022520253 A JP2022520253 A JP 2022520253A
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- rack
- indwelling sheath
- delivery system
- coupling member
- stent delivery
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Images
Classifications
-
- 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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
-
- 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
- A61F2/2436—Deployment by retracting a sheath
-
- 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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
-
- 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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/9517—Instruments specially adapted for placement or removal of stents or stent-grafts handle assemblies therefor
-
- 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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Description
上記実施形態のいずれかの代わりに又はそれに加えて、カップリング部材は、環状開口部を含む。
上記実施形態のいずれかの代わりに又はそれに加えて、留置用シースの近位端領域に沿って配置されたスリーブをさらに含み、スリーブは、ラックに対する留置用シースの遠位への相対的な動きを制限するように設計される。
上記実施形態のいずれかの代わりに又はそれに加えて、ラックの少なくとも一部分は、留置用シースに結合されたハンドル内に配置される。
上記実施形態のいずれかの代わりに又はそれに加えて、ラックは、第1の構成と第2の構成との間で移行するように設計されており、歯部は、ラックが第1の構成にあるときにギヤの上部領域と噛合する。
上記実施形態のいずれかの代わりに又はそれに加えて、ハンドルは、湾曲領域を備えたラック軌道を含み、ラックの少なくとも任意のセクションは、ラックが第2の構成にあるときに湾曲領域に沿って延びる。
上記実施形態のいずれかの代わりに又はそれに加えて、回転可能なリンク機構は、途切れた環状開口部を含む。
上記実施形態のいずれかの代わりに又はそれに加えて、カップリング部材は、環状開口部を含む。
上記実施形態のいずれかの代わりに又はそれに加えて、留置用シースの近位端領域に沿って配置されたスリーブをさらに備え、スリーブは、ラックに対する留置用シースの遠位への相対的な動きを制限するように設計される。
上記実施形態のいずれかの代わりに又はそれに加えて、ラックは、複数の歯を有する歯部を含み、歯部は、ハンドル内に配置されたギヤに噛合するように設計される。
上記実施形態のいずれかの代わりに又はそれに加えて、歯部は、ラックが第2の構成にあるときにギヤの下部領域と噛合する。
ステント送達システムが開示される。ステント送達システムは、ステント受け入れ領域を有するインナ部材と、ステント受け入れ領域に沿って配置されたステントと、インナ部材に対して相対的に軸方向に摺動可能な留置用シースであって、近位端領域を有する、留置用シースと、留置用シースに結合されたハンドルであって、湾曲領域を備えたラック軌道を有するハンドルと、留置用シースの近位端領域に結合された可撓性ラックであって、ラック軌道に沿って移動するように設計される、可撓性ラックと、留置用シースの少なくとも一部分に沿って配置されたアウタシャフトと、を備える。
上記実施形態のいずれかの代わりに又はそれに加えて、可撓性ラックは、複数の歯を有する歯部を含み、歯部は、ハンドル内に配置されたギヤに噛合するように設計される。
上記実施形態のいずれかの代わりに又はそれに加えて、可撓性ラックの少なくとも任意のセクションは、可撓性ラックが第2の構成にあるときに湾曲領域に沿って延びる。
本明細書中の全ての数値は、明示的に示されているか否かを問わず、「約(about)」という用語によって修飾されるものと考えられる。「約」という用語は、一般に、当業者であれば、記述された値に等しい(例えば、同じ機能又は結果を有する)と考えるであろう数の範囲を指す。多くの場合、「約」という用語は、最も近い有効数字に四捨五入された数を含み得る。
本明細書及び添付の特許請求の範囲で使用されるように、単数形「1つの(a)」、「1つの(an)」及び「その(the)」は、内容に別段の明確な指示のない限り、複数形の指示対象を含む。本明細書及び添付の特許請求の範囲で使用されるように、「又は」という用語は、一般に、内容に別段の明確な指示のない限り、「及び/又は」を含む意味で用いられる。
Claims (15)
- ステント受け入れ領域を有するインナ部材と、
前記ステント受け入れ領域に沿って配置されたステントと、
前記インナ部材に対して相対的に軸方向に摺動可能な留置用シースであって、近位端領域を有する、留置用シースと、
前記留置用シースの前記近位端領域に結合されたラックと、
前記留置用シースの少なくとも一部分に沿って配置されたアウタシャフトと、
を備え、
前記留置用シースは、前記インナ部材、前記アウタシャフト、又は前記インナ部材と前記アウタシャフトの両方に対して相対回転可能である、
ステント送達システム。 - 前記ラックは、当該ラックに前記留置用シースを結合するように設計されたカップリング部材を含む、請求項1に記載のステント送達システム。
- 前記カップリング部材は、環状開口部を含む、請求項2に記載のステント送達システム。
- 前記カップリング部材は、途切れた環状開口部を含む、請求項2に記載のステント送達システム。
- 前記留置用シースの前記近位端領域に沿って配置されたスリーブをさらに備え、前記スリーブは、前記ラックに対する前記留置用シースの遠位への相対的な動きを制限するように設計される、請求項2~4のいずれか一項に記載のステント送達システム。
- 前記ラックは、第1のカップリング部材と第2のカップリング部材とを含み、前記第1のカップリング部材及び前記第2のカップリング部材は、前記ラックに前記留置用シースを結合するように設計されるとともに、前記留置用シースの前記近位端領域は、前記ラックに対し、前記第1のカップリング部材及び前記第2のカップリング部材に隣接して配置される、請求項1~5のいずれか一項に記載のステント送達システム。
- 前記留置用シースの前記近位端領域に沿って配置されたスリーブをさらに備え、前記スリーブは、前記ラックに対する前記留置用シースの遠位への相対的な動きを制限するように設計される、請求項6に記載のステント送達システム。
- 前記スリーブは、前記第1のカップリング部材と前記第2のカップリング部材との間に配置される、請求項7に記載のステント送達システム。
- 前記ラックの少なくとも一部分は、前記留置用シースに結合されたハンドル内に配置される、請求項1~8のいずれか一項に記載のステント送達システム。
- 前記ラックは、複数の歯を有する歯部を含み、前記歯部は、前記ハンドル内に配置されたギヤに噛合するように設計される、請求項9に記載のステント送達システム。
- 前記ラックは、第1の構成と第2の構成との間で移行するように設計されており、前記歯部は、前記ラックが前記第1の構成にあるときに前記ギヤの上部領域と噛合する、請求項10に記載のステント送達システム。
- 前記歯部は、前記ラックが前記第2の構成にあるときに前記ギヤの下部領域と噛合する、請求項11に記載のステント送達システム。
- 前記ハンドルは、湾曲領域を備えたラック軌道を含み、前記ラックの少なくとも任意のセクションは、前記ラックが前記第2の構成にあるときに前記湾曲領域に沿って延びる、請求項11又は12に記載のステント送達システム。
- ステント受け入れ領域を有するインナ部材と、
前記ステント受け入れ領域に沿って配置されたステントと、
前記インナ部材に対して相対的に軸方向に摺動可能な留置用シースと、
回転可能なリンク機構によって前記留置用シースの近位端領域に結合された可撓性ラックと、
前記留置用シースの少なくとも一部分に沿って配置されたアウタシャフトと、
を備える、ステント送達システム。 - 前記回転可能なリンク機構は、前記留置用シースの前記近位端領域に沿って配置されたスリーブを含み、前記スリーブは、前記可撓性ラックに対する前記留置用シースの遠位への相対的な動きを制限するように設計される、請求項14に記載のステント送達システム。
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