JP6886564B2 - 集束型腔内結石摘出カテーテル装置および方法 - Google Patents
集束型腔内結石摘出カテーテル装置および方法 Download PDFInfo
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Description
Michael J. Tozzi(フロリダ州Windermere市、アメリカ合衆国国民)
関連出願の参照
本願は、2017年11月14日に出願され、「集束型腔内結石摘出カテーテル装置および方法」と題された米国仮出願第62/585719号の利益を主張し、当該出願の全体が参照により本明細書に組み込まれる。
無し
発明の背景
発明の分野
本発明は、管腔内の結石破砕を行うために使用される装置に関し、より具体的には、血管内の狭窄物を破砕するための結石破砕カテーテルに関する。
末梢動脈疾患(PAD)は、心臓および脳の外側に位置する血管の疾患を指す。最も多くの場合、この疾患は、動脈に沈着する脂肪物または石灰化プラークによって引き起こされる。PADは、血管を狭くし、硬化させ、可撓性を低くするように血管に影響を与え、したがって、腕、腎臓、胃、最も一般的には下肢への血流を制限する。
PADの外科処置は、バイパス移植、バルーン血管形成/ステント挿入、および粥腫切除を含む。
図面を参照して、人体の解剖構造内の管腔または他の身体空間内に使用される電気機械的発生器およびカテーテルの様々な実施形態が示されている。本発明およびその方法は、好ましくは、血管、例えば動脈内の狭窄物または閉塞物を除去するために使用される。
Claims (12)
- 患者の体内管腔内部の物質を除去するためのシステムであって、
前記患者の外部に配置されるように構成されたパルス発生器と、
カテーテルとを備え、前記カテーテルは、遠位端を有する内側管腔と、前記カテーテルの前記内側管腔の内部に配置され、前記カテーテルの前記内側管腔の前記遠位端から近位側に離間した電極対ハウジングに取り付けられた少なくとも1対の電極とを含み、前記電極対ハウジングは、前記内側管腔の内部で防水シールを形成し、前記少なくとも1対の電極は、配線を介して前記パルス発生器に動作可能に接続され、前記少なくとも1つの電極対が前記パルス発生器によって通電されると、前記少なくとも1つの電極対の電極間にアークを発生することによって衝撃波を発生するように構成され、
流体充填可能且つ水密性の部材を備え、前記部材は、前記カテーテルに封止された近位端を含み、前記カテーテルの前記内側管腔の内部に配置された流体導管および流体リザーバと流体連通し、且つ前記電極対ハウジングの遠位側の前記カテーテルの前記内側管腔の一部と流体連通し、前記部材は、流体で膨張するように構成され、
非展開構成と展開構成との間に切換えるように構成された少なくとも1つの前方集束反射器を備え、前記展開構成において前記少なくとも1つの前方集束反射器は前記衝撃波を前方に、かつ前記カテーテルの前記内側管腔から離れて遠位側に誘導するように位置し、前記少なくとも1つの前方集束反射器は、前記カテーテルの前記内側管腔の前記遠位端を少なくとも部分的に越えて遠位側に延在し、前記少なくとも1つの前方集束反射器は、展開され且つ前記部材が膨張させられると、前記流体充填可能な部材と動作可能に接続される、システム。 - 前記少なくとも1つの前方集束反射器は、拡張するように付勢されている、請求項1に記載のシステム。
- 前記少なくとも1つの前方集束反射器は、形状記憶材料を含む、請求項2に記載のシステム。
- 前記少なくとも1つの前方集束反射器は、拡張するように付勢されているバネ要素を含む、請求項2に記載のシステム。
- 前記少なくとも1つの前方集束反射器は、前記カテーテルの外面に取り付けられ、前記カテーテル管腔の前記遠位端を越えて遠位側に延在する、請求項1に記載のシステム。
- 前記少なくとも1つの前方集束反射器は、前記カテーテルの内面に取り付けられ、前記カテーテル管腔の前記遠位端を越えて遠位側に延在する、請求項1に記載のシステム。
- 前記少なくとも1つの前方集束反射器は、前記部材の外面に動作可能に接続される、請求項1に記載のシステム。
- 前記少なくとも1つの前方集束反射器は、前記部材の内面に動作可能に接続される、請求項1に記載のシステム。
- 前記少なくとも1つの前方集束反射器は、前記部材が膨張させられると、前記非展開構成から前記展開構成に切換えるように構成されている、請求項1に記載のシステム。
- 前記少なくとも1つの前方集束反射器は、前記部材が膨張させられると、前記非展開構成から前記展開構成に切換えるように構成されている、請求項7に記載のシステム。
- 前記少なくとも1つの前方集束反射器は、前記部材が膨張させられると、前記非展開構成から前記展開構成に切換えるように構成されている、請求項8に記載のシステム。
- 前記少なくとも1つの前方集束反射器は、楕円形または円錐形である、請求項1に記載のシステム。
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Application Number | Priority Date | Filing Date | Title |
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JP2021082671A JP2021166714A (ja) | 2017-11-14 | 2021-05-14 | 集束型腔内結石摘出カテーテル装置および方法 |
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US201762585719P | 2017-11-14 | 2017-11-14 | |
US62/585,719 | 2017-11-14 | ||
US16/188,771 US10765440B2 (en) | 2017-11-14 | 2018-11-13 | Focused intraluminal lithectomy catheter device and methods |
US16/188,771 | 2018-11-13 | ||
PCT/US2018/060874 WO2019099424A1 (en) | 2017-11-14 | 2018-11-14 | Focused intraluminal lithectomy catheter device and methods |
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CA (1) | CA3082822C (ja) |
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CN112367934A (zh) | 2018-06-21 | 2021-02-12 | 冲击波医疗公司 | 治疗躯体管腔中的闭塞物的系统 |
US11992232B2 (en) * | 2020-10-27 | 2024-05-28 | Shockwave Medical, Inc. | System for treating thrombus in body lumens |
US20220273324A1 (en) * | 2021-03-01 | 2022-09-01 | Bolt Medical, Inc. | Valvuloplasty treatment assembly and method using directed bubble energy |
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US10765440B2 (en) | 2020-09-08 |
JP2021502869A (ja) | 2021-02-04 |
CN112203601A (zh) | 2021-01-08 |
EP4230156A3 (en) | 2023-10-18 |
EP3709907B1 (en) | 2023-05-10 |
CA3082822A1 (en) | 2019-05-23 |
AU2018369631A1 (en) | 2020-07-02 |
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