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公开(公告)号：US20250064498A1
公开(公告)日：2025-02-27
申请号：US18810110
申请日：2024-08-20
Applicant: Boston Scientific Scimed, Inc.
Inventor： James V. Kauphusman , Edward J. Maierhofer , Andrew L. DeKock , Nathan P. Hagstrom , Brian Soltis
IPC: A61B18/00
Abstract: An ablation catheter includes a tubular shaft having a proximal portion and a distal end and an electrode assembly extending from the distal end of the shaft. The electrode assembly includes a plurality of splines each having a spline proximal portion secured to the shaft, and an opposite spline distal portion. Each spline includes an electrically conductive support member partially disposed within an insulating member. The support member has a proximal end portion disposed within the insulating member and a distal end portion extending distally of the insulating member and terminating at a support member distal end. A plurality of sensing electrodes is disposed along each spline. A spline retainer mechanically engages with at least one of the proximal and distal portions of the splines.
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公开(公告)号：US20220015826A1
公开(公告)日：2022-01-20
申请号：US17378219
申请日：2021-07-16
Applicant: Boston Scientific Scimed Inc.
Inventor： Brendan E. Koop , Andrew L. De Kock , Allan C. Shuros , Edward J. Maierhofer
Abstract: A catheter for focal cardiac ablation by irreversible electroporation includes a flexible catheter body, a plurality of tines disposed at a distal end of the catheter body, a flexible shaft, a return electrode, and an electrical conductor. The plurality of tines are formed of an electrically conductive material and configured to deploy from a lumen at the distal end of the catheter body. Each tine of the plurality of tines is configured to self-bias from a linear configuration within the lumen to a curved configuration when deployed from the lumen. The shaft is mechanically and electrically coupled to the plurality of tines. The shaft is configured to deploy the tines from the lumen when the shaft is moved toward the distal end of the catheter body. The return electrode is disposed on an outer surface of the catheter body. The electrical conductor is electrically coupled to the return electrode.
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公开(公告)号：US12178662B2
公开(公告)日：2024-12-31
申请号：US15986667
申请日：2018-05-22
Applicant: Boston Scientific Scimed Inc.
Inventor： Kimberly A. Miklos , Joseph Walker , Edward J. Maierhofer , Garth Mindermann , Devon N Arnholt , Todd College
Abstract: A spring element for a contact force sensing medical catheter. The spring element includes a first ring, a second ring spaced apart from the first ring, a plurality of struts connecting the first ring to the second ring, and a plurality of interlocking features. The second ring and the first ring are coaxially aligned with a longitudinal axis of the spring element. The plurality of struts is configured to permit elastic, relative axial and radial displacement between the first ring and the second ring. The plurality of interlocking features is configured to limit the relative axial and radial displacement between the first ring and the second ring.
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公开(公告)号：US20230028549A1
公开(公告)日：2023-01-26
申请号：US17825249
申请日：2022-05-26
Applicant: Boston Scientific Scimed Inc.
Inventor： Edward J. Maierhofer , Trey H. Achterhoff , Brendan Early Koop
IPC: A61B18/14
Abstract: Various aspects of the present disclosure are directed toward apparatuses, systems, and methods for electroporation ablation. The electroporation catheter may include an electrode assembly comprising one or more ablation electrodes configured to generate electric fields proximate to target tissue in response to a plurality of electrical pulse sequences delivered in a plurality of therapy sections, and one or more mapping electrodes configured to measure cardiac electrical signals. In some embodiments, the measured electrical signals are used to create an electro-anatomical map.
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Patent Agency Ranking
公开(公告)号：US10758144B2
公开(公告)日：2020-09-01
申请号：US15239245
申请日：2016-08-17
Applicant: Boston Scientific Scimed Inc.
Inventor： Gregory Sallee , Kenneth L. Gunter , Danielle Frankson , Patrick A. Merriam , Edward J. Maierhofer , Matthew P. Jones
IPC: C25D11/26 , A61B5/042 , A61B5/00 , A61L29/02 , B05D1/00 , B05D3/06 , C23C14/04 , C23C14/16 , C23C14/58
Abstract: An electrode for cardiac signal sensing includes an intermediate layer, an iridium-containing layer, an iridium oxide layer, an insulating polymer layer, and a conductive layer formed on a flexible polymer substrate. The intermediate metal layer has a first portion and a second portion, and is formed on the conductive layer. The iridium-containing layer includes at least 50 wt. % iridium and has a first portion and a second portion, and is formed on the first portion of the intermediate metal layer. The iridium oxide layer is formed on the first portion of the iridium-containing layer. The insulating polymer layer is formed on the second portion of the intermediate metal layer and the second portion of the iridium-containing layer. The iridium-containing layer is not formed on the second portion of the intermediate metal layer; and the iridium oxide layer is not formed on the second portion of the iridium-containing layer.
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公开(公告)号：US20220096152A1
公开(公告)日：2022-03-31
申请号：US17488219
申请日：2021-09-28
Applicant: Boston Scientific Scimed Inc.
Inventor： Edward J. Maierhofer , Ryan P. Skarda
IPC: A61B18/14
Abstract: A catheter for ablation including a catheter shaft, a balloon at a distal end of the catheter shaft, and a microporous portion. The balloon is configured to support conductors and electrodes and contain a fluid. The microporous portion is coupled to the balloon to allow the fluid to flow out of the balloon and includes a plurality of apertures configured to prevent large air bubbles from exiting the balloon.
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公开(公告)号：US20170049349A1
公开(公告)日：2017-02-23
申请号：US15239245
申请日：2016-08-17
Applicant: Boston Scientific Scimed Inc.
Inventor： Gregory Sallee , Kenneth L. Gunter , Danielle Frankson , Patrick A. Merriam , Edward J. Maierhofer , Matthew P. Jones
Abstract: An electrode for cardiac signal sensing includes an intermediate layer, an iridium-containing layer, an iridium oxide layer, an insulating polymer layer, and a conductive layer formed on a flexible polymer substrate. The intermediate metal layer has a first portion and a second portion, and is formed on the conductive layer. The iridium-containing layer includes at least 50 wt. % iridium and has a first portion and a second portion, and is formed on the first portion of the intermediate metal layer. The iridium oxide layer is formed on the first portion of the iridium-containing layer. The insulating polymer layer is formed on the second portion of the intermediate metal layer and the second portion of the iridium-containing layer. The iridium-containing layer is not formed on the second portion of the intermediate metal layer; and the iridium oxide layer is not formed on the second portion of the iridium-containing layer.
Abstract translation: 用于心脏信号感测的电极包括中间层，含铱层，氧化铱层，绝缘聚合物层和形成在柔性聚合物衬底上的导电层。 中间金属层具有第一部分和第二部分，并且形成在导电层上。 含铱层包含至少50wt。 ％铱，并具有第一部分和第二部分，并且形成在中间金属层的第一部分上。 氧化铱层形成在含铱层的第一部分上。 绝缘聚合物层形成在中间金属层的第二部分和含铱层的第二部分上。 含铱层不形成在中间金属层的第二部分上; 并且铱氧化物层不形成在含铱层的第二部分上。
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8.发明公开公开(公告)号：US20240197394A1
公开(公告)日：2024-06-20
申请号：US18510178
申请日：2023-11-15
Applicant: Boston Scientific Scimed, Inc.
Inventor： Nathan P. Hagstrom , Brian Soltis , Edward J. Maierhofer , Andrew L. DeKock , Brendan E. Koop
IPC: A61B18/14
CPC classification number: A61B18/1492 , A61B2018/00577
Abstract: A catheter for ablation of tissue through irreversible electroporation includes an electrode assembly comprising a flexible circuit having a distally located central flex circuit hub and a plurality of flex circuit branches extending proximally from the hub portion, each of the flex circuit branches defining, at least in part, an electrode assembly spline. The flexible circuit further includes a distal ablation electrode including an ablation electrode hub portion, and a plurality of radial segments integrally formed with the ablation electrode hub portion, each of the radial segments extending proximally along a portion of a respective one of the flex circuit branches and terminating in a proximal end, a plurality of proximal ablation electrodes, each of the proximal ablation electrodes located on a respective one of the flex circuit branches and having a distal end spaced from the proximal end of the adjacent radial segment of the distal ablation electrode.
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公开(公告)号：US20180338811A1
公开(公告)日：2018-11-29
申请号：US15986667
申请日：2018-05-22
Applicant: Boston Scientific Scimed Inc.
Inventor： Kimberly A. Miklos , Joseph Walker , Edward J. Maierhofer , Garth Mindermann , Devon N. Arnholt , Todd College
Abstract: A spring element for a contact force sensing medical catheter. The spring element includes a first ring, a second ring spaced apart from the first ring, a plurality of struts connecting the first ring to the second ring, and a plurality of interlocking features. The second ring and the first ring are coaxially aligned with a longitudinal axis of the spring element. The plurality of struts is configured to permit elastic, relative axial and radial displacement between the first ring and the second ring. The plurality of interlocking features is configured to limit the relative axial and radial displacement between the first ring and the second ring.
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