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公开(公告)号：US20240081712A1
公开(公告)日：2024-03-14
申请号：US18506328
申请日：2023-11-10
发明人： Thomas V. SELKEE , Keshava DATTA , Thanh NGUYEN , Anand RAO , Rajesh PENDEKANTI , Meir BAR-TAL , Ricardo PADILLA
CPC分类号： A61B5/287 , A61B5/283 , A61B5/6856 , A61B18/1492 , A61B2018/00577
摘要： A catheter for electrophysiology applications is disclosed herein that includes a tubular member and an end effector. The end effector is coupled to a distal portion of the tubular member. The end effector includes first, second, and third loop members configured so that the first loop member defines a first plane, the second loop member defines a second plane at an angle to the first plane, and the third loop member defines a third plane at an angle to the first plane and at an angle to the second plane. Each of the first, second, and third loop members are configured as a respective single axis magnetic coil, and the first, second, and third loop members are collectively configured to function as a three axis magnetic sensor.
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公开(公告)号：US20200305952A1
公开(公告)日：2020-10-01
申请号：US16866401
申请日：2020-05-04
发明人： Reecha SHARMA , Robert B. STAGG , Zhong WANG , Betzi ZAFRA , Lee Ming BOO , Assaf GOVARI , Thomas V. SELKEE , Christopher Thomas BEECKLER , Andres Claudio ALTMANN , Joseph Thomas KEYES , Athanassios PAPAIOANNOU , Kristine B. FUIMAONO
摘要： An ablation catheter system for drug refractory symptomatic paroxysmal atrial fibrillation (PAF). The system can include an elongated body; an electrode assembly comprising a shell configured with an inner chamber and a wall defining a proximal portion and a distal portion, the wall of the distal portion having at least one aperture; and a micro-element extending through the inner chamber between the proximal portion and the distal portion, the micro-element having a distal end received in the at least one aperture, the distal end being at least coextensive with an outer surface of the wall. The system is configured to achieve acute procedural PVI success for all patients of a predetermined patient population suffering from PAF.
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公开(公告)号：US20210137593A1
公开(公告)日：2021-05-13
申请号：US17152606
申请日：2021-01-19
发明人： Julie BUI , Oscar GALVAN , Jose JIMENEZ , Thanh NGUYEN , Ricardo PADILLA , Thomas V. SELKEE
摘要： A catheter has a distal assembly with at least one loop with ring electrodes. A single continuous puller wire for bidirectional deflection is pre-bent into two long portions and a U-shape bend therebetween. The U-shape bend is anchored at a distal end of a deflectable section which is reinforced by at least one washer having at least two holes, each hole axially aligned with a respective lumen in the deflectable section. Each hole is centered with a lumen so that each puller wire portion therethrough is straight and subjected to tensile force only. A proximal end of the support member is flattened and serrated to provide a better bonding to the distal end of the deflectable section.
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公开(公告)号：US20200345415A1
公开(公告)日：2020-11-05
申请号：US16864704
申请日：2020-05-01
发明人： Reecha SHARMA , Robert B. STAGG , Zhong WANG , Betzi ZAFRA , Lee Ming BOO , Assaf GOVARI , Thomas V. SELKEE , Christopher Thomas BEECKLER , Andres Claudio ALTMANN , Joseph Thomas KEYES , Athanassios PAPAIOANNOU , Kristine B. FUIMAONO
IPC分类号： A61B18/14
摘要： A method that includes selectively positioning an ablation catheter system at a treatment site; and ablating tissue at the treatment site with the ablation catheter system using a power setting of approximately 90W applied to tissue for approximately four (4) second increments with a break period of approximately 4 seconds between applications.
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公开(公告)号：US20220151693A1
公开(公告)日：2022-05-19
申请号：US17526299
申请日：2021-11-15
发明人： Reecha SHARMA , Robert B. STAGG , Zhong WANG , Betzi ZAFRA , Lee Ming BOO , Assaf GOVARI , Thomas V. SELKEE , Christopher Thomas BEECKLER , Andres Claudio ALTMANN , Joseph Thomas KEYES , Athanassios PAPAIOANNOU , Kristine B. FUIMAONO
IPC分类号： A61B18/14
摘要： A method that includes selectively positioning an ablation catheter system at a treatment site; and ablating tissue at the treatment site with the ablation catheter system using a power setting of approximately 90W applied to tissue for approximately four (4) second increments with a break period of approximately 4 seconds between applications.
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公开(公告)号：US20210052323A1
公开(公告)日：2021-02-25
申请号：US17090760
申请日：2020-11-05
发明人： Thomas V. SELKEE , Jose L. Jimenez
摘要： A catheter with a variable circular loop responsive to a contraction wire for coiling is supported by a member having a tapered distal section that transitions from a circular cross-section to a generally rectangular cross-section while maintaining a uniform cross-sectional area along the entire tapered length for improved coiling characteristics. A radially constrictive sleeve prevents separation of the contraction wire from the support member to minimize misshaping of the loop during contraction.
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公开(公告)号：US20200093540A1
公开(公告)日：2020-03-26
申请号：US16695165
申请日：2019-11-25
发明人： Julie BUI , Oscar GALVAN , Jose JIMENEZ , Thanh NGUYEN , Ricardo PADILLA , Thomas V. SELKEE
摘要： A catheter has a distal assembly with at least one loop with ring electrodes. A single continuous puller wire for bidirectional deflection is pre-bent into two long portions and a U-shape bend therebetween. The U-shape bend is anchored at a distal end of a deflectable section which is reinforced by at least one washer having at least two holes, each hole axially aligned with a respective lumen in the deflectable section. Each hole is centered with a lumen so that each puller wire portion therethrough is straight and subjected to tensile force only. A proximal end of the support member is flattened and serrated to provide a better bonding to the distal end of the deflectable section.
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公开(公告)号：US20240173070A1
公开(公告)日：2024-05-30
申请号：US18433871
申请日：2024-02-06
发明人： Thomas V. SELKEE , Jose L. Jimenez
CPC分类号： A61B18/1492 , A61B5/287 , A61B5/6852 , A61M25/0147 , A61B2017/00053 , A61B2017/00867 , A61B2018/0016 , A61B2018/00357 , A61B2018/00577 , A61B2018/00791 , A61B2018/00797 , A61B2018/00821 , A61B2018/00839 , A61B2018/1435 , A61B2018/1467 , A61B2218/002 , A61M2025/0163 , A61M2025/0166
摘要： A catheter with a variable circular loop responsive to a contraction wire for coiling is supported by a member having a tapered distal section that transitions from a circular cross-section to a generally rectangular cross-section while maintaining a uniform cross-sectional area along the entire tapered length for improved coiling characteristics. A radially constrictive sleeve prevents separation of the contraction wire from the support member to minimize misshaping of the loop during contraction.
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公开(公告)号：US20230226638A1
公开(公告)日：2023-07-20
申请号：US18065709
申请日：2022-12-14
发明人： Keshava DATTA , Anand RAO , Thanh NGUYEN , Thomas V. SELKEE
CPC分类号： B23K11/3009 , H05H1/34
摘要： Wiring is disclosed herein that is configured to supply IRE ablation signals through a catheter body and is resistant against dielectric breakdown, arcing, and noise during ablation. The wiring includes a highly conductive core, a conductive cover surrounding the core that has lower electrical and/or thermal conductivity than the core, and an insulative jacket surrounding the conductive cover. A catheter including such wiring may be suitable for supplying electrical signals to tissue to perform IRE ablation. In some examples, such a catheter can also be suitable for reversible electroporation and/or RF ablation.
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公开(公告)号：US20190269887A1
公开(公告)日：2019-09-05
申请号：US16415207
申请日：2019-05-17
发明人： Thomas V. SELKEE
摘要： A medical device control handle has a first actuation assembly and a second actuation assembly, wherein each assembly has a shaft that is axially aligned but not rotationally coupled with the other shaft. The first actuation assembly includes a first actuation member and a clutch mechanism having a friction disk for generating frictional torque in rendering the first actuation member self-holding. The first actuation member has a cam portion adapted to impart translational motion and rotational motion for disengaging the clutch mechanism upon pivotation of the first actuation member, thus allowing rotation of the first shaft to manipulate a feature of the medical device, for example, deflection. The second actuation assembly includes a second actuation member and a translating member that is responsive to rotation of the second shaft so as to manipulate another feature of the medical device. The second actuation member is also self holding.
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