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公开(公告)号：US12048480B2
公开(公告)日：2024-07-30
申请号：US17321763
申请日：2021-05-17
CPC分类号： A61B18/1492 , A61B2018/00351 , A61B2018/00357 , A61B2018/00577 , A61B2018/00613 , A61B2018/00648 , A61B2018/00702 , A61B2018/00708 , A61B2018/00761 , A61B2018/00791 , A61B2018/00797 , A61B2018/00827 , A61B2018/00839 , A61B18/1206 , A61B2090/065 , A61N1/327
摘要： A method and system for mapping tissue and producing lesions for the treatment of cardiac arrhythmias in a non-thermal and optimal manner, minimizing the amount of energy required to selectively stun or ablate the target tissues. Energy may be delivered only at the moment(s) of best device position and proximity of an electrode to target tissue, and only during a time in the cardiac cycle determined to be optimal for reversible or irreversible effects. A method may include determining timing of the cardiac cycle and an optimal time within the cardiac cycle for energy delivery, evaluating proximity between at least one energy delivery electrode and the target tissue, and delivering pulsed field energy from the at least one energy delivery electrode to the target tissue when, during the optimal time for energy delivery, the at least one energy delivery electrode is in close proximity with the target tissue.
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公开(公告)号：US20200315703A1
公开(公告)日：2020-10-08
申请号：US16904692
申请日：2020-06-18
发明人： Marshall L. Sherman , Catherine R. Condie , Trenton J. Rehberger , Steven J. Fraasch , Mark T. Stewart
IPC分类号： A61B18/14 , A61B5/00 , A61B5/042 , A61B5/0428 , A61B18/12
摘要： Methods and systems for combining ablation therapy with navigation of the ablation device. An ablation system may be configured for use with one of two methods to prevent loss of navigation signals during ablation energy delivery. In the first method, ablation energy signals are filtered from the navigation signal. In the second method, the delivery of ablation energy is sequenced with the delivery of navigation energy such that ablation energy and navigation energy are not delivered at the same time and navigation signals received by the system are time-division multiplexed to reconstruct the navigation signals and determine a location of the device within the patient.
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3.发明授权公开(公告)号：US10166071B2
公开(公告)日：2019-01-01
申请号：US14996875
申请日：2016-01-15
摘要： A method of assessing a tissue ablation treatment, including positioning a medical device adjacent a target tissue; measuring a first impedance magnitude a first frequency with the medical device; measuring a first impedance phase at a second frequency with the medical device; ablating at least a portion of the target tissue with the medical device; measuring at second impedance magnitude at a third frequency with the medical device; measuring a second impedance phase at a fourth frequency with the medical device; comparing at least one of (i) the first and second impedance magnitudes and (ii) the first and second impedance phases; and providing an indication of the efficacy of the ablation treatment based at least in part on the comparison.
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公开(公告)号：US09814523B2
公开(公告)日：2017-11-14
申请号：US14304334
申请日：2014-06-13
CPC分类号： A61B18/1492 , A61B2018/00029 , A61B2018/00267 , A61B2018/00363 , A61B2018/00577 , A61B2018/00821 , A61B2018/1407 , A61B2018/1467 , A61B2218/002
摘要： A method of ablating an epicardial tissue region, including positioning a medical device adjacent the epicardial tissue region, the medical device having a first electrode, a second electrode, and a third electrode located in between the first and second electrodes; delivering an irrigation fluid to the tissue region; and ablating at least a portion of the tissue region by sequentially activating the third electrode in a monopolar radiofrequency delivery mode and activating the first and second electrodes in a bipolar radiofrequency delivery mode.
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公开(公告)号：US10143399B2
公开(公告)日：2018-12-04
申请号：US14677740
申请日：2015-04-02
发明人： Catherine R. Condie , Marshall L. Sherman , Corinne Weyrauch , Steven J. Fraasch , Trento Jay Rehberger
摘要： A method and system for assessing electrode-tissue contact before the delivery of ablation energy. The method may generally include determining a difference between a maximum impedance magnitude at a low frequency for a given electrode and an absolute minimum impedance magnitude at the low frequency across all electrodes, determining a difference between a maximum impedance magnitude at a high frequency for a given electrode and an absolute minimum impedance magnitude at the high frequency across all electrodes, and determining a difference between a maximum impedance phase at the high frequency for a given electrode and an absolute minimum impedance phase at the high frequency across all electrodes. These differences may be correlated to one another using a linear model, the results of which determining whether the given electrode is in contact or not in contact with tissue.
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公开(公告)号：US11033329B2
公开(公告)日：2021-06-15
申请号：US16359278
申请日：2019-03-20
摘要： A method and system for mapping tissue and producing lesions for the treatment of cardiac arrhythmias in a non-thermal and optimal manner, minimizing the amount of energy required to selectively stun or ablate the target tissues. Energy may be delivered only at the moment(s) of best device position and proximity of an electrode to target tissue, and only during a time in the cardiac cycle determined to be optimal for reversible or irreversible effects. A method may include determining timing of the cardiac cycle and an optimal time within the cardiac cycle for energy delivery, evaluating proximity between at least one energy delivery electrode and the target tissue, and delivering pulsed field energy from the at least one energy delivery electrode to the target tissue when, during the optimal time for energy delivery, the at least one energy delivery electrode is in close proximity with the target tissue.
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公开(公告)号：US10722302B2
公开(公告)日：2020-07-28
申请号：US15277404
申请日：2016-09-27
发明人： Marshall L. Sherman , Catherine R. Condie , Trenton J. Rehberger , Steven J. Fraasch , Mark T. Stewart
IPC分类号： A61B18/14 , A61B5/00 , A61B5/042 , A61B5/0428 , A61B18/12 , A61B18/00 , A61B34/20 , A61B90/00 , A61B17/00 , A61B18/02
摘要： Methods and systems for combining ablation therapy with navigation of the ablation device. An ablation system may be configured for use with one of two methods to prevent loss of navigation signals during ablation energy delivery. In the first method, ablation energy signals are filtered from the navigation signal. In the second method, the delivery of ablation energy is sequenced with the delivery of navigation energy such that ablation energy and navigation energy are not delivered at the same time and navigation signals received by the system are time-division multiplexed to reconstruct the navigation signals and determine a location of the device within the patient.
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公开(公告)号：US10271893B2
公开(公告)日：2019-04-30
申请号：US14664269
申请日：2015-03-20
摘要： A method and system for mapping tissue and producing lesions for the treatment of cardiac arrhythmias in a non-thermal and optimal manner, minimizing the amount of energy required to selectively stun or ablate the target tissues. Energy may be delivered only at the moment(s) of best device position and proximity of an electrode to target tissue, and only during a time in the cardiac cycle determined to be optimal for reversible or irreversible effects. A method may include determining timing of the cardiac cycle and an optimal time within the cardiac cycle for energy delivery, evaluating proximity between at least one energy delivery electrode and the target tissue, and delivering pulsed field energy from the at least one energy delivery electrode to the target tissue when, during the optimal time for energy delivery, the at least one energy delivery electrode is in close proximity with the target tissue.
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公开(公告)号：US20240252235A1
公开(公告)日：2024-08-01
申请号：US18437518
申请日：2024-02-09
发明人： Marshall L. Sherman , Catherine R. Condie , Trenton J. Rehberger , Steven J. Fraasch , Mark T. Stewart
IPC分类号： A61B18/14 , A61B5/00 , A61B5/283 , A61B5/304 , A61B17/00 , A61B18/00 , A61B18/02 , A61B18/12 , A61B34/20 , A61B90/00
CPC分类号： A61B18/1492 , A61B5/283 , A61B5/304 , A61B5/6852 , A61B18/1233 , A61B2017/00044 , A61B2018/0016 , A61B2018/00357 , A61B2018/00577 , A61B2018/00875 , A61B18/0206 , A61B2018/0212 , A61B2018/124 , A61B2018/128 , A61B2018/1407 , A61B2018/1467 , A61B2034/2053 , A61B2090/062
摘要： Methods and systems for combining ablation therapy with navigation of the ablation device. An ablation system may be configured for use with one of two methods to prevent loss of navigation signals during ablation energy delivery. In the first method, ablation energy signals are filtered from the navigation signal. In the second method, the delivery of ablation energy is sequenced with the delivery of navigation energy such that ablation energy and navigation energy are not delivered at the same time and navigation signals received by the system are time-division multiplexed to reconstruct the navigation signals and determine a location of the device within the patient.
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公开(公告)号：US11918280B2
公开(公告)日：2024-03-05
申请号：US16904692
申请日：2020-06-18
发明人： Marshall L. Sherman , Catherine R. Condie , Trenton J. Rehberger , Steven J. Fraasch , Mark T. Stewart
IPC分类号： A61B18/14 , A61B5/00 , A61B5/283 , A61B5/304 , A61B17/00 , A61B18/00 , A61B18/02 , A61B18/12 , A61B34/20 , A61B90/00
CPC分类号： A61B18/1492 , A61B5/283 , A61B5/304 , A61B5/6852 , A61B18/1233 , A61B2017/00044 , A61B2018/0016 , A61B2018/00357 , A61B2018/00577 , A61B2018/00875 , A61B18/0206 , A61B2018/0212 , A61B2018/124 , A61B2018/128 , A61B2018/1407 , A61B2018/1467 , A61B2034/2053 , A61B2090/062
摘要： Methods and systems for combining ablation therapy with navigation of the ablation device. An ablation system may be configured for use with one of two methods to prevent loss of navigation signals during ablation energy delivery. In the first method, ablation energy signals are filtered from the navigation signal. In the second method, the delivery of ablation energy is sequenced with the delivery of navigation energy such that ablation energy and navigation energy are not delivered at the same time and navigation signals received by the system are time-division multiplexed to reconstruct the navigation signals and determine a location of the device within the patient.
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