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公开(公告)号：US11478300B2
公开(公告)日：2022-10-25
申请号：US16678475
申请日：2019-11-08
Inventor： Huisun Wang , Jeremy D. Dando , Dale E. Just , Allen P. Moore
Abstract: The present invention pertains to multiple piece irrigated ablation electrode assemblies wherein the irrigation channels are insulated or separated from at least one temperature sensing mechanism within the distal portion of the electrode assembly. The present invention further pertains to methods for improved assembly and accurate measurement and control of the electrode temperatures while effectively irrigating the device and target areas.
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公开(公告)号：US09610119B2
公开(公告)日：2017-04-04
申请号：US14087991
申请日：2013-11-22
Inventor： Jeffrey M. Fish , Israel A. Byrd , Lynn E. Clark , Jeremy D. Dando , Christopher J. Geurkink , Harry A. Puryear , Saurav Paul
IPC: A61B18/10 , A61B18/14 , A61B5/00 , A61B5/01 , A61B5/053 , A61B5/107 , A61B5/0402 , A61B5/042 , A61B18/12 , A61B18/00 , A61B18/02 , A61B34/30 , A61B90/00
CPC classification number: A61B18/1492 , A61B5/0084 , A61B5/01 , A61B5/0402 , A61B5/042 , A61B5/0538 , A61B5/1076 , A61B5/1079 , A61B5/4836 , A61B5/742 , A61B18/1233 , A61B18/14 , A61B2018/00178 , A61B2018/00351 , A61B2018/00714 , A61B2018/00738 , A61B2018/00779 , A61B2018/00875 , A61B2018/0212 , A61B2034/301 , A61B2090/065 , A61B2218/002
Abstract: A method and system for assessing lesion formation in tissue is provided. The system includes an electronic control unit (ECU) configured to acquire magnitudes for a component of a complex impedance between an electrode and tissue, and the power applied to the tissue during lesion formation. The ECU is configured to calculate a value responsive to the complex impedance component and the power. The value is indicative of a predicted lesion depth, a likelihood the lesion has reached a predetermined depth, or a predicted tissue temperature. The method includes acquiring magnitudes for a component of a complex impedance between an electrode and tissue and the power applied during lesion formation. The method includes calculating a value responsive to the complex impedance component and the power, the value being indicative of a predicted lesion depth, a likelihood the lesion has reached a predetermined depth, and/or a predicted tissue temperature.
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公开(公告)号：US20170086920A1
公开(公告)日：2017-03-30
申请号：US15377764
申请日：2016-12-13
Inventor： Huisun Wang , Hong Cao , Jeremy D. Dando
IPC: A61B18/14
CPC classification number: A61B18/1492 , A61B18/14 , A61B2018/00011 , A61B2018/00023 , A61B2018/00577 , A61B2018/00797 , A61B2018/00815 , A61B2018/00821 , Y10T29/49117
Abstract: The invention relates to electrodes used in ablation catheter devices, where the electrodes contain two or more thermal sensors at different positions within the electrode that are capable of detecting temperature differences along the external surface of the electrode. In preferred embodiments, the thermal sensors are separated by one or more thermal insulating members and the thermal sensors are positioned near the external surface of the electrode at about the same distance from the end of the electrode, so that temperature measurements can indicate the position of the electrode with respect to the tissue desired to be ablated.
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Patent Agency Ranking
公开(公告)号：US20170065348A1
公开(公告)日：2017-03-09
申请号：US15275530
申请日：2016-09-26
Inventor： Jeffrey M. Fish , Israel A. Byrd , Jeremy D. Dando
CPC classification number: A61B34/10 , A61B18/1233 , A61B18/14 , A61B18/1492 , A61B34/25 , A61B34/73 , A61B2017/00084 , A61B2017/00256 , A61B2018/00178 , A61B2018/00577 , A61B2018/00702 , A61B2018/00791 , A61B2018/00803 , A61B2018/00875 , A61B2018/00886 , A61B2034/104 , A61B2034/105 , A61B2034/301 , A61B2090/062 , A61B2090/065 , G06F19/00
Abstract: A system for displaying characteristics of target tissue during an ablation procedure is provided that includes an electronic control unit (ECU) configured to receive data regarding electrical properties of the target tissue for a time period. The ECU is also configured to determine a value responsive to the data and indicative of at least one of a predicted depth of a lesion in the target tissue, a predicted temperature of the target tissue, and a likelihood of steam pop of the target tissue for the time period. The system further includes a display device operatively connected to the ECU. The display device is configured to receive the value and display a visual representation indicative of at least one of a predicted depth of a lesion in the target tissue, a predicted temperature of the target tissue, and a likelihood of steam pop of the target tissue for the time period.
Abstract translation: 提供了一种用于在消融过程期间显示目标组织的特征的系统，其包括被配置为在一段时间内接收关于目标组织的电特性的数据的电子控制单元（ECU）。 ECU还被配置为确定响应于数据并指示目标组织中病变的预测深度，目标组织的预测温度和目标组织的蒸汽弹出的可能性中的至少一个的值， 时间段 该系统还包括可操作地连接到ECU的显示装置。 显示装置被配置为接收该值并显示指示目标组织中病变的预测深度，目标组织的预测温度和目标组织的蒸汽弹出的可能性中的至少一个的视觉表示，用于 时间段
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15.发明授权Ablation catheter electrode having multiple thermal sensors and method of use 有权消融导管电极具有多个热传感器和使用方法公开(公告)号：US08845633B2
公开(公告)日：2014-09-30
申请号：US13913613
申请日：2013-06-10
Inventor： Huisun Wang , Hong Cao , Jeremy D. Dando
CPC classification number: A61B18/1492 , A61B18/14 , A61B2018/00011 , A61B2018/00023 , A61B2018/00577 , A61B2018/00797 , A61B2018/00815 , A61B2018/00821 , Y10T29/49117
Abstract: The invention relates to electrodes used in ablation catheter devices, where the electrodes contain two or more thermal sensors at different positions within the electrode that are capable of detecting temperature differences along the external surface of the electrode. In preferred embodiments, the thermal sensors are separated by one or more thermal insulating members and the thermal sensors are positioned near the external surface of the electrode at about the same distance from the end of the electrode, so that temperature measurements can indicate the position of the electrode with respect to the tissue desired to be ablated.
Abstract translation: 本发明涉及消融导管装置中使用的电极，其中电极在电极内的不同位置包含能够检测沿着电极外表面的温度差的两个或多个热传感器。 在优选实施例中，热传感器被一个或多个绝热构件隔开，并且热传感器位于与电极端部大约相同距离处的电极的外表面附近，使得温度测量可以指示位置 电极相对于希望烧蚀的组织。
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公开(公告)号：US20140257282A1
公开(公告)日：2014-09-11
申请号：US14204598
申请日：2014-03-11
Inventor： Huisun Wang , Jeremy D. Dando , Hong Cao
IPC: A61B18/14
CPC classification number: A61B18/1492 , A61B2018/00011 , A61B2018/00029 , A61B2018/00577 , A61B2218/002
Abstract: The invention relates to an ablation catheter which controls the temperature and reduces the coagulation of biological fluids on an electrode of a catheter, prevents the impedance rise of tissue in contact with the electrode, and maximizes the potential energy transfer to the tissue, thereby allowing an increase in the lesion size produced by the ablation. The electrode includes passages positioned to allow saline flow out of an inner cavity of the electrode. This fluid flow is pulsatile to increase turbulence, reducing areas of stagnant flow, and produces a desired cooling effect.
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公开(公告)号：US10912607B2
公开(公告)日：2021-02-09
申请号：US15489608
申请日：2017-04-17
Inventor： Huisun Wang , Jeremy D. Dando , Hong Cao
Abstract: The invention relates to an ablation catheter which controls the temperature and reduces the coagulation of biological fluids on an electrode of a catheter, prevents the impedance rise of tissue in contact with the electrode, and maximizes the potential energy transfer to the tissue, thereby allowing an increase in the lesion size produced by the ablation. The electrode includes passages positioned to allow saline flow out of an inner cavity of the electrode. This fluid flow is pulsatile to increase turbulence, reducing areas of stagnant flow, and produces a desired cooling effect.
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公开(公告)号：US10201388B2
公开(公告)日：2019-02-12
申请号：US15275530
申请日：2016-09-26
Inventor： Jeffrey M. Fish , Israel A. Byrd , Jeremy D. Dando
Abstract: A system for displaying characteristics of target tissue during an ablation procedure is provided that includes an electronic control unit (ECU) configured to receive data regarding electrical properties of the target tissue for a time period. The ECU is also configured to determine a value responsive to the data and indicative of at least one of a predicted depth of a lesion in the target tissue, a predicted temperature of the target tissue, and a likelihood of steam pop of the target tissue for the time period. The system further includes a display device operatively connected to the ECU. The display device is configured to receive the value and display a visual representation indicative of at least one of a predicted depth of a lesion in the target tissue, a predicted temperature of the target tissue, and a likelihood of steam pop of the target tissue for the time period.
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