-
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.
-
公开(公告)号：US09474566B2
公开(公告)日：2016-10-25
申请号：US14076400
申请日：2013-11-11
Inventor： Saurav Paul , Riki Thao , Hong Cao , Kedar Ravindra Belhe
CPC classification number: A61B18/14 , A61B18/16 , A61B2018/00577 , A61N1/0464 , A61N1/05
Abstract: An electrode head is disclosed that utilizes electrically conductive or dissipative fabric to exchange electrical energy with tissue. This electrode head may be used for any appropriate application, such as a catheter electrode, a return electrode, or the like. Any appropriate function may be provided by this electrode head, such as tissue ablation, tissue mapping, or providing an electrical ground.
Abstract translation: 公开了一种使用导电或耗散织物以与组织交换电能的电极头。 该电极头可用于任何适当的应用，例如导管电极，返回电极等。 可以通过该电极头提供任何适当的功能，例如组织消融，组织贴图或提供电接地。
-
公开(公告)号：US20160256682A1
公开(公告)日：2016-09-08
申请号：US15064664
申请日：2016-03-09
Inventor： Saurav Paul , Troy T. Tegg , Israel A. Byrd , Riki Thao , Harry A. Puryear , Linda Nemec , John M. Berns
Abstract: Catheter systems include direction-sensitive, multi-polar tip electrode assemblies for electroporation-mediated therapy, electroporation-induced primary necrosis therapy and electric field-induced apoptosis therapy, including configurations for producing narrow, linear lesions as well as distributed, wide area lesions. A monitoring system for electroporation therapy includes a mechanism for delivering electrochromic dyes to a tissue site as well as a fiber optic arrangement to optically monitor the progress of the therapy as well as to confirm success post-therapy. A fiber optic temperature sensing electrode catheter includes a tip electrode having a cavity whose inner surface is impregnated or coated with thermochromic/thermotropic material that changes color with changes in temperature. An optic fiber/detector arrangement monitors the thermochromic or thermotropic materials, acquiring a light signal and generating an output signal indicative of the spectrum of the light signal. An analyzer determines an electrode temperature based on the detector output and predetermined spectrum versus temperature calibration data.
Abstract translation: 导管系统包括用于电穿孔介导治疗的方向敏感的多极尖端电极组件，电穿孔诱导的原发性坏死治疗和电场诱导的凋亡治疗，包括用于产生狭窄的线性损伤以及分布的广泛区域损伤的构造。 用于电穿孔治疗的监测系统包括将电致变色染料递送到组织部位的机制以及光学配置以光学监测治疗进展以及确认疗法后的成功。 光纤温度感测电极导管包括具有腔体的尖端电极，其内表面被浸渍或涂覆有随着温度变化而改变颜色的热变色/热致变色材料。 光纤/检测器装置监测热致变色或热致变色材料，获取光信号并产生指示光信号光谱的输出信号。 分析仪基于检测器输出和预定的频谱对温度校准数据来确定电极温度。
-
公开(公告)号：US20160144162A1
公开(公告)日：2016-05-26
申请号：US14948645
申请日：2015-11-23
Inventor： Arthur G. Erdman , Saurav Paul , Troy T. Tegg
CPC classification number: A61M39/10 , A61B5/0084 , A61B5/065 , A61B5/1076 , A61B5/6852 , A61B5/6885 , A61B18/1492 , A61B18/24 , A61B2017/00057 , A61B2017/00084 , A61B2090/065 , A61M25/0043 , A61M25/0068 , A61M25/0069 , A61M25/007 , A61M25/0071 , A61M25/0074 , A61M25/01 , A61M25/0138 , A61M25/0141 , A61M2025/0002
Abstract: Coupler assemblies and methods are disclosed as the coupler assemblies may be used with a catheter. An exemplary coupler assembly includes a spherical linkage coupler for a catheter. The coupler comprises a first cylinder portion for connecting to a structure, and a second cylinder portion for connecting to a distal end of a body of the catheter. The coupler also comprises a spherical linkage including at least two link arms. Each of the two link arms are connected on one end to the first cylinder portion and on the other end to the second cylinder portion. The two link arms connect a portion of the structure to the distal end of the catheter and enable the structure to move relative to the distal end of the catheter in response to an external force exerted on the structure.
-
45.发明申请Design of handle set for ablation catheter with indicators of catheter and tissue parameters 审中-公开设计用于消融导管的手柄组，其具有导管和组织参数指示公开(公告)号：US20140364843A1
公开(公告)日：2014-12-11
申请号：US14279430
申请日：2014-05-16
Inventor： Saurav Paul , Ravindra Kedar Belhe , Hong Cao , Chou Thao , James A. Hassett
CPC classification number: A61B18/1206 , A61B18/1492 , A61B34/20 , A61B2018/00303 , A61B2018/00357 , A61B2018/00577 , A61B2018/00642 , A61B2018/00666 , A61B2018/00702 , A61B2018/0075 , A61B2018/00755 , A61B2018/00869 , A61B2018/00875 , A61B2090/064 , A61B2090/065
Abstract: An electrode coupling output system provides indication to the physician, via electrode guidance instrumentation, concerning the electrical coupling of an electrode, such as an ablative or mapping electrode, with a patient. The output can be provided to the physician via an output device incorporated into the handle set of the electrode catheter. For example, a visual, audio or mechanical output can be provided via the handle set. Additionally or alternatively, the output can be provided to the physician via a navigation system. The indication may be provided by changing the color or other display characteristics of the electrode on the navigation system display or by way of providing a waveform indicating the electrode coupling. In this manner, electrode coupling information is provided to a physician in a manner that minimizes physician distraction.
Abstract translation: 电极耦合输出系统通过电极引导仪器向医师提供关于电极（例如烧蚀或映射电极）与患者的电耦合的指示。 输出可以通过结合到电极导管的手柄组中的输出装置提供给医师。 例如，可以通过手柄组提供视觉，音频或机械输出。 另外或替代地，输出可以经由导航系统提供给医师。 可以通过改变导航系统显示器上的电极的颜色或其他显示特性或通过提供指示电极耦合的波形来提供指示。 以这种方式，电极耦合信息以最小化医师分心的方式提供给医师。
-
Patent Agency Ranking
公开(公告)号：US10688300B2
公开(公告)日：2020-06-23
申请号：US15064664
申请日：2016-03-09
Inventor： Saurav Paul , Troy T. Tegg , Israel A. Byrd , Riki Thao , Harry A. Puryear , Linda Nemec
Abstract: Catheter systems include direction-sensitive, multi-polar tip electrode assemblies for electroporation-mediated therapy, electroporation-induced primary necrosis therapy and electric field-induced apoptosis therapy, including configurations for producing narrow, linear lesions as well as distributed, wide area lesions. A monitoring system for electroporation therapy includes a mechanism for delivering electrochromic dyes to a tissue site as well as a fiber optic arrangement to optically monitor the progress of the therapy as well as to confirm success post-therapy. A fiber optic temperature sensing electrode catheter includes a tip electrode having a cavity whose inner surface is impregnated or coated with thermochromic/thermotropic material that changes color with changes in temperature. An optic fiber/detector arrangement monitors the thermochromic or thermotropic materials, acquiring a light signal and generating an output signal indicative of the spectrum of the light signal. An analyzer determines an electrode temperature based on the detector output and predetermined spectrum versus temperature calibration data.
-
公开(公告)号：US10335574B2
公开(公告)日：2019-07-02
申请号：US15723413
申请日：2017-10-03
Inventor： Troy T. Tegg , Saurav Paul
Abstract: A catheter system including an accelerometer-based sensing assembly is provided. In particular the present teachings relate to an accelerometer based assembly used to determine contact between a catheter and surrounding proximate tissue, such as cardiac tissue. An embodiment of such a system may, for example, be used for visualization, mapping, ablation, or other methods of diagnosis and treatment of tissue and/or surrounding areas.
-
公开(公告)号：US10194885B2
公开(公告)日：2019-02-05
申请号：US14369069
申请日：2012-10-02
Inventor： Israel A. Byrd , Jeffrey M. Fish , Lynn E. Clark , Saurav Paul
Abstract: A system that automatically detects a myocardial barotrauma (i.e., tissue pop) event so that proper post-procedure care can be given includes an electronic control unit (ECU), a computer-readable memory coupled with the ECU, and detection logic stored in the memory configured to be executed by the ECU. The detection logic is configured to receive a signal generated by an electro-acoustic transducer related to acoustic activity within the patient, monitor the signal for a pre-determined indication of a barotrauma event, and output a notification when the pre-determined indication is detected. The transducer can be integrated with an extra-body patch that includes one or more electrodes for use with a medical device navigation system.
-
公开(公告)号：US10182860B2
公开(公告)日：2019-01-22
申请号：US15013065
申请日：2016-02-02
Inventor： Saurav Paul , Hong Cao , Kedar R. Belhe , Riki Thao
Abstract: An electrode catheter and a method for assessing electrode-tissue contact and coupling are disclosed. An exemplary electrode catheter comprises an electrode adapted to apply electrical energy. A measurement circuit is adapted to measure impedance between the electrode and ground as the electrode approaches a target tissue. A processor determines a contact and coupling condition for the target tissue based at least in part on reactance of the impedance measured by the measurement circuit. In another exemplary embodiment, the electrode catheter determines the contact and coupling condition based at least in part on a phase angle of the impedance.
-
公开(公告)号：US20180154129A1
公开(公告)日：2018-06-07
申请号：US15821740
申请日：2017-11-22
Inventor： Saurav Paul , Troy T. Tegg , Reed R. Heimbecher , Richard E. Stehr , Riki Chou Thao
CPC classification number: A61M39/10 , A61B5/0084 , A61B5/042 , A61B5/061 , A61B5/065 , A61B5/1076 , A61B5/6852 , A61B5/6885 , A61B18/1492 , A61B18/24 , A61B2017/00057 , A61B2017/00084 , A61B2090/065 , A61M25/0043 , A61M25/0068 , A61M25/0069 , A61M25/007 , A61M25/0071 , A61M25/0074 , A61M25/01 , A61M25/0138 , A61M25/0141 , A61M2025/0002 , A61M2025/0166
Abstract: A contact sensing assembly including a catheter and an electrode including a tip portion and a base portion, and a generally central axis, with the electrode being connected to a distal end of the catheter. Optical sensor(s) may be provided for emitting and/or receiving an optical signal, with a part of the optical signal being transverse to the central axis. Optical interference member(s) may be provided for interfering with the optical signal. A method for sensing contact force exerted by an electrode on a tissue includes directing an optical signal along a portion of a catheter, emitting and/or receiving an optical signal, with a part of the optical signal being at a predetermined angle relative to the central axis, and sensing changes in intensity of the optical signal based on displacement associated with the electrode tip portion based on the contact force exerted by the electrode on the tissue.
-
-
-
-
-
-
-
-
-
Search Results
58
records
(took 0.023 seconds)
