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    • 6. 发明申请
    • PHOTODYNAMIC-BASED TISSUE SENSING DEVICE AND METHOD
    • 基于光电动力的组织感测装置和方法
    • WO2009079626A8
    • 2010-06-17
    • PCT/US2008087426
    • 2008-12-18
    • ST JUDE MEDICAL ATRIAL FIBRILLPAUL SAURAVBYRD ISRAEL
    • PAUL SAURAVBYRD ISRAEL
    • A61B8/12A61B5/103
    • A61N5/062A61B5/0084A61N5/0601
    • A system and method for diagnosis or treatment of tissue is provided. One or more optic fibers are disposed within a deformable, tubular body. An electronic control unit activates an electromagnetic radiation source to direct a first set of electromagnetic radiation through a first optic fiber to the tissue. The unit also receives a signal generated by an electromagnetic radiation sensor in response to a second set of electromagnetic radiation received through the first optic or a second fiber. The second set of electromagnetic radiation originates from the tissue in response to the first set of electromagnetic radiation and may be reflected or emitted by a substance contained in the tissue that alters radiation characteristics of the tissue. Finally, the unit is configured to determine a characteristic of the tissue (e.g. the distance from the tissue to the tubular body) responsive to the signal.
    • 提供了用于诊断或治疗组织的系统和方法。 一个或多个光纤设置在可变形的管状体内。 电子控制单元激活电磁辐射源以将第一组电磁辐射通过第一光纤引导到组织。 该单元还响应于通过第一光学器件或第二光纤接收的第二组电磁辐射,接收由电磁辐射传感器产生的信号。 第二组电磁辐射响应于第一组电磁辐射而从组织起源,并且可以由组织中包含的改变组织辐射特性的物质反射或发射。 最后,单元被配置为响应于该信号来确定组织的特征(例如,从组织到管状体的距离)。
    • 8. 发明申请
    • DESIGN OF ABLATION ELECTRODE WITH TACTILE SENSOR
    • 消除电极与触觉传感器的设计
    • WO2008083123A1
    • 2008-07-10
    • PCT/US2007/088729
    • 2007-12-21
    • ST. JUDE MEDICAL, ATRIAL FIBRILLATION DIVISION, INC.CAO, HongTHAO, ChouPAUL, Saurav
    • CAO, HongTHAO, ChouPAUL, Saurav
    • A61B5/04
    • A61B18/1492A61B5/6852A61B5/6885A61B2090/065
    • A catheter assembly for assessing contact between the catheter assembly and tissue is disclosed. The assembly includes a catheter shaft and a pressure sensitive conductive composite member whose electrical resistance varies with pressure applied to the catheter assembly. The assembly also includes at least one measurement terminal to permit the measurement of changes in the electrical characteristics of the pressure sensitive conductive composite member. The assembly may optionally include a measurement device to measure resistance, impedance and/or other electrical characteristics. The assembly may utilize a reference electrode secured to the patient's tissue, which permits the measurement device to measure changes between the reference electrode and the at least one measurement terminal. Optionally, the assembly may include a conductive outer layer. Also disclosed are sensor assemblies, contact sensor, methods of contact sensing, and methods of manufacturing relating to the use of pressure sensitive conductive composites.
    • 公开了一种用于评估导管组件和组织之间的接触的导管组件。 组件包括导管轴和压力敏感的导电复合构件,其电阻随着施加到导管组件的压力而变化。 组件还包括至少一个测量端子,以允许测量压敏导电复合构件的电特性的变化。 组件可以可选地包括测量电阻,阻抗和/或其他电特性的测量装置。 组件可以利用固定到患者组织的参考电极,其允许测量装置测量参考电极和至少一个测量终端之间的变化。 可选地,组件可以包括导电外层。 还公开了传感器组件,接触传感器,接触感测方法以及与使用压敏导电复合材料有关的制造方法。