Pressure sensor
    31.
    发明授权
    Pressure sensor 失效
    压力传感器

    公开(公告)号:US5450853A

    公开(公告)日:1995-09-19

    申请号:US141134

    申请日:1993-10-22

    IPC分类号: A61B5/0215 A61M25/00

    摘要: A pressure sensor having a tubular member partially filled with a ferrofluid column and partially filled with air, with an electrically conductive coil wrapped around the tubular member. When in use, the coil has alternating current running therethrough and the voltage across the coil is monitored. Physiologic pressure variations result in proportional variations in the position of the ferrofluid/air interface relative to the coil. This results in proportional changes in the coil voltage due to the change in coil inductance. The pressure sensor is compact and can be incorporated into many devices including a guide wire.

    摘要翻译: 一种压力传感器,其具有部分地填充有铁磁流体柱并部分地填充有空气的管状构件,其中导电线圈缠绕在管状构件上。 在使用中,线圈具有贯穿其中的交流电,并且监测线圈两端的电压。 生理压力变化导致铁磁流体/空气界面相对于线圈的位置的比例变化。 这导致线圈电压由于线圈电感的变化而成比例的变化。 压力传感器紧凑,可以并入包括导丝的许多装置中。

    Electrical stimulation of body tissue using interconnected electrode assemblies
    35.
    发明授权
    Electrical stimulation of body tissue using interconnected electrode assemblies 有权
    使用互连的电极组件对身体组织进行电刺激

    公开(公告)号:US08290600B2

    公开(公告)日:2012-10-16

    申请号:US11490576

    申请日:2006-07-21

    IPC分类号: A61N1/00

    摘要: Some embodiments of a cardiac stimulation system may include a plurality of electrode assemblies that are interconnected by one or more wires while at least one of the electrode assemblies (e.g., a control electrode) wirelessly receives energy through inductive coupling with a power communication unit external to the heart (e.g., a device implanted along one or more ribs). These embodiments may provide an arrangement for efficient inductive coupling from the power communication unit to the control electrode. Also, in some circumstances, the cardiac stimulation system may eliminate the need for wired leads that extend to a location outside the heart, thereby reducing the likelihood of infection that passes along the wire and into the heart.

    摘要翻译: 心脏刺激系统的一些实施例可以包括通过一个或多个线互连的多个电极组件,而电极组件(例如,控制电极)中的至少一个通过与外部的电力通信单元的电感耦合无线地接收能量 心脏(例如,沿一个或多个肋植入的装置)。 这些实施例可以提供用于从电力通信单元到控制电极的有效电感耦合的布置。 此外,在某些情况下,心脏刺激系统可以消除对延伸到心脏外部的位置的有线引线的需要,从而减少沿导线进入心脏的感染的可能性。