公开(公告)号：US07840246B1

公开(公告)日：2010-11-23

申请号：US11282198

申请日：2005-11-17

申请人： John W. Poore

发明人： John W. Poore

IPC分类号： A61B5/1455

CPC分类号： A61B5/14542 ,  A61B5/14535 ,  A61B5/1459 ,  A61B5/1495

摘要： A measurement light detector detects light transmitted by a light source of an implantable system that is scattered back into an implantable housing, and produces a measurement signal indicative of the intensity of the light detected by the measurement light detector. A calibration light detector detects a portion of the transmitted light that has not exited the housing, and produces a calibration signal that is indicative of the intensity of the light detected by the calibration light detector, which is indicative of the intensity of the light transmitted by the light source. Changes in the intensity of the transmitted light are compensated for based on the calibration signal produced by the calibration light detector. This description is not intended to be a complete description of, or limit the scope of, the invention. Other features, aspects, and objects of the invention can be obtained from a review of the specification, the figures, and the claims.

摘要翻译： 测量光检测器检测由可植入系统的光源透射的光，其被散射回到可植入的壳体中，并且产生指示由测量光检测器检测到的光的强度的测量信号。 校准光检测器检测未离开壳体的透射光的一部分，并且产生指示由校准光检测器检测的光的强度的校准信号，该校准信号指示由光学器件发射的光的强度 光源。 基于由校准光检测器产生的校准信号来补偿透射光强度的变化。 本说明书不是对本发明的完整描述或限制本发明的范围。 本发明的其它特征，方面和目的可以通过对说明书，附图和权利要求的评述来获得。

公开(公告)号：US07200442B1

公开(公告)日：2007-04-03

申请号：US10938012

申请日：2004-09-10

申请人： Steve Koh ,  John W. Poore

发明人： Steve Koh ,  John W. Poore

IPC分类号： A61N1/08

CPC分类号： A61N1/36521

摘要： An implantable cardiac device having an impedance monitor has an impedance monitoring control. The impedance monitor includes a pulse generator that applies a current between a pair of implanted electrodes and an impedance measuring circuit that measures impedance across the implanted electrodes and provides an impedance signal during a present time that the pulse generator applies the current between the pair of implanted electrodes. The impedance monitoring control processes the impedance signal to provide impedance monitoring characteristic results and compares the results to preset standards. A control circuit varies the operating parameters of the impedance monitor responsive to the comparison of the impedance monitoring characteristic results to the present standards.

摘要翻译： 具有阻抗监视器的可植入心脏装置具有阻抗监视控制。 阻抗监视器包括脉冲发生器，其施加一对注入电极之间的电流和测量注入电极之间的阻抗的阻抗测量电路，并且在当前时间期间提供阻抗信号，脉冲发生器施加一对植入电流之间的电流 电极。 阻抗监测控制处理阻抗信号以提供阻抗监测特性结果，并将结果与​​预设标准进行比较。 响应于阻抗监测特性结果与本标准的比较，控制电路响应阻抗监视器的工作参数。