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48 条记录 (耗时 0.056 秒)

    METHOD AND APPARATUS FOR POST-SHOCK EVALUATION USING TISSUE OXYGENATION MEASUREMENTS
    6.
    发明公开
    METHOD AND APPARATUS FOR POST-SHOCK EVALUATION USING TISSUE OXYGENATION MEASUREMENTS 有权
    设备技术评估由SHOCK使用GEWEBEOXYGENIERUNGSMESSUNGEN

    公开(公告)号：EP2475425A1

    公开(公告)日：2012-07-18

    申请号：EP10752247.6

    申请日：2010-09-01

    申请人： Medtronic, Inc

    发明人： KUHN, Jonathan L. ,  CINBIS, Can ,  ANDERSON, David A. ,  HAVEL, William J.

    IPC分类号： A61N1/39 ,  A61B5/00

    CPC分类号： A61B5/14551 ,  A61B5/1459 ,  A61B5/6846 ,  A61B5/7285 ,  A61N1/36557 ,  A61N1/3925 ,  A61N1/3956

    摘要： A method and device for delivering therapy that includes an electrode to sense cardiac signals and to deliver a therapy, a therapy delivery module coupled to the electrode to deliver a therapy via the electrode in response to the sensed cardiac signals, a sensor emitting light and detecting emitted light scattered by a tissue volume adjacent the sensor to generate a corresponding detected light intensity output signal, a control module coupled to the sensor to control light emission of the sensor in response to delivering the therapy; and a controller coupled to the therapy delivery module and the sensor, the controller configured to determine a tissue oxygenation measurement in response to the output signal, and determine whether the delivered therapy was successful in restoring cardiac hemodynamic function in response to the tissue oxygenation measurement.

    METHOD AND APPARATUS FOR USING AN OPTICAL HEMODYNAMIC SENSOR TO IDENTIFY AN UNSTABLE ARRHYTHMIA
    7.
    发明公开
    METHOD AND APPARATUS FOR USING AN OPTICAL HEMODYNAMIC SENSOR TO IDENTIFY AN UNSTABLE ARRHYTHMIA 有权
    设备以使用并不稳定心律失常的光学传感器血流动力学鉴定

    公开(公告)号：EP2001356A2

    公开(公告)日：2008-12-17

    申请号：EP07758432.4

    申请日：2007-03-13

    申请人： Medtronic, Inc.

    发明人： BHUNIA, Sourav ,  OLSON, Walter H. ,  CINBIS, Can

    IPC分类号： A61B5/00 ,  A61N1/365

    CPC分类号： A61B5/14542 ,  A61B5/1459 ,  A61N1/3621 ,  A61N1/36557 ,  A61N1/3956

    摘要： A medical device identifies a hemodynamically unstable arrhythmia based upon optical hemodynamic sensor signals. The optical hemodynamic sensor includes a light source for transmitting light corresponding to first and second wavelengths through a blood perfused tissue of a patient and a light detector for generating optical signals corresponding to an intensity of the detected light at the first and second wavelengths. At a low motion period for the patient, optical signals are obtained from the optical hemodynamic sensor and are analyzed to determine a baseline motion level for the patient. Subsequent signals obtained from the optical hemodynamic sensor are compared to the baseline motion levels, with only those signals corresponding to periods where motion does not exceed the baseline level of motion being further analyzed to determine if they are consistent with a hemodynamically unstable arrhythmia.

    COEFFICENT DETERMINATION FOR TOTAL HEMOGLOBIN CONCENTRATION INDICES
    8.
    发明授权
    COEFFICENT DETERMINATION FOR TOTAL HEMOGLOBIN CONCENTRATION INDICES 有权
    全血红蛋白浓度指数的系数确定

    公开(公告)号：EP2640266B1

    公开(公告)日：2018-04-18

    申请号：EP11791108.1

    申请日：2011-11-09

    申请人： Medtronic, Inc.

    发明人： KUHN, Jonathan L. ,  CINBIS, Can ,  ANDERSON, David A. ,  CARNEY, James K.

    IPC分类号： A61B5/1495 ,  A61B5/1455 ,  A61B5/1459

    CPC分类号： A61B5/1459 ,  A61B5/0075 ,  A61B5/14535 ,  A61B5/14542 ,  A61B5/14551 ,  A61B5/1495 ,  A61B5/4836

    摘要： A first concentration of a chromophore corresponding to a measurement volume of an optical sensor is determined. A second concentration of the chromophore is obtained in the vicinity of the measurement volume corresponding to a change in at least one of a total concentration of the chromophore and a relative concentration of a first form of the chromophore to the total concentration of the chromophore in the measurement volume. Light remittance measurements including a first light wavelength and a second light wavelength are obtained corresponding to the first chromophore concentration and the second chromophore concentration. A coefficient for computing an index of a change in the chromophore concentration is computed using the difference between the first and second chromophore concentrations and the first and second light remittance measurements.