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    Method and apparatus for determining a respiration parameter in a medical device
    22.
    发明授权
    Method and apparatus for determining a respiration parameter in a medical device 有权
    用于确定医疗装置中的呼吸参数的方法和装置

    公开(公告)号：US08372013B2

    公开(公告)日：2013-02-12

    申请号：US12262285

    申请日：2008-10-31

    申请人： Maneesh Shrivastav ,  Yong K. Cho ,  Tommy D. Bennett ,  Mark K. Erickson ,  Saul E. Greenhut ,  Karen J. Kleckner ,  Charles P. Sperling

    发明人： Maneesh Shrivastav ,  Yong K. Cho ,  Tommy D. Bennett ,  Mark K. Erickson ,  Saul E. Greenhut ,  Karen J. Kleckner ,  Charles P. Sperling

    IPC分类号： A61B5/0205 ,  A61B5/08

    CPC分类号： A61B5/6846 ,  A61B5/0031 ,  A61B5/0205 ,  A61B5/0215 ,  A61B5/0816 ,  A61B5/4818 ,  A61N1/36514 ,  A61N1/3702 ,  A61N1/37258

    摘要： A method of determining a respiration parameter in a medical device in which pressure signals are sensed to generate corresponding sample points, and a breath detection threshold is continuously adjusted in response to the generated sample points to generate a current adjusted breath detection threshold. A current generated sample point is compared to the current adjusted breath detection threshold, and the continuous adjusting of the breath detection threshold is suspended and the breath detection threshold is equal to the most current adjusted breath detection threshold generated prior to the suspending in response to the comparing. A next sample point, generated subsequent to the suspending, is compared to the set breath detection threshold, and the respiration parameter is determined in response to the comparing of a next sample point to the set breath detection threshold.

    摘要翻译： 一种确定医疗装置中的呼吸参数的方法，其中感测压力信号以产生相应的采样点，并且响应于所产生的采样点连续地调整呼吸检测阈值以产生当前调节的呼吸检测阈值。 将当前生成的采样点与当前调节的呼吸检测阈值进行比较，并且暂停呼吸检测阈值的连续调整，并且呼吸检测阈值等于响应于该呼吸检测阈值之前产生的最新调整的呼吸检测阈值 比较。 将在悬挂之后产生的下一采样点与设定的呼吸检测阈值进行比较，并且响应于下一采样点与设定的呼吸检测阈值的比较来确定呼吸参数。

    Posture and device orientation and calibration for implantable medical devices
    25.
    发明授权
    Posture and device orientation and calibration for implantable medical devices 有权
    植入式医疗设备的姿势和设备定向和校准

    公开(公告)号：US6044297A

    公开(公告)日：2000-03-28

    申请号：US160647

    申请日：1998-09-25

    申请人： Todd J. Sheldon ,  William J. Combs ,  Mark K. Erickson ,  Can Cinbis

    发明人： Todd J. Sheldon ,  William J. Combs ,  Mark K. Erickson ,  Can Cinbis

    IPC分类号： A61N1/365 ,  A61N1/362

    CPC分类号： A61N1/36542 ,  A61N1/36535

    摘要： A method of and apparatus for determining the physical posture of a patient's body, having a superior-inferior body axis, an anterior-posterior body axis and a lateral-medial body axis, in relation to earth's gravitational field. A medical device having first, second and, optionally, third accelerometers having sensitive axes mounted orthogonally within an implantable housing is adapted to be implanted with the sensitive axes nominally aligned with ideal X, Y and Z device axes correlated to patient body axes. Each accelerometer generates DC accelerometer signals having characteristic magnitudes and polarities on alignment of the sensitive axis with, against or normal to earth's gravitational field and DC accelerometer signals of varying magnitudes and polarities when not so aligned. The actual pitch and roll angles of the sensitive axes of the accelerometers in the implanted IMD with respect to the true gravitational axes are determined and the yaw angles are determined or estimated. Corrected DC accelerometer output signals are derived from the pitch, roll and yaw angles and are compared to a set of stored thresholds for each body posture to determine the actual body posture. Storage of these comparisons or the raw signals themselves can be used for histogram data to provide theraputic or research benefits also described.

    摘要翻译： 一种用于确定患者身体的物理姿势的方法和装置，其具有相对于地球重力场的上下身体轴线，前后身体轴线和侧向内侧身体轴线。 具有第一，第二和第三加速度计的医疗设备具有正交安装在可植入的外壳内的敏感轴，适于植入与名义上与理想的与患者体轴相关的X，Y和Z装置轴对准的敏感轴。 每个加速度计产生具有特征幅度和极性的特征幅度和极性的直流加速度计信号，当不对准时，敏感轴对准或反对或垂直于地球重力场和具有不同幅度和极性的直流加速度计信号。 确定和估计在植入的IMD中相对于真重力轴的加速度计的敏感轴的实际俯仰角和倾斜角，并且确定或估计偏航角。 校正的直流加速度计输出信号是从俯仰角，偏转角和偏航角度得出的，并且与每个身体姿势的一组存储的阈值进行比较，以确定实际的身体姿势。 这些比较或原始信号本身的存储可用于直方图数据，以提供还描述的治疗或研究益处。