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    • 4. 发明授权
    • Implantable medical device for measuring mechanical heart function
    • 用于测量机械心脏功能的植入式医疗设备
    • US06959214B2
    • 2005-10-25
    • US09996138
    • 2001-11-28
    • Forrest C. M. PapePaul J. Huelskamp
    • Forrest C. M. PapePaul J. Huelskamp
    • A61N1/362A61N1/365
    • A61N1/36514A61N1/3627
    • An implantable device for measuring mechanical heart function of selected heart chambers using a heart contraction detection system that includes a magnetic field sensor. The system may be used for monitoring signs of acute or chronic cardiac heart failure, to enable diagnosis of the condition of the heart, to prescribe appropriate therapies, and to assess delivered pacing therapies. Distance measurements within the heart are made using the magnetic field sensor which is implanted at a sensor site in or on one of the right or left ventricle. A magnet implanted at a site relative to the other of the left or right heart ventricle is sufficiently spaced at a distance that fluctuates with expansion and contraction of the ventricles. The magnetic field sensor provides a sensor output signal having a signal magnitude proportional to the magnetic field strength of the magnet, and which is indicative of changing cardiac dimensions.
    • 一种用于使用包括磁场传感器的心脏收缩检测系统来测量所选择的心室的机械心脏功能的可植入装置。 该系统可以用于监测急性或慢性心脏衰竭的迹象,以便能够诊断心脏的状况,开出适当的治疗方法,以及评估发放的起搏疗法。 心脏内的距离测量使用植入在右心室或左心室中的一个传感器位置的磁场传感器来进行。 植入在相对于左心室或右心室另一个的位置处的磁体在与心室的扩张和收缩波动的距离处充分间隔开。 磁场传感器提供具有与磁体的磁场强度成比例的信号幅度的传感器输出信号,并且其指示改变心脏尺寸。
    • 5. 发明授权
    • Error code calculations for data stored in an implantable medical device
    • 存储在可植入医疗设备中的数据的错误代码计算
    • US6128528A
    • 2000-10-03
    • US271123
    • 1999-03-18
    • James H. EricksenCarl A. SchuVincent E. SplettPaul J. Huelskamp
    • James H. EricksenCarl A. SchuVincent E. SplettPaul J. Huelskamp
    • A61N1/37A61N1/372A61N1/39A61N1/36
    • A61N1/37A61N1/3706A61N1/3956
    • A cyclic redundancy code (CRC) and optionally a syndrome value calculation of one or more implantable medical device (IMD) data block is conducted by block mover/reader hardware of the IMD when the data block(s) are moved and/or read. In the block read operation, each data byte or word in the block mover data register is read in a first clock cycle. In the block move operation, each data byte is read in the first clock cycle in this way and then moved to a destination register in a second clock cycle. The data CRC and optionally the syndrome value accumulate in the CRC and syndrome registers as all data bytes of the data block(s) are read in the first clock cycle. When the last data byte or word of the data block(s) is sequentially read (and moved in the block move operation), the accumulated data CRC and syndrome value are either stored as the associated data CRC and optional syndrome value or are used for comparison with a previously stored data CRC and optional syndrome value associated with the data block(s) in the comparison operation to determine if the data block(s) is corrupted.
    • 当数据块被移动和/或读取时,循环冗余码(CRC)和可选的一个或多个可植入医疗设备(IMD)数据块的综合征值计算由IMD的块移动器/读取器硬件进行。 在块读取操作中,在第一个时钟周期中读取块移动器数据寄存器中的每个数据字节或字。 在块移动操作中,以这种方式在第一个时钟周期读取每个数据字节,然后在第二个时钟周期内移动到目标寄存器。 在第一个时钟周期中读取数据块的所有数据字节,CRC和校验子寄存器中的数据CRC和可选的校正子值累积。 当数据块的最后一个数据字节或字被顺序读取(并在块移动操作中移动)时,累积数据CRC和校正子值被存储为相关数据CRC和可选校验值,或者用于 与先前存储的数据CRC和与比较操作中的数据块相关联的可选校验值进行比较,以确定数据块是否被破坏。
    • 10. 发明申请
    • PHYSIOLOGICAL BLOOD PRESSURE WAVEFORM COMPRESSION IN AN ACOUSTIC CHANNEL
    • 声学通道中的生理血压波形压缩
    • US20110082376A1
    • 2011-04-07
    • US12854703
    • 2010-08-11
    • Paul J. HuelskampJoseph E. BangeJon N. Peterson
    • Paul J. HuelskampJoseph E. BangeJon N. Peterson
    • A61B5/0215G06F19/00G06F11/07
    • A61B5/0002A61B5/02108A61B5/0215A61B5/7203A61B5/7232H04L1/0057H04L1/0065
    • Methods, systems and devices for processing blood pressure measurements are disclosed. An illustrative method includes transmitting a command to an implantable medical device including a blood pressure sensor. The method includes receiving a response from the implantable medical device, the response indicating that the device initiated the sensing of blood pressure measurements. The method includes receiving one or more data packets from the implantable medical device. The one or more data packets can include a base pressure measurement that is representative of a starting point of a blood pressure waveform. The one or more data packets further include a delta value measurement representative of a difference between another blood pressure measurement and the base pressure measurement, or a difference between a current measurement and one or more previous measurements. Additionally, the method includes generating a pressure waveform from the one or more data packets.
    • 公开了用于处理血压测量的方法,系统和装置。 一种说明性方法包括将命令发送到包括血压传感器的可植入医疗装置。 该方法包括从可植入医疗装置接收响应,该响应指示该装置启动对血压测量的感测。 该方法包括从可植入医疗装置接收一个或多个数据分组。 一个或多个数据分组可以包括代表血压波形起始点的基础压力测量。 一个或多个数据分组还包括代表另一个血压测量和基础压力测量之间的差异的增量值测量值,或当前测量值与一个或多个先前测量值之间的差值。 此外,该方法包括从一个或多个数据分组产生压力波形。