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21. 再颁专利

USRE35987E Output pulse compensation for therapeutic-type electronic devices 失效
标题翻译：治疗型电子设备的输出脉冲补偿
公开(公告)号：USRE35987E
公开(公告)日：1998-12-08
申请号：US385285
申请日：1995-02-08
申请人： Frank W. Harris , Alan R. Owens
发明人： Frank W. Harris , Alan R. Owens
IPC分类号： A61N1/08
CPC分类号： A61N1/08
摘要： Pulse compensation is disclosed for electronic devices capable of producing a pulse output signal suitable for therapeutic purposes with pulse compensation being automatically provided upon sensing of a change in she conditions being monitored. The electronic device, which preferably includes a microcomputer, has externally accessible pulse width and intensity controls for determining the width and amplitude of pulses then being delivered. Upon each sensing of a change in a monitored condition capable of causing user discomfort or possible injury, the intensity of the pulses then being delivered is quickly reduced and then gradually increased toward the full intensity requested by the intensity control. Pulse compensation is also provided when the pulse width is varied by the pulse width control to thereby automatically cause a corresponding change in the range of intensities of the pulses then delivered, based upon a nerve fiber strength-duration curve or the pulses, to thereby maintain the stimulation capability of the pulses substantially constant at a percentage of intensity as determined by the intensity control.
摘要翻译：公开了能够产生适合于治疗目的的脉冲输出信号的电子装置的脉冲补偿，其中当检测到所监视的状况变化时，脉冲补偿被自动提供。优选地包括微型计算机的电子设备具有外部可访问的脉冲宽度和强度控制，用于确定随后传送的脉冲的宽度和幅度。在每次检测到能够引起用户不适或可能的伤害的监视条件的变化时，随后被传送的脉冲的强度迅速减小，然后逐渐增加到由强度控制所要求的全部强度。当脉冲宽度由脉冲宽度控制变化时，也提供脉冲补偿，从而基于神经纤维强度 - 持续时间曲线或脉冲自动引起随后输送的脉冲的强度范围的相应变化，从而维持脉冲的刺激能力以由强度控制确定的强度百分比基本上恒定。

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