公开(公告)号：US6106481A

公开(公告)日：2000-08-22

申请号：US942710

申请日：1997-10-01

申请人： Alan M. Cohen

发明人： Alan M. Cohen

IPC分类号： A61B5/00 ,  A61B5/08 ,  A61B5/091 ,  A61B5/113 ,  A61N5/00

CPC分类号： A61B5/1135 ,  A61B5/091 ,  A61B5/486

摘要： A system for measuring a patient's inspiration volume and for enhancing patient compliance with a predetermined breathing pattern during inspiration volume measurements. A flexible conductive loop adapted for being wrapped around, and conforming to the patient's chest is coupled to an amplifier circuit including a signal generator and an exclusive-OR gate. The signal generator generates a square-wave signal for coupling to a first terminal of the conductive loop and the exclusive-OR gate is responsive to the applied square-wave signal and to a signal at the second terminal of the loop for measuring the delay between the signals. The output signal of the amplifier circuit is indicative of the inductance of the loop, which varies with the patient's inspiration volume. The measured inspiration volume is displayed on a first display and a target inspiration volume is displayed on a second display, preferably, disposed adjacent to the first display. The patient is instructed to breathe in a manner that causes the measured inspiration volume display to match the target inspiration volume display. In one embodiment, a measure of the patient's compliance with the predetermined breathing pattern is provided.

摘要翻译： 用于在吸气量测量期间测量患者的吸气量并用于增强患者对预定呼吸模式的依从性的系统。 适于缠绕并符合患者胸部的柔性导电环路耦合到包括信号发生器和异或门的放大器电路。 信号发生器产生一个方波信号，用于耦合到导电环路的第一端，异或门响应于所施加的方波信号和环路的第二端处的信号， 信号。 放大器电路的输出信号表示环路的电感，其随着患者的吸气量而变化。 所测量的吸气体积显示在第一显示器上，并且目标吸气体积显示在第二显示器上，优选地邻近第一显示器设置。 指示患者以使得测量的吸气量显示符合目标吸气体积显示的方式呼吸。 在一个实施例中，提供了对患者符合预定呼吸模式的量度。

公开(公告)号：US5984954A

公开(公告)日：1999-11-16

申请号：US940396

申请日：1997-10-01

申请人： Alan M. Cohen

发明人： Alan M. Cohen

IPC分类号： A61B5/021 ,  A61B5/0456 ,  G06F17/00

CPC分类号： A61B5/0456 ,  A61B5/021

摘要： Apparatus and methods for determining the precise times of occurrence of R-waves in an ECG signal of a patient. Samples of the patient's ECG signal are accumulated and an ECG window comprising a predetermined number of the samples is defined. In accordance with one embodiment of the invention, the patient's blood pressure signal is processed to detect systoles and the ECG window has a predetermined time relationship to detected systoles. In accordance with an alternative embodiment, the ECG signal is first processed to approximate the times of occurrence of R-waves and the ECG window is defined to have a predetermined time relationship to the approximated R-wave times. ECG signal samples within the ECG window are processed to determine a maximum and the time of occurrence of the maximum is stored as the time of an R-wave event.

公开(公告)号：US6161037A

公开(公告)日：2000-12-12

申请号：US426509

申请日：1999-10-26

申请人： Alan M. Cohen

发明人： Alan M. Cohen

IPC分类号： A61B5/021 ,  A61B5/0456 ,  G06F17/00 ,  A61B5/04

CPC分类号： A61B5/0456 ,  A61B5/021

摘要： Apparatus and methods for determining the precise times of occurrence of R-waves in an ECG signal of a patient. Samples of the patient's ECG signal are accumulated and an ECG window comprising a predetermined number of the samples is defined. In accordance with one embodiment of the invention, the patient's blood pressure signal is processed to detect systoles and the ECG window has a predetermined time relationship to detected systoles. In accordance with an alternative embodiment, the ECG signal is first processed to approximate the times of occurrence of R-waves and the ECG window is defined to have a predetermined time relationship to the approximated R-wave times. ECG signal samples within the ECG window are processed to determine a maximum and the time of occurrence of the maximum is stored as the time of an R-wave event.

摘要翻译： 用于确定患者的ECG信号中R波的出现精确时间的装置和方法。 累积患者ECG信号的样本，并且定义包括预定数量样本的ECG窗口。 根据本发明的一个实施例，处理患者的血压信号以检测心律，并且ECG窗口与检测到的收缩期具有预定的时间关系。 根据替代实施例，首先处理ECG信号以近似R波的出现次数，并将ECG窗口定义为与近似的R波时间具有预定的时间关系。 处理ECG窗口内的ECG信号样本以确定最大值，将最大值的发生时间存储为R波事件的时间。