公开(公告)号：WO2017127669A9

公开(公告)日：2017-07-27

申请号：PCT/US2017/014319

申请日：2017-01-20

Applicant: MICROCHIP TECHNOLOGY INCORPORATED

Inventor： BARTLING, D. Ryan

IPC: A61B5/024 ,  A61B5/1455 ,  A61B5/00 ,  H04B10/116

Abstract: A pulse oximetry measurement system uses a pseudo-random noise generator to stimulate one or more light emitting diodes (LEDs). The light amplitudes from these LEDs, after passing through a part of a body, are detected by a phototransistor or photodiode and digitized with an analog-to-digital converter (ADC). The digitized ADC light amplitude values are re-correlated with the outgoing pseudo-random noise stimulus. Spread spectrum techniques are known for their noise mitigation properties, and ability to pass multiple signals through the same medium without interference. Thus, these measurements can be performed substantially simultaneously with minimal interference from each other. The pulse oximetry measurement system correlates the measured light intensities using pseudo-random noise generation and phase division multiplexing, and computes the measured and correlated peak- to-peak detected light amplitudes to obtain a ratio between these light amplitudes for determining oxygen saturation in the blood, and may also be used for heart rate monitoring.

公开(公告)号：WO2017127669A1

公开(公告)日：2017-07-27

申请号：PCT/US2017/014319

申请日：2017-01-20

Applicant: MICROCHIP TECHNOLOGY INCORPORATED

Inventor： BARTLING, D. Ryan

IPC: A61B5/024 ,  A61B5/1455 ,  A61B5/00 ,  H04B10/116

CPC classification number: A61B5/02427 ,  A61B5/02416 ,  A61B5/02433 ,  A61B5/14551 ,  A61B5/14552 ,  A61B5/7203 ,  A61B5/7225 ,  A61B5/7228 ,  A61B5/7246 ,  A61B5/725 ,  A61B2560/0252 ,  A61B2562/0233 ,  G01J1/08 ,  G01J1/44 ,  G01J2001/4413 ,  G01J2001/444 ,  H04B10/116

Abstract: A pulse oximetry measurement system uses a pseudo-random noise generator to stimulate one or more light emitting diodes (LEDs). The light amplitudes from these LEDs, after passing through a part of a body, are detected by a phototransistor or photodiode and digitized with an analog-to-digital converter (ADC). The digitized ADC light amplitude values are re-correlated with the outgoing pseudo-random noise stimulus. Spread spectrum techniques are known for their noise mitigation properties, and ability to pass multiple signals through the same medium without interference. Thus, these measurements can be performed substantially simultaneously with minimal interference from each other. The pulse oximetry measurement system correlates the measured light intensities using pseudo-random noise generation and phase division multiplexing, and computes the measured and correlated peak- to-peak detected light amplitudes to obtain a ratio between these light amplitudes for determining oxygen saturation in the blood, and may also be used for heart rate monitoring.

Abstract translation: 脉搏血氧饱和度测量系统使用伪随机噪声发生器来刺激一个或多个发光二极管（LED）。 来自这些LED的光振幅在穿过身体的一部分之后，被光电晶体管或光电二极管检测到，并通过模数转换器（ADC）进行数字化。 数字化的ADC光振幅值与输出的伪随机噪声刺激重新相关。 扩频技术因其噪声抑制特性而闻名，并且能够在不受干扰的情况下通过同一介质传送多个信号。 因此，这些测量可以在彼此的干扰最小的情况下基本上同时进行。 脉搏血氧饱和度测量系统使用伪随机噪声生成和相位分割多路复用来关联测量的光强度，并且计算测量的和相关的峰值到峰值检测光振幅以获得这些光振幅之间的比率以确定血液中的氧饱和度 ，也可用于心率监测。

公开(公告)号：EP3405106A1

公开(公告)日：2018-11-28

申请号：EP17702736.4

申请日：2017-01-20

Applicant: Microchip Technology Incorporated

Inventor： BARTLING, D. Ryan

IPC: A61B5/024 ,  A61B5/1455 ,  A61B5/00 ,  H04B10/116

CPC classification number: A61B5/02427 ,  A61B5/02416 ,  A61B5/02433 ,  A61B5/14551 ,  A61B5/14552 ,  A61B5/7203 ,  A61B5/7225 ,  A61B5/7228 ,  A61B5/7246 ,  A61B5/725 ,  A61B2560/0252 ,  A61B2562/0233 ,  G01J1/08 ,  G01J1/44 ,  G01J2001/4413 ,  G01J2001/444 ,  H04B10/116

Abstract: A pulse oximetry measurement system uses a pseudo-random noise generator to stimulate one or more light emitting diodes (LEDs). The light amplitudes from these LEDs, after passing through a part of a body, are detected by a phototransistor or photodiode and digitized with an analog-to-digital converter (ADC). The digitized ADC light amplitude values are re-correlated with the outgoing pseudo-random noise stimulus. Spread spectrum techniques are known for their noise mitigation properties, and ability to pass multiple signals through the same medium without interference. Thus, these measurements can be performed substantially simultaneously with minimal interference from each other. The pulse oximetry measurement system correlates the measured light intensities using pseudo-random noise generation and phase division multiplexing, and computes the measured and correlated peak-to-peak detected light amplitudes to obtain a ratio between these light amplitudes for determining oxygen saturation in the blood, and may also be used for heart rate monitoring.