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Monitoring device of blood oxygen saturation in motion state

A blood oxygen and motion signal technology, applied in the field of medical instruments, can solve the problems of not including a device for monitoring the motion state of the subject, and a large amount of calculation, so as to achieve real-time dynamic monitoring of blood oxygen transformation, small size, and expanded use range. Effect

Inactive Publication Date: 2012-01-04
上海交通大学中原研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology does not include a device to monitor the subject's motion state. It relies on a large number of calculations to remove motion noise without knowing the subject's actual motion signal. Therefore, the calculation of the device is too large, and it is only effective for some signals with obvious characteristics.

Method used

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  • Monitoring device of blood oxygen saturation in motion state
  • Monitoring device of blood oxygen saturation in motion state

Examples

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Embodiment

[0021] like figure 1 As shown, this embodiment includes: a PPG signal generation module, a motion signal generation module, a signal processing module, a communication module and a human-computer interaction module, wherein: the PPG signal generation module is connected with the signal processing module to transmit PPG under red light and infrared light The signal and motion signal generation module are connected to the signal processing module through the SPI port to transmit the acceleration of human tissue in three mutually perpendicular directions in space, the communication module is connected to the signal processing module to transmit blood oxygen information and heart rate information, and the human-computer interaction module and signal The processing modules are connected to transmit control information and monitoring results.

[0022] The PPG signal generation module includes: 840mn light-emitting diodes, 960mn light-emitting diodes and photodiodes, wherein: 840mn l...

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Abstract

The invention relates to a monitoring device of blood oxygen saturation in motion state in the technical field of medical appliances, which comprises a PPG signal generation module, a motion signal generation module, a signal processing module, a communication module and a man-machine interaction module. Compared with a traditional blood oxygen saturation monitoring device, the device adds the motion signal generation module for monitoring the motion acceleration of a space: in a signal acquisition stage, the output information of the motion signal generation module is used for adjusting the amplification process of the PPG signal; and in a signal processing stage, the output information of the motion signal generation module is used for eliminating the motion noise in the PPG signal. Themonitoring device of blood oxygen saturation in motion state can effectively eliminate the impact of the motion noise in the blood oxygen monitoring process, improve the monitoring accuracy, and enlarge the scope of use of the device.

Description

technical field [0001] The invention relates to a device in the technical field of medical instruments, in particular to a device for monitoring blood oxygen saturation in an exercise state. Background technique [0002] The oxygen needed by human metabolism is transported to different tissue cells by combining with hemoglobin (Hb) in the blood to form oxyhemoglobin (HbO2). Blood oxygen saturation (SaO2) indicates the percentage of oxygen-bound oxyhemoglobin (HbO2) in the blood to the total hemoglobin (Hb) that can be combined, that is, the concentration of blood oxygen in the blood. Therefore, monitoring SaO2 plays an important role in understanding the condition of the respiratory system and circulatory system and preventing tissue hypoxia. [0003] At present, the existing blood oxygen monitoring devices are all based on the Lambert-beer principle and photoelectric technology. First, the photoplethysmography (PPG) under red light and infrared light is obtained through ph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/1455
Inventor 牛金海聂冬崔萌童善保朱贻盛
Owner 上海交通大学中原研究院
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