Instrument for measuring haemoglobin concentration and blood oxygen saturation and measuring method

A technology of hemoglobin concentration and saturation, applied in diagnostic recording/measurement, medical science, sensors, etc., can solve problems such as difficult implementation, incompletely accurate methods, and tediousness

Active Publication Date: 2013-02-13
YANGZHOU AOTAI PHOTOELECTRIC BIOLOGICAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This is a cumbersome and not entirely accurate method, which is difficult to implement in the actual detection process

Method used

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  • Instrument for measuring haemoglobin concentration and blood oxygen saturation and measuring method
  • Instrument for measuring haemoglobin concentration and blood oxygen saturation and measuring method
  • Instrument for measuring haemoglobin concentration and blood oxygen saturation and measuring method

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Embodiment Construction

[0018] Such as figure 1 As shown, it is a hemoglobin concentration and blood oxygen saturation measuring instrument, including a laser modulation unit 110, a control and data acquisition unit 150, a photodetector unit 140, a data processing and display unit 160, and an optical sensor 120; the laser modulation unit 110 The output end of the optical sensor 120 is connected to the optical sensor 120 through the optical fiber 130, and the optical sensor 120 is connected to the input end of the optical detection unit 140 through the optical fiber 131, and the optical detection unit 140 is connected to the control and data acquisition unit 150 through a bidirectional signal; the control and data acquisition unit 150 is connected to the Laser modulation unit 110 is connected via bidirectional signals; control and data acquisition unit 150 is connected with data processing and display unit 160 via bidirectional signals; above-mentioned bidirectional signals all have control signals and...

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Abstract

The invention discloses an instrument for measuring haemoglobin concentration and blood oxygen saturation and a measuring method, and belongs to the technical field of medical detection. The instrument comprises a laser modulation unit, a control and data acquisition unit, an optical detector unit, a data processing and display unit and a photo sensor; the laser modulation unit can emits near infrared laser with more than two wavelengths, laser of each wavelength is modulated by two radio frequency signals with different frequencies, and the output end of a laser source is connected with the input end of the photo sensor through a multiway multiplexing optical switch; the optical detector unit detects phase shift of radio frequency and intensity attenuation of laser modulated by different radio frequencies; and after being collected, data are sent to the data processing and display unit, so that absorption and scattering coefficient of haemoglobin is obtained after calculation, information of haemoglobin concentration and blood oxygen saturation is obtained through conversion, and then the data are stored and displayed. The invention has the advantage that influence of various interferences on the result can be reduced or eliminated, so that the haemoglobin concentration and the blood oxygen saturation can be measured more accurately.

Description

technical field [0001] The invention relates to the technical field of medical detection, in particular to a device for measuring hemoglobin concentration and blood oxygen saturation, and a method for measuring hemoglobin concentration and blood oxygen saturation. Background technique [0002] Existing laser human tissue oximeters use continuous wave laser measurement technology, which can only simply measure the absorption coefficient of hemoglobin to laser light, but cannot measure the scattering coefficient of hemoglobin to laser light. Tissues in different parts of the human body have different scattering coefficients for laser light; and the light signal returned from the human body tissue also contains the signal of absorption and scattering of photons by red blood cells. For the absorption signal, through spectral analysis, the ratio of oxygenated hemoglobin to deoxygenated hemoglobin can be approximated, that is, the relative trend value of blood oxygen saturation; h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/1455
Inventor 王明
Owner YANGZHOU AOTAI PHOTOELECTRIC BIOLOGICAL TECH CO LTD
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