发明名称 |
BLOOD OXYGEN SATURATION DETECTION METHOD AND SYSTEM |
摘要 |
The present application relates to detection technology, it provides a detection method and detection system of blood oxygen saturation, this method includes: controlling two parallel light emitting diodes to emit a red light and an infrared light periodically to a finger; detecting the red light and infrared light passing through the finger and converting them into a red light electrical signal and an infrared light electrical signal respectively; separating pulsating components from the two electrical signals to obtain a separated variation of red light in one cycle and a separated variation of infrared light in one cycle; calculating the blood oxygen saturation based on the variations of red light and infrared light; amplifying and filtering the blood oxygen saturation prior to converting the blood oxygen saturation into digital signal by analog-to-digital converter. |
申请公布号 |
US2015250411(A1) |
申请公布日期 |
2015.09.10 |
申请号 |
US201314437395 |
申请日期 |
2013.10.23 |
申请人 |
SHENZHEN BREO TECHNOLOGY CO., LTD. |
发明人 |
Ma Xuejun;Wu Minghui |
分类号 |
A61B5/1455;A61B5/00;A61B5/024 |
主分类号 |
A61B5/1455 |
代理机构 |
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代理人 |
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主权项 |
1. A method for detecting oxygen saturation in a blood comprising:
controlling two parallel light emitting diodes to respectively emit a red light and an infrared light periodically to a finger to be detected; detecting the red light and infrared light passing through the finger, and converting the transmitted red light and infrared light into a red light electrical signal and an infrared light electrical signal respectively; separating pulsating components from the two electrical signals to obtain a separated variation of red light in one cycle and a separated variation of infrared light in one cycle; calculating the blood oxygen saturation based on the variations of red light and infrared light; amplifying and filtering the blood oxygen saturation prior to converting the blood oxygen saturation into a digital signal by means of an analog-to-digital converter. |
地址 |
Shenzhen, Guangdong CN |