Method and device for monitoring oxygen supply parameters
A technology of parameter monitoring and extinction coefficient, applied in the medical field
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[0048] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.
[0049] The oxygen supply parameter monitoring method disclosed in the present invention is specifically implemented as follows:
[0050] The oxygen supply parameter monitoring method disclosed in the present invention includes the following steps:
[0051] Step 1. Pass Hb-SO placed in the esophagus 2 The sensor detects the optical density OD of blood in the adjacent descending aorta through the esophageal wall and the optical density change △OD, the Hb-SO 2 The sensor emits three near-infrared light with different wavelengths;
[0052] Step 2. Calculate the change in the concentration of reduced hemoglobin in the blood ΔC using formula (1) and formula (2) HHb , Oxygen and hemoglobin concentration changes
[0053] ΔC H H b = e HbO 2 λ 2 ...
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