Luminous source device and fetal blood oxygen light signal acquisition device

Abstract

Provided are a luminous source device and a fetal blood oxygen light signal acquisition device which are used for an abdominal external noninvasive fetal blood oxygen saturation degree detecting device. The luminous source device comprises a luminous source, wherein the luminous source comprises multiple first luminous units and multiple second luminous units, the multiple first luminous units canemit red light or infrared light of first wavelength, the multiple second luminous units can emit red light or infrared light of second wavelength, the first wavelength is different from the second wavelength, the first luminous units and the second luminous units are identical in number, the multiple first luminous units and the multiple second luminous units are arranged to form a line-row luminous source matrix, and large-range multiple ways are achieved to increase the luminous power of the luminous source, so that received light signals relevant to the fetal blood oxygen saturation degree are greatly intensified compared with an original device, but the light power received per unit area of abdominal skin of a pregnant woman is very small or is not improved. The fetal blood oxygen light signal acquisition device is provided with the luminous source device.

Description

technical field [0001] The present invention relates to the technical field of blood oxygen saturation detection in medical equipment, and more specifically, relates to a light-emitting light source device and a fetal blood oxygen optical signal acquisition device of an extra-abdominal non-invasive fetal blood oxygen saturation detection device. Background technique [0002] The later stages of pregnancy, as well as the labor and delivery phases, can be a dangerous time for the mother and fetus. If the fetal umbilical cord becomes twisted in an unfavorable position, the placenta separates prematurely, or certain diseases of the mother and fetus can lead to insufficient oxygen in the fetal blood, which can lead to fetal brain damage or death. Pulse oximetry (SaO 2 ) to indirectly monitor the human body, including the oxygen content in fetal blood. [0003] At present, fetal heart rate and heart sound monitors have been widely used in the monitoring of fetal physiological st...

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Problems solved by technology

[0005] The applicant also found in the research that the extra-abdominal fetal non-invasive blood oxygen saturation monitoring system must have enough power to irradiate the pregnant woman's abdomen in order to ensure that the optical receiver receives effective light signals related to the fetus. Increase the luminous power of the light source. Based on the currently used light-emitting elements (such as LEDs and lasers), the light-emitting area is very small, and it is usually close to the skin of pregnant women. There is a possibility that the skin of pregnant women will feel uncomfortable or be burned during use.

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