The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 2021
Filed:
Sep. 18, 2018
Beijing Weitexing Technology Co. Ltd, Beijing, CN;
Wen Huang, Beijing, CN;
Yixiang Wang, Beijing, CN;
BEIJING Weitexing Technology Co. Ltd, Beijing, CN;
Abstract
A trans-abdominal non-invasive fetal blood oxygen saturation detection device comprises a trans-abdominal fetal oximeter and a signal detection assembly connected to the trans-abdominal fetal oximeter. The trans-abdominal oximeter comprises a signal processing controller. The signal detection assembly comprises a light-emitting light source device and a light receiving device, wherein the light-emitting light source device, the light receiving device and a reference signal detection device are all connected to the signal processing controller. The light-emitting light source device irradiates two or more different wavelengths of light into the abdominal cavity of a pregnant woman. The light receiving device comprises a plurality of light receivers respectively placed at a plurality of different positions outside the abdominal cavity of the pregnant woman, and is configured to collect a plurality of optical signals related to the fetal blood oxygen saturation, which are scattered and reflected back from the abdominal cavity of the pregnant woman through the plurality of light receivers, synthesize the optical signals into an optical signal sum related to the fetal blood oxygen saturation and then output it to the signal processing controller, such that the intensity of the received optical signals is improved.