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Systems and methods for determining oxygenation of subject

A technology of subject and oxygenation, applied in application, medical science, diagnosis, etc., can solve problems such as increased risk of puerpera

Pending Publication Date: 2021-12-31
BOARD OF RGT THE UNIV OF TEXAS SYST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Unfortunately, preventive cesarean delivery carries increased maternal risk

Method used

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  • Systems and methods for determining oxygenation of subject
  • Systems and methods for determining oxygenation of subject
  • Systems and methods for determining oxygenation of subject

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Embodiment Construction

[0066] As noted above, it would be desirable to have a direct way to measure fetal brain oxygenation, such as cerebral venous oxygen saturation. Systems and methods well suited for this purpose are disclosed herein. In many embodiments, a system for measuring fetal brain oxygenation includes a fetal brain oxygenation probe that can be applied to the head of a fetus during labor. The probe may be a photoacoustic probe configured to transmit light through the skull and brain tissue to the superior sagittal sinus (SSS) and to receive echo waves induced by illumination to the SSS. A determination of blood oxygen saturation can then be made based on the sound waves. In some embodiments, the probe is sized and configured to fit between the obstetrician's fingers to facilitate application to the head of the fetus, and includes a waveguide that emits light and an acoustic sensor that detects acoustic signals emitted from the SSS .

[0067] In the following disclosure, various speci...

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Abstract

Photoacoustic diagnostic systems, devices, and methods are described. A system for photoacoustic determination of oxygenation of a subject may include: a light source configured to emit first light having a first wavelength, second light having a second wavelength different from the first wavelength, and third light having a third wavelength different from the first wavelength and the second wavelength to tissue; an acoustic transducer configured to detect first, second, and third amplitudes of acoustic pressure generated by the tissue in response to the first, second, and third emitted light, respectively; and a processor configured to determine oxygenation of the subject based on a first difference between the first amplitude and the second amplitude and a second difference between the first amplitude and the third amplitude.

Description

[0001] This application is a Chinese patent application with an application date of July 08, 2015, an application number of 201580048221.9, and an invention title of "System and Method for Measuring Fetal Brain Oxygenation" (the application date of the corresponding PCT application is July 2015 08, application number is PCT / US2015 / 039620) divisional application. [0002] cross reference [0003] This application claims the benefit of the following patent applications: U.S. Provisional Application No. 62 / 021,946, filed July 8, 2014, entitled "System and Methods for Measuring Fetal Cerebral Oxygenation," and filed May 29, 2015, entitled " System and Methods for Measuring Fetal Cerebral Oxygenation," U.S. Provisional Application No. 62 / 168,081, which is hereby incorporated by reference. [0004] The subject matter of this application is related to the subject matter of the following patents and patent applications: U.S. Patent No. 6,309,352, issued October 27, 1998, and entitled ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/1455A61B5/1459A61B5/1464A61B5/00
CPCA61B5/0095A61B5/14551A61B5/1464A61B2560/0425A61B5/14542A61B5/14553A61B5/1459A61B5/6814A61B5/6875A61B5/742A61B2562/0271
Inventor 里纳特·埃塞纳里夫唐纳德·普罗夫尤里·彼得罗夫艾琳·彼得罗夫乔治·沙迪盖尔·L·奥尔森汤米·G·库珀
Owner BOARD OF RGT THE UNIV OF TEXAS SYST