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Systems and methods for measuring fetal cerebral oxygenation

An oxygenation, fetal technology, applied in the field of systems and methods for measuring fetal brain oxygenation, and can solve problems such as increased maternal risk

Inactive Publication Date: 2017-08-01
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

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  • Systems and methods for measuring fetal cerebral oxygenation
  • Systems and methods for measuring fetal cerebral oxygenation
  • Systems and methods for measuring fetal cerebral oxygenation

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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 specif...

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Abstract

Optoacoustic diagnostic systems, devices, and methods are described. A system may comprise a console unit and a handheld probe. The console unit comprises a controller, a processor, a photodiode array, an acoustic processing subsystem, and a cooling subsystem. The probe directs light signals from the photodiode array to patient tissue. The light signals each have different wavelengths selected based on the physiological parameter of interest. The probe further comprises an acoustic transducer that receives acoustic signals generated in response to the directed light signals. The probe may comprise a finger-held working end that can be directed to the skull of a fetus within the uterus during labor. The probe can then accurately determine blood oxygenation of the fetus to determine if a caesarian section is necessary.

Description

[0001] cross reference [0002] 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. [0003] 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 "Real Time Optoacoustic Monitoring of Changes in Tissue Properties"; U.S. Patent No. 6,498,942, issued December 2002 April 24 and titled "Optoacoustic Monitoring of Blood Oxygenation"; US Patent No. 6,725,073 issued April 20, 2004 and titled "Methods for Noninvasive Analyte Sensing"; US Patent No. 6,751,490 issued June 15, 2004 and entitled "Continuous Optoacoustic...

Claims

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Application Information

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IPC IPC(8): A61B5/1455
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
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