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US 11,375,926 B2Granted
Systems, devices, and methods for performing trans-abdominal fetal oximetry and/or trans-abdominal fetal pulse oximetry using a heartbeat signal for a pregnant mammal
AssigneeRaydiant Oximetry, Inc.
InventorNeil Padharia Ray
Life of this patent
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Abstract
Light reflected from a pregnant woman's abdomen and fetus contained therein that has been received by a detector and converted into a reflected electronic signal may be received by a processor. A portion of the reflected electronic signal that is reflected from the fetus may be isolated and the isolated portion of the reflected electronic signal may be analyzed to determine a fetal hemoglobin oxygen saturation level of the fetus. The isolation may be achieved by synchronizing the reflected electronic signal with a fetal heartbeat signal and multiplying the synchronized reflected electronic signal by the synchronized fetal heartbeat signal.
Claims23
A fetal monitoring system, comprising:
- a detector adapted to detect light reflected from an abdomen of a pregnant mammal and a fetus contained therein, the reflected light corresponding to incident light projected into the pregnant mammal's abdomen and the fetus by a light source, the detector being further adapted to convert the detected light into a reflected electronic signal and communicate the reflected electronic signal to a processor;
- and
- the processor in communication with the detector, the processor being configured to:
- (i) isolate a portion of the reflected electronic signal that corresponds to light reflected from the fetus from the reflected electronic signal, the isolation comprising:
- (a) receiving the reflected electronic signal from the detector over a first time domain,
- (b) receiving a heartbeat signal of the fetus over a second time domain,
- (c) synchronizing the reflected electronic signal and the fetal heartbeat signal over the first and second time domains;
- and
- (d) examining portions of the synchronized electronic reflected signal that correspond in time with individual heartbeats of the fetus as indicated by the received heartbeat signal for the fetus;
- (ii) analyze the isolated portion of the reflected electronic signal to determine a hemoglobin oxygen saturation level of the fetus;
- and
- (iii) facilitate provision of an indication of the hemoglobin oxygen saturation level of the fetus to a display device.
9 more elements
A method for determining a fetal hemoglobin oxygen saturation level, the method comprising:
- receiving, by a processor, a heartbeat signal for a fetus over a first time domain from a monitor communicatively coupled to the processor;
- receiving, by the processor, a reflected electronic signal from a detector communicatively coupled to the processor, the reflected electronic signal corresponding to light reflected from a pregnant mammal's abdomen and a fetus contained therein, the reflected light being a portion of light projected, by a light source, into the pregnant mammal's abdomen and fetus contained therein, wherein the reflected light has been converted, by the detector, into the reflected electronic signal;
- processing, by the processor, the reflected electronic signal to isolate a portion of the reflected electronic signal that is reflected from the fetus, the processing of the reflected electronic signal comprising:
- synchronizing the electronic reflected signal and the fetal heartbeat signal over the first and second time domains;
- and
- examining, by the processor, portions of the synchronized electronic reflected signal that correspond in time with individual heartbeats of the fetus as indicated by the received heartbeat signal for the fetus;
- analyzing, by the processor, the isolated portion of the reflected electronic signal to determine a fetal hemoglobin oxygen saturation level of the fetus;
- and
- facilitating, by the processor, provision of an indication of the fetal hemoglobin oxygen saturation level to a display device.
6 more elements
A computer for determining a fetal hemoglobin oxygen saturation level comprising:
- a processor, the processor being configured to:
- receive a heartbeat signal for a pregnant mammal from a monitor communicatively coupled to the processor;
- receive a reflected electronic signal from a detector communicatively coupled to the processor, the reflected electronic signal corresponding to light reflected from a pregnant mammal's abdomen and a fetus contained therein, the reflected light being a portion of light projected, by a light source, into the pregnant mammal's abdomen and fetus contained therein, wherein the reflected light has been converted, by the detector, into the reflected electronic signal;
- isolate a portion of the reflected electronic signal reflected from the fetus by:
- receiving the reflected electronic signal from the detector over a first time domain
- receiving a heartbeat signal of the fetus over a second time domain,
- synchronizing the reflected electronic signal and the fetal heartbeat signal over the first and second time domains;
- and
- examining portions of the synchronized electronic reflected signal that correspond in time with individual heartbeats of the fetus as indicated by the received heartbeat signal for the fetus;
- analyze the isolated portion of the reflected electronic signal to determine a fetal hemoglobin oxygen saturation level of the fetus;
- and
- facilitate provision of an indication of the fetal hemoglobin oxygen saturation level to a display device.
9 more elements
Dependencies are inferred from the claim text.