Systems, devices, and methods for performing trans-abdominal fetal oximetry and/or trans-abdominal fetal pulse oximetry
First Claim
1. A system comprising:
- a housing configured to house a first light source, a second light source, a detector, a transceiver, and a power source;
the first light source adapted to project light of a first wavelength into the abdomen of a pregnant mammal toward a fetus contained therein;
the second light source adapted to project light of a second wavelength into the abdomen of the pregnant mammal toward the fetus;
the detector, the detector being adapted to detect light reflected from the pregnant mammal'"'"'s abdomen over a first time domain and the fetus and convert the detected light into an electronic reflected signal and communicate the electronic reflected signal to the transceiver;
the transceiver, the transceiver being adapted to receive the electronic reflected signal from the detector and communicate the received electronic reflected signal to a processor;
the power source electrically coupled to the first light source, the second light source, and the detector, the power source being adapted to provide electrical power to first light source, the second light source, the detector, and the transceiver; and
the processor, the processor being configured to;
receive the electronic reflected signal from the detector;
isolate a portion of the reflected electronic signal that is reflected from the fetus, the isolation comprising;
receiving a fetal heartbeat signal for the fetus from a fetal heartbeat monitor over a second time domain, the fetal heartbeat signal indicating when, in the second time domain, a fetal heartbeat occurs;
synchronizing electronic reflected signal and the fetal heartbeat signal over the first time domain and the second time domain; and
multiplying the synchronized electronic reflected signal by the synchronized fetal heartbeat signal;
analyze the isolated portion of the reflected electronic signal to determine a fetal hemoglobin oxygen saturation level of the fetus, andprovide an indication of the oxygen level of fetal blood to a display device.
1 Assignment
0 Petitions
Accused Products
Abstract
Light beams emitted from one or more light sources may be directed into an abdomen of a pregnant mammal toward a fetus contained therein. Some of the light may be reflected by the pregnant woman and fetus and received at a detector over a first time. A photo detector into an electronic reflected signal, which may be communicated to a computer, may then convert the received light. The electronic reflected signal may then be processed and/or analyzed to isolate a portion of the electronic reflected signal reflected from the fetus. The isolated portion of the electronic reflected signal reflected from the fetus may then be analyzed to determine a fetal hemoglobin oxygen saturation level of the fetus. An indication of the fetal hemoglobin oxygen saturation level may then be provided to an operator by way of, for example, a computer display.
-
Citations
21 Claims
-
1. A system comprising:
-
a housing configured to house a first light source, a second light source, a detector, a transceiver, and a power source; the first light source adapted to project light of a first wavelength into the abdomen of a pregnant mammal toward a fetus contained therein; the second light source adapted to project light of a second wavelength into the abdomen of the pregnant mammal toward the fetus; the detector, the detector being adapted to detect light reflected from the pregnant mammal'"'"'s abdomen over a first time domain and the fetus and convert the detected light into an electronic reflected signal and communicate the electronic reflected signal to the transceiver; the transceiver, the transceiver being adapted to receive the electronic reflected signal from the detector and communicate the received electronic reflected signal to a processor; the power source electrically coupled to the first light source, the second light source, and the detector, the power source being adapted to provide electrical power to first light source, the second light source, the detector, and the transceiver; and the processor, the processor being configured to; receive the electronic reflected signal from the detector; isolate a portion of the reflected electronic signal that is reflected from the fetus, the isolation comprising; receiving a fetal heartbeat signal for the fetus from a fetal heartbeat monitor over a second time domain, the fetal heartbeat signal indicating when, in the second time domain, a fetal heartbeat occurs; synchronizing electronic reflected signal and the fetal heartbeat signal over the first time domain and the second time domain; and multiplying the synchronized electronic reflected signal by the synchronized fetal heartbeat signal; analyze the isolated portion of the reflected electronic signal to determine a fetal hemoglobin oxygen saturation level of the fetus, and provide an indication of the oxygen level of fetal blood to a display device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method comprising:
-
directing, by a light source, a light beam emitted from the light source into an abdomen of a pregnant mammal toward a fetus contained therein; receiving light reflected by the pregnant mammal and the fetus at a detector over a first time domain; converting, by the detector, the received light into an electronic reflected signal; communicating, by the detector, the electronic reflected signal to a computer; processing, by the computer, the electronic reflected signal to isolate a portion of the electronic reflected signal reflected from the fetus, the processing of the electronic reflected signal comprising; receiving a fetal heartbeat signal for the fetus over a second time domain, the fetal heartbeat signal indicating when, in the second time domain, a fetal heartbeat occurs; synchronizing the electronic reflected signal and the fetal heartbeat signal over the first time domain and the second time domain; and multiplying the synchronized electronic reflected signal by the synchronized fetal heartbeat signal; analyzing, by the computer, the portion of the electronic reflected signal reflected from the fetus to determine a fetal hemoglobin oxygen saturation level of the fetus; and facilitating, by the computer, provision of an indication of the fetal hemoglobin oxygen saturation level to an operator. - View Dependent Claims (12)
-
-
13. A fetal hemoglobin probe comprising:
-
a housing configured to house a first light source, a second light source, a detector, a transceiver, and a power source; the first light source adapted to project light of a first wavelength into the abdomen of a pregnant mammal toward a fetus contained therein; the second light source adapted to project light of a second wavelength into the abdomen of the pregnant mammal toward the fetus; the detector, the detector being adapted to detect light reflected from the pregnant mammal'"'"'s abdomen and the fetus and convert the detected light into an electronic reflected signal and communicate the electronic reflected signal to the transceiver; the transceiver, the transceiver being adapted to receive the electronic reflected signal from the detector and communicate the received electronic reflected signal to a processor; the power source electrically coupled to the first light source, the second light source, the detector, and a controller, the power source being adapted to provide electrical power to first light source, the second light source, the detector, and the transceiver; an adjustment mechanism coupled to at least one of the first and second light sources, the adjustment mechanism being adapted to adjust at least one wavelength of light emitted by the respective first and second light sources and an incident angle of the light emitted by the respective first and second light sources when projected into the pregnant mammal'"'"'s abdomen, and focus a beam of light as it is projected into the pregnant mammal'"'"'s abdomen as it emitted from the respective first and second light sources; and the controller, the controller being communicatively coupled to the adjustment mechanism and at least one of the detector and the transceiver, the controller being configured to provide instructions to the adjustment mechanism that control an operation of the adjustment mechanism regarding the adjustment of the at least one wavelength of emitted light and the incident angle of the emitted light, the instructions being responsive to feedback from at least one of the detector and the transceiver regarding an aspect of the reflected light detected by the detector. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
-
Specification