Monitoring Positive End Expiratory Pressure With Photoplethysmography
AssigneeUniversity of Florida Research Foundation, Inc.
InventorsRichard J. Melker, Neil R. Euliano
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Abstract
Provided according to embodiments of the invention are methods for monitoring the application of positive end expiratory pressure (PEEP) to an individual. Such methods include isolating a pulsatile arterial component (PAC) signal and a venous impedance component (VIC) signal of a PPG signal obtained from a central source site of the individual; monitoring the PAC signal, the VIC signal, or both, over time; and adjusting the level of PEEP based on the PAC signal, the VIC signal, or both.
Claims16
A method for monitoring the application of positive end expiratory pressure (PEEP) to an individual, comprising
- isolating, with a computer, a pulsatile arterial component (PAC) signal and a venous impedance component (VIC) signal of a PPG signal obtained from a central source site of the individual;
- monitoring the PAC signal, the VIC signal, or both, over time;
- and
- adjusting the level of PEEP based on the PAC signal, the VIC signal, or both.
A system for adjusting the level of positive end expiratory pressure (PEEP) provided to an individual, comprising:
- a pulse oximeter probe secured to the individual;
- at least one processing device in communication with the pulse oximeter probe,
- wherein the at least one processing device isolates a PAC signal and a VIC signal from the PPG signal;
- a ventilator providing oxygen-rich gas to the individual as PEEP,
- wherein the ventilator automatically adjusts the level of PEEP based on the PAC signal, the VIC signal, or both.
Dependencies are inferred from the claim text.