SYSTEMS AND METHODS FOR DETERMINING RESPIRATORY EFFORT
First Claim
Patent Images
1. A method for calculating a measure of respiratory effort of a subject, the method comprising:
- receiving at least one (PPG) signal;
calculating, using electronic processing equipment, a differential pulse transit time (DPTT) for each of the at least one PPG signal;
determining, using the electronic processing equipment, a measure of respiratory effort based at least in part on the calculated DPTTs; and
storing, using a storage device, the measure of respiratory effort.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and methods for calculating a measure of respiratory effort of a subject are provided. The measure of respiratory effort may be calculated based on a differential pulse transit time (DPTT) calculated for received photoplethysmograph signals. The systems and methods may allow for the calculation of respiratory effort in absolute units, and without the need for calibrations from a device that measures blood pressure (e.g., a non-invasive blood pressure cuff).
-
Citations
19 Claims
-
1. A method for calculating a measure of respiratory effort of a subject, the method comprising:
-
receiving at least one (PPG) signal; calculating, using electronic processing equipment, a differential pulse transit time (DPTT) for each of the at least one PPG signal; determining, using the electronic processing equipment, a measure of respiratory effort based at least in part on the calculated DPTTs; and storing, using a storage device, the measure of respiratory effort. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A system for calculating a measure of respiratory effort of a subject, comprising:
-
an input for receiving at least one photoplethysmograph (PPG) signal; a processor capable of using at least a portion of the at least one PPG signal to; calculate a differential pulse transit time (DPTT) for each of the at least one PPG signals; and determine a measure of respiratory effort based at least in part on the calculated DPTTs; and a storage device for storing the measure of respiratory effort. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. Computer readable storage media comprising instructions for:
-
receiving at least one photoplethysmograph (PPG) signal; calculating at least one differential pulse transit time (DPTT) for each of the at least one PPG signals; determining a measure of respiratory effort based at least in part on the calculated DPTTs; and storing the measure of respiratory effort.
-
Specification