US 11,865,241 B2
Sensor monitoring system for in-dwelling catheter based treatments
Aly R. Elbadry, San Francisco, CA (US); Eric Hsiang Yu, San Francisco, CA (US); Ahmad Naim Saleh, San Leandro, CA (US); and Michael Austin Snyder, San Angelo, TX (US)
Assigned to GastroKlenz Inc., Stanford, CA (US)
Filed by GastroKlenz Inc., San Francisco, CA (US)
Filed on Dec. 14, 2018, as Appl. No. 16/221,361.
Claims priority of provisional application 62/731,339, filed on Sep. 14, 2018.
Claims priority of provisional application 62/599,619, filed on Dec. 15, 2017.
Prior Publication US 2019/0358387 A1, Nov. 28, 2019
Int. Cl. A61B 5/1455 (2006.01); A61M 1/36 (2006.01); A61M 1/28 (2006.01); A61B 5/145 (2006.01); A61B 5/00 (2006.01); A61M 25/00 (2006.01)
CPC A61M 1/361 (2014.02) [A61M 1/28 (2013.01); A61M 1/3663 (2013.01); A61B 5/1455 (2013.01); A61B 5/14546 (2013.01); A61B 5/6866 (2013.01); A61B 2562/0233 (2013.01); A61M 25/0017 (2013.01); A61M 2205/3313 (2013.01); A61M 2205/3584 (2013.01); A61M 2230/20 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of detecting infection of a patient, comprising:
receiving patient fluid through a fluid conduit;
measuring an optical characteristic of the patient fluid at two or more wavelength ranges;
estimating a leukocyte concentration based at least in part on the optical characteristic measurement at the two or more wavelength ranges; and
detecting an infection state of the patient based at least in part on the estimated leukocyte concentration.