US 11,684,296 B2
Noninvasive physiological sensor
Hung The Vo, Fountain Valley, CA (US); Kevin Hughes Pauley, Lake Forest, CA (US); Cristiano Dalvi, Lake Forest, CA (US); Sean Merritt, Lake Forest, CA (US); Jesse Chen, Foothill Ranch, CA (US); Jeroen Poeze, Rancho Santa Margarita, CA (US); Ferdyan Lesmana, Irvine, CA (US); and Ruiqi Long, Irvine, CA (US)
Assigned to Cercacor Laboratories, Inc., Irvine, CA (US)
Filed by Cercacor Laboratories, Inc., Irvine, CA (US)
Filed on Dec. 19, 2019, as Appl. No. 16/721,527.
Claims priority of provisional application 62/839,454, filed on Apr. 26, 2019.
Claims priority of provisional application 62/784,068, filed on Dec. 21, 2018.
Prior Publication US 2020/0196877 A1, Jun. 25, 2020
Int. Cl. A61B 5/1455 (2006.01); A61B 5/00 (2006.01)
CPC A61B 5/1455 (2013.01) [A61B 5/6826 (2013.01); A61B 5/6838 (2013.01); A61B 2562/0242 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A noninvasive physiological sensor comprising:
a first body portion and a second body portion coupled to the first body portion, the first and second body portions configured to at least partially enclose a finger of a user; and
a first probe and a second probe at least partially aligned with the first probe, the first probe coupled to one or more emitters and to at least one of the first and second body portions, the first probe configured to direct optical radiation emitted from the one or more emitters toward tissue of the user's finger, the second probe coupled to one or more detectors and to at least one of the first and second body portions, the second probe configured to direct light attenuated through pulsatile blood flowing through the tissue to the one or more detectors;
wherein, when the first and second body portions are rotated with respect to one another, a distance between ends of the first and second probes is changed.