US 11,864,922 B2
Low-noise sensor system
Cristiano Dalvi, Lake Forest, CA (US); and Jeroen Poeze, Rancho Santa Margarita, CA (US)
Assigned to Cercacor Laboratories, Inc., Irvine, CA (US)
Filed by Cercacor Laboratories, Inc., Irvine, CA (US)
Filed on Oct. 12, 2022, as Appl. No. 18/045,970.
Application 18/045,970 is a continuation of application No. 16/831,497, filed on Mar. 26, 2020, granted, now 11,504,066.
Application 16/831,497 is a continuation of application No. 15/257,892, filed on Sep. 6, 2016, abandoned.
Claims priority of provisional application 62/214,440, filed on Sep. 4, 2015.
Prior Publication US 2023/0240617 A1, Aug. 3, 2023
Int. Cl. A61B 5/00 (2006.01); A61B 5/026 (2006.01); A61B 5/1491 (2006.01); A61B 5/1455 (2006.01)
CPC A61B 5/7203 (2013.01) [A61B 5/0261 (2013.01); A61B 5/1491 (2013.01); A61B 5/14552 (2013.01); A61B 5/7278 (2013.01); A61B 2560/0214 (2013.01); A61B 2562/185 (2013.01); A61B 2562/222 (2013.01); A61B 2562/227 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A low-noise sensor system comprising:
an optical sensor having emitters for transmitting optical radiation into a blood-perfused tissue site and detectors responsive to optical radiation after attenuation by pulsatile blood flow within the tissue site so as to generate sensor signals;
a sensor controller having an optically-isolated front-end that receives and digitizes the sensor signals, the sensor controller housed within the optical sensor; and
a serializer in communications with a shielded conductor so as to serially transmit the digitized sensor signals to an external monitor for deriving blood-related physiological parameters responsive to detector signals from the detector, the serializer housed within the optical sensor.