US 12,186,079 B2
Calibration for multi-stage physiological monitors
Ammar Al-Ali, San Juan Capistrano, CA (US); Walter M. Weber, Laguna Hills, CA (US); and Valery G. Telfort, Irvine, CA (US)
Assigned to Masimo Corporation, Irvine, CA (US)
Filed by Masimo Corporation, Irvine, CA (US)
Filed on Dec. 19, 2022, as Appl. No. 18/068,269.
Application 18/068,269 is a continuation of application No. 16/911,770, filed on Jun. 25, 2020, granted, now 11,571,152.
Application 16/911,770 is a continuation of application No. 14/321,638, filed on Jul. 1, 2014, granted, now 10,729,402, issued on Aug. 4, 2020.
Application 14/321,638 is a continuation of application No. 12/960,325, filed on Dec. 3, 2010, granted, now 8,801,613, issued on Aug. 12, 2014.
Claims priority of provisional application 61/266,984, filed on Dec. 4, 2009.
Prior Publication US 2023/0117147 A1, Apr. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/1495 (2006.01); A61B 5/00 (2006.01); A61B 5/0205 (2006.01); A61B 5/024 (2006.01); A61B 5/08 (2006.01); A61B 5/145 (2006.01); A61B 5/1455 (2006.01); A61B 5/318 (2021.01); A61B 7/00 (2006.01); A61B 7/04 (2006.01)
CPC A61B 5/1495 (2013.01) [A61B 5/0205 (2013.01); A61B 5/024 (2013.01); A61B 5/08 (2013.01); A61B 5/14542 (2013.01); A61B 5/14551 (2013.01); A61B 5/318 (2021.01); A61B 5/7221 (2013.01); A61B 7/003 (2013.01); A61B 7/04 (2013.01); A61B 2560/0223 (2013.01); A61B 2562/0204 (2013.01); A61B 2562/085 (2013.01); A61B 2562/225 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A multi-stage physiological monitoring system comprising:
a first stage comprising a physiological sensor and a sensor cable, wherein the sensor cable comprises a first connector;
a second stage comprising an instrument cable, wherein the instrument cable comprises at least a second connector configured to removably couple with the first connector of the sensor cable, and wherein the second connector comprises preamplification circuitry; and
a third stage comprising a splitter cable, wherein the splitter cable comprises:
a monitor connector configured to removably connect to a sensor port of a monitor;
at least first and second sensor connectors each configured to separately and simultaneously removably connect to respective sensor cables and/or instrument cables, wherein at least one of the first or second sensor connectors is configured to removably connect to the second stage; and
one or more decoupling circuits configured to electrically decouple, from each other, physiological sensors connected, via sensor cables and/or instrument cables, to the at least first and second sensor connectors.