IP Library Granted Patent US 12,230,393
Granted Patent B2
US 12,230,393 · App. 18/059,679 · Granted Feb 18, 2025

Multiple wavelength sensor emitters

Inventors: Robert A. Smith (Lake Forest, CA); David Dalke (Rancho Santa Margarita, CA); Ammar Al-Ali (San Juan Capistrano, CA); Mohamed K Diab (Ladera Ranch, CA); Marcelo M. Lamego (Cupertino, CA)
Assignee: Willow Laboratories, Inc.
G16H40/67A61B5/0022A61B5/0205A61B5/02416A61B5/0261A61B5/0295A61B5/14532A61B5/14546A61B5/1455A61B5/14551A61B5/14552A61B5/1495A61B5/6815A61B5/6826A61B5/6829A61B5/6832A61B5/6838A61B5/7221A61B5/7246A61B5/7275A61B5/7278A61B5/7405A61B5/742A61B5/746A61B5/7475G16H10/40A61B1/00A61B5/02427A61B2562/08A61B2562/085A61B2562/185A61B2562/222Y10S439/909
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Quick Facts
Patent No.
US 12,230,393
App. No.
18/059,679
Filed
Nov 29, 2022
Granted
Feb 18, 2025
Kind
B2
Art Unit
3791
USPC
600/324
Abstract

A physiological sensor has light emitting sources, each activated by addressing at least one row and at least one column of an electrical grid. The light emitting sources are capable of transmitting light of multiple wavelengths and a detector is responsive to the transmitted light after attenuation by body tissue.

Claims (13)

1. A physiological monitoring device comprising:

at least two groups of LEDs coupled to a substrate, the at least two groups of LEDs configured to emit light of at least two different wavelengths, wherein each group comprises at least a plurality of LEDs, wherein a thermal mass of the substrate stabilizes a bulk temperature of the at least two groups of LEDs;

at least one detector configured to detect at least a portion of the light emitted from the at least two groups of LEDs after at least a portion of the light has been attenuated by tissue, the at least one detector configured to output at least one signal responsive to the detected light;

a substrate temperature sensor coupled to the substrate, wherein the substrate temperature sensor is configured to measure a temperature of the substrate and wherein the temperature of the substrate is responsive to the bulk temperature of the at least two groups of LEDs; and

at least one hardware processor configured to:

control an operating condition of the physiological monitoring device based on the bulk temperature of the at least two groups of LEDs; and

process one or more signals responsive to the outputted at least one signal to determine a physiological parameter of a user responsive to the one or more signals.

2. The physiological monitoring device of claim 1 wherein the operating condition comprises a mode of operating one or more of the at least two groups of LEDs in at least one operating wavelength.

3. The physiological monitoring device of claim 2 wherein the operating condition is controlled by modifying a drive current for at least one of the at least two groups of LEDs.

4. The physiological monitoring device of claim 1 comprising at least one input configured to control an operating condition of the physiological monitoring device.

5. The physiological monitoring device of claim 1 wherein the substrate comprises a plurality of layers.

6. The physiological monitoring device of claim 5 , wherein at least one of the plurality of layers comprises metalized portions.

7. The physiological monitoring device of claim 6 wherein the metalized portions comprise the thermal mass.

Assignments (3)
CHANGE OF NAME Recorded Sep 19, 2024
From: MASIMO LABORATORIES, INC.
To: CERCACOR LABORATORIES, INC.
Reel/Frame 069001/0754 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 19, 2024
From: SMITH, ROBERT A.; DALKE, DAVID; AL-ALI, AMMAR; DIAB, MOHAMED K.; LAMEGO, MARCELO M.
To: MASIMO LABORATORIES, INC.
Reel/Frame 068640/0909 →
CHANGE OF NAME Recorded May 16, 2024
From: CERCACOR LABORATORIES, INC.
To: WILLOW LABORATORIES, INC.
Reel/Frame 067455/0298 →
Continuity (12)
Continuation 17224833 · Apr 7, 2021
Continuation 16437611 · Jun 11, 2019
Continuation 15694541 · Sep 1, 2017
Continuation 14472760 · Aug 29, 2014
Continuation 13776065 · Feb 25, 2013
Continuation 12422915 · Apr 13, 2009
Continuation 11367013 · Mar 1, 2006
Provisional Application 60657759 · Mar 1, 2005
Provisional Application 60657268 · Mar 1, 2005
Provisional Application 60657596 · Mar 1, 2005
Provisional Application 60657281 · Mar 1, 2005
Related Publication 20230238130A1 · Jul 27, 2023
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