IP Library › Granted Patent US 12,357,181
Granted Patent B2
US 12,357,181 · App. 18/537,615 · Granted Jul 15, 2025

Modulated physiological sensor

Inventors: Marcelo Lamego (Cupertino, CA); Cristiano Dalvi (Lake Forest, CA); Hung Vo (Fountain Valley, CA)
Assignee: Masimo Coporation
A61B5/0051A61B5/4884A61B5/6843A61B2562/0219
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Quick Facts
Patent No.
US 12,357,181
App. No.
18/537,615
Granted
Jul 15, 2025
Kind
B2
Abstract

A modulated physiological sensor is a noninvasive device responsive to a physiological reaction of a living being to an internal or external perturbation that propagates to a skin surface area. The modulated physiological sensor has a detector configured to generate a signal responsive to the physiological reaction. A modulator varies the coupling of the detector to the skin so as to at least intermittently maximize the detector signal. A monitor controls the modulator and receives an effectively amplified detector signal, which is processed to calculate a physiological parameter indicative of the physiological reaction.

Claims (10)

1. A modulated physiological sensor comprising:

an accelerometer configured to generate a physiological signal responsive to a physiological process corresponding to a user, wherein the accelerometer is configured to be coupled to a skin surface of the user; and

a modulator including a vibrator configured to generate an external acoustic wave separate from the physiological signal to modulate the physiological signal, wherein the modulated physiological signal improves a measurement of a physiological parameter compared to the physiological signal.

2. The modulated physiological sensor according to claim 1 wherein the modulator is a vibration element that mechanically accentuates the coupling of the accelerometer to the skin surface.

3. The modulated physiological sensor according to claim 2 further comprising a substrate that co-mounts the accelerometer and the vibration element.

4. The modulated physiological sensor according to claim 3 further comprising an attachment that releasably affixes the substrate, accelerometer and vibration element to the skin surface.

5. The modulated physiological sensor according to claim 4 , further comprising an optical sensor.

6. The modulated physiological sensor according to claim 5 wherein the vibration element is a coin motor.

7. The modulated physiological sensor according to claim 6 wherein the substrate is a circuit board that mechanically mounts and electrically interconnects the accelerometer and the coin motor.

8. The modulated physiological sensor according to claim 7 wherein the attachment is a tape having a sticky side that attaches to the skin surface and a housing side that encloses the circuit board.

Continuity (6)
Continuation 17208501 · Mar 22, 2021
Continuation 15729240 · Oct 10, 2017
Continuation 13584447 · Aug 13, 2012
Provisional Application 61639985 · Apr 29, 2012
Provisional Application 61524744 · Aug 17, 2011
Related Publication 20240180426A1 · Jun 6, 2024
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