Method and Apparatus for Continuous Vitals Monitoring - US12605078B2
Summary
USPTO granted Patent US12605078B2 to Rythmos LLC for a health monitoring device using fiber Bragg grating (FBG) sensors to detect physiological attributes. The device places FBG sensors in contact with skin near arteries or veins to measure refractive index changes and estimates physiological attributes based on strain-induced Bragg wavelength shifts. The patent contains 20 claims.
What changed
USPTO granted Patent US12605078B2 to Rythmos LLC for a continuous vitals monitoring device. The device uses two fiber Bragg grating sensors—one placed near an artery or vein and one as a baseline sensor placed away from blood vessels—to measure refractive index changes when pulsed with light. A physiological attribute estimator processes the Bragg wavelength shifts to determine health metrics using calibration curves.
Affected parties include medical device manufacturers and health monitoring technology developers who may need to assess whether this patent's claims create licensing requirements or design-around obligations for competing FBG-based monitoring products.
Archived snapshot
Apr 22, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Method and apparatus for continuous vitals monitoring
Grant US12605078B2 Kind: B2 Apr 21, 2026
Assignee
Rythmos LLC
Inventors
Manojeet Bhattacharya
Abstract
A health monitoring device for detecting a physiological attribute having a physiological attribute sensor including a first fiber Bragg grating (FBG) with a refractive index is configured to be placed in contact with a person's skin approximate to an artery or vein. A baseline sensor that includes a second fiber Bragg grating (FBG) also having a refractive index is configured to be placed in contact with a person's skin away from an artery or vein to provide a baseline refractive index. The device pulses light waves through the FBGs to provide a processor with reading of the refractive index from the FBGs. Based on the effective shifts of the Bragg wavelength due to axial strain on the FBGs, a physiological attribute estimator estimates a physiological attribute based on a calibration curve comparing a physiological attribute against strain.
CPC Classifications
A61B 5/02055 A61B 5/14532 A61B 5/14552 A61B 5/681 A61B 5/7425 A61B 5/021 A61B 5/02427 A61B 5/0002 A61B 5/01 A61B 5/1455 A61B 2560/0223 A61B 2560/0233
Filing Date
2022-10-28
Application No.
18050756
Claims
20
Parties
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