Vital signs monitor using an optical ear-based module
US7658716B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2004 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Dec 7, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/6816
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention provides a system for measuring blood pressure from a patient that includes: 1) an optical module configured to be worn on the patient's ear and comprising at least one optical source and a photodetector; 2) a calibration source configured to make a blood pressure measurement; and, 3) a processing module configured to: i) receive a first signal from the optical module; ii) receive a second signal from the calibration source; iii) process the first and second signals to generate a calibration table; and iv) receive a third signal from the optical module and compare it to the calibration table to determine the patient's blood pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.