Biosignal measurement modules and methods
US8239009B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2009 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Dec 10, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2560/0468
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A biosignal measurement module is provided and includes a biosignal measurement unit, a pose detection unit, and a processing unit. The biosignal measurement unit measures an electrocardiogram signal and a pulse signal of a subject. The pose detection unit detects a position of the biosignal measurement module and outputs position signals. The processing unit receives the electrocardiogram signal, the pulse signal, and the position signals. The processing unit generates a height variation parameter, which indicates the height difference between the position of the biosignal measurement module and a reference position, according to the position signals. The processing unit calculates a current pulse transit time according to the electrocardiogram signal and the pulse signal and compensates for the current pulse transit time according to the height variation parameter to obtain a compensated pulse transit time. The processing unit obtains a blood pressure signal according to the compensated pulse transit time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.