Method and apparatus for detecting weak physiological signals
US6942621B2 · kind B2 · utility
51Cited by
9References
32Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 11, 2002 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | Feb 22, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2562/043
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus are provided for measuring a weak physiological signal in the presence of stronger signals. The method and apparatus utilize motion sensing devices placed on or about the patient to obtain a motion data set from each motion sensing device describing the aggregate detected motion. The data sets are synchronized and then used to solve a set of simultaneous equations which allows for the separation of the various motion components which may include such components of interest as fetal heart motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.