Apnea monitoring system
US4580575A · kind A · utility
80Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1984 |
| Grant date | Apr 8, 1986 |
| Priority date | — |
| Expiry date | Oct 12, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/086
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus for monitoring respiration and heartbeat and for processing electrical signals representative thereof, including circuits for developing a phase-shifted and amplitude-offset respiration signal for comparison with an original respiration signal for compensating for signal drift, and circuits for logically combining signals representative of the presence of respiration and heartbeat for eliminating certain false indications which may occur when only heartbeat exists.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.