Transducer for detecting apnea
US4971065A · kind A · utility
95Cited by
8References
1Claims
0Family size
Inventor
Key dates
| Filing date | Feb 11, 1985 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Feb 11, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/113
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A transducer element particularly adapted for use in an apnea detection system is formed of resilient conductive material having an electrical impedance which varies in response to breathing movement of an infant. A control detects the varying impedance and generates an alarm signal whenever variations caused by breathing movements fall below a predetermined level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.