Battery test circuit for a heart pacemaker
US4686990A · kind A · utility
22Cited by
9References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1986 |
| Grant date | Aug 18, 1987 |
| Priority date | — |
| Expiry date | Sep 17, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3708
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A battery test circuit for a heart pacemaker generates a signal which corresponds to the charge status of the pacemaker battery which is displayable in a manner which does not interfere with the normal pacing frequency of the pacemaker. A marking pulse is generated by the circuit at a chronological position between successive stimulation pulses which is dependent upon the charge status of the battery at the time the marking pulse is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.