Automatic threshold following cardiac pacer
US3949758A · kind A · utility
48Cited by
5References
40Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 1, 1974 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | Aug 1, 1994 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/3712
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In a cardiac pacer including a source of timed pulses and means responsive to the timed pulses for providing controlled energy cardiac stimulating pulses, the improved apparatus including means for successively decreasing the energy of the cardiac stimulating pulses after every n pulses from the timed pulse source, n being a number greater than 1. The apparatus may also include means for increasing the energy of the cardiac stimulating pulses in the absence of a driven heartbeat and, in a preferred embodiment, may include additional apparatus to prevent loss of a heartbeat on loss of capture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.