Externally-inhibited tachycardia control pacer
US4488554A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1982 |
| Grant date | Dec 18, 1984 |
| Priority date | — |
| Expiry date | Jul 26, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/37217
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tachycardia control pacer for which placing a magnet over the patient's chest results in the generation of two pulses, the time separation between which is an indication of the battery potential. Application of the magnet in this way also holds the device off, after the two pulses are generated, so that if the device is causing him discomfort the patient can temporarily disable it until the physician can program it off. Application of a magnet to the patient's chest, or programming of the device, resets two scanned inter-pulse time intervals to the values programmed by the physician. The next scanning begins with the programmed time values. In this way the physician, after inducing tachycardia, can verify the programmed time parameters rapidly by observing the patient's ECG waveform, without having to wait several minutes until scanning from the previously retained successful values would otherwise progress to the programmed values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.