Storage in a pacemaker memory
US4716903A · kind A · utility
169Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1986 |
| Grant date | Jan 5, 1988 |
| Priority date | — |
| Expiry date | Oct 6, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/37252
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable pacemaker which stores in memory the representation of an ECG signal by compressing the data. Whenever the input signal changes by a threshold amount from the last time data was recorded, a representation of the time interval which has elapsed is recorded. In a maximimally efficient system, the only information which must be stored are the successive elapsed times, along with indications of when the input signal changes slope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.