Pacemaker with Hall effect externally controlled switch
US4301804A · kind A · utility
26Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1979 |
| Grant date | Nov 24, 1981 |
| Priority date | — |
| Expiry date | Nov 28, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/37211
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A body implantable cardiac pacemaker having a Hall effect switch which may be activated by a magnetic field in order to alter one or more pacemaker characteristics. A circuit in the pacemaker produces a strobe signal which is used to turn on a current flow through the Hall effect element once each pacemaker pulse cycle for a period of 25.mu. sec. The Hall effect element is part of an integrated circuit and is oriented in a plane parallel to the broad plane of the pacemaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.