Implantable cardiac stimulator having therapeutic diagnostic functions
US4418695A · kind A · utility
Inventor
Key dates
| Filing date | Feb 18, 1981 |
| Grant date | Dec 6, 1983 |
| Priority date | — |
| Expiry date | Feb 18, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/365
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable cardiac stimulator having terminals for connections with a cardiac probe comprises an amplifier for receiving and amplifying a signal received from the probe, a band pass filter for filtering the output of the amplifier and a level detector which responds to a predetermined level of the amplified and filtered signal. A logic module comprising a clock, a microprocessor and a memory is connected with the level detector and with a magnetically operable control switch which can be actuated by a permanent magnet outside the body. The stimulator automatically performs the normal therapeutic function of palliating the patients cardiac insufficiencies and also provides means for monitoring operation of the stimulator and the condition and degree of dependency of the patient on the stimulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.