Cardiac amplifier system with low transient fast switching
US4331158A · kind A · utility
8Cited by
2References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 21, 1980 |
| Grant date | May 25, 1982 |
| Priority date | — |
| Expiry date | Aug 21, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/902
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cardiac amplifier system with several patient electrodes includes an amplifier with a capacitor coupled input and a switch for coupling different ones of the patient electrodes to the amplifier. A circuit including a time delay, a pair of sequentially operated controlled conduction devices and a resistive network shunts the amplifier input and charges the coupling capacitors in a controlled fashion when the selector switch is operated to prevent switching transients from being applied to the amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.