IMPLANTABLE CARDIAC STIMULATOR WITH AUTOMATIC GAIN CONTROL
An implantable cardiac stimulator for detecting and treating bradycardias includes a sense amplifier responsive to sensed cardiac signals for detecting cardiac activity. The sense amplifier includes an automatic gain control amplifier, a filter and quad comparator having a pair of signal channels to...
Saved in:
Main Authors | , , |
---|---|
Format | Patent |
Language | English French |
Published |
22.02.1994
|
Edition | 5 |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | An implantable cardiac stimulator for detecting and treating bradycardias includes a sense amplifier responsive to sensed cardiac signals for detecting cardiac activity. The sense amplifier includes an automatic gain control amplifier, a filter and quad comparator having a pair of signal channels to establish sensing thresholds, margins and signal gain. The sense amplifier has a feedback loop containing a microprocessor which implements preselected algorithms in conjunction with the outputs of the quad comparator to variably adjust the amplifier gain and to programmably control the sensing margin. |
---|---|
Bibliography: | Application Number: CA19890596531 |