Sense amplifier for demand cardiac pacemaker
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 12, 1981
Grant Date -
N/A
app pub date -
Nov 6, 1978
filing date -
Nov 6, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cardiac pacemaker of the type responsive to heart activity to affect the operation of the pacemaker. Detecting circuitry detects the presence of signals representative of natural heart activity. In a preferred embodiment, bias circuitry establishes the sensitivity of the detecting circuit, the sensitivity being altered during the provision of an output signal to enhance the response of the detecting circuit to the natural heart activity representative signals. In essence, hysteresis is provided in that the sensitivity of the detecting circuit is increased during initiation of the output signal and reduced during termination of that signal.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully