Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1992-03-02
1995-06-13
Cohen, Lee S.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
A61N 1362
Patent
active
054238676
ABSTRACT:
A programmable offset is added to an automatically generated baseline reference value to provide a Threshold value used by the rate-responsive sensor processing circuits of an implantable rate-responsive pacemaker to determine the significance of a sensor input signal. The rate-responsive pacemaker provides stimulation pulses on demand at a pacing rate determined by a sensed physiological parameter. The physiological parameter is sensed by a physiological sensor included within, or coupled to, the rate-responsive pacemaker. The physiological sensor generates a sensor input signal having a magnitude that varies as a function of the sensed physiological parameter. The invention provides a way for the rate-responsive pacemaker, when operating in an autothreshold mode, to automatically determine when the magnitude of the sensor input signal is sufficiently large to justify an increase in the pacing rate. A long-term running average of the sensor input signal is continuously maintained, and is used as a baseline threshold value. A programmable offset is added to the baseline reference value. Any sensor input signal that exceeds the baseline reference value plus the programmable offset is considered to be sufficiently large to effect an increase in the pacing rate.
REFERENCES:
patent: 3757792 (1973-09-01), Mulier et al.
patent: 3949758 (1976-04-01), Jirak
patent: 4240442 (1980-12-01), Andresen et al.
patent: 4809697 (1989-03-01), Causey, III et al.
patent: 4884576 (1989-12-01), Alt
patent: 4940052 (1990-07-01), Mann et al.
patent: 4940053 (1990-07-01), Mann et al.
patent: 4972834 (1990-11-01), Begemann et al.
patent: 5010887 (1991-04-01), Thornander
patent: 5040534 (1991-08-01), Mann et al.
patent: 5040535 (1991-08-01), Mann et al.
patent: 5074302 (1991-12-01), Poore et al.
patent: 5101824 (1992-04-01), Lekholm
patent: 5154170 (1992-10-01), Bennett et al.
Mann Brian M.
Medlin Roy B.
Poore John W.
Cohen Lee S.
Miller Leslie S.
Pacesetter Inc.
Parker Marianne
Weinberg Lisa P.
LandOfFree
Rate-responsive pacemaker having automatic sensor threshold with does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rate-responsive pacemaker having automatic sensor threshold with, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rate-responsive pacemaker having automatic sensor threshold with will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1306522