Temperature responsive controller for cardiac pacer

Details Temperature responsive controller for cardiac pacer Temperature responsive controller for cardiac pacer

1986-06-11

1989-02-14

Jaworski, Francis

Surgery

Truss

Pad

128419P, A61N 100, H05G 0000

Patent

active

048039870

ABSTRACT:
A controller for variably controlling the pacing rate of a cardiac pacer responsive to temperature which includes a logic and control unit, a parameter communication unit, an analog to digital converter and a temperature sensor. The temperature sensor in the right ventricle or atrium communicates a value related to blood temperature through the analog to digital converter to the logic and control unit. The logic and control unit operates under control of the rate algorithm to calculate a pacing rate value related to variations in the blood temperature. The pacing rate value is calculated as the sum of a reference rate, a natural rate response term, and a dynamic rate response term which contributes rate only in response to physical activity. A step rate response is also added to the calculated pacing rate when predetermined criteria related to the blood temperature and calculated pacing rate indicate the onset of physical activity. Under the control of the rate algorithm, the controller also maintains the level and rate of change of the calculated pacing rate within predetermined limits, and prevents the pacing rate from remaining at the maximum rate limit after physical activity has ceased.

REFERENCES:
patent: 4344437 (1982-08-01), Markowitz
patent: 4393877 (1983-07-01), Imran et al.
patent: 4436092 (1984-03-01), Cook et al.
patent: 4543954 (1985-10-01), Cook et al.
patent: 4688573 (1987-08-01), Alt

Affiliated with

Also associated with

Rating

Temperature responsive controller for cardiac pacer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Temperature responsive controller for cardiac pacer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature responsive controller for cardiac pacer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1360463