Surgery – Truss – Pad
Patent
1987-12-08
1989-12-05
Cohen, Lee S.
Surgery
Truss
Pad
128419P, A61N 136
Patent
active
048845752
ABSTRACT:
A cardiac pacemaker pulse generator is adapted to .generate electrical stimuli at a first pacing rate, and to selectively increase the rate to a second higher pacing rate. A timer triggers the rate increase to establish the higher rate as an exercise rate folloing the passage of a preset period of time after the timer is enabled. An external magnet controlled by the patient activates a reed switch to enable the timer to commence timing. The pulse generator is further adapted to respond to a second pass of the magnet over the reed switch after enabling of the timer to thereupon disable the timer before the preset period of time has expired. If the second pass of the magnet occurs after the exercise rate has begun, the element for increasing the rate is disabled to return the pulse generator to the lower pacing rate. The change in pacing rates is made in steps.
REFERENCES:
patent: 3311111 (1967-03-01), Bowers
patent: 3623486 (1971-11-01), Berkovits
patent: 3693627 (1972-09-01), Berkovits
patent: 3698398 (1972-10-01), Berkovits
patent: 4124031 (1978-11-01), Mensink et al.
patent: 4304237 (1981-12-01), Mensink
patent: 4365633 (1982-12-01), Loughman et al.
patent: 4388929 (1983-06-01), Renine et al.
Cohen Lee S.
Getzow Scott
Intermedics Inc.
Merkling John R.
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