Frequency-controlled heart pacemaker

Details Frequency-controlled heart pacemaker Frequency-controlled heart pacemaker

1987-06-16

1988-08-16

Kamm, William E.

Surgery

Truss

Pad

A61N 136

Patent

active

047636556

ABSTRACT:
The stimulation frequency of a heart pacemaker is controlled dependent on a signal representative of the blood oxygen content of the patient. The blood oxygen dependent signal is generated by a blood oxygen sensor. A temperature sensor generates a separate signal dependent on blood temperature. The blood oxygen and blood temperature signals are combined such that the blood oxygen signal is lowered, i.e., the value thereof is reduced, in ranges of higher physical load indicated by an increase in the temperature dependent signal. The combined signal is used to control the stimulation frequency of a heart pacemaker so that the stimulation frequency is increased, if blood oxygen saturation is decreasing and/or blood temperature is increasing.

REFERENCES:
patent: 4201219 (1980-05-01), Bozal Gonzalez
patent: 4202339 (1980-05-01), Wirtzfeld et al.
patent: 4399820 (1983-09-01), Wirtzfeld et al.
patent: 4436092 (1984-03-01), Cook et al.
patent: 4594565 (1986-06-01), Barreras
patent: 4688573 (1987-09-01), Alt
patent: 4716887 (1988-01-01), Koning et al.

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