Process and device for detecting the response of the heart to an

Details Process and device for detecting the response of the heart to an Process and device for detecting the response of the heart to an

1983-09-09

1985-08-27

Kamm, William E.

Surgery

Truss

Pad

128419PG, 128708, A61B 502, A61N 136

Patent

active

045372012

ABSTRACT:
The present invention relates to a process and device for detecting the response of the heart to an electrical stimulation pulse, comprising: collecting, after the end of the stimulation pulse, a first signal v which represents the electrode potential in open circuit and of which the variation in time t, from an original instant t.sub.o is of substantially logarithmic form: ##EQU1## v.sub.o being the value of v at instant t.sub.o and k being a parameter connected in particular with the duration and amplitude of the stimulation pulse, converting the first signal v into a second signal of which the variation in time is substantially linear and, detecting in said second signal a non-linear component representing the signal produced by the provoked contraction of the heart.

REFERENCES:
patent: 3495077 (1970-02-01), Hiltz et al.
patent: 3699947 (1972-10-01), Maynard
patent: 3878833 (1975-04-01), Arneson et al.
patent: 4114627 (1978-09-01), Lewyn et al.

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