Detecting capacitively coupled ECG baseline shift

Details Detecting capacitively coupled ECG baseline shift Detecting capacitively coupled ECG baseline shift

1978-08-18

1980-03-25

Kamm, William E.

Surgery

Truss

Pad

128902, A61B 504

Patent

active

041945115

ABSTRACT:
In an electrocardiographic system there is a multielement electrode at two skin locations for providing an ECG signal of negligible magnitude between elements because of the close spacing while the pair of elements are sufficiently separated so that the motion of one element is at least partially independent of the motion of the other. Parallel ECG signals are obtained from different elements of two multielement electrodes. The difference between the signals is detected by logical circuitry to produce a signal indicating baseline shift. The elements are coaxial with a 250 K resistor in series with each outer element.

REFERENCES:
patent: 3495584 (1970-02-01), Schwalm
patent: 3608543 (1971-09-01), Longini et al.
patent: 3868947 (1975-03-01), Holsinger
patent: 3903874 (1975-09-01), Shakespeare
patent: 4112930 (1978-09-01), Feldman et al.

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