His bundle cardiography

Details His bundle cardiography His bundle cardiography

1979-02-14

1981-04-14

Kamm, William E.

Surgery

Truss

Pad

A61B 504

Patent

active

042613698

ABSTRACT:
A non-invasive technique for monitoring the atrioventricular His bundle electrocardiogram and recording the same on a strip chart recorder in parallel real time with a conventional surface ECG signal. The preferred embodiment of the His bundle circuitry includes separately adjustable highpass and lowpass filters in the frequency range of 30 to 600 Hz, and a variable gain amplifier for in situ empirical adjustment to patient and environmental conditions.

REFERENCES:
patent: 4157711 (1979-06-01), Yotam et al.
Berbari et al., "Circulation", vol. 48, Nov. 1973, pp. 1005-1012.
Flowers et al., "American Journal of Cardiology", vol. 33, Mar. 1974, pp. 384-389.
Wajszczuk et al., "Circulation", vol. 58 #1, Jul. 1978, pp. 95-102.
Mauser, "Electronik", vol. 26, No. 2, Feb. 1977, pp. 51-54.
Duffin, Jr. et al., "Proceedings of the 23rd Annual Conference on Engineering in Medicine & Biology", Wash., D.C., 16-19, Nov. 1970, p. 193.
Siegel et al., "IEEE Transactions on Biomedical Engineering", vol. 22, No. 4, Jul. 1975, pp. 269-274.

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