EKG and ultrasonoscope display

Details EKG and ultrasonoscope display EKG and ultrasonoscope display

1977-01-17

1979-05-15

Michell, Robert W.

Surgery

Truss

Pad

128700, 128712, A61B 502

Patent

active

041542304

ABSTRACT:
A system is disclosed which permits simultaneous display of an EKG waveform in real time in conjunction with a two-dimensional cross-sectional image of the heart, so that the EKG waveform can be directly compared with dimensional changes in the heart. The apparatus of the invention includes an ultrasonoscope for producing a C-scan cross-sectional image of the heart. An EKG monitor circuit along with EKG logic circuitry is combined with the ultrasonoscope circuitry to produce on the same oscilloscope screen a continuous vertical trace showing the EKG waveform simultaneously with the heart image. The logic circuitry controls the oscilloscope display such that the display of both heart and EKG waveforms occurs on a real time basis.

REFERENCES:
patent: 3624744 (1971-11-01), Manger
patent: 3744479 (1973-07-01), Stein et al.
patent: 3816791 (1974-06-01), Fluegel
patent: 3902476 (1975-09-01), Hileman
patent: 3936791 (1976-02-01), Kossoff
patent: 3954098 (1976-05-01), Dick et al.
patent: 4045815 (1976-02-01), Griffith et al.
Kikuchie, Y. et al., "Ultra-Sono-Cardio-Tomography," Japan Electronic Engr., Oct. 1970, No. 47, pp. 53-60.
Hertz, C. H., "Ultrasonic Engineering in Heart Diagnosis," Amer. Jrnl. of Cardiology, vol. 19, Jan. 1967, pp. 6-17.

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