Electrode assembly for sensing heart activity

Details Electrode assembly for sensing heart activity Electrode assembly for sensing heart activity

1978-04-24

1979-12-25

Cohen, Lee S.

Surgery

Truss

Pad

A61B 504

Patent

active

041800800

ABSTRACT:
An electrode assembly for sensing heart activity from body tissue includes a flexible guide tube, a spiral retaining coil disposed in one end of the guide tube, a handle disposed at the other end of the guide tube, and twisted wires inside the tube interconnecting the retaining coil and the handle. Rotation of the handle rotates the twisted wires, which in turn rotate the retaining coil to screw it into body tissue. A safety stop releasably disposed on the guide tube limits the rotation of the retaining coil and thus limits its depth of penetration into the body tissue. After the handle is rotated a preselected amount, the handle is automatically disengaged from the twisted wires.

REFERENCES:
patent: 3416534 (1968-12-01), Quinn
patent: 3750650 (1973-08-01), Ruttgers
patent: 3827428 (1974-08-01), Hon et al.
patent: 3986497 (1976-10-01), Dali
patent: 4000745 (1977-01-01), Goldberg
Hon et al., "Electronic . . . Fetal Heart Rate," Ob. & Gyn, vol. 40, No. 3, Sep. '72, pp. 362-365.

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