Medical instrument

Details Medical instrument Medical instrument

1983-12-22

1986-03-25

Cohen, Lee S.

Surgery

Truss

Pad

A61B 504

Patent

active

045776350

ABSTRACT:
A medical instrument for monitoring fetal heart rate and having an electrode for insertion by rotation in the fetal head, and a torque limiting device for preventing over-penetration of the electrode. The torque limiting device is preferably a helical spring rotatable with the electrode at low torque and arranged to disengage from frictional driving contact at the torque limit.

REFERENCES:
patent: 4180080 (1979-12-01), Murphy
patent: 4301806 (1981-11-01), Helfer
patent: 4321931 (1982-03-01), Hon
patent: 4437467 (1984-03-01), Helfer et al.

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