Equipment for determining the position of a metal body in a medi

Details Equipment for determining the position of a metal body in a medi Equipment for determining the position of a metal body in a medi

1983-06-10

1985-11-12

Howell, Kyle L.

Surgery

Truss

Perineal

128 92A, 128774, 324233, 324243, A61B 504

Patent

active

045521344

ABSTRACT:
The equipment for determining the position of a metal pin in a bone comprises a support, a radiating self-induction coil mounted on the support and two receiving self-induction coils mounted on the support. A receiving coil is arranged on either side of the radiating coil but the space between the receiving coils facing the radiating coil remains free. The radiating coil is supplied by an oscillator with a frequency of about 30 kHz. The receiving coils control signaling members according to the phase-shift of signals generated by the receiving coils.

REFERENCES:
patent: 3305711 (1967-02-01), Quittner
patent: 3371272 (1968-02-01), Stanton
patent: 3827291 (1974-08-01), McCalvey
patent: 4088952 (1978-05-01), Sikora
patent: 4270545 (1981-06-01), Rodler
patent: 4303883 (1981-12-01), Mori et al.
patent: 4371836 (1983-02-01), Nickel et al.
patent: 4445501 (1984-05-01), Bresler

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