Medical and surgical implement detection system

Details Medical and surgical implement detection system Medical and surgical implement detection system

1976-08-09

1978-09-19

Howell, Kyle L.

Surgery

Truss

Perineal

128296, 128303R, A61B 1900

Patent

active

041146018

ABSTRACT:
A method by which surgical implements, surgical instruments, surgical sponges, surgical implantable devices and indwelling therapeutic devices and materials may be detected within the human body or other area of interest by incorporating or adding a radiofrequency transponder. Non-linear mixing of two frequencies in a radiofrequency transponder is used. The transponder may be a small film deposition of Ferrite material exhibiting gyro-magnetic resonance at selected frequencies or a solid state device.

REFERENCES:
patent: 2958781 (1960-11-01), Marchal et al.
patent: 3229684 (1966-01-01), Nagumo et al.
patent: 3587583 (1971-06-01), Greenberg
patent: 3698393 (1972-10-01), Stone
patent: 3836960 (1974-09-01), Gehman et al.
patent: 3853117 (1974-12-01), Murr
patent: 3873981 (1975-03-01), Bloice
patent: 3964041 (1976-06-01), Hinds

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