Detectable medical and surgical implements

Details Detectable medical and surgical implements Detectable medical and surgical implements

1978-06-09

1980-03-18

Michell, Robert W.

Surgery

Respiratory method or device

Ozone or ion generation

128303R, A61F 1300

Patent

active

041934059

ABSTRACT:
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 or more frequencies in a radiofrequency transponder is used. The transponder may be a small film deposition of Ferrite material exhibiting gyromagnetic resonance at selected frequencies or a solid state device.

REFERENCES:
patent: 3097649 (1963-07-01), Gray
patent: 3698393 (1972-10-01), Stone
patent: 3834390 (1974-09-01), Hirsch
patent: 3853117 (1974-12-01), Murr
patent: 4065753 (1977-12-01), Paul, Jr.
patent: 4114601 (1978-09-01), Abels

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