Surgical implement detector utilizing a powered marker

Details Surgical implement detector utilizing a powered marker Surgical implement detector utilizing a powered marker

1992-03-25

1993-03-02

Cohen, Lee S.

Surgery

Miscellaneous

Devices placed entirely within body and means used therewith

128903, 604362, 606 1, A61B 1900

Patent

active

051900599

ABSTRACT:
An apparatus for detecting a surgical implement in human or animal tissue has structure for defining a transmitting zone encompassing a surgical wound in the tissue. A battery powered marker is secured to a surgical implement positioned within the wound. Field generating structure is provided for generating within the transmitting zone an electromagnetic field having a predetermined frequency band. A signal generator generates a signal having a predetermined frequency band. The signal generator is operative to cause the field generating structure to generate the electromagnetic field, providing the marker with signal identity. A detector having an antenna located within the transmitting zone of the marker detects the marker signal irrespective of the marker's orientation therewithin.

REFERENCES:
patent: 4114601 (1978-09-01), Abels
patent: 4193405 (1980-03-01), Abels
patent: 4196734 (1980-04-01), Harris
patent: 4658818 (1987-04-01), Miller, Jr. et al.
patent: 4719919 (1988-01-01), Marchosky et al.
patent: 5107862 (1992-04-01), Fabian et al.

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