Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 31, 2010
Patent Application Number
10265555
Date Filed
October 8, 2002
Patent Citations Received
Patent Primary Examiner
Patent abstract
Surgical implements used during an operating procedure are detected in human tissue. Markers attached to the surgical implements change their impedance at a preselected frequency in the presence of an electromagnetic field. Each of the markers is thereby provided with signal-identifying characteristics. The signal-identifying characteristics are detected outside the operating room in an accurate, reliable manner. Potential interference with operating room electronic instrumentation is avoided, the possibility of operator error is reduced and system cost and space requirements are substantially lowered.
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