Position tracking and imaging system with error detection for us

Details Position tracking and imaging system with error detection for us Position tracking and imaging system with error detection for us

1996-04-24

1997-10-14

Dawson, Glenn

Surgery

Instruments

Stereotaxic device

606 1, A61B 1900

Patent

active

056766734

ABSTRACT:
A system for monitoring the position of a medical instrument with respect to a patient's body and for displaying at least one of a plurality of prerecorded images of said body responsive to the position of said medical instrument. In one embodiment the system includes a reference unit secured from movement with respect to the patient's body such that said reference unit is substantially immobile with respect to a target operation site. The system also includes a remote unit for attachment to the medical instrument. A field generator may be associated with one of the units for generating a position characteristic field in an area including the target operation site. One or more field sensors may be associated with either of the units responsive to the presence of the position characteristic field for producing one or more sensor output signals representative of said sensed field. A position detector in communication with the sensor output signal produces position data representative of the position of the remote unit with respect to the reference unit. An output display in communication with the position detector displays at least one of the prerecorded images responsive to the position data.

REFERENCES:
patent: 5186174 (1993-02-01), Schlondorff et al.
patent: 5230623 (1993-07-01), Guthrie et al.
patent: 5251127 (1993-10-01), Raab
patent: 5257998 (1993-11-01), Ota et al.

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