SYSTEM AND METHOD FOR REAL TIME TRACKING AND MODELING OF SURGICAL SITE

摘要

A surgical site monitoring system and associated method of use employ a single scan-visible passive vectorized fiducial reference attached at a fiducial location near a surgical site. A passive vectorized tracking marker is attached to the fiducial reference. Passive vectorized tracking markers may also be attached to surgical implements used at the surgical site. A scan prior to a surgical procedure with the fiducial reference attached is used to obtain scan data of the surgical site. A tracker obtains image information about the tracking markers and surgical implements. The system and method employ the scan data and image information to track the surgery and the surgical implements relative to the surgical site. The system and method use either markings on or shapes of the tracking markers to determine from the image information the relative 3D locations and orientations of the surgical implements and fiducial reference. In some embodiments, changes in the surgical implements, for example drill bit changes, are also tracked during surgical procedures.

主权项

1. A position monitoring system for a surgical procedure, the surgical procedure occurring on a surgical site on a surgical patient, the system comprising:
a single passive vectorized scan-visible fiducial reference adapted to be fixed to a fiducial location proximate the surgical site of the surgical patient; a tracker configured to obtain image information within a field of view including at least a portion of the surgical site; a first passive vectorized tracking marker removably disposed within the field of view in a predetermined fixed position and orientation relative to the fiducial reference; and a controller having patient scan data from a scan of the surgical site and the fiducial reference when fixed to the fiducial location, the controller configured to receive the image information from the tracker and including a processor with memory and a software program having a series of instructions which when executed by the processor determines from the image information a current three-dimensional position and orientation of the first tracking marker, and relates the current position and orientation of the fiducial reference to the scan data based on the current three-dimensional position and orientation of the first tracking marker.