Fiducial marker devices and methods
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United States of America Patent
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app pub date -
Jun 4, 2003
filing date -
Jul 29, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
This document discusses, among other things, a fiducial markers capable of use in image guided surgery (IGS) procedures, such as neurosurgery, or other applications. One example includes a positioning instrument with a cap that mates directly to an imageable sphere to perform registration. Another example includes a jointed positioning instrument that, when placed in a base, pivots about a location defined by a center of the imageable sphere when it was in the base. Another example includes a fiducial marker with two imageable spheres defining a line intersecting a desired point on the base. Another example includes a base with a receptacle for receiving a positioning instrument. Another example includes an imageable sphere with a removable imageable portion to allow access to a center of the imageable sphere by a positioning instrument.
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