Curved surgical instruments and method of mapping a curved path for stereotactic surgery
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United States of America Patent
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-
Mar 2, 2004
Grant Date -
Aug 7, 2003
app pub date -
Jul 12, 1999
filing date -
Feb 27, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The method of mapping a curved path for stereotactic surgery involves the selection of a helical-shaped path. The first step is to obtain an accurate image of the pertinent structures of the patient's internal areas. The image includes the lesion or target region and a potential opening site. Using the image, the non-target areas surrounding the lesion area are determined and evaluated for the medical acceptability of passing through them. A curved path which is substantially helical in shape is then selected within the image such that the curve avoids these non-target areas but intersects the target region and the opening site. The corresponding surgical instrument which will be used to follow the selected curved path has a rigid body having a shape which is substantially identical to the path.
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