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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Issued Date -
Apr 8, 2004
app pub date -
May 28, 2003
filing date -
Feb 27, 1996
priority date (Note) -
Abandoned
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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 toobtain an accurate image of the pertinent structures of the patient's internal areas. The image includes the lesion or target region (15) and potential opening site. Using the image, the non-target areas (16, 17, 19) surrounding the lesion area (15) are determined and evaluated for the medical acceptability of passing through them. A curved path (H) which is substantially helical in shape is then selected within the image such that the curved path (H) avoids these non-target areas (16, 17, 19), but intersects the target region (15) and the opening site. The corresponding surgical instrument (65) which will be used to follow the path has a rigid body (H) having a shape which is substantially identical to the path.
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