Method and device for determining access to a subsurface target
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United States of America Patent
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Dec 7, 2004
Grant Date -
Feb 20, 2003
app pub date -
Jun 15, 1999
filing date -
Jun 15, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A targeting device defines a direction of approach to a subsurface target under guidance of imaging equipment such as a computer tomograph or a magnetic resonance imaging machine. The targeting device is positioned relative to the target in such a way that the optimal direction of approach avoiding vital internal structures can be selected by reference to the images displayed on the imagine equipment. The device projects a visible light beam, such as a laser beam, on a region of a patient, indicating the point of entry and the angle of approach to the subsurface target.
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