Surgical navigation system and method using audio feedback
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United States of America Patent
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Jul 4, 2000
Grant Date -
N/A
app pub date -
Jan 20, 1998
filing date -
Jan 21, 1997
priority date (Note) -
Expired
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Abstract
A computer based system and method is disclosed for positional guidance in real-time surgical applications using audio feedback. The invention is based on translating the 5 spatial parameters of a surgical instrument or device, such as its position and velocity with respect to a given coordinate system, into a set of audio feedback parameters along the coordinates of a generalized audio space. Error signals which correspond to deviations of the actual instrument trajectory from an optimal trajectory stored in a computer memory are translated into a set of audio signals that indicate to the user whether correction is required. Accordingly, the system and method can be used in a variety of applications that require accurate special positioning. The audio feedback system and method of this invention employ a rich and comparatively unburdened sensory modality in the operating room and can be practiced independent from or along with standard visually-oriented systems and techniques used in medical pre-planning and/or virtual reality devices.
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