Endoscope form detecting apparatus in which coil is fixedly mounted by insulating member so that form is not deformed within endoscope
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 9, 2000
Issued Date -
N/A
app pub date -
Jun 2, 1995
filing date -
Oct 18, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Magnetic-field generating elements or magnetic-field detecting elements are fixed into an insertion part having elasticity, which is inserted into a subject, by an insulating material while ensuring that forms of the respective magnetic-field generating elements or the respective magnetic-field detecting elements are not changed. Even when the insertion part is bent, there is no change in either the function of magnetic-field generation or the function of magnetic-field detection. Magnetic-field detecting elements or magnetic-field generating elements which are arranged at known positions around the subject are combined with each other to calculate three-dimensional positions of the magnetic-field generating elements or the magnetic-field detecting elements within the insertion part. Further, a form of the insertion part is estimated, and a three-dimensional image corresponding to a form of the insertion part is produced. Moreover, a three-dimensional image is projected onto a screen surface to display a stereoscopic image corresponding to the form of the insertion part.
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