Endoscope form detecting apparatus in which coil is fixedly moun

Details Endoscope form detecting apparatus in which coil is fixedly moun Endoscope form detecting apparatus in which coil is fixedly moun

1995-06-02

2000-05-09

Casler, Brian L.

Surgery

Endoscope

With means for indicating position, depth or condition of...

600424, A61B 100

Patent

active

060597186

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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