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

1997-03-13

1998-11-24

Casler, Brian

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

A61B 505

Patent

active

058400249

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 such that forms of the respective magnetic-field generating elements or the respective magnetic-field detecting elements are not changed. Magnetic-field generation or magnetic-field detection is not changed even when an insertion part is bent. 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.

REFERENCES:
patent: 4173228 (1979-11-01), Van Steenwyk et al.
patent: 4176662 (1979-12-01), Frazer
patent: 4821731 (1989-04-01), Martinelli et al.
patent: 5273025 (1993-12-01), Sakiyama et al.

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