The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 2013
Filed:
Aug. 28, 2012
Daisuke Sano, Yokohama, JP;
Hirotaka Akiba, Hino, JP;
Hiroyuki Ushifusa, Tama, JP;
Kyoko Hiyama, Hachioji, JP;
Tomohiko Oda, Kawagoe, JP;
Daisuke Sano, Yokohama, JP;
Hirotaka Akiba, Hino, JP;
Hiroyuki Ushifusa, Tama, JP;
Kyoko Hiyama, Hachioji, JP;
Tomohiko Oda, Kawagoe, JP;
Olympus Medical Systems Corp., Tokyo, JP;
Abstract
A probe shape detection apparatus includes a magnetic field sensing section for sensing a magnetic field generated by an electromagnetic coil in a flexible probe, a movement speed calculation section for calculating a movement speed of the coil, a coordinate computation section for calculating three-dimensional coordinates of the coil based on the sensed magnetic field, a moving average coordinate calculation section for calculating moving average coordinates of the coil, a comparison section for comparing the calculated movement speed with a predetermined threshold, a coil coordinate setting section for setting one of the moving average coordinates and the three-dimensional coordinates calculated by the coordinate computation section as the three-dimensional coordinates of the coil, based on a comparison result of the calculated moving speed, and a signal processing section for generating a video signal to display a shape of the probe, based on the set three-dimensional coordinates of the coil.