PROBE-SHAPE DETECTING APPARATUS AND PROBE-SHAPE DETECTING METHOD

Title:

PROBE-SHAPE DETECTING APPARATUS AND PROBE-SHAPE DETECTING METHOD

Document Type and Number:

WIPO Patent Application WO/2012/002206

Kind Code:

A1

Abstract:

Disclosed is a probe shape detecting apparatus, which is provided with: a magnetic field detecting section, which detects a magnetic field generated by an electromagnetic coil in a flexible probe; a coordinate calculating section, which calculates the three-dimensional coordinates of the electromagnetic coil, on the basis of the detected magnetic field; a moving speed calculating section, which calculates the moving speed of the electromagnetic coil, on the basis of the calculated three dimensional coordinates; a moving average coordinate calculating section, which calculates the moving average coordinates of the electromagnetic coil; and a coil coordinate setting section, which sets, as the three-dimensional coordinates of the electromagnetic coil, the moving average coordinates or the three-dimensional coordinates calculated by the coordinate calculating section, corresponding to the results of comparison between the calculated moving speeds.

Inventors:

SANO DAISUKE (JP)
AKIBA HIROTAKA
USHIFUSA HIROYUKI
HIYAMA KYOKO
ODA TOMOHIKO

Application Number:

PCT/JP2011/064225

Publication Date:

January 05, 2012

Filing Date:

June 22, 2011

Export Citation:

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Assignee:

OLYMPUS MEDICAL SYSTEMS CORP (JP)
SANO DAISUKE (JP)
AKIBA HIROTAKA
USHIFUSA HIROYUKI
HIYAMA KYOKO
ODA TOMOHIKO

International Classes:

A61B1/00; G02B23/24

Foreign References:

JPH07111968A	1995-05-02
JPH06175771A	1994-06-24
JP2008119260A	2008-05-29
JPH08107875A	1996-04-30
JP2008119260A	2008-05-29
JP2003245243A	2003-09-02

Other References: