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:
Aug. 10, 2004
Filed:
Jul. 17, 2002
Akira Taniguchi, Hachioji, JP;
Chieko Aizawa, Hachioji, JP;
Yasuhiro Yoshizawa, Hachioji, JP;
Fumiyuki Onoda, Tama, JP;
Seiki Toriyama, Hino, JP;
Takeshi Kawabata, Sagamihara, JP;
Katsuyoshi Sasagawa, Hino, JP;
Sumihiro Uchimura, Sagamihara, JP;
Masanao Hara, Hino, JP;
Kazutaka Tsuji, Hachioji, JP;
Takayasu Miyagi, Hachioji, JP;
Hiroki Moriyama, Akishima, JP;
Hiroshi Ishii, Hino, JP;
Yoshinao Oaki, Hino, JP;
Tsugio Okazaki, Aizuwakamatsu, JP;
Jun Hasegawa, Hino, JP;
Yasuo Hirata, Hachioji, JP;
Tetsuo Nonami, Hino, JP;
Olympus Corporation, , JP;
Abstract
An endoscope shape detection system has a CPU included in a control unit. The CPU performs frequency sampling of digital data to calculate coordinates indicating the spatial positions of source coils incorporated in an insertion unit of an endoscope received in a patient and of marker coils placed on a patient. An inserted state of the insertion unit of the endoscope is estimated based on the calculated coordinate data indicating the positions of the source coils. Display data based on the shape of the endoscope is produced from the calculated coordinate data indicating the positions of the source coils, and output to a video RAM. Display data of the marker coils is produced from the calculated coordinate data indicating the positions of the marker coils, and output to the video RAM. Consequently, the positions of the markers are depicted together with the shape of the endoscope. The positional relationship between the insertion unit of the endoscope and a patient's body can therefore be ascertained.