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:
Oct. 19, 1993
Filed:
Apr. 12, 1991
Yutaka Takahashi, Hachioji, JP;
Yoshikatsu Nagayama, Sagamihara, JP;
Hiroki Hibino, Hachioji, JP;
Katsunori Sakiyama, Akigawa, JP;
Yoshihito Shimizu, Hachioji, JP;
Sakae Takehana, Machida, JP;
Yoshinao Oaki, Hachioji, JP;
Koji Koda, Hachioji, JP;
Yoshinobu Soeda, Fukuoka, JP;
Masato Toda, Hachioji, JP;
Toshiaki Noguchi, Tachikawa, JP;
Yuichi Yamada, Tokyo, JP;
Akira Osawa, Yokohama, JP;
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A position and orientation state pickup is designed to detect the position and orientation state of an endoscope inserted into a living body without any adverse effect on the living body, which is often observed in X-ray analysis. The position and orientation state pickup, generating an electro-magnetic field with frequency at least lower than the visible ray range toward the body from outside; detects influence of the endoscope inserted into the body on two-dimensional energy distribution of the electro-magnetic field generated toward the body; and show the position and orientation state of the endoscope from the detection results.