Thk Co., Ltd.

Other

Mamoru Mitsuishi

The University of Tokyo

The University of Electro-communications

Public University Corporation Yokohama City University

Nakashima Propeller Co., Ltd.

Mitsuishi, Mamoru

Shinichi Warisawa

Toji Nakazawa

Takashi Azuma

Hiroyuki Fukuda

Naohiko Sugita

Kyohei Tomita

Nobuhiko Sugano

Hiroyuki Tsukihara

Yoichiro Matsumoto

Takayuki Inoue

Kazuo Yonenobu

Kouichi Kuramoto

Kazushi Numata

Yu Nishiyama

Norihiro Koizumi

Yukio Homma

Kiyoshi Yoshinaka

Hideyo Miyazaki

Izumu Hosoi

Atsushi Kayasuga

Tatsuya Ishizuka

Jumpei Arata

Toji c/o Thk Co Ltd Nakazawa

Provided is an in vivo movement tracking apparatus configured to track a portion of interest that moves in vivo, in which accuracy and robustness of tracking are improved. The apparatus is configured to determine an estimated position of ah organ in a biological image based on the past movement of the organ and search for contour points corresponding to a plurality of control points, respectively, representing a contour shape of the organ in a region corresponding to the estimated position, to thereby determine an estimated contour of the organ based on the contour points. The in vivo movement tracking apparatus is configured to determine a position of a portion of interest, which moves in association with the organ, based on the estimated contour with reference to previously acquired sample data regarding a positional relationship between a contour of the organ and the portion of interest.

In vivo movement tracking apparatus

Tow forces can be measured only by providing one force sensor in a device structure, and a drive system is driven so as to assist an external force by detecting it. A value at a force sensor () at the moment when a foot switch () is set as the original point (detection reference) of a force to be assisted. Variations of the force after the original point setting is measured by the force sensor () the difference between the measured value and the assist original point is obtained, and a force to be assisted is detected. Depending on the magnitude of the force to be assisted, assist operation is performed by causing a drive force to act on a foot such that the force to be assisted is reduced. When the force is assisted reaches zero, the assist operation is completed. Then, two forces, or 'a force acting on a patient's foot' and 'a force applied to the foot' from the outside, are detected by the one force sensor ().

Power assistance controlling apparatus, power assistance controlling method, and physiotherapy apparatus

A bending forcepshas at least three degrees of freedom including relative opening/closing of a pair of gripping members, rotation of both the gripping members around a first axisand rotation of both the gripping members around a second axisexisting on an imaginary plane substantially perpendicular to the first axis. A drive power from an actuator is converted to each motion of the opening/closing of the gripping members, rotation thereof around the first axis and rotation thereof around the second axis by first to third link mechanismsand. The present invention enables the durability and control accuracy to be raised by employing a link mechanism as a drive power transmitting means. Further, the present invention facilitates sterilization, cleaning and attachment/detachment to/from a driving means.

Manipulator with multiple degrees of freedom

The repositioning apparatus of the invention includes a supporting bed for supporting at least a lower body of a patient, who needs repositioning therapy on his/her leg, a lower leg supporting bed for supporting a lower leg of the patient, a first movable table for allowing the lower leg supporting bed to move about a substantially horizontal axis, a first drive unit for driving the first movable table, a second movable table for moving the lower leg supporting bed in the substantially horizontal direction, and a second drive unit for driving the second movable table. Accordingly, the repositioning apparatus can make the lower leg of the patient perform a twisting action and a bending and stretching action, which are inevitable action for repositioning the patient's lower leg.

Repositioning apparatus

A curved surface machining method that performs finishing of the surface of a workpiece into a curved surface. The method includes the steps of: setting a workpiece in a rotating or stationary state in a water tank filled with an abrasive-containing solution into which an abrasive with a grain size of less than 1 &#x3bc;m has been admixed; and spraying a high-speed fluid in the abrasive-containing solution while a position, direction, and angle thereof is controlled relative to the workpiece, thus grinding and finishing the surface of the workpiece to an intended surface roughness and profile accuracy.

Curved surface machining method and an apparatus thereof

Growing community of inventors

Tokyo, Japan

Mamoru Mitsuishi