Hitachi, Ltd.

Hitachi Medical Corporation

Kenya Sakanaka

Yuta Inoue

Mikio Mochitate

Iwao Miyano

A medical image scanning system includes a top plate on which an object is placed, a drive screw shaft, and a fall prevention unit. The fall prevention unit includes a load support nut that is threadedly engaged with the drive screw shaft and to which the load of the top plate is applied; a fall prevention nut that is arranged below the load support nut and is threadedly engaged with the drive screw shaft; a rotation prevention mechanism that prevents the rotation of the load support nut; and a detent mechanism that performs the turning stop of the fall prevention nut and releases the turning stop of the fall prevention nut when the threaded engagement between the drive screw shaft and the load support nut is disconnected.

Medical image scanning system provided with bed and abnormality diagnosis method thereof

An object of the present invention is to provide a bed for a medical image scanning apparatus including a lateral movement device which is light and has less deformation while suppressing a bed height in the lowest position of a top board. A bed for a medical image scanning apparatus includes a base, an upper portion framethat supports a top board, and a lifting and lowering devicethat is positioned between the baseand the upper portion frameand lifts and lowers the upper portion frame, and the lifting and lowering deviceincludes a lateral movement device (a motor, a pinion gear, and rack) which relatively moves at least two members (a rail receiving blockand a rotation axis, and a rail receiving blockand a rotation axis) constituting the lifting and lowering devicealong a direction perpendicular to a longitudinal direction of the upper portion framein the top board surface of the top board.

Growing community of inventors

Tokyo, Japan

Kenya Sakanaka