Kabushiki Kaisha Morita Seisakusho

Akio Yada

Naonobu Tsukada

Keizo Inoue

Sadayasu Ohta

This invention relates to a headrest for a medical treatment table wherein the headrest comprises a rigid headrest base and a main headrest body of a cushionlike mass of soft material and replacement or washing of the headrest when stained or damaged is facilitated by at least an exterior portion of the main headrest body of a cushionlike mass of soft material being made detachable with respect to the headrest base and wherein the head of a patient is more comfortably rested on the headrest by the center recess being formed in the main headrest body and gently raised portions being formed on the left and right of the recess and the circumferential edge of the headrest is made thin and flat to increase a range of operation within which an operator handles materials such as instruments, drugs, etc.

Headrest of treatment table

Method and apparatus for making a tomogram according to this invention include one elongated support member supporting an X-ray tube and a film device in an opposed relation with each other at both ends thereof and one vertical shaft supporting the elongated support member thereon. Movement of the axis of the shaft along a desired curve results in the movement of an X-ray beam in the state of the X-ray beam intersecting the curve. In the meantime, an angle of rotation around the axis of the shaft is adjusted so as to maintain an angle of intersection of the X-ray beam with the curve at a predetermined angle. A film surface is moved relatively with respect to the X-ray beam so as to allow the beam to scan the film surface. The velocity of movement of the film surface is synchronized with the movement of the shaft. In the invention, the aforementioned movement of the shaft along the curve, the aforementioned angle of rotation of the shaft and the aforementioned movement of the film surface are respectively controlled or adjusted by digital signals.

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Uji, Japan

Akio Yada