Shimadzu Corporation

Tatsuya Araki

Kimihiro Takahama

Toshiaki Nakamura

Hiroshi Miyata

Mitsuhiro Hashimoto

Takahiro Kamitake

Koji Akutsu

Hajime Takemoto

Shinya Hirasawa

Toshio Kadowaki

Akira Nakagawa

Katsuhiro Masuo

Mikihiko Katoh

Kouji Nakamura

An X-ray fluoroscopic device includes an X-ray imaging mechanism having an X-ray tubeand a flat panel detectorfiltersto form a correction region, in which the scattered radiation S caused by irradiating the therapeutic beam to the subjectcan be incident, but the X-ray that is irradiated from the X-ray tubeand transmits through the subjectcannot be incident; and a correction element that corrects the data of the region other than the correction region of the flat panel detectorby using the data of the correction region of the flat panel detector

Fluoroscopic device, moving body tracking device for radiation therapy, and X-ray detector

An X-ray equipment includes a movable carriage, an X-ray tube for irradiating an X-ray on a subject, and a cassette storage box for storing a cassette with a radiographic storage medium such as a film. In the X-ray equipment, when the cassette storage box is pulled and tilted, a gateway for the cassette is opened. When the cassette storage box is pushed back, the gateway is closed. The X-ray equipment further includes a storage box locking device for locking the cassette storage box in a state where the gateway is closed and for unlocking the cassette storage box when the locked state is released, and a locking release holding device for holding the storage box locking device in a released state.

X-ray equipment with cassette storage box locking means

An X-ray equipment includes a movable carriage, an X-ray tube, and a cassette storage box for storing a cassette with a radiographic storage medium. In the X-ray equipment, when the cassette storage box is pulled and tilted, a gateway for the cassette is opened. When the cassette storage box is pushed back, the gateway is closed. The X-ray equipment further includes a storage box locking device for locking the cassette storage box in a state where the gateway is closed and for unlocking the cassette storage box when the locked state is released, and a locking release holding device for holding the storage box locking device in a released state. An auto-lock switching device is also attached to the storage box locking device for switching the storage box locking device from the released state to the locked state when the cassette storage box is closed.

An X-ray device includes a cart, a pole vertically provided on the cart, and a telescopic-type extendable supporting arm. The extendable supporting arm is formed of a hollow first arm with one end attached to the pole, a hollow second arm inserted in the first arm to be horizontally movable therein, and a third arm inserted in the second arm to be horizontally movable therein. Also, an X-ray tube device is provided on one end of the third arm. The extendable supporting arm has a synchronous moving mechanism for horizontally moving the third arm according to a horizontal movement of the second arm, and an extension/contraction operating handle attached to the second arm.

X-ray device

During X-ray irradiation, a lever is operated to simultaneously move an imaging part and table in opposite directions from each other. A contrast medium's flow in an artery may be followed so that it is shown on a monitor. Relative speed of the table to X-ray imaging part can be adjusted by adjusting the amount of inclination of the lever.

X-ray apparatus and method

In a movable type X-ray photographing apparatus, when a lever handle is operated, a force F for pushing the lever handle is inputted into a CPU from right and left pressure sensors provided in the handle. The CPU receives signals of rotational numbers V of motors from right and left encoders, and calculates a pulse width W&equals;&agr;&times;f (V)&times;F. In accordance with the calculated pulse width W, a PWM control circuit carries out an ON-OFF duty control of a switching element in a bridge circuit of a motor driving circuit. An output torque T of the motor driving circuit is subjected to a PWM control so as to maintain a relationship (T&equals;&agr;&times;f). Accordingly, the torque T truly proportional to the pushing force F is outputted from the motor, and a natural operation can be achieved.

Movable type x-ray photographing apparatus

A mobile X-ray apparatus for a circuit examination, which includes an X-ray tube with a collimator, a mobile base having a pair of driven wheels, a holder attached and movable to the base, the holder holds the X-ray tube. A motor driver is disposed in the base which drives the wheels. An operation handle bar is disposed in the base providing a signal for driving the motor driver. An input means, separated from the handle bar, provides a signal for driving the motor driver slightly. A controller controls the motor driver according to the signal from the handle bar or the input means.

Growing community of inventors

Omihachiman, Japan

Tatsuya Araki