Shimadzu Corporation

Ken Shirota

Hiroshi Okumura

Junpei Sakaguchi

Tomoharu Okuno

Haruo Uno

Toshiaki Nakamura

Toshiya Kawabata

Takayuki Mitsuhashi

The X-ray imaging apparatus includes: a main power supply operation unit for switching ON/OFF of power supply to the X-ray imaging apparatus; a braking unit for decelerating a rotation speed of the anode to a predetermined braking speed lower than a resonance range which is a rotation speed of the anode at which resonance occurs in the X-ray tube; and a non-braking stop prediction unit configured to detect a predetermined situation in which a non-braking stop state is predicted, the non-braking stop state being a state in which the main power supply operation unit is operated to be turned to an OFF state without decelerating the rotating anode by the braking unit. The non-braking stop prediction unit activates the braking unit by detecting the predetermined situation to decrease the rotation speed of the anode to the braking speed.

X-ray imaging apparatus

Provided is an X-ray imaging system capable of performing X-ray imaging quickly. The X-ray imaging system is provided with: an X-ray tube device including a cathode and an anode, the X-ray tube device being capable of performing X-ray imaging by irradiating an imaging target with X-rays in a state of rotating the anode; a light irradiation device including a collimator defining an X-ray irradiation range of the X-rays with respect to the imaging target, a visible light irradiation unit for emitting visible light to the imaging target and a light irradiation operation unit for performing an operation for making the visible light irradiation unit in the light irradiation state; and a controller for controlling operations of the X-ray tube device and the light irradiation device. The controller rotates the anode at an imaging possible rotation speed capable of performing X-ray imaging when the light irradiation operation unit is operated.

X-ray imaging system

An X-ray imaging apparatus includes an X-ray source, a detector for detecting X-rays, an imaging unit, an operation unit, a notification unit, and a control unit. The control unit generates an image of an inside of an examination room. Further, when detecting that a person other than a subject is present in the examination room based on the image of the inside of the examination room, the control unit performs control to issue caution information indicating that a person other than a subject is present in the examination room.

An X-ray image capturing apparatus includes a target determiner that determines a target position of an imager and a target angle of the imager based on imaging content information for generating a tomographic image, and a drive controller that controls a drive to be driven such that a relative position of the imager corresponds to the target position and a relative angle of the imager corresponds to the target angle.

X-ray image capturing apparatus and x-ray image capturing method

An X-ray imaging apparatus includes a controller configured or programmed to perform control to change an amount of assist from a drive in manually moving a moving body based on at least one of operation of an operation button configured to receive an operation for moving the moving body or an operation for aligning the moving body and a current position and target position of the moving body.

An X-ray imaging apparatus includes an X-ray tube, an X-ray detector, a moving body movable in a predetermined direction, a moving mechanism, a motor, an operating force detector configured to detect an operating force, and a controller configured or programmed to perform mode switching control to switch, based on whether or not an operation to enable manual movement of the moving body has been detected, a control mode to a torque control mode or a position control mode.

An X-ray imaging apparatus includes an X-ray tube, an X-ray detector, a moving body configured to support at least one of the X-ray tube and the X-ray detector in such a manner that at least the one of the X-ray tube and the X-ray detector is movable in a predetermined direction, a drive configured to provide an amount of assist for moving the moving body in the predetermined direction, and a controller configured or programmed to perform control to change the amount of assist to be provided to the moving body by the drive according to a height position of the moving body when the moving body is manually moved.

A radiation image capturing apparatus maintains previous image capturing position data stored in an image capturing position data storage unitof a control unitwhen a setting of a reference position of a long-length imaging region and the number of images to be captured are not changed. On the other hand, the radiation image capturing apparatus clears the previous image capturing position data stored in the image capturing position data storage unitof the control unitwhen either a setting of a reference position of a long-length imaging region or the number of images to be captured is changed. Then, the control unittemporarily prohibits X-ray image capturing, and a warning display unitcauses a display unitto display a display prompting input of image capturing position data for subsequent long-length image capturing. This display is kept displayed until an operator inputs image capturing position data for subsequent long-length image capturing. When an operator inputs image capturing position data for the subsequent long-length image capturing and the data is stored in the image capturing position data storage unitof the control unit, the control unitreleases the prohibition of image capturing.

Radiation image capturing apparatus

An X-ray imaging apparatus is configured so that an height-position composition elementsends a directive to an angle driving elementin an imaging element, and the height-position compensation elementcorrects the height-position of the X-ray tubeby driving of the up-and-down driving elementin conjunction with the imaging region that the imaging region data recognition elementof the console element, the angle of the X-ray tubeis corrected so that the X-ray irradiation angle of the X-ray from the X-ray tubefaces downward; and when the height-position compensation elementcorrects the height-position of the X-ray tubedownward, the angle of the X-ray tubeis corrected so that the X-ray irradiation angle of the X-ray from the X-ray tubefaces upward.

In a radiation tomography imaging device, the imaging range calculation elementcalculates a possible imaging range of the FPDbased on the imaging distance G, the irradiation swing angle &#x3b8; and the movable range SP of the X-ray tube. The operator can preliminarily calculate the possible imaging range of the radiation detection means prior to the X-ray tomography imaging because the imaging distance, the irradiation swing angle, and the movable range SP are all predetermined parameters. The possible imaging range FP of the FPDis the positional range of the FPDin which the X-ray tubecan acquire the X-ray tomography image without moving the X-ray tubeto the outside of movable range. Therefore, the radiation tomography imaging can start the X-ray tomography by assuredly moving the FPDwithin the possible imaging range by referring to the preliminarily calculated possible imaging range of the FPD. As results, an incident in which the X-ray tubemoves out of the movable range SP and interferes the floor surface W and so forth can be avoided, so that the X-ray tomography imaging can be performed adequately.

Radiation tomography device

A mobile X-ray imaging apparatus has an angle sensor and a movement calculation circuit that controls the driving of drive wheels based on the turning angle of auxiliary wheels relative to a straight moving direction of the base unit when a fine movement switch instructs movement of the base unit in the fine movement mode. The turning angle of auxiliary wheels is detected by a turning angle sensor and the rotation of the pair of drive wheels is controlled by the movement calculation circuit as the auxiliary wheels turns to the straight moving direction.

Mobile X-ray imaging apparatus

A mobile X-ray radiographic device has an extended operable time by employing a regenerative energy system and assembly. A regenerative brake circuit acts to provide a braking force for a rear wheel set during a circumstance and an adaptive use wherein a driving force is cut off to the rear wheels, and a second battery system charges with the generated electric power for adaptive use. The regenerative brake circuit further acts to provide the braking force for a rotary anode under the circumstance in which the driving force is cut off to the rotary anode and also the second battery charges with the generated electric power.

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Kyoto, Japan

Ken Shirota