A mobile radiographic imaging system includes a mobile radiographic imaging apparatus and a radiographic imaging cassette. The radiographic imaging apparatus includes a displacement mechanism that electrically displaces a radiation emission unit and a displacement mechanism controller that controls the operation of the displacement mechanism. The radiographic imaging cassette includes a remote operation unit that is provided in a housing to remotely operate the displacement mechanism and an operation instruction transmission unit that transmits an operation instruction for operating the displacement mechanism to the displacement mechanism controller in a case where the remote operation unit is operated.

The present invention provides a scan gantry for a medical imaging system. The scan gantry comprises a bottom supporting frame and a tilt supporting frame that are connected to each other, wherein the tilt supporting frame is tiltable relative to the bottom supporting frame. The scan gantry further comprises a locking mechanism connected between the bottom supporting frame and the tilt supporting frame. In the process that the tilt supporting frame is being tilted relative to the bottom supporting frame, the locking mechanism is in an unlocked state; and when the tilt supporting frame is stationary relative to the bottom supporting frame, the locking mechanism is in a locked state to prevent the tilt supporting frame from moving relative to the bottom supporting frame.

A mobile radiography system includes sensors to detect a tilt angle and or pitch angle of the system to prevent deployment of the extendable boom and/or column and/or prevent activation of a motor drive if the tilt angle or pitch angle exceeds a pre-set boundary.

An improved configuration of a mobile-type radiographic image pickup device reliably stops on a flat path without play. More specifically, the prevent invention stops reliably on an inclined path. Where a carriage accelerates regardless of that fact that a deceleration control unit has begun to restrict the movement of the carriage, a brake control unit causes a brake device to operate. According to the present invention, if the carriage accelerates regardless of the fact that a deceleration control unit has begun to restrict the movement of the carriage, the brake device is promptly operated, and prevents concern regardless of the application of an instruction to stop the carriage which is travelling on an incline, and prevents the carriage from running for a long period to time.

Provided is a mammography apparatus that prevents a main body from falling due to damage to a coupling connecting a ball screw, to which the main body is connected, and a motor. The mammography apparatus includes: a main body having an X-ray generator and an X-ray detector; a ball screw to which the main body is connected so as to be movable up and down; a motor rotating the ball screw so as to allow the main body to move up and down; a coupling connecting a drive shaft of the motor and the ball screw; and a brake provided at one side of the coupling. When the coupling is ruptured, the brake prevents ruptured coupling portions from being separately rotated in order to prevent a fall of the main body.

An X-ray apparatus capable of releasing a locked rotation of a wheel using a power supplied from an auxiliary battery of an X-ray detector when a body is discharged, and a control method thereof. The X-ray apparatus includes an X-ray detector provided with a detector battery mounted thereto and configured to detect X-rays using power supplied from the detector battery. A body includes a body battery and a detector accommodation unit, in which the X-ray detector is accommodated on the outside. A wheel in the body is rotatable by a power supplied from the body battery and a brake is configured to lock a rotation of the wheel when the body battery is incapable of supplying the power. A controller controls the brake so that a locked rotation of the wheel is released by the power supplied from the detector battery when a rotation of the wheel is locked.

A mobile radiography system includes a moveable arm having an x-ray source attached thereto which can be manually positioned by an operator. A sensor detects a location of a bed or other object relative to the radiography system and generates location information so that a programmable system can restrict lateral movement of the system or arm within a zone proximate the bed or other object.

A radiography apparatus includes: an irradiator that emits radiation; a carriage portion on which the irradiator is mounted and which is capable of traveling; steering casters which are provided in the carriage portion and are connected to a steering and whose steering angle is given by an operation of the steering; free casters which are provided in the carriage portion and are not connected to the steering and whose steering angle is changed subordinately according to a direction of force applied to the carriage portion; and a switching mechanism that selectively switches between a first grounded state in which the free casters are separated from a floor and the steering casters are grounded to the floor and a second grounded state in which the free casters are grounded to the floor and the steering casters are separated from the floor.

A handbrake of a medical imaging apparatus that has a movable patient table with a top face on which a patient lies, fastens and releases the patient table when actuated. The handbrake with a mounting face and a first face has a main body and has a brake actuation button, operable in an actuation direction. The mounting face is attachable to the patient table. The front face is directly opposite to at least some parts of the mounting face in the actuation direction. The brake actuation button is disposed on the front face of the main body, and is actuated by pushing the brake actuation button in the actuation direction, in order to fasten or to release the brake of the patient table. The actuation direction is essentially perpendicular to the top face of the patient table.

A travel handle (20) is provided with a pair of support plates (22) and a gripping bar (21) extended between the support plates (22). The pair of support plates (22) has a groove-like shape and is engaged with a slider (25) provided to a main body so that the support plates are reciprocally guided in a longitudinal direction inclined relative to the horizontal direction, and the reciprocal motion ends of the support plate in the reciprocating direction are regulated. The slider (25) is provided with a braking roller in contact with a groove portion side surface of the support plate (22) of the travel handle (20) and a braking control mechanism (26) for performing control such that the braking force by the travel handle (20) against the upward/downward movement of the travel handle (20) in the inclined direction is increased when the travel handle (20) is moved downward and decreased when the travel handle (20) is moved upward.