Siemens Aktiengesellschaft

Udo Heinze

Franz Fadler

Martin Vierbücher

Peter Nögel

Rainer Graumann

Ralf Nanke

Horst Aichinger

Jens Fehre

Wendelin Feiten

Paul Marhoff

Jochen Bauer

An x-ray apparatus is configured with a C-arm frame. At one end of the C-arm frame an x-ray source is arranged and at the other end of which a detector for recording radiation emitted by the x-ray source is arranged. A voltage generator is provided for supplying a voltage to the x-ray source. At least one component of the voltage generator and the x-ray source are arranged separately from one another. The at least one component of the voltage generator is positioned at the same end of the C-arm frame at which the detector is arranged, as a result of which a weight equalization can be implemented in a simpler manner.

X-ray apparatus with voltage generator component disposed at the same end of a C-ARM as a detector

An X-ray system, having an adjustable C-arm configured with two degrees of freedom, comprises a memory configured to memorize a travel distance of the C-arm. Via the memory, an adjustability of the C-arm is determined by the memorized travel distance.

Adjustable X-ray system

A motorized adjustable x-ray apparatus has a transmitter operable by AN operator for adjustment of a C-arm and mechanically connected with the C-arm. The transmitter allows adjustment of both an angulation angle and an orbital angle of the C-arm. The speed of the adjustment movement of the C-arm can be selected by actuation of the transmitter.

Motorized adjustable x-ray apparatus

A motor-adjustable X-ray system comprises a C-arm, which has two degrees of freedom and is adjustable with a motor support. The motor support has a force pickup device which is provided to detect a force exerted by an operator when manipulating the C-arm. The force pickup device is configured to detect a plurality of directional components of the exerted force and to cooperate with an evaluation unit, by which as a function of the plurality of the directional components of the exerted force, different amounts of motor support of the C-arm in the two degrees of freedom are established via the evaluation unit.

Motor-adjustable x-ray system

An X-ray system, comprises a motor-adjustable C-arm, an input device which has a first actuating device and is mechanically connected to the C-arm, a dead man's switch, which is mechanically connected to the C-arm, and a pattern recognition module which cooperates with the input device and the dead man's switch, and is provided to determine a classification of actuating signal patterns generated via the first actuating device. A first signal group is activatable when the dead man's switch is actuated, and a second signal group is activatable when the dead man's switch is not actuated.

Motor-adjustable X-ray system

The invention concerns a C-arm x-ray device with a non-isocentric C-arm on which an x-ray source is positioned and that can be orbitally or angularly rotated, whereby the C-arm x-ray device comprises a device fashioned to horizontally adjust the C-arm (which enables an adjustment of the C-arm within the plane of the C-arm) and a device fashioned to vertically adjust the C-arm, where the horizontal adjustment device and the vertical adjustment device are fashioned such that they can automatically move the central x-ray beam of the x-ray source back into the isocenter, given an orbital or angulatory rotation of the C-arm via the horizontal and vertical adjustment device. An appertaining method is also provided.

C-arm x-ray device

In a stationary or mobile C-arm X-ray examination device with isocentric shifting of the C-arm, including rotation around a rotational axis, in order to enable an exact positioning of the patient, a light source is provided at the X-ray examination device which emits a light beam in the direction of the isocenter. For at least one position of the C-arm, the light beam and the rotational axis are assured to coincide, so that the projection of the light beam in a patient correctly identifies the isocenter.

X-ray examination device with a C-arm

A detector for the image brightness which is present at the output screen of an x-ray image intensifier is formed by a combination of individual detector elements, the detector elements having different shapes and/or sizes. The detector elements in combination form a matrix which enables an optimum selection of a desired measurement field by selecting defined combinations of individual detector elements.

Matrix of image brightness detector's elements formed by different

An x-ray diagnostic system has a control loop with a first regulating stage connected to a first radiation detector disposed after the x-ray image intensifier, the first regulating stage controlling at least one radiographic exposure value in dependence upon the output signal of the detector, and a second radiation detector which is disposed proximate the x-ray tube for supplying an output signal to a second regulating stage in the control loop, the second regulating stage having a memory for storing a signal which is dependent upon the dose rate for the last image. The memory signal is utilized as a reference signal for the second regulating stage. If the operator of the x-ray system determines that the contrast in the diagnostically relevant image region is becoming too great, the operator can switch from control of the system by the first regulating stage to control by the second regulating stage.

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Erlangen, Germany

Udo Heinze