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Imaging fault contrast device

A tomography, equipment technology, used in X-ray equipment, computed tomography scanners, diagnostics, etc.

Inactive Publication Date: 2005-08-03
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Implementation of methods known from the prior art usually requires professionally trained personnel
Furthermore, several known methods are not suitable for balancing the measuring device of the tomography system

Method used

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  • Imaging fault contrast device
  • Imaging fault contrast device
  • Imaging fault contrast device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] figure 1 A side view of a tomography system with a fastening unit 1 is schematically shown. An annular measuring device 3 and a support are arranged on the fixed unit 1 so as to be rotatable around a rotation axis 2 perpendicular to the paper surface. The direction of rotation of the measuring device 3 is marked with an arrow. An x-ray source 4 and an x-ray detector 5 with a downstream evaluation circuit 6 are mounted opposite to the measuring device 3 . The radiation fan 7 emitted by the x-ray source 4 during rotation of the measuring device 3 defines a circular measuring field 8 . The measuring field 8 is located in a patient tunnel 9 shown with dashed lines. In particular, the evaluation circuit 6 is connected via a contact ring connector 10 shown schematically here to a computer 11 which has a monitor 12 for displaying data. Two sensors for measuring vibrations transmitted to the fastening unit 1 are arranged on the fastening unit 1 , of which only one sensor 13...

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PUM

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Abstract

An imaging tomography apparatus, in particular an x-ray tomography apparatus or an ultrasound tomography apparatus, has a stationary unit (1) with a measurement unit (13) for measurement of an out-of-balance condition, on which stationary unit is mounted an annular measurement device (3) rotatable around a patient tunnel (9). Compensation weights (16a and 16b) for compensation of the out-of-balance condition are provided on the measurement device (3). To simplify the balancing procedure, the compensation weights (16a and 16b) are fashioned in the form of two compensation rings (15a and 15b) surrounding the patient tunnel (9) and with respectively defined out-of-balance conditions. The compensation rings (15a and 15b) are mounted on the measurement device such that they can be varied with regard to their relative positions in two parallel planes (E1 and E2) axially separated from one another.

Description

technical field [0001] The invention relates to an imaging tomography apparatus, in particular an X-ray computed tomography apparatus, which has a stationary unit with measuring means for measuring unbalances, on which is attached a rotatable device that can rotate around a patient tunnel. Ring-shaped measuring device, wherein a counterweight for compensating for unbalance is arranged on the measuring device and a further measuring part is arranged for determining the angle of rotation of said measuring device. Background technique [0002] Such an X-ray computed tomography system is known from DE-OS 10108065 A1. Wherein, in a fixed space, a measuring device and a bracket that can be rotatably arranged around a horizontal rotation axis are placed. A sensor for detecting the unbalance of the measuring device is arranged on the fixed space. The sensor is connected to a device for calculating the position of the rotatable measuring device at which the counterweight for balanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M1/16A61B6/03A61B8/00A61B8/06G01M1/32G01M1/36
CPCA61B8/13A61B6/032G01M1/32A61B8/06
Inventor 冈特·丹兹汉斯-于尔根·米勒
Owner SIEMENS AG
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