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System and method for data slipring connection

A data acquisition system and data technology, applied in the direction of radiological diagnostic equipment, radiological diagnostic data transmission, application, etc., can solve the problems of increasing the complexity and cost of the system 100

Inactive Publication Date: 2005-07-13
GE MEDICAL SYST GLOBAL TECH CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, optical methods require complex electronics 102, 106 and a separate power source 112 for converting electrical signals to optical signals, thereby increasing the complexity and cost of the system 100

Method used

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  • System and method for data slipring connection
  • System and method for data slipring connection
  • System and method for data slipring connection

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Embodiment Construction

[0019] Referring to FIG. 2 , a computed tomography (CT) system 10 includes a generally annular rotating frame 12 or gantry and a stationary frame 13 supporting the rotating frame 12 . The rotating frame 12 includes an x-ray source 14 for emitting a highly collimated x-ray beam 16 towards a detector array 18 located on the opposite side of a cavity 19 . The cavity 19 allows an examination object 20 , such as a patient, to be placed on a table top 21 , which can be moved along the rotation axis 22 of the rotating frame 12 , for example by translation. The movement of the table top 21 enables different interesting cross-sectional regions of the examination object 20 to lie in the imaging plane of the rotating frame 12 .

[0020] Once the test object 20 has been positioned as desired in the cavity 19 by moving the test object 20 and / or the table top 21, the rotating frame 12 is rotated about the rotational axis 22 and at each of a plurality of angular positions along the rotationa...

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Abstract

A direct electrical connection between the transmission line portion of the data slip ring and the data acquisition system is provided. A transformer may be provided between the data acquisition system and the transmission line section to correct for impedance mismatches between the slip rings and the electrical connections. The method of connecting the data slip ring and the data acquisition system includes providing a controlled impedance cable between the transmission line portion and the data acquisition system.

Description

technical field [0001] The present invention relates generally to a data slipring for a computed tomography (CT) scanner, and more particularly to an improved connection between a data acquisition system (DAS) and a slipring . Background technique [0002] CT systems are used to obtain non-invasive cross-sectional images of examination objects, specifically, internal images of human tissue for medical analysis and diagnosis. Current CT systems place an object under examination, such as a patient, on a table within a central cavity of a rotating frame or gantry supported by a stationary frame. The gantry includes an x-ray source and detector array located on opposite sides of the cavity, in the x-y plane of the Cartesian coordinate system (also commonly referred to as the "imaging plane"), both being imaged as the gantry surrounds The check object rotation. At several angular positions (also called "projections") along the rotational path of the gantry, the x-ray source em...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/03A61B6/00
CPCA61B6/032A61B6/56A61B2562/222
Inventor J·S·卡特查N·D·赫夫曼J·K·奥米克P·E·小皮尔森
Owner GE MEDICAL SYST GLOBAL TECH CO LLC