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Instruction to X ray intercepting mechanism

An X-ray and blocking technology, applied in the field of slit mechanism devices, can solve problems such as increased structure, high cost, and complex structure

Inactive Publication Date: 2012-11-07
TOSHIBA MEDICAL SYST CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In the past, the blocking mechanism was integrated with the wedge mechanism, and the blocking plate was driven by the driving mechanism so that it moved along the linear track into the X-ray path, and its structure was relatively complicated.
In particular, if image 3 As shown, in the case where the wedge has only one piece and does not need to control its movement, in order to realize the switch between X-ray interception and normal radiation, it is still necessary to drive the drive system like the wedge mechanism to make it move, which increases unnecessary structure, higher cost

Method used

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  • Instruction to X ray intercepting mechanism
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  • Instruction to X ray intercepting mechanism

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Embodiment Construction

[0026] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0027] Figure 4 It is an external view of the slit mechanism of the CT apparatus according to this embodiment. In this embodiment, the slit mechanism and the blocking mechanism share the opening and closing mechanism and the drive mechanism.

[0028] Figure 5 is a perspective view of the slit mechanism according to the present embodiment, Figure 6 It is a front view of the slit mechanism concerning this embodiment. The slit mechanism according to this embodiment has a slit function for adjusting the width of X-rays, and also has a blocking function for blocking X-rays. The slit mechanism of the present embodiment includes a blocking mechanism. The slit mechanism includes two slit plates (X-ray width adjustment plates) L3 and L4 having the same length and the same width. The slit plates L3, L4 are connected at their ends by two links S2, S4 of the same length. ...

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Abstract

The invention relates to instruction to an X ray intercepting mechanism. A slit mechanism device is provided with two slit plates (L3, L4) for adjusting the width of the X ray, two slit connecting rods (S2, S4) axially installed at the two ends of the two slit plates to link the two slit plates, two axes (R1, R2) respectively provided with the two slit connecting rods to ensure the two slit connecting rods to rotate, two intercepting plates (L1, L2) intercepting the X ray or allowing the X ray to pass and two intercepting levers (S1, S3) supported at the two ends of the two intercepting plates with the axes to link the two intercepting plates and installed on the two axes with the two slit connecting rods.

Description

[0001] This application is based on the Chinese patent application No. 200910165898.7 filed on August 12, 2009 and claims its priority, the entire content of which is quoted here. technical field [0002] The invention relates to a medical image device, in particular to a slit mechanism device of an X-ray computed tomography device (CT device). Background technique [0003] A CT device is a medical diagnostic device that uses X-rays to diagnose patients. Such as figure 1 As shown, the CT apparatus has an X-ray tube 10 that emits X-rays, a slit mechanism (optical adjustment mechanism) 11a that adjusts the width of X-rays, a bed 12 on which a patient is placed, and a detection unit 13 that detects X-rays and performs signal processing. . [0004] Generally, it is necessary to preheat the X-ray tube 10 that emits X-rays before performing a diagnosis with a CT apparatus. During the warm-up period, in order to avoid irradiation of unnecessary X-rays, it is necessary to block X...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/06A61B6/03
Inventor 孙俊杰张晶晶韦鹤
Owner TOSHIBA MEDICAL SYST CORP