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Anti-scattering grate

An anti-scatter grid and anti-scatter technology, which is applied in the fields of radiological diagnosis instruments, medical science, computer tomography scanners, etc., can solve the problems of high cost and high precision requirements for the processing of anti-scatter grid supports. Achieve the effect of low processing requirements, enhance competitiveness, and meet scattering requirements

Pending Publication Date: 2017-10-13
上海六晶科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As stated in 201420273605.3 "Anti-scattering Device for CT Radiation Detectors", the anti-scatter grid support processed by this

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 5 and Figure 6 As shown, in this embodiment, the positioning pin 4 is used to position the end block 1 and the positioning insert 2. During manufacture, when the positioning pin 4 is used to position the end block 1 and the positioning insert 2, not only on the positioning insert 2 The design of two circular through holes 8 can be adopted, and the design of one circular through hole 8 plus a waist-shaped through hole 8 can also be adopted. The specific design of the two circular through holes 8 is as follows: the end block 1. Two positioning pin holes 5 arranged front and back are opened toward the bottom of the inner side. The bottom of the positioning insert 2 is provided with two circular through holes 8 placed side by side. The two circular through holes 8 are connected with the The positioning pin holes 5 correspond one to one, and a positioning pin 4 is embedded in the circular through hole 8 , and the tail of the positioning pin 4 passes through...

Embodiment 2

[0034] Such as Figure 7 and Figure 8 As shown, in this embodiment, the positioning insert 2 and the end block 1 are positioned using the method of reference positioning. The reference positioning tooling used surrounds the end block 1 on three sides, and then the bonding side of the positioning insert 2 and the end block 1 is coated with Cover with glue and glue to end piece 1 with the help of a datum positioning tool. The reference positioning used in this embodiment can not only use the tooling that surrounds the end block 1 on three sides, but also use the reference positioning tooling that surrounds the end block 1 on four or even five sides, where the four sides are surrounded by the four sides of the bottom, left, right and rear. , surrounded by five sides are respectively upper, lower, left, right and rear five sides.

Embodiment 3

[0036] Such as Figure 9 and Figure 10 As shown, this embodiment is a one-dimensional anti-scattering grid device, and its positioning method uses positioning pins 4 to position the end block 1 and positioning insert 2, wherein the anti-scattering sheet group 7 is only composed of several horizontal anti-scattering sheets 3, And the extended parts at the bottom of several transverse anti-scattering sheets 3 meet on the same straight line. The horizontal anti-scattering sheet 3 is in the shape of a wide top and a narrow bottom. The left and right ends of the horizontal anti-scattering sheet 3 are respectively provided with a stepped groove 9, and the left and right ends of the horizontal anti-scattering sheet 3 are respectively embedded in the grooves 9. In the first slot 6 corresponding to the two positioning inserts 2 .

[0037] The width range of the first slot 6 is 0.05-0.4mm, and the interval between two adjacent first slots 6 is 0.3-3mm. Preferably, the width of the f...

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PUM

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Abstract

The invention relates to the field of medical collimators and specifically relates to an anti-scattering grate. The grate comprises end blocks, positioning insertion sheets and an anti-scattering sheet set and is characterized in that one end block is disposed on the left side and the right side of the anti-scattering grate; the two end blocks are disposed in a face-to-face manner; the positioning insertion sheets are adhered on inward lateral faces of the end blocks; multiple vertical first insertion grooves are formed in top parts of the positioning insertion sheets; the anti-scattering sheet set is disposed between the positioning insertion sheets; and the positioning insertion sheets are connected to the anti-scattering sheet set by the first insertion grooves. In comparison with the prior art, the anti-scattering grate provided by the invention has the advantages that the structure is simple and installation is convenient; processing requirements are low, the production cost of the product is greatly reduced, and competitiveness of the product is enhanced; and according to different demands for the anti-scattering grate, the distance between the horizontal anti-scattering grates and the distance between the vertical anti-scattering grates can be adjusted, so that different scattering demands of the anti-scattering grates can be satisfied.

Description

technical field [0001] The invention relates to the field of medical collimators, in particular to an anti-scattering grid. Background technique [0002] The anti-scatter grid is the detector component of medical CT. The function of the anti-scatter grid is to absorb and filter scattered and refracted X-rays. [0003] During the assembly process of the current anti-scattering grid, the usual fixing method between the support and the anti-scattering sheet is: to open a strip of slots on the supports on the left and right sides, and insert the anti-scattering sheet by embedding It is fixed on the slot to achieve the purpose of fixing the anti-scattering sheet. As stated in 201420273605.3 "Anti-scattering Device for CT Radiation Detectors", the anti-scatter grid support processed by this method not only requires high precision in the processing of the anti-scatter grid support, but also costs Also very expensive. Contents of the invention [0004] In order to overcome the ...

Claims

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Application Information

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IPC IPC(8): A61B6/00A61B6/03
CPCA61B6/00A61B6/03
Inventor 朱玉斌苏峰张丽娟李邦怿
Owner 上海六晶科技股份有限公司