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Preparation method of flat plate hole pattern image quality indicator

A hole type image quality meter and flat plate technology, applied in the field of medical devices, can solve problems such as non-compliance, complicated manufacturing process, long cycle, etc., achieve the effect of solving curling and eccentricity problems, simple and easy to implement method, and simplified preparation process

Pending Publication Date: 2020-06-19
广东省医疗器械质量监督检验所
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the design of this image quality meter for dental metal restoration evaluation does not meet the requirements of GB / T 23901.2 stepped hole type image quality meter. There are no standards and requirements for the evaluation of photographic sensitivity
This makes it difficult to explore the radiographic conditions and evaluate the defects
Therefore, in terms of the definition and use of the image quality meter, there is still no applicable dental image quality meter.
At the same time, this kind of image quality meter is manufactured by casting method, the manufacturing process is complex, the cycle is long, and the cost is high. Currently, there is no such type of image quality meter on the market.

Method used

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  • Preparation method of flat plate hole pattern image quality indicator
  • Preparation method of flat plate hole pattern image quality indicator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 Shown, a kind of preparation method of plate hole type image quality meter, described preparation method comprises the following steps:

[0044] S1. Mosaic treatment: perform mosaic treatment on the metal body;

[0045] Specifically, the material of the metal body in the embodiment of the present invention is the same as that of the material to be detected, which can ensure the consistency of material absorption of the image quality meter in radiography. The source of the metal body material selected can be dental metal raw materials, The casting process is the same as the casting process in the production of the detected material in the prior art, and the sprue waste produced in the process of casting dentures.

[0046] Preferably, the step S1 in the embodiment of the present invention specifically includes: performing hot embedding treatment on the metal body according to the selected inlay body.

[0047] Preferably, the thermal embedding treatment ...

Embodiment 2

[0061] A preparation method of a flat hole type image quality meter, said preparation method comprising the following steps:

[0062] S1. Mosaic treatment: perform mosaic treatment on the metal body;

[0063] S2. Cutting treatment: cutting the metal body after the mosaic treatment to obtain a metal thickness sheet with a thickness value of 125 μm, and the tolerance range of the thickness value is 0-15 μm;

[0064] S3, punching treatment: use a punching tool to drill two holes of the same size on the thickness sheet, the hole size is 125 μm, to obtain a flat hole type image quality meter, and the hole diameter tolerance range is 0 to 15 μm;

[0065] S4. Encapsulation treatment: Encapsulate and fix the flat hole type image quality meter in a material that has weak absorption of X-rays.

[0066] Preferably, the step S1 in the embodiment of the present invention specifically includes: performing cold mounting treatment on the metal body according to the selected mosaic body.

[...

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Abstract

The invention relates to the field of medical instruments, in particular to a preparation method of a flat plate hole pattern image quality indicator, which comprises the following steps: S1, inlayingtreatment: inlaying a metal body; S2, conducting cutting treatment, specifically, acquiring the metal body obtained after inlaying treatment is cut, a metal thickness piece with the thickness value being 125 micrometers, wherein the tolerance range of the thickness value is 0-15 micrometers; S3, punching treatment: drilling two holes with the same size in the thickness sheet by adopting a punching tool to obtain a flat plate hole pattern image quality indicator with the hole diameter of 125 microns and the hole diameter tolerance range of 0-15 microns; and S4, packaging treatment: packaging and fixing the flat plate hole pattern image quality indicator in a material weakly absorbing X-rays. The preparation method of the flat plate hole pattern image quality indicator provided by the invention meets the requirements on the image quality indicator in radiographic detection, and is simple in process, easy to realize, efficient in production and low in cost.

Description

technical field [0001] The invention relates to the field of medical equipment, and more specifically, to a method for preparing a flat hole image quality meter. Background technique [0002] Image quality meters are used to evaluate radiographic quality levels. The image quality meter commonly used today is a linear image quality meter or a hole-type image quality meter. Different radiographic standards will select appropriate image quality meters to formulate the radiographic sensitivity (film quality level) that should be achieved to evaluate radiographic techniques. Ability to detect defects. [0003] At present, the image quality meter that evaluates the defect detection ability by evaluating the radiographic quality level mainly includes the image quality meter for dental metal restoration evaluation. The image quality meter is composed of an upper part and a lower part. The upper part is a metal thickness block with a through hole. , the lower part is composed of st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/04G01N1/28
CPCG01N23/04G01N1/286G01N2001/2873G01N2001/2886Y02P70/10
Inventor 陈小君陈能王文荣肖燕萍谢胜芬刘珍珍吴紫君蔡金兰
Owner 广东省医疗器械质量监督检验所
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