What is the quality evaluation standard of carbon fiber CT medical bed board?

At present, in medical X-ray inspection equipment, the appearance rate of carbon fiber composite materials is still quite high. Choosing carbon fiber, a material with light weight, high strength, good biocompatibility, and very good radiopaque performance as the raw material of CT medical panels, seems to have been unanimously recognized by the enterprise. There are many businesses in the market that can process carbon fiber medical bed boards, but there is a certain gap in the quality of the products produced. For this situation, 3G Carbon suggests that you can start from several aspects and can quickly judge the carbon fiber CT medical bed boards.

1-Development clarity

Whether it is a two-dimensional fluoroscopy image or a scan (CT) imaging, the system resolution determines the clarity of the image. The higher the resolution, the clearer the image. System resolution is a comprehensive reflection of the functions of the entire imaging system (including computer software and bed panels) and is the key to imaging technology. At present, foreign countries have set the resolution of advanced X-ray medical equipment systems to be no less than 4.01LP/mm.

The carbon fiber bedboard with excellent workmanship has a uniform internal structure and low material impurity content, which can reduce the divergence of X-rays during use and make the development of the equipment more clear. The image resolution of the carbon fiber medical CT bed board equipment is very high, which fully meets the relevant indicators. According to special conditions, the resolution of the X-ray machine system equipped with the developed bed panel was tested, and the test result was 4. 01LP/mm, which meets the imaging resolution index and meets the requirements for imaging resolution.

2-Mechanical properties

The sandwich structure of the carbon fiber medical CT bed board is composed of a thinner panel and a thicker core material. The panel is made of carbon fiber composite material with high strength and rigidity, which is thick enough to withstand the in-plane tensile stress, compressive stress and shear stress caused by the design load; the polyoxymethylene acrylimide (PMI) foam core material is selected, which has sufficient strength To withstand the bending stress and transverse shear stress caused by the design load; the compressive strength of the panel and the elastic modulus of the core material are sufficient to prevent the panel from wrinkling under the design load; the sandwich structure has sufficient bending stiffness to prevent it from being generated under the design load Excessive flexural deformation.

3-X-ray penetrability determination

X-ray penetration is the main reason for the choice of carbon fiber for the medical bed board. The better the X-ray transmittance of the made bed board is, it means that the materials are real and exquisite workmanship, which can effectively improve the image recognition and reduce the power. The carbon fiber CT medical bed board is composed of carbon fiber board and PMI sandwich material. The aluminum equivalent is 0.52mmAL. It has good X-ray permeability and clear imaging. The film was inspected under a special fluorescent lamp, and no visible shadow was found (diameter greater than 0.3 mm impurities).

Compared with traditional bed boards such as wood, polycarbonate, and phenolic resin boards, carbon fiber medical bed boards have advantages in X-ray transmittance, imaging clarity, strength, rigidity, etc., and carbon fiber composite materials can also improve the overall performance of medical devices. Played a better role. It is believed that in the future, with the development of carbon fiber technology and the stability of the overall price, the application of carbon fiber composite materials in the field of medical equipment will become more and more extensive.