Misunderstanding 5: Protective clothing does not require maintenance.
Any improper folding will cause the lead rubber material to gradually wear and fall off; improper cleaning will cause liquid to penetrate into the protective material in the surface of the clothing, which will accelerate the aging; improper use such as high temperature exposure will also reduce its protective performance.
Misunderstanding 6:The interventional operating room is an environment with a small amount of scattered rays, which has the characteristics of scattering, low dose, diffuseness and permeability.
The type of radiation damage that interventional doctors are most vulnerable to is cumulative chronic radiation damage. In the long run, the harm to health cannot be ignored, otherwise the radiation damage will form over time and cause serious damage to the body for life.
Misunderstanding 7: The protective materials must be Lead Equivalency, so they must contain lead.
The meaning of Lead Equivalency refers to how many millimeters of lead the attenuation ability of a piece of protective clothing is equivalent to the thickness of the radiation under the same irradiation conditions, and the unit is millimeter lead (mmPb). For example, if the lead equivalent of a certain protective material is 0.50mmPb, it means that its protective ability is equivalent to that of a 0.5mm thick pure lead sheet, but the material itself does not necessarily contain lead. Lead-free protective clothing also uses Lead Equivalency as a unit to measure the size of its protective function.
Misunderstanding 8: The Lead Equivalency value of the same protective material is unchanged
In fact, Lead Equivalency is a dynamic value. Under different ray intensities (Kv values) of the same protective material, its Lead Equivalency changes, and different metal composite materials react differently to different ray intensities, so different materials have different (Kv value) Lead Equivalency changes in a curvilinear shape, which is why international production and international manufacturers pursue different metal materials to meet the protection requirements under a specific ray environment (Kv value range). For example: the protective capacity of a protective suit at 120Kv is 0.5mmPb.
Misunderstanding 9: The higher the Lead Equivalency of protective clothing, the better
Generally speaking, the higher the Lead Equivalency, the better the protective effect, but the protective clothing must also be heavier, which makes the wearer bear more weight and affects the efficiency of the operation. Wearing heavy protective clothing for long periods of time can cause damage to human bones, such as cervical spine, shoulder, lumbar, hip, knee and ankle injuries. At the same time, Lead Equivalency is the easiest indicator to achieve. Lead equivalent cannot be used to determine the quality of protective clothing. The performance of a protective clothing should be comprehensively measured from the protection function, softness, and weight.
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