Medical single reflection film and preparation method thereof

Abstract

The invention discloses a medical single reflection film and preparation method thereof. The film contains a film base, the front of which is equipped with a blotting coating and the back of which is provided with a single reflection layer, on the external surface of which an antistatic coating is installed. The film of the invention has the advantages that: it can enhance the print sharpness and grey scale, with long storage time and convenient preservation; the single reflection layer installed in the film allows the film to be placed on a table or in the hands when it is seen from the front, and the light source is on the front of the film so that weak light from the back side of the film can be blocked by the single reflection layer, so the film looks like a paper. However, if the film is put on a film viewer which is higher than the film front in terms of brightness, light from the back can penetrate the single reflection layer, thus making the film present a transparent stereo effect that is almost the same as traditional films and convenient for doctors used to see transparent films. Therefore, the film of the invention has an enlarged range of application and is helpful for doctors to diagnose the conditions of patients more accurately.

Description

Technical field [0001] The invention relates to a medical film and a preparation method thereof, in particular to a medical single reflection film and a preparation method thereof. Background technique [0002] Medical film has been used for more than one hundred years. The original film was called salt-silver film. At that time, the film was imaged by X-rays. X-rays passed through the human body and then imaged on the film, and then developed and fixed. The price of imaging is not very high. The price of each film is about RMB 4.5. Many domestic manufacturers also produce it. However, in the mid-1990s, large foreign manufacturers formulated the digital medical imaging technology standard, that is, the DICOM graphic standard under the PACS system. After X-rays pass through the human body, the film is no longer imaged by the IP board (CR). , Data flat panel (DR, DSA), collector (CT) collect, and then send the image to the dry camera through the computer, which is imaged by the dr...

AI Technical Summary

Problems solved by technology

However, the laser printer said that the printed film has many details that are not in place, mainly reflected in the following situations: First, in the CT lung window picture, the lung texture inside is made of many hairs. It is composed of white fine lines. If the texture of the lungs becomes thicker, it means that the lungs are inflamed, and the film printed by our laser machine will look a bit thick even if it is the lung texture of a normal person; second, the chest X-ray of DR , the reason is the same as above, and the lung markings are relatively thick; third, the probability of malignant tumors that accumulate in the lungs is identified. There are many patients with lung accumulations, but when judging whether this accumulation is a malignant tumor, it is necessary to observe whether there is any tumor around the accumulation. Some hair-thin radial blood vessels, if there are, these aggressive blood vessels indicate that this accumulation is likely to be a malignant tumor, but when using our laser technology to print film, these details are difficult to see; Fourth, the lesions of the trabecular bone, the lesions of the trabecular bone are also very subtle, and some changes in the depth and texture of the image can enable the doctor to judge the general state of the disease, but when printed by our laser machine, these Can't see the details

Therefore, laser printing technology also has defects in medical film printing.

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