X-ray digital imaging device

Abstract

An improved CCD (charge coupled device) detector belongs to the field of medical electronic equipment and comprises scintillation screen which converts X rays into visible light. A visible light reflector is arranged at a proper position so that the visible light reflector and the scintillation screen form a 45-degree angle, a photoelectric imaging device is arranged in a proper direction so that a 45-degree angle is formed between the photoelectric imaging device and the reflector, the photoelectric imaging device is placed in a peripheral lead protecting layer, the reflector is rectangular, and the specification of the reflector is 17X17 square inches. The improved CCD detector only provided with one reflector not only increases imaging quality, but also reduces production cost. Imaging area is increased and reaches 17X17 square inches, convenience for users is improved, and wide-body shooting can be realized more accurately.

Description

Technical field [0001] The invention relates to medical electronic equipment, in particular to an X-ray digital imaging device for medical diagnosis and detection. Background technique [0002] X-ray imaging detection equipment used for medical diagnosis and pathological examination has been widely used at home and abroad as a mature technology. As early as 1997, a "portable pulse digital X-ray imaging device ( Patent Application No. 97242603.0)". In the structure disclosed in this patent, only one area array CCD charge coupling device is used to realize photoelectric conversion, so the captured image is not clear. To capture a clear image, a combination of multiple CCDs is required , Which will make the equipment complex and expensive. In the existing technology, there are many image plate technologies, such as poly-selenium, poly-silicon, etc. can also be used in various [0003] Different X-rays, but they all have shortcomings, either the price is too high, or the image is not...

AI Technical Summary

Problems solved by technology

[0003] Different X-rays, but there are also shortcomings, or the price is too high, or the image is not clear enough, they have not reached the point of realization

The later authorized patent 03275618.3 "A X-ray Digital Imaging Breast Scanning Device" records that the CMOS linear array scanning imaging device has high resolution, fast imaging speed, low pollution and other factors, but due to the use of linear array sensors, it takes It takes a lot of time to scan the image, and it cannot be continuously imaged. The X-ray utilization efficiency is low. The device itself is affected by X-ray radiation during work, which damages the working quality of the device. Array imaging instead of linear scanning imaging has become a development trend. So far, the patent 200420096161.7 "a general digital imaging device for X-ray imaging" authorized on November 2, 2005 has been improved. The device uses a mirror to change the optical path. Direction, the device not only has clear imaging, high detection accuracy, but also has obvious advantages such as low power consumption and low cost, but there are still some unsatisfactory aspects in use, because the incident light path and the reflected light path are located in different orthogonal directions , so the volume of the equipment is relatively large, and because the optical imaging device (CCD or CMOS device) is in a non-protected area, these devices are inevitably damaged by X-ray radiation, resulting in performance deterioration

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