CN201398972Y - X-ray medical digital imaging device based on fluoroscopic screen imaging - Google Patents

Abstract

The utility model discloses an X-ray medical digital imaging device based on fluoroscopic screen imaging The X-ray medical digital imaging device is characterized in that the X-ray medical digital imaging device comprises an X-ray generator, a fluoroscopic screen, a lens, an imager, an image collection card and a computer; the image of a human body projected by high-pressure X rays is presented onthe medical fluoroscopic screen through the X-ray generator; the image on the fluoroscopic screen is collected by the lens, the imager and the image collection card; after the conversion of X rays and visible light are realized, the X rays and visible light are transmitted to the computer or an LCD display by a data line or a Bluetooth wireless; and the collective image of X rays with less dosageis restored and reinforced for auxiliary diagnosis of the doctor through the computer or the LCD display. Compared with the prior art, the X-ray medical digital imaging device has the advantages of simple structure, convenient operation, high imaging definition and low manufacturing cost, facilitates data management and network transmission of image medical history and creates conditions for remote diagnosis, and is particularly suitable for popularization and application in the medical organizations in the community and rural town.

Description

A kind of X ray medical digital imaging device based on the fluorescent screen imaging

Technical field

This utility model relates to medical image digital technology field, specifically a kind of X ray medical digital imaging device based on the fluorescent screen imaging.

Background technology

Along with electronic technology and development of computer, the digital imaging system of X ray is gradually in the large hospital promotion and application.Because digitalized image has the advantage that the imaging expense is low, image taking speed is fast, easy to operate than traditional film, and be convenient to carry out the data base administration and the network transmission of image case history, for remote diagnosis has been created condition.Particularly along with the development of system of social security, inexpensive, portable digital X radiation imaging apparatus more and more is subjected to the attention of community and small towns medical treatment.

Find that by prior art documents the X ray digital imaging method that adopts of hospital mainly contains CR (computer radiography) system, image amplifier method and based on three kinds of DR (direct radiography) systems of dull and stereotyped semiconductor detector at present.Earlier (Imaging Plate IP) carries out the collection of image information, after by reading device the image information in the imaging plate being read then, is handled by Computerized image processing system with imaging plate in the CR system.Although CR is faster than film speed, the image plate must be removed from the X ray exposure room, put it in the reader then, thereby can not provide the institute of X ray digital technology to have superiority.Early stage DR adopts intensifying screen to add optical lens coupled CCD (digitized bonder) to obtain the digital X ray image, and the CCD receptor is made up of photodiode, constitutes the row and the row of a sensor sequence (a panadaptor grid).Charge Storage is in each photodiode, and the energy every trade is transmitted, and arrives the edge of CCD, and signal is exaggerated then.The major advantage of CCD technology is to obtain dynamic image continuously, and the spatial resolution height of image.Single CCD that Shenzhen Angell Technology Co., Ltd. produces, the DR system of big face battle array design just belongs to this product.The DR of widespread usage mainly is that the picture signal that adopts flat panel detector (FPD) that X ray is produced scans and directly reads now, image-forming principle is to be earlier that the thin layer (TFT) that visible light is formed by photodiode is assembled with the X ray signal transition, is directly read by special reading circuit and send computer system to handle.DR (direct radiography) system of the dull and stereotyped semiconductor detector of being made up of amorphous selenium, non-crystalline silicon or CCD is because of its image that can directly create number format, has better spatial resolution and dynamic range and developed rapidly.

But the price of the above-mentioned X ray digital imaging system that large hospital adopts is all quite expensive, is unaffordable to community and township hospital.Simultaneously, the production difficulty of critical component is big, cost is high, is difficult to popularization and application.

From patent European Patent 264218, can learn that a kind of CCD of utilization collection X ray is created on the image on the fluorescent screen, then the acquisition image is carried out digital processing, require CCD to be cooled at least-400C, to reduce noise.But, thereby there not be consideration in medically application because the time of exposure of equipment is generally several minutes even a few hours.

Guo Mingan etc. are at " sensor technology " 2004,23 (9): 84-85, the paper of delivering on 88 " based on the Pulsed X-ray real-time imaging system of CCD " is made up of high-voltage pulse x-ray source, X ray intensifying screen, ccd video camera, image acquisition and panel and computer and related software.Intensifying screen is selected the green rare earth intensifying screen of the high sense of conversion efficiency for use; Image acquisition needs the strict accurately triggering synchronously of triggering signal; Be used for industrial detection.

Magnify roc etc. at " nuclear electronics and Detection Techniques " Vol.27 (3): the paper that 571-575 delivers " based on the coupled digital X-ray imaging system design of CCD-camera lens with improve ", by conversion screen (making) X ray is converted to visible light by scintillation crystal or phosphorus, be 45 ° reflecting medium reflection again through the angle of inclination, make luminous ray arrive optical lens.Optical lens is collected light and imaging on the CCD chip, and picture signal is digitized and by data collecting system input computer, uses corresponding software that image is shown at last and handles.

Patent ZL200620123031.7 " X ray digital imaging apparatus ", a kind of X ray digital imaging apparatus with low cost is provided, illuminator reflexes to digital camera with the visible light of light conversion screen, digital camera and illuminator all are contained in the same camera bellows, be connected with outside with USB interface, available low-light level night vision device is replaced digital camera work.

Summary of the invention

The purpose of this utility model is a kind of X ray medical digital imaging device based on the fluorescent screen imaging that provides at the deficiencies in the prior art, it adopts recovery and the enhancing of digital image processing techniques to the low dose X-ray image, make the medical image quality improve greatly, be convenient to data management and network transmission that the doctor carries out medical diagnosis and image case history, for remote diagnosis has been created condition, and imaging device low cost of manufacture, easy and simple to handle, be convenient for carrying, be particularly suitable for the promotion and application of community and small towns medical institutions.

The concrete technical scheme that realizes this utility model purpose is: a kind of X ray medical digital imaging device based on the fluorescent screen imaging, characteristics are that this device is made up of x ray generator, fluorescent screen, imager, image pick-up card and computer, imager is CCD or CMOS, which is provided with the microspur wide-angle lens, imager and fluorescent screen are arranged in the darkroom, and the darkroom external fixation is connected with the image pick-up card that bluetooth transmits; Image pick-up card is gathered fluoroscopic image, and realize being sent to computer or being provided with the LCD display that bluetooth receives by data wire or blue teeth wireless after the conversion of X ray and visible light, computer or be provided with LCD display that bluetooth receives the image of low dose X-ray collection is recovered and strengthens after supply the doctor that common disease is carried out computer-aided diagnosis.

This utility model compared with prior art has the advantage that apparatus structure is simple, easy to operate, image quality is high, production cost is low, especially is fit to the promotion and application of community and small towns medical institutions.

Description of drawings

Fig. 1 is this utility model structural representation

Fig. 2 implements illustration for this utility model

The specific embodiment

Embodiment 1

Consult accompanying drawing 1, this utility model is made up of the LCD display 9 that x ray generator 1, fluorescent screen 2, imager 5, image pick-up card 6 and computer 8 or bluetooth receive, imager 5 is CCD or CMOS, which is provided with microspur wide-angle lens 4 and together be arranged in the darkroom 3 with fluorescent screen 2, darkroom 3 external fixation are connected with bluetooth and transmit 7 image pick-up card 6; X ray generator 1 is arranged on a side of the fluorescent screen 2 outside the darkroom 3; Image pick-up card 6 transmits 7 by data wire 10 or bluetooth and is transferred to computer 8 or is provided with the LCD display that bluetooth receives.

Consult accompanying drawing 2, this utility model is work like this: required perspective position is placed between x ray generator 1 and the darkroom 3, open x ray generator 1 then, x ray generator 1 is with low dosage high voltage x-ray process tissue 11 imaging on fluorescent screen 2 of sending, by microspur wide-angle lens 4, image on 6 pairs of fluorescent screens 2 of CCD or cmos imager 5 and image pick-up card is gathered, after the conversion of the image that collects by X ray and visible light, by data wire 10 or bluetooth transmission 7 still image or successive video image are sent to computer 8 or are provided with the LCD display 9 that bluetooth receives, by computer 8 or be provided with LCD display 9 that bluetooth receives and the image of low dose X-ray collection is recovered and strengthen, after reaching the requirement of the required medical image of diagnosis, common disease is carried out computer-aided diagnosis for the doctor.Using low dose X-ray is in order to reduce the radiation to human body, but low dose X-ray makes the quality of image that is become poor, therefore need not lose image detail, not introduce noise, not cause under the prerequisite of details distortion, the X ray medical image is strengthened and recovery, to reach the requirement of the required medical image of diagnosis.

Above embodiment just is described further this utility model, is not in order to the restriction this patent, and all is that this utility model equivalence is implemented, and all should be contained within the claim scope of this patent.

Claims (1)

1, a kind of X ray medical digital imaging device based on the fluorescent screen imaging, it is characterized in that this device is made up of x ray generator (1), fluorescent screen (2), imager (5), image pick-up card (6) and computer (8), imager (5) is CCD or CMOS, which is provided with microspur wide-angle lens (4), imager (5) is arranged in the darkroom (3) with fluorescent screen (2), and darkroom (3) external fixation is connected with the image pick-up card (6) that bluetooth transmits (7); Image pick-up card (6) is gathered the image of fluorescent screen (2), and realize that transmitting (7) by data wire (10) or bluetooth after the conversion of X ray and visible light is transferred to computer (8) or is provided with the LCD display (9) that bluetooth receives, computer (8) or be provided with LCD display (9) that bluetooth receives the image of low dose X-ray collection is recovered and strengthens after supply the doctor that common disease is carried out computer-aided diagnosis.

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