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An X-ray image digital measurement and correction device and method

A technology of measurement correction and digital measurement, which is applied in medical science, instruments for radiological diagnosis, diagnosis, etc., can solve the problems of inability to accurately measure the size of limb parts and the magnification error of X-ray plain film, and achieve the elimination of measurement Effects of Error, Simplified Calculation, and Accurate Magnification

Active Publication Date: 2015-08-19
ADVANCED SYST DEV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide an X-ray image digital measurement and correction device and method, which can solve the problem that the X-ray plain film cannot accurately measure the size of the photographed limb parts in medical institutions due to the existence of photographing magnification errors

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  • An X-ray image digital measurement and correction device and method

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0030] Such as figure 1 As shown, the X-ray image digital measurement and correction device provided by the present invention includes a base 1 , a vertical support rod 2 , a lateral support rod 3 , a ruler 4 , a metal ball 5 and a metal ball 6 . The vertical support rod 2 is fixed on the base 1; the vertical support rod 2 is connected with the lateral support rod 3 through the universal joint 7, so that the vertical support rod 2 and the lateral support rod 3 can slide mutually, and the lateral support rod 2 It can be rotated in the horizontal plane and the vertical plane, so that the spatial position of the transverse support bar 2 can be adjusted in time and conveniently, so as to adapt to the size measurement of bones in different parts. One end of straightedge 4 and lateral support bar 2 is co...

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Abstract

The invention discloses a correcting device and method for X-ray image digital measurement. The correcting device comprises a base, a longitudinal supporting rod, a transverse supporting rod, a straight edge and two metal balls, wherein the longitudinal supporting rod is fixed on the base; the longitudinal supporting rod and the transverse supporting rod are connected and can slide mutually, and the transverse supporting rod can rotate in the horizontal plane and the vertical plane; the straight edge is connected with one end of the transverse supporting rod, and the straight edge can rotate in the horizontal plane and the vertical plane; the two metal balls are respectively arranged at one end of the straight edge, and the centers of the two metal balls coincide with the calibration starting point and the calibration ending point of the straight edge respectively; the straight edge is made of plastic and is provided with metal calibrations. According to the correcting device for the X-ray image digital measurement, a reference substance of the balls is provided, so that the measurement errors caused by different irradiation directions due to non-sphere shape characteristics are eliminated, the computation of magnification can be more simplified, and more accurate magnification can be obtained. According to the correcting device and method for the X-ray image digital measurement, the femoral head and femoral neck can be conveniently and accurately measured.

Description

technical field [0001] The invention relates to an X-ray image digital measurement and correction device and method. Background technique [0002] X-ray films are one of the most commonly used inspection methods in medical structures. Accurate measurement of limb parts on X-ray films is of great value for clinical diagnosis, operation planning, treatment, and evaluation of operation results. However, due to X-ray radiation sources (Focus) is a point light source. According to the principle of geometric projection in X-ray photography, the image formed on the X-ray film after irradiating the limb will have different degrees of magnification compared with the real size of the limb due to various factors. The magnification It is related to the positions of focus, body and film. [0003] Chinese patent application CN202313372U discloses a kind of X-ray film measuring ruler, and Chinese patent application CN2562165Y discloses a kind of X-ray lesion measuring device, and their di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/00
Inventor 王兰芬刘文博郗魁斌
Owner ADVANCED SYST DEV
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