KR100990479B1 - X-ray apparatus having structure for setting source to image distance - Google Patents

Abstract

The present invention provides an x-ray apparatus, comprising: a main body having an x-ray light source unit at one side; A collimator assembly coupled to one side of the main body; And a detector for detecting X-rays emitted from the X-ray light source unit. It includes, The collimator assembly, Collimator for adjusting the irradiation range of the X-rays emitted from the X-ray light source unit; lamp; A mirror reflecting light emitted from the lamp; A collimator window displaying a scale for transmitting the light reflected from the mirror to reflect the scale on the light receiving unit; And an auxiliary light source unit configured to be inclined at a predetermined angle with respect to a central axis of the light reflected from the mirror to emit light to the light receiving unit.

Description

X-ray apparatus having structure for setting source to image distance}

The present invention relates to a portable and medical x-ray device having a structure for adjusting the focal-water plane distance.

X-ray apparatus uses X-rays, which vary in absorbance depending on materials, to show the difference in absorption rates of various organs inside the human body as X-ray images (images of shadows in which various structures in the human body are projected onto a film). Such X-ray apparatuses are used for non-destructive testing to detect defects in structures as well as for medical purposes.

Among them, the conventional X-ray apparatus used for medical treatment is mostly large and heavy and is generally installed in a medical institution.In order to use the X-ray apparatus, the X-ray which is mounted in a vehicle when visiting a medical institution equipped with an X-ray apparatus or during an external business visit of a medical institution is used. Since it was necessary to use an imaging device, it was not easy to use for patients with uncomfortable behavior.

Due to the above problems, a small x-ray apparatus is required, and recently, a small x-ray apparatus that is easy to carry and install has been developed. X-ray light source provided in such a small X-ray device is unlike the X-ray light source provided in the conventional large x-ray device can generate the X-rays even at a relatively low voltage could be developed a miniature X-ray device.

However, such an X-ray apparatus has a problem in that setting is required for each shot, unlike a general type of x-ray apparatus. That is, when installing the X-ray apparatus, the center of the X-rays emitted from the light source is irradiated perpendicularly to the center of the detector, and if necessary, set by setting the source to image distance (SID) between the focus and the image plane of the detector. There are a number of cumbersome steps to do. In addition, there is a hassle that needs to be measured using a tape measure or the like provided with a distance between the focus and the water plane of the detector. If these settings are made incorrectly, the result of X-ray imaging is not good, so it takes a long time for accurate setting, and the problem is that the setting is not easy for the unskilled people.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-described problems of the prior art and the technical problems required from the past.

It is an object of the present invention to provide an x-ray device comprising a structure that allows a simple, easy and accurate alignment of the focal-water plane distance (SID).

Another object of the present invention is to provide an X-ray apparatus that can be used for portable and medical purposes.

An X-ray apparatus according to the present invention for achieving the above object, the main body having an X-ray light source unit on one side; A collimator assembly coupled to one side of the main body; And a detector for detecting X-rays emitted from the X-ray light source unit. It includes, The collimator assembly, Collimator for adjusting the irradiation range of the X-rays emitted from the X-ray light source unit; lamp; A mirror reflecting light emitted from the lamp; A collimator window displaying a scale for transmitting the light reflected from the mirror to reflect the scale on the light receiving unit; And an auxiliary light source configured to be inclined at a predetermined angle with respect to the central axis of the light reflected from the mirror to emit light to the light receiving unit.

In a preferred embodiment, the light-receiving unit is the detector, and the scale displayed on the collimator window forms a structure displayed on the detector.

In a preferred embodiment, further comprising a table for positioning the X-ray imaging object between the X-ray light source unit and the detector, the light receiving unit is the table, the scale displayed on the collimator window has a structure displayed on the table.

In a preferred embodiment, the detector is in the form of a large area digital sensor for sensing X-rays or a film for exposing the X-rays.

In a preferred embodiment, the collimator assembly is coupled in a structure that is rotated on one side of the body.

In a preferred embodiment, the auxiliary light source unit forms a structure in which a laser or visible light is emitted.

In an exemplary embodiment, the distance between the X-ray light source unit and the detector may be adjusted by moving the detector while the X-ray light source unit is fixed, or by moving the X-ray light source unit while the detector is fixed, or by the X-ray light source unit. And both the detector moves.

In a preferred embodiment, the auxiliary light source unit includes a rotation angle adjustment screw that can be finely adjusted, and forms a structure for adjusting the angle of light emitted from the auxiliary light source unit by adjusting the rotation angle adjustment screw.

According to the present invention as described above, by providing a structure that can easily and accurately match the focal-water surface distance (SID), it is possible to provide an X-ray apparatus with improved convenience and precision of X-ray imaging results.

In addition, the x-ray apparatus according to the present invention can be used for portable and medical, and provides an effect that can be used for X-ray imaging of animals as well as humans.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings, but the present invention is not limited by the scope of the present invention. In addition, in the drawings, the length, thickness, etc. of the layers and regions may be exaggerated for the convenience of description. Like numbers refer to like elements throughout.

1 is a perspective view of an x-ray apparatus according to a first exemplary embodiment of the present invention, and FIGS. 2 and 3 are cross-sectional views of the x-ray apparatus of FIG. 1.

1 to 3, the X-ray apparatus 100 has a structure including a main body 110, a collimator assembly 120, and a detector 130.

An X-ray light source unit 114 is provided at one side of the main body 110, and the collimator assembly unit 120 is coupled to one side of the main body 110 provided with the X-ray light source unit 114. The detector 130 detects X-rays emitted from the X-ray light source unit 114.

The collimator assembly unit 120, the collimator 125 for adjusting the irradiation range of the X-rays emitted from the X-ray light source unit 120, the lamp 122, the light emitted from the lamp 122 to the detector 130 In the mirror 124 to reflect, the collimator window 128 with the scale 129 is displayed so that the scale is reflected on the detector 130 when the light reflected from the mirror 124 is transmitted, and in the mirror 124 The auxiliary light source unit 126 for emitting light to the detector 130 in a structure inclined at a predetermined angle with respect to the central axis of the reflected light is provided.

The detector 130 may be a large-area digital sensor for detecting X-rays emitted from the X-ray light source unit 120 or a film for exposing the X-rays.

The light emitted from the auxiliary light source unit 126 is not particularly limited as light that can be visually identified, and may be, for example, laser or visible light. Therefore, the X-ray apparatus according to the first exemplary embodiment of the present invention can be used in a portable manner, and when the human is photographed, visible light is used as an auxiliary light source, and when an animal is photographed, a laser can be used as an auxiliary light source.

The process of matching the SID in the X-ray apparatus 100 is as follows.

When the lamp 122 of the collimator assembly 120 is turned on, the light of the lamp 122 is reflected by the mirror 124 to be illuminated by the detector 130. At this time, as the light of the lamp 122 passes through the collimator window 128, the scale 129 formed in the collimator window 128 is illuminated on the detector.

On the other hand, when light is emitted from the auxiliary light source unit 126, the SID is adjusted through the position of the scale 129 'projected on the detector 130 and the position of the light projected on the scale 129'. That is, when the SID is set when the light is positioned on the detector at the center A of the scale 129 ', the main body 110, or the detector 130, or the main body 110 and the detector 130 Move it forward or backward so that the light is in the center of the scale (A).

In addition, since each scale corresponds to a different value of SID, as shown in FIG. 3, when the required SID value is larger than the value of the SID of FIG. 2 (D '> D), the corresponding scale A' on the detector 130 is used. ) To match the light's position. At this time, the light is not positioned at the center A of the scale, but is positioned at the scale A 'corresponding to the SID so that the SID is aligned. Also at this time, the SID is adjusted by moving the main body 110 or the detector 130, or the main body 110 and the detector 130 forward or backward so that the light is positioned at the center A 'of the scale.

4 is a front view of a structure in which a collimator assembly is coupled to a main body.

A scale 129 is formed in the collimator window 128 of the collimator assembly 120 in a left-right direction from the center. The scale 129 is formed closely on the center portion, and is formed in a structure in which the interval between the scales 129 increases toward left and right sides.

The collimator assembly 120 forms a structure that is rotated on one side combined with the main body 110. That is, the collimator assembly 120 may be rotated by 90 degrees so as to easily match the SID according to the position, structure, and other needs of the detector to which the laser and light are irradiated (FIG. 2: 130).

5 is a perspective view of an x-ray apparatus according to a second exemplary embodiment of the present invention, and FIGS. 6 and 7 are cross-sectional views of the x-ray apparatus of FIG. 5.

5 to 7, the X-ray apparatus 101 has a structure including a main body 110, a collimator assembly 121, and a detector 130.

An X-ray light source unit 114 is provided at one side of the main body 110, and the collimator assembly unit 121 is coupled to one side of the main body 110 provided with the X-ray light source unit 114. The detector 130 detects X-rays emitted from the X-ray light source unit 114.

The collimator assembling unit 121, the collimator 125 for adjusting the irradiation range of the X-rays emitted from the X-ray light source unit 114, the lamp 122, the light emitted from the lamp 122 to the detector 130 A collimator window 127 displaying an alignment mark for reflecting the mirror 124 and an alignment mark having a '+' shape on the detector 130 when the light reflected from the mirror 124 is transmitted; And an auxiliary light source unit 140 that emits light to the detector 130 and has an adjustable angle.

The process of matching the SID in the X-ray apparatus 101 is as follows.

When the lamp 122 of the collimator assembly 121 is turned on, the light of the lamp 122 is reflected by the mirror 124 to be illuminated by the detector 130. At this time, the light of the lamp 122 passes through the collimator window 127, the alignment mark of the '+' shape formed in the collimator window 128 is illuminated on the detector 130.

On the other hand, by rotating the auxiliary light source unit 140 to adjust the angle so that the light emitted from the auxiliary light source unit 140 is located at the center of the '+' shaped alignment mark reflected on the detector 130. (The structure and operating principle of the auxiliary light source unit 140 will be described in detail in the description of FIGS. 8 and 9.) The angle at which the auxiliary light source unit 140 is rotated corresponds to the value of the SID. That is, each rotated angle value corresponds to the value of each SID. Therefore, when matching the required SID value, after rotating the auxiliary light source unit 140 at an angle corresponding to the required SID value, the light emitted from the auxiliary light source unit 140 is aligned mark of the detector 130. The main body 110 or the detector 130 is moved so as to be positioned at the center so as to fit the SID.

For example, as shown in FIG. 7, when the required SID value is larger than the value of the SID of FIG. 6 (D ′> D), the value of the rotation angle B ′ of the auxiliary light source unit 140 corresponding to the D ′ value. Derived and rotated so that the auxiliary light source unit 140 is the rotation angle (B ').

Thereafter, the main body 110 or the detector 130 is moved so that the laser emitted from the auxiliary light source unit 140 is positioned at the center of the alignment mark of the detector 130.

That is, when the SID is properly adjusted, the light emitted from the auxiliary light source 140 is formed in the center of the alignment mark.

8 is a cross-sectional view of the x-ray apparatus according to the third embodiment of the present invention.

Referring to FIG. 8, the X-ray apparatus 103 further includes a table 150 in the X-ray apparatus 100 of the first embodiment. That is, a table 150 is positioned between the X-ray light source 114 and the detector 130, and the focal-water plane distance SID is adjusted to the table 150. Specifically, the scale of the collimator window (FIG. 1: 128) is reflected on the table 150 and the light of the auxiliary light source 126 is also reflected on the table 150, according to the description of the first embodiment. To set the SID. That is, the X-ray apparatus according to the third embodiment of the present invention can be used for medical use, and when a human is photographed, visible light is used as an auxiliary light source, and when an animal is photographed, a laser can be used as an auxiliary light source.

Such a table 150 is further included, and the structure for setting the distance between the X-ray light source unit 114 and the table 150 to SID is applicable not only to the first embodiment but also to the structure of the second embodiment. Of course it can be.

9 and 10 show the auxiliary light source portions of FIGS. 6 and 7 as enlarged views, respectively.

9 and 10, the auxiliary light source unit 140 is a fixed lower plate 148, a rotating upper plate 143 connected to an axis so as to be rotated at a predetermined angle on the fixed lower plate 148, and the rotating upper plate 143. Rotation for rotating the spring 146, the light source 142 mounted on the rotary top plate 143, and the rotary top plate 143 are provided on both sides of the) to provide a restoring force for the rotation of the rotary top plate 143 An angle adjusting screw 145 is provided.

For example, when the rotation angle adjustment screw 145 is adjusted to change the rotation angle to B as shown in FIG. 9 while the rotation angle is B 'as shown in FIG. 10, the rotation angle adjustment screw 145 of FIG. An end presses one side of the rotary plate 143 so that the rotary plate 143 rotates about the shaft 144.

Therefore, the auxiliary light source unit 140 forms a structure in which the angle of the light source 142 is changed by adjusting the rotation angle adjusting screw 145.

1 is a perspective view of an x-ray apparatus according to a first embodiment of the present invention;

2 and 3 are cross-sectional views of the x-ray apparatus of FIG. 1;

4 is a front view of a structure in which a collimator assembly is coupled to a main body;

5 is a perspective view of an x-ray apparatus according to a second embodiment of the present invention;

6 and 7 are cross-sectional views of the x-ray apparatus of FIG. 5;

8 is a sectional view of an x-ray apparatus according to a third embodiment of the present invention;

9 is an enlarged view of an auxiliary light source unit of the X-ray apparatus of FIG. 6;

FIG. 10 is an enlarged view of the auxiliary light source unit of the X-ray apparatus of FIG. 7.

Claims (8)

A main body having an X-ray light source unit at one side; A collimator assembly coupled to one side of the main body; And A detector for detecting X-rays emitted from the X-ray light source unit; Including; The collimator assembly, A collimator for adjusting an irradiation range of X-rays emitted from the X-ray light source unit; lamp; A mirror reflecting light emitted from the lamp; A collimator window displaying a scale for transmitting the light reflected from the mirror to reflect the scale on the light receiving unit; And And an auxiliary light source configured to be inclined at a predetermined angle with respect to the central axis of the light reflected from the mirror to emit light from the light receiving unit. The method of claim 1, The light-receiving unit is the detector, and the scale displayed on the collimator window to be displayed on the detector. The method of claim 1, And a table for positioning an X-ray imaging object between the X-ray light source unit and the detector, And the light receiving unit is the table, and the scale displayed on the collimator window is displayed on the table. Claim 4 was abandoned when the registration fee was paid. The method of claim 1, The detector is a digital sensor for detecting X-rays or X-rays, characterized in that the film for the X-rays. The method according to any one of claims 1 to 4, The collimator assembly is x-ray apparatus, characterized in that coupled to the structure rotated on one side of the body. Claim 6 was abandoned when the registration fee was paid. The method according to any one of claims 1 to 4, The method according to any one of claims 1 to 4, The distance adjustment between the X-ray light source unit and the detector may be such that the detector moves while the X-ray light source unit is fixed, or the X-ray light source unit moves while the detector is fixed, or the X-ray light source unit and the detector move. X-ray apparatus, characterized in that achieved. The method of claim 1, The auxiliary light source unit is provided with a rotation angle adjustment screw that can be fine-tuned, X-ray apparatus characterized in that for adjusting the angle of the light emitted from the auxiliary light source by adjusting the rotation angle adjustment screw.

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