KR101658279B1 - X-ray photographing apparatus - Google Patents

Abstract

The present invention provides an X-ray photographing apparatus having a first sensor for CT photographing and a second sensor for panoramic photographing, and capable of performing CT photographing or panoramic photographing by varying the position of the second sensor depending on the kind of photographing .
An X-ray imaging apparatus of the present invention for this purpose includes an X-ray source portion for irradiating X-rays, an X-ray sensor portion for irradiating the X- And the X-ray sensor unit comprises: a base member; A first sensor fixed to one lower end of the base member; The first position being parallel to the front of the first sensor to be able to detect X-rays, and the second position being parallel to the bottom of the base member so that X-ray detection using the first sensor is possible A second sensor; And link means rotatably connected to both ends of one side of the base member and one side of the second sensor, respectively, and pivotally connected to the other side of the second sensor so that the other side of the second sensor contacts the X- And an actuating unit configured to change the position of the second sensor.

Description

[0001] X-RAY PHOTOGRAPHING APPARATUS [0002]

The present invention relates to an X-ray photographing apparatus, and more particularly, to a X-ray photographing apparatus having a first sensor for CT photographing and a second sensor for panoramic photographing, Or an X-ray photographing apparatus capable of performing panoramic photographing.

Generally, in the dentistry, an X-ray imaging apparatus capable of performing X-ray imaging is installed to treat teeth and various periodontal diseases, and to grasp the state of the teeth and alveolar bone for the purpose of correction of the dental heat.

The X-ray imaging apparatus can be classified into an X-ray imaging apparatus for CT (computerized tomography) capable of capturing a three-dimensional stereoscopic image and a panoramic X-ray imaging apparatus capable of imaging in two-dimensional plane.

An X-ray imaging apparatus for CT is an imaging apparatus that displays a single-faced image of a body that can not be represented by a normal imaging. The X-ray is projected on a human body while rotating at a constant angle over 360 degrees. The transmitted X- And reconstructs the absorption value of the cross section of the human body to display the image.

The panoramic X-ray photographing apparatus is a device that can take panoramic photographs so that the entire tooth state and the jaw joint can be seen at a glance by photographing the whole in the circumferential direction around the X-ray generating device.

Recently, an X-ray imaging apparatus capable of both X-ray CT imaging and panoramic X-ray imaging has been developed.

For example, in Korean Patent Laid-Open No. 10-2010-0106879, a CT sensor and a panoramic sensor selectively point toward a light source, and the CT sensor and the panoramic sensor acquire a CT X-ray image and a panoramic X-ray image of the subject, respectively A configuration has been disclosed.

More specifically, FIG. 10 of the above-mentioned Japanese Patent Application Laid-Open No. 10-2010-0106879 discloses a configuration in which the first X-ray sensor 142d is configured so as to rotate, and can be photographed by two sensors, respectively.

However, in the above structure, when the first X-ray sensor 142d is rotated to the photographing position for photographing, the position of the first X-ray sensor 142d can not be precisely controlled and the image quality is deteriorated.

In other words, it is difficult to precisely position the first X-ray sensor 142d to a photographing position vertical to the light source of the light source unit by rotating the first X-ray sensor 142d through one rotation axis, The quality of the image is deteriorated.

Published Patent Application No. 10-2010-0106879 (October 04, 2010)

The object of the present invention is to provide a panoramic photographing apparatus which includes a first sensor for taking a CT image and a second sensor for taking a panoramic image, Or an X-ray photographing apparatus capable of performing panoramic photographing.

According to an aspect of the present invention, there is provided an X-ray imaging apparatus including an X-ray source unit for irradiating X-rays, and an X-ray sensor unit for irradiating the X- Wherein the X-ray sensor unit comprises: a base member; A first sensor fixed to one lower end of the base member; The first position being parallel to the front of the first sensor to be able to detect X-rays, and the second position being parallel to the bottom of the base member so that X-ray detection using the first sensor is possible A second sensor; And link means rotatably connected to both ends of one side of the base member and both ends of one side of the second sensor, and a link means rotatably connected to the other side of the second sensor such that the other side of the second sensor contacts the X- And an actuating unit configured to change the position of the second sensor.

Preferably, the link means includes: a pair of first brackets provided below both ends of one side of the base member; A pair of second brackets provided at both ends of one side of the second sensor; And a pair of pivotal links each having one end rotatably connected to the first bracket and the other end rotatably connected to the second bracket.

Preferably, in a state in which the second sensor is positioned in the second state, the pivotal link may be in a tilted state such that one end position is higher than the other end position.

Preferably, the driving means includes: a driving bracket provided on the other side of the second sensor; A drive link which is rotatably connected to the drive bracket at one end so as to be linearly movable toward the X-ray source side; And a driving source connected to the other end of the driving link and linearly moving the driving link.

Preferably, the base member is formed with a rectangular slot through which the driving link is linearly movable, and the driving source includes a moving body to which the other end of the driving link is connected; A moving screw spirally coupled with the moving body; And a driving motor for linearly moving the moving body by rotating the moving screw in normal and reverse directions.

Preferably, the other end of the second sensor is formed with a slit groove extending in a linear movement direction of the driving link, and in a state in which the second sensor is positioned in the second state, Can be inserted and positioned.

Preferably, a linear movement guide block is provided on a corresponding surface of the moving body facing the base member, and the base member includes a linear movement guide rail coupled with the linear movement guide block to guide linear movement of the base member .

As described above, according to the present invention, a first sensor for CT photographing and a second sensor for panoramic photographing are provided, and the CT scanner or the panorama photographing can be performed by changing the position of the second sensor depending on the type of photographing .

Also, there may be provided a link means rotatably connected to both ends of one side of the base member and one side of the second sensor, and driving means rotatably connected to the other side of the second sensor and linearly movable toward the X- By changing the position of the second sensor, it is possible to prevent the flow of the second sensor when the position of the second sensor changes or in the first state or the second state of the second sensor.

Further, in a state in which the second sensor is positioned in the second state, the tilting link is tilted so that the position of one end is higher than the position of the other end, so that when the position is changed from the second state to the first state, Can be prevented.

Further, in a state in which the second sensor is positioned in the second state, since the drive link of the drive means is inserted and positioned in the slit groove formed in the other end of the second sensor, the operation distance can be shortened.

In addition, there is an advantage that the positional change of the second sensor can be precisely and stably performed through the linear movement guide block and the linear movement guide rail.

1 is a perspective view showing a part of a conventional X-ray imaging apparatus.
FIG. 2 and FIG. 3 are perspective views illustrating a case where the second sensor of the X-ray imaging apparatus according to the embodiment of the present invention is positioned in the first state.
4 and 5 are perspective views showing a case where the second sensor of the X-ray imaging apparatus according to the embodiment of the present invention is positioned in the second state.
FIG. 6 is a front view showing the case where the second sensor of the X-ray imaging apparatus according to the embodiment of the present invention is positioned in the first state and the state in which the second sensor is positioned in the second state.

The present invention may be embodied in many other forms without departing from its spirit or essential characteristics. Accordingly, the embodiments of the present invention are to be considered in all respects as merely illustrative and not restrictive.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms.

The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, .

On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises", "having", "having", and the like are intended to specify the presence of stated features, integers, steps, operations, components, Steps, operations, elements, components, or combinations of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and a duplicate description thereof will be omitted.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 and 6, the X-ray imaging apparatus according to an embodiment of the present invention includes an X-ray source unit 200 for irradiating X-rays, And an X-ray sensor unit 100 for detecting X-rays passing through the head of the X-ray sensor unit 100.

The X-ray source unit 200 generates X-rays for X-ray imaging and irradiates X-rays toward the head of the examinee, and the X-ray sensor unit 100 is connected to the head of the examinee And then detects the X-rays passing through the head of the examinee after irradiation.

2 to 5, the X-ray sensor unit 100 includes a base member 110, a first sensor 120, a second sensor 130, actuators 141 and 143, ).

The base member 110 is a plate-shaped member, and is configured to be embedded in a casing (not shown) having a predetermined shape, and a rectangular slot 110h is formed along the longitudinal direction.

Specifically, the rectangular slots 110h are formed along the longitudinal direction as shown in FIG. 2, and the stepped portions 110h-1 are integrally formed.

The first sensor 120 may be a sensor fixed to the lower end of the base member 110. For example, the first sensor 120 may be a CT sensor, Likewise, it may be constituted by the plate portion 120a and the sensor portion 120b.

The second sensor 130 is disposed in parallel with the first sensor 120 to detect a first state (corresponding to (a) in FIG. 6) capable of detecting X- A sensor whose position is changed to a second state (corresponding to (b) of FIG. 6) that is positioned parallel to the bottom of the base member 110 so that X-ray detection can be performed, May be constituted by a sensor for panoramic photographing and may be constituted by a plate portion 130a and a sensor portion 130b as shown in FIG.

The link unit 141 and the driving unit 143 function to vary the position of the second sensor 130.

The link means 141 of the actuating portions 141 and 143 is rotatably connected to both ends of one side of the base member 110 and both ends of one side of the second sensor 130.

2 and 3, the link means 141 includes a pair of first brackets 141a provided below both ends of one side of the base member 110, A pair of second brackets 141b provided at both ends of one side of the first bracket 141 and one end of the second bracket 141b are rotatably connected to the first bracket 141a and the other end of the second bracket 141b is rotatably connected to the second bracket 141b And a pair of pivotal links 141c.

The driving unit 143 is rotatably connected to the other side of the second sensor 130 so that the other side of the second sensor 130 can move linearly toward the X-ray source unit 200 side.

2 and 3, the driving unit 143 includes a driving bracket 143a provided on the other side of the second sensor 130, one end of which is pivoted to the driving bracket 143a A drive link 143b configured to be linearly movable toward the X-ray source unit 200 side and a drive source 143b connected to the other end of the drive link 143b to linearly move the drive link 143b 143c.

5, the driving link 143b may be linearly movable along a rectangular slot 110h formed in the base member 110. Specifically, the driving link 143b may include a plurality of And a horizontal portion 143b-2 formed on an upper portion of the vertical portion 143b-1. The horizontal portion 143b-2 is formed on the upper end of the rectangular slot 110h, It can be assembled in a state of being hooked on the jaw portion 110h-1.

2, the driving source 143c includes a moving body 143c-1 to which the other end of the driving link 143b is connected, a moving screw 143c-1 spirally coupled to the moving body 143c-1, And a driving motor 143c-3 for linearly moving the moving body 143c-1 by rotating the moving screw 143c-2 in the forward and reverse directions.

For example, when the drive motor 143c-3 is rotated in the clockwise direction, the movable screw 143c-2 rotates in the clockwise direction during the regular rotation of the drive motor 143c-3, 143c-1 linearly move to one side. As the movable screw 143c-2 rotates in the counterclockwise direction, the movable screw 143c-2 rotates in the counterclockwise direction during the reverse rotation of the drive motor 143c-3. (143c-1) moves linearly toward the other side.

On the other hand, the end of the moving screw 143c-2 can be supported by the bracket BK so that the movable screw 143c-2 can rotate forward or backward.

As the moving body 143c-1 linearly moves to one side or the other side, the driving link 143b coupled with the moving body 143c-1 moves linearly together with the moving body 143c-1.

On the other hand, a linear movement guide block LMB is provided on a corresponding surface of the moving body 143c-1 facing the base member 110, and the linear movement guide block LMB, And a linear movement guide rail LML coupled to guide the linear movement of the moving body 143c-1.

Therefore, the linear movement of the moving body 143c-1 can be precisely and stably performed by the linear movement guide block LMB and the linear movement guide rail LML.

Hereinafter, the operation of the X-ray imaging apparatus configured as described above will be described.

First, as shown in FIGS. 2, 3, and 6 (a), the second sensor 130 is disposed in parallel to the front of the first sensor 120 to detect a first state Will be described.

1 and the drive bracket 143a by the drive motor 143c-3 and the moving screw 143c-2, as shown in Figs. 2, 3 and 6 (a) As the sensor moves to the left side of the drawing, the link means 141 brings the second sensor 130 into a first state in which it is parallel to the front of the first sensor 120.

In this state, when the X-ray is irradiated through the X-ray irradiating unit, the X-ray passes through the head of the examinee (not shown) and reaches the second sensor 130,

Next, as shown in FIGS. 4, 5 and 6 (b), the second sensor 130 is mounted on the base member 110 (110) so as to be capable of X-ray detection using the first sensor 120 In a second state in which it is positioned parallel to the bottom of the housing.

When the moving body 143c-1 and the driving bracket 143a are moved by the driving motor 143c-3 and the moving screw 143c-2 in the state in which the second sensor 130 is in the first state, The second state of the second sensor 130 is parallel to the bottom of the base member 110 by the link means 141 as the first sensor 130 moves to the right side of the base member 110. [

In this state, when the X-ray is irradiated through the X-ray irradiating unit, the X-ray passes through the head of the examinee (not shown) and reaches the first sensor 120 to perform X-ray imaging.

A slit groove 130h extending in the linear movement direction of the driving link 143b is formed at the other end of the second sensor 130. When the second sensor 130 is positioned in the second state, , And the driving link 143b is inserted into the slit groove 130h.

As described above, when the second sensor 130 is positioned in the second state, as the driving link 143b is inserted into the slit groove 130h and positioned, the driving motor 143c-3 and the moving The operating distance of the moving body 143c-1 and the driving bracket 143a by the screw 143c-2 can be shortened. That is, the working distance of the moving body 143c-1 and the driving bracket 143a can be reduced by the length in which the driving link 143b is inserted into the slit groove 130h.

Meanwhile, in a state in which the second sensor 130 is positioned in the second state, the pivot link 141c is configured to be tilted so that one end position is higher than the other end position.

Therefore, it is possible to prevent the inoperable state of the link means 141 in the process of changing the position of the second sensor 130 from the second state to the first state.

Although the present invention has been described with reference to the preferred embodiments thereof with reference to the accompanying drawings, it will be apparent to those skilled in the art that many other obvious modifications can be made therein without departing from the scope of the invention. Accordingly, the scope of the present invention should be interpreted by the appended claims to cover many such variations.

100: X-ray sensor part 110: base member
110h: rectangular slot 120: first sensor
130: second sensor 130h: slit groove
140: operation unit 141: link means
141a: first bracket 141b: second bracket
141c: rotation link 143: drive means
143a: drive bracket 143b: drive link
143c: driving source 143c-1:
143c-2: Moving screw 143c-3: Driving motor
200: X-ray source part LMB: linear movement guide block
LML: Linear guide rail

Claims (7)

An X-ray imaging apparatus comprising an X-ray source part for irradiating X-rays, and an X-ray sensor part for irradiating the X-ray source part and detecting an X-ray passing through the head of the examinee,
The X-
A base member;
A first sensor fixed to one lower end of the base member;
The first position being parallel to the front of the first sensor to be able to detect X-rays, and the second position being parallel to the bottom of the base member so that X-ray detection using the first sensor is possible A second sensor; And
Link means pivotally connected to both ends of one side of the base member and both ends of a center portion of the second sensor and pivotally connected to the other side of the second sensor so that the other side of the second sensor is connected to the X- And an actuating unit configured to change a position of the second sensor. The X-ray photographing apparatus according to claim 1, The method according to claim 1,
Wherein the link means comprises:
A pair of first brackets provided below both ends of one side of the base member;
A pair of second brackets provided at both ends of one side of the second sensor; And
And a pair of pivotal links rotatably connected at one end to the first bracket and pivotally connected at the other end to the second bracket. 3. The method of claim 2,
And in a state in which the second sensor is positioned in the second state, the pivotal link is tilted so that one end position is higher than the other end position. The method according to claim 1,
The driving means includes:
A drive bracket provided on the other side of the second sensor;
A driving link which is rotatably connected to the driving bracket at one end and is capable of moving linearly toward the X-ray source side; And
And a driving source connected to the other end of the driving link for linearly moving the driving link. 5. The method of claim 4,
Wherein the base member is formed with a rectangular slot through which the driving link is linearly movable,
The drive source
A moving body to which the other end of the driving link is connected;
A moving screw spirally coupled with the moving body; And
And a driving motor for linearly moving the moving body by rotating the moving screw in normal and reverse directions. 5. The method of claim 4,
And the other end of the second sensor is formed with a slit groove extending in the linear movement direction of the driving link,
And the drive link is inserted and positioned in the slit groove when the second sensor is positioned in the second state. 6. The method of claim 5,
A linear movement guide rail is provided on the corresponding surface of the moving body facing the base member and the base member is provided with a linear movement guide rail coupled with the linear movement guide block to guide linear movement of the moving body. Ray imaging apparatus.

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