KR20090030890A - Complex imaging system for dental - Google Patents

Abstract

A complex imaging system for a dental service is provided to give convenience to a patient and a doctor by performing a computer tomography, a panorama photography, and a cephalography without moving a photographer and a subject through one device. A base(110) is installed in the ground. A subject waits for photography in a chair unit(120). A post(130) is installed in the base to be adjacent to the chair unit. A support unit(140) is extended from the upper part of the post to the subject. An expansion and contract unit(150) is rotatably coupled to the bottom part of the support unit. A radiation emitting unit(160) moves according to the extension and contract of the expansion and contract unit. The radiation emitting unit emits the radiation according to the computer tomography, the panorama photography, and cephalography. A radiation detection unit(170) detects the emitted radiation. A controller reads the photographing information detected in the radiation detection unit.

Description

Complex Imaging System for Dental

The present invention relates to a dental composite imaging apparatus, and more particularly, to a single dental equipment capable of simultaneously performing CT and panorama imaging and Sephalo imaging simultaneously. A composite photographing apparatus.

In the dentistry, a panoramic x-ray image of the entire structure of the tooth and the alveolar bone is used by a dental x-ray imaging apparatus during treatment or orthodontics, and the front and rear and rear of the head and jaw portion of the patient. Cephalograph (cephalogram or cephalometric image) taken from the anterior, left and right sides of the patient, a small sensor (intraoral sensor) that receives an x-ray beam in the patient's mouth and a narrow x-ray beam outside the mouth It has been used to investigate and photograph.

Among them, the panoramic image may observe the entire area of the tooth and alveolar bone in plan view, but the tooth may be slightly tilted forward and backward or the malocclusion may not be able to be determined. Although it can compensate for the disadvantages, there is a disadvantage that can not grasp the entire area of the tooth and alveolar bone at once.

Therefore, since the panoramic image and the cephalo image are often utilized simultaneously with the above complementary characteristics, the cephalo is an X-ray irradiation apparatus used for panoramic image capturing by mounting a detector for a cephalo on the panoramic image capturing apparatus. The use of dental x-ray imaging apparatuses that can also take images is increasing.

Meanwhile, the panorama image and the cephalo image as described above use two-dimensional projection data. Therefore, since only two-dimensional projection images are viewed, it is difficult to diagnose dental diseases because of image overlapping phenomenon. Recently, three-dimensional computed tomography apparatuses have been developed and distributed.

Dental computed tomography (CT) is a technique of mathematically reconstructing dozens or hundreds of projection data around an object to be photographed using a computer to obtain tomography images inside the object.

The dental computed tomography apparatus and the panoramic imaging apparatus according to the prior art are used as a dedicated device for each function only.

In other words, if the photographed tomography after taking the tomography or panoramic image taken by the subject, the subject moved to a position where the cephalo image can be obtained or attached to an existing photographing apparatus using a separate device.

Therefore, the photographer and the photographer have an inconvenient problem of moving to each photographing apparatus or attaching a new apparatus for tomography image or panorama photographing and cephalographing.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a dental composite imaging apparatus capable of performing tomography, panorama photography, and cephalographing without shifting the position of the photographer and the subject. .

A dental composite imaging apparatus according to an embodiment of the present invention for achieving the above object, a base seated on the ground, a chair portion provided on the upper side of the base to be photographed by the photographer, and adjacent to the chair portion And a pillar installed in the base, a support portion extending from the upper portion of the pillar to the photographic side, rotatably coupled to the lower portion of the support portion, and provided at an elastic portion provided at an elastic basis, and provided below the one side of the elastic portion. A radiation emitter configured to move according to expansion and contraction of the stretchable unit and to radiate radiation selected according to computed tomography, cephalographing, and panoramic photographing; And selectively emitted from the radiation emitter according to computed tomography, cephalographing, and panoramic imaging. And a detector for detecting radiation and a scan line, respectively, the control unit for reading the recording information detected by the radiation detector.

The support part forms an outer shape of the support part, a support part housing in which a long hole for connecting the extension part is formed on a lower surface thereof, and is provided inside the support part housing so as to rotate the extension part and linearly move the rotation center of the extension part. A sub drive part is provided.

The expansion unit drive unit, the transfer body is coupled to the rotation center of the expansion unit is provided with a rotation motor for rotating the expansion unit, a guide coupled to one side of the transfer body to guide the linear reciprocating movement path of the transfer body and It is coupled to the other side of the transfer body has a transfer unit for linear reciprocating transfer of the transfer body guided to the guide.

The elastic drive unit is a linear reciprocating transfer of the conveying body is fixed during the computed tomography, and rotates only the stretched portion, the radiation emitting portion and the radiation detector provided in the lower portion of the elastic portion to form a circular trajectory .

The stretcher driving unit forms an elliptical trajectory of the radiation emitter and the radiation detector provided at the lower portion of the stretcher while the transport body is linearly reciprocated while the panorama is photographed.

The stretcher driving unit is fixed at the same time the linear reciprocating transfer of the conveying body is fixed at the time of the three-arm shooting and the elastic unit is also fixed to the rotation.

The expansion and contraction portion is rotatably coupled by the support portion, the lower end of the fixed end is provided with the radiation detection unit, the elastic end is provided to be slidably movable relative to the fixed end, the lower end and the radiation end is provided; And a guide bar provided on both inner side surfaces of the fixed end and outer side surfaces of the elastic end to guide the expansion and contraction paths of the elastic end.

The radiation emitting unit includes a radiation source for generating the radiation, and a radiation shutter for selectively emitting the radiation generated from the radiation source by varying the cross-sectional area of the radiation according to computed tomography, cephalographing, and panoramic imaging.

The radiation shutter is a computer tomography slit for releasing the radiation required for computed tomography for computed tomography, a cephalo slit for releasing the radiation necessary for cephalographing for cephalographing, and a panorama for panoramic photography. A panoramic shooting slit is formed to emit radiation, and a shutter body formed of lead (Pb) material and a pair of vertical guides slidably coupled to both sides of the shutter body to slide the shutter body in a vertical direction. Equipped.

The radiation detector includes a slide bar extending from a lower portion of the stretchable part, a lifting body provided to be slidably movable on the slide bar, and a lifting part provided between the slide bar and the lifting body to vertically transfer the lifting body along the slide bar; It has a rectangular detector rotatably provided on one surface of the lifting body facing the radiation emitting portion.

And a bracket provided on one surface of the lifting body, the detector provided to be rotatable on the bracket, and a rotating motor provided on the bracket to rotate the detector.

The detector is positioned horizontally during the computed tomography and obtains an image emitted from the radiation emitter as the stretcher rotates.

      The detector detects radiation by vertically moving to a position to be photographed during the CT scan to obtain an image of a desired portion.

The detector detects as much as an area corresponding to the detection area of the detector while vertically transferring the radiation emitted from the radiation emitter when the cephalograph is taken along with the lifting body transferred along the slide bar. The entire head image of the photographed subject is obtained by vertically moving the corresponding region.

The detector is rotated in a vertical state when the panorama is photographed, and detects radiation emitted from the radiation emitter using only a few rows of the detector as the expansion and contraction unit is rotated.

According to the dental composite imaging apparatus according to the present invention, when performing a computed tomography, panoramic photography, cephalographing do not need a plurality of equipment for each shooting can provide more convenience and economic benefits to doctors and patients It works.

Hereinafter, with reference to the accompanying drawings will be described in detail the dental composite shooting in accordance with the present invention.

In the description of the present invention, the names of the elements defined are defined in consideration of functions in the present invention, and should not be understood as meanings that limit the technical elements of the present invention. May be called other names in the art. In addition, the code added to each component is described for convenience of description, and the contents shown in the drawings in which these codes are described do not limit each component to the range in the drawing. In addition, as long as the functional similarity and identity thereof, even if the modified embodiment is adopted, it can be seen as an equivalent configuration, and even if the embodiment in which some modifications to the configuration on the drawing is employed, it can be seen as an equivalent configuration.

First, with reference to the accompanying drawings, a brief description of the dental composite imaging apparatus according to the present invention.

1 is a perspective view showing the dental composite shooting in accordance with the present invention

As shown, the dental composite imaging apparatus 100 according to the present invention includes a base 110 which is seated on the ground, and a chair part provided on an upper side of the base 110 for a photographic person (not shown) to wait for photographing. 120, a pillar 130 installed on the base 110 adjacent to the chair portion 120, a support portion 140 extending from the upper portion of the pillar 130 to the photographic side, and a lower portion of the support portion 140. It is rotatably coupled, is provided in the stretchable portion 150 is provided in a stretchable direction in the longitudinal direction, the lower portion of one side of the stretchable portion 150, is moved along the stretch of the stretchable portion 150, computed tomography, three A radiation emitting unit 160 for emitting radiation selected according to arm shooting or panoramic shooting; and a radiation emitting unit 160 provided on the other side of the stretchable unit 150 in a direction opposite to the radiation emitting unit 160; Selective emission for tomography, cephalographing, and panorama shooting It includes a radiation detector 170 for detecting the radiation, respectively, and a control unit (not shown) for reading the recording information detected by the respective constituent parts and the operation, the radiation detector 170.

The base 110, the chair portion 120 and the support portion 140 is to be fixed at a constant interval to be formed in a separate plate shape. However, if necessary, the chair unit 120 and the supporter 140 may be installed on the floor of the building. In addition, the chair unit 120 and the support unit 140 are separated from each other, the chair unit 120 may be installed on the floor of the building and the support unit 140 may be installed on the wall surface of the building, respectively.

The chair unit 120 is for seating the subject to perform computer tomography, cephalographing, panorama shooting, the chair unit 120 according to the physical condition of the chair 122 and the subject seated by the subject Lifting device 124 for adjusting the height of the) is provided. The elevating device 124 may be provided as a motor and an elevating device capable of electrical control, and the elevating device 124 may be provided to be controlled by a controller (not shown).

On the other hand, the upper back of the chair unit 120 may be provided with a support (not shown) for supporting the back of the head of the photographing person to perform the shooting. In addition, the support portion may be installed on the back of the chair 122, but may be provided to be fixed to the head of the subject to be rotated with respect to the support portion 140 in the lower portion of the rotation center of the support portion 140 to be described later. The support portion may be changed by various embodiments, and thus detailed description thereof will be omitted.

The pillar 130 is fixed to one side of the base to support the support 140, and supports the support 140 to correspond to the height of the head of the photographed person seated on the chair 120. In addition, the pillar 130 may be provided with a separate lifting device (not shown) for adjusting the height of the support portion 140 supported on the top of the pillar, the radiation provided in the stretchable portion 150 by the lifting device The emitter 160 and the radiation detector 170 may be positioned at a height corresponding to the height of the head of the photographed person.

One end of the support part 140 is supported on the upper end of the pillar 130 to support the stretchable part 150 and to rotate the stretchable part 150 in a circular shape or in an elliptical shape.

Hereinafter, the supporting unit 140 will be described in detail with reference to FIG. 2. 2 is a perspective view showing a support 140 of the dental composite imaging apparatus 100 according to the present invention.

As shown in FIG. 2, the support part 140 of the dental composite imaging apparatus 100 according to the present invention forms an outer shape, and a support part housing in which a long hole 141 is formed at the bottom thereof to connect the stretchable part 150. 140a and the expansion part drive part 142 provided in the inside of the support part housing 140a, and rotates and linearly moves the expansion part 150. As shown in FIG.

Here, the expansion unit driver 142 rotates the expansion unit 150 and at the same time moves the rotation center of the expansion unit 150 in a linear direction and the radiation emitting unit 160 provided at both ends of the expansion unit 150 and the The shape of the trajectory formed by the radiation detector 170 is formed to be circular or elliptical.

The expansion unit driving unit 142 is coupled to the rotation center of the expansion unit 150 is coupled to the transfer body 143 for rotating the expansion unit 150, and the transfer path of the transfer body is coupled to one side of the transfer body 143 It is provided with a guide 146 for guiding the transfer portion 147 is coupled to the other side of the transfer body 143, the transfer body 143 is guided to the guide 146. Here, the transfer body 143 has a rotating motor 144 for rotating the expansion and contraction unit 150, a belt and a pulley for transmitting the power of the rotation motor 144 to the rotating shaft (not shown) of the expansion and contraction unit 150 The power transmission device 145 is provided, and the transfer part 147 is a horizontal transfer drive motor for applying rotational force to the horizontal ball screw 148 and the horizontal ball screw 148 to which the transfer body 143 is transportably coupled. 149 is provided.

Accordingly, as the expansion and contraction unit 150 is rotated by the operation of the rotary motor 144, the radiation emitting unit 160 and the radiation detection unit 170 form a circular trajectory, and the transfer body (14) is operated by the operation of the transfer unit 147. As the 143 is linearly reciprocated, the radiation emitter 160 and the radiation detector 170 rotate while forming an elliptical trajectory.

The expansion and contraction unit 150 is connected to the expansion unit driving unit 142 of the support and rotated, and at the same time to reduce the distance between the radiation emitting unit 160 and the radiation detection unit 170 during computed tomography and panoramic imaging, the cephalo At the time of imaging, the distance between the radiation emitter 160 and the radiation detector 170 is enlarged.

Hereinafter, the expansion and contraction unit 150 will be described in detail with reference to FIG. 3. Figure 3 is a perspective view showing a stretchable portion of the dental composite imaging apparatus according to the present invention.

As shown in FIG. 3, the expansion and contraction unit 150 of the dental composite imaging apparatus 100 according to the present invention is coupled to the center of rotation of the expansion unit driving unit 142 of the support unit 140, and below the radiation detection unit ( 170 is provided with a fixed end 152, a fixed end 152 is provided so as to be movable slide, the lower end is provided with a stretchable end 154 is provided with a radiation emitter 160, fixed end Guide bars 156 are provided on the inner side surfaces of the 152 and the outer side surfaces of the elastic end 154 to guide the expansion and contraction paths of the elastic end 154.

Here, the fixed end 152 has a predetermined length and is formed in a housing shape having a space formed therein, and the upper center portion penetrates the long hole 141 formed in the support portion 140 to drive the stretchable portion of the support portion 140. A rotating shaft (not shown) coupled to the 142 is provided.

In addition, the guide bars 156 provided on both inner surfaces of the fixed end 152 are coupled to each other so that a pair of LM guides face each other. A rail to which each LM guide is coupled is formed on both inner surfaces of the fixed end 152. In addition, a rail to which each LM guide is coupled is formed on both outer sides of the stretchable end 154. Therefore, the distance change of the stretchable end 154 that is stretched relative to the fixed end 152 may be increased by about three times the length of the fixed end 152. However, the length of the fixed end 152 and the elastic end 154 is not limited to this, and the distance between the fixed end 152 and the elastic end 154 may be adjusted as necessary.

The radiation emitting unit 160 is for selectively emitting radiation required for computed tomography, cephalographing, and panoramic imaging when performing computed tomography, cephalographing, and panoramic imaging.

Hereinafter, the radiation emitting unit 160 will be described in detail with reference to FIG. 4. 4 is a perspective view showing a radiation generating unit in the dental composite imaging apparatus according to the present invention.

As shown in FIG. 4, the radiation emitter 160 of the dental composite imaging apparatus 100 according to the present invention is configured to generate a radiation source 161 and a radiation generated from the radiation source 161. A radiation shutter 162 is provided to selectively change the cross-sectional area of the radiation according to tomography, cephalographing, and panoramic imaging.

Here, the radiation source 161 includes a generator, a high voltage system, a cooling system, and the like. Since the components constituting the radiation source 161 are well known technologies, detailed descriptions thereof will be omitted.

In addition, the radiation shutter 162 is provided in the radiation emitter (not shown) of the radiation source 161 to change the cross-sectional area of the emitted radiation, and the radiation shutter 162 is formed of lead (Pb) material to prevent radiation leakage. A shutter body 163 in which a plurality of radiation emitting slits are formed, and a pair of vertical guides 167 that are slidably coupled to both sides of the shutter body 163 to slide the shutter body 163 in a vertical direction, are provided. Equipped.

Here, the shutter body 163 includes a computer tomography slit 164 that emits radiation required for computer tomography when computed tomography, and a slit 165 for cephaloography that emits radiation required for cephalographing when shooting cephalographs. And a panorama photographing slit 166 for emitting radiation necessary for panorama photographing during panorama photographing.

The slits 164, 165, and 166 may be modified and formed as needed. In general, the slit 164 for computed tomography may be formed with a long hole in the horizontal direction, and the slit 165 for cephalo shooting is vertical. It is formed in a rectangular shape having a length in the direction, the panoramic shooting slit 166 is formed in a vertical long hole.

The radiation detector 170 is for selectively detecting radiation selectively emitted by the radiation emitter 160 during computed tomography, cephalographing, and panoramic photography according to computed tomography, cephalographing, and panoramic photography.

Hereinafter, the radiation detector 170 will be described in detail with reference to FIG. 5. 5 is a perspective view showing a detection unit in the dental composite imaging apparatus according to the present invention.

As shown in FIG. 5, the radiation detection unit 170 of the dental composite imaging apparatus 100 according to the present invention includes a slide bar 171 extending from the lower end of the fixed end 152 of the stretchable unit 150, and the slide. A lifting part 172 provided to be slidably movable in the bar 171, and a lifting part provided between the slide bar 171 and the lifting body 172 to vertically transfer the lifting body 172 along the slide bar 171. 173 and a detector 176 rotatably provided on one surface (one surface of the lifting body 172 opposite to the radiation emitting portion 160).

Here, the lifting unit 173 is for moving the lifting body 172 which is slidably coupled to the slide bar 171 along the slide bar 171, the vertical ball screw is provided in parallel with the slide bar 171. 174 and a vertical feed drive motor 175 for transmitting power to the vertical ball screw 174.

The detector 176 is rotatably provided on the bracket 177 provided on one surface of the lifting body 172, and the rotating motor 178 for rotating the detector 176 is provided on the opposite surface of the bracket 177. More prepared. Such a detector 176 is provided in a rectangular rectangular shape, and is maintained in a horizontal state during computed tomography and cephalographing, and rotated in a vertical state during panorama shooting.

In this case, the detector 176 detects radiation using phenomena such as ionization, emission, chemical change, heat generation, formation of drops, and photosensitivity as the radiation is incident, thereby digitizing the amount of radiation detected. Using an array X-ray detector. Since the array X-ray sensing element of the radiation detector is a known technique, detailed description thereof will be omitted.

Accordingly, the operation of the dental composite photographing apparatus according to the present invention will be described in detail through the embodiment. Each element mentioned below should be understood with reference to the above description and drawings.

Here, the dental composite imaging apparatus according to the present invention is provided to perform computer tomography, cephalographing, and panorama photography by a simple operation. As an example, each shooting method will be described in detail.

First, a case of performing computed tomography using a dental composite imaging apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

6a to 6e is an operating state diagram showing a state when the computed tomography of the dental composite imaging apparatus according to the present invention.

6A illustrates an installation state of the dental composite imaging apparatus when performing a computed tomography. FIG. 6B illustrates an installation state of a radiation generating unit of the dental composite imaging apparatus when performing a computed tomography. FIG. 6 illustrates the installation state of the radiation detector of the dental composite imaging apparatus when performing computed tomography, and FIGS. 6D and 6E illustrate the correlation between the radiation generator and the radiation detector when performing computed tomography.

As shown in FIG. 6A, in the case of computed tomography, the expansion and contraction unit 150 of the dental composite imaging apparatus 100 is reduced so that the radiation emitting unit 160 and the radiation detector 170 have a distance for computed tomography. It is reduced to. At this time, the head of the photographic operator operates the chair 120 to be positioned at the center of the radiation emitter 160 and the radiation detector 170.

On the other hand, the radiation shutter 162 of the radiation emitter 160 is positioned so that the shutter body 163 is moved along the vertical guide 167 to emit radiation through the computed tomography slit 164 for computed tomography. (See Figure 6b)

In addition, the detector 176 of the radiation detector 170 is positioned in a horizontal state, and the lifting body 172 to which the detector 176 is coupled is a vertical ball screw 174 and a vertical feed driving motor 175 of the lifting unit 173. By vertically moving to a position to be photographed so that a desired portion enters the radiation region (see FIGS. 6C to 6D).

Thereafter, the expansion and contraction unit 150 rotatably supported by the support unit 140 is rotated by the expansion unit driver 142 about the head of the photographed person. At this time, the conveying body 143 of the expansion unit driving unit 142 is fixed in the horizontal direction, and the expansion and contraction unit 150 is rotated by the rotation motor 144 to form a circular trajectory is rotated 360 ° (Fig. See 6e)

Accordingly, as the expansion and contraction unit 150 rotates, radiation is emitted from the computed tomography slit 164 of the radiation shutter 162 provided in the radiation emitting unit 160, and the emitted radiation passes through the head of the subject. It is detected by the detector of the detector 170. Meanwhile, the data detected by the detector of the radiation detector 170 is read by a controller (not shown) and output through a separate display device (not shown).

Hereinafter, with reference to the accompanying drawings a case of taking a cephalograph using the dental composite imaging apparatus according to the present invention will be described in detail.

7a to 7d is an operating state diagram showing a state when photographing cephalograph of the dental composite imaging apparatus according to the present invention.

Here, Figure 7a shows the installation state of the dental composite image pickup device when the three-arm shooting, Figure 7b shows the installation state of the radiation generating unit of the dental composite image pickup device when the three-arm shooting, Fig. 7c Figure 3 shows the operating state of the radiation detection unit of the dental composite imaging apparatus when taking a cephalograph, Figure 7d shows the correlation between the radiation generating unit and the radiation detection unit when taking a cephalograph.

As shown in FIG. 7A, when the cephalographing is extended, the stretchable portion 150 of the dental composite imaging apparatus 100 is extended, and the radiation emitter 160 and the radiation detector 170 spaced apart for the cephalographing. Here, the separation distance may be formed by the distance between the cephalographing slit 165 of the radiation emitting unit 160 and the surface of the detector 176 of the radiation detecting unit 170 is 1649 mm. At this time, the head of the photographed person is to be located close to the detector 176 of the radiation detection unit 170 by operating the chair unit 120.

On the other hand, the radiation shutter 162 of the radiation emitting unit 160 is positioned so that the shutter body 163 is moved along the vertical guide 167 to emit radiation through the cephalographing slit 165 for sephalographing. (See Figure 7b)

In addition, the detector 176 of the radiation detector 170 is positioned in a horizontal state, and the lifting body 172 to which the detector 176 is coupled is a vertical ball screw 174 and a vertical feed driving motor 175 of the lifting unit 173. The vertical transfer is carried out by) to move in synchronization with the three-armed shooting slit 165 of the discharge unit 160 from the bottom of the shooting area to the upper side (or from the upper side to the lower side) to shoot. (See Figure 7c)

Accordingly, the radiation is emitted from the cephalographing slit 165 of the radiation shutter 162 provided in the radiation emitter 160, and the emitted radiation passes through the head of the photographed person and is emitted to the radiation detector 170. At the same time, the lifting body 172 of the radiation detection unit 170 is moved vertically upward (or downward) by the vertical ball screw 174 and the vertical feed drive motor 175 of the lifting unit 173.

The detector 176 detects as much as the area corresponding to the detection area of the detector 176, vertically moves as much as the area corresponding to the detection area of the detector 176, and repeatedly performs the detection. Detect radiation.

Meanwhile, data detected by the detector 176 of the radiation detector 170 is read by a controller (not shown) and output through a separate display device (not shown).

Hereinafter, a case in which panoramic photographing is performed using the dental composite photographing apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

8a to 8e is an operating state diagram showing a state during panoramic shooting of the dental composite imaging apparatus according to the present invention.

Here, FIG. 8A shows the installation state of the dental composite photographing apparatus when panoramic photography is taken. FIG. 8B shows the installation state of the radiation generating unit of the dental composite photographing apparatus when panoramic photography is taken. FIG. 8C is a panorama. When photographing, the operation state of the radiation detector of the dental composite photographing apparatus is illustrated, and FIGS. 8D and 8E illustrate the correlation between the radiation generating unit and the radiation detection unit when the panorama photographing is performed.

As shown in FIG. 8A, in the case of panoramic photographing, the expansion and contraction unit 150 of the dental composite imaging apparatus 100 is reduced so that the radiation emitting unit 160 and the radiation detection unit 170 are reduced to a distance for panoramic photographing. Stay intact. At this time, the head of the photographic operator operates the chair 120 to position the detector 176 of the radiation detector 170.

On the other hand, the radiation shutter 162 of the radiation emitting unit 160 is positioned so that the shutter body 163 is moved along the vertical guide 167 and the radiation is emitted through the panoramic photographing slit 166 for panoramic photographing. 8b)

In addition, the detector 176 of the radiation detection unit 170 is rotated by the rotating motor 178 and is positioned in a vertical direction, and the lifting body 172 to which the detector 176 is coupled is the lifting unit 173. While being vertically transferred by the vertical ball screw 174 and the vertical transfer drive motor 175, the lower end of the detector 176 and the lower end of the radiation emitted from the radiation emitting unit 160 are positioned to match each other (FIGS. 8C to 8D). Reference)

Thereafter, the expansion and contraction unit 150 rotatably supported by the support unit 140 is rotated by the expansion unit driver 142 about the head of the photographed person.

At this time, the conveying body 143 of the stretchable driving unit 142 is a horizontal motor provided in the conveying body 143 while being horizontally reciprocated along the guide 146 by the horizontal ball screw 148 and the horizontal conveying drive motor 149. 144, the expansion and contraction portion 150 is rotated while forming an elliptic trajectory. The ellipse formed at this time is formed along the cross-sectional shape of the head of the subject and is formed as the detector 176 is rotated in an adjacent state along the side of the head of the subject (see FIG. 8E).

Accordingly, as the expansion and contraction unit 150 is rotated, radiation is emitted from the slit 166 for panoramic imaging of the radiation shutter 162 provided in the radiation emitting unit 160, and the emitted radiation passes through the head of the subject to detect the radiation detector ( 170 is detected by the detector. Meanwhile, data detected by the detector 176 of the radiation detector 170 is read by a controller (not shown) and output through a separate display device (not shown).

Meanwhile, during panorama shooting, data may be acquired by selectively using only a part of the detector 176. This is because, in the case of a typical two-dimensional (rectangular) detector, the image acquisition frame rate is typically formed at less than 30 frames per second. Basically, in order to obtain a panorama image, one has to shoot using a linear detector.

Therefore, a partial image of the rectangular detector 176 (preferably a vertical linear detecting region 176a in the vertical direction) may be selectively used to process data detected in the selected detecting region 176a at high speed to acquire a panoramic image. can do. In addition, a separate high speed data processing circuit (not shown) may be additionally installed for high speed processing of data detected in the selected detecting region 176a.

On the other hand, the computed tomography, cephalographing, panorama shooting as described above should be taken in accordance with the position of the radiation detection unit 170, respectively, the photographing position of the subject, which is provided in the chair unit 120 ( 124).

Although described in detail with respect to the preferred embodiment of the present invention as described above, those of ordinary skill in the art, without departing from the spirit and scope of the invention defined in the appended claims Various modifications may be made to the invention. Therefore, changes in the future embodiments of the present invention will not depart from the technology of the present invention.

For example, a component having another additional function may be added or replaced with another component in the dental composite imaging apparatus according to the present invention. However, all other modified embodiments include the essential elements of the present invention should be considered to be included in the technical scope of the present invention.

1 is a perspective view showing a dental composite photographing disorder according to the present invention.

Figure 2 is a perspective view showing the support of the dental composite imaging apparatus according to the present invention.

Figure 3 is a perspective view showing a stretchable portion of the dental composite imaging apparatus according to the present invention.

4 is a perspective view showing a radiation generating unit in the dental composite imaging apparatus according to the present invention.

5 is a perspective view showing a detection unit in the dental composite imaging apparatus according to the present invention.

 6a to 6e is an operating state diagram showing a state when the computed tomography of the dental composite imaging apparatus according to the present invention.

7a to 7d is an operating state diagram showing a state when photographing cephalograph of the dental composite imaging apparatus according to the present invention.

8a to 8e is an operating state diagram showing a state during panoramic shooting of the dental composite imaging apparatus according to the present invention.

** Description of the symbols for the main parts of the drawings **

100: dental composite photographing apparatus

110: base

120: chair

130: pillar

140: support portion

150: expansion and contraction

160: radiation emitting part

170: radiation detection unit

Claims (15)

Base seated on the ground, A chair unit provided on an upper side of the base and waiting for a photographed person to photograph; A pillar installed in the base adjacent to the chair part; A support portion extending from an upper portion of the pillar to a photographic side; An elastic part rotatably coupled to the lower part of the support part, the elastic part being provided to be elastic; A radiation emitter provided below one side of the stretchable part and moved according to the stretched and stretched part of the stretchable part and emitting radiation selected according to computed tomography, cephalographing, and panoramic photographing; A radiation detector provided on the other side of the expansion and contraction unit in a direction opposite to the radiation emitter and detecting the radiation selectively emitted from the radiation emitter according to computed tomography, cephalograph, and panoramic photograph; And a control unit for reading the photographing information detected by the radiation detection unit. The method of claim 1, wherein the support portion A support part housing forming an outer shape of the support part and having a long hole formed at a lower surface thereof to connect the stretchable part to And a stretcher driving unit provided inside the support housing to rotate the stretchable unit and linearly move the rotation center of the stretchable unit. The method of claim 2, wherein the expansion unit driving unit, A transfer body having a rotating motor coupled to the rotation center of the expansion and contraction unit to rotate the expansion and contraction unit; A guide coupled to one side of the transfer body to guide a linear reciprocating movement path of the transfer body; And a transfer unit coupled to the other side of the transfer body and configured to linearly reciprocate the transfer body guided by the guide. The method of claim 3, wherein The stretcher driving unit may fix the linear reciprocation of the transfer body during the CT scan and rotate only the stretcher to form circular trajectories of the radiation emitter and the radiation detector provided under the stretcher. Dental composite imaging device, characterized in that. The method of claim 3, wherein The stretcher driving unit is characterized in that the dental body is formed in the elliptical trajectory of the radiation emitter and the radiation detector provided in the lower portion of the stretcher while the conveying body is linearly reciprocated and transported during the panorama photographing. Composite shooting device. The method of claim 3, wherein The stretchable driving unit is a dental composite imaging device, characterized in that the linear reciprocating transfer of the transfer body is fixed at the same time when the three-arm shooting. The method of claim 1, wherein the expansion portion A fixed end rotatably coupled to the support unit, the fixed end of which the radiation detection unit is provided; A stretchable end provided to be slidably movable with respect to the fixed end, the stretchable end having the radiation emitting part provided below; And a guide bar provided on the inner side surfaces of the fixed end and the outer side surfaces of the expansion end to guide the expansion path of the expansion end. The method of claim 1, wherein the radiation emitting portion A radiation source for generating the reflected line, And a radiation shutter for selectively radiating the radiation generated from the radiation source according to computed tomography, cephalographing, and panoramic imaging. The method of claim 8, wherein the radiation shutter is A computed tomography slit that emits the radiation necessary for computed tomography in computed tomography, a cephalograph slit that emits the radiation needed for cephalographing in cephalographs, and a radiation for panorama photography Slit for panorama shooting is formed, the shutter body is formed of lead (Pb) material, And a pair of vertical guides slidably coupled to both sides of the shutter body to slide the shutter body vertically. The method of claim 1, wherein the radiation detection unit A slide bar extending from the lower part of the elastic part, A lifting body provided to be slidably movable in the slide bar; An elevating part provided between the slide bar and the elevating body to vertically convey the elevating body along the slide bar; And a rectangular detector rotatably provided on one surface of the elevating body opposite to the radiation emitting unit. The method of claim 10, A bracket provided on one surface of the lifting body, The detector rotatably provided at the bracket; And a rotational motor provided on the bracket to rotate the detector. The method of claim 10, The detector is positioned in a horizontal state during the computed tomography, and the dental composite imaging apparatus, characterized in that for detecting the radiation emitted from the radiation emitter as the elastic portion is rotated. The method of claim 10, The detector detects as much as an area corresponding to the detection area of the detector while vertically transferring the radiation emitted from the radiation emitter when the cephalograph is taken along with the lifting body transferred along the slide bar. The dental composite imaging apparatus, characterized in that for detecting the radiation by moving vertically by the corresponding area. The method of claim 10, The detector is rotated in a vertical state when the panorama is photographed, the composite dental imaging device, characterized in that for detecting the radiation emitted from the radiation emitter as the expansion and contraction is rotated. The method of claim 10, The detector is rotated in a vertical state when the panorama is photographed, selectively uses a vertical linear detection area of the detector, and acquires a panorama image by processing data detected in the selected detection area. Dental composite photographing apparatus.

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