KR20070107574A - Complex imaging system for dental - Google Patents

Abstract

A complex imaging system for dentistry is provided to offer convenience by performing a CT, a panorama imaging and an encephalography without an additional detector, a head fixing part and an additional mechanism part by separating a radiation generation part from the detector. A complex imaging system for dentistry includes a frame(210), a support arm(214), a rotating device(230), a rotating arm(220), a radiation generating part(222), and a separating arm(310). The frame forms an external shape of a body. The support arm is elevated by connecting with the frame. The rotating device rotates while being supported by the support arm. The rotating arm is supported by the rotating device and includes a radiation detector(224) in an end of the rotating arm. The radiation generation part is prepared in the other end of the rotating arm. The separating arm changes a distance between the radiation generation part and the radiation detector according to imaging condition.

Description

Dental Imaging System {Complex Imaging System for Dental}

1 is a side view showing a dental panoramic and cephalographing apparatus according to the prior art.

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

Figure 2b is a plan view showing a composite dental imaging apparatus according to the present invention.

Figure 3 is a side view showing a first embodiment of the separation arm in the dental composite imaging apparatus according to the present invention.

Figure 4 is a side view showing a second embodiment of the separation arm in the dental composite imaging apparatus according to the present invention.

5 is a plan view showing a third embodiment of the separation arm in the dental composite imaging apparatus according to the present invention.

Figure 6 is a plan view showing a fourth embodiment of the separation arm in the dental composite imaging apparatus according to the present invention.

FIG. 7 is an operation diagram illustrating an operation structure of the spaced apart arm according to the fourth embodiment of the dental composite photographing apparatus shown in FIG. 6.

The present invention relates to a dental composite imaging device, and more specifically, to a cephalo while performing conventional computed tomography (CT) and panorama (Panorama) recording without the addition of a detector or a tofu fixing part for a cephalo. (Cephalography) relates to a device capable of performing imaging.

Dental diagnostic apparatus using X-rays includes an intraoral x-ray camera that examines the condition of the oral cavity, a panoramic device that provides an image of the oral cavity, and the oral cavity and the entire head. There are a cephalograph showing a sectional image and a dental tomography device showing the entire mouth and head in three dimensions.

The intraoral x-ray camera checks the state of a part of the tooth structure in high resolution, and the panoramic device rotates along the contour of the facial part to make an image of the intraoral structure developed to check the overall tooth state. A cephalographing device is a system that photographs the entire head from the front or side to correct the jawbone or determine the condition of the jaw joint. All of these devices use two-dimensional projection data.

Since the above apparatus only has a simple two-dimensional projection image, it is difficult to diagnose because of image overlapping phenomenon, and now a three-dimensional cone beam computer tomography apparatus has been developed and spread.

Computed tomography is a technique of mathematically reconstructing tens to hundreds of projection data around an object to be photographed using a computer to obtain tomographic images inside the object. Such a computed tomography apparatus is essentially provided with a radiation generating unit for generating radiation, and a radiation detector for detecting radiation generated by the radiation generating unit to project the head of the patient.

       Figure 1 shows a dental x-ray imaging apparatus according to the prior art.

In the case of the panoramic or computed tomography system, the main frame 110 and the support arm 114 connected to the frame support the rotating device 130, and the radiation generating unit 122 and the radiation attached to the rotating arm 120. In the state where the detector 124 is facing, the head of the patient is fixed to the panoramic head fixation unit 126 and the rotatable device 130 is rotated to photograph the mouth or face of the patient.

Unlike the conventional panoramic system, the cephalographer for photographing the entire head in front or side has a patient adjacent to the detector 140 while the radiation generator 122 and the cephalo detector 140 are not rotated and fixed. The radiation generator 122 photographs the head at a certain distance from the patient.

In this case, the radiation generator 122 should be placed at a predetermined distance or more from the detector 140 and the head fixing part 142 of the patient, because the cephalo image should be taken of the entire head. The distance between the radiation generating unit 122 and the detector 124 of the device should be maintained at least twice as far as possible to minimize the distortion of the captured image.

The panorama shooting equipment according to the related art may be installed only as a single device for panorama, but the cephalographing device is not installed as a single device having only a cephalographing function. The cephalo detector 140 and the cephalo tofu fixing part 142 are additionally installed to take cephalographs using the radiation generator 122 used in the panorama.

At this time, since the existing panoramic detector 124 prevents the radiation from the radiation generator 122 to go straight to the cephalo detector 140, remove the panoramic detector 124 or the radiation generator 122 and the rotating arm ( Twist 120 to prevent the radiation going straight to the cephalo detector 140.

Therefore, in order to take a cephalograph in a conventional panorama or tomography device, the cephalo support arm 144 and the cephalo detector 140, which can maintain a certain distance or more, the cephalo head fixation unit 142, to go straight There is a problem in that a mechanism for preventing radiation from being blocked in the panoramic detector 124 has to be additionally installed.

In addition, since the detector which occupies the largest price of the photographing apparatus needs to use two of the panorama detector 124 and the cephalo detector 140, there is a problem of increasing the manufacturing cost of the photographing apparatus.

The present invention has been made to solve the above problems, by using a simple mechanical device to separate the radiation generating unit from the detector, an additional cephalo detector for cephalograph and tofu head fixing for cephalograph, additional It is an object of the present invention to provide a dental composite imaging apparatus capable of performing panorama photography, computed tomography and cephalographing without a mechanical part.

Dental composite imaging apparatus according to the present invention for achieving the above object, a support arm which is formed to the outer shape of the main body is coupled to the frame and the lift, rotatably supported by the support arm, rotatably provided; A rotating arm supported by the rotating device and provided with a radiation detector at one end thereof, and a radiation generator at the other end thereof, and a separation arm for changing a distance between the radiation generator and the radiation detector according to imaging conditions.

The radiation detector and the radiation generating unit are always provided to face each other according to a use condition, and a head fixing unit for fixing the head of the patient is provided between the radiation generating unit and the radiation detector.

The photographing condition may be any one selected from tomography, panorama photographing, or cephalographing. The spaced apart arm may have a reduced distance between the radiation generating unit and the radiation detector during the tomography and ?? In the cephalographer, the distance between the radiation generator and the radiation detector is maintained.

The spaced arm is provided with a radiation generating unit at the other end, one end of the spaced arm is coupled to be inserted or withdrawn as the slide moves into the rotary arm, the spaced arm is moved by a cylinder provided on the rotary arm.

A line pulley is provided inside the rotary arm to wind a cable for supplying power to the radiation generator installed in the spaced arm, and the line pulley is spaced apart from the radiation gun generator with respect to the radiation detector. It is provided to secure the length of the cable and to wind the cable when the distance from the radiation gun generator to the radiation detector is reduced.

The spacing arm includes a first slider inserted into the rotary arm and a second slider inserted into the first slider and provided with the radiation generating part at an end thereof. The first and second sliders are disposed inside the first and second sliders. A cylinder for inserting or withdrawing two sliders is further provided.

A line pulley is provided inside the rotary arm to wind a cable for supplying power to the radiation generator installed in the second slider, and the line pulley is spaced apart from the radiation gun generator with respect to the radiation detector. It is provided to secure the length of the cable and to wind the cable when the distance from the radiation gun generator to the radiation detector is reduced.

The spacing arm has a first hinge rotatably coupled to the rotary arm by a first hinge, and a second hinge rotatably coupled to the first hinge by a second hinge and having a radiation generator at the other end thereof. It is provided.

The first and second hinge parts are further provided with a torque motor for rotating the first and second hinges.

The spacing arm is rotatably coupled to the rotating arm by a single hinge, and has a single hinge provided with a radiation generating portion at the other end, and provided with the single hinge so that the radiation detector and the radiation generating portion always face each other. The direction return mechanism part is provided.

The single hinge is further provided with a torque motor for rotating the single hinge.

The directional return mechanism portion is fixed to the rotary arm and is limited to the rotation of the separation arm, the automatic directional return pulley, one end is wound in one direction on one end of the radiation generating portion, the other end is the other end of the automatic directional return pulley The automatic direction return cable is wound in a direction, and the direction in which the radiation generating unit and the radiation detector face each other is maintained while the automatic direction return cable is wound around the automatic direction return pulley according to the rotation of the separation arm.

Hereinafter, a dental composite photographing apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, the terms defined are defined in consideration of functions in the present invention, and should not be understood as a meaning of limiting the technical components of the present invention.

Figure 2a is a side view showing a composite dental imaging apparatus according to the present invention, Figure 2b is a plan view showing a dental composite imaging apparatus according to the present invention.

As shown in FIGS. 2A to 2B, the dental composite imaging apparatus 200 according to the present invention includes a frame 210 that forms an outer surface of the main body and a support arm 214 that is lifted by being coupled to the frame 210. And a rotating device 230 supported by the support arm 214 and rotatably provided, the rotating arm 220 supported by the rotating device 230 and provided with a radiation detector 224 at one end thereof, and the other end thereof. The radiation generating unit 222 is provided in the spaced apart arm 310 for changing the distance between the radiation generating unit 222 and the radiation detector 224 according to the imaging conditions (for example, tomography, panoramic or cephalographing). ).

Meanwhile, the radiation detector 224 provided on the rotating arm 220 and the radiation generator 222 provided on the spaced arm 310 face each other, and the radiation generator 222 and the radiation detector 224 face each other. Between the tofu fixing part 226 for fixing the head of the patient is provided.

Here, the spaced apart arm 310 maintains a reduced distance between the radiation generator 222 and the radiation detector 224 during tomography and panorama imaging, and the radiation generator 222 and during cephalographing. The distance between the radiation detectors 224 is maintained to be far.

The separation arm 210 may be provided to be stretchable by a manual operation of the photographer, or may be automatically operated by a separate operation device.

Meanwhile, the radiation generator 222 may include an X-ray source (or tube) that generates X-rays, that is, an X-ray generator, and a high voltage supply device for generating X-rays. Voltage System), Cooling System and the like. Since the components of the radiation generator 222 are well known technologies, detailed descriptions thereof will be omitted.

In addition, the radiation detector 224 detects radiation by using phenomena such as ionization, emission, chemical change, heat generation, formation of drops, and photosensitivity as radiation is incident. It is possible to use, but preferably an array X-ray sensing element capable of digitizing the amount of radiation to be detected. Since the array X-ray sensing element of the radiation detector is a known technique, detailed description thereof will be omitted.

Accordingly, the structure of the separation arm of the dental composite imaging apparatus according to an embodiment of the present invention will be described in detail with reference to the embodiment. Each element mentioned below should be understood with reference to the above description and drawings.

Figure 3 is a side view showing a first embodiment of the separation arm in the dental composite imaging apparatus according to the present invention.

In the first embodiment of the spaced apart arm 310 in the dental composite imaging apparatus 100 according to the present invention, the spaced apart arm 310 provided with the radiation generator 222 is provided with a radiation detector 224 according to the shooting conditions It is to be inserted into the rotary arm 220 to adjust the distance between the radiation generating unit 222 and the radioactive detector 224.

As shown, the radiation detector 224 is provided at one end of the rotary arm 220, the radiation generator 222 is provided at the other end of the separation arm 310, and the separation arm 310 is the rotary arm 220. It is provided to be inserted or withdrawn while being moved inward or outward.

In addition, a cylinder 330 is provided inside the rotary arm 220 and the spaced arm 310 to slide the spaced arm 310 with respect to the rotary arm 220. A line pulley 320 is provided on which a cable 322 for supplying power of the radiation generating unit 222 installed in the spaced apart arm 310 moved by the cable 322 is wound.

Cylinder 310 is operated in a hydraulic or pneumatic manner and can be manually or automatically controlled according to the user's operation. The line pulley 320 secures the length of the cable 322 by a distance that is spaced apart when the distance of the radiation gun generator 222 with respect to the radiation detector 224, the radiation gun generator (224) with respect to the radiation detector 224 When the distance of 222 is reduced, it is provided to wind the cable 322 by the reduced distance. That is, irrespective of the distance between the radiation detector 224 and the radiation generator 222, the discharge force of the cable 322 is always kept constant to prevent the cable 322 from sagging or stringing.

Figure 4 is a side view showing a second embodiment of the separation arm in the dental composite imaging apparatus according to the present invention.

The second embodiment of the separation arm in the dental composite imaging apparatus 200 according to the present invention, by using the multi-stage slider 510, 512 is inserted into the telescope of the multi-stage space, the multi-stage slider (510, 512) is The number of sliders 510 and 512 may be determined according to the distance between the radiation generating unit 224 and the radiation detector 222. In the drawing, two sliders 510 and 512 are illustrated, but the number of sliders 510 and 512 is not limited, but may be formed by two or more sliders.

In addition, a cylinder (not shown) for moving the multi-stage sliders 510 and 512 is provided inside the rotary arm 220 and the multi-stage sliders 510 and 512, and the cylinder may be operated manually or automatically according to the operator's operation. Since the line pulley 320 and the cable 322 are the same as in the first embodiment, detailed description thereof will be omitted.

5 is a plan view showing a third embodiment of the separation arm in the dental composite imaging apparatus according to the present invention.

In the third embodiment of the separation arm in the dental composite imaging apparatus 200 according to the present invention, the distance between the radiation generating unit 222 and the radiation detector 224 is adjusted using a plurality of pivoting hinges 614 and 612. To this end, the first hinge 614 and one end rotatably coupled to the other end of the rotary arm 220 is rotatably coupled to the first hinge 614 and the radiation generating unit 222 is provided at the other end Two hinges 612 are provided. A first hinge portion 610 is provided between the rotary arm 220 and the first hinge 614, and a second hinge portion 616 is provided between the first hinge 614 and the second hinge 612. do.

Here, the first and second hinge parts 610 and 616 are installed with a torque motor (not shown) controlled by a separately supplied power, and rotate the first and second hinges 614 and 612, respectively, according to the user's operation. It can be controlled manually or automatically.

6 is a plan view showing a fourth embodiment of the separation arm in the dental composite imaging apparatus according to the present invention, Figure 7 is an operating structure of the spaced apart arm according to the fourth embodiment of the dental composite imaging apparatus shown in FIG. The operation is shown.

A fourth embodiment of the spaced apart arm in the dental composite imaging apparatus 200 according to the present invention is to adjust the distance between the radiation generating unit 222 and the radiation detector 224 using a single pivoting hinge. The same hinge and hinge structure as in the third embodiment is used.

Referring to FIG. 6, as illustrated, a single hinge 712 is rotatably coupled to the other end of the rotating arm 220 by a single hinge 710. In the case of a single hinge 710, a torque motor (not shown) for rotating the single hinge 712 by a separate power supply may be installed and can be manually or automatically controlled according to the user's operation.

On the other hand, the single hinge 710 is further provided with a direction return mechanism for maintaining the radiation generating unit 222 and the radiation detector 224 in the facing direction at the time of the rotation of the single hinge 712. The direction return mechanism unit includes an automatic direction return pulley 810, an automatic direction return cable 812, a spaced hinge cable fixing pin 814, and a return pulley cable fixing pin 816.

For example, when moving from the panorama shooting position to the separation position for sepal shooting, the automatic return cable 812 is wound around the spacer hinge 710, which causes the automatic return cable to be connected to the return pulley cable. The pin 816 is pulled, and the position of the cable fixing pin 816 is directed toward the detector so that the irradiation port 128 faces the detector.

Here, the automatic direction return pulley 810 is provided with a spring device therein, and fixed to the radiation generating unit 122 and must be rotatable using a bearing device or the like in the elastic member 712, and always in the automatic direction It is desirable to maintain the tension of the return cable 812 constant. In the above embodiment, the direction of the irradiation port 128 may be viewed toward the detector through a simple cable connection device regardless of the separation position.

Although described in detail with respect to preferred embodiments of the present invention as described above, those of ordinary skill in the art, without departing from the spirit and scope of the invention as defined in the appended claims Various modifications may be made to the invention.

For example, in the present invention, the dental composite photographing apparatus is described as an example, but the radiation of the dental panoramic apparatus is applied by applying the configuration of the photographing unit, which is a main part of the present invention, to a simple dental panoramic photographing apparatus that does not include a computer tomography function. The generation unit and the radiation detection unit may be used to take a cephalograph. Therefore, modified embodiments including the main part of the present invention will be included in the technical spirit of the present invention.

As described above, according to the dental composite imaging apparatus according to the present invention, by using a simple mechanical device to separate the radiation generating unit from the detector by using an additional detector, tofu fixing, tomography, panoramic photography, cephalo without additional mechanical parts It is possible to take a picture, which can give more convenience and economic benefits to doctors and patients.

Claims (12)

Shape the body and frame and A support arm coupled to the frame and lifted, A rotating device rotatably supported by the support arm, A rotating arm supported by the rotating device and provided with a radiation detector at one end; And a radiation generating unit provided at the other end and having a separation arm for changing a distance between the radiation generating unit and the radiation detector according to imaging conditions. The method of claim 1, The radiation detector and the radiation generating unit is always provided in a state facing each other according to the use conditions, the composite composite imaging, characterized in that the head fixing portion for fixing the head of the patient between the radiation generating unit and the radiation detector is provided. Device. The method of claim 1, The shooting condition is any one selected from tomography, panorama shooting or cephalographing, The spacing arm maintains a reduced distance between the radiation generating unit and the radiation detector during the tomography and the ?? period panoramic photography, and the distance between the radiation generating unit and the radiation detector during the cephalographing. Dental composite imaging apparatus, characterized in that to keep the distance away. The method of claim 1, The spaced arm is provided with a radiation generating portion at the other end, one end of the spaced arm is coupled to be inserted or withdrawn while slidingly moved into the rotary arm, the spaced arm is moved by a cylinder provided on the rotary arm Dental composite photographing apparatus. The method of claim 4, wherein A line pulley for winding a cable for supplying power to the radiation generating unit provided on the spaced arm is provided inside the rotating arm. The line pulley is provided to secure the length of the cable when the distance between the radiation gun generator and the radiation detector is spaced apart, and is provided to wind the cable when the distance of the radiation gun generator relative to the radiation detector is reduced. Dental composite photographing apparatus. The method of claim 1, wherein the spacing arm is A first slider inserted into the rotating arm, A second slider inserted into the first slider and provided with an end of the radiation generator; And a cylinder for inserting or withdrawing the first and second sliders into the first and second sliders. The method of claim 6, A line pulley for winding a cable for supplying power to the radiation generating unit installed in the second slider is provided inside the rotary arm. The line pulley is provided to secure the length of the cable when the distance between the radiation gun generator and the radiation detector is spaced apart, and is provided to wind the cable when the distance of the radiation gun generator relative to the radiation detector is reduced. Dental composite imaging device. The method of claim 1, wherein the spacing arm, A first hinge rotatably coupled to the rotary arm by a first hinge, And a second hinge rotatably coupled to the first hinge by a second hinge and provided with a radiation generator at the other end thereof. The method of claim 8, wherein the first and second hinges And a torque motor for rotating the first and second hinges. The method of claim 1, wherein the spacing arm is A single hinge rotatably coupled to the rotary arm by a single hinge and having a radiation generator at the other end thereof; And a directional return mechanism provided in the single hinge so as to maintain a direction in which the radiation detector and the radiation generator always face each other. The method of claim 10, wherein the single hinge Dental composite imaging apparatus, characterized in that the torque motor for rotating the single hinge is further installed. The method of claim 10, wherein the direction return mechanism portion An automatic directional return pulley fixed to the rotary arm and limited to the rotation of the separation arm, and one end is wound in one direction to one end of the radiation generating unit, and the other end is automatically wound to the other end of the automatic directional return pulley in another direction. A dental composite having a direction return cable, wherein the automatic direction return cable is wound around the automatic direction return pulley according to the rotation of the separation arm so that the direction in which the radiation generating unit and the radiation detector face each other is maintained. Shooting device.

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