KR101037603B1 - Dental X-ray Imaging Apparatus using RPR Driving Type - Google Patents

Abstract

The present invention relates to a dental X-ray imaging apparatus of the RPR drive method. The present invention is a support member 13 supported on the base 11, the elevating member 15 is connected to the lifting member 13 so as to be liftable, and the rotary arm is rotatably connected to the elevating member 15 A support member 30, a rotation arm 33 rotatably connected to the rotation arm support member 30 so as to be linearly movable, an X-ray light source unit 41 provided on the rotation arm 33, and The X-ray sensor unit 43 is rotatably provided on the rotation arm 33 to face the X-ray light source unit 41. According to the present invention configured as described above, an efficient imaging is possible by the RPR driving method, and the X-ray sensor unit rotates, thereby reducing the X-ray imaging time.

X-ray imaging device, X-ray sensor unit, display unit, control unit

Description

Dental X-ray Imaging Apparatus of RPR Drive Type {Dental X-ray Imaging Apparatus using RPR Driving Type}

The present invention relates to a dental X-ray imaging apparatus of the RPR driving method, and more particularly to a dental X-ray imaging apparatus of the RPR driving method having a sensor of the RPR driving method.

In the medical and medical field, a CT (Computerized Tomography) X-ray apparatus transmits a certain amount of X-ray flux to a body part to be photographed, and the X-ray sensor measures the transmitted X-rays and stores the measured data in a memory. Then, the central processing unit provided in the X-ray imaging apparatus calculates the X-ray absorption rate of each point of the body imaging region to implement an image.

In addition, the panoramic X-ray imaging apparatus refers to an imaging apparatus that performs tomography while rotating along a necessary trajectory according to the shape of the arch form. However, a CT X-ray imaging apparatus can only obtain a CT tomographic image and a panoramic X-ray imaging apparatus can obtain only a tomographic image. Therefore, in recent years, devices that can combine not only CT imaging but also panoramic imaging in one X-ray imaging apparatus have been proposed.

1A and 1B show an X-ray imaging apparatus according to the prior art. As shown, the human arch form is formed in a parabolic shape rather than a simple semi-circular shape, so that the X-ray light source and the sensor unit simply do not rotate to obtain a constant panoramic image, and do complex rotational movements or rotational movements simultaneously. Linear motion is required to obtain a consistent panoramic image of parabolic arches. However, in the conventional RP method (a method consisting of one hinge point R and one straight line P), it is not possible to obtain a constant panoramic image for the parabolic arch form.

On the contrary, in the case of panoramic X-ray imaging using the 3R method (three hinge points R) as shown in FIG. 1B, the light source unit and the sensor unit can be freely moved along the arch, so that a constant panoramic image is obtained. You can get it. However, in the case of the 3R type X-ray imaging apparatus, since three degrees of freedom such as R ₁ , R ₂ , and R ₃ are required, it is very difficult to precisely control the light source unit and the sensor unit.

In other words, the degree of freedom in R ₂ are taken into account the location of the R ₁ and the angle (θ ₁₎ and R ₂ binary is inclined line connecting the R _2, and the degree of freedom in R ₃ are lines connecting R ₁ and R ₂ Since both of these inclined positions of the angle (θ _1), R ₂ and angle binary line is inclined to connect the _{R 3 (θ 2), R} 2 position and R ₃ of the consideration is to uniformly control the all of hydraulic side There is a very difficult problem in terms of machine control and

In addition, the conventional X-ray photographing apparatus has a problem in that when the photographing alternately between panoramic X-ray imaging and CT X-ray imaging, the sensor unit needs to be replaced or a separate additional element for the sensor unit is removed.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide an X-ray imaging apparatus with which the sensor unit and the light source unit can be efficiently moved and their control is easy.

Another object of the present invention is to provide a structure of a light source unit and a sensor unit that can facilitate both panoramic and CT imaging.

According to a feature of the present invention for achieving the above object, the dental X-ray imaging apparatus of the RPR drive method of the present invention includes a support pillar supported on the base; An elevating member connected to the support pillar so as to be movable upward and downward; A rotary arm support member rotatably connected to an upper end of the elevating member; A rotary arm rotatably connected to the rotary arm support member and configured to linearly move along a longitudinal direction of the rotary arm support member; An X-ray light source unit provided on the rotating arm and generating X-rays; and provided on the rotating arm so as to face the X-ray light source unit to detect X-rays generated by the X-ray light source unit and to be rotatably connected to the rotating arm. It is preferable to include an X-ray sensor unit capable of panoramic imaging or CT imaging.

The X-ray sensor unit of the present invention is preferably provided with a panoramic sensor unit on one side and a CT sensor unit on the other side to rotate about the central axis or the eccentric axis.

The X-ray sensor unit of the present invention is provided in the X-ray sensor unit, the panorama sensor unit for panorama shooting; Preferably, the X-ray sensor unit includes a CT sensor unit for CT imaging, and a connection member connecting the panoramic sensor unit and the CT sensor unit to fold the panoramic sensor unit and the CT sensor unit.

X-ray sensor unit of the present invention is preferably configured to linearly move along the longitudinal direction of the rotary arm.

The X-ray sensor unit of the present invention is preferably configured to be detachable.

The X-ray light source of the present invention is preferably configured to linearly move along the longitudinal direction of the rotary arm.

The elevating member of the present invention preferably includes a display unit for photographing and displaying the head of the examinee.

The elevating member of the present invention preferably includes a control unit configured to display an image photographed by the display unit and to control the component.

The control unit of the present invention is preferably composed of a touch screen.

The elevating member of the present invention preferably includes a safety unit for controlling the elevating member does not fall above a certain speed.

Rotating arm support member of the present invention preferably includes a cephalo unit comprising a component for shooting cephalo.

The X-ray sensor unit of the dental X-ray imaging apparatus of the present invention is provided in the dental X-ray imaging apparatus, provided to face the X-ray light source for generating X-rays to detect the X-rays generated from the X-ray light source, The rotatable arm is rotatably connected, and preferably panorama photographing or CT photographing is possible.

X-ray sensor unit of the present invention; Preferably, the X-ray sensor unit includes a CT sensor unit for CT imaging, and a connection member connecting the panoramic sensor unit and the CT sensor unit to fold the panoramic sensor unit and the CT sensor unit.

The X-ray sensor unit of the present invention is preferably configured to be detachable.

According to the dental X-ray imaging apparatus of the RPR driving method according to the present invention, the RPR driving method can be taken efficiently, and the X-ray sensor unit is rotated, thereby reducing the X-ray imaging time.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the dental X-ray imaging apparatus of the RPR drive method according to the present invention will be described in more detail.

2 to 5 show a preferred embodiment of the dental X-ray imaging apparatus of the RPR drive method according to the present invention.

As shown, the support pillar 13 is vertically connected to the base 11 on which the X-ray photographing apparatus of the present invention is supported, and the lifting member 15 is provided at the tip of the supporting pillar 13 to lift the lifting member. (15) moves vertically in the vertical direction.

One surface of the elevating member 15 may be provided with a head fixing table 20 for fixing the head of the examiner. The head restraint 20 is provided with a jaw support 21 and a head fixing means 23 to align and fix the head of the examiner.

A display unit 25 for photographing and displaying the head of the examiner may be provided on the elevating member 15 so that the examiner can look at the position where the head is fixed by the head fixing means 23. The display unit 25 is provided with a photographing means (not shown) for photographing the head of the examinee. Accordingly, the examinee head may be aligned by matching the examinee head photographed by the photographing means with an alignment line separately displayed on the display unit 25.

The head fixture 20 may be provided with a control unit 27 for controlling the X-ray imaging apparatus according to the present invention or to align the head of the examiner. The control unit 27 may be configured as a touch screen to control the X-ray photographing apparatus by pressing an input key, or align the examiner's head by matching the examiner's head displayed on the control unit 27 with an alignment line.

The rotary arm supporting member 30 is connected to the upper end of the elevating member 15. The rotary arm support member 30 serves to support the rotary arm 33 to be described below and is rotatably connected to the upper end of the elevating member 15.

The rotary arm support member 30 is configured to be rotatable about one end connected to the elevating member 15. One surface of the rotary arm support member 30 may be provided with a cephalo unit 31 for sephalographing, and the rotary arm 33 is provided at the tip of the rotary arm support member 30.

The rotary arm 33 is rotatably connected to the rotary arm support member 30, the rotary arm 33 is provided with a separate drive means (not shown) is the rotary arm support member 30 It is configured to be movable in a direction parallel to the longitudinal direction of. In other words, the rotary arm 33 may rotate based on a point connected to the rotary arm support member 30, or may linearly move along the rotary arm support member 30.

Both ends of the rotary arm 33 are provided with the X-ray light source 41 and the X-ray sensor 43 facing each other. The X-ray light source unit 41 generates X-rays and irradiates the examinee, and may be rotatable at one end of the rotary arm 33 and connected to move linearly along the rotary arm 33. The X-ray light source unit 41 is provided with an X-ray generating unit for generating X-rays and a collimator for adjusting the X-ray amount so that X-rays are transmitted to the X-ray sensor unit 43 through the examiner.

The X-ray sensor unit 43 is rotatably connected to one end of the rotary arm 33. The X-ray sensor unit 43 may rotate based on the central axis or the eccentric axis of the X-ray sensor unit 43. In addition, the X-ray sensor unit 43 may be configured to linearly move in parallel with the longitudinal direction of the rotary arm (33). In addition, the X-ray sensor unit 43 is configured to be detachable from the rotary arm 33 can be separated separately stored or exchanged.

In addition, the X-ray sensor unit 43 is provided with a dedicated sensor used for panoramic imaging and CT imaging, respectively. One surface of the X-ray sensor unit 43 is provided with a panoramic sensor surface used for panorama photography, and the other surface of the X-ray sensor unit 43 is provided with a CT sensor surface used for CT imaging. Therefore, the X-ray sensor unit 43 rotates and selectively performs panorama imaging and CT imaging.

5 shows another embodiment of the X-ray sensor unit 43. As shown, the X-ray sensor unit 43 may be configured in a folder type. The X-ray sensor part 43 is composed of a panoramic sensor part 45 and a CT sensor part 47, and the panoramic sensor part 45 and the CT sensor part 47 are connected by a connecting means 49 to be a folder. Configured to fold in a manner. The connecting means 49 may be configured such as an electronically controlled hinge.

The panoramic sensor unit 45 and the CT sensor unit 47 may be integrally rotated based on a point where the panoramic sensor unit 45 and the CT sensor unit 47 are connected. The panoramic sensor unit 45 and the CT sensor unit 47 is provided with a rotation axis, and the rotation axis is connected to the rotation arm 33 so as to be rotatable to the panoramic sensor unit 45 and the CT sensor unit ( 47 is configured to rotate integrally.

As such, when the panoramic sensor unit 45 and the CT sensor unit 47 are integrally rotated, the positions of the panoramic sensor unit 45 and the CT sensor unit 47 are changed to each other to selectively perform panorama and CT imaging. Can be done.

The rotary arm support member 30 of the X-ray imaging apparatus of the present invention is rotatably connected to the tip of the elevating member 15, the rotary arm 33 is rotatably connected to the rotary arm support member 30 and Since it is configured to move in a straight line at the same time, it becomes an RPR drive type X-ray imaging apparatus having two hinge points (R) and one straight line (P).

In addition, the X-ray imaging apparatus of the present invention may be provided with a control unit for controlling each component, and when the lifting member 15 falls above a certain speed, a separate to stop the falling of the lifting member 15 A safety unit (not provided) may be provided.

Hereinafter, the operation of the dental X-ray imaging apparatus of the RPR driving method according to the present invention having the configuration as described above in detail.

The head of the examinee is placed in the jaw rest 21 of the head restraint 20. Then, the examiner's head is aligned so that the image of the examinee's head displayed on the display unit 25 matches the alignment line, or the examiner's head is aligned so that the image of the examiner's head displayed on the control unit 27 matches the alignment line.

When the examiner's head is aligned, a panoramic photograph or a CT scan is performed through the control unit 27. At this time, since the X-ray sensor unit 43 of the present invention is configured to rotate, panoramic imaging and CT imaging can be simultaneously performed.

As shown in FIG. 6, the X-ray imaging apparatus of the present invention considers only two degrees of freedom according to the movement of the rotary arm support member 30 and the rotary arm 33, and the rotary arm 33 is the rotary arm. Since the linear movement in parallel with the longitudinal direction of the support member 30 can be taken to accurately take a panoramic image along the parabolic dental arch.

In addition, immediately after the rotation arm 33 is rotated to take a panorama photograph, the X-ray sensor unit 43 connected to the rotation arm 33 may be rotated to perform CT imaging. At this time, in order to obtain a clear image, the X-ray sensor unit 43 may linearly move along the longitudinal direction of the rotary arm 33 to maintain an optimal magnification.

7A to 7C illustrate a process of performing panorama photographing and CT photographing by the X-ray sensor unit 43 having a folder shape. As shown, panorama photographing is performed while the panorama sensor unit 45 and the CT sensor unit 47 are folded. When the panorama photographing is finished, the CT sensor portion 47 faces the X-ray light source portion 41 because the panoramic sensor portion 45 is unfolded by the connecting means 49 as shown in FIG. 7B. Therefore, CT imaging is performed by the CT sensor unit 47.

In order to take a panorama again while the panorama sensor unit 45 is unfolded, the panorama sensor unit 45 and the CT sensor unit 47 are integrally rotated by the connecting unit 49 to perform the panorama sensor unit 45. ) And the position of the CT sensor 47. Then, since the panorama sensor unit 45 faces the X-ray light source unit 41, panorama shooting may be performed.

8A, 9A, and 10A show a time-dependent displacement angle in each part of the conventional 3R type X-ray imaging apparatus, and FIGS. 8B, 9B and 10B show the time-dependent displacement in each portion of the X-ray imaging apparatus according to the present invention. The angle of displacement is shown.

The time-dependent displacement angle in the drawing is a result of measuring by a large displacement component (for example, a rotating arm, a rotating arm supporting member or an X-ray light source unit and a sensor unit) in the X-ray imaging apparatus. The displacement angle in each component may have a positive value from a negative value according to the movement trajectory of each component. The displacement angle is set to have a positive value when moving in the same direction from the initially set reference and a negative value when moving in the opposite direction. In addition, in the case of a component having a large displacement, the value of the displacement angle is also increased, and in the case of a component having a small displacement, the value of the displacement angle is also reduced.

As shown, the time-dependent displacement angle of the X-ray imaging apparatus according to the present invention is relatively smaller than the time-dependent displacement angle of the conventional X-ray imaging apparatus of the 3R method. Since the magnitude of the displacement angle over time means that the displacement width in each component of the X-ray imaging apparatus is small, it can be seen that the width of the component moves for X-ray imaging is small.

Therefore, it can be seen that the X-ray imaging apparatus according to the present invention can be driven more efficiently than the conventional apparatus because the displacement width required for the same X-ray imaging is relatively smaller.

In the scope of the basic technical spirit of the present invention, many modifications are possible to those skilled in the art, and the scope of the present invention should be interpreted based on the claims which will be described later. .

According to the dental X-ray imaging apparatus of the RPR driving method according to the present invention as described in detail above has the following advantages.

Since the rotating arm supporting member is rotated and the rotating arm is configured to rotate and linearly move, it is driven by the RPR method. Therefore, the number of degrees of freedom of each member can be lowered and the member can be efficiently driven, thus reducing the X-ray imaging time. There is an advantage that can take a precise shot.

In addition, the X-ray sensor unit rotates to allow panoramic and CT imaging to proceed continuously without any downtime, thus improving the efficiency of X-ray imaging and precisely aligning the examinee's head through the display and control unit. There is an advantage to this.

1a and 1b is an operating state diagram showing an X-ray photographing state of the X-ray imaging apparatus according to the prior art.

Figure 2 is a perspective view showing a preferred embodiment of the dental X-ray imaging apparatus of the RPR drive method according to the present invention.

3 is a front view of FIG. 2;

Figure 4 is an operational configuration showing the operating state of the dental X-ray imaging apparatus of the RPR driving method according to the present invention.

Figure 5 is a partial perspective view showing another embodiment of the X-ray sensor unit of the dental X-ray imaging apparatus of the RPR drive method according to the present invention.

6 is an operational state diagram showing the RPR driving method of the dental X-ray imaging apparatus of the RPR driving method according to the present invention.

7a to 7c is a flowchart showing the photographing procedure of the dental X-ray imaging apparatus of the RPR drive method according to the present invention.

8a, 9a and 10a shows the time-dependent displacement angle of the conventional 3R X-ray imaging apparatus, Figures 8b, 9b and 10b is a graph showing the time-dependent displacement angle of the dental X-ray imaging apparatus of the RPR driving method according to the present invention .

Description of the main parts of the drawing

15: elevating member 25: display unit

27: control unit 30: rotary arm support member

33: rotary arm 41: X-ray light source

43: X-ray sensor unit 45: Panoramic sensor unit

47: CT sensor unit 49: connecting member

Claims (14)

A support column supported on the base; An elevating member connected to the support pillar so as to be movable upward and downward; A rotary arm support member rotatably connected to an upper end of the elevating member; A rotary arm rotatably connected to the rotary arm support member and configured to linearly move along a longitudinal direction of the rotary arm support member; An X-ray light source unit provided in the rotating arm and generating X-rays; and An X-ray sensor unit provided on the rotating arm so as to face the X-ray light source unit to detect X-rays generated by the X-ray light source unit, rotatably connected to the rotating arm, and capable of panoramic or CT imaging; Two hinge points R provided between the elevating member and the rotary arm supporting member and between the rotary arm supporting member and the rotary arm and the rotary arm supporting member are rotatably connected to each other. It is configured to move or rotate along the arch form by the RPR driving method constituted by one straight path (P) of the rotary arm moving along RPR driven dental x-ray apparatus. The method of claim 1, The X-ray sensor unit One side is provided with a panoramic sensor unit and the other side is provided with a CT sensor unit to rotate about the central axis or the eccentric axis  RPR driven dental x-ray apparatus. The method of claim 1, The X-ray sensor unit A panoramic sensor unit provided in the X-ray sensor unit and configured to take a panorama; A CT sensor unit provided in the X-ray sensor unit for CT imaging; and And connecting means for connecting the panoramic sensor unit and the CT sensor unit such that the panoramic sensor unit and the CT sensor unit are folded. RPR driven dental x-ray apparatus. The method of claim 1, The X-ray sensor unit Configured to move linearly along the longitudinal direction of the rotary arm RPR driven dental x-ray apparatus. The method of claim 1, The X-ray sensor unit Configured to be removable RPR driven dental x-ray apparatus. The method of claim 1, The X-ray light source unit Configured to move linearly along the longitudinal direction of the rotary arm RPR driven dental x-ray apparatus. The method of claim 1, The lifting member is It includes a display unit for photographing and displaying the head of the examinee RPR driven dental x-ray apparatus. The method of claim 7, wherein The lifting member is And a control unit for displaying an image photographed by the display unit and performing an operation related to panorama photographing or CT photographing. RPR driven dental x-ray apparatus. delete The method of claim 1, The lifting member is It includes a safety unit for controlling the lifting member does not fall above a certain speed. RPR driven dental x-ray apparatus. The method according to any one of claims 1 to 8 and 10, The rotary arm support member Including a cephalo unit containing the components for shooting cephalo RPR driven dental x-ray apparatus. It is provided in the dental X-ray imaging apparatus, provided to face the X-ray light source for generating X-rays to detect the X-rays generated by the X-ray light source, and to be rotatable to the rotary arm of the dental X-ray imaging apparatus Connected, panorama shooting or CT shooting, Rotatably connected to two hinge points (R) and the rotary arm support member provided between the lifting member and the rotary arm support member of the dental X-ray imaging apparatus and between the rotary arm support member and the rotary arm. It is configured to move or rotate along the arch form by the RPR driving method constituted by one straight path (P) of the rotary arm moving along the rotary arm support member. X-ray sensor part of dental X-ray imaging apparatus. The method of claim 12, The X-ray sensor unit A panoramic sensor unit for panorama photographing; A CT sensor unit provided in the X-ray sensor unit for CT imaging; and And connecting means for connecting the panoramic sensor unit and the CT sensor unit such that the panoramic sensor unit and the CT sensor unit are folded. X-ray sensor part of dental X-ray imaging apparatus. The method of claim 12, The X-ray sensor unit Configured to be removable X-ray sensor part of dental X-ray imaging apparatus.

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