KR101796512B1

KR101796512B1 - Dual head type radio therapy apparatus convenient for maintenance

Info

Publication number: KR101796512B1
Application number: KR1020160024698A
Authority: KR
Inventors: 김경환
Original assignee: 주식회사 엔티로봇; 김경환
Priority date: 2016-02-29
Filing date: 2016-02-29
Publication date: 2017-11-10
Also published as: KR20170101725A

Abstract

The present invention discloses a dual head type radiation therapy apparatus that is easy to maintain. A radiation therapy apparatus according to the present invention comprises: a first rotating plate and a second rotating plate arranged in parallel to each other; A first support frame rotatably supporting the first rotation plate; A second support frame rotatably supporting the second rotation plate; A first radiation head movably coupled to a first guide means formed on an inner surface of the first rotary plate; And a second radiation head movably coupled to a second guide means formed on an inner surface of the second rotary plate.
According to the present invention, the inner device disposed between the rotating plates can be taken out to the outside through the guide means, and the rotating plate itself can be moved easily, so that the maintenance of the dual head type radiotherapy apparatus becomes more convenient.

Description

[0001] The present invention relates to a dual head type radiotherapy apparatus,

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a radiation therapy apparatus, and more particularly, to a dual head type radiation therapy apparatus capable of more conveniently maintaining various devices installed in a gantry.

Generally, radiation therapy is a therapeutic method of destroying malignant tissue or inhibiting or delaying growth by destroying a target tissue by using high-energy radiation such as X-rays, gamma rays, electron beams, and proton rays.

However, since irradiation of normal tissues with radiation may damage normal tissue, the radiation therapy apparatus is designed to control the irradiation angle and dose in a very precise manner.

There are many types of radiotherapy devices. Recently, a ring type gantry or a C type gantry has been widely used as a device capable of moving a radiation source at various angles along the periphery of a patient by attaching a radiation source to the gantry.

Conventionally, a single-head type treatment apparatus in which a single radiation source is mounted on a gantry has been mainly used. Recently, a dual-head gantry having two radiation sources has been widely used for increasing the treatment speed and for more three-

Patent Document 1 discloses a radiation treatment apparatus including a dual head gantry. The radiation treatment apparatus according to Patent Document 1 includes a cylindrical frame body, a first rotating plate and a second rotating plate mounted on both sides of the frame body, A first radiation head, a first photographing unit, a beam stopper, and a detector, which are respectively installed on the first rotary plate, and a second radiation head and a beam stopper provided on the second rotary plate.

However, the radiation therapy apparatus according to Patent Document 1 has a disadvantage that maintenance is very inconvenient. That is, since the radiation head and the imaging unit are located in a narrow space between the two rotation plates, the rotation plate must be separated from the frame body in order to maintain or replace the internal apparatus located between the rotation plates. Since the weight of the beam stopper made of lead is considerable, it is very difficult to move the rotary plate by the human force, and it is troublesome to use additional additional equipment.

The first or second rotary plate may be provided with a door for viewing the internal device. However, the accessibility to the internal device is very limited, which makes maintenance difficult.

1 to 3 are views showing a dual head type radiotherapy apparatus 10 developed by the present applicant. The radiation therapy apparatus 10 has a ring gantry structure. Specifically, the radiation treatment apparatus 10 includes a first rotary plate 21 and a second rotary plate 22, which are arranged in parallel with each other and each has a penetrating portion formed therein, And a second rotation shaft 22a protruding outward from the penetration portion of the second rotation plate 22. The first rotation shaft 21a protrudes outward from the second rotation plate 22, The penetrating portion formed in the first rotating plate 21 and the second rotating plate 22 is a portion in and out of the supporting member supporting the patient.

A plurality of connecting rods 30 are provided between the first rotating plate 21 and the second rotating plate 22. Both ends of the connecting rod 30 may be fixed to the first rotating plate 21 and the second rotating plate 22, respectively, or at least one end may be coupled to the rotating plate so that the rotating plate can rotate.

When both ends of the connecting rod 30 are fixed to the first rotating plate 21 and the second rotating plate 22, the first rotating plate 21 and the second rotating plate 22 are integrally connected to each other, The first rotary plate 21 and the second rotary plate 22 are simultaneously rotated by rotating the first rotary shaft 21a or the second rotary shaft 22a.

A groove for inserting an edge of the first rotary plate 21 or the second rotary plate 22 is formed at one end of the connecting rod 30 and the edge of the first rotary plate 21 or the second rotary plate 22 is inserted into the groove The first rotary plate 21 or the second rotary plate 22 can rotate in a state where the edge is inserted into the groove. In this case, the first rotating plate 21 and the second rotating plate 22 can be independently rotated using separate rotation driving means.

The first rotation shaft 21a is rotatably supported by the first support frame 41 and the lower end of the first support frame 41 is fixed to the base by a pair of fixing members 43. [ The second rotation shaft 22a is rotatably supported by the second support frame 42 and the lower end of the second support frame 42 is fixed to the base by a pair of fixing members 44. [ The rotation shaft support members 51 and 52 may be mounted around the first rotation shaft 21a and the second rotation shaft 22a, respectively.

A rib structure 25 for reinforcing rigidity may be formed inside the first rotating plate 21 and the second rotating plate 22.

2, a first radiation head 60a for irradiating radiation is provided inside the first rotary plate 21, and a beam stopper (not shown) is provided at a position opposite to the first radiation head 60a by 180 degrees. 83 are installed.

3, a second radiation head 60b for irradiating radiation is provided inside the second rotary plate 22, and a beam stopper 83 (see FIG. 3) is provided at a position opposed to the second radiation head 60b by 180 degrees. Is installed. First and second imaging units 70a and 70b are provided on both sides of the second radiation head 60b and first and second imaging units 70a and 70b are disposed at positions 180 degrees opposite to the first and second imaging units 70a and 70b, Second detectors 71a and 71b are provided.

The first and second radiation heads 60a and 60b are for irradiating the target tissue of the human body with radiation, and may each include a radiation source and a linear accelerator. The first and second imaging units 70a and 70b radiate X-rays or the like to assist in the treatment by acquiring CT images of the target tissue and the adjacent tissue.

The detector 81 can be provided on the upper portion of the beam stopper 83 opposed to the first and second radiation heads 60a and 60b and a predetermined image can be obtained through the detector 81. [

In the figure, the first and second radiation heads 60a and 60b are shown to be spaced 90 from each other with respect to the center of rotation, but are not limited thereto. When the first and second rotary plates 21 and 22 are independently controlled, the angle between the first and second radiation heads 60a and 60b can be variously set as needed.

That is, the apparatus controller (not shown in the drawing) appropriately rotates the first and second rotary plates 21 and 22 according to the position, shape, etc. of the target tissue to adjust the positions of the first and second radiation heads 60a and 60b Can be adjusted as needed.

The gantry structure of the radiation therapy apparatus 10 shown in Figs. 1 to 3 does not use a cylindrical frame body. Therefore, compared to the gantry structure of the patent document 1, the gantry structure of the radiation therapy apparatus 10 shown in Figs. Which is an advantage of improved accessibility.

However, since the interval between the first rotating plate 21 and the second rotating plate 22 must be minimized in order to make the treatment apparatus 10 compact, there remains a need to improve the convenience of replacement or maintenance of the internal apparatus.

Korean Registered Patent No. 10-1465650 (published on November 27, 2014)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a dual head type radiotherapy apparatus capable of more conveniently maintaining various internal apparatuses provided between two rotating plates.

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a plasma display panel comprising: a first rotating plate and a second rotating plate arranged parallel to each other; A first support frame rotatably supporting the first rotation plate; A second support frame rotatably supporting the second rotation plate; A first radiation head movably coupled to a first guide means formed on an inner surface of the first rotary plate; And a second radiation head movably coupled to a second guide means formed on the inner surface of the second rotary plate.

In the radiation therapy apparatus according to one aspect of the present invention, the first sliding bracket and the second sliding bracket are movably coupled to the first guide means and the second guide means, respectively, and the first radiation head and the second radiation beam The heads may be mounted on the first sliding bracket and the second sliding bracket, respectively.

In addition, in the radiation treatment apparatus according to an aspect of the present invention, the first radiation head and the second radiation head move along the first guide means and the second guide means to an inner operation position or an outer maintenance position Wherein the first rotation plate is provided with fixing means for fixing the position of the first radiation head at the operation position or the maintenance position, and the second rotation plate is provided with the second rotation plate at the operating position or the maintenance position, Fixing means for fixing the position may be provided.

The radiation therapy apparatus according to one aspect of the present invention further includes rotation control means for rotating the first rotation plate or the second rotation plate to maintain the first guide means or the second guide means in a horizontal state for maintenance, ; And a brake device for preventing rotation of the first rotation plate or the second rotation plate after the first guide means or the second guide means is in a horizontal state.

According to another aspect of the present invention, there is provided a liquid crystal display comprising: a first rotating plate and a second rotating plate arranged in parallel to each other; A first support frame rotatably supporting the first rotary plate and movably coupled to a guide means formed on a base; A second support frame rotatably supporting the second rotation plate and fixed to the base; A first radiation head coupled to an inner surface of the first rotating plate; And a second radiation head coupled to an inner surface of the second rotation plate, wherein the guide means is disposed in parallel to a rotation axis direction of the first rotation plate and the second rotation plate. do.

According to another aspect of the present invention, there is provided a liquid crystal display comprising: a first rotating plate and a second rotating plate arranged in parallel to each other; A first support frame rotatably supporting the first rotation plate and rotatably coupled to the base by a vertical rotation axis; A second support frame rotatably supporting the second rotation plate and fixed to the base; A first radiation head coupled to an inner surface of the first rotating plate; And a second radiation head coupled to an inner surface of the second rotating plate.

According to the present invention, the inner device disposed between the two rotary plates can be taken out to the outside through the guide means, and the rotary plate itself can be moved easily, which is advantageous in that the maintenance of the dual head type radiotherapy apparatus becomes much easier .

1 is a perspective view of a conventional dual head type radiotherapy apparatus
2 is an internal view of a first rotary plate of a conventional radiotherapy apparatus and an illustration of a first radiation head
Fig. 3 is a view showing the inside view of the second rotating plate and the second radiation head of the conventional radiotherapy apparatus
4 is a perspective view of a radiation therapy apparatus according to a first embodiment of the present invention;
5 is a view showing the inside of the first rotating plate of the radiation therapy apparatus according to the first embodiment of the present invention
6 is a view showing the inside of the second rotating plate of the radiation therapy apparatus according to the first embodiment of the present invention
7 is a view showing a state in which the sliding bracket is moved to the vicinity of the edge of the second rotary plate
8 is a view showing the sliding bracket moving along the guide means
9 is a cross-sectional view of the radiation therapy apparatus according to the second embodiment of the present invention
Figs. 10 and 11 are respectively a cross-sectional view and a perspective view showing a state in which the first rotary plate is moved in Fig. 9,
12 is a plan view of the radiation therapy apparatus according to the third embodiment of the present invention
Figs. 13 and 14 are a plan view and a perspective view, respectively, of a state in which the first rotating plate is rotated in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

It is to be understood that when an element is connected or coupled to another element in this specification, the element may be directly or indirectly connected to or coupled to another element, . Also, when an element is directly connected or directly coupled to another element, it means that no other element is interposed in between. Also, it is to be understood that a part including or including an element does not exclude other elements, but may further include or be equipped with other elements, unless specifically stated otherwise. It should be understood that the drawings are not intended to limit the scope of the present invention and should not be construed as limiting the scope of the present invention. Of course.

1st Example

As shown in the perspective view of FIG. 4, the dual head type radiotherapy apparatus 100 according to the first embodiment of the present invention includes first and second rotating plates 21 and 22, first and second rotating plates 21 and 22, A plurality of connecting rods 30 provided between the rotary plates 21 and 22, first and second support frames 41 and 42 for rotatably supporting the first and second rotary plates 21 and 22, A first radiation head 60a coupled to the inner surface of the rotary plate 21, a second radiation head 60b coupled to the inner surface of the second rotary plate 22, and a second radiation head 60b disposed on both sides of the second radiation head 60b, The first and second photographing units 70a and 70b, and the functions of the respective apparatuses are the same as those described with reference to FIG. 1, so that the description thereof is omitted here.

However, in the dual head type radiotherapy apparatus 100 according to the first embodiment of the present invention, various internal devices installed on the first and second rotary plates 21 and 22 are provided on the first and second rotary plates 21 and 22 It is characterized by the point of movement.

To this end, the first and second rotary plates 21 and 22 are provided with guiding means for guiding movement, and each of the internal devices may be directly coupled to the guiding means, or indirectly through the sliding bracket mounted on the guiding means. Lt; / RTI >

Hereinafter, it is assumed that a sliding bracket capable of mounting various internal devices is coupled to the guide means formed on the first and second rotary plates 21 and 22.

4, the first radiation head 60a is attached to and supported by a sliding bracket 141, and the sliding bracket 141 is guided by guide means formed on the inner surface of the first rotary plate 21 And moves along the guide means 111. As shown in Fig.

The guide means 111 is formed in the radial direction of the first rotary plate 21 so that the operator can move the sliding bracket 141 to draw the first radiation head 60a to the outside maintenance position, To the position of use.

The first radiation head 60a is fixed to the inner side of the first rotary plate 21 but the first radiation head 60a is moved along the guide means 111 to the first rotary plate 21 So that the maintenance or replacement of the first radiation head 60a is advantageous compared to the prior art.

4 shows a state in which the first radiation head 60a is drawn out to the outside along the guide means in a state where the first radiation head 60a is mounted on the sliding bracket 141. This drawing method is applied to the first and second rotary plates 21 and 22 It is of course applicable to all internal components installed.

5, guide means 112 for the beam stopper 83 may be provided on the inner surface of the first rotary plate 21 in addition to the guide means 111 for the first radiation head 60a.

A sliding bracket 142 is movably coupled to the guide means 112 and a beam stopper 83 is coupled to the sliding bracket 142. The guiding means 112 may be formed at a position rotated by 180 degrees with respect to the guiding means 111.

The first radiation head 60a and the beam stopper 83 coupled to the first rotating plate 21 can easily move to the outside of the first rotating plate 21 through the sliding brackets 141 and 142, And product replacement work becomes very convenient. It is also very easy to return to the original position after maintenance.

6, the second radiation head 60b, the first imaging unit 70a, the second imaging unit 70b, the beam stopper 83, the first imaging unit 70a, the second imaging unit 70b, And the sliding brackets 151, 152, 153, 154, 155, and 156 may be movably coupled to the guide units 121, 122, 123, 124, 125, and 126 for the first detector 71a and the second detector 71b, respectively.

7, the second radiation head 60b, the first imaging unit 70a, the second imaging unit 70b, the beam stopper 83, the first detector 71a, and the second The detector 71b can move to the outside of the second rotary plate 22 along the guide means 121, 122, 123, 124, 125 and 126, thereby facilitating maintenance and product replacement. It is possible to directly couple each internal device to the guide means as described above.

5 and 6, all of the guide means 111, 112, 121, 122, 123, 124, 125 and 126 are formed in the radial direction of the first and second rotary plates 21 and 22, but this is only an example.

Therefore, the directions of the guide units 111, 112, 121, 122, 123, 124, 125, and 126 may vary depending on the arrangement and size of various internal devices installed in the first and second rotary plates 21 and 22. This is because the drawing direction of each of the internal devices may be changed depending on the arrangement of the internal devices.

Since each guide means 111, 112, 121, 122, 123, 124, 125, 126 is used for pulling out the internal device for maintenance, one end of each of the guide means 111, 112, 121, 122, 123, 124, 125, 126 reaches the vicinity of the edge of the first and second rotary plates 21, 22 desirable.

On the other hand, the structure and the kind of each guide means (111, 112, 121, 122, 123, 124, 125, 126) are not particularly limited either.

For example, the guide means may be a rail or a slide mounted on the surfaces of the first and second rotary plates 21 and 22, or may be a rail groove recessed in the surface. Also, a multi-step slide may be used to fully draw out the internal device. Also, a roller for smooth movement may be provided on the guide means or the sliding bracket coupled thereto.

However, all the guide means 111, 112, 121, 122, 123, 124, 125, 126 must be capable of supporting the loads of the corresponding internal devices and have a rigid structure capable of withstanding various vibrations and leanings generated during the rotary motion of the rotary plates 21,

It is also preferable that each of the guide means 111, 112, 121, 122, 123, 124, 125, 126 has a structure that is not exposed to the outside when the treatment apparatus 100 operates.

Further, when moving the sliding brackets 141, 142, 151, 152, 153, 154, 155, 156 along the respective guide means 111, 112, 121, 122, 123, 124, 125, 126, it is necessary to appropriately limit the moving range of the sliding bracket.

8, the stoppers 171 and 172 are provided at one end and the other end of the guide means 111, respectively. When the sliding bracket 141 is pushed in, the stopper 171 moves to the first position The stopper 172 is preferably stopped at the second position (maintenance position) when the sliding bracket 141 is removed. The specific structure of the stoppers 171 and 172 is not particularly limited.

Meanwhile, the various internal devices installed in the first and second rotary plates 21 and 22 are kept in a state in which the relative posture or position is adjusted in a very precise manner during the operation of the radiation therapy apparatus 100 according to the embodiment of the present invention do. Accordingly, the sliding bracket positioned at the first position (operating position) or the second position (maintenance position) must be fixed very firmly so that it does not move while the radiation therapy apparatus 100 is operating.

If the sliding bracket 141 moves in the first position (operation position), malfunction of the treatment apparatus 100 is caused. If the sliding bracket 141 moves in the second position (maintenance position), it is difficult to repair the drawn- Because.

The method of fixing the sliding bracket 141 may be appropriately selected depending on the weight or size of the apparatus mounted on the sliding bracket 141. [

The sliding bracket 141 is moved to the first position by using a separate fixing means (for example, a clamp or the like) in a state where the sliding bracket 141 is moved to the first position (operation position) or the second position Or the second rotary plates 21 and 22, respectively.

A fixing projection (175 in Fig. 8) is formed at a first position (operation position) or a second position (maintenance position) of the guide means 111 so that the sliding bracket 141 does not move along the guide means 111 It may be fixed. However, in this case, since the fixing force is relatively weak, it may be difficult to apply when the load of the internal device mounted on the sliding bracket 141 is large.

On the other hand, when the internal device installed between the first and second rotary plates 21 and 22 is taken out to the outside, the guide means corresponding to the internal device is moved in the horizontal direction through the rotation control means (not shown) 1 and the second rotating plates 21 and 22 are rotated.

For example, when the first and second rotary plates 21 and 22 are rotated so that the guide means 111 is horizontal, as shown in FIG. 4, the sliding bracket 141, on which the first radiation head 60a is mounted, It is possible to move the first radiation head 60a outward more safely.

If the guide means 111 has a downward inclination with respect to the horizontal direction, a safety accident may occur because the load of the first radiation head 60a is borne by the operator. If the guide means 111 has an upward inclination, the first radiation head 60a is very It will be difficult to draw smoothly because it is heavy.

On the other hand, even if the first and second rotary plates 21 and 22 are rotated so that the guide means 111 is horizontal, when the inner device moves along the guide means 111, The center of gravity of the second rotary plate 22 may be changed and the first rotary plate 21 and / or the second rotary plate 22 may be moved. In order to prevent this, the first rotating plate 21 and / or the second rotating plate 22 are rotated to rotate the first rotating plate 21 and / or the second rotating plate 22 so that the first rotating plate 21 and / It is preferable to fix the second rotary plate 22 so as not to rotate any more.

To this end, it is preferable to provide a brake device (not shown) which can be used by the operator as needed on the first rotary plate 21 and / or the second rotary plates 21 and 22.

Second Example

As shown in the sectional view of FIG. 9, the dual head type radiotherapy apparatus 100a according to the second embodiment of the present invention includes a base 200, a first rotating plate 110 disposed on the base 200, First and second support frames 41 and 42 for rotatably supporting the first and second rotary plates 21 and 22 and the first and second rotary plates 21 and 22, And guiding means 210 arranged parallel to the rotational axis direction of the first and second rotary plates 21.

A plurality of connecting rods 30 provided between the first and second rotary plates 21 and 22, a first radiation head 60a coupled to the inner surface of the first rotary plate 21, The second radiation head 60b coupled to the side surface, the first and second radiation imaging units 70a and 70b located on both sides of the second radiation head 60b, and the like are the same as those of the first embodiment .

Particularly, in the dual head type radiotherapy apparatus 100a according to the second embodiment of the present invention, the lower end of the first support frame 41 is movable by the first fixing member 43 to the guide means 210 . The first fixing member 43 may be coupled to the moving block 220 movably coupled to the guide means 210.

On the other hand, the lower end of the second support frame 41 is fixed to the base 200 by the second fixing member 44.

The guiding means 210 is not particularly limited in kind and structure but two or more guiding means 210 may be provided for more stable movement of the first supporting frame 41, It is preferable to movably couple the lower end of the lower case 41 to the lower case.

The guide means 210 is preferably parallel to the direction of the rotation axis of the first and second rotation plates 21 and 22, but is not necessarily limited to this. Therefore, the direction of the rotation axis of the first and second rotation plates 21 and 22 is slightly As shown in FIG.

It is preferable that stoppers 230 are provided at both ends of the guide means for limiting the range of movement of the first support frame 41. Each stopper 230 serves to stop the first support frame 41 at the first position (the operation position) and the second position (the maintenance position).

According to the second embodiment of the present invention, the first support frame 41 supporting the first rotary plate 21 and the first radiation head 60a and the like coupled thereto can be moved along the guide unit 210 , Whereby the gap between the first rotary plate 21 and the second rotary plate 22 can be widened as shown in the sectional view of FIG. 10 and the perspective view of FIG.

When the interval between the first rotary plate 21 and the second rotary plate 22 is enlarged as described above, the operator can enter the space between the first rotary plate 21 and the second rotary plate 22, .

Since the connecting rod 30 is provided between the first rotating plate 21 and the second rotating plate 22, in order to apply the second embodiment of the present invention, at least the first rotating plate 21 is provided with a connecting rod 30 Should be detachably coupled.

Third Example

As shown in the plan view of FIG. 12, the dual head type radiotherapy apparatus 100b according to the third embodiment of the present invention includes a base 200, a first rotating plate 110 disposed on the base 200, And first and second support frames 41 and 42 for rotatably supporting the first and second rotary plates 21 and 22 and the first and second rotary plates 21 and 22, respectively.

Particularly, in the third embodiment of the present invention, the first support frame 41 is rotatably coupled to the base 200 by the rotation shaft 240 in the vertical direction, and the lower end of the second support frame 41 is rotated And fixed to the base 200 by a fixing member 44.

Therefore, when the first support frame 41 is rotated about the rotation axis 240, as shown in the plan view of FIG. 13 and the perspective view of FIG. 14, the first support frame 41 and the first rotation plate 21, The radiation head 60a or the like moves in a direction away from the second rotary plate 22. [

As a result, if the interval between the first rotary plate 21 and the second rotary plate 22 is widened, the operator can enter the space between the first rotary plate 21 and the second rotary plate 22, so that it is very convenient to replace or maintain the internal device.

In this case also, the connecting rod 30 connecting the first rotating plate 21 and the second rotating plate 22 must be removably coupled to at least the first rotating plate 21.

Meanwhile, when one or more casters 250 are mounted on the lower end of the first support frame 41, the first support frame 41 can move more stably along the upper surface of the base 200. A curved guide means corresponding to the movement locus of the first support frame 41 is provided on the upper surface of the base 200 instead of the caster 250 and the lower end of the first support frame 41 is fixed to the curved guide means Or may be movably coupled.

Preferably, a stopper 230 for restricting the movement range of the first support frame 41 is provided on the upper surface of the base 200. The stopper 230 is preferably installed at a first position corresponding to the operating position and at a second position corresponding to the maintenance position, respectively.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary,

For example, in the first embodiment of the present invention, the inner brackets 141, 142, 151, 152, 153, 154, 155, 156 installed inside the first and second rotary plates 21, 22 are mounted on the sliding brackets 141, 142, 151, 152, 153, 154, 155, (111, 112, 121, 122, 123, 124, 125, 126), but the present invention is not limited thereto. Therefore, each internal device can be movably coupled to the guide means directly.

As another example, in the second and third embodiments of the present invention, the first support frame 41 is linearly or rotationally moved while securing the position of the second support frame 42 to secure a work space . However, the present invention is not limited to this, and the first support frame 41 may be fixed and the second support frame 42 may be movably installed, or both the first and second support frames 41 may be movably installed .

As another example, in the dual head type radiotherapy apparatus 100, 100a, 100b according to the embodiment of the present invention, the first rotating plate 21 and the second rotating plate 22 are independently operated by separate rotation driving means can do. That is, the first rotating plate 21 and the second rotating plate 22 may rotate at different speeds or may rotate in different directions. Also, one can rotate only the other while stopped.

It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. I will do it.

21: first rotating plate 22: second rotating plate
41: first support frame 42: second support frame
43: first fixing member 44: second fixing member
60a: first radiation head 60b: second radiation head
70a: first photographing unit 70b: second photographing unit
71a: first detector 71b: second detector
81: Detector 83: Beam stopper
100, 100a, 100b: dual head type radiotherapy apparatus
111, 112, 121, 122, 123, 124, 125,
141, 142, 151, 152, 153, 154, 155, 156:
171, 172: stopper 200: base
210: guide means 220: movable block
230: stopper 240: rotating shaft
250: Casters

Claims

A first rotating plate and a second rotating plate disposed parallel to each other;
A first support frame rotatably supporting the first rotation plate;
A second support frame rotatably supporting the second rotation plate;
First guide means formed on the inner side of the first rotation plate and arranged in a direction from the rotation center of the first rotation plate toward the edge;
Second guide means formed on the inner side of the second rotation plate and arranged in the direction from the rotation center of the second rotation plate toward the edge;
A first radiation head movably coupled to the first guide means;
A second radiation head movably coupled to the second guide means,
A dual head type radiotherapy device

The method according to claim 1,
The first and second guide members are coupled to a first sliding bracket and a second sliding bracket, respectively. The first radiation head and the second radiation head are respectively connected to the first sliding bracket and the second sliding bracket, Wherein the dual head type radiotherapy apparatus

The method according to claim 1,
The first radiation head and the second radiation head move to an inner operation position or an outer maintenance position along the first guide means and the second guide means, respectively,
Wherein the first rotation plate is provided with fixing means for fixing the position of the first radiation head at the operation position or the maintenance position,
Wherein the second rotary plate is provided with fixing means for fixing the position of the second radiation head at the operation position or the maintenance position.

The method according to claim 1,
Rotation control means for rotating the first rotation plate or the second rotation plate to maintain the first guide means or the second guide means in a horizontal state for maintenance;
And a brake device for preventing rotation of the first rotary plate or the second rotary plate after the first guide means or the second guide means is in a horizontal state,
A dual head type radiotherapy device

A first rotating plate and a second rotating plate disposed parallel to each other;
A first support frame rotatably supporting the first rotary plate and movably coupled to a guide means formed on a base;
A second support frame rotatably supporting the second rotation plate and fixed to the base;
A first radiation head coupled to an inner surface of the first rotating plate;
And a second radiation head coupled to an inner surface of the second rotating plate,
Wherein the guide means is disposed in parallel to the rotation axis direction of the first rotating plate and the second rotating plate.

A first rotating plate and a second rotating plate disposed parallel to each other;
A first support frame rotatably supporting the first rotation plate and rotatably coupled to the base by a vertical rotation axis;
A second support frame rotatably supporting the second rotation plate and fixed to the base;
A first radiation head coupled to an inner surface of the first rotating plate;
And a second radiation head coupled to an inner surface of the second rotating plate,
A dual head type radiotherapy device

7. The method according to any one of claims 1 to 6,
And a connecting rod having one end coupled to the first rotating plate and the other end coupled to the second rotating plate,
A groove is formed at one end or the other end of the connecting rod for inserting an edge of a corresponding first rotating plate or a second rotating plate and the first rotating plate or the second rotating plate inserted in the groove is rotatable without being fixed to the connecting rod Dual head type radiotherapy device