KR102640269B1 - Radiation Therapy Device for Breast Cancer - Google Patents

Abstract

A radiation irradiation device for breast cancer treatment is provided. The radiation irradiation device for breast cancer treatment according to an embodiment of the present invention includes a body portion 10 having a first opening 12, installed in the first opening 12 of the body portion 10, and a second opening ( 21) formed on the support part 20, a shielding part 30 installed in the first opening 12 and formed on both sides of the support part 20 across the second opening 21, and the body part ( 10), a seating portion 40 that can be aligned with the second opening 21 and has a third opening 41 through which the breast is inserted, the support portion 20, and the shielding portion 30. ) is movably installed at the lower part of the irradiation unit 50 and applies one linear beam having a predetermined width to a predetermined irradiation area of the breast on a predetermined trajectory, and a non-coplanar plane with respect to the irradiation unit 50 ( It may include an imaging unit 60 installed on a non-planar surface.

Description

Radiation Therapy Device for Breast Cancer}

The present invention relates to a device that can treat breast cancer in the prone position.

Breast cancer is the second most common cancer among women in Korea, and it is reported that more than 1 million women worldwide develop breast cancer every year.

Breast conservation surgery is the main method of breast cancer treatment, and radiation therapy to the breast after breast conservation surgery is an essential treatment to reduce the local recurrence rate. In addition, radiation therapy is performed even after some total mastectomy when the tumor is large or there is a lot of lymph node metastasis.

Previously, radiation therapy had been performed in the supine position, with the abdomen facing upward, but a problem arose where the breasts were tilted downward due to gravity, which caused the skin to overlap due to distortion of the breast shape and decreased breast density. changes, and there were problems with radiation therapy, such as heterogeneity in radiation dose.

Therefore, recently, a method of performing radiation therapy in the prone position, where the abdomen faces downward, has been applied. This method is a way to better detect breast cancer in MRI for breast cancer screening. Similar to the method of performing an MRI examination in the prone position, radiation therapy is also performed in the prone position.

U.S. Patent Document No. 8788017 relates to a breast cancer treatment device and method, and proposes a technology for performing three-dimensional imaging of tumor tissue and then irradiating radiation to the breast tumor tissue of a patient seated on a couch. Thermoplastic plastic cups are used to maintain the position and shape of the breast, but there is a problem that accurate fixation is difficult because thermoplastic materials can be fluid at body temperature (35~37˚C), and the shape is maintained by suctioning the breast with negative pressure. There is an inconvenience that must be done. In addition, because radiation is irradiated intensively to one point using multiple radiation sources, it is not suitable for treatment that requires radiation irradiation to the entire breast area, including the area where breast-conserving surgery was performed.

Japanese Patent Publication No. 2010-075338 relates to a breast imaging and treatment device with an X-ray treatment function, and presents a technology in which breast imaging and treatment are performed on the same plane (co-planar). Although the X-ray treatment system can treat tumor tissue with at least two degrees of freedom, the X-ray imaging device and the There is a disadvantage in that the movement trajectories of the imaging device and the treatment device partially overlap and they have a common rotation axis, making it impossible to apply X-rays at various angles.

US Patent Document No. 8788017 (2014.07.22) Japanese Patent Publication No. 2010-075338 (2010.04.08)

The present invention was created to solve the above problems.

Specifically, the purpose of the present invention is to provide a device that solves the problem of the prior art in which the treatment object is fixed to the support and the treatment is not precise due to movement of the treatment object during the radiation treatment process.

In addition, the purpose of the present invention is to provide a device in which the imaging unit and the irradiation unit are installed on a non-planar plane, thereby minimizing interference between the imaging light and the treatment light emitted from each device.

In addition, the purpose of the present invention is to provide a device that can apply treatment light at a plurality of incident angles to the irradiation area and minimize radiation exposure to the lungs, heart, etc., other body areas excluding the irradiation area. .

Additionally, the present invention aims to provide a control method for the above-described device.

One embodiment of the present invention for solving the above problems includes a body portion 10 having a first opening 12, installed in the first opening 12 of the body portion 10, and a second opening 12. A support part 20 having an opening 21, a shielding part 30 installed in the first opening 12 and formed on both sides of the support part 20 across the second opening 21, and the body. A seating portion 40 that is movably installed relative to the portion 10 and is aligned with the second opening 21 and has a third opening 41 through which a breast is inserted, the support portion 20, and the shielding portion. An irradiation unit 50 that is movably installed at the lower part of 30 and applies one linear beam having a predetermined width to a predetermined irradiation area of the breast on a predetermined trajectory and a non-identical irradiation unit 50. It is installed on a non-planar surface, is capable of rotational movement in a longitudinal direction perpendicular to the support portion 20, and rotates around a second rotational axis different from the first rotational axis in the rotational movement of the irradiation unit 50. Provided is a radiation irradiation device for breast cancer treatment, including a movable imaging unit 60.

In one embodiment, a first guide rail 13 extending in a first direction is further installed in the first opening 12, and the support portion 20 is formed on the first guide rail 13. , it may be possible to move in a first direction toward the imaging unit 60 and in a second direction opposite to the first direction.

In one embodiment, the seating portion 40 may be movable between a first position inclined at a predetermined angle with respect to the ground and a second position where the second opening 21 and the third opening 41 are aligned. You can.

In one embodiment, it further includes one or more leg portions 70 extending from the body portion 10, wherein the leg portion 70 includes a first leg portion 71 and the first leg portion 71. ) and may include a second leg portion 72 having a thickness thinner than the first leg portion 71.

In one embodiment, the second leg portion 72 is attached to the first leg portion 71 to enable adjustment of the protruding length of the second leg portion 72 with respect to the first leg portion 71. Can be installed.

In one embodiment, the lower part of the body 10 further includes a second guide rail 14 extending to the shield 30 so that the distance from the second opening 21 is the same; , the irradiation unit 50 may be movably installed on the second guide rail 14.

In one embodiment, the shield 30 is formed to be inclined upward at a predetermined angle with respect to the support part 20, and the second guide rail 14 may extend to the shield 30. there is.

In one embodiment, the angle formed by the shielding part 30 with respect to the support part 20 may be 15 degrees to 45 degrees.

In one embodiment, an aperture 22 capable of adjusting the size of the second opening 21 may be further included.

In one embodiment, the portion of the aperture 22 that contacts the second opening 21 may be formed of an elastic material.

In one embodiment, the seating portion 40 is further formed with a fourth opening 42 into which the face is inserted, and when the seating portion 40 is in the first position, the support portion 20 is further formed with a fourth opening 42 into which the face is inserted. 4 A display 23 aligned with the opening 42 may be formed.

In one embodiment, the body portion 10, the support portion 20, the shielding portion 30, and the seating portion 40 may be formed of a material capable of shielding radiation.

In one embodiment, the imaging unit 60 may be a CBCT (Cone Beam Computed Tomography) capable of imaging while rotating in a horizontal direction perpendicular to the support unit 20.

In one embodiment, one linear beam applied from the irradiation unit 50 may have a width that covers at least the entire area of the breast.

According to the present invention described above, the following effects are achieved.

In the present invention, since the treatment target is fixed to the support, the problem of the conventional radiation therapy device in which the treatment is not precise due to the movement of the treatment target during the radiation treatment process is solved.

In addition, the present invention has the advantage that the position and shape of the breast protruding from the bottom of the support unit are the same during imaging by the imaging unit and during treatment by the irradiation unit, so that light can be accurately applied to the irradiation area.

In addition, the present invention is an interference phenomenon that occurs as the imaging unit and the irradiation unit are installed on a non-planar plane and the movement trajectories overlap, or an interference phenomenon between the imaging light and the treatment light emitted from each device. This is minimized.

In addition, the present invention can apply light at a plurality of incident angles to the irradiation area, while minimizing radiation exposure to other body areas excluding the irradiation area.

In addition, the present invention solves the disadvantage of the prior art in which one beam with a predetermined width is applied from one irradiation unit and the beam is concentrated to one point through multiple radiation sources. In particular, it is possible to treat the entire breast area, while achieving the effect that the radiation dose applied to the breast is more homogeneous than in the supine position. Since the application of radiation to tissues other than the breast is minimized (i.e., the amount of radiation exposure to other tissues such as the heart, lungs, and esophagus is minimized), the probability of developing secondary cancers such as lung cancer and esophageal cancer due to radiation treatment is reduced. It can be.

Figure 1 is a front perspective view for explaining a radiation irradiation device for breast cancer treatment according to an embodiment of the present invention.
Figure 2 is a rear perspective view of the radiation irradiation device for breast cancer treatment of Figure 1.
Figure 3 is a perspective view to explain how the support part and the seating part are aligned in the radiation irradiation device for breast cancer treatment of Figure 1.
FIG. 4 is a schematic longitudinal cross-sectional view illustrating how light is applied in the radiation irradiation device for breast cancer treatment of FIG. 1.
FIG. 5 is a schematic cross-sectional view illustrating how light is applied in the radiation irradiation device for breast cancer treatment of FIG. 1.
FIG. 6 is a diagram illustrating the rotation of the support portion in the radiation irradiation device for breast cancer treatment of FIG. 1.
FIG. 7 is a block diagram schematically explaining the radiation irradiation device for breast cancer treatment of FIG. 1.
Figure 8 is a flowchart for explaining a control method of a radiation irradiation device according to the first embodiment of the present invention.
Figure 9 is a flowchart for explaining a control method of a radiation irradiation device according to a second embodiment of the present invention.
10 and 11 are diagrams to explain how light is irradiated from an irradiation unit in a radiation irradiation device for breast cancer treatment according to an embodiment of the present invention.

In some cases, in order to avoid ambiguity of the concept of the present invention, well-known structures and devices may be omitted or may be shown in block diagram form focusing on the core functions of each structure and device.

Throughout the specification, when a part is said to “comprise or include” a certain element, this means that it does not exclude other elements but may further include other elements, unless specifically stated to the contrary. do. In addition, terms such as "... unit", "... unit", and "module" used in the specification refer to a unit that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software. there is. In addition, the terms "a or an", "one", "the", and similar related terms are used in the context of describing the invention (particularly in the context of the claims below) as used herein. It may be used in both singular and plural terms, unless indicated otherwise or clearly contradicted by context.

In describing embodiments of the present invention, if a detailed description of a known function or configuration is judged to unnecessarily obscure the gist of the present invention, the detailed description will be omitted. The terms described below are terms defined in consideration of functions in the embodiments of the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, the definition should be made based on the contents throughout this specification.

Hereinafter, the present invention will be described in detail with reference to the attached drawings.

Hereinafter, the term "irradiation area" refers to an area that requires radiation treatment, including benign or malignant tumors, or an area that requires lowering recurrence through radiation therapy, including the area where surgery such as breast-conserving surgery or total mastectomy was performed. do.

Hereinafter, the term “light” refers to light applied to the irradiation area, and is a concept that includes photon beams and electron beams.

Hereinafter, the term “photography light” refers to light applied to an object to be photographed for obtaining medical images, and is a concept that includes photon beams, electron beams, and particle beams (neutrons or protons).

The radiation irradiation device 100 for breast cancer treatment according to an embodiment of the present invention includes a body portion 10, a support portion 20, a shielding portion 30, a seating portion 40, an irradiation portion 50, and an imaging portion 60. , may include a leg unit 70, a control unit 80, an input unit 90, and a driving unit (M).

The body portion 10 is a part that forms the overall frame of the radiation irradiation device 100 for breast cancer treatment and may include a first frame 11 and a second frame 15.

A first opening 12 is formed penetrating inside the first frame 11.

A first guide rail 13 may be formed to extend in a predetermined direction in the first opening 12, and a support portion 20 may be provided along the first guide rail 13 in a first direction and in a direction opposite to the first direction. It is possible to move between 2 directions.

The second frame 15 is formed to be inclined downward from the first frame 11, and a guide rail 15a for movement of the seating portion 40 is formed on the second frame 15.

A connecting part 16 connected to the seating part 40 may be installed on the guide rail 15a, and the connecting part 16 is electrically connected to the driving part M, and the seating part ( 40) movement can occur. A detailed explanation of this will be provided later.

A second guide rail 14 on which the irradiation unit 50 is installed may be formed at the lower part of the body unit 10. The second guide rail 14 may be formed to extend at the same distance from the second opening 21 formed in the support portion 20, which will be described later, that is, it may be formed to extend along the circumferential direction.

The support part 20 is installed in the first opening 12 and supports the seating part 40.

A second opening 21 is formed through the support part 20, and the breast is inserted through the second opening 21, so that the irradiation area is irradiated by light applied from the irradiation unit 50 installed at the lower part of the support part 20. Radiation treatment is possible.

In addition, the support part 20 may be installed on the first guide rail 13 and can move in the forward and backward directions along the first guide rail 13 by the driving part M, and thus the support part 20 It is possible to align the breast inserted into the second opening 21 and the irradiation unit 50. As the support portion 20 can move in the front and rear directions (first and second directions), it has the advantage of being able to apply light to the entire irradiation area.

An aperture 22 capable of adjusting the size of the second opening 21 may be provided inside the support portion 20. The aperture 22 serves to compress the subcutaneous fat of the breast in order to maintain the same position and shape of the breast including the irradiation area during imaging by the imaging unit 60 and light irradiation by the irradiation unit 50. Do it. In addition, a portion of the aperture 22 is made of an elastic material and a radiation-shielding material (for example, carbon), thereby minimizing the penetration of radiation applied from the irradiation unit 50 into tissues outside the irradiation area. .

Since the size of the breast is different for each treatment subject, it is necessary to adjust the size of the second opening 21 by the aperture 22, and the degree of opening of the aperture 22 is determined by measuring the medical image obtained from the imaging unit 60. Alternatively, it may be determined through breast size data pre-entered into the input unit 90.

In another embodiment, a display 23 may be formed on the support portion 20, and the display 23 may be aligned with the third opening 42 of the seating portion 40, so that the treatment target can be treated by the irradiation portion 50. Along with radiation treatment, it is also possible to view images output from the display 23 through the third opening 42.

In another embodiment, it is possible for the support 20 itself to rotate relative to the body 10 (see Figure 6). Specifically, the support part 20 can rotate 360 degrees with respect to the body part 10, and the irradiation part 50 moves the support part 20 in a transverse direction perpendicular to the support part 20 along the second guide rail 14. ) may be able to rotate 270 degrees based on the lower side. Accordingly, light may be incident at various incident angles with respect to the irradiation area.

The shielding part 30 is installed in the first opening 12 and is formed on both sides of the support part 20 with the second opening 21 of the support part 20 in between.

Referring to FIGS. 1 and 5 , the shielding portion 30 may be formed to be inclined upward at a predetermined angle with respect to the support portion 20 .

The angle at which the shielding part 30 is inclined upward with respect to the support part 20 may be 15 degrees to 45 degrees, and therefore the angle between one shielding part and the other shielding part is 210 degrees to 270 degrees based on the lower side. It could be degrees.

The above-described second guide rail 14 may extend to the shielding portion 30, that is, the second guide rail 14 extends at an angle of 210 to 270 degrees with respect to the lower side of the support portion 20. It can be formed, and the irradiation unit 50 installed on the second guide rail 14 can also apply light to the irradiation area while moving in the range of 210 to 270 degrees based on the lower side of the support part 20.

A guide groove 31 for rotation of the second guide rail 14 may be formed in the lower part of the shield 30 (see FIGS. 1, 3, and 5). By the driving unit M, the second guide rail 14 can rotate around the second opening 21 along the guide groove 31. The irradiation unit 50 can move along the second guide rail 14, which allows light to be incident on the irradiation area at various incident angles.

The seating portion 40 is a portion installed on the second frame 15 of the body portion 10 and may include a third opening 41, a fourth opening 42, and a handle 43.

The seating portion 40 is a configuration on which the treatment target is first mounted during the irradiation process by the radiation irradiation device 100 for breast cancer treatment. In the case where the seating part 40 is omitted in the conventional breast cancer treatment device, a lot of inconvenience has been caused in order to mount the treatment object on the support part 20, which is generally formed at a height of 80 cm to 120 cm, and the second part of the support part 20 In order to solve the disadvantage that the breast is not properly inserted into the opening 21, in the embodiment of the present invention, a seating unit 40 is configured, and after inducing a treatment posture in the seating unit 40, the seating unit 40 By allowing the treatment target mounted on the support portion 20 to be mounted as is, more accurate radiation treatment was possible.

Referring to FIG. 1, the seating portion 40 is connected to the connecting portion 16 and can be moved along the guide rail 15a formed in the second frame 15 by the driving portion M. More specifically, A first position forming a predetermined angle with respect to the ground (more specifically, a position where the angle formed with the ground is a vertical angle) and the seating part 40 are mounted on the support part 20 to open the second opening 21 and the third opening 21. It is possible to move between the second positions in which the openings 41 are aligned.

Initially, the seating unit 40 is positioned at the first position, and the treatment target is mounted on the seating unit 40 so that the breast is inserted into the third opening 41.

Next, the driving unit M moves the seating unit 40 so that the seating unit 40 is placed on the support unit 20 and the second opening 21 and the third opening 41 are aligned. During the movement of the seating unit 40, the treatment subject may separate from the seating unit 40, so a handle 43 is provided on the upper part of the seating unit 40, and the treatment subject holds the handle 43. Separation from the seating portion 40 can be prevented.

A fourth opening 42 is formed between the third opening 41 and the handle 43. The fourth opening 42 is a portion into which the face of the treatment target is inserted, and the seating portion 40 is in the second position. When aligned with the display 23 formed on the support portion 20. Accordingly, the treatment subject can view the image output from the display 23 through the fourth opening 42.

The irradiation unit 50 is installed on the second guide rail 14 and applies treatment light toward a predetermined irradiation area of the treatment target. As an example, it may be a linear accelerator (LINAC) that applies high energy X-rays.

The irradiation unit 50 accelerates particles in the X band and generates a beam to reach the irradiation area. The irradiation unit 50 may include an electron gun, a magnetron, a pulse modulator, a linear accelerator control unit, and a waveguide.

An electron gun is a device that generates electrons in an electron tube, accelerates and focuses the generated electrons to form an electron beam, and controls the intensity of the electron beam according to an input signal. The electron gun may include a cathode that generates electrons and a grid that controls the generation of electrons. Whether or not the cathode generates electrons can be controlled according to a control pulse signal applied to the grid, and the cathode generates electrons. The collected electrons are provided to the waveguide and can be emitted.

A magnetron oscillator is an electronic vacuum tube for oscillating high-frequency waves (micro-waves). When high-frequency energy generated from the magnetron oscillator is applied to a waveguide, a bunching phenomenon occurs due to the interaction between the electrons or electron beams introduced into the waveguide and the high-frequency energy. Electrons can be accelerated to high speeds.

The pulse modulator generates a pulse signal that controls the electron gun grid and a pulse signal that drives the magnetron oscillator based on information about the pulse signal form received from the linear accelerator control unit, and sends the generated control pulse signal and driving pulse signal to the linear accelerator control unit. Based on the synchronization signal from, it can be applied to the electron gun grid and magnetron oscillator, respectively.

The linear accelerator control unit determines the form of the control and drive pulse signals generated by the pulse modulator based on the output radiation dose information set according to the irradiation plan, and generates a synchronization signal for phase or frequency adjustment between the control and drive pulse signals. You can.

A multi-leaf collimator (MLC) may be mounted on one end of the irradiation unit 50, and the intensity of the beam can be adjusted through the multi-leaf collimator, and it is also possible to adjust the beam pattern.

The irradiation unit 50 is movable on the second guide rail 14 by the driving unit M, and the second guide rail 14 extends at an angle of 210 to 270 degrees with respect to the lower side of the support unit 20. Because it is formed, the irradiation part 50 can also apply light to the irradiation area at an angle of 210 to 270 degrees based on the lower side of the support part 20.

That is, the irradiation area including the area where surgery such as breast conservation or total mastectomy was performed can have multiple incident angles, and the conventional technology applies light while rotating 360 degrees in a position parallel to the support 20. When compared, high treatment effects can be achieved.

While in the existing radiation irradiation device for breast cancer treatment, light was irradiated within a range of 180 degrees based on the lower side of the support portion 20, in the present invention, light was irradiated within a range of 210 to 270 degrees based on the lower side of the support portion 20. Investigation is possible. In particular, more effective treatment is possible because light can be irradiated in a range of 180 to 270 degrees, which can enter the radiation area backwards.

Additionally, the irradiation unit 50 can control the width of the beam applied to the irradiation area by controlling the multi-leaf collimator at the tip. That is, as shown in FIG. 10, it is possible to apply broad irradiation that irradiates a beam with a cross section larger than the cross section of the irradiated area, more preferably, light with a width that covers the entire area of the breast, as shown in FIG. 11. As described above, in another embodiment, local irradiation is possible by irradiating a beam with a cross section smaller than the cross section of the irradiation area.

The present invention addresses the disadvantage of non-homogeneous radiation dose in the prior art, in which one beam with a predetermined width is applied from one irradiation unit 50 and the beam is concentrated to one point through multiple radiation sources, and treatment of the entire area is achieved. Difficult shortcomings are resolved.

In the present invention, the beam applied from the irradiation unit 50 is minimized from reaching tissues other than breast tissue. That is, the irradiation plan is set so that the beam applied from the irradiation unit 50 does not reach tissues other than the breast, and the body 20 and the support part 40 are formed of a material capable of shielding radiation, so that the irradiation unit 50 The beam applied from the beam allows treatment of the entire breast area, while achieving the effect that the radiation dose applied to the breast is more homogeneous than in the supine position. Since the application of radiation to tissues other than the breast is minimized (i.e., the amount of radiation exposure to other tissues such as the heart, lungs, and esophagus is minimized), the probability of developing secondary cancers such as lung cancer and esophageal cancer due to radiation treatment is reduced. It can be.

The imaging unit 60 is a part that acquires medical images of body areas including not only the breast, but also the heart, lungs, mediastinum, etc., in order to determine the irradiation area. Referring to FIG. 1, the imaging unit 60 is installed on a non-planar plane with the irradiation unit 50, and more specifically, is installed at a predetermined distance in the first direction with respect to the irradiation unit 50. You can. The predetermined distance may be 36cm to 44cm, but is not limited thereto.

Here, non-coplanar means that the irradiation unit 50 and the imaging unit 60 are not located on the same plane in the moving direction (first direction or second direction) of the support unit 20.

The imaging unit 60 includes a projector 61 that projects The density of internal organs is determined, and a detailed internal cross-section is reconstructed and output as an image. For example, the imaging unit 60 may be a CBCT (Cone Beam Computed Tomography) capable of photographing from a 360-degree angle.

In the present invention, both the irradiation unit 50 and the imaging unit 60 include a configuration for applying X-rays. In addition, the X-ray application configuration of the irradiation unit 50 and the imaging unit 60 applies X-rays toward the treatment target while moving in a predetermined angle range by the driving unit M.

Meanwhile, in a treatment device equipped with both the irradiation unit 50 and the imaging unit 60, if the irradiation unit 50 and the imaging unit 60 are installed on the same plane, their movement trajectories may overlap. Therefore, collisions may occur during movement on each movement trajectory, and interference may occur during the application of imaging and treatment light, making precise imaging and treatment difficult.

Therefore, in the present invention, the irradiation unit 50 and the imaging unit 60 are installed on a non-same plane so that the respective movement trajectories of the irradiation unit 50 and the imaging unit 60 do not overlap. Therefore, the movement trajectories overlap. It can prevent collisions and interference caused by

More specifically, the imaging unit 60 may be provided in a hollow cylindrical shape, and the support unit 20 may be inserted into the hollow to perform imaging. While maintaining the positions in which the projector 61 and the detector 62 face each other, they rotate inside the cylinder to obtain a medical image of the area including the breast at a 360-degree angle.

The leg portion 70 extends downward from the body portion 10 and supports the body portion 10.

Referring to FIG. 1, the leg portion 70 includes a first leg portion 71 and a second leg portion 72, and the second leg portion 72 has a thickness thinner than the first leg portion 71. As it is formed, the protruding length of the first leg portion 71 can be adjusted. As an example, the second leg portion 72 may be able to adjust the protrusion length of the first leg portion 71 in a telescopic manner.

The above-described protrusion length adjustment can be performed by the driving part M, through which tilting of the support part 20 is possible.

To be more specific, the protruding length of the second leg portion 72 of the two leg portions 70 provided on the left side and the protruding length of the second leg portion 72 of the two leg portions 70 provided on the right side If is not the same and is controlled so that there is a difference in the protrusion length, the effect of tilting the support part 20 itself at a predetermined angle with respect to the longitudinal direction of the breast cancer treatment device 100 can be achieved.

In another embodiment, the protruding length of the second leg portion 72 of the two leg portions 70 provided at the front and the protruding length of the second leg portion 72 of the two leg portions 70 provided at the rear are Instead of being the same, the protrusion length may be controlled to be different, thereby achieving the effect of tilting the support portion 20 at a predetermined angle with respect to the lateral direction of the breast cancer treatment device 100.

By adjusting the protruding length of the leg portion 70, the tilt angle of the support portion 20 with respect to the ground may be 5 to 10 degrees, and accordingly, treatment light can be applied at various angles.

The control unit 80 is a part that controls the radiation device 100 for breast cancer treatment and may be a microcontroller unit (MCU) with an arithmetic function, and includes an irradiation area setting unit 81 and an operation control unit ( 82) may be included.

The radiation area setting unit 81 sets the radiation area according to a predetermined method from the medical image acquired by the imaging unit 60. For example, an area set through the input unit 90 may be determined as the radiation area, and an area larger than the above-mentioned area and including an area where breast conservation surgery or total mastectomy was performed may be determined as the radiation area.

The operation control unit 82 is a part that controls the operation of the radiation irradiation device 100 for breast cancer treatment, and includes the support unit 20, the seating unit 40, and the support unit 20 to obtain a medical image of the treatment target by the imaging unit 60. The operation of the imaging unit 60 can be controlled, and the operation of the support unit 20, the irradiation unit 50, and the leg unit 70 can be controlled so that light is applied to the irradiation area set by the irradiation area setting unit 81. can do. A detailed description of the operation control of each component by the operation control unit 82 will be described later.

The input unit 90 may receive commands or data to be used in the radiation irradiation device 100 for breast cancer treatment from the outside. The input unit 90 may include, for example, a microphone, a mouse, a keyboard, a touch panel, or a digital pen. For example, when an operation start command is input to the input unit 90, the support unit 20 of the seating unit 40 sequentially Seating, imaging by the imaging unit 60, and treatment processes by the irradiation unit 50 can be performed, and it is also possible to set an irradiation area on the medical image acquired by the imaging unit 60 through the input unit 90. .

The driving unit (M) is connected to the support unit 20, the seating unit 40, the irradiation unit 50, the imaging unit 60, and the leg unit 70, and uses power energy to cause mechanical displacement or displacement of each connected component. It is a configuration that converts to stress. A hydraulic cylinder type or a hydraulic motor type may be applied to enable linear movement and rotational movement, but it is not limited thereto and various conventional driving methods may be applied.

Next, the control method of the radiation irradiation device according to the first embodiment of the present invention will be described in more detail with reference to FIG. 8.

An operation start command is input by the input unit 90 (S11), and the operation control unit 82 opens the aperture 22 until a predetermined pressure is applied to the object (breast) inserted into the second opening 21. Adjust the degree (S12). The degree of opening of the aperture 22 may vary depending on the size of the breast inserted into the second opening 21.

Next, the operation control unit 82 controls the movement of the support unit 20 so that the photographing unit 60 and the photographing target are aligned (S13). Accordingly, the object placed on the support unit 20 is inserted into the hollow of the imaging unit 60.

Next, X-rays are applied toward the target from the projector 61 of the imaging unit 60, and the The projector 61 can apply X-rays toward a target at a 360-degree angle, and more specifically, can apply X-rays in the form of a cone beam.

Next, the control unit 80 determines the density of the internal organs by analyzing the intensity of the

Next, the radiation area setting unit 81 sets the radiation area according to a predetermined method from the generated medical image (S15). For example, an area set through the input unit 90 may be determined as the irradiation area, and an area larger than the above-mentioned area and including an area where breast-conserving surgery or total mastectomy was performed may be determined as the irradiation area.

Once the irradiation area is determined, the operation control unit 82 controls the movement of the support unit 20 so that the irradiation area and the irradiation unit 50 are aligned (S16). The relative position of the radiation area is different for each treatment target, and it is necessary to control the movement of the support unit 20 so that the light applied from the radiation unit 50 reaches the radiation area.

When the alignment of the irradiation unit 50 and the irradiation area is completed, the operation control unit 82 controls the movement of the irradiation unit 50 so that there are a plurality of angles formed by the irradiation unit 50 with respect to the ground (S17).

That is, by controlling the movement of the irradiation unit 50 along the second guide rail 14, the irradiation unit 50 is controlled to move at an angle of 210 to 270 degrees with respect to the lower side of the support part 20, thereby controlling the irradiation. Light may be incident at various incident angles with respect to the area.

The operation control unit 82 may also adjust the angle formed by the support unit 20 with respect to the ground by controlling the protruding length of the second leg unit 72 with respect to the first leg unit 71 (S18). 2 The second guide rail 14 is controlled to rotate along the guide groove 31 around the opening 21 (S19), and the support portion 20 itself is controlled to rotate with respect to the body portion 10 (S20) ), can be controlled so that light is incident on the irradiation area at various incident angles.

When the predetermined irradiation time elapses, the degree of opening of the aperture 22 is controlled so that the pressure applied to the object (breast) inserted into the second opening 21 is released (S21), and through this, the control is completed.

Next, the control method of the radiation irradiation device according to the second embodiment of the present invention will be described in more detail with reference to FIG. 9.

Before the treatment object is mounted on the seating unit 40, the seating unit 40 is positioned at a position where the third opening 41 and the second opening 21 are not aligned, more specifically at a predetermined angle with the ground. It is located in the first position.

When an operation start command is input by the input unit 90 (S31), the operation control unit 82 controls the operation of the seating unit 40 so that the third opening 41 and the second opening 21 are aligned. , the seating part 40 is moved to the second position placed on the support part 20 (S32).

Next, the operation control unit 82 adjusts the degree of opening of the aperture 22 until a predetermined pressure is applied to the object (breast) inserted into the second opening 21 (S33). The degree of opening of the aperture 22 may vary depending on the size of the breast inserted into the second opening 21.

Next, the operation control unit 82 controls the movement of the support unit 20 so that the photographing unit 60 and the photographing target are aligned (S34). Accordingly, the object placed on the support unit 20 is inserted into the hollow of the imaging unit 60.

Next, X-rays are applied toward the target from the projector 61 of the imaging unit 60, and the The projector 61 can apply X-rays toward a target at a 360-degree angle, and more specifically, can apply X-rays in the form of a cone beam.

Next, the control unit 80 determines the density of the internal organs by analyzing the intensity of the

Next, the radiation area setting unit 81 sets the radiation area according to a predetermined method from the generated medical image (S36). For example, an area set through the input unit 90 may be determined as the radiation area, and an area larger than the above-mentioned area and including an area where breast conservation surgery or total mastectomy was performed may be determined as the radiation area.

Once the irradiation area is determined, the operation control unit 82 controls the movement of the support unit 20 so that the irradiation area and the irradiation unit 50 are aligned (S37). The relative position of the radiation area is different for each treatment target, and it is necessary to control the movement of the support unit 20 so that the light applied from the radiation unit 50 reaches the radiation area.

When the alignment of the irradiation unit 50 and the irradiation area is completed, the operation control unit 82 controls the movement of the irradiation unit 50 so that there are a plurality of angles formed by the irradiation unit 50 with respect to the ground (S38).

That is, by controlling the movement of the irradiation unit 50 along the second guide rail 14, the irradiation unit 50 is controlled to move at an angle of 210 to 270 degrees with respect to the lower side of the support part 20, thereby controlling the irradiation. Light may be incident at various incident angles with respect to the area.

The operation control unit 82 may also control the protrusion length of the second leg part 72 with respect to the first leg part 71, thereby adjusting the angle formed by the support part 20 with respect to the ground, and the second opening ( 21), the second guide rail 14 is controlled to rotate along the guide groove 31 (S39), and the support portion 20 itself is controlled to rotate with respect to the body portion 10 (S40). Light can be controlled to be incident at various incident angles to the area.

When the predetermined irradiation time elapses, the degree of opening of the aperture 22 is controlled so that the pressure applied to the object (breast) inserted into the second opening 21 is released (S41), and the seating portion 40 is opened to the first opening 21. Control is completed by controlling the movement of the seating portion 40 to be positioned (S42).

The control method according to an embodiment of the present invention described above may be implemented in the form of program instructions that can be executed through various computer means and recorded on a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc., singly or in combination. Program instructions recorded on the medium may be those specifically designed and configured for the present invention, or may be known and usable by those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic media such as floptical disks. -Includes optical media (magneto-optical media) and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, etc. Examples of program instructions include machine language code, such as that produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter, etc. The hardware devices described above may be configured to operate as one or more software modules to carry out the operations of the present invention, and vice versa.

Above, the present invention has been described with reference to the embodiments shown in the drawings so that those skilled in the art can easily understand and reproduce the present invention, but these are merely illustrative examples, and various modifications and equivalent alternatives can be made by those skilled in the art from the embodiments of the present invention. It will be appreciated that embodiments are possible. Therefore, the scope of protection of the present invention should be determined by the claims.

10: body part
11: first frame
12: first opening
13: first guide rail
14: Second guide rail
15: second frame
15a: Guide rail
16: Connection part
20: support part
21: second opening
22: Aperture
23: display
30: shielding part
31: Guide groove
40: Seating part
41: third opening
42: fourth opening
43: handle
50: Investigation Department
60: Filming Department
61: Projector
62: detector
70: Leg part
71: first leg portion
72: second leg portion
80: control unit
81: Survey area setting unit
82: motion control unit
90: input unit
100: Irradiation device
M: driving part

Claims (14)

A body portion 10 having a first opening 12 formed thereon;
A support portion (20) installed in the first opening (12) of the body portion (10) and having a second opening (21);
a shielding portion (30) installed in the first opening (12) and formed on both sides of the support portion (20) with the second opening (21) between them;
a seating portion 40 that is movably installed relative to the body portion 10, is aligned with the second opening 21, and has a third opening 41 through which a breast is inserted;
an irradiation unit 50 that is movably installed below the support unit 20 and the shielding unit 30 and applies one linear beam having a predetermined width to a predetermined irradiation area of the breast on a predetermined trajectory; and
It is installed on a non-planar plane with respect to the irradiation unit 50, is capable of rotational movement in a longitudinal direction perpendicular to the support unit 20, and is a first rotation axis in the rotational movement of the irradiation unit 50. and an imaging unit 60 capable of rotational movement about a second rotation axis different from the other.
Irradiation device for breast cancer treatment.
According to paragraph 1,
A first guide rail 13 extending in a first direction is further installed in the first opening 12,
The support portion 20 is formed on the first guide rail 13 and is movable in a first direction toward the photographing unit 60 and a second direction opposite to the first direction.
Irradiation device for breast cancer treatment.
According to paragraph 1,
The seating portion 40 is movable between a first position inclined at a predetermined angle with respect to the ground and a second position where the second opening 21 and the third opening 41 are aligned.
Irradiation device for breast cancer treatment.
According to paragraph 1,
It further includes one or more leg portions (70) extending from the body portion (10),
The leg portion 70,
First leg portion 71; and
A second leg portion 72 is installed on the first leg portion 71 and has a thickness thinner than the first leg portion 71.
Irradiation device for breast cancer treatment.
According to clause 4,
The second leg portion 72 is installed on the first leg portion 71 to enable adjustment of the protruding length of the second leg portion 72 with respect to the first leg portion 71.
Irradiation device for breast cancer treatment.
According to paragraph 1,
The lower part of the body 10 further includes a second guide rail 14 extending to the shield 30 so that the distance from the second opening 21 is the same,
The irradiation unit 50 is movably installed on the second guide rail 14,
Irradiation device for breast cancer treatment.
According to clause 6,
The shielding portion 30 is formed to be inclined upward at a predetermined angle with respect to the support portion 20,
The second guide rail 14 extends to the shield 30,
Irradiation device for breast cancer treatment.
In clause 7,
The angle formed by the shielding part 30 with respect to the support part 20 is 15 degrees to 45 degrees,
Irradiation device for breast cancer treatment.
According to paragraph 1,
Further comprising an aperture 22 capable of adjusting the size of the second opening 21,
Irradiation device for breast cancer treatment.
According to clause 9,
The portion of the aperture 22 that is in contact with the second opening 21 is formed of an elastic material,
Irradiation device for breast cancer treatment.
According to paragraph 3,
The seating portion 40 is further formed with a fourth opening 42 into which the face is inserted,
A display 23 aligned with the fourth opening 42 is formed on the support portion 20 when the seating portion 40 is in the first position.
Irradiation device for breast cancer treatment.
According to paragraph 1,
The body portion 10, the support portion 20, the shielding portion 30, and the seating portion 40 are formed of a material capable of shielding radiation.
Irradiation device for breast cancer treatment.
According to paragraph 1,
The imaging unit 60 is a CBCT (Cone Beam Computer Tomography) capable of imaging while rotating in a transverse direction perpendicular to the support unit 20.
Irradiation device for breast cancer treatment.
According to paragraph 1,
One linear beam applied from the irradiation unit 50 has a width that covers at least the entire area of the breast,
Irradiation device for breast cancer treatment.

Images