Apparatus and method for radiosurgical treatment of human breast cancer using single radioactive source
Through the design of a single radio source equipment, the combination of radio mechanisms and support mechanisms is used to achieve accurate radiotherapy for breast cancer, solving the problems of inconvenient operation of multi-source equipment and increasing use of radioactive substances, and improving treatment efficiency and safety.
Patent Information
- Application Number
- CN202411514744.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2024-12-27
AI Technical Summary
The use of multiple cobalt-60 sources of existing radiosurgery equipment has led to increased concerns about the use of radioactive substances. The sources need to be replaced frequently, which is costly and inconvenient to operate, making it difficult to effectively block the affected areas of the patient, affecting the treatment efficiency.
Using a single radiation source equipment, the combination of radiation mechanism, rotating mechanism, swing mechanism, support mechanism and adjustment mechanism can achieve accurate focus of the radiation beam and three-dimensional movement of breast cancer in the breast, and the position of the radiation source is adjusted by using the servo motor and slide rail structure. and angle, adapt to different heights and angles, and reduce damage to normal tissue.
Accurate radiotherapy for breast cancer is achieved, which reduces damage to normal tissues, improves treatment efficiency and safety, reduces the frequency of use and replacement of radioactive substances, and reduces costs.
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Figure CN119185812A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical equipment, in particular to equipment and methods for radiosurgery treatment of human breast cancer using a single radiation source. Background Art
[0002] Radiosurgery is able to ablate tumors with sub-millimeter precision. The Gamma Knife is the first device specifically designed for radiosurgery of brain tumors. Radioablation has been shown to be effective for all sites where a single or small high dose can be safely delivered. It has also been successfully used to treat breast cancer. Both the Gamma Knife and GammaPod use multiple cobalt-60 sources as the source of the gamma-ray beam. The advantage of using multiple cobalt-60 sources is that the multiple beams can be simply focused to one point, often called the isocenter. By directing all gamma rays emitted by sources distributed in a solid angle to one point, the radiation dose at the focal point is the greatest, and the surrounding area bears only a small portion of the radiation exposure burden. The larger the solid angle at which the rays are focused, the greater the dose ratio between the target at the focal point and the surrounding normal structures.
[0003] However, in practice, the number of sources needs to be limited, and they cannot be arranged at latitudes exceeding several dozen degrees. However, the use of radioactive materials increases concerns about radiation protection. Due to radioactive decay, the sources also need to be replaced every 5-6 years, which increases costs. In addition, when treating patients, the affected area of the patient is not well shielded, which can easily cause secondary damage. At the same time, most traditional methods require patients to actively lie prone on the bed, which is time-consuming and laborious, and it is not convenient to adjust the position of the affected area after lying prone. The operation is very inconvenient, which reduces the efficiency of treatment. Summary of the invention
[0004] In view of the problems in the prior art, the present invention provides an apparatus and method for radiosurgery treatment of human breast cancer using a single radiation source.
[0005] The technical solution adopted by the present invention to solve its technical problem is: a device for radiosurgery of human breast cancer using a single radiation source, comprising: a base; a radiation mechanism, one end of the base is equipped with the radiation mechanism, the radiation mechanism comprises a shell, the shell is installed on the base, a connecting seat is installed inside the shell, a vertical plate is installed on the connecting seat, a mounting plate is installed on one side of the vertical plate, a transmitter is installed on one side of the mounting plate, a top plate is installed on the top of the shell, an inner shell is installed at the center of the top plate, one end of the transmitter is located outside the inner shell, the shell and the inner shell are at the same center, and the target of the transmitter is also located at the center of the inner shell; a swing mechanism, the radiation mechanism is equipped with a swing mechanism.
[0006] Specifically, a rotating mechanism is installed on the radiating mechanism, and the rotating mechanism includes a servo motor. The servo motor is detachably connected to the top of the connecting seat, and a connecting shaft is installed at the center of the bottom of the shell. The connecting seat is rotatably connected to the connecting shaft, and the output shaft at the bottom of the servo motor is connected to the connecting shaft. The connecting seat is rotatably connected to the bottom of the shell through the servo motor.
[0007] Specifically, the swing mechanism includes a first slide rail, two parallel first slide rails are installed on one side of the vertical plate, the two first slide rails are arc-shaped structures, two first sliders with arc-shaped structures are installed on one side of the mounting plate, the first sliders are slidably connected to the first slide rails, the mounting plate and one side of the vertical plate are slidably connected through the first slider and the first slide rail, an arc-shaped rack is installed on one side of the vertical plate, the rack is located between the two first slide rails, a servo motor is vertically and detachably connected to the mounting plate, the output shaft of the servo motor extends to one side of the rack, the output shaft of the servo motor is connected to a gear, and the gear is meshed with the rack.
[0008] Specifically, a supporting mechanism is installed on the other end of the base, and the supporting mechanism includes a fixing plate. Two parallel fixing plates are vertically fixedly connected to the top of the other end of the base. A control plate is provided on the top of the base. The two fixing plates are respectively and cross-rotatably connected to two driving rods on the back sides thereof. The tops of the two driving rods are respectively and rotationally connected to the two sides of the control plate. The lengths of the two groups of driving rods are unequal. One ends of the two fixing plates are respectively and rotationally connected to electric push rods. The top output shafts of the two electric push rods are respectively and rotationally connected to one side of two driving rods of equal length.
[0009] Specifically, a lying mechanism is installed on the support mechanism, and the lying mechanism includes a support plate. The support plate is installed on one side of the control plate, and a lying plate is installed on the support plate through a connecting plate. A through hole is provided at the midline of one end of the lying plate.
[0010] Specifically, the cross-section of the lying board is a "concave" structure, the diameter of the through hole is large enough to allow the largest breast to pass through and under the running board, the diameter of the inner shell is approximately twice the diameter of the through hole, and a pedal is vertically connected to the other end of the lying board, and the pedal can be moved electrically or manually in the front and rear directions, so that the breasts of women of different heights can be placed in the through hole.
[0011] The cam is connected with the control board by the sliding block, and the driving member is connected with the control board by the sliding block, and the driving member is connected with the control board by the sliding block, and the driving member is connected with the control board and the support board by the sliding block.
[0012] Specifically, a limiting assembly is installed on the base, and the limiting assembly includes a support block. The top side of one end of the base is vertically connected to the support block, and the support block is located on one side of the control panel. The limiting block is fixedly connected at the midline of one side of the control panel, and the bottom of the limiting block is in conflict with the top of the support block. The support block is a "7" shaped structure, and the control panel is at a certain distance from the bottom of the support block.
[0013] A method of using an apparatus for radiosurgery of human breast cancer using a single radiation source comprises the following steps:
[0014] S1: Through the rotation of the vertical plate and the base and the arc movement of the radiation source on the vertical plate, the radiation beam is always directed to an isocenter point, achieving geometric focusing of the focus from a large solid angle. Then, through the three-dimensional movement of the horizontal plate, the focus is moved within the volume of the breast cancer in the breast, so that the breast cancer cells are killed, while the normal breast tissue is not in the focus and is protected;
[0015] S2: Furthermore, because the damage of radiation to breast cancer and normal tissues at different angles is different, such as some angles may hit the heart or lungs, a single radiation source can adjust the weights of different angles, which is more effective than a multi-source system.
[0016] S3: Going a step further, using a single radiation source only requires one collimator, making it possible to use a deformable collimator, such as a multileaf collimator. The size of the radiation field can be varied according to the size of the tumor, which can shorten the treatment time. The deformable collimator can shield normal tissue in every direction, thereby better protecting normal tissue.
[0017] The beneficial effects of the present invention are:
[0018] (1) The apparatus and method for radiosurgery of human breast cancer using a single radiation source described in the present invention facilitates safe radiosurgery of the patient's affected area through the coordination of the radiation mechanism and the rotation mechanism.
[0019] (2) The apparatus and method for radiosurgery of human breast cancer using a single radiation source described in the present invention facilitates the longitude adjustment of the radiation machine through the cooperation of the swing mechanism, so that the radiation area can be accurately positioned, the radiation effect is good, and other parts will not be damaged. That is, through the rotation of the vertical plate and the base and the arc movement of the radiation source on the vertical plate, the radiation beam is always directed to an isocenter point, achieving geometric focusing of the focus from a large solid angle, and then through the three-dimensional movement of the lying plate, the focus is moved within the volume of the breast cancer in the breast, so that the breast cancer cells are killed, while the normal breast tissue is not in the focus and is protected.
[0020] (3) The apparatus and method for radiosurgery of human breast cancer using a single radiation source described in the present invention enables the patient to step on it in a standing position through the cooperation of the support mechanism and the flat lying mechanism, and then adjust the angle to achieve treatment in a prone position.
[0021] (4) The apparatus and method for radiosurgery of human breast cancer using a single radiation source described in the present invention can freely adjust the height and position of the flat mechanism by installing an adjustment mechanism, which is conducive to adjusting the radiation area according to patients of different heights, and is more labor-saving and convenient to operate. The focus can be moved within the volume of the breast cancer in the breast by moving the flat board in three dimensions, so that the breast cancer cells are killed, while the normal breast tissue is not in the focus and is protected. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0023] Figure 1 A schematic diagram of the overall structure provided by the present invention;
[0024] Figure 2 It is a schematic diagram of the connection structure between the lying board and the base of the present invention;
[0025] Figure 3 It is a schematic diagram of the connection structure between the limit block and the support block of the present invention;
[0026] Figure 4 It is a schematic diagram of the connection structure between the vertical plate and the shell of the present invention;
[0027] Figure 5 It is a schematic diagram of the connection structure between the connection plate and the base of the present invention;
[0028] Figure 6It is a schematic diagram of the connection structure between the transmitter and the vertical plate of the present invention;
[0029] Figure 7 It is a schematic diagram of the connection structure between the mounting plate and the vertical plate of the present invention.
[0030] In the figure: 1, base; 2, radiating mechanism; 201, shell; 202, vertical plate; 203, transmitter; 204, inner shell; 205, connecting seat; 206, mounting plate; 207, top plate; 3, rotating mechanism; 301, servo motor; 302, connecting shaft; 4, swing mechanism; 401, first slide rail; 402, rack; 403, servo motor; 404, gear; 405, first slide block; 5, flat machine Structure; 501, support plate; 502, connecting plate; 503, lying plate; 504, through hole; 505, pedal; 6, supporting mechanism; 601, control board; 602, fixing plate; 603, electric push rod; 604, driving rod; 7, adjusting mechanism; 701, second slide rail; 702, second slider; 703, transmission plate; 704, driving assembly, 8, limiting assembly, 801, limiting block; 802, supporting block. DETAILED DESCRIPTION
[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.
[0032] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the device for radiosurgery of human breast cancer using a single radiation source according to the present invention comprises a base 1, a radiation mechanism 2 is mounted on one end of the base 1, a rotating mechanism 3 is mounted on the radiation mechanism 2, a swing mechanism 4 is mounted on the radiation mechanism 2, a supporting mechanism 6 is mounted on the other end of the base 1, a lying mechanism 5 is mounted on the supporting mechanism 6, and an adjusting mechanism 7 is mounted on the lying mechanism 5.
[0033] Specifically, Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, the radiation mechanism 2 includes a shell 201, the shell 201 is installed on the base 1, the shell 201 is a hemispherical structure with a hollow interior, a connecting seat 205 is installed inside the shell 201, a vertical plate 202 is installed on the connecting seat 205, a mounting plate 206 is installed on one side of the vertical plate 202, a transmitter 203 is installed on one side of the mounting plate 206, a top plate 207 is installed on the top of the shell 201, an inner shell 204 is installed at the center of the top plate 207, the inner shell 204 is a hemispherical structure with a hollow interior, one end of the transmitter 203 is located outside the inner shell 204, the shell 201 and the inner shell 204 are connected to each other. The target of the transmitter 203 is located at the same center of the circle, and the target of the transmitter 203 is also located at the center of the inner shell 204. The installation of the shell 201 facilitates the connection with the connecting seat 205, and at the same time, the external protection of the transmitter 203 is provided, and the effect of radiation is reduced. The installation of the connecting seat 205 facilitates the installation of the vertical plate 202, so as to achieve the connection with the mounting plate 206. The installation of the mounting plate 206 facilitates the connection with the transmitter 203, so as to achieve radiotherapy of the affected part. The installation of the top plate 207 facilitates the connection with the inner shell 204, so as to achieve placement treatment of the patient's breast and protect the patient at the same time.
[0034] Specifically, Figure 6 As shown, a rotating mechanism 3 is installed on the radiation mechanism 2, and the rotating mechanism 3 includes a servo motor 301. The servo motor 301 is detachably connected to the top of the connecting seat 205, and a connecting shaft 302 is installed at the bottom center of the shell 201. The connecting seat 205 is rotatably connected to the connecting shaft 302, and the bottom output shaft of the servo motor 301 is connected to the connecting shaft 302. The connecting seat 205 is rotatably connected to the bottom of the shell 201 through the servo motor 301. The installation of the servo motor 301 facilitates the drive control of the connecting seat 201, so that the connecting seat 201 drives the vertical plate 202 and the radiator to make a circular motion around the inner shell 204, thereby realizing all-round radiation therapy for the affected area.
[0035] Specifically, Figure 6 and Figure 7As shown, the swing mechanism 4 includes a first slide rail 401, two parallel first slide rails 401 are installed on one side of the vertical plate 202, and the two first slide rails 401 are arc-shaped structures. Two first sliders 405 with arc-shaped structures are installed on one side of the mounting plate 206, and the first sliders 405 are slidably connected to the first slide rails 401. The mounting plate 206 is slidably connected to one side of the vertical plate 202 through the first sliders 405 and the first slide rails 401. An arc-shaped rack 402 is installed on one side of the vertical plate 202, and the rack 402 is located between the two first slide rails 401. A servo motor 403 is vertically and detachably connected to the mounting plate 206. The servo motor 4 03 output shaft extends to one side of the rack 402, and the output shaft of the servo motor 403 is connected to a gear 404, and the gear 404 is meshed with the rack 402. Through the coordinated installation of the first slide rail 401 and the first slider 405, the mounting plate 206 and the vertical plate 202 can slide freely. Since the first slide rail 401 is an arc structure, the transmitter 203 can move around the outside of the inner shell 204. Through the operation of the servo motor 403, the gear 404 is moved on the rack 402, thereby driving the mounting plate 206 and the transmitter 203 to move and adjust, so that the transmitter 203 can adjust the radiation position.
[0036] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the support mechanism 6 includes a fixed plate 602, and two parallel fixed plates 602 are vertically fixedly connected to the top of the other end of the base 1. A control board 601 is provided on the top of the base 1. The two fixed plates 602 are respectively connected to two driving rods 604 on the back sides thereof, and the tops of the two driving rods 604 are respectively connected to the two sides of the control board 601 for rotation. The lengths of the two groups of driving rods 604 are unequal. One end of the two fixed plates 602 is respectively connected to an electric push rod 603 for rotation. The output shafts of the two electric push rods 603 are respectively connected to the top of the two electric push rods 603. It is rotatably connected to one side of two equal-length driving rods 604. The installation of the fixing plate 602 facilitates the connection of the two groups of driving rods 604. The staggered distribution of the two groups of driving rods 604 enables the support of the control board 601. The two electric push rods 603 work to control two of the equal-length driving rods 604, thereby achieving angle adjustment of the control board 601. The installation of the support plate 501 and the control board 601 enables the angle control of the lying board 503, which is convenient for patient treatment.
[0037] Specifically, Figure 1 and Figure 2As shown, the lying mechanism 5 includes a support plate 501, a support plate 501 is installed on one side of the control plate 601, a lying plate 503 is installed on the support plate 501 through a connecting plate 502, and a through hole 504 is provided at the midline of one end of the lying plate 503. The installation of the support plate 501 facilitates the connection with the control plate 601, and the installation of the support plate 501 facilitates the support of the lying plate 503. The cooperation of the lying plate 503 facilitates the patient to lie prone, and the affected part is extended to the inside of the inner shell 204 through the through hole 504 for treatment. Subsequently, the height and angle of the lying plate 503 are adjusted by controlling the height and angle of the support plate 501, so that the patient can lie down and align the affected part conveniently, and facilitate subsequent precise treatment.
[0038] Specifically, Figure 1 and Figure 2 As shown, the cross-section of the lying board 503 is a "concave" structure, the diameter of the through hole 504 is large enough to allow the largest breast to pass through it and under the trip board, the diameter of the inner shell 204 is about twice the diameter of the through hole 504, and the other end of the lying board 503 is vertically connected to a pedal 505, which can be moved electrically or manually in the front and rear directions, so that the breasts of women of different heights can be placed in the through hole 504.
[0039] Specifically, Figure 1 and Figure 2As shown, the adjustment mechanism 7 includes a second slide rail 701, and parallel second slide rails 701 are respectively installed on one side of the connecting plate 502 and the supporting plate 501, and second sliders 702 are respectively slidably connected to the plurality of second slide rails 701, and the supporting plate 501 is slidably connected to one side of the control plate 601 through the second slide rail 701 and the second slider 702, and a driving component 704 is connected between the control plate 601 and the supporting plate 501, and a transmission plate 703 is provided on one side of the connecting plate 502, and the connecting plate 502 is slidably connected to one side of the transmission plate 703 through the second slide rail 701 and the second slider 702, and a driving component 704 is connected between the transmission plate 703 and the connecting plate 502, and the transmission plate 703 is slidably connected to one side of the lying plate 503 through the second slide rail 701 and the second slider 702, and a driving component 704 is connected between the transmission plate 703 and the lying plate 503, and the moving direction of the transmission plate 703 is parallel to that of the lying plate 503. The moving direction is vertical. When the support plate 501 is perpendicular to the base 1, it will be trapped in the limiting mechanism 8 provided on the base. At this time, the lying board is in a horizontal state, and the support plate 501 will be kept in an upright position by the limiting mechanism 8 on the base. The control board 601 can move the entire support mechanism 6 and the lying mechanism 5 in the up and down directions through the slider 702, the slide rail 701 and the driving component 704 to adjust the height of the lying board. By controlling the up and down of the support plate 501, the lying board 503 can move up and down, so that the breast of the patient on the lying board 503 can move up and down, so that the patient's affected part is aligned with the bull's eye for precise radiotherapy. Through the cooperation of the second slide rail 701, the second slider 702 and the driving component 704, the height of the support plate 501 can be adjusted, and the position of the pedal 505 can be accurately adjusted, so that the patient's affected part can be well aligned with the bull's eye of the transmitter 203, thereby achieving precise radiotherapy.
[0040] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, a limit assembly 8 is installed on the base 1, and the limit assembly 8 includes a support block 802. The top side of one end of the base 1 is vertically connected with the support block 802, and the support block 802 is located on one side of the control board 601. The limit block 801 is fixedly connected at the midline of one side of the control board 601, and the bottom of the limit block 801 is in conflict with the top of the support block 802. The support block 802 is a "7"-shaped structure, and the control board 601 and the bottom of the support block 802 are at a certain distance. Through the installation of the support block 802, the limit block 801 on the control board 601 is in conflict with the support block 802 to limit the control board 601, so that the control board 601 maintains a vertical and stable state. When the control board 601 rotates, the bottom of the support block 802 is at a certain distance from the control board 601, which is convenient for the control board 601 to rotate an angle. At this time, the limit block 801 is separated from the top of the support block 802.
[0041] A method of using an apparatus for radiosurgery of human breast cancer using a single radiation source comprises the following steps:
[0042] S1: Through the rotation of the vertical plate 202 and the base 1 and the arc movement of the radiation source on the vertical plate, the radiation beam is always directed to an isocenter point, achieving geometric focusing of the focus from a large solid angle, and then through the three-dimensional movement of the horizontal plate, the focus is moved within the volume of the breast cancer in the breast, so that the breast cancer cells are killed, while the normal breast tissue is not in the focus and is protected;
[0043] S2: Furthermore, because the damage of radiation to breast cancer and normal tissues at different angles is different, such as some angles may hit the heart or lungs, a single radiation source can adjust the weights of different angles, which is more effective than a multi-source system.
[0044] S3: Going a step further, using a single radiation source only requires one collimator, making it possible to use a deformable collimator, such as a multileaf collimator. The size of the radiation field can be varied according to the size of the tumor, which can shorten the treatment time. The deformable collimator can shield normal tissue in every direction, thereby better protecting normal tissue.
[0045] When the present invention is used, firstly, the installation of the shell 201 facilitates the connection with the connecting seat 205, and at the same time, the external protection of the emitter 203 is provided, and the radiation effect is reduced. The installation of the connecting seat 205 facilitates the installation of the upright plate 202, thereby realizing the connection with the mounting plate 206. The installation of the mounting plate 206 facilitates the connection with the emitter 203, thereby realizing radiotherapy of the affected part. The installation of the top plate 207 facilitates the connection with the inner shell 204, thereby realizing the placement treatment of the patient's breast and playing a role in protecting the patient. The installation of the servo motor 301 facilitates the driving control of the connecting seat 205, and realizes that the connecting seat 205 drives the upright plate 202 and the emitter to make a circular motion around the inner shell 204, realizing all-round radiation therapy of the affected part. The first slide rail 401 and the first slider 405 are installed together to make the mounting plate 206 and the vertical plate 202 slide freely. Since the first slide rail 401 is an arc structure, the emitter 203 can move around the outer side of the inner shell 204. The servo motor 403 works to make the gear 404 move on the rack 402, thereby driving the mounting plate 206 and the emitter 203 to move and adjust, so that the emitter 203 can adjust the radiation position. The installation of the fixing plate 602 is conducive to connecting the two groups of driving rods 604. The staggered distribution of the two groups of driving rods 604 realizes the support of the control board 601. The two electric push rods 603 work to control the two driving rods 604 of equal length, thereby realizing the control of the control board 60 1, through the installation of the support plate 501 and the control plate 601, the angle control of the lying plate 503 is realized, which is convenient for patient treatment. Through the installation of the support block 802, the limit block 801 on the control plate 601 is conducive to the contact and limit of the support block 802, so that the control plate 601 maintains a vertical stable state. When the control plate 601 is rotated, the bottom of the support block 802 is at a certain distance from the control plate 601, which is convenient for the control plate 601 to rotate at an angle. At this time, the limit block 801 is separated from the top of the support block 802. Through the installation of the support plate 501, it is convenient to connect with the control plate 601. Through the installation of the support plate 501, it is convenient to support the lying plate 503. Through the cooperation of the lying plate 503 , it is convenient for the patient to lie prone, and extend the affected part through the through hole 504 to the inside of the inner shell 204 for treatment, and then the angle of the lying board 503 is adjusted through the control of the control board 601, which is convenient for the patient's radiotherapy, so that the patient's affected part can extend to the inside of the inner shell 204, and the installation of the pedal 505 is convenient for the patient to fit with the lying board 503 in a standing posture. The pedal can be moved electrically or manually in the front and rear directions, so that the breasts of women of different heights can be placed in the above-mentioned through hole. The "concave" structure design of the lying board 503 is conducive to the patient's fit with the lying board 503 without slipping, which plays a role in safety protection. The cooperation of the second slide rail 701, the second slider 702 and the driving assembly 704 makes the height of the support plate 501 adjustable.The position of the pedal 505 can be precisely adjusted, and the lying plate 503 can be moved up and down by controlling the supporting plate 501 up and down, so that the breast of the patient on the lying plate 503 can move up and down, so that the patient's affected part can be well aligned with the center of the transmitter 203, and accurate radiotherapy can be achieved.
[0046] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. Apparatus for radiosurgery of human breast cancer using a single radiation source, characterized in that include: Base (1); A radiation mechanism (2), wherein the radiation mechanism (2) is mounted on one end of the base (1), the radiation mechanism (2) comprising a shell (201), the shell (201) being mounted on the base (1), a connecting seat (205) being mounted inside the shell (201), a vertical plate (202) being mounted on one side of the vertical plate (202), a mounting plate (206) being mounted on one side of the mounting plate (206), a transmitter (203) being mounted on one side of the mounting plate (206), a top plate (207) being mounted on the top of the shell (201), an inner shell (204) being mounted at the center of the top plate (207), one end of the transmitter (203) being located outside the inner shell (204), the shell (201) and the inner shell (204) being located at the same center of a circle, and the center of the target of the transmitter (203) being located at the center of the inner shell (204); A swing mechanism (4), wherein the radiating mechanism (2) is provided with a swing mechanism (4).
2. The apparatus for radiosurgery of human breast cancer using a single radiation source according to claim 1, characterized in that: The radiating mechanism (2) is provided with a rotating mechanism (3), the rotating mechanism (3) comprising a servo motor (301), the top of the connecting seat (205) is detachably connected to the servo motor (301), a connecting shaft (302) is provided at the bottom center of the shell (201), the connecting seat (205) is rotatably connected to the connecting shaft (302), the bottom output shaft of the servo motor (301) is connected to the connecting shaft (302), and the connecting seat (205) is rotatably connected to the bottom of the shell (201) via the servo motor (301).
3. The apparatus for radiosurgery of human breast cancer using a single radiation source according to claim 2, characterized in that: The swing mechanism (4) comprises a first slide rail (401), two parallel first slide rails (401) are installed on one side of the vertical plate (202), the two first slide rails (401) are arc-shaped structures, two first sliders (405) with arc-shaped structures are installed on one side of the mounting plate (206), the first sliders (405) are slidably connected with the first slide rail (401), and the mounting plate (206) and one side of the vertical plate (202) are connected via the first sliders (405) and the first The slide rail (401) is slidably connected, an arc-shaped rack (402) is installed on one side of the vertical plate (202), and the rack (402) is located between the two first slide rails (401). A servo motor (403) is vertically and detachably connected to the mounting plate (206), and the output shaft of the servo motor (403) extends to one side of the rack (402). The output shaft of the servo motor (403) is connected to a gear (404), and the gear (404) is meshed with the rack (402).
4. The apparatus for radiosurgery of human breast cancer using a single radiation source according to claim 1, characterized in that: A support mechanism (6) is installed on the other end of the base (1), and the support mechanism (6) comprises a fixed plate (602). Two parallel fixed plates (602) are vertically fixedly connected to the top of the other end of the base (1). A control board (601) is provided on the top of the base (1). Two driving rods (604) are cross-rotatably connected to the back sides of the two fixed plates (602). The tops of the two driving rods (604) are respectively rotatably connected to the two sides of the control board (601). The lengths of the two groups of driving rods (604) are unequal. One end of the two fixed plates (602) is respectively rotatably connected to an electric push rod (603). The output shafts at the tops of the two electric push rods (603) are respectively rotatably connected to one side of two driving rods (604) of equal length.
5. The apparatus for radiosurgery of human breast cancer using a single radiation source according to claim 4, characterized in that: The support mechanism (6) is provided with a lying mechanism (5), the lying mechanism (5) comprising a support plate (501), the support plate (501) being provided on one side of the control plate (601), a lying plate (503) being provided on the support plate (501) via a connecting plate (502), and a through hole (504) being provided at the midline of one end of the lying plate (503).
6. The apparatus for radiosurgery of human breast cancer using a single radiation source according to claim 5, characterized in that: The cross section of the lying board (503) is a "concave" structure. The diameter of the through hole (504) is large enough to allow the largest breast to pass through it and under the running board. The diameter of the inner shell (204) is approximately twice the diameter of the through hole (504). A pedal (505) is vertically connected to the other end of the lying board (503). The pedal can be moved in the front and rear direction electrically or manually, so that the breasts of women of different heights can be placed in the through hole.
7. The apparatus for radiosurgery of human breast cancer using a single radiation source according to claim 6, characterized in that: The lying mechanism (5) is provided with an adjustment mechanism (7), the adjustment mechanism (7) comprising a second slide rail (701), one side of the connecting plate (502) and the supporting plate (501) are respectively provided with parallel second slide rails (701), and a plurality of second slide rails (701) are respectively slidably connected with second sliders (702), the supporting plate (501) is slidably connected with one side of the control plate (601) through the second slide rail (701) and the second slider (702), a driving assembly (704) is connected between the control plate (601) and the supporting plate (501), one side of the connecting plate (502) is provided with a transmission plate (703), the connecting plate (502) is slidably connected with one side of the transmission plate (703) through the second slide rail (701) and the second slider (702), and the transmission plate (703) is connected to the connecting plate (501). 02), the transmission plate (703) is slidably connected to one side of the lying plate (503) through the second slide rail (701) and the second slider (702), the driving assembly (704) is connected between the transmission plate (703) and the lying plate (503), the moving direction of the transmission plate (703) is perpendicular to the moving direction of the lying plate (503), when the support plate (501) is perpendicular to the base (1), it will be trapped in the limiting mechanism (8) provided on the base, at this time, the lying plate is in a horizontal state, the support plate (501) will be kept in an upright position by the limiting mechanism (8) on the base, the control panel (601) can move the entire support mechanism (6) and the lying mechanism (5) in the up and down directions through the slider (702) and the slide rail (701) and the driving assembly (704) to adjust the height of the lying plate.
8. The apparatus for radiosurgery of human breast cancer using a single radiation source according to claim 7, characterized in that: A limit block (8) is installed on the base (1), the limit block (8) comprising a support block (802), the top side of one end of the base (1) being vertically connected to the support block (802), the support block (802) being located on one side of the control board (601), the limit block (801) being fixedly connected at the midline of one side of the control board (601), the bottom of the limit block (801) abutting against the top of the support block (802), the support block (802) being a "7"-shaped structure, and a certain distance between the control board (601) and the bottom of the support block (802).
9. The method for using the device for radiosurgery of human breast cancer using a single radiation source according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: Through the rotation of the vertical plate (202) and the base (1) and the arc movement of the radiation source on the vertical plate, the radiation beam is always directed to an isocenter point, achieving geometric focusing of the focus from a large solid angle, and then through the three-dimensional movement of the horizontal plate, the focus is moved within the volume of the breast cancer in the breast, so that the breast cancer cells are killed, while the normal breast tissue is not in the focus and is protected; S2: Furthermore, because the damage of radiation to breast cancer and normal tissues at different angles is different, such as some angles may hit the heart or lungs, a single radiation source can adjust the weights of different angles, which is more effective than a multi-source system. S3: Going a step further, using a single radiation source only requires one collimator, making it possible to use a deformable collimator, such as a multileaf collimator. The size of the radiation field can be varied according to the size of the tumor, which can shorten the treatment time. The deformable collimator can shield normal tissue in every direction, thereby better protecting normal tissue.
