Self-shielding device for radiotherapy

Abstract

The utility model relates to a self-shielding device for radiotherapy. The self-shielding device comprises an electronic flash therapy equipment base, the electronic flash therapy shell is rotationally assembled on the electronic flash therapy equipment base; the high-energy electron accelerator is arranged in the electron flash therapy shell and is used for providing pulse electron beams; the electronic flash therapy head is assembled at the end part of the electronic flash therapy shell, and the tail end of the electronic flash therapy head is used for irradiating the irradiation device; the irradiation device is located on the electronic flash therapy equipment base, and the guide rail is located between the electronic flash therapy equipment base and the electronic flash therapy shell and used for adjusting the position relation between the electronic flash therapy shell and the irradiation device; the electronic flash therapy head is ingenious in design and convenient to operate, the outer sleeve can move up and down along the inner sleeve, and animal fixing and electronic ray irradiation operation can be conveniently carried out.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a self-shielding device for radiotherapy. BACKGROUND

[0002] Radiotherapy has become one of the main ways to treat cancer. Statistics show that more than 70% of cancer patients need to use radiotherapy alone or in combination with other treatments.

[0003] Flash radiotherapy is a new type of radiotherapy technology, which is characterized by delivering high-dose radiation to tumor tissue in a very short time (usually milliseconds). Compared with traditional low-dose rate radiotherapy, Flash radiotherapy can effectively kill tumor cells while reducing damage to normal tissues. Flash radiotherapy has the following advantages compared with traditional low-dose rate radiotherapy:

[0004] 1. Flash radiotherapy can deliver high-dose radiation to tumor tissue in a short time, effectively killing tumor cells;

[0005] 2. Flash radiotherapy can effectively kill tumor cells while reducing damage to normal tissues, which makes it have good biological effects;

[0006] 3. The treatment time of Flash radiotherapy is usually only a few seconds, which allows patients to complete treatment in a short time and reduces their pain;

[0007] Flash radiotherapy technology is still in the preclinical research stage, but it has broad application prospects and is expected to bring revolutionary breakthroughs in tumor treatment. At present, the mechanism of Flash radiotherapy is not clear, and more experimental research needs to be carried out on small animal models to verify the efficacy of Flash radiotherapy on different types of tumors and the protective effect on different normal tissues, and further clarify its mechanism of action. Therefore, developing small animal Flash radiotherapy equipment and conducting systematic research on small animal models will be an important step in promoting the transformation of this technology to clinical application in the future; however, in the Flash radiotherapy equipment animal experiment, it is necessary to ensure that the radiation does not harm the surrounding environment and the operator during the operation. The current radiotherapy equipment has certain deficiencies in self-shielding and cannot meet the needs of animal experiments well.

[0008] In view of the above technical problems, improvement is needed. CONTENT OF THE UTILITY MODEL

[0009] The utility model is to overcome the defects in the prior art, and provide a self-shielding device for radiotherapy.

[0010] To achieve the above object, the utility model adopts the technical scheme that is:

[0011] A self-shielding device for radiotherapy, comprising an electronic flash therapy device base, an electronic flash therapy shell rotatably assembled on the electronic flash therapy device base, a high-energy electron accelerator built in the electronic flash therapy shell for providing a pulsed electron beam, an electronic flash therapy head assembled at the end of the electronic flash therapy shell, the end of the electronic flash therapy head being used for irradiation to an irradiation device, the irradiation device being located on the electronic flash therapy device base, a guide rail located between the electronic flash therapy device base and the electronic flash therapy shell for adjusting the positional relationship between the electronic flash therapy shell and the irradiation device, and a sliding sleeve assembly assembled on the electronic flash therapy head and corresponding to the irradiation device.

[0012] As a preferred mode of the utility model, the sliding sleeve assembly is arranged along the length direction of the electronic flash therapy shell, and the sliding sleeve assembly comprises an inner sleeve and an outer sleeve; the inner sleeve and the outer sleeve are coaxially arranged, and the outer sleeve is slidingly assembled on the outer side of the inner sleeve.

[0013] As a preferred mode of the utility model, the bottom of the inner sleeve is formed with a convex ring, and the inner side of the top of the outer sleeve is formed with a positioning ring; the bottom of the inner sleeve is sleeved with a sealing ring; the sealing ring is located between the convex ring and the positioning ring.

[0014] As a preferred mode of the utility model, an upper guide hole is formed in the inner sleeve along the length direction, and a lower guide hole is formed in the outer sleeve along the length direction; the upper guide hole and the lower guide hole are in communication.

[0015] As a preferred mode of the utility model, the irradiation device comprises a base plate, a resting seat fixedly arranged on the base plate, and a resting block formed in the middle of the resting seat; the outer side of the resting block is formed with a guide groove matched with the outer sleeve; when the outer sleeve is built in the guide groove, the resting seat is in a shielding state, and when the outer sleeve is away from the guide groove, the resting seat is in a non-shielding state.

[0016] As a preferred mode of the utility model, the outer side of the electronic flash therapy shell is provided with a driving device for driving the outer sleeve to slide up and down along the inner sleeve.

[0017] As a preferred mode of the utility model, the driving device comprises a driving motor, a driving shaft is installed on the driving motor, and the other end of the driving shaft is fixedly arranged on the top of the outer sleeve.

[0018] As a preferred mode of the utility model, the bottom outer side of the outer sleeve is in a circular arc structure.

[0019] As a preferred mode of the utility model, the outer sleeve and the inner sleeve are both made of organic glass material.

[0020] In a preferred embodiment of this utility model, the base of the electronic flash therapy device includes a positioning seat and a support frame; the electronic flash therapy shell is rotatably assembled to one end of the support frame, and the irradiation device is located at the other end of the support frame.

[0021] In a preferred embodiment of this utility model, the support frame has an arc-shaped structure with a guide groove inside, and the guide rail has an arc-shaped structure, is built into the guide groove, and moves along the guide groove.

[0022] The beneficial effects of this utility model are:

[0023] 1. This utility model has a simple structure. The sliding sleeve assembly is assembled on the electron flash therapy head. This allows the electron beam generated by the high-energy electron accelerator to pass through the sliding sleeve assembly and irradiate the irradiation device. The sliding sleeve assembly, the electron flash therapy shell and the irradiation device cooperate with each other to effectively block radiation. The device has a rounded appearance, which reduces stimulation and harm to animals.

[0024] 2. This utility model has an ingenious design and is easy to operate: the outer sleeve can move up and down along the inner sleeve, which facilitates animal fixation and electron beam irradiation.

[0025] 3. The self-shielding device of this utility model has a rounded overall appearance, which reduces stimulation and harm to animals and improves the success rate of animal experiments.

[0026] 4. The self-shielding device of this utility model is made of environmentally friendly materials: the plexiglass material is environmentally friendly and non-toxic, and will not cause pollution to animals and the environment. Attached Figure Description

[0027] Figure 1 This is a side view of Embodiment 1 of this utility model;

[0028] Figure 2 This is Embodiment 1 of the present utility model. Figure 1 AA section view;

[0029] Figure 3 This is a usage state diagram of Embodiment 1 of this utility model;

[0030] Figure 4 This is a schematic diagram of the irradiation device according to Embodiment 1 of this utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the sliding sleeve assembly according to Embodiment 1 of this utility model;

[0032] Figure 6 This is a front view of the sliding sleeve assembly according to Embodiment 1 of this utility model;

[0033] Figure 7 This is Embodiment 1 of the present utility model. Figure 6B-B cross-sectional view of the electronic flash therapy device;

[0034] Figure 8 is the side view of the embodiment two of the utility model;

[0035] In the drawing, the reference signs are: electronic flash therapy device base 1, electronic flash therapy shell 2, irradiation device 3, sliding sleeve assembly 4, convex ring 5, positioning ring 6, driving device 7, sealing ring 8, rotating assembly 9, positioning seat 10, support frame 11, rotating seat 12, guide groove 13, bottom disc 30, resting seat 31, resting block 32, guide recess 33, inner sleeve 40, outer sleeve 41, upper guide hole 42, lower guide hole 43, circular arc structure 44, driving motor 70, driving shaft 71, high-energy electron accelerator 100, electronic flash therapy head 200, guide rail 300. DETAILED DESCRIPTION

[0036] The embodiments of the utility model will be described in detail below with reference to the drawings.

[0037] Embodiment one:

[0038] As shown in the figure, Figures 1-7

[0039] A self-shielding device for radiotherapy, comprising an electronic flash therapy device base 1; an electronic flash therapy shell 2 is rotatably assembled on the electronic flash therapy device base 1; a high-energy electron accelerator 100 is built-in in the electronic flash therapy shell 2 and is used for providing a pulse electron beam; an electronic flash therapy head 200 is assembled at the end of the electronic flash therapy shell 2, and the end of the electronic flash therapy head 200 is used for irradiating the irradiation device 3; the irradiation device 3 is located on the electronic flash therapy device base 1; a guide rail 300 is located between the electronic flash therapy device base 1 and the electronic flash therapy shell 2 and is used for adjusting the positional relationship between the electronic flash therapy shell 2 and the irradiation device 3; a sliding sleeve assembly 4 is assembled on the electronic flash therapy head 200 and is correspondingly arranged with the irradiation device 3; and the sliding sleeve assembly 4 is separated from or abuts against the irradiation device 3.

[0040] By adopting the above scheme, the electron beam generated by the high-energy electron accelerator 100 located in the electronic flash therapy shell 2 can swing at an angle of plus or minus 45 degrees, and this design enables the electron beam to adjust the angle in a larger range to adapt to different treatment sites and requirements; in addition, the sliding sleeve assembly 4 is assembled on the electronic flash therapy head 200, so that the electron beam generated by the high-energy electron accelerator 100 passes through the sliding sleeve assembly 4 and irradiates the irradiation device 3, and the sliding sleeve assembly 4, the electronic flash therapy shell 2 and the irradiation device 3 cooperate with each other to effectively block the radiation; the appearance of the device is round, and the stimulation and injury to animals are reduced.

[0041] Specifically, refer to Figures 5-7 ​The sleeve assembly 4 is arranged along the length direction of the electronic flash therapy shell 2, and the sleeve assembly 4 comprises an inner sleeve 40 and an outer sleeve 41; the inner sleeve 40 is coaxially arranged with the outer sleeve 41, and the outer sleeve 41 is slidingly assembled outside the inner sleeve 40; the inner sleeve 40 and the outer sleeve 41 are slidingly matched with each other, which greatly reduces the risk of radiation leakage. When the outer sleeve 41 rises, the action of fixing the animal to the irradiation device 3 can be performed, which is convenient and fast. After the outer sleeve 41 is lowered and embedded in the guide groove 33 of the irradiation device 3, electronic line irradiation can be performed, at this time, the whole animal is in the shielding cover, which ensures the safety of radiation.

[0042] The bottom of the inner sleeve 40 is formed with a convex ring 5, and the inner side of the top of the outer sleeve 41 is formed with a positioning ring 6; the bottom of the inner sleeve 40 is sleeved with a sealing ring 8; the sealing ring 8 is located between the convex ring 5 and the positioning ring 6; through the mutual cooperation between the positioning ring 6 and the convex ring 5, the movement between the inner sleeve 40 and the outer sleeve 41 is realized, and the disengagement between the inner sleeve 40 and the outer sleeve 41 is also prevented, and the sealing between the outer sleeve 41 and the inner sleeve 40 is ensured through the setting of the sealing ring 8; the shaking between the inner sleeve 40 and the outer sleeve 41 is avoided, and the mutual fitting between the inner sleeve 40 and the outer sleeve 41 is better in stability.

[0043] The inner sleeve 40 is formed with an upper guide hole 42 along the length direction; the outer sleeve 41 is formed with a lower guide hole 43 along the length direction; the upper guide hole 42 and the lower guide hole 43 are communicated; the electronic flash therapy head 200 passes through the upper guide hole 42 and the lower guide hole 43 for irradiation to the irradiation device 3.

[0044] Specifically, referring to the drawings Figure 4 As shown in the drawings, the irradiation device 3 comprises a bottom disc 30, a resting seat 31 fixedly arranged on the bottom disc 30, and a resting block 32 formed in the middle of the resting seat 31; the outer side of the resting block 32 is formed with a guide groove 33 matched with the outer sleeve 41; when the outer sleeve 41 is arranged in the guide groove 33, the resting seat 31 is in a shielding state; when the outer sleeve 41 is away from the guide groove 33, the resting seat 31 is in a non-shielding state.

[0045] By arranging the guide groove 33 on the resting seat 31, the guide groove 33 and the outer sleeve 41 are matched with each other, when the outer sleeve 41 falls, it can be embedded in the guide groove 33 to form a good seal and reduce radiation leakage; the groove width of the guide groove 33 is consistent with the thickness of the wall of the outer sleeve 41; in order to prevent the outer sleeve 41 from being inserted into the guide groove 33 more conveniently, the bottom outer side of the outer sleeve 41 is in a circular arc structure 44; when the circular arc structure 44 of the outer sleeve 41 contacts with the slot of the guide groove 33, the contact area of the two is increased, and the assembly efficiency between the outer sleeve 41 and the guide groove 33 is improved.

[0046] The outer sleeve 41 and the inner sleeve 40 are made of organic glass material to ensure the transparency and strength of the device. The irradiation state of the animal placed on the resting block 32 can be observed in real time.

[0047] The electronic flash therapy device base 1 comprises a positioning seat 10 and a support frame 11; the electronic flash therapy shell 2 is rotationally assembled at one end of the support frame 11, and the irradiation device 3 is located at the other end of the support frame 11; specifically, the positioning seat 10 and the support frame 11 improve the stability and safety of the entire device, and also improve the operation flexibility: the angle of the electronic flash therapy shell 2 can be adjusted in real time according to the actual situation, and personalized treatment plans are provided for patients.

[0048] The support frame 11 has an arc-shaped structure, and a guide groove 13 is formed in the inside of the support frame 11. The guide rail 300 has an arc-shaped structure, and the guide rail 300 is built in the guide groove 13 and moves along the guide groove 13. In this embodiment, by arranging the guide rail 300, the bracket with the arc-shaped guide rail 300 and the support frame 11 can produce arc-shaped sliding, so that the electronic flash therapy shell 2 can be slid to different horizontal heights. In this way, the electron beam in the high-energy electron accelerator 100 can be irradiated at different heights, further improving the flexibility and adaptability of the treatment.

[0049] The electronic flash therapy shell 2 is fixedly arranged near one side of the support frame 11, and a rotating seat 12 is arranged on the support frame 11. The rotating seat 12 and the rotating assembly 9 are arranged between the support frame 11 and the rotating seat 12. By arranging the rotating seat 12 and the rotating assembly 9, the rotating angle of the electronic flash therapy shell 2 can be adjusted, and the stability and precision of the rotating assembly 9 during operation are ensured by using the above structure design.

[0050] A shielding method of a radiotherapy device, the method comprising:

[0051] Step one, adjust the position of the electronic flash therapy device base 1, so that the irradiation device 3 is stably placed on the electronic flash therapy device base 1;

[0052] Step two, adjust the position of the electronic flash therapy shell 2 by using the guide rail 300, so that the sliding sleeve assembly 4 corresponds to the position of the resting block 32;

[0053] Step three, place the target object on the resting block 32;

[0054] Step four, move the outer sleeve 41 so that the outer sleeve 41 moves downward along the inner sleeve 40, and the bottom of the outer sleeve 41 is embedded in the guide groove 33; the outer sleeve 41 and the resting seat 31 on the irradiation device 3 are sealed with each other, and the overall sealed shielding structure is completed.

[0055] Embodiment two:

[0056] As Figure 8As shown, the outer side of the electronic flash therapy shell 2 is equipped with a driving device 7 for driving the outer sleeve 41 to slide up and down along the inner sleeve 40, and specifically, the driving device 7 includes a driving motor 70, a driving shaft 71 is installed on the driving motor 70, and the other end of the driving shaft 71 is fixed to the top of the outer sleeve 41.

[0057] From the above, it is not difficult to see that in actual use, the operator can control the driving device 7 to drive the outer sleeve 41 to move linearly along the length direction of the inner sleeve 40, so that the bottom of the outer sleeve 41 is embedded into the guide groove 33 when the outer sleeve 41 moves, and the connection between the sliding sleeve assembly 4 and the irradiation device 3 is more sealed, which can prevent radiation from leaking out of the gap, is safer, ensures the sealing of the equipment, prevents radiation leakage, and effectively protects the safety of surrounding personnel and the environment.

[0058] The other contents of the embodiment can refer to embodiment one.

[0059] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application; therefore, the present application should not be limited to the embodiments shown herein, but should be consistent with the widest scope of principles and novel features disclosed herein.

[0060] Although the terms electronic flash therapy device base 1, electronic flash therapy shell 2, irradiation device 3, sliding sleeve assembly 4, protruding ring 5, positioning ring 6, driving device 7, sealing ring 8, rotating assembly 9, positioning seat 10, support frame 11, rotating seat 12, guide groove 13, bottom plate 30, resting seat 31, resting block 32, guide groove 33, inner sleeve 40, outer sleeve 41, upper guide hole 42, lower guide hole 43, circular arc structure 44, driving motor 70, driving shaft 71, high-energy electron accelerator 100, electronic flash therapy head 200, guide rail 300, etc. are used more frequently in the drawings, but the possibility of using other terms is not excluded; the use of these terms is only to facilitate the description and explanation of the essence of the present application; any additional limitation is contrary to the spirit of the present application.

Claims

1. A self-shielding device for radiotherapy, characterized in that: The utility model relates to an electronic flash therapy device base (1); Electronic flash therapy shell (2), rotation assembly is equipped on electronic flash therapy device base (1); High-energy electron accelerator (100), built-in in electronic flash therapy shell (2), be used for providing pulse electron beam; Electronic flash therapy head (200), assembly is equipped on electronic flash therapy shell (2) end, and the end of electronic flash therapy head (200) is used to irradiate to irradiation device (3);Irradiation device (3) is located on electronic flash therapy device base (1), Guide rail (300), guide rail (300) is located between electronic flash therapy device base (1) and electronic flash therapy shell (2), is used for adjusting the positional relationship of electronic flash therapy shell (2) and irradiation device (3); Slip sleeve assembly (4), assembly is equipped on electronic flash therapy head (200), and the layout corresponds with irradiation device (3). The slip sleeve assembly (4) is arranged along the length direction of the electronic flash therapy shell (2), and the slip sleeve assembly (4) comprises an inner sleeve (40) and an outer sleeve (41). The inner sleeve (40) and the outer sleeve (41) are coaxially arranged, and the outer sleeve (41) is slidingly arranged outside the inner sleeve (40).

2. A self-shielding device for radiotherapy according to claim 1, characterized in that: The bottom of the inner sleeve (40) is formed with a convex ring (5), and the inner side of the top of the outer sleeve (41) is formed with a positioning ring (6). The bottom of the inner sleeve (40) is sleeved with a sealing ring (8), and the sealing ring (8) is located between the convex ring (5) and the positioning ring (6).

3. A self-shielding device for radiotherapy according to claim 2, wherein: The irradiation device (3) comprises a base plate (30), a resting seat (31) fixedly arranged on the base plate (30), and a resting block (32) formed in the middle of the resting seat (31). The outer side of the resting block (32) is formed with a guide groove (33) matched with the outer sleeve (41). When the outer sleeve (41) is arranged in the guide groove (33), the resting seat (31) is in a shielding state. When the outer sleeve (41) is away from the guide groove (33), the resting seat (31) is in a non-shielding state.

4. A self-shielding device for radiotherapy according to claim 1, characterized in that: The outer side of the electronic flash therapy shell (2) is provided with a driving device (7) for driving the outer sleeve (41) to slide up and down along the inner sleeve (40).

5. A self-shielding device for radiotherapy according to claim 2, characterized in that: The driving device (7) comprises a driving motor (70), and a driving shaft (71) is arranged on the driving motor (70). The other end of the driving shaft (71) is fixedly arranged on the top of the outer sleeve (41).

6. A self-shielding device for radiotherapy according to claim 5, wherein: The bottom outer side of the outer sleeve (41) is in a circular arc structure (44).

7. A self-shielding device for radiotherapy according to claim 5, wherein: The outer sleeve (41) and the inner sleeve (40) are both made of organic glass.

8. A self-shielding device for radiotherapy according to claim 5, wherein: The electronic flash therapy device base (1) comprises a positioning seat (10) and a support frame (11). The electronic flash therapy shell (2) is rotationally arranged at one end of the support frame (11), and the irradiation device (3) is located at the other end of the support frame (11).

9. A self-shielding device for radiotherapy according to claim 1, characterized in that: The support frame (11) is in an arc structure, and a guide groove (13) is formed in the inside of the support frame (11). The guide rail (300) is in an arc structure, and the guide rail (300) is arranged in the guide groove (13) and moves along the guide groove (13).

10. A self-shielding device for radiotherapy according to claim 9, characterized in that: ​

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