Radiotherapy equipment

Abstract

The invention provides radiotherapy equipment, which belongs to the technical field of medical instruments and comprises a base, a first bed board assembly and an electron linear accelerator which are arranged on the base, a second bed board assembly arranged at the end part of the first bed board assembly, and a head fixing assembly and a body fixing assembly which are arranged on the second bed board assembly, the electron linear accelerator is configured to emit X-rays. A radiotherapy bed of the radiotherapy equipment is composed of a first bed board assembly and a second bed board assembly, the positions of a back supporting plate and a head supporting plate of the second bed board assembly are adjustable, and when the radiotherapy equipment is used, the adjacent back supporting plates can be attached to each other or form a first avoiding gap; the head supporting plate and the adjacent back supporting plate can be attached to each other or form a second avoiding gap, so that the tumor or the operative wound of a radiotherapy patient is located in the avoiding gap, and the tumor or the wound of the patient is prevented from being extruded.

Description

Technical Field

[0001] This application belongs to the technical field of medical devices, and particularly relates to a radiotherapy device. Background Art

[0002] Radiotherapy is short for radiation therapy, which uses high-energy rays to kill cancer cells so as to achieve the purpose of treating tumors.

[0003] In order to facilitate the fixation of the patient's body position, reduce movement, and ensure the precise irradiation of the tumor area by rays, radiotherapy usually requires the patient to lie down at present.

[0004] For existing radiotherapy devices, their radiotherapy beds are usually of an integral plate structure and cannot be adjusted. For special patients, such as those with tumors on the back or those in the recovery period after back surgery, when lying flat on a conventional radiotherapy bed, it will compress the tumor or wound, causing pain to the patient and affecting treatment and recovery. Summary of the Invention

[0005] The embodiment of this application provides a radiotherapy device. By providing slots on the opposite surfaces of two connecting frames, a head support plate and several back support plates are inserted into the slots. The positions of the head support plate and the back support plates can be freely adjusted so that a first avoidance gap is formed between adjacent back support plates, and a second avoidance gap is formed between the head support plate and the adjacent back support plate, enabling the tumor or surgical wound of the radiotherapy patient to be located within the avoidance gap, thereby avoiding squeezing the patient's tumor or wound. This application solves the problem that for existing radiotherapy devices, the radiotherapy bed cannot be adjusted, and it may compress the patient's tumor or wound during radiotherapy, causing pain to the patient and affecting treatment and recovery.

[0006] The embodiment of this application provides a radiotherapy device, including a base, a first bed plate assembly and an electron linear accelerator arranged on the base, a second bed plate assembly arranged at the end of the first bed plate assembly, and a head fixing assembly and a body fixing assembly arranged on the second bed plate assembly. The electron linear accelerator is configured to emit X-rays; Wherein, the second bed plate assembly includes; Two relatively arranged connecting frames, slots are provided in the middle of the opposite surfaces of the two connecting frames. One end of the connecting frame is connected to the end of the first bed plate assembly, and the slot penetrates the other end of the connecting frame; Back support plates inserted into the two relatively arranged slots, adjacent back support plates are in contact with each other or form a first avoidance gap, and the body fixing assembly is arranged opposite to the back support plates to form an annular structure; A head support plate inserted into the two relatively arranged slots, the head support plate is in contact with the adjacent back support plate or forms a second avoidance gap, and the head fixing assembly is arranged on the head support plate.

[0007] In a feasible implementation, a clamping plate is arranged in the slot of the connecting frame, and a chamfer is arranged at one end of the clamping plate away from the first bedplate assembly; A screw hole is arranged on the outer wall of the connecting frame, a screw rod is screwed in the screw hole, the inner end of the screw rod is rotatably connected with the outer wall of the clamping plate, and the two clamping plates clamp the head support plate and several back support plates; A jack is arranged on the outer wall of the connecting frame, a limiting rod is inserted in the jack, and the inner end of the limiting rod is fixedly connected with the outer wall of the clamping plate.

[0008] In a feasible implementation, the body fixing assembly includes a fixing frame and several binding straps; The two fixing frames are respectively arranged on the two connecting frames, and the two ends of the binding strap are respectively connected with the two fixing frames; The binding strap corresponds to the position of the back support plate to form the annular structure.

[0009] In a feasible implementation, the head fixing assembly includes a first head fixing assembly, and the first head fixing assembly includes an air pump, a pressure gauge, a pipeline, a mounting plate, a telescopic cylinder and a silica gel pad; The two mounting plates are oppositely arranged on both sides of the head support plate, telescopic cylinders are arranged on the opposite surfaces of the two mounting plates, the telescopic ends of the telescopic cylinders on both sides are oppositely arranged, and the silica gel pad is rotatably arranged at the telescopic end of the telescopic cylinder; The air pump and the pressure gauge are both fixedly arranged on the head support plate, the exhaust end of the air pump is connected with one end of the pipeline, the other end of the pipeline is connected with the telescopic cylinder, and the pressure gauge is connected with the pipeline; A plurality of telescopic cylinders are arranged on the mounting plate, the plurality of telescopic cylinders are distributed in an arc shape, and a valve is arranged on the telescopic cylinder.

[0010] In a feasible implementation, the telescopic cylinder includes a first cylinder body and a second cylinder body, the second cylinder body is inserted into the first cylinder body, the valve is fixedly arranged on the first cylinder body, and the silica gel pad is rotatably arranged at the outer end of the second cylinder body; A fixing block is arranged in the first cylinder body, and a spring is fixedly arranged between the fixing block and the inner end of the second cylinder body.

[0011] In a feasible implementation, the head fixing assembly further includes a second head fixing assembly, and the second head fixing assembly includes a buckle and a tolerance mask; The buckle is arranged in the middle of the head support plate, a plurality of buckles are distributed in a semicircle, and the outer side of the tolerance mask is clamped with the buckle.

[0012] In a feasible implementation, the first bedplate assembly includes a lower plate body, vertical plates, and a plate body; The two vertical plates are respectively fixedly provided on both sides of the lower plate body, and the plate body is arranged between the two vertical plates.

[0013] In a feasible implementation, the first bedplate assembly further includes a first telescopic mechanism and a second telescopic mechanism; Arc-shaped grooves are provided on the opposite surfaces of the two vertical plates, sliding rollers are provided on both sides of the plate body, and a plurality of the sliding rollers on the same side are distributed in an arc shape matching the arc-shaped grooves. The outer ends of the sliding rollers are inserted into the arc-shaped grooves, and the outer walls of the sliding rollers are slidably connected to the inner walls of the arc-shaped grooves; One end of the second telescopic mechanism is hinged to the lower plate body, and the other end is hinged to the plate body; The plate body is hinged to the connecting frame. One end of the first telescopic mechanism is hinged to the plate body, and the other end is hinged to the side wall of the connecting frame.

[0014] In a feasible implementation, the radiotherapy device further includes a lifting mechanism, and the lifting mechanism includes a connecting seat and a lifting assembly; The connecting seat is arranged on the base, the lifting assembly is fixedly arranged on the connecting seat, and the telescopic end of the lifting assembly is fixedly connected to the lower plate body.

[0015] In a feasible implementation, the base includes a bottom plate, a lead screw, a first cover body, and a second cover body; The lead screw is fixedly arranged on the bottom plate. A threaded hole matching the lead screw is provided in the middle of the connecting seat, and the screw rod of the lead screw is threadedly connected to the threaded hole of the connecting seat; The first cover body and the second cover body are respectively fixedly arranged at both ends of the bottom plate, and both ends of the connecting seat are respectively inserted into the first cover body and the second cover body; The electron linear accelerator is fixedly arranged on the first cover body or the second cover body.

[0016] A radiotherapy device provided by an embodiment of the present application. The radiotherapy bed is composed of a first bedplate assembly and a second bedplate assembly. Among them, the positions of the back support plate and the head support plate of the second bedplate assembly are adjustable. During use, adjacent back support plates can be mutually attached or form a first avoidance gap, and the head support plate can be mutually attached to or form a second avoidance gap with the adjacent back support plate, so that the tumor or surgical wound of the radiotherapy patient is located in the avoidance gap, thereby avoiding squeezing the patient's tumor or wound. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the radiotherapy device provided by the present application; Figure 2 is a cross-sectional view of a radiotherapy device; Figure 3 is a schematic diagram of a connecting frame and its connecting structure; Figure 4 is a schematic diagram of a lower plate body and its connecting structure; Figure 5 is a schematic diagram of a plate body and its connecting structure; Figure 6 is a schematic diagram of the structure of a first head fixing assembly; Figure 7 is a schematic diagram of a telescopic cylinder and its connecting structure; Figure 8 is a schematic diagram of the structure of a second head fixing assembly.

[0018] Explanation of reference numerals: 100 - base; 200 - first bed plate assembly; 300 - electron linear accelerator; 400 - second bed plate assembly; 500 - head fixing assembly; 600 - body fixing assembly; 700 - lifting mechanism; 110 - bottom plate; 120 - lead screw; 130 - first cover; 140 - second cover; 210 - lower plate body; 220 - vertical plate; 230 - plate body; 240 - first telescopic mechanism; 250 - second telescopic mechanism; 260 - arc groove; 270 - sliding roller; 410 - connecting frame; 420 - back support plate; 430 - head support plate; 510 - first head fixing assembly; 520 - second head fixing assembly; 610 - fixing frame; 620 - binding strap; 710 - connecting seat; 720 - lifting assembly; 411 - slot; 412 - clamping plate; 413 - chamfer; 414 - screw hole; 415 - screw; 416 - jack; 417 - limiting rod; 511 - air pump; 512 - pressure gauge; 513 - pipeline; 514 - mounting plate; 515 - telescopic cylinder; 516 - silica gel pad; 517 - valve; 518 - fixing block; 519 - spring; 521 - buckle; 522 - tolerance mask. Detailed implementation manners

[0019] In order to enable those skilled in the art of the present technology to better understand the technical solutions in this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0020] Radiotherapy usually requires the patient to lie down in order to fix the body position, reduce movement, and ensure that the radiation accurately irradiates the tumor area. The lying position helps to control respiratory movement, especially in the treatment of the chest and abdomen, reducing the impact of organ displacement on the treatment. Therefore, the conventional radiotherapy position is mainly lying down. For special patients, such as those with tumors on the back or those in the recovery period after back surgery, when lying flat on a conventional radiotherapy bed, the tumor or wound will be compressed, causing pain to the patient and affecting treatment and recovery. The radiotherapy device provided in this application has adjustable positions for the back support plate 420 and the head support plate 430. During use, adjacent back support plates 420 can be made to fit together or form a first avoidance gap, and the head support plate 430 can be made to fit with the adjacent back support plate 420 or form a second avoidance gap, so that the tumor or surgical wound of the radiotherapy patient is located within the avoidance gap, thus avoiding squeezing the patient's tumor or wound.

[0021] The following will detail the specific structure of the radiotherapy device provided in this application with reference to the accompanying drawings.

[0022] Embodiment 1:

[0023] Refer to Figures 1-5 As shown, the embodiment of this application provides a radiotherapy device, including a base 100. The base 100 can be a rectangular seat body. As Figure 1 and Figure 2 shown, a first bed plate assembly 200 and a linear electron accelerator 300 are provided on the base 100. The linear electron accelerator 300 is fixedly arranged at one end of the base 100. The linear electron accelerator 300 consists of a support base and an accelerator. The support base is fixedly arranged on the base 100, and the accelerator is fixedly arranged on the top of the support base. The model of the accelerator is not limited. The accelerator uses a microwave electromagnetic field to accelerate electrons to form high-energy X-rays and electron beams. During treatment, the accelerator emits X-rays of a specific shape to irradiate the tumor tissue; A second bed plate assembly 400 is provided at the end of the first bed plate assembly 200. The first bed plate assembly 200 and the second bed plate assembly 400 form a radiotherapy bed. In order to fix the patient's body, a head fixing assembly 500 and a body fixing assembly 600 are also provided on the second bed plate assembly 400; The second bed plate assembly 400 includes a connecting frame 410, a back support plate 420, and a head support plate 430; The connecting frame 410 is a square rod structure, which can be made of stainless steel and has a certain strength. Two connecting frames 410 are arranged opposite to each other. Slots 411 are provided in the middle of the opposite surfaces of the two connecting frames 410. The slots 411 are rectangular groove bodies. One end of the connecting frame 410 in the length direction is connected to the end of the first bed plate assembly 200, and the slots 411 penetrate through the other end of the connecting frame 410 in the length direction; Both the back support plate 420 and the head support plate 430 can be rectangular plate bodies. To improve comfort, a leather pad can be provided on the outer surface of the plate body. To be applicable to patients with mild spinal deformities, the back support plate 420 includes a straight plate body and curved plate bodies with various radian; A plurality of back support plates 420 are inserted into two slots 411 from the other end in the length direction of the connecting frame 410. Adjacent back support plates 420 are attached to each other or form a first avoidance gap, and the width of the first avoidance gap can be freely adjusted to ensure the support of the patient's back and avoid the patient's back tumors or wounds. The body fixing component 600 is disposed opposite to the back support plate 420 to form an annular structure for binding the patient's body; The head support plate 430 is inserted into two slots 411 from the other end in the length direction of the connecting frame 410. The head support plate 430 is attached to the adjacent back support plate 420 or forms a second avoidance gap, and the width of the second avoidance gap can be freely adjusted to ensure the support of the patient's head and avoid the patient's shoulder tumors or wounds. The head fixing component 500 is disposed on the head support plate 430, and the head fixing component 500 is used to fix the patient's head.

[0024] A radiotherapy device provided by an embodiment of the present application. The radiotherapy bed is composed of a first bed plate component 200 and a second bed plate component 400. Among them, the positions of the back support plate 420 and the head support plate 430 of the second bed plate component 400 are adjustable. During use, adjacent back support plates 420 can be attached to each other or form a first avoidance gap, and the head support plate 430 can be attached to the adjacent back support plate 420 or form a second avoidance gap, so that the tumor or surgical wound of the radiotherapy patient is located in the avoidance gap, thereby avoiding squeezing the patient's tumor or wound.

[0025] Further, referring to Figure 3 As shown, in order to stably fix the back support plate 420 and the head support plate 430, a clamping plate 412 is provided in the slot 411 of the connecting frame 410. The clamping plate 412 is a rectangular plate body, and the clamping plate 412 is in clearance fit with the slot 411. A chamfer 413 is provided at one end of the clamping plate 412 away from the first bed plate component 200, and the chamfer 413 is arc-shaped, so as to facilitate the insertion of the back support plate 420 and the head support plate 430; A screw hole 414 is provided on the outer wall of the connecting frame 410, and a screw 415 is screwed in the screw hole 414. The inner end of the screw 415 is rotatably connected to the outer wall of the clamping plate 412. The two clamping plates 412 clamp the head support plate 430 and a plurality of the back support plates 420; When the screw rod 415 is rotated clockwise, the screw rod 415 pushes the clamping plate 412 inward, and the clamping plate 412 moves inward in the slot 411, so that the two clamping plates 412 clamp the head support plate 430 and several of the back support plates 420, fixing the head support plate 430 and the back support plates 420; conversely, when the screw rod 415 is rotated counterclockwise, the clamping plate 412 moves outward, releasing the head support plate 430 and several of the back support plates 420; Further, a jack 416 is provided on the outer wall of the connecting frame 410, a limiting rod 417 is inserted into the jack 416, the limiting rod 417 is a conventional rod body, and the inner end of the limiting rod 417 is fixedly connected to the outer wall of the clamping plate 412. By inserting the limiting rod 417 into the jack 416, the inclination of the clamping plate 412 is avoided, ensuring the lateral movement of the clamping plate 412.

[0026] Refer to Figure 3 As shown, in some embodiments, the body fixing assembly 600 includes a fixing frame 610 and several binding straps 620; The fixing frame 610 can be an arcuate metal rod, the length of which is the same as that of the connecting frame 410. The two fixing frames 610 are respectively arranged on the two connecting frames 410. The binding strap 620 can be an elastic band, and the two ends of the binding strap 620 are respectively connected to the two fixing frames 610; The binding strap 620 corresponds to the position of the back support plate 420; When fixing the patient's body, adjust the position of the back support plate 420 to avoid touching the patient's wound position. Then, fix the binding strap 620 at the corresponding position of the back support plate 420, so that the binding strap 620 and the corresponding back support plate 420 form the annular structure to fix the patient's body.

[0027] Refer to Figures 2-5 As shown, in some embodiments, the first bed plate assembly 200 includes a lower plate body 210, a vertical plate 220, and a plate body 230; The lower plate body 210 is a horizontally arranged square plate body, and the two vertical plates 220 are respectively fixedly arranged on both sides of the lower plate body 210. The plate body 230 is a rectangular plate body, the upper surface of which is a plane, and the plate body 230 is arranged between the two vertical plates 220.

[0028] Further, in order to adjust the patient's lying posture, the first bed plate assembly 200 further includes a first telescopic mechanism 240 and a second telescopic mechanism 250. The first telescopic mechanism 240 and the second telescopic mechanism 250 can both be hydraulic telescopic rods or electric push rods; Arc-shaped grooves 260 are provided on the opposite surfaces of the two vertical plates 220. The arc-shaped grooves 260 are circular arcs. Sliding rollers 270 are provided on both sides of the plate body 230. The sliding rollers 270 can be composed of a rod body and a ball bearing. A plurality of the sliding rollers 270 on the same side are distributed in an arc shape matching the arc-shaped groove 260. The outer ends of the sliding rollers 270 are inserted into the arc-shaped grooves 260, and the outer walls of the sliding rollers 270 are slidably connected to the inner walls of the arc-shaped grooves 260; One end of the second telescopic mechanism 250 is hinged to the lower plate body 210, and the other end is hinged to the plate body 230; The plate body 230 is hinged to the connecting frame 410. One end of the first telescopic mechanism 240 is hinged to the plate body 230, and the other end is hinged to the side wall of the connecting frame 410 As Figure 2 As shown, when the second telescopic mechanism 250 extends, the second telescopic mechanism 250 pushes the plate body 230 to move left and upward. The left end of the plate body 230 is lifted, and the sliding roller 270 slides left and upward in the arc-shaped groove 260; conversely, when the second telescopic mechanism 250 contracts, the second telescopic mechanism 250 pulls the plate body 230 to move right and downward. The left end of the plate body 230 descends, and the sliding roller 270 moves right and downward in the arc-shaped groove 260; When the first telescopic mechanism 240 extends, the right end of the second bedplate assembly 400 is lifted. When the first telescopic mechanism 240 contracts, the right end of the second bedplate assembly 400 descends, thereby adjusting the lying posture of the patient to meet the radiotherapy needs of different patients.

[0029] As Figure 4 As shown, in one embodiment, the radiotherapy device further includes a lifting mechanism 700. The lifting mechanism 700 includes a connecting seat 710 and a lifting assembly 720; The connecting seat 710 can be a square seat. The connecting seat 710 is arranged on the base 100. The lifting assembly 720 can be an electric telescopic rod, a cylinder or a hydraulic telescopic rod, etc. The lifting assembly 720 is fixedly arranged on the connecting seat 710. The telescopic end of the lifting assembly 720 is fixedly connected to the lower plate body 210. The radiotherapy bed is lifted by controlling the lifting assembly 720, so as to facilitate adjusting the height position of the patient and facilitate radiotherapy.

[0030] As Figure 1 And Figure 2 As shown, in one embodiment, the base 100 includes a bottom plate 110, a lead screw 120, a first cover body 130 and a second cover body 140; One end of the lead screw 120 is rotatably connected to the connecting seat, the connecting seat is fixedly arranged on the bottom plate 110, the other end of the lead screw 120 is connected to the output end of the motor, the motor can be a stepper motor, a screw hole matching with the lead screw 120 is arranged in the middle of the connecting seat 710, the screw of the lead screw 120 is screwed with the screw hole, a sliding groove is arranged on the lower surface of the connecting seat 710, a sliding rail is arranged on the upper surface of the bottom plate 110, and the sliding rail is slidably connected with the sliding groove; During radiotherapy, the radiotherapy bed is driven by the lead screw 120 to move horizontally, so that the patient reaches the irradiation position of the electron linear accelerator 300; Both the first cover body 130 and the second cover body 140 are square cover bodies, which have a certain strength and allow stepping on. The first cover body 130 and the second cover body 140 are respectively fixedly arranged at both ends of the bottom plate 110, and both ends of the connecting seat 710 are respectively inserted into the first cover body 130 and the second cover body 140, so as to improve the safety and aesthetics of the body position fixing device; The electron linear accelerator 300 is fixedly arranged on the first cover body 130 or the second cover body 140.

[0031] Embodiment 2:

[0032] Referring to Figure 6 and Figure 7 as shown in Figure 6 In some embodiments, A in the figure is a patient head model. The head fixing assembly 500 includes a first head fixing assembly 510, and the first head fixing assembly 510 includes an air pump 511, a pressure gauge 512, a pipeline 513, a mounting plate 514, a telescopic cylinder 515 and a silica gel pad 516; The mounting plate 514 is a square plate body. Two mounting plates 514 are oppositely arranged on both sides of the upper surface of the head support plate 430. Telescopic cylinders 515 are arranged on the opposite surfaces of the two mounting plates 514. The telescopic ends of the telescopic cylinders 515 on both sides are oppositely arranged. The silica gel pad 516 is rotatably arranged at the telescopic end of the telescopic cylinder 515. The silica gel pad 516 can be connected to the telescopic cylinder 515 through a universal joint, so that the silica gel pad 516 can rotate a certain angle in any direction relative to the telescopic cylinder 515, which is beneficial to stably fit the patient's head; The air pump 511 and the pressure gauge 512 are both conventional components. The air pump 511 and the pressure gauge 512 are both fixedly arranged on the lower surface or side surface of the head support plate 430 to avoid contacting the patient. The exhaust end of the air pump 511 is connected to one end of the two pipelines 513 through a tee joint. The other ends of the two pipelines 513 are respectively connected to the telescopic cylinders 515 on both sides. The pressure gauge 512 is connected to the pipeline 513 to facilitate detecting the air pressure and controlling the clamping force on the patient's head; A plurality of the telescopic cylinders 515 are provided on each of the mounting plates 514, and the plurality of telescopic cylinders 515 are distributed in an arc shape so that the plurality of telescopic cylinders 515 surround the patient's ear and clamp the patient's face; For patients with buccal tumors, in order to avoid touching the affected area, a valve 517 is provided on each of the telescopic cylinders 515. The telescopic cylinder 515 is controlled to expand and contract through the valve 517. During use, the valve 517 of the telescopic cylinder 515 facing the patient's affected area is closed, and then the air pump 511 is turned on to inflate the other telescopic cylinders 515 so that the plurality of silica gel pads 516 on both sides of the patient's head fit the patient's side face. When the reading of the pressure gauge 512 reaches a certain set range, the air pump 511 is turned off, thereby stably fixing the patient's head.

[0033] Further, referring to Figure 7 As shown, in some embodiments, the telescopic cylinder 515 includes a first cylinder body and a second cylinder body. The second cylinder body is inserted into the first cylinder body. The valve 517 is fixedly provided at one end of the first cylinder body. The second cylinder body penetrates through the other end of the first cylinder body. The silica gel pad 516 is rotatably provided at the outer end of the second cylinder body; A fixing block 518 is provided in the first cylinder body. The fixing block 518 can be a fixing rod. The fixing block 518 does not affect the air flow in the first cylinder body. A spring 519 is provided in the first cylinder body. Both ends of the spring 519 are connected to the fixing block 518 and the inner end of the second cylinder body respectively; When the telescopic cylinder 515 is inflated and elongated, the telescopic cylinder 515 is stretched, applying a reverse elastic force to the second cylinder body; when the valve on the pipeline 513 is opened for deflation, the second cylinder body quickly resets under the elastic force of the spring 519, driving the silica gel pad 516 away from the patient, thereby facilitating use.

[0034] Embodiment Three:

[0035] Referring to Figure 8 As shown, in some embodiments, the head fixing assembly 500 further includes a second head fixing assembly 520. The second head fixing assembly 520 includes a buckle 521 and a tolerance mask 522; The buckle 521 can be elastic. The buckle 521 is provided in the middle of the head support plate 430. The plurality of buckles 521 are distributed in a semicircular shape and match the contour of a conventional patient's head. The tolerance mask 522 is a thermoplastic mask customized for each patient. The outer side of the tolerance mask 522 is snapped onto the buckle 521 to fix the patient's head.

[0036] As recorded by the above technical features, the working principle of the radiotherapy device provided by the present application in the actual application scenario is: Before use, assemble the radiotherapy bed. When the patient can lie flat completely, insert a number of back support plates 420 and head support plates 430 into the slots 411 in sequence. The adjacent back support plates 420 are in contact with each other, and the head support plate 430 is in contact with the adjacent back support plate 420. Then, rotate the screw 415 clockwise to make the two clamping plates 412 clamp the head support plate 430 and a number of the back support plates 420, so as to fix the head support plate 430 and the back support plates 420, thus forming a conventional radiotherapy bed; When there are tumors or wounds on the patient's back or shoulder and the patient cannot lie flat completely, adjust the head support plate 430 and the back support plates 420 according to the patient's tumors or wounds, so as to form a first avoidance gap between the adjacent back support plates 420, or form a second avoidance gap between the head support plate 430 and the adjacent back support plate 420, so that the tumors or surgical wounds of the radiotherapy patient are located in the avoidance gap, thus avoiding squeezing the patient's tumors or wounds. Then, by rotating the screw 415, fix the head support plate 430 and the back support plates 420; Fix the binding straps 620 at the corresponding positions of the back support plates 420, so that the binding straps 620 are circularly fixed to the patient's body with the corresponding back support plates 420, and fix the patient's body through a plurality of binding straps 620; When there is no wound on the patient's head, the first head fixing assembly 510 or the second head fixing assembly 520 can be used to fix the patient's head; when there are wounds on the patient's head or face, the first head fixing assembly 510 is preferably used to fix the patient's head. When in use, close the valve 517 on the telescopic cylinder 515 facing the patient's affected area, and then turn on the air pump 511 to inflate the other telescopic cylinders 515, so that a plurality of silica gel pads 516 on both sides of the patient's head fit the patient's side face. When the reading of the pressure gauge 512 reaches a certain set range, turn off the air pump 511, thus stably fixing the patient's head.

[0037] After the patient is stably fixed, turn on the lead screw 120 to move the patient to the irradiation position of the radiotherapy equipment for radiotherapy.

[0038] For the radiotherapy equipment provided by the present application, the positions of the back support plates 420 and the head support plates 430 are adjustable. When in use, the adjacent back support plates 420 can be in contact with each other or form a first avoidance gap, and the head support plate 430 can be in contact with the adjacent back support plate 420 or form a second avoidance gap, so that the tumors or surgical wounds of the radiotherapy patient are located in the avoidance gap, thus avoiding squeezing the patient's tumors or wounds. The present application solves the problem that in the existing radiotherapy equipment, the radiotherapy bed cannot be adjusted, and the patient's tumors or wounds may be compressed during radiotherapy, resulting in patient pain and affecting treatment and recovery.

[0039] It is easily understandable that those skilled in the art can combine, split, reorganize, etc. the embodiments provided in this application to obtain other embodiments on the basis of several embodiments provided in this application, and these embodiments do not exceed the protection scope of this application.

[0040] The above specific implementation manners have further elaborated in detail the purpose, technical solutions and beneficial effects of the embodiments of this application. It should be understood that the above is only the specific implementation manners of the embodiments of this application, and is not used to limit the protection scope of the embodiments of this application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the embodiments of this application shall be included within the protection scope of the embodiments of this application.

Claims

1. A radiotherapy device, characterized in that: It includes a base (100), a first bedplate assembly (200) and an electronic linear accelerator (300) disposed on the base (100), a second bedplate assembly (400) disposed at the end of the first bedplate assembly (200), and a head fixing assembly (500) and a body fixing assembly (600) disposed on the second bedplate assembly (400), and the electronic linear accelerator (300) is configured to emit X-rays; Wherein, the second bedplate assembly (400) includes; Two connecting frames (410) arranged oppositely, slots (411) are provided in the middle of the opposite surfaces of the two connecting frames (410), one end of the connecting frame (410) is connected to the end of the first bedplate assembly (200), and the slot (411) penetrates through the other end of the connecting frame (410); A back support plate (420) inserted into the opposite two slots (411), adjacent back support plates (420) are in contact with each other or form a first avoidance gap, and the body fixing assembly (600) is arranged opposite to the back support plate (420) to form an annular structure; A head support plate (430) inserted into the opposite two slots (411), the head support plate (430) is in contact with the adjacent back support plate (420) or forms a second avoidance gap, and the head fixing assembly (500) is arranged on the head support plate (430).

2. The radiotherapy device according to claim 1, wherein: A clamping plate (412) is provided in the slot (411) of the connecting frame (410), and a chamfer (413) is provided at one end of the clamping plate (412) away from the first bedplate assembly (200); A screw hole (414) is provided on the outer wall of the connecting frame (410), a screw (415) is screwed in the screw hole (414), the inner end of the screw (415) is rotatably connected to the outer wall of the clamping plate (412), and the two clamping plates (412) clamp the head support plate (430) and several back support plates (420); A jack (416) is provided on the outer wall of the connecting frame (410), a limiting rod (417) is inserted into the jack (416), and the inner end of the limiting rod (417) is fixedly connected to the outer wall of the clamping plate (412).

3. The radiotherapy device according to claim 1, wherein: The body fixing assembly (600) includes a fixing frame (610) and several binding straps (620); The two fixing frames (610) are respectively arranged on the two connecting frames (410), and the two ends of the binding strap (620) are respectively connected to the two fixing frames (610); The binding strap (620) corresponds to the position of the back support plate (420) to form the annular structure.

4. The radiotherapy device according to claim 1, wherein: The head fixing assembly (500) includes a first head fixing assembly (510), and the first head fixing assembly (510) includes an air pump (511), a pressure gauge (512), a pipeline (513), a mounting plate (514), a telescopic cylinder (515), and a silica gel pad (516); The two mounting plates (514) are oppositely arranged on both sides of the head support plate (430). The telescopic cylinders (515) are arranged on the opposite surfaces of the two mounting plates (514). The telescopic ends of the telescopic cylinders (515) on both sides are oppositely arranged, and the silica gel pad (516) is rotatably arranged at the telescopic end of the telescopic cylinder (515); The air pump (511) and the pressure gauge (512) are both fixed on the head support plate (430). The exhaust end of the air pump (511) is connected to one end of the pipeline (513), the other end of the pipeline (513) is connected to the telescopic cylinder (515), and the pressure gauge (512) is connected to the pipeline (513); A plurality of the telescopic cylinders (515) are arranged on the mounting plate (514), and the plurality of telescopic cylinders (515) are distributed in an arc shape. A valve (517) is arranged on the telescopic cylinder (515).

5. The radiotherapy device according to claim 4, wherein: The telescopic cylinder (515) includes a first cylinder body and a second cylinder body. The second cylinder body is inserted into the first cylinder body. The valve (517) is fixed on the first cylinder body, and the silica gel pad (516) is rotatably arranged at the outer end of the second cylinder body; A fixing block (518) is arranged in the first cylinder body, and a spring (519) is fixed between the fixing block (518) and the inner end of the second cylinder body.

6. The radiotherapy device according to claim 1, wherein: The head fixing assembly (500) further includes a second head fixing assembly (520), and the second head fixing assembly (520) includes a buckle (521) and a tolerance mask (522); The buckle (521) is arranged in the middle of the head support plate (430), and a plurality of the buckles (521) are distributed in a semicircle. The outer side of the tolerance mask (522) is clamped with the buckle (521).

7. The radiotherapy device according to any one of claims 1-6, wherein: The first bedplate assembly (200) includes a lower plate body (210), a vertical plate (220), and a plate body (230); The two vertical plates (220) are respectively and oppositely fixed on both sides of the lower plate body (210), and the plate body (230) is arranged between the two vertical plates (220).

8. The radiotherapy device according to claim 7, wherein: The first bedplate assembly (200) further includes a first telescopic mechanism (240) and a second telescopic mechanism (250); Arc-shaped grooves (260) are provided on the opposite surfaces of the two vertical plates (220). Sliding rollers (270) are provided on both sides of the plate body (230). A plurality of the sliding rollers (270) on the same side are distributed in an arc shape matching the arc-shaped groove (260). The outer ends of the sliding rollers (270) are inserted into the arc-shaped groove (260), and the outer walls of the sliding rollers (270) are slidably connected to the inner walls of the arc-shaped groove (260). One end of the second telescopic mechanism (250) is hinged to the lower plate body (210), and the other end is hinged to the plate body (230). The plate body (230) is hinged to the connecting frame (410). One end of the first telescopic mechanism (240) is hinged to the plate body (230), and the other end is hinged to the side wall of the connecting frame (410).

9. The radiotherapy device according to claim 8, wherein: The radiotherapy device further includes a lifting mechanism (700), and the lifting mechanism (700) includes a connecting seat (710) and a lifting assembly (720). The connecting seat (710) is arranged on the base (100), the lifting assembly (720) is fixedly arranged on the connecting seat (710), and the telescopic end of the lifting assembly (720) is fixedly connected to the lower plate body (210).

10. The radiotherapy device according to claim 8, wherein: The base (100) includes a bottom plate (110), a lead screw (120), a first cover body (130) and a second cover body (140). The lead screw (120) is fixedly arranged on the bottom plate (110). A screw hole matching the lead screw (120) is provided in the middle of the connecting seat (710), and the screw rod of the lead screw (120) is screwed into the screw hole of the connecting seat (710). The first cover body (130) and the second cover body (140) are respectively fixedly arranged at both ends of the bottom plate (110), and both ends of the connecting seat (710) are respectively inserted into the first cover body (130) and the second cover body (140). The electron linear accelerator (300) is fixedly arranged on the first cover body (130) or the second cover body (140).

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