A patient support device for boron neutron capture therapy

Abstract

The present application relates to boron neutron capture therapy auxiliary equipment technical field, disclose a kind of for boron neutron capture therapy patient support device, comprising: support seat and setting on support seat backing plate, further comprising: adjusting piece, fixed above pad plate;Locking piece, fixed in adjusting piece;Hip sub-bed plate, fixed above adjusting piece;Back sub-bed plate, fixed above adjusting piece;Leg sub-bed plate, fixed above adjusting piece;Head sub-bed plate, fixed above adjusting piece;Compensation piece, fixed above hip sub-bed plate, back sub-bed plate, leg sub-bed plate and head sub-bed plate;The present application is through the structure of adjusting piece, can realize the flexible switching of bed body form and chair body form, through pure mechanical linkage type compensation structure, according to human respiratory deformation completes autonomous dynamic error compensation, without external sensing controller device, structure stability is strong.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment technology for boron neutron capture therapy, and more specifically to a patient support device for boron neutron capture therapy. Background Technology

[0002] Boron neutron capture therapy (BNCT) is a precision radiotherapy technique for malignant tumors. Its core principle is to utilize the specific accumulation of boron compounds within tumor cells, triggering a nuclear reaction through neutron beam irradiation, thereby precisely killing tumor cells with minimal damage to surrounding normal tissues. During BNCT treatment, the patient needs to maintain a fixed posture so that the lesion site is precisely aligned with the neutron beam; therefore, the patient support device is a key auxiliary device in the treatment system.

[0003] Existing patient support devices for BNCT treatment are mainly divided into two types: one is the treatment bed, which allows patients to lie flat for treatment, but it has problems with poor posture adjustment flexibility and insufficient adaptability for patients who tolerate sitting posture well; the other is the treatment chair, which is mainly suitable for patients whose lesions are located in the head and neck and who can maintain a sitting posture independently. When patients are sitting for treatment, they have relatively large body movement space, but for patients who cannot maintain a sitting posture for a long time, the comfort is extremely poor, and it is difficult to adapt to the treatment of lesions in the trunk, limbs and other parts of the body.

[0004] Existing treatment beds and chairs are all fixed structures, providing only single-posture support. They cannot be flexibly adjusted according to the patient's lesion location and the patient's wishes, resulting in insufficient ergonomic adaptability and a need to improve comfort. The support structures of existing patient support devices are mostly one-piece designs, unable to be fine-tuned according to the patient's body contours and stress conditions, making it difficult to assist in precise patient positioning. Furthermore, existing devices lack specific protective structures against neutron beams, potentially exposing non-target areas to additional radiation, increasing the risk of radiation damage. Additionally, existing devices lack effective auxiliary positioning structures, making it difficult to ensure precise alignment of the patient's target area with the beam, affecting treatment efficacy. Moreover, the sub-bed panels of existing patient support devices are mostly fixedly arranged, unable to move laterally or be expanded, limiting their adaptability and making it difficult to meet the support needs of patients of different body types. Furthermore, the posture adjustment of existing patient support devices relies heavily on manual control by operators, lacking supporting scanning detection and intelligent control mechanisms. This prevents precise, automated posture adjustment based on specific patient body data and tumor location, resulting in low adjustment efficiency and significant posture adjustment errors. Finally, the lack of consideration for patient wishes further necessitates improvements in comfort and adaptability. Summary of the Invention

[0005] This invention provides a patient support device for boron neutron capture therapy, which can flexibly switch between bed and chair forms.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: In a first aspect, a patient support device for boron neutron capture therapy includes: a support base and a pad disposed on the support base, and further includes: Adjustable parts are fixed above the pad; locking parts are fixed inside the adjustable parts; hip sub-bed board is fixed above the adjustable parts; back sub-bed board is fixed above the adjustable parts; leg sub-bed board is fixed above the adjustable parts; head sub-bed board is fixed above the adjustable parts; compensating parts are fixed above the hip sub-bed board, back sub-bed board, leg sub-bed board, and head sub-bed board; expansion openings are provided on both sides of the hip sub-bed board, back sub-bed board, leg sub-bed board, and head sub-bed board. Multiple compensation seats are arranged in an array on the buttocks sub-bed, back sub-bed, leg sub-bed, and head sub-bed; a piston chamber is formed within the compensation seat; a first piston body is slidably disposed within the piston chamber; a piston rod is fixed at one end to the first piston body and extends out of the piston chamber at the other end; a square plate is fixed to the end of the piston rod away from the first piston body; a second piston body is slidably disposed within the piston chamber and located directly below the first piston body; a main spring is fixed at one end to the bottom of the piston chamber and at the other end to the lower part of the second piston body; a sliding seat is fixed above the second piston body; a sliding... A groove is formed on the slide block; a leaf spring is located on the slide block; a slider is slidably disposed in the groove and fixed above the leaf spring; a power gear plate is fixed below the first piston body; a linkage sleeve is sleeved on the power gear plate; a linkage gear plate is slidably disposed in the linkage sleeve and meshes with the power gear plate; a support is fixed on the slide block; a transmission gear set is fixed on the linkage sleeve; a transmission shaft is rotatably disposed on the support; a transmission gear is fixed on the transmission shaft; a double-threaded rod is threaded into the leaf spring; and a first bevel gear set has an output bevel gear fixed on the transmission shaft and an output bevel gear fixed on the double-threaded rod.

[0007] Furthermore, the compensation component also includes: The linkage box is fixed on the linkage sleeve block; the linkage piston has one end slidably embedded in the linkage box and the other end fixed on the linkage tooth plate; the linkage spring has one end fixed in the linkage box and the other end fixed on the linkage piston; the linkage electromagnet is fixed in the linkage box; and the linkage magnetic plate is fixed on the linkage piston and located in the linkage box.

[0008] Furthermore, the compensation component also includes: The first guide rod is fixed at one end to the bottom of the square plate and the other end is slidably embedded in the compensation seat; the guide seat is fixed on both sides of the linkage block; the second guide rod is fixed above the second piston body and slidably inserted into the guide seat; the limiting plate is fixed above the second guide rod; the guide spring is sleeved on the second guide rod, with one end fixed above the second piston body and the other end fixed on the limiting plate; the connecting rod is fixed at both ends to the first piston body and the second piston body.

[0009] Furthermore, the leaf spring includes: The stacked plate is fixed above the slider and threaded onto the bidirectional threaded rod; the spring clip is fixedly sleeved onto the stacked plate; the spring seat is fixedly sleeved onto the stacked plate and bolted to the bottom of the first piston body.

[0010] Furthermore, the adjusting member includes: The hip support plate is fixed to the pad; the back support plate is rotatably mounted on one end of the hip support plate; the leg support plate is rotatably mounted on the other end of the hip support plate; and the head support plate is rotatably mounted on the end of the back support plate away from the hip support plate.

[0011] Furthermore, the adjusting member also includes: The first rotating spindle is fixed to the leg support plate and rotatably embedded in one end of the hip support plate; the second rotating spindle is fixed to the back support plate and rotatably embedded in the other end of the hip support plate; the third rotating spindle is fixed to the head support plate and rotatably embedded in the end of the back support plate away from the hip support plate; the hydraulic box is fixed to both ends of the hip support plate and to the end of the back support plate away from the hip support plate; the angle adjustment box is fixed to the hydraulic box and rotatably sleeved on the first, second, and third rotating spindles; the layered plate is fixed inside the angle adjustment box and its end face is sealed against the first, second, and third rotating spindles; the crank piston is fixed to the first, second, and third rotating spindles and its outer side is sealed against the inner wall of the angle adjustment box; the fluid replacement hole is opened on the inner bottom of the hydraulic box and the angle adjustment box; the fluid replacement pipe is fixed at one end above the end of the hydraulic box away from the angle adjustment box and at the other end above the angle adjustment box; the hydraulic piston is slidably disposed inside the hydraulic box.

[0012] Furthermore, the adjusting member also includes: The drive motor is fixed below the hydraulic box; the side support plate is fixed below the hydraulic box; the main gear has its gear shaft fixed on the drive motor and is rotatably mounted on the side support plate; the intermediate gear has its gear shaft rotatably mounted on the side support plate and meshes with the main gear; the drive threaded rod is rotatably mounted inside the hydraulic box and its threads are inserted into the hydraulic piston; and the auxiliary gear is fixedly mounted on the drive threaded rod.

[0013] Furthermore, the adjusting member also includes: The system comprises: a displacement box, fixed inside the hip support plate, back support plate, leg support plate, and head support plate; an isolation plate, fixed at both ends of the hip support plate, back support plate, leg support plate, and head support plate; a displacement motor, fixed to the hip support plate, back support plate, leg support plate, and head support plate; a displacement threaded rod, rotatably mounted on the isolation plate; a first displacement seat, slidably mounted inside the displacement box, threadedly connected to the displacement threaded rod, and fixed below the hip sub-bed plate, back sub-bed plate, leg sub-bed plate, and head sub-bed plate; a second bevel gear set, with the input bevel gear fixed to the displacement motor and the output bevel gear fixed to the displacement threaded rod; sliding rods, respectively fixed inside the hip support plate, back support plate, leg support plate, and head support plate; a second displacement seat, slidably mounted on the sliding rod; and a first hydraulic telescopic rod, with its non-telescopic end fixed inside the first and second displacement seats and its telescopic end fixed below the hip sub-bed plate, back sub-bed plate, leg sub-bed plate, and head sub-bed plate.

[0014] Furthermore, the locking element includes: The locking gear is fixed to the first rotating spindle, the second rotating spindle, the third rotating spindle, and the displacement threaded rod; the third guide rod is fixed to both ends of the hip support plate, and to the end of the back support plate away from the hip support plate, and is fixed inside the displacement box; the locking seat is slidably sleeved on the third guide rod; the locking tooth groove is formed on the locking seat and meshes with the locking gear; the locking spring is fixed at one end to the locking seat and at the other end to the hip support plate, the back support plate, and the displacement box; the locking magnet is fixed to the locking seat; the locking electromagnet is fixed to both ends of the hip support plate, and to the end of the back support plate away from the hip support plate, and is fixed inside the displacement box.

[0015] Furthermore, it also includes: Mounting base, fixed inside the support base; second hydraulic telescopic rod, the non-telescopic end fixed to the mounting base, the telescopic end fixed below the pad; guide column, fixed below the pad, sliding through into the support base; controller, fixed inside the support base; protective layer, covering the buttocks sub-bed board, back sub-bed board, leg sub-bed board and head sub-bed board; buckle slots, formed on both sides of the buttocks sub-bed board, back sub-bed board, leg sub-bed board and head sub-bed board.

[0016] The above-described solution of the present invention has at least the following beneficial effects: This invention, through the structure of the adjustable components, enables flexible switching between bed and chair forms. Its ergonomic structure optimizes the sitting posture, extending the duration of comfortable treatment. The device features vertical height adjustment, allowing for height control based on the patient's lesion location and body shape, assisting in precise positioning and overcoming the limitations of traditional support devices, such as difficult positioning and low accuracy. This ensures accurate alignment between the lesion target area and the neutron beam. Simultaneously, it allows for horizontal displacement adjustment, modifying the lateral position of the sub-bed board based on the patient's body size and the lateral distribution of the lesions. This improves the fit between the bed board structure and the body surface, enabling precise calibration of the lateral lesion position and adapting to treatment procedures for lesions of different lateral sizes. Furthermore, the sub-bed board has a pre-reserved expansion port for attaching auxiliary bed boards, increasing the load-bearing width of the support structure and improving the poor body shape adaptability of traditional support devices. This broadens the applicable population, meeting the treatment needs of obese patients and patients with limb deformities.

[0017] This invention utilizes a purely mechanical linkage compensation structure to autonomously and dynamically compensate for errors based on human respiratory deformation, eliminating the need for external sensors and controllers and exhibiting strong structural stability. When the human body is inhaling, the expansion of the thoracic cavity generates pressure deformation, which is sequentially transmitted to the square plate, piston rod, and first piston body. The first piston body descends, compressing the leaf spring and simultaneously driving the power gear plate downwards. Through meshing transmission, the linkage gear plate and linkage sleeve slide synchronously. The transmission gear set follows the displacement and drives the transmission gear to complete the rotational motion. Power is transmitted via the transmission shaft and the first bevel gear set to the bidirectional threaded rod, and the bidirectional threaded rod adjustment plate... The increased spacing between the leaf spring fulcrums reduces the structural stiffness of the leaf spring itself. By utilizing the compression deformation of the low-stiffness elastic structure, the upward displacement of the tumor target area during inhalation is compensated. When the body is in the exhalation state, the thoracic cavity retracts and returns to its original position, each transmission component rebounds in the opposite direction, the bidirectional threaded rod rotates and returns to its original position, and the leaf spring fulcrum spacing and structural stiffness return to their initial state. The tumor target area follows the body's thoracic cavity to complete the repositioning. The entire compensation process cycles continuously with the breathing action, dynamically offsetting the target area displacement caused by respiratory fluctuations, reducing the neutron irradiation deviation amplitude, and effectively improving the accuracy and operational stability of boron neutron capture therapy. Attached Figure Description

[0018] Figure 1 This is a layout diagram of a compensation component for a patient support device used in boron neutron capture therapy, provided by an embodiment of the present invention. Figure 2 This is a schematic diagram of the overall structure of a patient support device for boron neutron capture therapy provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the hip sub-bed structure of a patient support device for boron neutron capture therapy provided in an embodiment of the present invention; Figure 4This is a schematic diagram of the hip support plate structure of a patient support device for boron neutron capture therapy provided in an embodiment of the present invention; Figure 5 A patient support device for boron neutron capture therapy is provided as an embodiment of the present invention. Figure 4 Enlarged view of point A; Figure 6 A patient support device for boron neutron capture therapy is provided as an embodiment of the present invention. Figure 4 Enlarged view of point B; Figure 7 This is a schematic diagram of a hydraulic box structure for a patient support device used in boron neutron capture therapy, provided by an embodiment of the present invention. Figure 8 A patient support device for boron neutron capture therapy is provided as an embodiment of the present invention. Figure 7 Enlarged view of point C; Figure 9 A schematic diagram of a hydraulic piston structure for a patient support device used in boron neutron capture therapy, provided in an embodiment of the present invention; Figure 10 A patient support device for boron neutron capture therapy is provided as an embodiment of the present invention. Figure 9 Enlarged view of point D; Figure 11 This is a schematic diagram of a displacement box structure for a patient support device used in boron neutron capture therapy, provided by an embodiment of the present invention. Figure 12 This is a schematic diagram of the second hydraulic telescopic rod structure of a patient support device for boron neutron capture therapy provided in an embodiment of the present invention; Figure 13 This is a schematic diagram of a compensation seat structure for a patient support device used in boron neutron capture therapy, provided by an embodiment of the present invention. Figure 14 This is a schematic diagram of a slide structure for a patient support device used in boron neutron capture therapy, provided by an embodiment of the present invention. Figure 15 A patient support device for boron neutron capture therapy is provided as an embodiment of the present invention. Figure 14 Enlarged view of point E; Figure 16 A patient support device for boron neutron capture therapy is provided as an embodiment of the present invention. Figure 14 Enlarged view at point F; Figure 17 This is a schematic diagram of a linkage toothed plate structure for a patient support device used in boron neutron capture therapy, provided by an embodiment of the present invention. Figure 18This is a schematic diagram of the docking rod structure of a patient support device for boron neutron capture therapy provided in an embodiment of the present invention; Figure 19 A flowchart of a patient support device for boron neutron capture therapy provided in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: In the diagram: 1. Support base; 2. Pad; 3. Adjusting component; 301. Hip support plate; 302. Back support plate; 303. Leg support plate; 304. Head support plate; 305. First rotating spindle; 306. Second rotating spindle; 307. Third rotating spindle; 308. Hydraulic box; 309. Angle adjustment box; 3010. Layered plate; 3011. Crank piston; 3012. Fluid changing hole; 3013. Fluid changing pipe; 3014. Hydraulic piston; 3015. Drive motor; 3016. Side support plate; 3017. Main gear; 3018. Intermediate gear; 3019. Drive. Threaded rod; 3020, auxiliary gear; 3021, displacement box; 3022, isolation plate; 3023, displacement motor; 3024, displacement threaded rod; 3025, first displacement seat; 3026, second bevel gear set; 3027, slide rod; 3028, second displacement seat; 3029, first hydraulic telescopic rod; 4, locking component; 401, locking gear; 402, third guide rod; 403, locking seat; 404, locking tooth groove; 405, locking spring; 406, locking magnet; 407, locking electromagnet; 5, buttock sub-bed board; 6, back sub-bed board; 7 9. Leg sub-bed; 8. Head sub-bed; 9. Compensating component; 901. Compensating seat; 902. Piston chamber; 903. First piston body; 904. Piston rod; 905. Square plate; 906. Second piston body; 907. Main spring; 908. Slide seat; 909. Slide groove; 9010. Leaf spring; 9011. Slider; 9012. Power gear plate; 9013. Linkage block; 9014. Linkage gear plate; 9015. Support; 9016. Transmission gear set; 9017. Transmission shaft; 9018. Transmission gear; 9019. Double-ended threaded rod; 9020. 9021. Bevel gear set; 9022. Linkage box; 9023. Linkage piston; 9024. Linkage spring; 9025. Linkage magnet; 9026. First guide rod; 9027. Guide seat; 9028. Second guide rod; 9029. Limiting piece; 9030. Guide spring; 9031. Connecting rod; 9032. Stacked piece; 9033. Spring clip; 9034. Spring seat; 10. Expansion port; 11. Mounting base; 12. Second hydraulic telescopic rod; 13. Guide column; 14. Controller; 15. Protective layer; 16. Snap-on groove. Detailed Implementation

[0020] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0021] like Figures 1 to 19 As shown, an embodiment of the present invention provides a patient support device for boron neutron capture therapy, comprising: a support base 1 and a pad 2 disposed on the support base 1, and further comprising: an adjusting member 3 fixed above the pad 2; a locking member 4 fixed inside the adjusting member 3; a buttock sub-bed 5 fixed above the adjusting member 3; a back sub-bed 6 fixed above the adjusting member 3; a leg sub-bed 7 fixed above the adjusting member 3; a head sub-bed 8 fixed above the adjusting member 3; a compensating member 9 fixed above the buttock sub-bed 5, the back sub-bed 6, the leg sub-bed 7, and the head sub-bed 8; and an expansion port 10 opened in the buttock area. The buttocks sub-bed board 5, back sub-bed board 6, leg sub-bed board 7, and head sub-bed board 8 are located on both sides; mounting base 11 is fixed inside support base 1; second hydraulic telescopic rod 12, with its non-telescopic end fixed to mounting base 11 and its telescopic end fixed below pad 2; guide column 13 is fixed below pad 2 and slides through into support base 1; controller 14 is fixed inside support base 1; protective layer 15 covers buttocks sub-bed board 5, back sub-bed board 6, leg sub-bed board 7, and head sub-bed board 8; buckle groove 16 is formed on both sides of buttocks sub-bed board 5, back sub-bed board 6, leg sub-bed board 7, and head sub-bed board 8.

[0022] Specifically, the protective layer 15 is made of neutron-absorbing material and has radiation shielding capability; the second hydraulic telescopic rod 12 has linear telescopic adjustment capability; the controller 14 is used for electrical logic control; the buckle slot 16 can realize the fastening and fixation of the restraint strap; the controller 14 has a built-in AI intelligent control system and a dedicated treatment posture control algorithm, which can pre-enter multi-dimensional body data such as the location and size of the patient's tumor lesion, height and weight, body size, and limb movement restriction, and link with the neutron beam parameters, beam irradiation angle, and equipment calibration reference data of the boron neutron capture therapy equipment. Through intelligent calculation and matching by the AI ​​algorithm, it automatically generates the optimal treatment posture plan adapted to the individual patient. It can autonomously drive the various adjustment mechanisms of the device to complete the automated and precise adjustment of posture, position, and height, replacing the traditional manual adjustment mode, and realizing the intelligent, standardized, and high-precision generation and adjustment of the patient's treatment posture.

[0023] In another preferred embodiment of the present invention, the compensation member 9 includes: a plurality of compensation seats 901 arranged in an array on the buttock sub-bed board 5, back sub-bed board 6, leg sub-bed board 7, and head sub-bed board 8; a piston cavity 902 formed within the compensation seats 901; a first piston body 903 slidably disposed within the piston cavity 902; a piston rod 904, one end fixed to the first piston body 903 and the other end extending out of the piston cavity 902; a square plate 905 fixed to the end of the piston rod 904 away from the first piston body 903; a second piston body 906 slidably disposed within the piston cavity 902 and located directly below the first piston body 903; a main spring 907, one end fixed to the bottom of the piston cavity 902 and the other end fixed below the second piston body 906; a slide block 908 fixed above the second piston body 906; and a groove 909 formed in the slide block. 908; leaf spring 9010, located on slide 908; slider 9011, slidably disposed in slide groove 909, fixed above leaf spring 9010; power gear plate 9012, fixed below first piston body 903; linkage block 9013, sleeved on power gear plate 9012; linkage gear plate 9014, slidably disposed in linkage block 9013 and meshing with power gear plate 9012; support 9015, fixed on slide 908; transmission gear set 9016, fixed on linkage block 9013; transmission shaft 9017, rotatably disposed on support 9015; transmission gear 9018, fixed on transmission shaft 9017; double-threaded rod 9019, threadedly inserted into leaf spring 9010; first bevel gear set 9020, output bevel gear fixed on transmission shaft 9017, output bevel gear fixed on double-threaded rod 9019.

[0024] The compensation component 9 also includes: a linkage box 9021, fixed to the linkage sleeve block 9013; a linkage piston 9022, one end of which is slidably embedded in the linkage box 9021, and the other end of which is fixed to the linkage tooth plate 9014; a linkage spring 9023, one end of which is fixed to the linkage box 9021, and the other end of which is fixed to the linkage piston 9022; a linkage electromagnet 9024, fixed to the linkage box 9021; a linkage magnetic sheet 9025, fixed to the linkage piston 9022 and located inside the linkage box 9021; and a first guide rod 9026, one end of which is fixed to the underside of the square plate 905. One end is slidably embedded in the compensation seat 901; the guide seat 9027 is fixed on both sides of the linkage block 9013; the second guide rod 9028 is fixed above the second piston body 906 and slidably inserted into the guide seat 9027; the limiting piece 9029 is fixed above the second guide rod 9028; the guide spring 9030 is sleeved on the second guide rod 9028, with one end fixed above the second piston body 906 and the other end fixed on the limiting piece 9029; the docking rod 9031 has both ends fixed on the first piston body 903 and the second piston body 906.

[0025] The leaf spring 9010 includes: a laminated plate 9032, fixed above the slider 9011 and threaded onto the bidirectional threaded rod 9019; a spring clip 9033, fixedly sleeved onto the laminated plate 9032; and a spring seat 9034, fixedly sleeved onto the laminated plate 9032 and bolted below the first piston body 903.

[0026] Specifically, the linkage electromagnet 9024 can be switched on and off to generate magnetic attraction force; both the main spring 907 and the guide spring 9030 have elastic buffering capabilities; the bidirectional threaded rod 9019 can be adjusted bidirectionally; and the leaf spring 9010 can change its own support stiffness.

[0027] Figure 13 The structure is adapted to the structural support of the back sub-bed board 6; Figure 18 The structure is adapted to the buttock sub-bed board 5, leg sub-bed board 7 and head sub-bed board 8; the main spring 907 is used to support the patient's body weight, and the leaf spring 9010 is used for dynamic compensation of respiratory movements.

[0028] In another preferred embodiment of the present invention, the adjusting member 3 includes: a hip support plate 301, fixed on the pad plate 2; a back support plate 302, rotatably disposed on one end of the hip support plate 301; a leg support plate 303, rotatably disposed on the other end of the hip support plate 301; and a head support plate 304, rotatably disposed on the end of the back support plate 302 away from the hip support plate 301.

[0029] Adjustment component 3 further includes: a first rotating spindle 305, fixed to the leg support plate 303 and rotatably embedded in one end of the hip support plate 301; a second rotating spindle 306, fixed to the back support plate 302 and rotatably embedded in the other end of the hip support plate 301; a third rotating spindle 307, fixed to the head support plate 304 and rotatably embedded in the end of the back support plate 302 away from the hip support plate 301; a hydraulic box 308, fixed to both ends of the hip support plate 301 and fixed to the end of the back support plate 302 away from the hip support plate 301; and an adjustment box 309, fixed to the hydraulic box 308 and rotatably sleeved on the first rotating spindle 305, the second rotating spindle 306, and the third rotating spindle 307. The three rotating spindles 307 are mounted on a layered plate 3010, which is fixed inside the angle adjustment box 309 and has its end face sealed against the first rotating spindle 305, the second rotating spindle 306, and the third rotating spindle 307. The crank piston 3011 is fixed on the first rotating spindle 305, the second rotating spindle 306, and the third rotating spindle 307 and has its outer side sealed against the inner wall of the angle adjustment box 309. The fluid exchange hole 3012 is opened on the inner bottom of the hydraulic box 308 and the angle adjustment box 309. The fluid exchange pipe 3013 has one end fixed above the end of the hydraulic box 308 away from the angle adjustment box 309 and the other end fixed above the angle adjustment box 309. The hydraulic piston 3014 is slidably disposed inside the hydraulic box 308.

[0030] Adjusting component 3 also includes: a drive motor 3015, fixed below the hydraulic box 308; a side support plate 3016, fixed below the hydraulic box 308; a main gear 3017, with its gear shaft fixed to the drive motor 3015 and rotatably mounted on the side support plate 3016; an intermediate gear 3018, with its gear shaft rotatably mounted on the side support plate 3016 and meshing with the main gear 3017; and a drive threaded rod 3019, rotatably mounted inside the hydraulic box 308, with its threads inserted. The hydraulic piston 3014 has an auxiliary gear 3020 fixedly mounted on the drive threaded rod 3019; a displacement box 3021 fixedly mounted inside the hip support plate 301, back support plate 302, leg support plate 303, and head support plate 304; an isolation plate 3022 fixedly mounted at both ends of the hip support plate 301, back support plate 302, leg support plate 303, and head support plate 304; and a displacement motor 3023 fixedly mounted on the hip support plate 301, back support plate 302, and leg support plate 304. Support plate 303 and head support plate 304; displacement threaded rod 3024, rotatably mounted on isolation plate 3022; first displacement seat 3025, slidably mounted in displacement box 3021, threadedly connected to displacement threaded rod 3024, fixed below buttock sub-bed plate 5, back sub-bed plate 6, leg sub-bed plate 7 and head sub-bed plate 8; second bevel gear set 3026, input bevel gear fixed on displacement motor 3023, output bevel gear fixed on displacement threaded rod 3024. The slide bar 3027 is fixedly installed in the buttock support plate 301, back support plate 302, leg support plate 303 and head support plate 304 respectively; the second displacement seat 3028 is slidably installed on the slide bar 3027; the first hydraulic telescopic rod 3029 has its non-telescopic end fixed in the first displacement seat 3025 and the second displacement seat 3028, and its telescopic end fixed below the buttock sub-bed plate 5, back sub-bed plate 6, leg sub-bed plate 7 and head sub-bed plate 8.

[0031] Specifically, the crank piston 3011 is made of a sealing and oil-resistant material; the hydraulic piston 3014 is used to squeeze the hydraulic oil to complete the oil circuit switching; the drive motor 3015 provides mechanical rotation power; the displacement motor 3023 is used to drive the lateral adjustment action; the first hydraulic telescopic rod 3029 realizes the fine adjustment of the height of a single sub-bed board; the surfaces of the layered plate 3010 and the first rotating spindle 305, the second rotating spindle 306 and the third rotating spindle 307 are sealed.

[0032] In another preferred embodiment of the present invention, the locking member 4 includes: a locking gear 401, fixed to the first rotating spindle 305, the second rotating spindle 306, the third rotating spindle 307, and the displacement threaded rod 3024; a third guide rod 402, fixed to both ends of the hip support plate 301, fixed to the end of the back support plate 302 away from the hip support plate 301, and fixed inside the displacement box 3021; ​​a locking seat 403, slidably sleeved on the third guide rod 402; and a locking tooth groove 4. 04, is located on the locking seat 403 and meshes with the locking gear 401; the locking spring 405 is fixed at one end on the locking seat 403 and at the other end on the hip support plate 301, the back support plate 302 and the displacement box 3021; ​​the locking magnet 406 is fixed on the locking seat 403; the locking electromagnet 407 is fixed at both ends of the hip support plate 301, fixed at the end of the back support plate 302 away from the hip support plate 301, and fixed inside the displacement box 3021.

[0033] Specifically, the locking electromagnet 407 can generate electromagnetic attraction force; the locking tooth groove 404 and the locking gear 401 adopt a meshing limiting structure; and the locking spring 405 has an elastic reset function.

[0034] Working Principle: This device is used in the field of auxiliary equipment for boron neutron capture therapy. The internal components work together to perform high-precision positioning based on the patient's lesion location and body shape, ensuring accurate alignment between the lesion target area and the neutron beam. The expansion port 10 is located on both sides of the buttock sub-bed plate 5, back sub-bed plate 6, leg sub-bed plate 7, and head sub-bed plate 8, which can complete the splicing and assembly of the outer auxiliary sub-bed plates, widening the usable width of the support structure. The protective layer 15 is made of neutron absorbing material and covers the surface of all sub-bed plates, which can absorb excess scattered neutrons during treatment and reduce the radiation dose to non-lesion areas of the human body. The buckle groove 16 is located on both sides of each sub-bed plate, which can complete the snap-fit ​​assembly of the abdominal binder, binding and fixing the buttocks, back, legs, and head of the human body, reducing the positional displacement caused by unconscious shaking of the human body.

[0035] This device contains numerous metal transmission, support, adjustment, and locking mechanical structures. Conventional metal materials are highly susceptible to neutron activation reactions under continuous high-intensity neutron beam irradiation during boron neutron capture therapy, resulting in residual radioactivity in the metal components and significantly increasing the background radiation dose in the treatment area. This not only causes long-term micro-radiation exposure for medical personnel but also interferes with the radiation dose detection accuracy of the treatment equipment, affecting treatment safety and precision. To address this issue, this device incorporates a complete neutron activation protection system. In addition to the neutron-absorbing protective layer 15 on the surface of the sub-bed plate, all metal mechanical components are covered with multiple composite shielding layers. The inner layer is a boron-polyethylene composite neutron-absorbing layer, which absorbs thermal neutrons and prevents activation reactions between neutrons and the metal substrate. The outer layer is a lead-antimony alloy composite layer, which shields against gamma secondary rays generated by metal activation. Simultaneously, the core load-bearing and transmission metal components are made of low-activation special stainless steel, reducing the probability of neutron activation at the source. This dual protection effectively suppresses the activation problem of the device's metal structure, stabilizes the background dose in the treatment environment, and ensures radiation safety throughout the treatment process.

[0036] This device can switch between bed and chair modes. The mode adjustment process relies on the hydraulic angle adjustment structure to complete the power transmission. After the drive motor 3015 is started, the drive motor 3015 drives the main gear 3017 to complete the rotation action. The main gear 3017 meshes with the intermediate gear 3018, and the intermediate gear 3018 drives the auxiliary gear 3020 to rotate synchronously. The auxiliary gear 3020 drives the drive threaded rod 3019 to rotate, and the drive threaded rod 3019 controls the hydraulic piston 3014 to make linear displacement movement inside the hydraulic box 308.

[0037] When the hydraulic piston 3014 approaches the fluid exchange hole 3012 inside the hydraulic box 308, the hydraulic piston 3014 squeezes the hydraulic oil inside the hydraulic box 308, and the hydraulic oil flows into the bottom of the adjusting box 309 through the fluid exchange hole 3012; the hydraulic piston 3014 gradually moves away from the fluid exchange pipe 3013, and the hydraulic oil at the top of the adjusting box 309 flows back to the hydraulic box 308 through the fluid exchange pipe 3013; the volume of hydraulic oil at the bottom of the adjusting box 309 increases and the volume of hydraulic oil at the top decreases. The hydraulic oil at the bottom pushes the crank piston 3011 to rotate in the direction where the hydraulic oil at the top decreases. The crank piston 3011 simultaneously drives the first rotating spindle 305, the second rotating spindle 306 and the third rotating spindle 307 to rotate towards the top of the adjusting box 309.

[0038] As the hydraulic piston 3014 approaches the fluid exchange pipe 3013 inside the hydraulic box 308, it squeezes the hydraulic oil inside the hydraulic box 308. The hydraulic oil flows into the top of the adjusting box 309 through the fluid exchange pipe 3013. As the hydraulic piston 3014 gradually moves away from the fluid exchange hole 3012, the hydraulic oil at the bottom of the adjusting box 309 flows back into the hydraulic box 308 through the fluid exchange hole 3012. The volume of hydraulic oil at the top of the adjusting box 309 increases while the volume at the bottom decreases. The hydraulic oil at the top pushes the crank piston 3011 to rotate in the direction where the hydraulic oil at the bottom decreases. Simultaneously, the crank piston 3011 drives the first rotating spindle 305, the second rotating spindle 306, and the third rotating spindle 307 to rotate towards the bottom of the adjusting box 309.

[0039] The three rotating spindles perform differentiated actions according to their assembly positions. The first rotating spindle 305 drives the leg support plate 303 to rotate downwards, the second rotating spindle 306 drives the back support plate 302 to rotate upwards, and the third rotating spindle 307 drives the head support plate 304 to rotate upwards. The leg sub-bed plate 7, back sub-bed plate 6, and head sub-bed plate 8 simultaneously complete angular deflection, and the device switches from a bed form to a chair form. The three rotating spindles can complete the reset switch from the chair form to the bed form by rotating in the opposite direction. At this time, the hip support plate 301, back support plate 302, leg support plate 303, and head support plate 304 remain parallel to the support base 1, and the four sub-bed plates maintain the same horizontal plane. The operator can adjust the stopping position of the hydraulic piston 3014 through the drive motor 3015 to precisely control the rotation angle of each sub-bed plate to adapt to different patients' lying and reclining postures.

[0040] Both the bed and chair shapes of this device allow for lateral displacement adjustment. After starting the displacement motor 3023, the displacement motor 3023 drives the second bevel gear set 3026 to rotate, which in turn drives the displacement threaded rod 3024 to rotate. The displacement threaded rod 3024 drives the first displacement seat 3025 to slide back and forth inside the displacement box 3021. The first hydraulic telescopic rod 3029 installed inside the first displacement seat 3025 drives the four sub-bed boards to complete the lateral position adjustment. The second displacement seat 3028, together with the slide rod 3027, provides auxiliary guidance. The second displacement seat 3028 follows the first hydraulic telescopic rod 3029 and slides synchronously along the slide rod 3027 to ensure a smooth and non-deviation-free lateral adjustment process. This device has dual-layer height adjustment capability. When the first hydraulic telescopic rod 3029 extends and retracts, it can increase the distance between the sub-bed board and the corresponding support plate, realizing independent height fine adjustment of a single sub-bed board. The second hydraulic telescopic rod 12 is assembled in the mounting base 11. When the second hydraulic telescopic rod 12 extends and retracts, it drives the pad 2 to complete the overall lifting and lowering, realizing the overall height adjustment of the device and adapting to the beam height of different treatment equipment.

[0041] Before and after the angle and lateral displacement adjustments are completed, the device achieves mechanical locking through the locking component 4. During the adjustment operation start-up phase, the power supply to the locking electromagnet 407 is turned on. The locking electromagnet 407 generates a magnetic field that attracts the locking magnetic plate 406. The locking magnetic plate 406 drives the locking seat 403 to slide along the third guide rod 402. The locking tooth groove 404 disengages from the locking gear 401, and the locking spring 405 is compressed, releasing the locked state of the transmission structure. After the angle and position adjustments are completed, the power supply to the locking electromagnet 407 is turned off. The magnetic field attraction disappears, the locking spring 405 elastically resets, and the locking seat 403 drives the locking tooth groove 404 to slide in the opposite direction. The locking tooth groove 404 re-engages with the locking gear 401, fixing the rotational position of the rotating core shaft and the threaded rod, and preventing structural displacement during treatment.

[0042] Multiple sets of compensating components 9 are arranged in an array above the four sub-bed boards. The compensating components 9 are covered with a protective layer 15. The gaps between adjacent sub-bed boards are filled with sponge material to reduce the squeezing friction of the rigid structure and improve the comfort of the human body. The compensating components 9 assembled on the back sub-bed board 6 include all mechanical structures except for the docking rod 9031. The compensating components 9 assembled on the buttock sub-bed board 5, leg sub-bed board 7 and head sub-bed board 8 have simplified structural settings, retaining only the compensating seat 901, the first piston body 903, the piston rod 904, the square plate 905, the second piston body 906, the main spring 907, the first guide rod 9026 and the docking rod 9031. The full-structure compensating components 9 mounted on the back sub-bed board 6 are used for human respiratory movement compensation. They generate linkage actions through the human breathing waveform, causing the back sub-bed board 6 to float in the opposite direction of the neutron beam, offsetting the tumor displacement caused by breathing fluctuations, maintaining the relative static state between the lesion target area and the neutron beam, and improving the irradiation accuracy of boron neutron capture therapy.

[0043] When the patient lies on the surface of the device, the body weight is evenly distributed across the surfaces of each set of square plates 905. When the compensating member 9 above the buttock sub-bed plate 5, leg sub-bed plate 7, and head sub-bed plate 8 bears pressure, the force is transmitted to the first piston body 903 via the piston rod 904. The first piston body 903 transmits the force to the second piston body 906 via the connecting rod 9031. The second piston body 906 compresses the main spring 907, and the main spring 907 is compressed to complete the gravity buffer support. When the compensating member 9 above the back sub-bed plate 6 bears pressure, it is initially activated. The linkage electromagnet 9024 is powered, and the linkage electromagnet 9024 attracts the linkage magnetic plate 9025. The linkage magnetic plate 9025 drives the linkage piston 9022 to compress the linkage spring 9023, and the linkage tooth plate 9014 disengages from the meshing position of the power tooth plate 9012. The force of the human body is transmitted to the first piston body 903 through the piston rod 904. The first piston body 903 transmits the force to the leaf spring 9010. The force is transmitted to the main spring 907 through the slide 908 and the second piston body 906 in sequence. The main spring 907 is compressed and deformed to complete the back pressure cushioning.

[0044] After the patient's position is fixed, the staff operates the controller 14 to make minor adjustments to the height and left and right positions of each sub-bed board. After the positioning is completed and before the neutron irradiation operation is started, the power supply to the linkage electromagnet 9024 is disconnected; the linkage spring 9023 elastically resets, pushes the linkage piston 9022 to slide in the opposite direction, the linkage toothed plate 9014 re-engages with the power toothed plate 9012, and the compensation component 9 enters the dynamic compensation working state.

[0045] After the linkage structure is engaged, this device compensates for respiratory movement errors through mechanical linkage. During the inhalation phase, the thoracic cavity expands, generating pressure deformation. The pressure is transmitted to the square plate 905, piston rod 904, and first piston body 903. The first piston body 903 moves downward and compresses the leaf spring 9010. The first piston body 903 drives the power gear plate 9012 to move downward synchronously. The power gear plate 9012 engages and drives the linkage gear plate 9014. The linkage sleeve 9013 slides downward following the linkage box 9021. The transmission gear group 9... 016 follows the displacement of the linkage block 9013 and engages with the transmission gear 9018. The transmission gear 9018 drives the transmission shaft 9017 to rotate. The transmission shaft 9017 drives the bidirectional threaded rod 9019 to rotate through the first bevel gear set 9020. The bidirectional threaded rod 9019 adjusts the distance between the two fulcrums of the leaf spring 9010. As the distance between the fulcrums increases, the structural stiffness of the leaf spring 9010 decreases. During inhalation, the human tumor target area undergoes a lifting displacement, and the low-stiffness leaf spring 9010 simultaneously undergoes compression deformation to complete the target area descent compensation.

[0046] During the exhalation phase, the thoracic cavity retracts and resets, causing the square plate 905, piston rod 904, and first piston body 903 to spring back and reset. The first piston body 903 drives the power gear plate 9012 and the linkage block 9013 to move upwards, while the transmission gear 9018, transmission shaft 9017, first bevel gear set 9020, and bidirectional threaded rod 9019 rotate synchronously in opposite directions. The bidirectional threaded rod 9019 drives the distance between the two fulcrums of the leaf spring 9010 to return to its initial size, and the structural stiffness of the leaf spring 9010 is restored synchronously. The tumor target area follows the human thoracic cavity to complete the reset. The entire respiratory compensation process runs continuously in a cycle, dynamically offsetting the target area shift caused by respiratory fluctuations, reducing neutron irradiation deviation, and ensuring the accuracy and stability of boron neutron capture therapy.

[0047] The specific steps of the patient positioning and placement procedure for boron neutron capture therapy using this device are as follows: Step 1: Staff members input the patient's personal physical data, such as the location and depth of the tumor lesion, body size, and range of motion of the limbs, as well as the neutron beam angle, irradiation height, and target area calibration parameters of the treatment equipment, into the AI ​​intelligent system of the controller 14; at the same time, the device self-test program is started to check the operating status of the second hydraulic telescopic rod 12, each displacement motor, drive motor, locking component 4, and compensation component 9, confirm that the shielding layer and sealing structure are intact, release the initial locking state of the device, and reset the device to the standard horizontal bed reference posture; Step 2: The controller 14, with its built-in AI algorithm, automatically calculates and generates the optimal personalized treatment posture based on the input patient data and treatment parameters, and autonomously issues adjustment commands: the overall height of the device is adjusted by extending and retracting the second hydraulic telescopic rod 12 to match the beam reference height of the treatment equipment; the deflection angle of the head, back, and leg support plates is adjusted by driving the hydraulic angle adjustment structure through the drive motor 3015 to adapt to the patient's lesion irradiation position; and the lateral displacement of each sub-bed plate is driven by the displacement motor 3023, which, together with the first hydraulic telescopic rod 3029, completes the independent height fine adjustment of each sub-bed plate, achieving preliminary and accurate alignment between the lesion target area and the neutron beam. Step 3: Guide the patient to lie flat against the compensation component 9 square plate 905 of each sub-bed board. The array-type compensation structure conforms to the patient's body curve to provide flexible support. Select an appropriate restraint strap according to the patient's body shape and secure it by snapping it into place through the buckle slots 16 on both sides of each sub-bed board. This will limit and fix the patient's head, back, buttocks, and legs to prevent unconscious swaying during treatment. If the patient has a special body shape, an auxiliary sub-bed board can be spliced ​​through the expansion port 10 to widen the support range and improve the adaptability of the position. Step 4: The staff imports the image positioning data into the controller 14. The controller's built-in AI intelligent control system, combined with the lesion target area coordinates and beam reference data, automatically completes precise fine-tuning and correction of the angle, lateral position, and height of each sub-bed board, intelligently correcting positioning deviations to ensure that the lesion target area is completely aligned with the neutron beam irradiation area. The staff only needs to verify the compliance of the posture and does not need to manually adjust or intervene. After the fine-tuning is completed, the power supply to the locking electromagnet 407 is disconnected, and the locking spring 405 resets, causing the locking groove 404 to mesh with the locking gear 401, mechanically locking all rotation and displacement transmission structures, completely fixing the treatment posture and avoiding structural displacement deviations. Step 5: After the body position is locked, confirm that the patient's breathing is stable, disconnect the power supply of the linkage electromagnet 9024 of the back sub-bed board 6 compensation component 9, so that the linkage tooth plate 9014 and the power tooth plate 9012 are fully engaged, activate the respiratory dynamic compensation function, so that the device can follow the patient's breathing fluctuations to complete the reverse dynamic adjustment and counteract the target area deviation caused by respiratory movement in real time. Step 6: Check that the composite shielding layer and subbed plate protective layer 15 of all metal components of the device are intact and undamaged, confirm that there is no risk of neutron activation radiation leakage and that the background dose is within the safe standard range; complete the second alignment verification of the target area, and start the boron neutron capture therapy operation after the data is correct. The device will maintain attitude lock and dynamic compensation state throughout the treatment process. Step 7: After treatment, turn on the power to the locking electromagnet 407 to release the mechanical lock, turn off the respiratory dynamic compensation function, and use the control controller 14 to reset the device to the initial horizontal bed state. Remove the patient's restraints and assist the patient to leave the device, thus completing the single positioning and treatment process.

[0048] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A patient support device for boron neutron capture therapy, comprising: The support base and the pad disposed on the support base are characterized in that they further include: Adjustable parts are fixed above the pad; locking parts are fixed inside the adjustable parts; hip sub-bed board is fixed above the adjustable parts; back sub-bed board is fixed above the adjustable parts; leg sub-bed board is fixed above the adjustable parts; head sub-bed board is fixed above the adjustable parts; compensating parts are fixed above the hip sub-bed board, back sub-bed board, leg sub-bed board, and head sub-bed board; expansion openings are provided on both sides of the hip sub-bed board, back sub-bed board, leg sub-bed board, and head sub-bed board. Multiple compensation seats are arranged in an array on the buttocks sub-bed, back sub-bed, leg sub-bed, and head sub-bed; a piston chamber is formed within the compensation seat; a first piston body is slidably disposed within the piston chamber; a piston rod is fixed at one end to the first piston body and extends out of the piston chamber at the other end; a square plate is fixed to the end of the piston rod away from the first piston body; a second piston body is slidably disposed within the piston chamber and located directly below the first piston body; a main spring is fixed at one end to the bottom of the piston chamber and at the other end to the lower part of the second piston body; a sliding seat is fixed above the second piston body; a sliding... A groove is formed on the slide block; a leaf spring is located on the slide block; a slider is slidably disposed in the groove and fixed above the leaf spring; a power gear plate is fixed below the first piston body; a linkage sleeve is sleeved on the power gear plate; a linkage gear plate is slidably disposed in the linkage sleeve and meshes with the power gear plate; a support is fixed on the slide block; a transmission gear set is fixed on the linkage sleeve; a transmission shaft is rotatably disposed on the support; a transmission gear is fixed on the transmission shaft; a double-threaded rod is threaded into the leaf spring; and a first bevel gear set has an output bevel gear fixed on the transmission shaft and an output bevel gear fixed on the double-threaded rod.

2. The patient support device for boron neutron capture therapy according to claim 1, characterized in that, The compensation component also includes: The linkage box is fixed on the linkage sleeve block; the linkage piston has one end slidably embedded in the linkage box and the other end fixed on the linkage tooth plate; the linkage spring has one end fixed in the linkage box and the other end fixed on the linkage piston; the linkage electromagnet is fixed in the linkage box; and the linkage magnetic plate is fixed on the linkage piston and located in the linkage box.

3. A patient support device for boron neutron capture therapy according to claim 2, characterized in that, The compensation component also includes: The first guide rod is fixed at one end to the bottom of the square plate and the other end is slidably embedded in the compensation seat; the guide seat is fixed on both sides of the linkage block; the second guide rod is fixed above the second piston body and slidably inserted into the guide seat; the limiting plate is fixed above the second guide rod; the guide spring is sleeved on the second guide rod, with one end fixed above the second piston body and the other end fixed on the limiting plate; the connecting rod is fixed at both ends to the first piston body and the second piston body.

4. A patient support device for boron neutron capture therapy according to claim 1, characterized in that, The leaf spring includes: The stacked plate is fixed above the slider and threaded onto the bidirectional threaded rod; the spring clip is fixedly sleeved onto the stacked plate; the spring seat is fixedly sleeved onto the stacked plate and bolted to the bottom of the first piston body.

5. A patient support device for boron neutron capture therapy according to claim 1, characterized in that, The adjusting element includes: The hip support plate is fixed to the pad; the back support plate is rotatably mounted on one end of the hip support plate; the leg support plate is rotatably mounted on the other end of the hip support plate; and the head support plate is rotatably mounted on the end of the back support plate away from the hip support plate.

6. A patient support device for boron neutron capture therapy according to claim 5, characterized in that, The adjusting component further includes: The first rotating spindle is fixed to the leg support plate and rotatably embedded in one end of the hip support plate; the second rotating spindle is fixed to the back support plate and rotatably embedded in the other end of the hip support plate; the third rotating spindle is fixed to the head support plate and rotatably embedded in the end of the back support plate away from the hip support plate; the hydraulic box is fixed to both ends of the hip support plate and to the end of the back support plate away from the hip support plate; the angle adjustment box is fixed to the hydraulic box and rotatably sleeved on the first, second, and third rotating spindles; the layered plate is fixed inside the angle adjustment box and its end face is sealed against the first, second, and third rotating spindles; the crank piston is fixed to the first, second, and third rotating spindles and its outer side is sealed against the inner wall of the angle adjustment box; the fluid replacement hole is opened on the inner bottom of the hydraulic box and the angle adjustment box; the fluid replacement pipe is fixed at one end above the end of the hydraulic box away from the angle adjustment box and at the other end above the angle adjustment box; the hydraulic piston is slidably disposed inside the hydraulic box.

7. A patient support device for boron neutron capture therapy according to claim 6, characterized in that, The adjusting component further includes: The drive motor is fixed below the hydraulic box; the side support plate is fixed below the hydraulic box; the main gear has its gear shaft fixed on the drive motor and is rotatably mounted on the side support plate; the intermediate gear has its gear shaft rotatably mounted on the side support plate and meshes with the main gear; the drive threaded rod is rotatably mounted inside the hydraulic box and its threads are inserted into the hydraulic piston; and the auxiliary gear is fixedly mounted on the drive threaded rod.

8. A patient support device for boron neutron capture therapy according to claim 7, characterized in that, The adjusting component further includes: The system comprises: a displacement box, fixed inside the hip support plate, back support plate, leg support plate, and head support plate; an isolation plate, fixed at both ends of the hip support plate, back support plate, leg support plate, and head support plate; a displacement motor, fixed to the hip support plate, back support plate, leg support plate, and head support plate; a displacement threaded rod, rotatably mounted on the isolation plate; a first displacement seat, slidably mounted inside the displacement box, threadedly connected to the displacement threaded rod, and fixed below the hip sub-bed plate, back sub-bed plate, leg sub-bed plate, and head sub-bed plate; a second bevel gear set, with the input bevel gear fixed to the displacement motor and the output bevel gear fixed to the displacement threaded rod; sliding rods, respectively fixed inside the hip support plate, back support plate, leg support plate, and head support plate; a second displacement seat, slidably mounted on the sliding rod; and a first hydraulic telescopic rod, with its non-telescopic end fixed inside the first and second displacement seats and its telescopic end fixed below the hip sub-bed plate, back sub-bed plate, leg sub-bed plate, and head sub-bed plate.

9. A patient support device for boron neutron capture therapy according to claim 1, characterized in that, The locking element includes: The locking gear is fixed to the first rotating spindle, the second rotating spindle, the third rotating spindle, and the displacement threaded rod; the third guide rod is fixed to both ends of the hip support plate, and to the end of the back support plate away from the hip support plate, and is fixed inside the displacement box; the locking seat is slidably sleeved on the third guide rod; the locking tooth groove is formed on the locking seat and meshes with the locking gear; the locking spring is fixed at one end to the locking seat and at the other end to the hip support plate, the back support plate, and the displacement box; the locking magnet is fixed to the locking seat; the locking electromagnet is fixed to both ends of the hip support plate, and to the end of the back support plate away from the hip support plate, and is fixed inside the displacement box.

10. A patient support device for boron neutron capture therapy according to claim 1, characterized in that, Also includes: Mounting base, fixed inside the support base; second hydraulic telescopic rod, the non-telescopic end is fixed on the mounting base, and the telescopic end is fixed below the pad; The guide post is fixed below the pad and slides through into the support base; the controller is fixed inside the support base; the protective layer covers the buttocks sub-bed board, back sub-bed board, leg sub-bed board and head sub-bed board; the buckle groove is opened on both sides of the buttocks sub-bed board, back sub-bed board, leg sub-bed board and head sub-bed board.

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