Rotating floor and proton treatment system

Abstract

The invention discloses a rotating floor and a proton treatment system, and the rotating floor comprises a frame assembly and a floor assembly disposed on the frame assembly. The frame assembly comprises a main body section, the main body section is provided with a moving groove used for avoiding a treatment head, and the extension contour of the main body section is an unclosed path and forms an opening; two free ends of the main body section are respectively connected with an extension section, and the extension sections are respectively provided with extension grooves communicated with the moving grooves; the frame assembly is provided with a floor assembly, the floor assembly is used for being connected with the treatment head and driven by the treatment head, the floor assembly and the treatment head completely cover the portions, exposed in the treatment chamber, of the moving groove and the extending groove, and the portion, exceeding the moving groove, of the floor assembly is contained in the extending groove. Therefore, the structure of the rotating floor and the structure of the proton treatment system adopting the rotating floor are simplified, the proton treatment system is miniaturized, and proton treatment is touchable.

Description

Technical Field

[0001] The present invention relates to the technical field of proton therapy equipment, and in particular to a rotating floor and a proton therapy system. Background Art

[0002] Proton therapy is a treatment method that uses high-energy proton beams to precisely target a lesion, such as a tumor, to remove it. During treatment, the high-energy proton beam is generated by a proton accelerator and delivered through a treatment head. To ensure the beam's precise targeting of the patient's lesion, the angle of the treatment head must be adjusted. Therefore, the treatment head can be configured to rotate around the patient.

[0003] To enable rotation of the treatment head, proton therapy equipment requires a groove within which the treatment head can move. Existing treatment heads typically rotate 360°, necessitating a 360° groove. This groove, however, partially sits on the floor of the treatment room, creating a depression that could create a risk of falling.

[0004] To prevent falls, one existing method involves installing a circular floor that connects the drive motor and the treatment head, with a cover that provides a clearance groove for the treatment head. As the treatment head moves, the drive motor controls the floor to retract or unroll, allowing it to move in sync with the treatment head, effectively covering the clearance groove and preventing falls. However, this design of a circular floor and drive motor does not simplify the structure of the proton therapy system. Summary of the Invention

[0005] An object of the present invention is to provide a rotating floor and a proton therapy system, so as to simplify the structures of the rotating floor and the proton therapy system using the rotating floor.

[0006] The purpose of the present invention is achieved by the following technical solutions:

[0007] A rotating floor comprises a frame assembly and a floor assembly mounted on the frame assembly; the frame assembly comprises a main body section, the main body section being provided with a movable groove for circumventing a treatment head, the extended profile of the main body section being an open path; two free ends of the main body section are respectively connected to extension sections, the extension sections extending to a wall embedded in a treatment room, and portions of the extension sections not engaging with the treatment head being shielded by the treatment room, the extension sections each being provided with an extension groove communicating with the movable groove;

[0008] A floor assembly is provided on the frame assembly, the floor assembly being configured to be connected to and driven by the treatment head, the extension length of the floor assembly being greater than the extension length of the movable slot, and the combination of the floor assembly and the treatment head maintaining complete coverage of the movable slot and the portion of the extension slot exposed within the treatment room during movement;

[0009] The portion of the floor assembly that exceeds the movable groove is accommodated in the extension groove, and the extension grooves of the two extension sections respectively reserve movable spaces, and the floor assembly is driven by the treatment head to move into or out of the movable space.

[0010] Preferably, the extension length of the extension slot is greater than or equal to the maximum length of the floor assembly that can extend beyond the corresponding end of the movable slot.

[0011] Preferably, the upper free end of the main body section is connected to the first extension section, and the lower free end of the main body section is connected to the second extension section; the first extension section includes an inclined section that rises obliquely from the main body section and a first horizontal section that extends horizontally from the inclined section; the second extension section includes a second horizontal section that is connected to the main body section and extends horizontally, a vertical section that extends vertically, and a third horizontal section that is connected to the vertical section and extends horizontally;

[0012] The first extension section is covered by the top wall of the treatment room, the second horizontal section and the main section are exposed in the treatment room so that the treatment head moves on the main section and the second horizontal section, and the vertical section and the third horizontal section are covered by the bottom wall of the treatment room.

[0013] Preferably, the third horizontal section is connected to a connecting piece, the connecting piece is provided with a foot support, and the foot support abuts against the ground to support the third horizontal section;

[0014] The portion of the foot support that contacts the ground is provided with a flexible buffer portion, and the flexible buffer portion is used to absorb vibrations generated by the frame assembly; and / or the connecting piece is elastically deformed to absorb vibrations generated by the frame assembly.

[0015] Preferably, the floor assembly includes a first portion and a second portion, wherein the first portion and the second portion are separated and form a space for accommodating a treatment head;

[0016] One end of the first part is located in the main section and is used to connect to the treatment head, and the other end of the first part extends into the first extension section; one end of the second part is located in the main section and is used to connect to the treatment head, and the other end of the second part extends into the second extension section; the first part and the second part are synchronously driven by the treatment head.

[0017] Preferably, the first portion is fixedly connected to a first connecting member, the first connecting member is movably connected to a second connecting member, and the first connecting member is capable of arc-shaped movement relative to the second connecting member, and the second connecting member is used to be fixedly connected to the treatment head;

[0018] The second portion is fixedly connected to a third connecting member, the third connecting member is movably connected to a fourth connecting member, and the third connecting member is capable of arc-shaped movement relative to the fourth connecting member, and the fourth connecting member is used to be fixedly connected to the treatment head;

[0019] When the treatment head moves upward, the first connecting member moves inward relative to the second connecting member, and the third connecting member moves inward relative to the fourth connecting member; when the treatment head moves downward, the first connecting member moves outward relative to the second connecting member, and the third connecting member moves outward relative to the fourth connecting member.

[0020] Preferably, one of the first connecting member and the second connecting member is provided with a second rolling member, and the other is provided with a second arc-shaped rolling groove that cooperates with the second rolling member, and the first connecting member and the second connecting member are movably connected through the cooperation of the second rolling member and the second rolling groove, so that the first part can move relative to the treatment head;

[0021] One of the third connecting member and the fourth connecting member is provided with a second rolling member, and the other is provided with a second arc-shaped rolling groove that cooperates with the second rolling member. The third connecting member and the fourth connecting member are movably connected through the cooperation of the second rolling member and the second rolling groove, so that the second part can move relative to the treatment head.

[0022] Preferably, the main section includes an arcuate portion, a straight portion, and a connecting portion connecting the arcuate portion and the straight portion, the radius of the arcuate portion is R1, and the radius of the connecting portion is R2; the inclined section and the first horizontal section are connected by a first arcuate transition portion with a radius of R3; the radius of the arcuate moving path of the first connecting member is R4;

[0023] Among them, R1:R2:R3:R4 is (8.9~9.1):(0.95~1.05):(0.45~0.55):(4.8~5.0).

[0024] Preferably, the radius of the arc-shaped moving path of the third connecting member is R5; the second horizontal section and the vertical section are connected by a second arc-shaped transition portion with a radius of R6;

[0025] Wherein, the R1:R5:R6 is (16-20):(60-70):(13-17).

[0026] Preferably, a transition section is provided between the vertical section and the third horizontal section, the portion where the transition section connects to the vertical section is an arc-shaped profile with a radius of R7, and the portion where the transition section connects to the third horizontal section is an arc-shaped profile with a radius of R8;

[0027] Among them, R1:R5:R6:R7:R8 is (16~20):(60~70):(13~17):(11~14):(16~20).

[0028] Preferably, the second rolling element is a bearing, and the outer periphery of the second rolling element is wrapped with a polyurethane layer.

[0029] Preferably, the floor assembly includes a plurality of floor panels and rubber members connecting adjacent floor panels, the ends of the floor panels are provided with connecting grooves, a portion of the rubber member is embedded in the connecting groove of one floor panel, and another portion of the rubber member is embedded in the connecting groove of another floor panel; the plurality of floor panels are connected by the rubber members to form a chain structure.

[0030] Preferably, a first rolling member is provided on the side of the floor, and the frame assembly is provided with a first rolling groove cooperating with the first rolling member, and the floor slides in the first rolling groove through the first rolling member to enable the floor assembly to move in the frame assembly.

[0031] Preferably, the floor is further provided with an anti-drift buckle extending into the connecting groove, and the anti-drift buckle presses the rubber piece located in the connecting groove to fix the rubber piece.

[0032] Preferably, the floor comprises a second surface facing away from the treatment area, and at least one hollow portion is provided on the second surface;

[0033] And / or, the floor comprises a pair of opposite side surfaces along a width direction of the frame assembly, and each of the pair of side surfaces is provided with a hollow portion.

[0034] A proton therapy system comprising:

[0035] A rotating floor of any of the above;

[0036] a treatment head connected to the rotating floor and used to drive the rotating floor to rotate;

[0037] A proton accelerator is used to accelerate protons to provide a beam to the treatment head. The proton accelerator and the treatment head are located on opposite sides of the rotating floor.

[0038] Preferably, the main section and the second horizontal section of the rotating floor are exposed to the treatment room, and the second horizontal section is pre-embedded in the bottom wall of the treatment room. The second horizontal section is fixedly connected to the main section by fasteners, and the first extension section, the vertical section and the third horizontal section of the rotating floor are covered by the wall of the treatment room.

[0039] The treatment head rotates on the main body section and the second horizontal section, and the rotation angle of the treatment head is -5° to 185°.

[0040] Compared with the prior art, the beneficial effects of the present invention include at least:

[0041] By using the driving force of the treatment head to drive the movement of the floor assembly, there is no need to set up an additional driving mechanism to drive the movement of the floor assembly, which can effectively simplify the structure of the rotating floor and reduce the manufacturing cost of the rotating floor. By setting the extension path of the main section as an open path, the main section forms an open structure. When the patient moves into the floor assembly, the space inside the floor assembly is connected with the rest of the treatment room to form an open space, which can effectively relieve the patient's tension after entering the treatment room, thereby ensuring the treatment process and treatment effect. At the same time, it can reduce the space occupied by the rotating floor in the treatment room, ensure the aesthetics of the treatment room, and achieve further miniaturization of the proton therapy system. Medical equipment such as the treatment bed can be moved from the opening of the main section into the main section, which can facilitate treatment operations.

[0042] By extending the floor assembly longer than the movable slot, the floor assembly and treatment head assembly can completely cover the movable slot during movement. This means that as the treatment head rotates, the movable slot remains completely shielded, effectively preventing people from falling into the slot and external components from falling through the slot into the treatment room and causing damage to personnel or equipment. Providing this free space facilitates movement of the floor assembly and prevents interference with other components as it moves with the treatment head, further ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic structural diagram of a rotating floor and a treatment head according to an embodiment of the present invention;

[0044] Figure 2 is a structural diagram of a framework assembly according to an embodiment of the present invention;

[0045] Figure 3 is a partial structural diagram of a frame assembly according to an embodiment of the present invention;

[0046] Figure 4 is another partial structural diagram of the frame assembly according to an embodiment of the present invention;

[0047] Figure 5 is a partial structural diagram of a rotating floor and a treatment head according to an embodiment of the present invention;

[0048] Figure 6 This is a partial structural exploded view of the rotating floor and treatment head according to an embodiment of the present invention;

[0049] Figure 7 This is another partial structural diagram of the rotating floor and the treatment head according to an embodiment of the present invention;

[0050] Figure 8 This is another partial structural exploded view of the rotating floor and the treatment head according to an embodiment of the present invention;

[0051] Figure 9 is an exploded view of a frame assembly according to an embodiment of the present invention;

[0052] Figure 10 is a partial structural diagram of a rotating floor according to an embodiment of the present invention;

[0053] Figure 11 is a partial structural schematic diagram of a floor assembly according to an embodiment of the present invention;

[0054] Figure 12 Schematic diagram of the structure of the floor according to an embodiment of the present invention.

[0055] In the figure: 100, rotating floor; 1, frame assembly; 11, main section; 111, moving groove; 112, first rolling groove; 113, opening; 114, arc-shaped portion; 115, straight portion; 116, connecting portion; 12, extension section; 1211, moving space; 121, extension groove; 122, first extension section; 1221, first extension groove; 1222, inclined section; 1223, first horizontal section; 1224, first arc-shaped transition section; 123, second extension section; 1231, second extension groove; 1232, vertical section; 1233, second horizontal section; 1234, Third horizontal section; 1235, connecting piece; 1236, foot support; 1237, transition section; 1238, second arc-shaped transition portion; 2, floor assembly; 21, floor; 211, connecting groove; 212, first rolling member; 213, first surface; 214, second surface; 215, hollow portion; 216, anti-drift buckle; 22, rubber member; 23, first part; 231, first connecting member; 2311, second rolling member; 232, second connecting member; 2321, second rolling groove; 24, second part; 241, third connecting member; 242, fourth connecting member; 200, treatment head. DETAILED DESCRIPTION

[0056] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concepts of the example embodiments to those skilled in the art. Identical reference numerals in the drawings represent identical or similar structures, and thus repeated descriptions thereof will be omitted.

[0057] The words expressing positions and directions described in the present invention are all explained with reference to the accompanying drawings as examples, but can be modified as needed, and all such modifications are within the scope of protection of the present invention.

[0058] like Figures 1 to 10 As shown, the present invention provides a rotating floor panel 100 comprising a frame assembly 1 and a floor panel assembly 2. The frame assembly 1 is provided with a slot for a treatment head 200 to rotate within the slot of the frame assembly 1 without interfering with other components. The treatment head 200 can partially obstruct the slot when positioned within the slot. The floor panel assembly 2 is mounted on the frame assembly 1 and positioned on either side of the treatment head 200. Together with the treatment head 200, it covers the slot of the frame assembly 1 to prevent people from falling into it.

[0059] Reference Figure 1 and Figure 2 The frame assembly 1 includes a main body section 11 and an extension section 12. A movable groove 111 for the treatment head 200 to move is provided on the main body section 11. The movable groove 111 can be used to avoid the treatment head 200 so that the treatment head 200 can rotate on the main body section 11. The extension path of the main body section 11 can be adapted to a partial rotation path of the treatment head 200, and the extension path of the main body section 11 is an open path, so that the main body section 11 can be formed with an opening 113, and the main body section 11 forms an open structure, and the open main body section 11 will form two free ends. Among them, the extension path of the main body section 11 is roughly an arc-shaped contour structure, and the extension path of the movable groove 111 is the same as the extension path of the main body section 11. The main body section 11 can be roughly C-shaped.

[0060] Reference Figure 2In some specific embodiments, the main body segment 11 may include an arcuate portion 114, a straight portion 115 located above the arcuate portion 114, and a connecting portion 116 connecting the arcuate portion 114 and the straight portion 115. The arcuate portion 114 extends along an arcuate path, the straight portion 115 extends along an inclined straight path, and the connecting portion 116 extends along an arcuate path. The connecting portion 116 is configured to create a smooth transition between the arcuate portion 114 and the straight portion 115. The radius of the arcuate portion 114 of the main body segment 11 can be adapted to the rotation radius of the treatment head 200, allowing the treatment head 200 to move within the arcuate portion 114. The end of the straight portion 115 away from the arcuate portion 114 forms an upper free end, and the end of the arcuate portion 114 of the main body segment 11 away from the straight portion 115 forms a lower free end. The upper free end and the lower free end are each connected to an extension segment 12.

[0061] Two extension sections 12 are provided, and the two extension sections 12 can be connected to the two free ends of the main section 11 in a one-to-one manner, so that each free end of the main section 11 is connected to an extension section 12. Each extension section 12 is provided with an extension slot 121 that communicates with the movable slot 111, and the extension slots 121 of the two extension sections 12 are located at both ends of the movable slot 111. The extension slots 121 of the extension sections 12 can be used to accommodate a portion of the floor assembly 2. When the treatment head 200 moves, the floor assembly 2 needs to move with the treatment head 200 to block the movable slot 111 in real time and prevent people from falling. When the floor assembly 2 moves, the floor assembly 2 will extend out of the movable slot 111, and the length of the portion of the floor assembly 2 extending out of the movable slot 111 will change. The extension slots 121 of the extension sections 12 can be used to accommodate the portion of the floor assembly 2 that extends beyond the movable slot 111, and a movable space 1211 is reserved within the extension slots 121. When the treatment head 100 is located in the middle of the main body section 11, only a portion of the space within each extension slot 121 is covered by the floor assembly 2, while the remaining space remains vacant. This vacant space can serve as a movement space 1211. When the treatment head 100 moves, the floor assembly 2 follows the movement of the treatment head 100, and the length of the floor assembly 2 within the extension slot 121 changes. As the length of the floor assembly 2 within the extension slot 121 increases, the movement space 1211 can absorb the increased length of the floor assembly 2, ensuring that the movement of the floor assembly 2 is not restricted by insufficient space. The extension length of the extension slot 121 is greater than or equal to the maximum length that the floor assembly 2 can extend beyond the end of the corresponding movement slot 111, ensuring that the portion of the floor assembly 2 that extends beyond the movement slot 111 is located within the extension section 12 and is accommodated by the extension slot 121.

[0062] Reference Figure 9In some embodiments, the two extension segments 12 may be a first extension segment 122 and a second extension segment 123. The first extension segment 122 may be connected to the upper free end of the main body segment 11, and the second extension segment 123 may be connected to the lower free end of the main body segment 11. The first extension segment 122 is provided with a first extension slot 1221, the extension length of which is greater than or equal to the maximum length of the floor assembly 2 extending beyond the upper free end of the main body segment 11. The second extension segment 123 is provided with a second extension slot 1231, the extension length of which is greater than or equal to the maximum length of the floor assembly 2 extending beyond the lower free end of the main body segment 11. When the treatment head 200 moves toward the upper free end of the main body segment 11 to its maximum travel, the length of the floor assembly 2 extending beyond the upper free end of the main body segment 11 is at its maximum length. When the treatment head 200 moves toward the lower free end of the main body segment 11 to its maximum travel, the length of the floor assembly 2 extending beyond the lower free end of the main body segment 11 is at its maximum length.

[0063] The first extension section 122 extends from the upper free end of the main body section 11 toward a direction away from the opening 113 of the main body section 11. Specifically, the first extension section 122 includes an inclined section 1222 and a first horizontal section 1223. One end of the inclined section 1222 is connected to the upper free end of the main body section 11, that is, to the straight portion 115 of the main body section 11, and the other end of the inclined section 1222 is connected to the first horizontal section 1223. The inclined section 1222 gradually increases in height as it moves away from the main body section 11. The first horizontal section 1223 extends horizontally and is higher than the upper free end of the main body section 11. The first horizontal section 1223 may be higher than the highest point of the main body section 11 or be the same height as the highest point of the main body section 11. The first horizontal section 1223 may be mounted on the ceiling of the treatment room, embedded in the ceiling, or shielded by the ceiling. In order to smoothly transition the connection position between the inclined section 122 and the first horizontal section 1223, a first arc-shaped transition portion 1224 can be provided between the inclined section 122 and the first horizontal section 1223. The inclined section 122 is connected to the first horizontal section 1223 through the first arc-shaped transition portion 1224, so that the overall contour of the first extension section 122 is relatively smooth and there is no sharp turning point.

[0064] The second extension section 123 extends from the lower free end of the main body section 11 in a direction away from the opening 113 of the main body section 11. Specifically, the second extension section 123 may include a second horizontal section 1233, a vertical section 1232, and a third horizontal section 1234. The second horizontal section 1233 extends horizontally from the lower free end of the main body section 11. The vertical section 1232 extends downward from the end of the second horizontal section 1233 away from the main body section 11. The third horizontal section 1234 extends horizontally from the end of the vertical section 1232 away from the main body section 11. The second horizontal section 1233 and the third horizontal section 1234 are located on the same side of the vertical section 1232 to streamline the arrangement of the second extension section 123 and prevent interference between the second extension section 123 and other parts. The second horizontal section 1233 may extend in a direction opposite to that of the first horizontal section 1223. The second horizontal section 1233 of the second extension section 123 can be pre-embedded in the bottom wall of the treatment room, with the second horizontal section 1233 exposed to the treatment room. The second horizontal section 1233 is connected to the main section 11 via fasteners such as bolts, allowing the treatment head 200 to move on the main section 11 and the second horizontal section 1233. The vertical section 1232 of the second extension section 123 can extend through the bottom wall of the treatment room, and the third horizontal section 1234 of the second extension section 123 is located below the bottom wall of the treatment room.

[0065] To ensure a smooth transition between the second horizontal segment 1233 and the vertical segment 1232, a second curved transition portion 1238 is provided between the second horizontal segment 1233 and the vertical segment 1232. The second horizontal segment 1233 is connected to the vertical segment 1232 via the second curved transition portion 1238. To ensure a smooth transition between the vertical segment 1232 and the third horizontal segment 1234, a transition segment 1237 is provided between the vertical segment 1232 and the third horizontal segment 1234. The middle portion of the transition segment 1237 may be an inclined straight segment structure, and the ends of the transition segment 1237 may each be an arc-shaped profile structure tangent to the straight segment structure. The arcuate structure at one end of transition section 1237 connects to vertical section 1232, creating a smooth transition between the connection between vertical section 1232 and transition section 1237. The arcuate structure at the other end of transition section 1237 connects to third horizontal section 1234, creating a smooth transition between the connection between third horizontal section 1234 and transition section 1237. The provision of transition section 1237 results in a smoother overall profile of vertical section 1232, transition section 1237, and third horizontal section 1234, without any sharp inflection points.

[0066] The extended profile of the existing rotating floor 100 forms a closed path, allowing the rotating floor 100 to form a ring-shaped closed structure, thereby enabling the treatment head 200 to rotate 360 ​​degrees. Furthermore, the floor assembly 2 of the rotating floor 100 can rotate synchronously with the treatment head 200 along the ring-shaped profile. During treatment, this ring-shaped closed rotating floor 100 requires the patient to be placed within the ring-shaped closed rotating floor 100. The space enclosed by the ring-shaped rotating floor 100 is relatively small. In such a confined space, some patients, especially those with claustrophobia, are prone to anxiety. When patients are nervous, their willingness to cooperate is reduced, which can affect the progress and effectiveness of the treatment.

[0067] In the present application, the main body section 11 is provided with an opening 113, and the first extension section 122 and the second extension section 123 extend in a direction away from the opening 113 of the main body section 11, respectively, so that the opening 113 of the main body section 11 is not blocked by the first extension section 122 and the second extension section 123. The floor assembly 2 is mounted on the frame assembly 1, so that the contour of the floor assembly 2 matches the contour of the frame assembly 1. During use, the floor assembly 2 forms an open structure with the opening 113, which is connected to the space in the treatment room. Therefore, when a patient moves into the floor assembly 2, the space within the floor assembly 2 connects with the rest of the treatment room, forming an open space. When the patient is placed in the rotating floor 100 of the present application, the patient is located in the open space, which can effectively relieve the patient's tension and thereby ensure the progress and effectiveness of the treatment. At the same time, setting the main section 11 to have an opening 113 can reduce the space occupied by the rotating floor 100 in the treatment room and ensure the beauty and simplicity of the treatment room; medical equipment such as the treatment bed can be moved from the opening 113 of the main section 11 to the main section 11, which can facilitate treatment operations.

[0068] In some specific embodiments, the floor assembly 2 can be connected to and driven by the treatment head 200. This means that movement of the treatment head 200 drives the floor assembly 2 in sync. The driving force of the treatment head 200 alone can drive the floor assembly 2, eliminating the need for an additional drive mechanism. This effectively simplifies the structure of the rotating floor 100 and reduces its manufacturing cost. Furthermore, the treatment room eliminates the need for additional installation space for the drive mechanism, expanding the available area and ensuring a more aesthetically pleasing and compact treatment room, in line with the trend toward further integration and miniaturization. The floor assembly 2 can be a single-layer structure.

[0069] When the floor assembly 2 and the treatment head 200 move, the floor assembly 2 will be positioned adjacent to or adjacent to the treatment head 200. The movement slot 111 of the main body section 11 and the second horizontal section 1233 of the second extension section 123 are exposed in the treatment room. The extension slot 121 of the movement slot 111 and the second horizontal section 1233 partially form a clearance space for the treatment head 200. This clearance space is used for movement of the treatment head 200. A portion of this clearance space is occupied by the treatment head 200, while the remaining portion is covered by the floor assembly 2. The extension length of the floor assembly 2 is greater than the extension length of the clearance space. The combination of the floor assembly 2 and the treatment head 200 maintains complete coverage of the clearance space during movement, ensuring that the clearance space remains covered during movement of the treatment head 200. This effectively prevents people from falling into the clearance space and also prevents external components from falling through the clearance space into the treatment room and causing damage to people or equipment.

[0070] When the treatment head 200 moves, the floor assembly 2 needs to move synchronously with the treatment head 200 so that the floor assembly 2 is always in contact with or adjacent to the treatment head 200, thereby preventing a large gap from forming between the floor assembly 2 and the treatment head 200. The corresponding portion of the avoidance space in the gap cannot be covered or occupied, thereby creating a risk of people falling through the gap. In the present application, using the treatment head 200 to drive the floor assembly 2 allows the treatment head 200 and the floor assembly 2 to move synchronously, and the floor assembly 2 blocks the avoidance space of the frame assembly 1 in real time when the treatment head 200 moves. The method of the treatment head 200 driving the floor assembly 2 also prevents the additional drive structure from being driven asynchronously with the treatment head 200, resulting in interference between the treatment head 200 and the floor assembly 2, or a gap between the floor assembly 2 and the treatment head 200, thereby partially exposing the movable groove 111. Therefore, the additional drive structure may increase the risk of people falling.

[0071] Reference Figure 5 and Figure 7 In some embodiments, the floor assembly 2 may include a first portion 23 and a second portion 24, which are spaced apart from each other. The gap between the first portion 23 and the second portion 24 is used to mount the treatment head 200, such that the first portion 23 and the second portion 24 are located on opposite sides of the treatment head 200. One end of the first portion 23 is located within the main body section 11 and is used to connect to the treatment head 200, while the other end of the first portion 23 can extend into the corresponding extension section 12. One end of the second portion 24 is located within the main body section 11 and is used to connect to the treatment head 200, while the other end of the second portion 24 can extend into the corresponding extension section 12.

[0072] Specifically, the first portion 23 may be connected to an end of the treatment head 200 adjacent to the first extension section 122, and the first portion 23 may extend from the movable slot 111 of the main body section 11 into the first extension slot 1221 of the first extension section 122. The second portion 24 may be connected to an end of the treatment head 200 adjacent to the second extension section 123, and the second portion 24 may extend from the movable slot 111 of the main body section 11 into the second extension slot 1231 of the second extension section 123. When the treatment head 200 moves, the first portion 23 and the second portion 24 connected to the treatment head 200 will move synchronously with the treatment head 200, with the portion of the first portion 23 that moves beyond the movable slot 111 being received within the first extension section 122, and the portion of the second portion 24 that moves beyond the movable slot 111 being received within the second extension section 123.

[0073] Reference Figure 5 and Figure 6 In some specific embodiments, a first connector 231 is fixedly connected to the first portion 23 of the floor assembly 2. A second connector 232 is provided at one end of the treatment head 200 for connection to the first portion 23. The second connector 232 is fixedly connected to the treatment head 200. The first connector 231 and the second connector 232 are connected so that the first portion 23 of the floor assembly 2 is indirectly connected to the treatment head 200 and can be driven by the treatment head 200.

[0074] When the treatment head 200 drives the first portion 23 of the floor assembly 2 to move, the different structures of the treatment head 200 and the floor assembly 2 result in a difference in the motion path of the treatment head 200 during rotation and the motion path of the first portion 23 of the floor assembly 2 during rotation. When the first connector 231 and the second connector 232 are fixed to each other, this difference in motion path between the treatment head 200 and the floor assembly 2 can affect the treatment head 200's drive of the floor assembly 2, and in serious cases, may cause damage to the rotating floor 100. To compensate for the difference in motion path between the treatment head 200 and the first portion 23 of the floor assembly 2, the first connector 231 and the second connector 232 are movably connected. When the treatment head 200 drives the first portion 23 of the floor assembly 2 to move, the first connector 231 can move relative to the second connector 232 to compensate for the difference in motion path between the treatment head 200 and the first portion 23 of the floor assembly 2. Furthermore, by enabling the first connecting member 231 and the second connecting member 232 to move relative to each other, the treatment head 200 and the first portion 23 can be flexibly connected to each other, thereby absorbing vibrations generated between the treatment head 200 and the first portion 23 .

[0075] The first connector 231 and the second connector 232 are preferably capable of producing an arc-shaped relative movement. When the relative movement strokes of the first connector 231 and the second connector 232 are consistent, compared to setting the first connector 231 and the second connector 232 to move in a straight line, setting the first connector 231 and the second connector 232 to produce an arc-shaped relative movement can facilitate the miniaturization of the first connector 231 and the second connector 232, reduce the weight and structural stress of the first connector 231 and the second connector 232, and effectively reduce costs. At the same time, it can also improve the safety factor of the overall structure formed by the first connector 231 and the second connector 232.

[0076] When the treatment head 200 moves upward, the first connecting member 231 moves inward relative to the second connecting member 232. When the treatment head 200 moves downward, the first connecting member 231 moves outward relative to the second connecting member 232. The inward side specifically refers to the side of the rotating floor facing the treatment couch, and the outward side specifically refers to the side of the rotating floor facing away from the treatment couch.

[0077] In some specific embodiments, one of the first connecting member 231 and the second connecting member 232 is provided with a second rolling member 2311, and the other is provided with a second rolling groove 2321 that cooperates with the second rolling member 2311. The second rolling groove 2321 is an arc-shaped groove. The second rolling groove 2321 is used to accommodate the second rolling member 2311 so that the second rolling member 2311 can move in the second rolling groove 2321. Therefore, the first part 23 connected to the first connecting member 231 can move relative to the treatment head 200 connected to the second connecting member 232.

[0078] In this embodiment, a second rolling member 2311 may be provided on the first connecting member 231, and a second rolling groove 2321 may be provided on the second connecting member 232. The first connecting member 231 may be provided with multiple second rolling members 2311, which are arranged on opposite sides of the first connecting member 231. For example, two second rolling members 2311 may be provided on opposite sides of the first connecting member 231. The second connecting member 232 may be provided with two second rolling grooves 2321, which are located on opposite sides of the first connecting member 231, and each second rolling groove 2321 is used to accommodate a second rolling member 2311 located on the same side. A shaft may be fixedly provided on the first connecting member 231, and the second rolling member 2311 is arranged on the shaft of the first connecting member 231 and is rotatable relative to the shaft. Furthermore, the width of the second rolling groove 2321 can be the same as or slightly larger than the outer diameter of the second rolling element 2311. The second rolling element 2311 can rotate when moving in the second rolling groove 2321, thereby making the movement of the second rolling element 2311 more stable and smooth. The second rolling element 2311 can be specifically a bearing.

[0079] In some specific embodiments, assuming that the arcuate portion 114, the connecting portion 116, the first arcuate transition portion 1224, and the second rolling groove 2321 of the second connecting member 232 are directly connected, the center of curvature of the arcuate portion 114 is O1, the center of curvature of the connecting portion 116 is O2, the center of curvature of the first arcuate transition portion 1224 is O3, and the center of curvature of the arcuate movement path of the first connecting member 231 (i.e., the extension path of the second rolling groove 2321 of the second connecting member 232) is O4. To prevent interference between the movement of the treatment head 200 and the floor assembly 2, and between the movement of the first connecting member 231 and the second connecting member 232, the centers of curvature O1, O2, O3, and O4 need to be collinear.

[0080] When arranging the rotating floor, in order to correspond to the isocenter of the treatment room and avoid other parts of the proton therapy system, the arc portion 114, the connecting portion 116, and the first arcuate transition portion 1224 can be predetermined; in order to ensure that the center of curvature O4 corresponding to the arcuate movement path of the first connecting member 231 can be collinear with O1, O2, and O3, and the movement of the treatment head 200 and the floor assembly 2, as well as the movement of the first connecting member 231 and the second connecting member 232 do not interfere with each other, R1:R2:R3:R4 are (8.9-9.1):(0.95-1.05):(0.45-0.55):(4.8-5.0). Preferably, R1:R2:R3:R4 are 9.03:1:0.5:4.92. The radius of the arcuate portion 114 is R1, the radius of the connecting portion 116 is R2, the radius of the first arcuate transition portion 1224 is R3, and the radius of the arcuate movement path of the first connecting member 231 is R4. After the centers of curvature and the half-holes of the arcuate portion 114, the connecting portion 116, and the first arcuate transition portion 1224 were determined, simulations using CAD (Computer Aided Design) software revealed that when the radius R4 of the arcuate movement path of the first connecting member 231 satisfies the aforementioned ratio, the movement of the treatment head 200 and the floor assembly 2, as well as the movement of the first connecting member 231 and the second connecting member 232, will not interfere with each other.

[0081] Reference Figure 7 and Figure 8 In some specific embodiments, the second portion 24 of the floor assembly 2 is fixedly connected to a third connector 241. The end of the treatment head 200 for connection to the second portion 24 is provided with a fourth connector 242, and the fourth connector 242 is fixedly connected to the treatment head 200. The third connector 241 is connected to the fourth connector 242, so that the second portion 24 of the floor assembly 2 is indirectly connected to the treatment head 200 and can be driven by the treatment head 200.

[0082] When the treatment head 200 drives the second portion 24 of the floor assembly 2 to move, the different structures of the treatment head 200 and the floor assembly 2 result in a difference in the movement path of the treatment head 200 during rotation and the movement path of the second portion 24 of the floor assembly 2. When the third connector 241 and the fourth connector 242 are fixed to each other, this difference in movement path between the treatment head 200 and the floor assembly 2 can affect the treatment head 200's drive of the floor assembly 2, and in severe cases, can cause damage to the rotating floor 100. To compensate for the difference in movement path between the treatment head 200 and the second portion 24 of the floor assembly 2, the third connector 241 and the fourth connector 242 are movably connected. When the treatment head 200 drives the second portion 24 of the floor assembly 2 to move, the third connector 241 can move relative to the fourth connector 242 to compensate for the difference in movement path between the treatment head 200 and the second portion 24 of the floor assembly 2.

[0083] The third connecting member 241 and the fourth connecting member 242 are preferably capable of producing an arc-shaped relative movement. When the relative movement strokes of the third connecting member 241 and the fourth connecting member 242 are consistent, compared to setting the third connecting member 241 and the fourth connecting member 242 to move relative to each other in a straight line, setting the third connecting member 241 and the fourth connecting member 242 to produce an arc-shaped relative movement can facilitate the miniaturization of the third connecting member 241 and the fourth connecting member 242, reduce the weight and structural stress of the third connecting member 241 and the fourth connecting member 242, and effectively reduce costs. At the same time, it can also improve the safety factor of the overall structure formed by the third connecting member 241 and the fourth connecting member 242.

[0084] When the treatment head 200 moves upward, the third connecting member 241 moves inward relative to the fourth connecting member 242. When the treatment head 200 moves downward, the third connecting member 241 moves outward relative to the fourth connecting member 242. The inward side specifically refers to the side of the rotating floor facing the treatment couch, and the outward side specifically refers to the side of the rotating floor facing away from the treatment couch.

[0085] In some specific embodiments, one of the third connecting member 241 and the fourth connecting member 242 is provided with a second rolling member 2311, and the other is provided with a second rolling groove 2321 that cooperates with the second rolling member 2311. The second rolling groove 2321 is an arc-shaped groove. The second rolling groove 2321 is used to accommodate the second rolling member 2311 so that the second rolling member 2311 can move in the second rolling groove 2321, thereby allowing the second part 24 connected to the third connecting member 241 to move relative to the treatment head 200 connected to the fourth connecting member 242.

[0086] In this embodiment, the third connecting member 241 may be provided with a second rolling member 2311, and the fourth connecting member 242 may be provided with a second rolling groove 2321. The third connecting member 241 may be provided with multiple second rolling members 2311, which are arranged on opposite sides of the third connecting member 241. For example, two second rolling members 2311 may be provided on opposite sides of the third connecting member 241, respectively. The fourth connecting member 242 may be provided with two second rolling grooves 2321, which are located on opposite sides of the third connecting member 241, and each second rolling groove 2321 is used to accommodate a second rolling member 2311 located on the same side. A shaft may be fixedly provided on the third connecting member 241, and the second rolling member 2311 may be arranged on the shaft of the third connecting member 241 and be rotatable relative to the shaft. Furthermore, the width of the second rolling groove 2321 on the third connecting member 241 can be the same as or slightly larger than the outer diameter of the second rolling member 2311 on the fourth connecting member 242. The second rolling member 2311 can rotate when moving within the second rolling groove 2321, thereby making the movement of the second rolling member 2311 more stable and smooth. Specifically, the second rolling member 2311 can be a bearing.

[0087] In some specific embodiments, assuming that the arcuate portion 114 of the main body segment 11, the second rolling groove 2321 of the fourth connector 242, and the second arcuate transition portion 1238 are directly connected, the center of curvature of the arcuate portion 114 is O1, the center of curvature of the arcuate movement path of the third connector 241 (i.e., the extension path of the second rolling groove 2321 of the fourth connector 242) is O5, and the center of curvature of the second arcuate transition portion 1238 is O6. To prevent interference between the movement of the treatment head 200 and the floor assembly 2, and between the movement of the third connector 241 and the fourth connector 242, the centers of curvature O1, O5, and O6 need to be collinear.

[0088] When arranging the rotating floor, the arcuate portion 114 and the second arcuate transition portion 1238 can be predetermined to align with the isocenter of the treatment room and avoid other components of the proton therapy system. To ensure that the center of curvature O5 corresponding to the arcuate movement path of the third connector 241 is collinear with O1 and O6, and that the movement of the treatment head 200 and the floor assembly 2, as well as the movement of the third connector 241 and the fourth connector 242, does not interfere with each other, the ratios R1:R5:R6 are (16-20):(60-70):(13-17). Preferably, the ratios R1:R5:R6 are 18:65:15. The radius of the arcuate movement path of the third connector 241 is R5, and the radius of the second arcuate transition portion 1238 is R6. After the centers of curvature and the half-holes of the arcuate portion 114 and the second arcuate transition portion 1238 were determined, simulations were performed using CAD software, revealing that when the radius R5 of the arcuate movement path of the third connecting member 241 satisfies the aforementioned ratio, the movement of the treatment head 200 and the floor assembly 2, as well as the movement of the third connecting member 241 and the fourth connecting member 242, will not interfere with each other.

[0089] Furthermore, to facilitate smoother movement of the treatment head 200 and the second portion 24, R1:R5:R6:R7:R8 is (16-20):(60-70):(13-17):(11-14):(16-20). Preferably, R1:R5:R6:R7:R8 is 18:65:15:13:18. The portion where the transition section 1237 connects to the vertical section 1232 is an arc-shaped profile with a radius of R7, and the portion where the transition section 1237 connects to the third horizontal section 1234 is an arc-shaped profile with a radius of R8. The structure and position of the transition section 1237 are predetermined so that the isocenter of the rotating floor treatment room aligns with and avoids other components of the proton therapy system.

[0090] In order to reduce the noise generated when the second rolling element 2311 rolls in the second rolling groove 2321 , the outer periphery of the second rolling element 2311 may be wrapped with a flexible material such as polyurethane.

[0091] In the present application, treatment head 200 is connected to first portion 23 of floor assembly 2 via a first connection structure formed by first connector 231 and second connector 232. Treatment head 200 is connected to second portion 24 of floor assembly 2 via a second connection structure formed by third connector 241 and fourth connector 242. The first and second connection structures respectively achieve movable engagement between treatment head 200 and corresponding portions of floor assembly 2 by means of rolling elements mating with arcuate rolling grooves. The simple structures of the first and second connection structures facilitate connection of treatment head 200 to floor assembly 2. Furthermore, by adopting a structure in which the second rolling member 2311 is installed on the first connecting member 231 and the third connecting member 241, and the second rolling member 2311 cooperates with the corresponding second rolling groove 2321, when the movement between the treatment head 200 and the floor assembly 2 becomes stuck due to aging of components, external contamination, etc. after the device has been running for a period of time, it is only necessary to replace the second rolling member 2311 or clean the second rolling groove 2321, and there is no need to replace the first connecting structure or the second connecting structure as a whole, which simplifies the maintenance operations of the first connecting structure and the second connecting structure and can reduce maintenance costs.

[0092] When the first connecting member 231 and the second connecting member 232 are coordinated by a rolling member and a rolling groove, and the third connecting member 241 and the fourth connecting member 242 are coordinated by a rolling member and a rolling groove, if the driving force of the treatment head 200 to drive the first part 23 and the second part 24 of the floor assembly 2 is large, it will have a large force between the rolling member and the rolling groove, affecting the service life of the rolling member and the coordination operation with the rolling groove.

[0093] Reference Figure 12To reduce the driving resistance when the treatment head 200 drives the first and second parts 23, 24 of the floor assembly 2, the first and second parts 23, 24 of the floor assembly 2 are each lightweight. Specifically, the first and second parts 23, 24 of the floor assembly 2 are each connected by a plurality of floor panels 21. Each floor panel 21 can be lightweighted to reduce the weight of the first and second parts 23, 24 of the floor assembly 2, thereby reducing the driving resistance when the treatment head 200 drives the first and second parts 23, 24 of the floor assembly 2. The floor panels 21 include a first surface 213 facing the treatment area and a second surface 214 facing away from the treatment area. The second surface 214 can be provided with at least one hollow portion 215 to achieve lightweighting. The second surface 214 can include multiple hollow portions 215, which are spaced sequentially along the width of the frame assembly 1. Furthermore, the floor panels 21 can also be provided with hollow portions 215 on two opposing sides of the frame assembly 1 to further reduce the weight of the floor panels 21. The first surface 213 of the floor 21 can be a complete surface without any cutouts. When installing or debugging equipment such as a proton accelerator connected to the treatment head 200, a maintenance wrench or a missing bolt could fall onto the floor assembly 2. The proton accelerator is located on the side of the floor assembly 2 facing away from the treatment area. The maintenance wrench or missing bolt would be blocked by the complete first surface 213 of the floor 21, thereby preventing the wrench or bolt from falling into the treatment space and causing damage to personnel or equipment within.

[0094] Reference Figure 10 In some specific embodiments, the second extension section 123 of the rotating floor is in contact with the ground but not fixed. The ground is specifically the ground of the lower space of the treatment room. Specifically, the third horizontal section 1234 of the second extension section 123 is located on the ground, and the third horizontal section is connected to a connecting piece 1235, and a foot support 1236 is provided on the connecting piece 1235. The foot support 1236 is used to abut against the ground to apply a supporting force to the third horizontal section 1234 through the connecting piece 1235. The connecting piece 1235 can have a certain degree of elasticity. For example, the connecting piece 1235 is a metal sheet structure with elasticity; in addition, the part of the foot support 1236 that contacts the ground can be provided with a flexible buffer portion, and the flexible buffer portion can be made of a flexible material such as rubber.

[0095] Multiple foot supports 1236 and connecting plates 1235 can be provided respectively, a part of the connecting plates 1235 are connected to the third horizontal section 1234 , a part of the connecting plates 1235 are connected to the transition section 1237 , and each connecting plate 1235 is connected to one or more foot supports 1236 .

[0096] When the floor assembly 2 of the treatment head 200 moves, the rotating floor 100 will vibrate. At the foot support 1236, the foot support 1236 can absorb the vibration of the frame assembly 1 through the buffering of the flexible buffer part, thereby reducing the vibration level of the rotating floor 100. In addition, the connecting piece 1235 produces elastic shaking due to the vibration of the frame assembly 1. The connecting piece 1235 absorbs the vibration of the frame assembly 1 through its own elastic deformation, thereby reducing the vibration level of the rotating floor 100. The buffering effect of the connecting piece 1235 and the foot support 1236 can greatly reduce the vibration level of the rotating floor 100 and reduce the noise generated when the rotating floor 100 moves. Figure 11 In some embodiments, adjacent floor panels 21 in the first and second sections 23, 24 of the floor assembly 2 can be connected by rubber members 22. Multiple floor panels 21 in the first and second sections 23, 24 are connected by rubber members 22 to form a chain-like structure. Specifically, the floor panels 21 can be provided with connecting grooves 211 at opposite ends along the extension direction of the frame assembly 1. A portion of the rubber member 22 is inserted into the connecting groove 211 of one floor panel 21, while another portion of the rubber member 22 is inserted into the connecting groove 211 of another adjacent floor panel 21, thereby connecting adjacent floor panels 21 via the rubber members 22. During installation, the rubber member 22 can be inserted into the connecting groove 211 from one side, with the installation direction of the rubber member 22 perpendicular to the movement direction of the floor panel 21. The floor panel 21 can be provided with a position limiter for the rubber member 22 along its movement direction. For example, the walls of the connecting groove 211 abut against opposite ends of the rubber member 22 along the movement direction of the floor panel 21 to limit the position of the rubber member 22. Adjacent floor panels 21 are connected by using rubber members 22 . The rubber has good flexibility and can effectively reduce the noise generated between adjacent floor panels 21 when the floor assembly 2 moves.

[0097] To prevent the rubber member 22 from shifting when the floor assembly 2 moves, the floor panel 21 may also be provided with an anti-shift clip 216, one end of which is located within the connecting groove 211. When the rubber member 22 is connected to the floor panel 21, the opposite ends of the rubber member 22 are located within corresponding connecting grooves 211 in the adjacent floor panel 21. At this time, the opposite ends of the rubber member 22 are abutted and pressed by the anti-shift clips 216 in the corresponding connecting grooves 211, thereby securing the rubber member 22 and preventing it from shifting when the floor assembly 2 moves.

[0098] Reference Figure 3 and Figure 4In some specific embodiments, a first rolling member 212 may be provided on a side of the floor panel 21, and the frame assembly 1 may be provided with a first rolling groove 112 that cooperates with the first rolling member 212. The width of the first rolling groove 112 may be adapted to the outer diameter of the first rolling member 212. For example, the width of the first rolling groove 112 may be the same as or slightly larger than the outer diameter of the first rolling member 212. The first rolling groove 112 is partially located in the first extension section 122, partially located in the main section 11, and partially located in the second extension section 123, so that the first rolling member 212 can slide on the first extension section 122, the second extension section 123, and the main section 11. A first rolling member 212 may be provided on each side of the floor panel 21, and a first rolling groove 112 may also be provided on each side of the frame assembly 1. The first rolling member 212 on the same side cooperates with the first rolling groove 112 to allow the floor panel 21 to move on the frame assembly 1. The side edges of the floor panel 21 and the frame assembly 1 are specifically two side edges of the floor panel 21 and the frame assembly 1 along the width direction of the frame assembly 1 .

[0099] The floor panel 21 may be provided with an axle on the side thereof, and the first rolling member 212 may be mounted on the axle and rotate about the axle. The first rolling member 212 may be a bearing. To reduce noise generated by the first rolling member 212 rolling within the first rolling groove 112, the first rolling member 212 may be coated with a flexible material such as polyurethane.

[0100] In the rotating floor 100, the frame assembly 1, the first connecting member 231, the second connecting member 232, the third connecting member 241, the fourth connecting member 242, and the floor 21 can be made of 6061-T6 material respectively. The 6061-T6 material is basically unaffected by the magnetic field, reducing the degree of aging of the material due to radiation.

[0101] The present invention also provides a proton therapy system, including a therapy head 200, a proton accelerator, and the aforementioned rotating floor 100.

[0102] A proton accelerator is connected to the treatment head 200 and is used to accelerate protons to generate a high-energy proton beam, which can be provided to the treatment head 200 and emitted through the treatment head 200 to irradiate the patient's lesion. The proton accelerator and the treatment head 200 can be located on opposite sides of the rotating floor 100, with the treatment head 200 located within the treatment space of the treatment room, while the proton accelerator is shielded by the rotating floor 100 and the walls of the treatment room.

[0103] In the rotating floor 100, the main section 11 of the rotating floor 100 is exposed to the treatment room, while the extension sections 12 of the rotating floor 100 are covered by the treatment room walls. Specifically, the first extension section 122 is covered by the treatment room's top wall, and the second extension section 123 is covered by the treatment room's bottom wall. The treatment head 200 rotates on the main section 11 exposed to the treatment room, and the rotation angle of the treatment head 200 can range from -5° to 185°.

[0104] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limiting the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the invention without departing from the principles and purpose of the present invention. All such changes shall fall within the scope of protection of the claims of the present invention.

Claims

1. A rotating floor, characterized in that: The invention comprises a frame assembly (1) and a floor assembly (2) arranged on the frame assembly (1); the frame assembly (1) comprises a main section (11), the main section (11) is provided with a movable groove (111) for avoiding a treatment head (200), and the extension profile of the main section (11) is an open path and forms an opening (113); the two free ends of the main section (11) are respectively connected to an extension section (12), the extension section (12) extends to a wall embedded in a treatment room, and the portion of the extension section (12) not cooperating with the treatment head (200) is shielded by the treatment room, and the extension section (12) is respectively provided with an extension groove (121) communicating with the movable groove (111); A floor assembly (2) is provided on the frame assembly (1), the floor assembly (2) being used to connect to the treatment head (200) and be driven by the treatment head (200), the extension length of the floor assembly (2) being greater than the extension length of the movable slot (111), and the combination formed by the floor assembly (2) and the treatment head (200) maintaining complete coverage of the movable slot (111) and the portion of the extension slot (121) exposed in the treatment room during movement; The portion of the floor assembly (2) that exceeds the movable groove (111) is accommodated in the extension groove (121), and the extension grooves (121) of the two extension sections (12) are respectively reserved with movable spaces (1211), and the floor assembly (2) is driven by the treatment head (200) to move into or out of the movable spaces (1211).

2. The rotating floor according to claim 1, characterized in that: The extension length of the extension slot (121) is greater than or equal to the maximum length that the floor assembly (2) can extend beyond the end portion of the corresponding movable slot (111).

3. The rotating floor according to claim 1, characterized in that: The upper free end of the main body section (11) is connected to the first extension section (122), and the lower free end of the main body section (11) is connected to the second extension section (123); the first extension section (122) includes an inclined section (1222) that rises obliquely from the main body section (11) and a first horizontal section (1223) that extends horizontally from the inclined section (1222); the second extension section (123) includes a second horizontal section (1233) that is connected to the main body section (11) and extends horizontally, a vertical section (1232) that extends vertically, and a third horizontal section (1234) that is connected to the vertical section (1232) and extends horizontally; the second horizontal section (1233) and the third horizontal section (1234) are located on the same side of the vertical section (1232); The first extension section (122) is covered by the top wall of the treatment room, the second horizontal section (1233) and the main section (11) are exposed in the treatment room so that the treatment head (200) moves on the main section (11) and the second horizontal section (1233), and the vertical section (1232) and the third horizontal section (1234) are covered by the bottom wall of the treatment room.

4. The rotating floor according to claim 3, characterized in that: The third horizontal section (1234) is connected to a connecting piece (1235), and the connecting piece (1235) is provided with a foot support (1236), and the foot support (1236) abuts against the ground to support the third horizontal section (1234); The portion of the foot support (1236) in contact with the ground is provided with a flexible buffer portion, and the flexible buffer portion is used to absorb vibrations generated by the frame assembly (1); and / or the connecting piece (1235) is elastically deformed to absorb vibrations generated by the frame assembly (1).

5. The rotating floor according to claim 3, characterized in that: The floor assembly (2) includes a first portion (23) and a second portion (24), wherein the first portion (23) and the second portion (24) are separated and form a space for accommodating a treatment head (200); One end of the first part (23) is located in the main body section (11) and is used to connect to the treatment head (200), and the other end of the first part (23) extends into the first extension section (122); one end of the second part (24) is located in the main body section (11) and is used to connect to the treatment head (200), and the other end of the second part (24) extends into the second extension section (123); the first part (23) and the second part (24) are synchronously driven by the treatment head (200).

6. The rotating floor according to claim 5, characterized in that: The first part (23) is fixedly connected to a first connecting member (231), the first connecting member (231) is movably connected to a second connecting member (232), and the first connecting member (231) is capable of arc-shaped movement relative to the second connecting member (232), and the second connecting member (232) is used for fixed connection to the treatment head (200); The second part (24) is fixedly connected to a third connecting member (241), the third connecting member (241) is movably connected to a fourth connecting member (242), and the third connecting member (241) is capable of arc-shaped movement relative to the fourth connecting member (242), and the fourth connecting member (242) is used for fixed connection to the treatment head (200); When the treatment head (200) moves upward, the first connecting member (231) moves inward relative to the second connecting member (232), and the third connecting member (241) moves inward relative to the fourth connecting member (242); when the treatment head (200) moves downward, the first connecting member (231) moves outward relative to the second connecting member (232), and the third connecting member (241) moves outward relative to the fourth connecting member (242).

7. The rotating floor according to claim 6, characterized in that: One of the first connecting member (231) and the second connecting member (232) is provided with a second rolling member (2311), and the other is provided with a circular arc-shaped second rolling groove (2321) that cooperates with the second rolling member (2311); the first connecting member (231) and the second connecting member (232) are movably connected through the cooperation of the second rolling member (2311) and the second rolling groove (2321), so that the first part (23) can move relative to the treatment head (200); One of the third connecting member (241) and the fourth connecting member (242) is provided with a second rolling member (2311), and the other is provided with a circular arc-shaped second rolling groove (2321) that cooperates with the second rolling member (2311). The third connecting member (241) and the fourth connecting member (242) are movably connected through the cooperation of the second rolling member (2311) and the second rolling groove (2321), so that the second part (24) can move relative to the treatment head (200).

8. The rotating floor according to claim 6, characterized in that: The main body section (11) comprises an arcuate portion (114), a straight portion (115), and a connecting portion (116) connecting the arcuate portion (114) and the straight portion (115); the radius of the arcuate portion (114) is R1, and the radius of the connecting portion (116) is R2; the inclined section (1222) and the first horizontal section (1223) are connected via a first arcuate transition portion (1224) with a radius of R3; the radius of the arcuate moving path of the first connecting member (231) is R4; Among them, R1:R2:R3:R4 is (8.9~9.1):(0.95~1.05):(0.45~0.55):(4.8~5.0).

9. The rotating floor according to claim 8, characterized in that: The radius of the arc-shaped moving path of the third connecting member (241) is R5; the second horizontal section (1233) and the vertical section (1232) are connected via a second arc-shaped transition section (1238) with a radius of R6; Wherein, the R1:R5:R6 is (16-20):(60-70):(13-17).

10. The rotating floor according to claim 9, characterized in that: A transition section (1237) is provided between the vertical section (1232) and the third horizontal section (1234); the portion where the transition section (1237) connects to the vertical section (1232) is an arc-shaped profile with a radius of R7, and the portion where the transition section (1237) connects to the third horizontal section (1234) is an arc-shaped profile with a radius of R8; Among them, R1:R5:R6:R7:R8 is (16~20):(60~70):(13~17):(11~14):(16~20).

11. The rotating floor according to claim 7, characterized in that: The second rolling element (2311) is a bearing, and the outer periphery of the second rolling element (2311) is wrapped with a polyurethane layer.

12. The rotating floor according to claim 1, characterized in that: The floor assembly (2) comprises a plurality of floor panels (21) and rubber members (22) connecting adjacent floor panels (21); the ends of the floor panels (21) are provided with connecting grooves (211); a portion of the rubber member (22) is embedded in the connecting groove (211) of one floor panel (21); and another portion of the rubber member (22) is embedded in the connecting groove (211) of another floor panel (21); and the plurality of floor panels (21) are connected respectively by the rubber members (22) to form a chain structure.

13. The rotating floor according to claim 12, characterized in that: A first rolling member (212) is provided on the side of the floor (21), and the frame assembly (1) is provided with a first rolling groove (112) that cooperates with the first rolling member (212). The floor (21) slides in the first rolling groove (112) via the first rolling member (212) so that the floor assembly (2) moves in the frame assembly (1).

14. The rotating floor according to claim 12, characterized in that: The floor (21) is further provided with an anti-deviating buckle (216) extending into the connecting groove (211), and the anti-deviating buckle (216) presses the rubber part (22) located in the connecting groove (211) to fix the rubber part (22).

15. The rotating floor according to claim 12, characterized in that: The floor (21) comprises a second surface (214) facing away from the treatment area, and the second surface (214) is provided with at least one hollow portion (215); And / or, the floor (21) includes a pair of opposite side surfaces along the width direction of the frame assembly (1), and each of the pair of side surfaces is provided with a hollow portion (215).

16. A proton therapy system, characterized in that: include: The rotating floor according to any one of claims 1 to 15; A treatment head (200) is connected to the rotating floor (100) and is used to drive the rotating floor (100) to rotate; A proton accelerator is used for accelerating protons to provide a beam to the treatment head (200), and the proton accelerator and the treatment head (200) are located on opposite sides of the rotating floor.

17. The proton therapy system according to claim 16, wherein: The main section (11) and the second horizontal section (1233) of the rotating floor are exposed to the treatment room, and the second horizontal section (1233) is pre-embedded in the bottom wall of the treatment room. The second horizontal section (1233) is fixedly connected to the main section (11) by fasteners. The first extension section (122), the vertical section (1232) and the third horizontal section (1234) of the rotating floor are covered by the wall of the treatment room. The treatment head (200) rotates on the main body section (11) and the second horizontal section (1233), and the rotation angle of the treatment head (200) is -5° to 185°.

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