Rack assembly for a radiotherapy device and medical diagnostic system

Abstract

This application relates to gantry assemblies for radiotherapy equipment and medical diagnostic systems. A gantry assembly for radiotherapy equipment includes: a fixed gantry; a rotating gantry rotatably connected to the fixed gantry, the rotating gantry being annular and having multiple mounting positions for mounting imaging devices and / or treatment devices; and a counterweight assembly including a first counterweight module and a second counterweight module mounted on the rotating gantry, wherein a first line connecting the first counterweight module to the center of the rotating gantry and a second line connecting the second counterweight module to the center of the rotating gantry are non-perpendicular and non-collinear. The aforementioned gantry assembly for radiotherapy equipment and medical diagnostic system can improve the rigidity of the rotating gantry (rotor) while more precisely adjusting its dynamic balance, reducing deformation, vibration, noise, and image artifacts during high-speed rotation.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to rack assemblies for radiotherapy equipment and medical diagnostic systems. Background Technology

[0002] In the field of medical equipment, especially in composite systems assisted by radiotherapy (RT), computed tomography (CT), and digital radiography (DR), rotor structure design under high-speed conditions is one of the key technical challenges. Traditional rotor structures lack sufficient rigidity and are prone to deformation under centrifugal force at high speeds, affecting the isocentric accuracy and stability of the equipment. Furthermore, traditional rotor structures are difficult to dynamically balance precisely, leading to vibration, noise, and image artifacts during high-speed rotation, thus impacting equipment performance and imaging quality. Utility Model Content

[0003] Therefore, it is necessary to provide a gantry assembly for radiotherapy equipment and a medical diagnostic system to improve the rigidity of the rotating gantry (rotor) and to more accurately adjust its dynamic balance, thereby reducing deformation, vibration, noise and image artifacts during high-speed rotation.

[0004] A gantry assembly for a radiotherapy device, the gantry assembly comprising:

[0005] Fixed frame;

[0006] A rotating gantry, rotatably connected to the fixed gantry, the rotating gantry being annular and having multiple mounting positions for mounting imaging devices and / or therapeutic devices; and

[0007] The counterweight assembly includes a first counterweight module and a second counterweight module installed on the rotating frame. The first line connecting the first counterweight module to the center of the rotating frame and the second line connecting the second counterweight module to the center of the rotating frame are non-perpendicular and non-collinear.

[0008] In some embodiments, the first counterweight module and / or the second counterweight module include a plurality of detachable counterweights.

[0009] In some embodiments, a plurality of the counterweights are distributed along the axial and / or circumferential direction of the rotating frame.

[0010] In some embodiments, a portion of the mounting positions are located on the inner circumferential surface of the rotating frame, and a portion of the mounting positions are located on the outer circumferential surface of the rotating frame;

[0011] Alternatively, at least a portion of the mounting position is located on the inner circumferential surface of the rotating frame;

[0012] Alternatively, at least a portion of the mounting position may be located on the outer peripheral surface of the rotating frame.

[0013] In some embodiments, the rotating frame is open at one end along a first direction and rotatably connected to the fixed frame at the other end, wherein the first direction is the axial direction of the rotating frame;

[0014] The rotating frame is provided with a reinforcing member connected to one end of the fixed frame along the first direction away from it.

[0015] In some embodiments, the circumferential surface of the rotating frame is provided with pipeline holes.

[0016] In some embodiments, the inner side of the rotating frame is provided with an interface board for electrical connection with external cables and internal components.

[0017] A medical diagnostic system includes a gantry assembly of the aforementioned radiotherapy device, and further includes the imaging device and the treatment device.

[0018] In some embodiments, the X-ray tube and detector of the imaging device are mounted on the inner peripheral surface of the rotating frame, and the electrical components of the imaging device are mounted on the outer peripheral surface of the rotating frame.

[0019] In some embodiments, the treatment head and electronic field imaging device of the treatment device are mounted on the inner peripheral surface of the rotating gantry, and the electrical components of the treatment device are mounted on the outer peripheral surface of the rotating gantry.

[0020] The aforementioned radiotherapy equipment gantry assembly and medical diagnostic system utilize a multi-dimensional balance adjustment system constructed by setting up a first and second counterweight module in a spatial arrangement that is neither perpendicular nor collinear with the center of the rotating gantry. This design not only enables precise static balance adjustment under static conditions by adjusting the weight and position of the two counterweight modules to align the center of mass of the rotating gantry with its center, avoiding initial eccentricity caused by uneven mass distribution; but also, under high-speed operating conditions, the two counterweight modules can further generate a composite counterweight torque, effectively counteracting the dynamic centrifugal force imbalance caused by the asymmetrical installation of treatment devices and / or imaging devices on the rotating gantry. This significantly improves the dynamic stiffness of the rotating gantry, suppresses centrifugal deformation, and ensures isocentric accuracy. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a medical diagnostic system according to one embodiment of this application.

[0022] Figure 2 This is a front view of a medical diagnostic system according to an embodiment of this application.

[0023] Figure 3 This is a partial schematic diagram of the medical diagnostic system at the first counterweight module in one embodiment of this application.

[0024] Figure 4 This is a partial schematic diagram of the medical diagnostic system at the pipeline hole in one embodiment of this application.

[0025] Figure 5 This is a partial schematic diagram of the medical diagnostic system at the pipeline hole and interface plate in one embodiment of this application.

[0026] Figure label:

[0027] 100 Fixed frame; 200 Rotating frame; 210 Pipe hole; 310 First counterweight module; 311 Counterweight component; 320 Second counterweight module; 400 Reinforcing component; 500 Interface board; 610 First X-ray tube; 620 First detector; 710 Second X-ray tube; 720 Second detector; 810 Treatment head; 820 Electron field imaging device; 910 Electrical section; 920 Cooling module; L, First connection; K, Second connection. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0034] See Figures 1 to 2 An embodiment of this application provides a gantry assembly for a radiotherapy device, comprising a fixed gantry 100, a rotating gantry 200, and a counterweight assembly. The rotating gantry 200 is rotatably connected to the fixed gantry 100, and is annular in shape, with multiple mounting positions for mounting imaging devices and / or treatment devices. The counterweight assembly includes a first counterweight module 310 and a second counterweight module 320 mounted on the rotating gantry 200. The first counterweight module 310 and the center O of the rotating gantry 200 are connected by a first line L, and the second counterweight module 320 and the center O of the rotating gantry 200 are connected by a second line K, which are non-perpendicular and non-collinear.

[0035] The gantry assembly of the radiotherapy equipment in the above embodiments constructs a multi-dimensional balance adjustment system by setting the first counterweight module 310 and the second counterweight module 320 in a spatial arrangement that is neither perpendicular nor collinear with the center of the rotating gantry 200. This design not only enables precise static balance adjustment under static conditions by adjusting the weight and position of the two counterweight modules to make the center of mass of the rotating gantry 200 coincide with its center, avoiding initial eccentricity caused by uneven mass distribution; but also, under high-speed operating conditions, the two counterweight modules can further generate a composite counterweight torque to effectively counteract the dynamic centrifugal force imbalance caused by the asymmetrical installation of treatment devices and / or imaging devices in the rotating gantry 200, thereby significantly improving the dynamic stiffness of the rotating gantry 200 and suppressing centrifugal deformation to ensure isocentric accuracy.

[0036] Specifically, if the line connecting the two counterweight modules to the center of the rotating gantry 200 is collinear (located on the same straight line), only static balance in a single direction can be adjusted, and torque imbalances during rotation (such as tilting or torsion) cannot be corrected. If the line connecting the two counterweight modules is perpendicular (e.g., symmetrically distributed at 90°), balance can only be adjusted in two orthogonal directions, but it is still difficult to cope with complex vibration modes caused by asymmetrical loads (such as non-uniform distribution of treatment heads, detectors, etc.). A non-perpendicular and non-collinear layout can avoid the limitations of single-plane balance, providing multi-directional balance adjustment capabilities, allowing the two counterweight modules to simultaneously affect multiple degrees of freedom (such as radial and tangential forces and moments), thereby more flexibly compensating for dynamic imbalances in the rotating gantry 200 caused by asymmetrically mounted components (such as treatment heads, detectors, etc.). For example, if one side of the rotating gantry 200 is unbalanced due to the installation of the treatment head, dynamic balance optimization can be achieved by adjusting the position and weight of the two counterweight modules and applying compensating forces at different angles, reducing vibration and image artifacts. Furthermore, during high-speed rotation, centrifugal force amplifies imbalances, making it difficult for traditional symmetrical counterweights to accurately match the actual load distribution. The non-perpendicular and non-collinear design allows for the formation of a compound balancing torque by adjusting the two counterweight modules, more precisely counteracting the dynamic eccentric force during high-speed rotation and improving the stability of the rotating frame.

[0037] See Figures 1 to 2 In some embodiments, the circumferential surface of the rotating frame 200 is provided with multiple mounting positions as described above, and the first counterweight module 310 and the second counterweight module 320 are mounted on the circumferential surface of the rotating frame 200. This significantly improves the overall rigidity of the structure. As the main load-bearing area of ​​the rotating frame 200, the circumferential surface, with its annular structure, inherently possesses high bending and torsional stiffness. Concentrating the weight distribution here allows the load to be transmitted more directly through the main structure of the rotating frame 200, reducing cantilever effects and localized stress concentration. Furthermore, circumferential mounting helps to form a symmetrical or controllable load distribution, further optimizing the force transmission path, thereby effectively suppressing structural deformation caused by centrifugal force during high-speed rotation.

[0038] Alternatively, in other embodiments, the first counterweight module 310 and the second counterweight module 320 may be mounted on the end face of the rotating frame 200.

[0039] See Figures 1 to 3 In some embodiments, the first counterweight module 310 and / or the second counterweight module 320 include a plurality of detachable counterweights 311.

[0040] Preferably, both the first counterweight module 310 and the second counterweight module 320 are configured as multiple counterweights 311. The weight of each counterweight 311 may be the same or different.

[0041] Each counterweight 311 can be made of the same or different materials. The shape of the counterweight 311 can be selected according to installation needs and is not limited thereto. The counterweight 311 can be detachably installed on the rotating frame 200 via a snap-fit ​​structure.

[0042] In the above embodiments, the first counterweight module 310 and / or the second counterweight module 320 are composed of multiple detachable counterweight components 311, achieving flexible and precise static and dynamic balance adjustment. Users can finely adjust the total weight and center of mass distribution of the counterweight module by individually adding, removing, replacing, or adjusting the position of individual counterweight components 311, based on the mass and distribution of the treatment and imaging devices actually installed on the rotating gantry 200. This discrete configuration allows the system to accurately compensate for static and dynamic imbalances caused by asymmetrical loads with smaller step increments. Especially when dealing with complex torques or high-order vibration modes, it achieves a balance accuracy that traditional integral counterweights cannot reach. This not only significantly improves stability under high-speed rotation and effectively reduces vibration and image artifacts, but also greatly enhances the system's engineering adaptability and maintenance convenience, avoiding the cumbersome process of disassembling or resetting the entire system as required by traditional counterweight solutions.

[0043] See Figures 1 to 3 In some embodiments, multiple counterweights 311 are distributed along the axial direction of the rotating frame 200.

[0044] In the above embodiment, multiple counterweights 311 are spaced apart along the axial direction (first direction) of the rotating frame 200, forming an axial torque adjustment gradient. Compared to a single counterweight 311, this design can more accurately compensate for torque imbalance caused by the asymmetrical axial installation of imaging devices and / or treatment devices, enabling more precise control during dynamic balance adjustment, further achieving precise fine-tuning of dynamic balance, thereby further reducing vibration and noise, reducing image artifacts, and improving treatment positioning accuracy and imaging quality.

[0045] Alternatively, in some embodiments, multiple counterweights 311 are distributed circumferentially along the rotating frame 200. Alternatively, multiple counterweights 311 are distributed both axially and circumferentially along the rotating frame 200. Both of these arrangements also enable fine-tuning during balance adjustments, allowing for precise micro-adjustments, further reducing vibration and noise, and improving treatment positioning accuracy and imaging quality.

[0046] See Figures 1 to 3 In some embodiments, some mounting positions are located on the inner circumferential surface of the rotating frame 200, and some mounting positions are located on the outer circumferential surface of the rotating frame 200.

[0047] Specifically, some imaging devices and / or therapeutic devices are mounted on the inner peripheral surface of the rotating gantry 200, extending inward from the inner peripheral surface of the rotating gantry 200; and some are mounted on the outer peripheral surface of the rotating gantry 200, extending outward from the outer peripheral surface of the rotating gantry 200.

[0048] Preferably, the core components of the imaging and / or therapeutic devices are built-in, thereby protecting them from damage by the rotating gantry 200. Preferably, heavier components are built-in, so that the larger centrifugal force of such components is transferred to the rotating gantry 200 when it rotates, protecting these structures and improving structural reliability. Preferably, components with high radiation shielding requirements are externally placed, so that the rotating gantry 200 can block radiation generated by the inner core components, reducing the radiation shielding requirements and extending service life.

[0049] In the above embodiments, the design of providing mounting positions both inside and outside fully utilizes the space on both sides, allowing the rotating frame 200 to support a greater number of components, thereby enabling the integrated setup of multiple subsystems. Furthermore, it avoids the situation where all systems are located on the inside, resulting in an excessively large rotating frame 200, and also avoids the situation where all systems are located on the outside, requiring excessive support structures to accommodate an oversized cantilever. In addition, the load distribution on the inner and outer circumferential surfaces balances the torque, suppressing the torsional deformation of the frame caused by traditional single-sided mounting.

[0050] Of course, in other embodiments, the mounting position may be located at least partially on the inner circumferential surface of the rotating frame 200; or, at least partially on the outer circumferential surface of the rotating frame 200.

[0051] See Figures 1 to 3 In some embodiments, the rotating frame 200 is open at one end along the first direction, and the other end is rotatably connected to the fixed frame 100. The rotating frame 200 is provided with a reinforcing member 400 connected to the fixed frame 100 at the end along the first direction away from the fixed frame 100.

[0052] Specifically, the rotating gantry 200 is rotatably connected to the fixed gantry 100 via bearings. In the above embodiment, the reinforcement 400 enhances the local stiffness and deformation resistance of the open end of the rotating gantry 200. Under high-speed rotation conditions, the open end is prone to deformation due to its distance from the bearing support and the large centrifugal load. The reinforcement 400 directly strengthens this weak area, enhancing its resistance to centrifugal force, thereby effectively suppressing deformation at the open end, ensuring the overall structural stability and operational accuracy of the rotating gantry 200, and contributing to maintaining the isocentric accuracy of the treatment and imaging subsystems.

[0053] Furthermore, in some embodiments, the reinforcement 400 is annular.

[0054] In the embodiment shown in the attached drawings, the reinforcing member 400 includes multiple arc-shaped plates, which are connected by welding or threaded fasteners. Alternatively, a single, integrally formed reinforcing member 400 can also be used.

[0055] Understandably, when the rotating frame 200 rotates at high speed, its open end, away from the bearing, is subjected to a large radially outward centrifugal force. By adding a reinforcing member 400 at this point, the rigidity and deformation resistance of the rotating frame 200 can be improved. The annular reinforcing member 400 forms a closed force-bearing ring with the rotating frame 200, effectively dispersing the centrifugal load and cantilever bending moment generated during high-speed rotation, thereby reducing the deformation of the open end of the rotating frame 200.

[0056] In other embodiments, the reinforcement 400 may also be arc-shaped.

[0057] See Figure 4 In some embodiments, the circumferential surface of the rotating frame 200 is provided with a pipeline hole 210.

[0058] Specifically, the shape of the conduit hole 210 can be circular, elliptical, polygonal, or irregular. Multiple conduit holes 210 can be provided, and their locations can be determined as needed.

[0059] In the above embodiments, by providing conduit holes 210 on the circumferential surface of the rotating frame 200, optimized layout and efficient management of internal cables and conduits are achieved. The design of the conduit holes 210 allows various signal lines, power lines, and cooling pipes to be arranged in an orderly manner along the circumferential surface of the rotating frame 200, reducing the risk of entanglement and vibration interference of pipes during high-speed rotation and improving equipment reliability. At the same time, it can also shorten the signal transmission path and improve the system response speed.

[0060] See Figures 4 to 5 In some embodiments, the inner side of the rotating frame 200 is provided with an interface board 500 for electrical connection with external cables and internal devices.

[0061] Specifically, all external cables pass through the conduit hole 210 and are connected to the interface board 500 via a quick-connect structure. The interface board 500 then supplies power and exchanges signals to the various internal components, achieving both connectivity and relative independence of internal and external power and signals. Preferably, the interface board 500 adopts a quick-release design, supporting plug-and-play functionality.

[0062] In the above embodiments, by integrating an interface board 500 inside the rotating frame 200, an electrical connection hub is constructed to realize the docking of external power supply and signal cables with internal treatment / imaging devices. The modular design of the interface board 500 simplifies the cable layout. At the same time, the interface board 500 adopts a quick-release design to support plug-and-play functionality, thereby improving equipment maintenance efficiency.

[0063] See Figures 1 to 5 The medical diagnostic system provided in one embodiment of this application includes the gantry assembly of the radiotherapy equipment in any of the above embodiments, and also includes an imaging device and a treatment device.

[0064] Specifically, the imaging devices include a first imaging device (e.g., CT) and a second imaging device (e.g., DR) with different imaging principles, and the treatment devices include RT. All these devices are integrated and installed on the rotating gantry 200, which allows multiple subsystems to work together. The mounting surfaces of the multiple subsystems are based on the same reference, resulting in high installation accuracy. During operation, all subsystems can be made coplanar, thereby reducing workflow, improving treatment accuracy, and enhancing the patient experience.

[0065] See Figures 1 to 3 In some embodiments, the X-ray tube and detector of the imaging device are mounted on the inner peripheral surface of the rotating frame 200, and the power supply and control unit of the imaging device are mounted on the outer peripheral surface of the rotating frame 200.

[0066] Specifically, the first X-ray tube 610 (e.g., a CT X-ray tube) and the second X-ray tube 710 (e.g., a DR X-ray tube), as well as the first detector 620 (e.g., a CT detector) and the second detector 720 (e.g., a DR detector), are all mounted on the inner peripheral surface of the rotating frame 200, while the electrical unit 910, the cooling module 920, etc., are all mounted on the outer peripheral surface of the rotating frame 200.

[0067] Understandably, the X-ray tube and detector of the imaging device are its core components, and these components are relatively heavy. Positioning them inside the rotating frame 200 protects them from damage. Furthermore, the centrifugal force exerted on these components during rotation is transferred to the rotating frame 200, protecting these structures and improving structural reliability. The power supply unit, control unit, and cooling module 920 are located on the outside of the rotating frame 200. Therefore, the rotating frame 200 can block radiation generated by the core components inside, reducing the requirements for radiation shielding and extending the service life of these components. In addition, the more spacious outer area allows for better heat dissipation of the power supply unit.

[0068] See Figures 1 to 3 In some embodiments, the treatment head 810 (e.g., RT treatment head) and the electronic field imaging device 820 of the treatment device are mounted on the inner peripheral surface of the rotating frame 200, and the power supply and control unit of the treatment device are mounted on the outer peripheral surface of the rotating frame 200.

[0069] The treatment head 810 (e.g., an RT treatment head) and the electron beam imaging device 820 are core components of the therapeutic device. These components are relatively heavy, and placing them inside the rotating gantry 200 protects them from damage. Furthermore, the centrifugal force from these components is transferred to the rotating gantry 200 during rotation, protecting these structures and improving structural reliability. The power supply unit, control unit, and cooling module 920 are located on the outside of the rotating gantry 200. Therefore, the rotating gantry 200 can block radiation generated by the core components inside, reducing the requirements for radiation shielding and extending the service life of these components. In addition, the more spacious outer area allows for better heat dissipation of the power supply unit.

[0070] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A gantry assembly for a radiotherapy device, characterized in that, The gantry assembly of the radiotherapy equipment includes: Fixed frame (100); A rotating gantry (200), rotatably connected to the fixed gantry (100), the rotating gantry (200) being annular and having multiple mounting positions for mounting imaging devices and / or therapeutic devices; and The counterweight assembly includes a first counterweight module (310) and a second counterweight module (320) installed on the rotating frame (200). The first counterweight module (310) and the first line (L) connecting the center of the rotating frame (200) and the second line (K) connecting the second counterweight module (320) and the center of the rotating frame (200) are in a non-perpendicular and non-collinear relationship.

2. The gantry assembly of the radiotherapy equipment according to claim 1, characterized in that, The first counterweight module (310) and / or the second counterweight module (320) include a plurality of detachable counterweights (311).

3. The gantry assembly of the radiotherapy equipment according to claim 2, characterized in that, The plurality of said counterweights (311) are distributed along the axial and / or circumferential directions of said rotating frame (200).

4. The gantry assembly of the radiotherapy equipment according to claim 1, characterized in that, Some of the mounting positions are located on the inner circumferential surface of the rotating frame (200), and some of the mounting positions are located on the outer circumferential surface of the rotating frame (200); Alternatively, at least a portion of the mounting position is located on the inner circumferential surface of the rotating frame (200); Alternatively, at least part of the mounting position is located on the outer peripheral surface of the rotating frame (200).

5. The gantry assembly of the radiotherapy equipment according to claim 1, characterized in that, The rotating frame (200) is open at one end along a first direction, and the other end is rotatably connected to the fixed frame (100), wherein the first direction is the axial direction of the rotating frame (200); The rotating frame (200) has a reinforcing member (400) connected to one end of the rotating frame (200) that is away from the fixed frame (100) along the first direction.

6. The gantry assembly of the radiotherapy equipment according to claim 1, characterized in that, The rotating frame (200) has pipeline holes (210) on its circumferential surface.

7. The gantry assembly of the radiotherapy equipment according to claim 6, characterized in that, The inner side of the rotating frame (200) is provided with an interface board (500) for electrical connection with external cables and internal components.

8. A medical diagnostic system, characterized in that, The medical diagnostic system includes the gantry assembly of the radiotherapy device according to any one of claims 1 to 7, and further includes the imaging device and the treatment device.

9. The medical diagnostic system according to claim 8, characterized in that, The X-ray tube and detector of the imaging device are mounted on the inner circumferential surface of the rotating frame (200), and the electrical part (910) of the imaging device is mounted on the outer circumferential surface of the rotating frame (200).

10. The medical diagnostic system according to claim 8, characterized in that, The treatment head (810) and electronic field imaging device (820) of the treatment device are mounted on the inner peripheral surface of the rotating frame (200), and the electrical part (910) of the treatment device is mounted on the outer peripheral surface of the rotating frame (200).

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