Radiotherapy system
By using a shared bed system and a multi-axis moving support device, the problem of changing the position of the target subject between imaging and radiotherapy equipment was solved, achieving precise irradiation of high-energy rays and improving treatment effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-03-27
AI Technical Summary
In the process of radiotherapy for tumors, the patient's position is prone to change during the transfer between imaging and radiotherapy equipment, which can lead to deviations in the area irradiated by high-energy rays and affect the treatment effect.
A shared bed system is adopted, which realizes the automatic transfer of the target object between the imaging equipment and the radiotherapy equipment through the bed board drive device. Combined with the imaging support device and the radiotherapy support device, it moves along the X, Y and Z axes to ensure the stable positioning of the target object and improve the irradiation accuracy of high-energy rays.
It reduces the risk of changes in the target's position, improves the accuracy of high-energy radiation and the effectiveness of radiotherapy, simplifies the treatment process, and increases the degree of automation.
Smart Images
Figure CN224039808U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical equipment, in particular to a radiotherapy system. BACKGROUND
[0002] Radiotherapy is a tumor treatment method, which mainly uses high-energy rays to kill or control the growth of cancer cells to achieve the treatment of tumors.
[0003] At present, in the radiotherapy process of tumors, multiple radiotherapy treatments are usually required. Before the first radiotherapy treatment, an imaging device is used to image the target object to be treated to obtain information such as the position, size and shape of the tumor, and a treatment plan is formulated according to the information obtained by the imaging device; and the radiotherapy device is controlled to perform radiotherapy on the tumor based on the treatment plan. In the subsequent treatment process, the imaging device is used again to image the target object to be treated to obtain information such as the position, size and shape of the tumor, and the information obtained by the imaging device is compared with the information obtained by the imaging device in the previous radiotherapy process, and the treatment plan is corrected according to the comparison result, and the radiotherapy device is controlled to perform radiotherapy on the tumor based on the corrected treatment plan. However, the body position of the target object to be treated is easy to change during the transfer between the imaging device and the radiotherapy device, thereby causing deviation of the area irradiated by the high-energy rays, and further affecting the treatment effect. CONTENT OF THE UTILITY MODEL
[0004] The purpose of the present application is to provide a radiotherapy system, which aims to solve the problem that in the radiotherapy process of tumors, the body position of the target object is easy to change, thereby causing deviation of the area irradiated by the high-energy rays, and further affecting the treatment effect.
[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:
[0006] The present application provides a radiotherapy system, comprising: a radiotherapy device, the radiotherapy device comprising a radiotherapy host and a radiotherapy support device; wherein the radiotherapy host has a radiotherapy area, and is used to deliver a radiotherapy radiation beam to the radiotherapy area; an imaging device, the imaging device being arranged on one side of the radiotherapy device, the imaging device comprising an imaging host and an imaging support device; wherein the imaging host has an imaging area, and is used to deliver an imaging radiation beam to the imaging area; a shared bed, the shared bed comprising a shared bed plate and a bed plate driving device, the bed plate driving device being connected with the shared bed plate; wherein the shared bed plate is used to support a target object to be treated, the bed plate driving device is arranged on at least one of the radiotherapy support device and the imaging support device, and the bed plate driving device is used to drive the shared bed plate to move along a straight line between the imaging area and the radiotherapy area.
[0007] In the present application, the bed plate driving device in the shared bed can drive the shared bed plate to move between the imaging area and the radiotherapy area, so as to realize the automatic transfer of the target object to be radiated between the imaging device and the radiotherapy device. In this way, during the transfer of the target object to be radiated between the imaging device and the radiotherapy device, the risk of change of the body position of the target object can be reduced, so as to improve the irradiation accuracy of high-energy rays, and further improve the treatment effect.
[0008] In some embodiments, the radiotherapy support device is capable of driving the shared bed to move along at least one of the X-axis direction, the Y-axis direction and the Z-axis direction; and / or, the imaging support device is capable of driving the shared bed to move along at least one of the X-axis direction, the Y-axis direction and the Z-axis direction; wherein the X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other, the Y-axis direction is parallel to the straight line direction, and the Z-axis direction is parallel to the vertical direction.
[0009] In some embodiments, along the straight line direction, the imaging support device is arranged on the side of the imaging main machine away from the radiotherapy device; the bed plate driving device is used to drive the shared bed plate to move along the straight line direction between the first position and the radiotherapy area; or, at least one of the radiotherapy support device and the imaging support device cooperates with the bed plate driving device to drive the shared bed plate to move along the straight line direction between the first position and the radiotherapy area; wherein, when the shared bed plate is in the first position, the shared bed plate is located on the side of the imaging main machine close to the imaging support device, for the target object to go up and down the shared bed plate.
[0010] In some embodiments, the radiotherapy main machine and the imaging device are configured to be arranged in a device room, and the radiotherapy support device is configured to be arranged in a treatment room; wherein the device room communicates with the treatment room through an avoiding opening, and the avoiding opening is used for the shared bed plate to pass through.
[0011] In some embodiments, the imaging support device is arranged on a side of the imaging mainframe away from the radiotherapy device along the straight direction, and the radiotherapy support device is arranged between the imaging mainframe and the radiotherapy mainframe; the bed plate driving device is configured to drive the common bed plate to move between the first position and the second position along the straight direction; or at least one of the radiotherapy support device and the imaging support device cooperates with the bed plate driving device to drive the common bed plate to move between the first position and the second position along the straight direction; when the common bed plate is in the first position, the common bed plate is located on a side of the imaging mainframe close to the imaging support device; when the common bed plate is in the second position, the common bed plate is located on a side of the radiotherapy mainframe away from the radiotherapy support device; wherein when the common bed plate is in the first position, the common bed plate is used to support the target object; when the common bed plate is in the second position or between the imaging mainframe and the radiotherapy mainframe, the common bed plate is used to support the target object; or when the common bed plate is in the first position, the common bed plate is used to support the target object; when the common bed plate is in the second position or between the imaging mainframe and the radiotherapy mainframe, the common bed plate is used to support the target object.
[0012] In some embodiments, the radiotherapy system further comprises a guide support device, the guide support device, the imaging support device, and the radiotherapy support device are connected to form a ring-shaped guide rail, and the common bed is capable of moving along the ring-shaped guide rail.
[0013] In some embodiments, the radiotherapy system comprises a plurality of common beds, and the plurality of common beds are arranged in sequence along an extension direction of the ring-shaped guide rail.
[0014] In some embodiments, the radiotherapy system further comprises an electromagnetic shielding structure arranged between the imaging mainframe and the radiotherapy mainframe, and configured to block transmission of electromagnetic waves between the imaging mainframe and the radiotherapy mainframe.
[0015] In some embodiments, the radiotherapy device is capable of moving between a first working position and a first avoiding position; wherein when the radiotherapy device is in the first working position, the bed plate driving device is capable of driving the common bed plate to enter the radiotherapy area along the straight direction; when the radiotherapy device is in the first avoiding position, the radiotherapy device is arranged away from the common bed along the straight direction; and / or the imaging device is capable of moving between a second working position and a second avoiding position; wherein when the imaging device is in the second working position, the bed plate driving device is capable of driving the common bed plate to enter the imaging area along the straight direction; when the imaging device is in the second avoiding position, the imaging device is arranged away from the common bed along the straight direction.
[0016] In some embodiments, the imaging device comprises at least one of an MRI device, a CT device, and a PET device. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.
[0018] Figure 1 A structural schematic diagram of a radiotherapy system provided by an embodiment of the present application;
[0019] Figure 2 A structural schematic diagram of a radiotherapy system provided by an embodiment of the present application;
[0020] Figure 3 A top view of a radiotherapy system provided by an embodiment of the present application;
[0021] Figure 4 A structural schematic diagram of a radiotherapy system provided by an embodiment of the present application;
[0022] Figure 5 A structural schematic diagram of a radiotherapy system provided by an embodiment of the present application;
[0023] Figure 6 A top view of a radiotherapy system provided by an embodiment of the present application.
[0024] Reference signs:
[0025] 100 - radiotherapy system; 1 - imaging device; 11 - imaging host; 12 - imaging support device; 2 - radiotherapy device; 21 - radiotherapy host; 22 - radiotherapy support device; 3 - shared bed; 31 - shared bed plate; 32 - bed plate driving device; 4 - guide support device. DETAILED DESCRIPTION
[0026] The technical solutions of the embodiments of the present application will be described clearly and completely in the following description of the embodiments of the present application in combination with the drawings. Obviously, the described embodiments are only some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0027] It should be noted that in actual application, due to the limitation of equipment precision or installation error, absolute parallelism or perpendicularity effect is difficult to achieve. In the present application, the description of "perpendicular", "parallel" or "same direction" is not an absolute limiting condition, but indicates that the vertical or parallel structure can be achieved within the preset error range, and the corresponding preset effect is achieved, so that the technical effect of the limited feature can be maximized, and the corresponding technical solution is easy to implement and has high feasibility. For example, "perpendicular" includes absolute perpendicular and approximate perpendicular, and the acceptable deviation range of approximate perpendicular can be, for example, within 5°. "Parallel" includes absolute parallel and approximate parallel, and the acceptable deviation range of approximate parallel can be, for example, within 5°. "Same direction" includes absolute same direction and approximate same direction, and the acceptable deviation range of approximate same direction can be, for example, within 5°.
[0028] In the description of the embodiments of the present application, "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0029] In the description of the embodiments of the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting", "communicating" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected. It can be directly connected, or indirectly connected through an intermediate medium, or the communication between the two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0030] In the description of the embodiments of the present application, the terms "including", "containing" or any other variant thereof are intended to cover non-exclusive containing, so that the process, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, article or device. Without more limitations, the element defined by the sentence "including a…" does not exclude the existence of other identical elements in the process, article or device including the element.
[0031] In the description of the embodiments of the present application, the words "exemplary" and "for example" are used to mean serving as an example, instance, or illustration, at 99 least with respect to the particular aspect to which these words pertain. The embodiments of the present application are not limited to the embodiments of the present application described herein, but rather the scope of the embodiments of the present application is to be accorded the broadest scope of the principles and novel aspects described herein.
[0032] Radiation therapy is a method of treating cancer, which mainly uses high-energy rays to kill or control the growth of cancer cells to achieve the treatment of tumors. In a complete treatment cycle, affected by factors such as setup errors, human respiration, and changes in shape, size, and location of the tumor itself, it is difficult to ensure that the rays accurately irradiate the tumor, which will cause the insufficient irradiation of the tumor tissue by the radiation beam, leading to recurrence, and the normal tissue around the tumor will also be unnecessarily irradiated, resulting in a decrease in the accuracy of radiotherapy and poor efficacy.
[0033] In order to improve the accuracy and efficacy of radiotherapy, image-guided radiation therapy (IGRT) has emerged. IGRT can accurately locate the tumor position by using various imaging technologies (such as CT, MRI, PET, ultrasound, etc.), to ensure that the radiation beam can accurately irradiate the tumor, while minimizing damage to the surrounding normal tissue.
[0034] In the radiotherapy process of the tumor, multiple radiotherapy treatments are usually required. Before the first radiotherapy, an imaging device needs to be used to image the target object to be treated to obtain information such as the position, size, and shape of the tumor, and a treatment plan is formulated according to the information obtained by the imaging device; and the radiotherapy device is controlled to perform radiotherapy on the tumor based on the treatment plan. In the subsequent treatment process, the imaging device needs to be used again to image the target object to be treated to obtain information such as the position, size, and shape of the tumor, and the information obtained by the imaging device is compared with the information obtained by the imaging device in the previous radiotherapy process, and the treatment plan is corrected according to the comparison result, and the radiotherapy device is controlled to perform radiotherapy on the tumor based on the corrected treatment plan.
[0035] In the related art, in order to reduce the space occupied by the imaging device and the radiotherapy device, the imaging device and the radiotherapy device are usually integrated into an integrated device. However, there is a great mutual interference between the imaging device and the radiotherapy device in the integrated device, resulting in poor imaging quality and poor radiotherapy effect. Separating the imaging device and the radiotherapy device can eliminate or weaken the mutual interference between the imaging device and the radiotherapy device, thereby improving the imaging quality and the radiotherapy effect. However, during the transfer of the target object to be treated between the imaging device and the radiotherapy device, the body position of the target object is easy to change, thereby causing the irradiation area of the high-energy rays to deviate, and further affecting the treatment effect.
[0036] Based on this, the embodiment of the present application provides a radiotherapy system for solving the problem that the body position of the target object is easy to change in the related art, thereby causing the irradiation area of the high-energy rays to deviate, and further affecting the treatment effect.
[0037] In some embodiments, referring to Figure 1 The radiotherapy system 100 includes an imaging device 1, which is used to image the target object to be treated to obtain information such as the position, size, shape of the tumor, and the relationship between the tumor and the surrounding normal tissue. Based on this information, a treatment plan can be developed for the target object to perform radiotherapy on the target object. It should be noted that the target object can be a patient or a phantom simulating a patient.
[0038] The imaging device 1 can include at least one of an MRI (Magnetic Resonance Imaging) device, a CT (Computed Tomography) device, a PET (Positron Emission Tomography) device, or other types of imaging devices, or a hybrid device of at least two of them, as long as it can image the target object.
[0039] It should be noted that the MRI device is a medical device that uses a strong magnetic field and radio frequency waves to generate detailed images of internal structures of the human body; the CT device is a medical device that uses X-rays to take cross-sectional images of the body from multiple angles; and the PET device is a medical device that generates images by imaging the distribution of radioactive tracers in the body.
[0040] It can be understood that the number of imaging devices 1 can be one or more, which can be selected according to actual conditions, and the present application does not make specific limitation. When the number of imaging devices 1 is one, the imaging device 1 can be any one of the MRI device, the CT device and the PET device; when the number of imaging devices 1 is more than one, the plurality of imaging devices 1 can be at least two of the MRI device, the CT device and the PET device, and the plurality of imaging devices 1 can be arranged in a straight line.
[0041] For example, as shown in Figure 1 The imaging device 1 includes an imaging host 11 and an imaging support device 12. The imaging host 11 has an imaging area, and the imaging host 11 can deliver an imaging radiation beam to the imaging area to image a target object in the imaging area. The imaging support device 12 can support the target object to receive imaging in the imaging area.
[0042] Referring to Figure 1 The radiotherapy system 100 further includes a radiotherapy device 2, which can perform radiotherapy on the target object based on a treatment plan. For example, the radiotherapy device 2 is arranged on one side of the imaging device 1, for example, the radiotherapy device 2 can be arranged face to face, back to back or in the same direction with the imaging device 1.
[0043] The radiotherapy device 2 can include at least one of an accelerator, a gamma knife, a proton radiotherapy device, a neutron radiotherapy device, an electron radiotherapy device and a heavy ion radiotherapy device, or a mixed device of at least two of them.
[0044] It should be noted that the accelerator mainly treats tumors by accelerating electrons or generating high-energy X-rays (photons), and the gamma knife mainly treats tumors by gamma rays generated by a fixed cobalt-60 source.
[0045] It can be understood that the number of radiotherapy devices 2 can be one or more, which can be selected according to actual conditions, and the present application does not make specific limitation. When the number of radiotherapy devices 2 is one, the radiotherapy device 2 can be any one of the accelerator, the gamma knife, the proton radiotherapy device, the neutron radiotherapy device, the electron radiotherapy device and the heavy ion radiotherapy device or the mixed device of at least two of them; when the number of radiotherapy devices 2 is more than one, the plurality of radiotherapy devices 2 can be at least two of the accelerator, the gamma knife, the proton radiotherapy device, the neutron radiotherapy device, the electron radiotherapy device and the heavy ion radiotherapy device, and the plurality of radiotherapy devices 2 and the imaging device 1 can be arranged in a straight line.
[0046] For example, as shown in Figure 1As shown, the radiotherapy device 2 comprises a radiotherapy host 21 and a radiotherapy support device 22, the radiotherapy host 21 has a radiotherapy area, the radiotherapy host 21 can deliver a radiotherapy radiation beam to the radiotherapy area to perform radiotherapy on a target object in the radiotherapy area; the radiotherapy support device 22 can support the target object to receive radiotherapy in the radiotherapy area.
[0047] On this basis, the imaging host 11, the imaging support device 12, the radiotherapy host 21 and the radiotherapy support device 22 can be arranged in a straight line direction. For example, the imaging support device 12 is arranged on the side of the imaging host 11 away from the radiotherapy host 21, and the radiotherapy support device 22 is arranged between the imaging host 11 and the radiotherapy host 21. For another example, the imaging support device 12 is arranged on the side of the imaging host 11 away from the radiotherapy host 21, and the radiotherapy support device 22 is arranged on the side of the radiotherapy host 21 away from the imaging host 11. For another example, the imaging support device 12 is arranged between the imaging host 11 and the radiotherapy host 21, and the radiotherapy support device 22 is arranged on the side of the radiotherapy host 21 away from the imaging host 11.
[0048] Referring to Figure 1 , the radiotherapy system 100 further comprises a shared bed 3, the shared bed 3 is arranged on at least one of the radiotherapy support device 22 and the imaging support device 12, and the shared bed 3 is used to automatically transfer the target object between the imaging device 1 and the radiotherapy device 2 during radiotherapy, so that the radiotherapy system 100 realizes full-automatic operation after the target object completes positioning. In this way, manual intervention can be reduced, thereby improving treatment accuracy.
[0049] In addition, through the shared bed 3, the imaging device 1 and the radiotherapy device 2 can be deeply integrated, so that the imaging device 1 and the radiotherapy device 2 share a coordinate system, that is, the imaging device 1 and the radiotherapy device 2 can image and perform radiotherapy on the target object based on the same coordinate system. In this way, the complexity of radiotherapy control can be simplified.
[0050] Some implementation modes of the shared bed will be exemplarily described below with reference to the accompanying drawings.
[0051] In some embodiments, referring to Figure 2 , the shared bed 3 comprises a shared bed plate 31 and a bed plate driving device 32, the bed plate driving device 32 is connected with the shared bed plate 31, and the bed plate driving device 32 is arranged on at least one of the radiotherapy support device 22 and the imaging support device 12, and is used to drive the shared bed plate 31 to move in a straight line direction between the imaging area and the radiotherapy area. Wherein, the shared bed plate 31 is used to support the target object to be radiated.
[0052] In this way, during the driving of the bed plate driving device 32 to drive the common bed plate 31 to move between the imaging area and the radiotherapy area, the target object on the common bed plate 31 can be automatically transferred between the imaging device 1 and the radiotherapy device 2. In this way, the risk of the body position of the target object changing can be reduced, thereby improving the irradiation accuracy of the high-energy rays, and further improving the radiotherapy effect.
[0053] It should be noted that the structure and type of the bed plate driving device 32 are not limited in the present application, as long as the common bed plate 31 can be driven to move in a straight line between the imaging area and the radiotherapy area.
[0054] Some implementation manners of the bed plate driving device 32 will be exemplarily described below.
[0055] In some embodiments, the bed plate driving device 32 includes a driving motor and a transmission assembly, an output shaft of the driving motor is connected with the common bed plate 31 through the transmission assembly, and the driving motor can drive the transmission assembly to move, thereby driving the common bed plate 31 to move in a straight line between the imaging area and the radiotherapy area.
[0056] The transmission assembly can be a gear and rack, a lead screw transmission, a chain transmission, a synchronous belt transmission, a steel belt transmission, etc., which can be selected according to actual conditions, and the present application does not make a specific limitation.
[0057] In other embodiments, the bed plate driving device 32 can be a linear motor, an output shaft of the linear motor is connected with the common bed plate 31, and is used to drive the common bed plate 31 to move in a straight line between the imaging area and the radiotherapy area.
[0058] For the convenience of description, some embodiments of the present application will be exemplarily described below by taking the bed plate driving device 32 for driving the common bed plate 31 to move in the Y-axis direction between the imaging area and the radiotherapy area as an example, wherein the Y-axis direction is a straight line direction, for example, the Y-axis direction is the length direction of the common bed plate 31.
[0059] In order to accurately irradiate the imaging radiation beam on the tumor to improve the imaging quality, referring to Figure 2 and Figure 3 The imaging support device 12 in the embodiments of the present application can be configured to drive the common bed 3 to move in at least one of the X-axis direction, the Y-axis direction and the Z-axis direction. The X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other, and the Z-axis direction is parallel to the vertical direction (the direction of gravity).
[0060] Exemplarily, the imaging support device 12 is capable of driving the common bed 3 to move along the X-axis direction, the Y-axis direction and the Z-axis direction. That is, the imaging support device 12 is capable of not only driving the common bed 3 to move along the X-axis direction, but also driving the common bed 3 to move along the Y-axis direction, and driving the common bed 3 to move along the Z-axis direction.
[0061] In this way, by driving the common bed plate 31 to move along the Y-axis direction by the bed plate driving device 32, and driving the common bed 3 to move along the X-axis direction, the Y-axis direction and the Z-axis direction by the imaging support device 12, the target object on the common bed plate 31 is driven to move along the X-axis direction, the Y-axis direction and the Z-axis direction, so as to realize the adjustment of the position of the target object in the imaging region. In this way, the irradiation precision of the imaging radiation beam is improved, so that the imaging radiation beam is accurately irradiated to the tumor. In this way, the imaging quality of the imaging device 1 is improved.
[0062] In addition, by driving the common bed 3 to move along the Z-axis direction by the imaging support device 12, the adjustment of the height of the common bed 3 is realized, so as to facilitate the target object to get on and off the bed.
[0063] It can be understood that the imaging support device 12 is capable of driving the common bed 3 to move along the X-axis direction, the Y-axis direction and the Z-axis direction in various ways, which can be selected according to actual conditions, and the present application does not make specific limitations.
[0064] Some implementation manners of the imaging support device 12 will be exemplarily described below.
[0065] In some embodiments, the imaging support device 12 comprises an X-axis moving motor and an X-axis transmission mechanism, the output shaft of the X-axis moving motor is connected with the common bed 3 through the X-axis transmission mechanism, and the X-axis moving motor is capable of driving the X-axis transmission mechanism to move, thereby driving the common bed 3 to move along the X-axis direction.
[0066] The X-axis transmission mechanism can be a ball screw, a gear and rack, a chain and sprocket, a worm and gear, a belt, etc., which can be selected according to actual conditions, and the present application does not make specific limitations.
[0067] The imaging support device 12 can further comprise a Y-axis moving motor and a Y-axis transmission mechanism, the output shaft of the Y-axis moving motor is connected with the common bed 3 through the Y-axis transmission mechanism, and the Y-axis moving motor is capable of driving the Y-axis transmission mechanism to move, thereby driving the common bed 3 to move along the Y-axis direction.
[0068] The Y-axis transmission mechanism can be a ball screw, a gear and rack, a chain and sprocket, a worm and gear, a belt, etc., which can be selected according to actual conditions, and the present application does not make specific limitations.
[0069] The imaging support device 12 can further include a Z-axis moving motor and a Z-axis transmission mechanism, an output shaft of the Z-axis moving motor being connected with the common bed 3 through the Z-axis transmission mechanism, the Z-axis moving motor being capable of driving the Z-axis transmission mechanism to move, thereby driving the common bed 3 to move along the Z-axis direction.
[0070] The Z-axis transmission mechanism can be a ball screw, a gear and rack, a chain and sprocket, a worm and gear, a belt, etc., which can be selected according to actual conditions, and the application does not make specific limitations.
[0071] In other embodiments, the imaging support device 12 is a mechanical arm, which is capable of driving the common bed 3 to move along at least one of the X-axis direction, the Y-axis direction and the Z-axis direction. For example, the mechanical arm is capable of driving the common bed 3 to move along the X-axis direction, the Y-axis direction and the Z-axis direction. The specific structure of the mechanical arm is not limited, which can be selected according to actual conditions.
[0072] In order to accurately irradiate the radiotherapy radiation beam on the tumor, to improve the radiotherapy precision, thereby improving the treatment effect, the radiotherapy support device 22 in the embodiments of the application can also be configured to drive the common bed 3 to move along at least one of the X-axis direction, the Y-axis direction and the Z-axis direction.
[0073] For example, the radiotherapy support device 22 is capable of driving the common bed 3 to move along the X-axis direction, the Y-axis direction and the Z-axis direction. That is, the radiotherapy support device 22 is capable of not only driving the common bed 3 to move along the X-axis direction, but also driving the common bed 3 to move along the Y-axis direction, and driving the common bed 3 to move along the Z-axis direction.
[0074] In this way, the common bed plate 31 can be driven to move along the Y-axis direction by the bed plate driving device 32, and the common bed 3 can be driven to move along the X-axis direction, the Y-axis direction and the Z-axis direction by the radiotherapy support device 22, so as to drive the target object on the common bed plate 31 to move along the X-axis direction, the Y-axis direction and the Z-axis direction, thereby realizing the adjustment of the position of the target object in the radiotherapy area. In this way, it is helpful to improve the irradiation precision of the radiotherapy radiation beam, so as to accurately irradiate the radiotherapy radiation beam on the tumor. In this way, the radiotherapy precision of the radiotherapy device 2 can be improved, thereby improving the treatment effect.
[0075] In addition, the radiotherapy support device 22 drives the common bed 3 to move along the Z-axis direction, which can realize the adjustment of the height of the common bed 3, so as to facilitate the target object to get on and off the bed.
[0076] It should be noted that in the embodiments of the present application, the radiotherapy support device 22 can adopt the same setting mode as the imaging support device 12 described above to realize the movement of the common bed 3 along the X-axis direction, the Y-axis direction and the Z-axis direction; that is, the specific structure of the radiotherapy support device 22 can be designed with reference to the specific structure of the imaging support device 12, which will not be described herein.
[0077] In order to improve the automation level of the radiotherapy system 100, referring to Figure 4 The radiotherapy system 100 in the embodiments of the present application can further include a guide support device 4, the guide support device 4, the imaging support device 12 and the radiotherapy support device 22 are connected to form a ring-shaped guide rail, and the common bed 3 can move along the ring-shaped guide rail. That is, the common bed 3 can move along the ring-shaped guide rail in a circulating manner.
[0078] The guide support device 4 can drive the common bed 3 to move along the ring-shaped guide rail in a circulating manner; or the guide support device 4 can cooperate with at least one of the imaging support device 12 and the radiotherapy support device 22 to drive the common bed 3 to move along the ring-shaped guide rail in a circulating manner. In this way, the common bed 3 can realize automatic movement along the ring-shaped guide rail.
[0079] In this way, in the radiotherapy process, after the target object is fixed on the common bed 3, the common bed 3 can automatically move along the ring-shaped guide rail with the target object, so that the target object can automatically transfer between the imaging area and the radiotherapy area, thereby completing the complete radiotherapy process. In this way, the automation level of the radiotherapy system 100 can be improved, and the risk of change of the body position of the target object can be reduced, thereby improving the irradiation precision of the radiation beam, and further improving the treatment precision and improving the treatment effect.
[0080] On this basis, in order to improve the utilization rate of the radiotherapy system 100 and shorten the waiting time of the target object, the number of common beds 3 can be set to be multiple. In this way, at the same time, different common beds 3 can carry different target objects to perform different diagnosis and treatment processes at different positions.
[0081] For example, the number of common beds 3 is 3, at the same time, one common bed 3 can carry a target object to perform imaging at the imaging device 1, another common bed 3 can carry a target object to perform radiotherapy at the radiotherapy device 2, and the last common bed 3 can carry a target object to perform fixed positioning or release fixed positioning at the upper and lower beds. In this way, the time for fixing the positioning of the target object, the time for releasing the fixed positioning and the time for radiotherapy can be carried out in parallel, the treatment rhythm of the target object can be reasonably planned to realize the shortest comprehensive time, thereby improving the utilization rate of the radiotherapy system 100.
[0082] In order to reduce the mutual interference between the imaging host 11 and the radiotherapy host 21, and improve the effect of radiotherapy, the radiotherapy system 100 in the embodiment of the present application can further comprise an electromagnetic shielding structure, which is arranged between the imaging host 11 and the radiotherapy host 21, and is used to block the transmission of electromagnetic waves between the imaging host 11 and the radiotherapy host 21.
[0083] In this way, the electromagnetic shielding structure can reduce the transmission of electromagnetic waves generated by the radiotherapy host 21 to the imaging host 11, thereby reducing the influence of the radiotherapy host 21 on the performance of the imaging host 11, and further improving the imaging quality of the imaging host 11. At the same time, the electromagnetic shielding structure can also reduce the transmission of electromagnetic waves generated by the imaging host 11 to the radiotherapy host 21, thereby reducing the influence of the imaging host 11 on the performance of the radiotherapy host 21, and further improving the radiotherapy precision of the radiotherapy host 21 and the effect of radiotherapy.
[0084] Some implementation manners of the electromagnetic shielding structure will be exemplarily described below.
[0085] In some embodiments, the electromagnetic shielding structure has a through hole for allowing the common bed plate 31 to pass through. That is, the common bed plate 31 can pass through the through hole on the electromagnetic shielding structure to move between the imaging host 11 and the radiotherapy host 21.
[0086] In other embodiments, the electromagnetic shielding structure can move between a shielding position and an avoiding position. When the electromagnetic shielding structure is in the shielding position, the electromagnetic shielding structure can block the transmission of electromagnetic waves between the imaging host 11 and the radiotherapy host 21. When the electromagnetic shielding structure is in the avoiding position, the common bed plate 31 can move along the Y-axis direction between the imaging area and the radiotherapy area.
[0087] In other embodiments, the electromagnetic shielding structure can also be arranged in the form of a rolling shutter door. When the common bed plate 31 needs to move between the imaging host 11 and the radiotherapy host 21, the electromagnetic shielding structure can be retracted to allow the common bed plate 31 to pass through. After the common bed plate 31 passes through, the electromagnetic shielding structure can be lowered to block the transmission of electromagnetic waves between the imaging host 11 and the radiotherapy host 21.
[0088] In order to reduce the interference of the radiotherapy device 2 on the imaging device 1, the radiotherapy device 2 can also be arranged in a movable form, which is used to move the radiotherapy device 2 to a position offset from the imaging device 1 when the imaging device 1 is imaging.
[0089] For example, the radiotherapy device 2 is movable between a first working position and a first avoiding position; when the radiotherapy device 2 is in the first working position, the bed plate driving device 32 can drive the common bed plate 31 to enter the radiotherapy area along the Y-axis direction to transfer the target object to the radiotherapy area for receiving the radiotherapy treatment; when the radiotherapy device 2 is in the first avoiding position, the radiotherapy device 2 is arranged to be staggered with the common bed 3 along the Y-axis direction, and the radiotherapy device 2 is arranged to be staggered with the imaging device 1.
[0090] In this way, when the target object is imaged by the imaging device 1, the radiotherapy device 2 can be moved to the first avoiding position to increase the distance between the radiotherapy device 2 and the imaging device 1, thereby reducing the influence of the radiotherapy device 2 on the performance of the imaging device 1, and further improving the imaging quality of the imaging device 1. When the radiotherapy device 2 is needed to be used to perform the radiotherapy treatment on the target object, the radiotherapy device 2 can be moved to the first working position, and then the common bed plate 31 is driven by the bed plate driving device 32 to enter the radiotherapy area along the Y-axis direction to transfer the target object to the radiotherapy area for receiving the radiotherapy treatment by the radiotherapy device 2.
[0091] Similarly, in order to reduce the interference of the imaging device 1 on the radiotherapy device 2, the imaging device 1 can also be arranged to be movable to move to a position staggered with the radiotherapy device 2 when the radiotherapy device 2 performs the radiotherapy treatment.
[0092] For example, the imaging device 1 is movable between a second working position and a second avoiding position; when the imaging device 1 is in the second working position, the bed plate driving device 32 can drive the common bed plate 31 to enter the imaging area along the Y-axis direction to transfer the target object to the imaging area for receiving the imaging; when the imaging device 1 is in the second avoiding position, the imaging device 1 is arranged to be staggered with the common bed 3 along the Y-axis direction, and the imaging device 1 is arranged to be staggered with the radiotherapy device 2.
[0093] In this way, when the target object is imaged by the imaging device 1, the radiotherapy device 2 can be moved to the first avoiding position to increase the distance between the radiotherapy device 2 and the imaging device 1, thereby reducing the influence of the radiotherapy device 2 on the performance of the imaging device 1, and further improving the imaging quality of the imaging device 1. When the radiotherapy device 2 is needed to be used to perform the radiotherapy treatment on the target object, the radiotherapy device 2 can be moved to the first working position, and then the common bed plate 31 is driven by the bed plate driving device 32 to enter the radiotherapy area along the Y-axis direction to transfer the target object to the radiotherapy area for receiving the radiotherapy treatment by the radiotherapy device 2.
[0094] In order to prevent the technician from being radiated in the radiotherapy process, in the embodiment of the present application, the radiotherapy host 21 and the imaging device 1 can be arranged in the treatment room; wherein the device room is communicated with the treatment room through the avoiding port, and the avoiding port is used for passing the shared bed plate 31.
[0095] In this way, the target object can get on and off the bed outside the treatment room, and the technician can fix and release the fixed position of the target object outside the treatment room, without entering the treatment room. In this way, the technician can be prevented from being radiated from the radiotherapy host 21 and the imaging host 11, so as to protect the personal safety of the technician.
[0096] The position of the target object getting on and off the shared bed is not limited in the present application, and can be selected according to the actual situation.
[0097] The position of the target object getting on and off the shared bed will be exemplarily described below in combination with the drawings.
[0098] In some embodiments, referring to Figure 2 , along the Y-axis direction, the imaging support device 12 is arranged on the side of the imaging host 11 away from the radiotherapy device 2, that is, the imaging host 11 is arranged between the imaging support device 12 and the radiotherapy device 2.
[0099] On this basis, the bed plate driving device 32 is used for driving the shared bed plate 31 to move along the straight line direction between the first position and the radiotherapy area. Alternatively, at least one of the radiotherapy support device 22 and the imaging support device 12 cooperates with the bed plate driving device 32 to drive the shared bed plate 31 to move along the straight line direction between the first position and the radiotherapy area.
[0100] Wherein, when the shared bed plate 31 is in the first position, the shared bed plate 31 is located on the side of the imaging host 11 close to the imaging support device 12, for the target object to get on and off the shared bed plate 31. That is, the target object can get on and off the shared bed 3 at the imaging support device 12.
[0101] In order to facilitate the target object to get on and off the shared bed 3 at the imaging support device 12, as shown in Figure 2 and Figure 5 , the imaging support device 12 can be arranged to be capable of driving the shared bed 3 to move along the Z-axis direction, for realizing the adjustment of the height of the shared bed 3.
[0102] In other embodiments, referring to Figure 6 , along the Y-axis direction, the imaging support device 12 is arranged on the side of the imaging host 11 away from the radiotherapy device 2, and the radiotherapy support device 22 is arranged between the imaging host 11 and the radiotherapy host 21.
[0103] On this basis, the bed plate driving device 32 is configured to drive the common bed plate 31 to move along a linear direction between the first position and the second position. Alternatively, at least one of the radiotherapy support device 22 and the imaging support device 12 cooperates with the bed plate driving device 32 to drive the common bed plate 31 to move along a linear direction between the first position and the second position.
[0104] In the case where the common bed plate 31 is in the first position, the common bed plate 31 is located on the side of the imaging main machine 11 close to the imaging support device 12; in the case where the common bed plate 31 is in the second position, the common bed plate 31 is located on the side of the radiotherapy main machine 21 away from the radiotherapy support device 22.
[0105] In this case, it can be that, in the case where the common bed plate 31 is in the first position, the common bed plate 31 is used to carry the target object; in the case where the common bed 3 is in the second position or between the imaging main machine 11 and the radiotherapy main machine 21, the common bed plate 31 is used to carry the target object. That is, the target object is carried on the common bed 3 at the imaging support device 12 and is carried on the common bed 3 on the side of the radiotherapy support device 22 or the radiotherapy main machine 21 away from the radiotherapy support device 22. It can also be that, in the case where the common bed plate 31 is in the first position, the common bed plate 31 is used to carry the target object; in the case where the common bed 3 is in the second position or between the imaging main machine 11 and the radiotherapy main machine 21, the common bed plate 31 is used to carry the target object. That is, the target object is carried on the common bed 3 at the imaging support device 12 and is carried on the common bed 3 on the side of the radiotherapy support device 22 or the radiotherapy main machine 21 away from the radiotherapy support device 22. The specific selection can be made according to the actual situation, and the present application does not make specific limitations thereto.
[0106] In order to facilitate the target object to carry the common bed 3, referring to Figure 5 The imaging support device 12 can also be configured to drive the common bed 3 to move along the Z-axis direction, and the radiotherapy support device 22 can also be configured to drive the common bed 3 to move along the Z-axis direction, for adjusting the height of the common bed 3.
[0107] In the description of the present specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.
[0108] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which shall be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims
1. A radiotherapy system, characterized by, The application relates to a radiotherapy device, an imaging device and a common bed. The radiotherapy device comprises a radiotherapy host and a radiotherapy support device; the radiotherapy host has a radiotherapy area for delivering a radiotherapy radiation beam to the radiotherapy area; The imaging device is arranged on one side of the radiotherapy device and comprises an imaging host and an imaging support device; the imaging host has an imaging area for delivering an imaging radiation beam to the imaging area; The common bed comprises a common bed plate and a bed plate driving device connected with the common bed plate; the common bed plate is used for supporting a target object to be radiated; the bed plate driving device is arranged on at least one of the radiotherapy support device and the imaging support device and is used for driving the common bed plate to move along a straight line between the imaging area and the radiotherapy area.
2. The radiotherapy system of claim 1, wherein, The radiotherapy support device can drive the common bed to move along at least one of an X-axis direction, a Y-axis direction and a Z-axis direction; And / or, the imaging support device can drive the common bed to move along at least one of the X-axis direction, the Y-axis direction and the Z-axis direction; The X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other; the Y-axis direction is parallel to the straight line direction; and the Z-axis direction is parallel to a vertical direction.
3. The radiotherapy system of claim 1, wherein, Along the straight line direction, the imaging support device is arranged on a side of the imaging host away from the radiotherapy device; The bed plate driving device is used for driving the common bed plate to move along the straight line direction between a first position and the radiotherapy area; or at least one of the radiotherapy support device and the imaging support device cooperates with the bed plate driving device to drive the common bed plate to move along the straight line direction between the first position and the radiotherapy area; When the common bed plate is in the first position, the common bed plate is located on a side of the imaging host close to the imaging support device, and the target object is arranged on and off the common bed plate.
4. The radiotherapy system of claim 1, wherein, The radiotherapy host and the imaging device are arranged in a device room, and the radiotherapy support device is arranged in a treatment room; The device room communicates with the treatment room through an avoiding opening, and the avoiding opening is used for allowing the common bed plate to pass through.
5. The radiotherapy system of claim 1, wherein, Along the straight line direction, the imaging support device is arranged on a side of the imaging host away from the radiotherapy device, and the radiotherapy support device is arranged between the imaging host and the radiotherapy host; The bed plate driving device is used for driving the common bed plate to move along the straight line direction between a first position and a second position; Or, at least one of the radiotherapy support device and the imaging support device cooperates with the bed plate driving device to drive the common bed plate to move along the straight line direction between the first position and the second position; When the common bed plate is in the first position, the common bed plate is located on a side of the imaging host close to the imaging support device; When the common bed plate is in the second position, the common bed plate is located on a side of the radiotherapy host away from the radiotherapy support device; Wherein, in the case that the shared couch top is in the first position, the shared couch top is driven to be lowered relative to the target object; in the case that the shared couch is in the second position or between the imaging host and the radiotherapy host, the shared couch top is driven to be raised relative to the target object. Or, in the case that the shared couch top is in the first position, the shared couch top is driven to be raised relative to the target object; in the case that the shared couch is in the second position or between the imaging host and the radiotherapy host, the shared couch top is driven to be lowered relative to the target object.
6. The radiotherapy system of claim 1, wherein, The radiotherapy system further comprises: A guide support device, the guide support device, the imaging support device and the radiotherapy support device are connected to form a ring-shaped guide rail, and the shared couch can move along the ring-shaped guide rail.
7. The radiotherapy system of claim 6, wherein, The radiotherapy system comprises a plurality of shared couches, and the plurality of shared couches are arranged in sequence along the extension direction of the ring-shaped guide rail.
8. The radiotherapy system of claim 1, wherein, The radiotherapy system further comprises: An electromagnetic shielding structure is arranged between the imaging host and the radiotherapy host, and is used to block the transmission of electromagnetic waves between the imaging host and the radiotherapy host.
9. The radiotherapy system of claim 1, wherein, The radiotherapy device can move between a first working position and a first avoiding position; wherein, in the case that the radiotherapy device is in the first working position, the couch top driving device can drive the shared couch top to enter the radiotherapy area along the straight line direction; in the case that the radiotherapy device is in the first avoiding position, the radiotherapy device is arranged staggered with the shared couch along the straight line direction; And / or, the imaging device can move between a second working position and a second avoiding position; wherein, in the case that the imaging device is in the second working position, the couch top driving device can drive the shared couch top to enter the imaging area along the straight line direction; in the case that the imaging device is in the second avoiding position, the imaging device is arranged staggered with the shared couch along the straight line direction.
10. The radiotherapy system of any of claims 1-9, wherein, The imaging device comprises at least one of an MRI device, a CT device and a PET device.