Shared bed and radiotherapy system
By using a shared bed in the radiotherapy system, the target subject can be precisely transferred and positioned between the imaging and radiotherapy equipment, solving the problem of poor treatment results caused by changes in body position and improving the accuracy and effectiveness of radiotherapy.
Patent Information
- Application Number
- CN202423236112.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2034-12-26
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 is used, including a slide rail, a drive unit, and a bed board. The drive unit can slide between the imaging equipment and the radiotherapy equipment, moving the bed board and the target object. It also drives the bed board to rotate so that it faces the imaging or radiotherapy equipment, ensuring the precise positioning of the target object between the two devices.
It reduces the risk of changes in the target's body position and improves the accuracy of high-energy radiation and the therapeutic effect.
Smart Images
Figure CN223914358U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical device technology, and more particularly to a shared bed and radiotherapy system. Background Technology
[0002] Radiation therapy is a treatment method for tumors that primarily uses high-energy rays to kill or control the growth of cancer cells, thereby treating the tumor. The radiation therapy process typically involves multiple sessions. Before the first radiation therapy, imaging equipment is used to image the target tumor to obtain information such as its location, size, and shape. A treatment plan is then developed based on this information, and the radiation therapy equipment is used to deliver the radiation to the tumor. In subsequent treatments, imaging equipment is used again to image the target tumor to obtain information such as its location, size, and shape. This information is compared with that from the previous radiation therapy session, and the treatment plan is revised based on the comparison results. The revised treatment plan is then used to control the radiation therapy equipment to deliver the radiation to the tumor.
[0003] In related technologies, to reduce the space occupied by imaging and radiotherapy equipment, they are often integrated into a single device. However, significant mutual interference exists between the imaging and radiotherapy equipment within this integrated device, resulting in poor image quality and radiotherapy efficacy. Separating the imaging and radiotherapy equipment can eliminate or reduce mutual interference, thereby improving image quality and radiotherapy efficacy. However, during the transfer of the target patient between the imaging and radiotherapy equipment, the patient's position is prone to change, causing deviations in the area irradiated by high-energy rays, which in turn affects the treatment outcome. Utility Model Content
[0004] The purpose of this application is to provide a shared bed and radiotherapy system, which aims to solve the problem that the position of the target patient is easily changed during the radiotherapy process for tumors, resulting in deviation of the area irradiated by high-energy rays, and thus affecting the treatment effect.
[0005] To achieve the above objectives, this application adopts the following technical solution:
[0006] In a first aspect, this application provides a shared bed for use in a radiotherapy system. The radiotherapy system includes an imaging device and a radiotherapy device arranged opposite to each other. The shared bed includes: a slide rail extending along the arrangement direction of the imaging device and the radiotherapy device; a drive device connected to the slide rail and located between the imaging device and the radiotherapy device; the drive device being capable of sliding along the slide rail between the imaging device and the radiotherapy device; and a bed board connected to the drive device, the bed board being used to support a target object; the drive device being capable of driving the bed board to rotate so that the front end of the bed board faces the imaging device or the radiotherapy device; wherein, when the front end of the bed board faces the imaging device, the drive device is capable of driving the bed board to move to deliver the front end of the bed board into the imaging position of the imaging device; and when the front end of the bed board faces the radiotherapy device, the drive device is capable of driving the bed board to move to deliver the front end of the bed board into the treatment position of the radiotherapy device.
[0007] Applying the shared bed of this application to a radiotherapy system, the drive device can move along a slide rail between the imaging device and the radiotherapy device, thereby transferring the bed board and the target object on the bed board between the two devices. Furthermore, the drive device can drive the bed board to rotate so that its front end faces the imaging device or radiotherapy device, thus moving the bed board to deliver the bed board and the target object onto the imaging position of the imaging device for imaging, or to deliver the bed board and the target object onto the radiotherapy position of the radiotherapy device for treatment. In this way, the risk of changes in the target object's position can be reduced during the transfer between the imaging and radiotherapy devices, thereby improving the irradiation accuracy of high-energy rays and ultimately enhancing the treatment effect.
[0008] In some embodiments, the slide rail is made of a non-ferromagnetic material; and / or, the bed board is made of a non-ferromagnetic material.
[0009] In some embodiments, the driving device can drive the bed board to move along the X-axis, Y-axis and Z-axis directions; wherein the X-axis, Y-axis and Z-axis directions are perpendicular to each other, the front end of the bed board is one end of the bed board in the Y-axis direction, and the Z-axis direction is parallel to the vertical direction.
[0010] In some embodiments, the shared bed further includes: a drive motor connected to the slide rail; a transmission assembly, wherein the output shaft of the drive motor is connected to the drive device via the transmission assembly; the drive motor is used to drive the transmission assembly to move, thereby causing the drive device to slide along the slide rail.
[0011] In some embodiments, the transmission component is a ball screw, which includes a screw and a nut that are screwed together. The screw is connected to the output shaft of a drive motor, and the nut is connected to a drive device. The drive motor is used to drive the screw to rotate, thereby causing the nut to move along the axial direction of the screw.
[0012] In some embodiments, the transmission components are made of non-ferromagnetic materials.
[0013] In some embodiments, the transmission components are made of stainless steel.
[0014] Secondly, this application provides a radiotherapy system, comprising: a shared bed as described in any of the above embodiments; a radiotherapy device having a radiotherapy position; an imaging device disposed opposite to the radiotherapy device; and the imaging device having an imaging position.
[0015] In some embodiments, the imaging device includes at least one of an MRI device, a CT device, and a PET device.
[0016] The technical effects of any of the embodiments in the second aspect above can be found in the technical effects of the corresponding embodiments in the first aspect, and will not be repeated here. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is one of the structural schematic diagrams of a radiotherapy system provided in an embodiment of this application;
[0019] Figure 2 This is a second schematic diagram of a radiotherapy system provided in an embodiment of this application;
[0020] Figure 3 A top view of a radiotherapy system provided in an embodiment of this application;
[0021] Figure 4 This is the third schematic diagram of a radiotherapy system provided in the embodiments of this application;
[0022] Figure 5 This is one of the schematic diagrams illustrating the operation steps of a shared bed provided in an embodiment of this application;
[0023] Figure 6 This is a second schematic diagram illustrating the operation steps of a shared bed, as provided in an embodiment of this application.
[0024] Figure label:
[0025] 100-Radiotherapy system; 1-Imaging equipment; 2-Radiotherapy equipment; 3-Shared bed; 31-Slide rail; 32-Drive device; 33-Bed board. Detailed Implementation
[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0027] It should be noted that in practical applications, due to limitations in equipment precision or installation errors, achieving absolute parallelism or perpendicularity is difficult. The descriptions of "perpendicular," "parallel," or "in the same direction" in this application are not absolute limitations, but rather indicate that a vertical or parallel structural arrangement can be achieved within a preset error range, achieving the corresponding preset effect. This maximizes the technical effect of the defined features and makes the corresponding technical solution easy to implement, possessing high feasibility. For example, "perpendicular" includes absolute perpendicularity and near-perpendicularity, where the acceptable deviation range for near-perpendicularity can be, for example, within 5°. "Parallel" includes absolute parallelism and near-parallelism, where the acceptable deviation range for near-parallelism can also be, for example, within 5°. "In the same direction" includes absolute same direction and near-same direction, where the acceptable deviation range for near-same direction can also be, for example, within 5°.
[0028] In the description of the embodiments of this application, "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.
[0029] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "communication" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a communication between the internal components of two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0030] In the description of embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.
[0031] In the description of the embodiments in this application, the words "exemplary" or "for example" are used to indicate that they are examples, illustrations, or descriptions. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design options. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.
[0032] Radiation therapy is a treatment method for tumors that primarily uses high-energy rays to kill or control the growth of cancer cells to treat the tumor. During a complete treatment cycle, factors such as positioning errors, human respiration, and changes in the shape, size, and location of the tumor itself can make it difficult to ensure that the radiation beam accurately irradiates the tumor. This can lead to insufficient irradiation of the tumor tissue, resulting in recurrence, while surrounding normal tissues may also receive unnecessary irradiation, leading to reduced accuracy and poor efficacy of radiation therapy.
[0033] To improve the accuracy and efficacy of radiotherapy, image-guided radiation therapy (IGRT) has emerged. IGRT uses various imaging techniques (such as CT, MRI, PET, and ultrasound) to precisely locate the tumor, ensuring that the radiation beam accurately targets the tumor while minimizing damage to surrounding healthy tissues.
[0034] In the radiotherapy process for tumors, multiple radiotherapy sessions are typically required. Before the first radiotherapy session, imaging equipment is used to image the target tumor to obtain information such as its location, size, and shape. A treatment plan is then developed based on this information, and the radiotherapy equipment is used to deliver the radiation to the tumor. In subsequent treatments, imaging equipment is used again to image the target tumor to obtain information such as its location, size, and shape. This information is compared with that obtained during the previous radiotherapy session, and the treatment plan is revised based on the comparison results. The revised treatment plan is then used to deliver the final radiotherapy to the tumor.
[0035] In related technologies, to reduce the space occupied by imaging and radiotherapy equipment, they are often integrated into a single device. However, significant mutual interference exists between the imaging and radiotherapy equipment within this integrated device, resulting in poor image quality and radiotherapy efficacy. Separating the imaging and radiotherapy equipment can eliminate or reduce mutual interference, thereby improving image quality and radiotherapy efficacy. However, during the transfer of the target patient between the imaging and radiotherapy equipment, the patient's position is prone to change, causing deviations in the area irradiated by high-energy rays, which in turn affects the treatment outcome.
[0036] Based on this, the present application provides a shared bed and radiotherapy system to solve the problem in related technologies where the position of the target object is easily changed, resulting in deviation of the area irradiated by high-energy rays, which in turn affects the treatment effect.
[0037] In some embodiments, see Figure 1 The radiotherapy system 100 includes an imaging device 1, which is used to image the target object to be radiotreated to obtain information such as the location, size, shape of the tumor, and its relationship with surrounding normal tissues. Based on this information, a treatment plan can be formulated for the target object to receive radiotherapy. It should be noted that the target object can be a patient or a phantom simulating a patient.
[0038] The imaging device 1 has an imaging position, and the imaging device 1 is able to deliver an imaging radiation beam to the imaging position in order to image the target object located at the imaging position.
[0039] For example, the imaging device 1 can be at least one of MRI (Magnetic Resonance Imaging), CT (Computed Tomography), PET (Positron Emission Tomography) or other types of imaging devices, or a combination of at least two of them, which can image the target object.
[0040] It should be noted that an MRI device is a medical device that uses strong magnetic fields and radio frequency waves to generate detailed images of the internal structure of the human body; a CT device is a medical device that uses X-rays to take cross-sectional images of the body from multiple angles; and a PET device is a medical device that generates images by imaging the distribution of radioactive tracers within the body.
[0041] It is understood that the number of imaging devices 1 can be one or more, and the specific selection can be made according to the actual situation. This application does not make any specific limitation in this regard. When there is only one imaging device 1, the imaging device 1 can be any one of MRI, CT and PET devices; when there are multiple imaging devices 1, the multiple imaging devices 1 can be at least two of MRI, CT and PET devices, and the multiple imaging devices 1 can be arranged sequentially in a straight line.
[0042] See also Figure 1 The radiotherapy system 100 also includes a radiotherapy device 2, which is positioned opposite to the imaging device 1. The radiotherapy device 2 is capable of performing radiotherapy on the target subject based on the treatment plan.
[0043] The radiotherapy device 2 has a radiotherapy position and is capable of delivering a radiotherapy radiation beam to the radiotherapy position to perform radiotherapy on the target object located at the radiotherapy position.
[0044] For example, the radiotherapy device 2 may be at least one of an accelerator, a gamma knife, a proton therapy device, a neutron therapy device, an electron therapy device, and a heavy ion therapy device, or a combination of at least two of them.
[0045] It should be noted that accelerators primarily treat tumors by accelerating electrons or generating high-energy X-rays (photons), while Gamma Knife primarily treats tumors by generating gamma rays from multiple cobalt-60 sources.
[0046] It is understood that the number of radiotherapy devices 2 can be one or more, and the specific selection can be made according to the actual situation. This application does not make any specific limitation in this regard. When there is only one radiotherapy device 2, the radiotherapy device 2 can be any one of an accelerator and a gamma knife or a hybrid device of an accelerator and a gamma knife; when there are multiple radiotherapy devices 2, the multiple radiotherapy devices 2 can be accelerators and gamma knives, and the multiple radiotherapy devices 2 can be arranged sequentially in a straight line.
[0047] See Figure 1 The radiotherapy system 100 also includes a shared bed 3, which is positioned between the imaging device 1 and the radiotherapy device 2. 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 can operate fully automatically after the target object is positioned. This reduces manual intervention and improves treatment accuracy.
[0048] Furthermore, by sharing the bed 3, deep integration of imaging device 1 and radiotherapy device 2 can be achieved, allowing them to share a coordinate system. This means that imaging device 1 and radiotherapy device 2 can perform imaging and radiotherapy on the target object based on the same coordinate system. This simplifies the complexity of radiotherapy control.
[0049] The specific structure of the shared bed 3 will be described below as an example.
[0050] In some embodiments, see Figure 1 The shared bed 3 may include a slide rail 31, a drive device 32, and a bed board 33. The slide rail 31 extends along the arrangement direction of the imaging device 1 and the radiotherapy device 2; the drive device 32 is connected to the slide rail 31 and is located between the imaging device 1 and the radiotherapy device 2; the bed board 33 is connected to the drive device 32 and is used to support the target object.
[0051] The drive device 32 can slide along the slide rail 31 between the imaging device 1 and the radiotherapy device 2, thereby driving the bed board 33 connected to it and the target object on the bed board 33 to move along the slide rail 31 between the imaging device 1 and the radiotherapy device 2.
[0052] Additionally, see Figure 1 and Figure 2 The drive device 32 can also drive the bed board 33 to rotate so that the front end of the bed board 33 faces the imaging device 1 or the radiotherapy device 2. Thus, when the front end of the bed board 33 faces the imaging device 1, the drive device 32 can drive the bed board 33 to move, so that the front end of the bed board 33 is inserted into the imaging position of the imaging device 1, for imaging by directing the imaging radiation beam onto the tumor of the target object; when the front end of the bed board 33 faces the radiotherapy device 2, the drive device 32 can drive the bed board 33 to move, so that the front end of the bed board 33 is inserted into the treatment position of the radiotherapy device 2, for radiotherapy by directing the radiotherapy radiation beam onto the tumor of the target object.
[0053] In this embodiment, the driving device 32 can not only slide along the slide rail 31, but also drive the bed board 33 to rotate, thereby sending the bed board 33 and the target object on the bed board 33 into the imaging position of the imaging device 1 to receive imaging, or sending the bed board 33 and the target object on the bed board 33 into the radiotherapy position of the radiotherapy device 2 to receive treatment. This achieves the transfer of the target object to be radiotherapy between the imaging device 1 and the radiotherapy device 2, reducing the risk of changes in the target object's position and thus improving the accuracy of radiotherapy treatment.
[0054] This application does not limit the structure and type of the drive device 32, as long as it can drive the bed plate 33 to rotate. The specific device can be selected according to the actual situation. For example, the drive device 32 includes a rotary motor, the output shaft of which is connected to the bed plate 33 to drive the bed plate 33 to rotate.
[0055] To assist in patient positioning and ensure precise targeting of the radiation beam to the tumor, thereby improving treatment accuracy and efficacy, see [link to relevant documentation]. Figure 2 and Figure 3 In this embodiment of the application, the driving device 32 can also be configured to drive the bed board 33 to move along the X-axis, Y-axis and Z-axis directions; wherein the X-axis, Y-axis and Z-axis directions are perpendicular to each other, the front end of the bed board 33 is one end of the bed board 33 in the Y-axis direction, and the Z-axis direction is parallel to the vertical direction (gravity direction).
[0056] In this way, before the target object is positioned in the imaging device 1 for imaging, the drive device 32 can drive the bed board 33 to move along the X-axis, Y-axis, and Z-axis directions, thereby moving the target object on the bed board 33 along the X-axis, Y-axis, and Z-axis directions and adjusting the position of the target object in the imaging device 1. This improves the irradiation accuracy of the imaging radiation beam, ensuring that the imaging radiation beam accurately irradiates the tumor, thus improving the imaging quality.
[0057] Similarly, before the target object is positioned in the radiotherapy device 2 for radiotherapy, the drive device 32 can move the bed board 33 along the X-axis, Y-axis, and Z-axis directions, thereby moving the target object on the bed board 33 along the X-axis, Y-axis, and Z-axis directions and adjusting the target object's position within the radiotherapy device 2. This improves the irradiation accuracy of the radiotherapy beam, ensuring precise targeting of the tumor, thus enhancing radiotherapy precision and effectiveness.
[0058] In addition, the drive device 32 drives the bed board 33 to move along the Z-axis, which can also adjust the height of the bed board 33, making it easier for the target object to get on and off the bed.
[0059] It is understood that there are many ways to enable the drive device 32 to drive the bed plate 33 to move along the X-axis, Y-axis and Z-axis directions. The specific method can be selected according to the actual situation. This application does not limit this. Some of the possible methods are described below as examples.
[0060] In some embodiments, the drive device 32 includes an X-axis moving motor and an X-axis transmission mechanism. The output shaft of the X-axis moving motor is connected to the bed board 33 through the X-axis transmission mechanism. The X-axis moving motor can drive the X-axis transmission mechanism to move, thereby causing the bed board 33 to move along the X-axis direction.
[0061] The X-axis transmission mechanism can be a ball screw, gear rack, or other similar mechanism, and the specific choice can be made according to the actual situation. This application does not impose any specific limitations on this.
[0062] Based on this, the drive device 32 also includes a Y-axis moving motor and a Y-axis transmission mechanism. The output shaft of the Y-axis moving motor is connected to the bed board 33 through the Y-axis transmission mechanism. The Y-axis moving motor can drive the Y-axis transmission mechanism to move, thereby driving the bed board 33 to move along the Y-axis direction.
[0063] The Y-axis transmission mechanism can be a ball screw, gear rack, or other similar mechanism, and the specific choice can be made according to the actual situation. This application does not impose any specific limitations on this.
[0064] In addition, the drive device 32 also includes a Z-axis moving motor and a Z-axis transmission mechanism. The output shaft of the Z-axis moving motor is connected to the bed plate 33 through the Z-axis transmission mechanism. The Z-axis moving motor can drive the Z-axis transmission mechanism to move, thereby driving the bed plate 33 to move along the Z-axis direction.
[0065] The Z-axis transmission mechanism can be a ball screw, gear rack, or other similar mechanism, and the specific choice can be made according to the actual situation. This application does not impose any specific limitations on this.
[0066] In other embodiments, the drive device 32 is a robotic arm capable of driving the bed plate 33 to move along the X-axis, Y-axis, and Z-axis. This application does not limit the specific structure of the robotic arm; it can be selected according to actual circumstances.
[0067] To improve the automation level of the radiotherapy system 100 and enable the shared bed 3 to automatically transfer target objects between the imaging device 1 and the radiotherapy device 2, the shared bed 3 in this embodiment may further include a drive motor and a transmission assembly. The drive motor is connected to the slide rail 31, and the output shaft of the drive motor is connected to the drive device 32 through the transmission assembly. The drive motor drives the transmission assembly to move, thereby causing the drive device 32 to slide along the slide rail 31.
[0068] In this way, during the radiotherapy process, only the drive motor needs to be controlled to drive the drive device 32 to slide along the slide rail 31 via the transmission components. This, in turn, causes the bed board 33 and the target object on the bed board 33 to automatically transfer between the imaging device 1 and the radiotherapy device 2 along the slide rail 31. This reduces manual intervention and improves the automation level of the radiotherapy system 100.
[0069] It should be noted that this application does not impose specific limitations on the structure of the transmission component, and it can be selected according to the actual situation. For example, the transmission component can be a ball screw, gear rack, or other mechanism.
[0070] For example, the transmission component is a ball screw, which includes a screw and a nut that are screwed together. The screw is connected to the output shaft of the drive motor, and the nut is connected to the drive device 32. The drive motor drives the screw to rotate, thereby causing the nut to move axially along the screw, and subsequently causing the drive device 32 connected to the nut to move axially along the screw. Here, the axial direction of the screw needs to be set parallel to the extension direction of the slide rail 31 so that the drive device 32 can slide along the slide rail when the drive motor is running.
[0071] In order to reduce the interference of the shared bed 3 on the imaging device 1 or the radiotherapy device 2, especially when the imaging device 1 is an MRI device, the main body of the shared bed 3 (the part of the shared bed 3 other than electrical components and circuits) can be made of non-ferromagnetic materials. For example, at least one of the slide rail 31, bed board 33, X-axis transmission mechanism, Y-axis transmission mechanism, Z-axis transmission mechanism and transmission assembly is made of non-ferromagnetic materials to ensure that the imaging device 1 and the radiotherapy device 2 can work normally.
[0072] For example, the slide rail 31, bed board 33, X-axis transmission mechanism, Y-axis transmission mechanism, Z-axis transmission mechanism and transmission components are all made of non-ferromagnetic materials. For instance, the slide rail 31, bed board 33, X-axis transmission mechanism, Y-axis transmission mechanism, Z-axis transmission mechanism and transmission components are all made of stainless steel.
[0073] To further reduce the interference of the shared bed 3 on the imaging equipment 1 or the radiotherapy equipment 2, an electromagnetic shielding layer can be installed on the electrical components and circuits in the shared bed, wherein the electromagnetic shielding layer can be made of copper.
[0074] For example, at least one of the rotary motor, X-axis traverse motor, Y-axis traverse motor, Z-axis traverse motor, and drive motor is provided with an electromagnetic shielding layer. For instance, the rotary motor, X-axis traverse motor, Y-axis traverse motor, Z-axis traverse motor, and drive motor are all provided with electromagnetic shielding layers.
[0075] To avoid interference between the bed board 33 and the imaging device 1 and the radiotherapy device 2 during the 180° rotation, see [link to relevant documentation]. Figure 1 , Figure 2 and Figure 4 The bed board 33 can be driven to rotate by a first preset angle, then driven to move a preset distance along the slide rail 31, and then driven to rotate by a second preset angle. The sum of the first preset angle and the second preset angle is 180°, for example, the first preset angle and the second preset angle are both equal to 90°.
[0076] It is understandable that the preset distance can be designed according to the length of the bed board 33, and this application does not make specific limitations on it.
[0077] The following will provide an exemplary description of some operational steps of the shared bed 3 in the radiotherapy process, with reference to the accompanying drawings.
[0078] In some embodiments, see Figure 5 When the front end of the bed board 33 of the shared bed 3 is in the imaging position of the imaging device 1, the front end of the bed board 33 of the shared bed 3 can be switched to the treatment position of the radiotherapy device 2 through the following steps:
[0079] 1. Drive the bed board 33 to move along the arrangement direction of the imaging device 1 and the radiotherapy device 2, so as to retract the front end of the bed board 33 onto the drive device 32;
[0080] 2. Drive the bed board 33 to rotate 90° clockwise;
[0081] 3. Drive the bed board 33 to move a preset distance along the slide rail 31 toward the radiotherapy device 2;
[0082] 4. Rotate the drive bed 33 90° clockwise;
[0083] 5. Drive the bed board 33 to move along the arrangement direction of the imaging device 1 and the radiotherapy device 2, so as to send the front end of the bed board 33 into the treatment position of the radiotherapy device 2.
[0084] In other embodiments, when the front end of the bed board 33 of the shared bed 3 is in the imaging position of the imaging device 1, the front end of the bed board 33 of the shared bed 3 can be switched to the treatment position of the radiotherapy device 2 by the following steps:
[0085] 1. Drive the bed board 33 to move along the arrangement direction of the imaging device 1 and the radiotherapy device 2, so as to retract the front end of the bed board 33 onto the drive device 32;
[0086] 2. Drive the bed board 33 to rotate 90° counterclockwise;
[0087] 3. Drive the bed board 33 to move a preset distance along the slide rail 31 toward the radiotherapy device 2;
[0088] 4. Drive the bed board 33 to rotate 90° counterclockwise;
[0089] 5. Drive the bed board 33 to move along the arrangement direction of the imaging device 1 and the radiotherapy device 2, so as to send the front end of the bed board 33 into the treatment position of the radiotherapy device 2.
[0090] In some embodiments, see Figure 6 When the front end of the bed board 33 of the shared bed 3 is in the treatment position of the radiotherapy device 2, the front end of the bed board 33 of the shared bed 3 can be switched to the imaging position of the imaging device 1 through the following steps:
[0091] 1. Drive the bed board 33 to move along the arrangement direction of the imaging device 1 and the radiotherapy device 2, so as to retract the front end of the bed board 33 onto the drive device 32;
[0092] 2. Drive the bed board 33 to rotate 90° counterclockwise;
[0093] 3. Drive the bed board 33 to move a preset distance along the slide rail 31 toward the imaging device 1;
[0094] 4. Drive the bed board 33 to rotate 90° counterclockwise;
[0095] 5. Drive the bed board 33 to move along the arrangement direction of the imaging device 1 and the radiotherapy device 2, so as to send the front end of the bed board 33 into the imaging position of the imaging device 1.
[0096] In other embodiments, when the front end of the bed board 33 of the shared bed 3 is in the treatment position of the radiotherapy device 2, the front end of the bed board 33 of the shared bed 3 can be switched to the imaging position of the imaging device 1 by the following steps:
[0097] 1. Drive the bed board 33 to move along the arrangement direction of the imaging device 1 and the radiotherapy device 2, so as to retract the front end of the bed board 33 onto the drive device 32;
[0098] 2. Drive the bed board 33 to rotate 90° clockwise;
[0099] 3. Drive the bed board 33 to move a preset distance along the slide rail 31 toward the imaging device 1;
[0100] 4. Rotate the drive bed 33 90° clockwise;
[0101] 5. Drive the bed board 33 to move along the arrangement direction of the imaging device 1 and the radiotherapy device 2, so as to send the front end of the bed board 33 into the imaging position of the imaging device 1.
[0102] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.
[0103] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A shared bed for use in a radiotherapy system, the radiotherapy system comprising an imaging device and a radiotherapy device arranged opposite each other, characterized in that, The shared bed includes: A slide rail extends along the arrangement direction of the imaging device and the radiotherapy device; A driving device is connected to the slide rail and located between the imaging device and the radiotherapy device; the driving device is capable of sliding along the slide rail between the imaging device and the radiotherapy device. A bed board, connected to the drive device, and used to support a target object; the drive device is capable of driving the bed board to rotate so that the front end of the bed board faces the imaging device or the radiotherapy device; Specifically, when the front end of the bed board faces the imaging device, the driving device can drive the bed board to move so as to send the front end of the bed board into the imaging position of the imaging device; when the front end of the bed board faces the radiotherapy device, the driving device can drive the bed board to move so as to send the front end of the bed board into the treatment position of the radiotherapy device.
2. The shared bed according to claim 1, characterized in that, The main body of the shared bed is made of a non-ferromagnetic material.
3. The shared bed according to claim 2, characterized in that, The slide rail is made of stainless steel; and / or, the bed board is made of stainless steel.
4. The shared bed according to any one of claims 1-3, characterized in that, The drive device can drive the bed board to move along the X-axis, Y-axis and Z-axis directions; The X-axis, Y-axis, and Z-axis are perpendicular to each other, the front end of the bed board is one end of the bed board in the Y-axis direction, and the Z-axis is parallel to the vertical direction.
5. The shared bed according to claim 1, characterized in that, The shared bed also includes: A drive motor, which is connected to the slide rail; A transmission assembly is provided, wherein the output shaft of the drive motor is connected to the drive device via the transmission assembly; the drive motor is used to drive the transmission assembly to move, thereby causing the drive device to slide along the slide rail.
6. The shared bed according to claim 5, characterized in that, The transmission component is a ball screw, which includes a screw and a nut that are screwed together. The screw is connected to the output shaft of the drive motor, and the nut is connected to the drive device. The drive motor is used to drive the screw to rotate, thereby causing the nut to move along the axial direction of the screw.
7. The shared bed according to claim 5 or 6, characterized in that, The transmission component is made of a non-ferromagnetic material.
8. The shared bed according to claim 7, characterized in that, The transmission assembly is made of stainless steel.
9. A radiotherapy system, characterized in that, include: The shared bed as described in any one of claims 1-8; Radiotherapy equipment, wherein the radiotherapy equipment has a radiotherapy position; An imaging device is disposed opposite to the radiotherapy device; the imaging device has an imaging position.
10. The radiotherapy system according to claim 9, characterized in that, The imaging equipment includes at least one of MRI, CT and PET equipment.