Pre-positioning bed and radiotherapy pre-positioning system
By using a pre-swing bed and a pre-swing system for radiation therapy in radiation therapy, patient positioning and image guidance are performed outside the treatment room, the problem of residual radiation and low utilization in the treatment room is solved, improving treatment efficiency and reducing radiation dose.
Patent Information
- Application Number
- CN202510151393.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-06-13
AI Technical Summary
During the radiation therapy process, the remaining rays in the treatment room will cause radiation to the medical staff and the next patient, and the actual utilization rate of the treatment room is low, resulting in a decrease in overall treatment efficiency.
The pre-swing bed and radiation therapy pre-swing system are used to place the patient, fix and image guidance outside the treatment room through a walking device, and then the patient is transported to the treatment room for treatment. After the treatment is completed, the patient is transported directly to the treatment room.
Complete patient placement and image guidance outside the treatment room, reduce the need for medical staff to enter the treatment room, improve treatment efficiency, reduce radiation doses for medical staff and patients, and reduce overall treatment costs.
Smart Images
Figure CN120132237A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of radiotherapy, and particularly to a pre-positioning bed and a radiotherapy pre-positioning system. Background Art
[0002] When using a radiotherapy device to perform radiotherapy on a patient, usually a dedicated treatment room is set up, and a treatment bed is placed in the treatment room. The patient enters the treatment room and lies on the treatment bed. After the medical staff use a patient fixation device to fix the patient on the treatment bed, they visually align the laser lamp with the markings on the patient's body surface. Subsequently, the patient's image is acquired through an image guidance device, and the fractionated image and the reference image are registered. Then, the treatment bed can move the patient to the treatment position according to the registration information. The radiotherapy device outputs a treatment beam to start the treatment process. After the treatment is over, the treatment bed is lowered to a low position, and the patient gets out of the bed and leaves the treatment room. The above treatment process is all completed in the treatment room.
[0003] However, for radiotherapy equipment such as proton heavy ion and BNCT, after the treatment process is over, the remaining ray level in the treatment room is relatively high. Therefore, if the medical staff enter the treatment room immediately after the treatment process is over to evacuate the patient or perform the positioning of the next patient to be treated, the remaining rays in the treatment room will cause additional radiation to the medical staff and / or the next patient; and if the medical staff wait until the radiation level in the treatment room drops to a certain value before entering the treatment room to evacuate the patient, the patient cannot leave immediately after the treatment is over and still needs to stay in the treatment room, so the patient will receive additional radiation.
[0004] In addition, after the patient enters the treatment room, they need to lie on the treatment bed and be fixed with the help of medical staff, and then processes such as positioning and image guidance are also required before the treatment can be carried out. For example, if the treatment time for a single patient is about 10 minutes, then the actual beam output time is usually only about 3 minutes, while the processes such as patient positioning and image guidance will take about 7 minutes. And after the treatment is over, the medical staff usually need to wait for dozens of minutes until the radiation level in the treatment room drops to a certain value before entering the treatment room to evacuate the patient. During this waiting period, the treatment room cannot treat the next patient and is actually in a vacant state. Therefore, the actual utilization rate of the treatment room is relatively low, which results in a decrease in the overall treatment efficiency.
[0005] To solve the above problems, proton and BNCT treatment centers usually build multiple treatment rooms and alternately guide the beam of the accelerator of the radiotherapy device to different treatment rooms to improve the overall efficiency of the treatment center. However, usually, building a single treatment room requires an investment of tens of millions of yuan and occupies hundreds of square meters. Therefore, the above method of multiple treatment rooms will greatly increase the overall treatment cost of the treatment center. Summary of the invention
[0006] In view of this, the present invention provides a pre-positioning bed and a radiotherapy pre-positioning system, which can effectively improve treatment efficiency and reduce overall treatment costs.
[0007] The technical solution of the present invention is specifically achieved as follows:
[0008] A pre-positioning bed, comprising: a walking device, a clamping device and a positioning bed board;
[0009] The clamping device is arranged on the walking device and is used for clamping and lifting the positioning bed board.
[0010] Preferably, the positioning bed board is provided with: a switching device, a fixing device and a positioning device;
[0011] The adapter is arranged at the bottom of the positioning bed plate, and is used to connect and fix the positioning bed plate to the scanning bed or the treatment bed;
[0012] The fixing device is used to fix the patient on the positioning bed board;
[0013] The positioning device is used to position the patient.
[0014] Preferably, the walking device comprises: a base and a bracket;
[0015] The base is provided with a driving device and at least one walking mechanism; the driving device is used to drive the walking mechanism to move freely;
[0016] The bracket comprises: a top plate and at least one column; the bottom of the column is fixedly connected to the top of the base; the top of the column is fixedly connected to the top plate;
[0017] The clamping device is arranged at the bottom of the top plate.
[0018] Preferably, the clamping device comprises: a plurality of clamping mechanisms;
[0019] The clamping mechanism is arranged at the bottom of the top plate of the bracket.
[0020] Preferably, the clamping mechanism comprises: a driver, a support arm, a bottom support and a clamping claw;
[0021] The driver is arranged on the top plate of the bracket;
[0022] The support arm is arranged at the bottom of the top plate of the bracket, and the top of the support arm is connected to the driver;
[0023] The bottom support is arranged at the bottom of the support arm;
[0024] The clamping jaw is arranged on the bottom support and connected with the driver.
[0025] Preferably, the driver comprises: a slide rail, a slider, a motor, a threaded screw and a lifting rod;
[0026] The slide rail is arranged on the top plate of the bracket;
[0027] The sliding block is slidably arranged on the sliding rail;
[0028] The threaded screw is passed through the slider, and one end of the threaded screw is connected to the motor;
[0029] The bottom of the slider is connected to the top of the support arm;
[0030] One end of the lifting rod is connected to the motor, and the other end is connected to the clamping claw.
[0031] Preferably, the adapter device comprises: a first adapter plate, a first fixing portion, a second adapter plate and a second fixing portion;
[0032] The first adapter plate is arranged at the bottom of the positioning bed board;
[0033] The first fixing portion is arranged at the bottom of the first adapter plate;
[0034] The second adapter plate is arranged on the top of the scanning bed body or the treatment bed body;
[0035] The second fixing portion is arranged on the top of the second adapter plate.
[0036] The present application also proposes a radiotherapy pre-positioning system, the system comprising: a positioning preparation room, a treatment room and a pre-positioning bed as claimed in any one of claims 1 to 7;
[0037] The positioning preparation room is provided with a scanning bed, a first space positioning device, and an image guiding device;
[0038] The treatment room is provided with a treatment bed, a second space positioning device and treatment equipment;
[0039] The walking device of the pre-positioning bed is used to travel back and forth between the positioning preparation room and the treatment room according to a preset path.
[0040] Preferably, the first spatial positioning device and the second spatial positioning device both include: one or more sets of optical positioning devices;
[0041] The optical positioning device is used to identify the positioning device on the positioning bed board and locate the body position of the patient on the positioning bed board according to the positioning device.
[0042] Preferably, the image guiding device includes: an image acquisition device and an image registration device;
[0043] The image acquisition device is configured to acquire image data of a patient on the positioning bed board;
[0044] The image registration device is configured to register the image data acquired by the image acquisition device with a preset reference image, and output the position deviation value between the image data and the reference image as registration deviation information to the pre-positioning bed.
[0045] As can be seen above, in the pre-positioning bed and the radiotherapy pre-positioning system of the present invention, since the patient positioning can be performed outside the treatment room first, the patient is fixed on the positioning bed board and positioned, the image data of the patient is acquired and registered by the image guiding device, and then the patient is transported to the treatment bed in the treatment room for corresponding treatment; moreover, after the treatment of the patient is completed, the patient can be directly transported outside the treatment room. In the above process, the patient positioning and image guiding can be completed outside the treatment room, and medical staff do not need to enter the treatment room. Therefore, the occupation of the treatment room during the positioning and image guiding processes can be greatly reduced, the treatment efficiency can be effectively improved, the radiation dose received by medical staff during the treatment process of the radiotherapy device can be effectively reduced, the stay time of the patient in the treatment room can be greatly shortened, and the radiation dose received by the patient can be effectively reduced.
[0046] In addition, since the patient positioning and image guiding are completed in the positioning preparation room without radiation, there is no need to deliberately shorten the time and it can be completed calmly; moreover, this process can be automatically completed by the pre-positioning bed in cooperation with the equipment in the positioning preparation room. Therefore, the positioning accuracy can be effectively improved, the workload of medical staff can be greatly reduced, and the overall treatment cost can be reduced. Description of the Drawings
[0047] Figure 1 Structural schematic of the pre-positioning bed in a specific embodiment of the present application Figure 1 .
[0048] Figure 2 Structural schematic of the pre-positioning bed in a specific embodiment of the present application Figure 2 .
[0049] Figure 3 Structural schematic of the pre-positioning bed in a specific embodiment of the present application Figure 3 .
[0050] Figure 4 Usage schematic of the pre-positioning bed in a specific embodiment of the present application Figure 1 .
[0051] Figure 5 This is a schematic diagram of the use of the pre-positioning bed in the specific embodiment of the present application. Figure 2 .
[0052] Figure 6 This is a schematic diagram of the use of the pre-positioning bed in the specific embodiment of the present application. Figure 3 .
[0053] Figure 7 This is a schematic diagram of the use of the pre-positioning bed in the specific embodiment of the present application. Figure 4 .
[0054] Figure 8 This is a schematic diagram of the use of the pre-positioning bed in the specific embodiment of the present application. Figure 5 .
[0055] Figure 9 It is a schematic diagram of the structure of a radiotherapy pre-positioning system in a specific embodiment of the present application.
[0056] Figure 10 The structure of the clamping mechanism in the specific embodiment of the present application is shown in FIG. Figure 1 .
[0057] Figure 11 The structure of the clamping mechanism in the specific embodiment of the present application is shown in FIG. Figure 2 .
[0058] Figure 12 The structure of the switching device in the specific embodiment of the present application is shown in FIG. Figure 1 .
[0059] Figure 13 The structure of the switching device in the specific embodiment of the present application is shown in FIG. Figure 2 .
[0060] Figure 14 The structure of the switching device in the specific embodiment of the present application is shown in FIG. Figure 3 . DETAILED DESCRIPTION
[0061] In order to make the technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0062] In the technical solution of the present application, a pre-positioning bed is also proposed.
[0063] Figures 1 - 3 Schematic diagram of the structure of the pre-positioning bed in the specific embodiment of the present application. Figures 1 - 3 As shown, the pre-positioning bed in the specific embodiment of the present application may include: a walking device 11, a clamping device 12 and a positioning bed board 13;
[0064] The clamping device 12 is disposed on the walking device 11 and is used for clamping and lifting the positioning bed board 13 .
[0065] The above-mentioned pre-positioning bed of the present application is provided with a walking device, so it can be freely moved by the walking device. In addition, the walking device is also provided with a clamping device, so that the clamping device can clamp the positioning bed board, and can move the positioning bed board up and down, change the height of the positioning bed board, lift or drop the bed positioning bed board, and thus raise or lower the positioning bed board.
[0066] In addition, as an example, in a specific embodiment of the present application, the positioning bed board 13 may be further provided with: a switching device, a fixing device and a positioning device;
[0067] The adapter is arranged at the bottom of the positioning bed plate 13, and is used to connect and fix the positioning bed plate 13 to the scanning bed or the treatment bed;
[0068] The fixing device is used to fix the patient on the positioning bed board 13;
[0069] The positioning device is used to position the patient.
[0070] In addition, in the technical solution of the present application, a radiotherapy pre-positioning system is also proposed.
[0071] Figures 4 - 8 It is a schematic diagram of the use of the pre-positioning bed in a specific embodiment of the present application. Figure 9 FIG. 1 is a schematic diagram of the structure of the radiotherapy pre-positioning system in a specific embodiment of the present application. Figure 9 As shown, the radiotherapy pre-positioning system in the specific embodiment of the present application may include: a positioning preparation room 91, a treatment room 92 and a pre-positioning bed 10;
[0072] The positioning preparation room 91 is provided with a scanning bed, a first spatial positioning device, and an image guiding device (not shown in the figure);
[0073] The treatment room 92 is provided with a treatment bed, a second space positioning device and treatment equipment (not shown in the figure);
[0074] The pre-positioning bed 10 comprises: a walking device 11, a clamping device 12 and a positioning bed board 13;
[0075] The walking device 11 of the pre-positioning bed 10 is used to travel back and forth between the positioning preparation room 91 and the treatment room 92 according to a preset path;
[0076] The clamping device 12 is disposed on the walking device 11 and is used for clamping and lifting the positioning bed board 13 .
[0077] In addition, as an example, in a specific embodiment of the present application, the positioning bed board 13 may be further provided with: a switching device, a fixing device and a positioning device;
[0078] The adapter is used to connect and fix the positioning bed plate 13 to the scanning bed or the treatment bed;
[0079] The fixing device is used to fix the patient on the positioning bed board 13;
[0080] The positioning device is used for the first spatial positioning device and the second spatial positioning device to position the patient.
[0081] In the radiotherapy pre-positioning system of the present application, a treatment room, a positioning preparation room and a pre-positioning bed are provided. Since the pre-positioning bed is provided with a walking device, the pre-positioning bed can travel back and forth between the positioning preparation room and the treatment room according to a preset path through the walking device. When using the above-mentioned radiotherapy pre-positioning system, the pre-positioning bed will first be moved to the scanning bed in the positioning preparation room by the walking device, and then the positioning bed board will be moved to the top of the scanning bed by the clamping device, and the positioning bed board will be connected and fixed to the scanning bed through the adapter. Then, the clamping device releases the positioning bed board and disengages from the positioning bed board; the pre-positioning bed moves and leaves the scanning bed through the walking device. Subsequently, the scanning bed will be lowered to the patient's upper bed position so that the patient can conveniently lie on the positioning bed board located on the top of the scanning bed. After the patient lies down, the first spatial positioning device in the positioning preparation room will determine the first displacement information of the positioning bed board according to the positioning device on the positioning bed board, and transmit the first displacement information to the scanning bed; the scanning bed can drive the positioning bed board to move to the preset reference position according to the received first displacement information; then, the patient is fixed on the positioning bed board by the fixing device on the positioning bed board. Subsequently, the image guidance device in the positioning preparation room will collect the image data of the patient on the positioning bed board and perform registration, and then output the registration deviation information to the pre-positioning bed. After receiving the registration deviation, the pre-positioning bed moves to the scanning bed through the walking device, clamps the positioning bed board through the clamping device, and separates the positioning bed board from the scanning bed through the adapter on the positioning bed board. Then, the pre-positioning bed can leave the positioning preparation room and move to the treatment room according to the preset path through the walking device.
[0082] After the pre-positioning bed enters the treatment room, it is moved to the treatment bed by the walking device, the positioning bed board is moved above the treatment bed, and the positioning bed board is connected and fixed to the treatment bed through the adapter. Then, the clamping device releases the positioning bed board and detaches from the positioning bed board; the pre-positioning bed is moved by the walking device and leaves the treatment bed. The second spatial positioning device in the treatment room will determine the second displacement information of the positioning bed board according to the positioning device on the positioning bed board, and transmit the second displacement information to the treatment bed; the treatment bed can move the positioning bed board to the preset reference position according to the received second displacement information. The pre-positioning bed outputs the alignment deviation information to the treatment bed, and the treatment bed drives the positioning bed board to move the patient to the treatment position. The treatment equipment in the treatment room performs corresponding treatment on the patient (at this time, the patient is lying on the positioning bed board).
[0083] After the treatment equipment finishes treating the patient, the pre-positioning bed moves to the treatment bed through the walking device, clamps the positioning bed board through the clamping device (at this time, the patient lies on the positioning bed board), and separates the positioning bed board from the treatment bed through the adapter on the positioning bed board. Then, the pre-positioning bed can leave the treatment room along the preset path through the walking device; after the pre-positioning bed leaves the treatment room, the pre-positioning bed can lower the positioning bed board to a low position, and the patient gets out of bed.
[0084] Therefore, by using the above-mentioned radiotherapy pre-positioning system, the patient can be positioned outside the treatment room first, the patient can be fixed on the positioning bed board and positioned, the patient's image data can be collected and registered by the image guidance device, and then the patient can be transported to the treatment bed in the treatment room for corresponding treatment; and after the treatment of the patient is completed, the patient can be directly transported outside the treatment room. In the above process, the patient's positioning and image guidance can be completed outside the treatment room, and medical staff do not need to enter the treatment room. Therefore, the occupancy of the treatment room by the positioning and image guidance process can be greatly reduced, effectively improving the treatment efficiency, and can also effectively reduce the radiation dose received by medical staff during the treatment process of the radiotherapy device, and at the same time, it can also greatly shorten the patient's stay time in the treatment room, effectively reducing the radiation dose received by the patient.
[0085] In addition, since the patient's positioning and image guidance are completed in a positioning preparation room without radiation, there is no need to deliberately shorten the time and it can be completed calmly; and the process can be automatically completed by the pre-positioning bed and the equipment in the positioning preparation room, so it can effectively improve the positioning accuracy, greatly reduce the workload of medical staff, and reduce the overall treatment cost.
[0086] In addition, in the technical solution of the present application, the above-mentioned pre-positioning bed and radiotherapy pre-positioning system can also be realized through a variety of specific implementations. The following will take several specific implementations as examples to introduce the technical solution of the present application in detail.
[0087] For example, as an example, in a specific embodiment of the present application, the pre-positioning bed can be set as a gantry structure or a saddle-shaped structure, so as to facilitate the clamping device to clamp and lift the positioning bed board, and also facilitate moving above the scanning bed or the treatment bed to move the positioning bed board onto the scanning bed or the treatment bed.
[0088] For another example, as an example, as Figures 1 - 3 shown, in a specific embodiment of the present application, the traveling device 11 of the pre-positioning bed may include: a base 101 and a bracket 102;
[0089] A driving device and at least one traveling mechanism are provided on the base 101; the driving device is used to drive the traveling mechanism to move freely;
[0090] The bracket 102 includes: a top plate 122 and at least one column 121; the bottom of the column 121 is fixedly connected to the top of the base 101; the top of the column 121 is fixedly connected to the top plate 122;
[0091] The clamping device 13 is arranged at the bottom of the top plate 122.
[0092] For another example, as an example, in a specific embodiment of the present application, the traveling mechanism may be an automated guided vehicle (AGV), so that it can travel back and forth between the positioning preparation room and the treatment room based on the AGV self-guidance technology according to a preset path.
[0093] Of course, the above-mentioned traveling mechanism may also be other suitable devices that can move freely, which will not be listed one by one here.
[0094] In addition, in the technical solution of the present application, the number of traveling mechanisms can be determined in advance according to the needs of the actual application scenario.
[0095] For example, as an example, as Figures 1 - 3 shown, in a specific embodiment of the present application, two traveling mechanisms may be provided on the base. Of course, the number of the above-mentioned traveling mechanisms may also be other suitable values, which will not be listed one by one here.
[0096] In addition, in the technical solution of the present application, the number of columns can also be determined in advance according to the needs of the actual application scenario.
[0097] For example, as an example, as Figures 1 - 3 shown, in a specific embodiment of the present application, the bracket may include 4 columns. Of course, the number of the above-mentioned columns may also be other suitable values, which will not be listed one by one here.
[0098] For another example, as an illustration, in a specific embodiment of the present application, the clamping device 13 may include: a plurality of clamping mechanisms;
[0099] The clamping mechanisms are disposed at the bottom of the top plate 122 of the bracket 102.
[0100] Through the above-mentioned plurality of clamping mechanisms, the positioning bed plate can be clamped and lifted.
[0101] For another example, as an illustration, as Figure 10 shown, in a specific embodiment of the present application, the clamping mechanism 21 may include: a driver 201, a support arm 202, a bottom support 203, and a jaw 204;
[0102] The driver 201 is disposed on the top plate 122 of the bracket 102;
[0103] The support arm 202 is disposed at the bottom of the top plate 122 of the bracket 102, and the top of the support arm 202 is connected to the driver 201;
[0104] The bottom support 203 is disposed at the bottom of the support arm 202;
[0105] The jaw 204 is disposed on the bottom support 203 and is connected to the driver 201.
[0106] In the above clamping mechanism, the driver can drive the support arm to move horizontally and can also drive the jaw to move vertically up and down, so that the clamping mechanism can clamp or release the positioning bed plate through the bottom support and the jaw, and can lift the positioning bed plate after clamping the positioning bed plate.
[0107] In addition, as an illustration, as Figures 10 - 11 shown, in a specific embodiment of the present application, the driver 201 may further include: a slide rail 211, a slider 212, a motor 213, a threaded lead screw 214, and a lifting rod (not shown in the figure);
[0108] The slide rail 211 is disposed on the top plate 122 of the bracket 102;
[0109] The slider 212 is slidably disposed on the slide rail 211;
[0110] The threaded lead screw 214 is passed through the slider 212, and one end of the threaded lead screw 214 is connected to the motor 213;
[0111] The bottom of the slider 212 is connected to the top of the support arm 202;
[0112] One end of the lifting rod is connected to the motor 213 , and the other end is connected to the clamping claw 204 .
[0113] Therefore, the motor can drive the slider to move on the slide rail via the threaded screw, thereby driving the support arm to move in the horizontal direction; in addition, the motor can also drive the clamp to move up and down in the vertical direction via the lifting rod.
[0114] In addition, in the technical solution of the present application, the number of clamping mechanisms can also be predetermined according to the needs of the actual application scenario.
[0115] For example, as an example, Figures 1 - 3 As shown, in a specific embodiment of the present application, the clamping device may include: 4 clamping mechanisms. Of course, the number of the above clamping mechanisms may also be other suitable values, which are not listed here one by one.
[0116] In addition, as an example, Figures 12 - 14 As shown, in a specific embodiment of the present application, the adapter device may include: a first adapter plate 301, a first fixing portion 302, a second adapter plate 303, and a second fixing portion 304;
[0117] The first adapter plate 301 is arranged at the bottom of the positioning bed board 13;
[0118] The first fixing portion 302 is disposed at the bottom of the first adapter plate 301;
[0119] The second adapter plate 303 is arranged on the top of the scanning bed body or the treatment bed body;
[0120] The second fixing portion 304 is disposed on the top of the second adapter plate 303 .
[0121] Therefore, when it is necessary to dock and fix the positioning bed plate with the scanning bed or the treatment bed, the first fixing part at the bottom of the positioning bed plate can be connected and locked with the second fixing part at the top of the scanning bed body or the treatment bed body, so that the positioning bed plate can be fixed on the top of the scanning bed body or the treatment bed body. When the first fixing part and the second fixing part are unlocked and separated, the positioning bed plate can be separated from the scanning bed or the treatment bed.
[0122] Through the above-mentioned adapter device, it is only necessary to set the second adapter plate and the second fixing part in the above-mentioned adapter device on the scanning bed body or the treatment bed body, so that the positioning bed board can be docked and fixed with the scanning bed or the treatment bed, so that the positioning bed board can be suitable for various existing types of scanning beds or treatment beds without replacing the scanning bed or the treatment bed.
[0123] Additionally, as an example, in a specific embodiment of the present application, the positioning device may be one or more marking points provided on the positioning bed board, or one or more marking devices for collecting the patient's respiratory movement, or other suitable positioning devices, which will not be enumerated one by one here.
[0124] Additionally, as an example, in a specific embodiment of the present application, both the first spatial positioning device and the second spatial positioning device may include: one or more groups of optical positioning devices;
[0125] The optical positioning device is used to identify the positioning device on the positioning bed board and position the patient's body position on the positioning bed board according to the positioning device.
[0126] For example, as an example, in a specific embodiment of the present application, the optical positioning device may be a binocular optical positioning device, or other suitable optical positioning devices, which will not be enumerated one by one here.
[0127] Additionally, as an example, in a specific embodiment of the present application, the image guidance device may include: an image acquisition device and an image registration device;
[0128] The image acquisition device is used to acquire the image data of the patient on the positioning bed board;
[0129] The image registration device is used to register the image data acquired by the image acquisition device with a preset reference image, and output the position deviation value between the image data and the reference image as registration deviation information to the pre-positioning bed.
[0130] Additionally, as an example, in a specific embodiment of the present application, the image acquisition device may be a volumetric image acquisition device (for example, helical tomographic CT, cone beam CT, etc.); it may also be a KV-KV orthogonal image acquisition device; it may also be an optical surface-guided radiation therapy (SGRT) device, or other suitable image acquisition devices, which will not be enumerated one by one here.
[0131] For another example, as an example, in a specific embodiment of the present application, an internal passage for the walking device to pass through may be further provided between the positioning preparation room and the treatment room. Additionally, in order to prevent the influence of residual rays, radiation shielding needs to be done well in this internal passage.
[0132] In summary, in the technical solution of the present application, since the patient positioning can be first performed outside the treatment room, the patient is fixed on the positioning bed board and positioned, the image data of the patient is collected by the image guidance device and registered, and then the patient is transported to the treatment bed in the treatment room for corresponding treatment; moreover, after the treatment of the patient is completed, the patient can be directly transported outside the treatment room. In the above process, the patient positioning and image guidance can be completed outside the treatment room, and medical staff do not need to enter the treatment room. Therefore, the occupation of the treatment room during the positioning and image guidance processes can be greatly reduced, the treatment efficiency can be effectively improved, the radiation dose received by medical staff during the treatment process of the radiotherapy device can be effectively reduced, the stay time of the patient in the treatment room can be greatly shortened, and the radiation dose received by the patient can be effectively reduced.
[0133] In addition, since the patient positioning and image guidance are completed in the positioning preparation room without radiation, there is no need to deliberately shorten the time and it can be completed calmly; moreover, this process can be automatically completed by the pre-positioning bed in cooperation with the equipment in the positioning preparation room. Therefore, the positioning accuracy can be effectively improved, the workload of medical staff can be greatly reduced, and the overall treatment cost can be reduced.
[0134] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A pre-positioning bed, characterized in that: The pre-positioning bed comprises: a walking device, a clamping device and a positioning bed board; The clamping device is arranged on the walking device and is used for clamping and lifting the positioning bed board.
2. The pre-positioning bed according to claim 1, characterized in that: The positioning bed board is provided with: a switching device, a fixing device and a positioning device; The adapter is arranged at the bottom of the positioning bed plate, and is used to connect and fix the positioning bed plate to the scanning bed or the treatment bed; The fixing device is used to fix the patient on the positioning bed board; The positioning device is used to position the patient.
3. The pre-positioning bed according to claim 1, characterized in that: The walking device comprises: a base and a bracket; The base is provided with a driving device and at least one walking mechanism; the driving device is used to drive the walking mechanism to move freely; The bracket comprises: a top plate and at least one column; the bottom of the column is fixedly connected to the top of the base; the top of the column is fixedly connected to the top plate; The clamping device is arranged at the bottom of the top plate.
4. The pre-positioning bed according to claim 3, characterized in that: The clamping device comprises: a plurality of clamping mechanisms; The clamping mechanism is arranged at the bottom of the top plate of the bracket.
5. The pre-positioning bed according to claim 4, characterized in that: The clamping mechanism comprises: a driver, a support arm, a bottom support and a clamping claw; The driver is arranged on the top plate of the bracket; The support arm is arranged at the bottom of the top plate of the bracket, and the top of the support arm is connected to the driver; The bottom support is arranged at the bottom of the support arm; The clamping jaw is arranged on the bottom support and connected with the driver.
6. The pre-positioning bed according to claim 5, characterized in that: The driver comprises: a slide rail, a slider, a motor, a threaded screw and a lifting rod; The slide rail is arranged on the top plate of the bracket; The sliding block is slidably arranged on the sliding rail; The threaded screw is passed through the slider, and one end of the threaded screw is connected to the motor; The bottom of the slider is connected to the top of the support arm; One end of the lifting rod is connected to the motor, and the other end is connected to the clamping claw.
7. The pre-positioning bed according to claim 2, characterized in that: The adapter device comprises: a first adapter plate, a first fixing portion, a second adapter plate and a second fixing portion; The first adapter plate is arranged at the bottom of the positioning bed board; The first fixing portion is arranged at the bottom of the first adapter plate; The second adapter plate is arranged on the top of the scanning bed body or the treatment bed body; The second fixing portion is arranged on the top of the second adapter plate.
8. A radiotherapy pre-positioning system, characterized in that: The system comprises: a positioning preparation room, a treatment room and a pre-positioning bed as claimed in any one of claims 1 to 7; The positioning preparation room is provided with a scanning bed, a first space positioning device, and an image guiding device; The treatment room is provided with a treatment bed, a second space positioning device and treatment equipment; The walking device of the pre-positioning bed is used to travel back and forth between the positioning preparation room and the treatment room according to a preset path.
9. The radiotherapy pre-positioning system according to claim 8, characterized in that: The first spatial positioning device and the second spatial positioning device both include: one or more sets of optical positioning devices; The optical positioning device is used to identify the positioning device on the positioning bed board and locate the body position of the patient on the positioning bed board according to the positioning device.
10. The radiotherapy pre-positioning system according to claim 8, characterized in that: The image guiding device comprises: an image acquisition device and an image registration device; The image acquisition device is used to acquire image data of the patient on the positioning bed board; The image registration device is used to register the image data collected by the image acquisition device with a preset reference image, and output the position deviation value of the image data and the reference image as registration deviation information to the pre-positioning bed.