CN211561616U - Image guiding device in radiotherapy system - Google Patents
Image guiding device in radiotherapy system Download PDFInfo
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- CN211561616U CN211561616U CN201921929869.9U CN201921929869U CN211561616U CN 211561616 U CN211561616 U CN 211561616U CN 201921929869 U CN201921929869 U CN 201921929869U CN 211561616 U CN211561616 U CN 211561616U
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- 238000001959 radiotherapy Methods 0.000 title claims abstract description 27
- 238000003384 imaging method Methods 0.000 claims abstract description 26
- 230000005855 radiation Effects 0.000 claims abstract description 24
- 238000007408 cone-beam computed tomography Methods 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000002591 computed tomography Methods 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 44
- 239000013585 weight reducing agent Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 2
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The embodiment of the present application provides an image guidance device in a radiotherapy system, including: the device comprises a frame, a cone beam computer tomography device, an electronic field imaging device and a controller, wherein the frame is provided with the cone beam computer tomography device; the cone beam computed tomography device comprises a first flat panel detector and a first driving structure, wherein the first driving structure is respectively connected with the rack and the first flat panel detector and is used for driving the first flat panel detector to move on the rack; the electronic radiation field imaging device comprises a second flat panel detector and a second driving structure, wherein the second driving structure is respectively connected with the rack and the second flat panel detector and is used for driving the second flat panel detector to move on the rack; the controller is electrically connected with the first driving structure and the second driving structure respectively and is used for driving the first flat panel detector and the second flat panel detector to move respectively by the same mechanical control mechanism. The same controller is adopted to control the two devices, so that the size of the multipurpose medical equipment is reduced, and the installation and operation of operators are more convenient and faster.
Description
Technical Field
The embodiment of the application relates to the technical field of medical instruments, in particular to image guide equipment in a radiotherapy system.
Background
Tumors are a common frequently encountered disease, and patients suffering from tumor diseases are generally treated by radiotherapy. In radiotherapy systems, an image guidance apparatus consisting of a cone beam computed tomography device and an electron portal imaging device is generally used.
The principle of Cone Beam Computed Tomography (CBCT) is that an X-ray generator makes annular digital projections around a projection with a low dose of radiation, and then data obtained in intersections after multiple digital projections around the projection are recombined in a computer to obtain a three-dimensional image. Cone beam computed tomography devices are used to receive imaging beams emitted by an imaging head (bulb) for pre-treatment, in-treatment imaging to verify setup and for real-time tracking. An electron beam field imaging device (EPID) is a tool for acquiring a radiotherapy image by applying an electronic technique in a beam emitting direction when a beam irradiates a target region.
Because the cone beam computed tomography device and the electron field imaging device are usually controlled by different mechanical control mechanisms of different controllers, the volume of the image guidance device in the radiotherapy system is too large, and the universality of accessories adopted by the mechanical control mechanisms is poor, thereby increasing the operation and maintenance cost.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide an image guiding apparatus in a radiotherapy system, so as to overcome the problems in the prior art.
The embodiment of the present application provides an image guidance device in a radiotherapy system, including:
the device comprises a frame, a cone beam computer tomography device, an electronic field imaging device and a controller, wherein the cone beam computer tomography device, the electronic field imaging device and the controller are arranged on the frame;
the cone beam computed tomography device comprises a first flat panel detector and a first driving structure, wherein the first driving structure is respectively connected with the rack and the first flat panel detector and is used for driving the first flat panel detector to move on the rack;
the electronic radiation field imaging device comprises a second flat panel detector and a second driving structure, and the second driving structure is respectively connected with the rack and the second flat panel detector and is used for driving the second flat panel detector to move on the rack;
the controller is respectively connected with the first driving structure and the second driving structure and is used for respectively controlling the movement of the first flat panel detector and the second flat panel detector by using the same mechanical control mechanism.
Optionally, the first drive arrangement comprises a first power arrangement and the second drive arrangement comprises a second power arrangement, the first power arrangement being of the same type as the power arrangement.
Optionally, the first driving structure further comprises: the first guide assembly and the first transmission assembly; the second drive structure further comprises: the first guide assembly is used for movably guiding the first flat panel detector; the first transmission assembly is used for driving the first flat panel detector to move along the first guide assembly according to the driving force of the first power structure; and/or the second guide assembly is used for guiding the second flat panel detector to move along the stand; the second transmission assembly is used for driving the second flat panel detector to move on the rack along the second guide assembly according to the driving force of the second power structure.
Optionally, a first limiting structure is arranged on the first guide assembly and used for limiting the moving range of the first flat panel detector; and/or the presence of a gas in the gas,
and the second guide assembly is provided with a second limiting structure for limiting the moving range of the second flat panel detector.
Optionally, the apparatus further comprises a first mounting plate for mounting the first flat panel detector, the first mounting plate being connected to the first transmission assembly, so that the first flat panel detector moves along the first guide assembly under the driving force transmitted by the first transmission assembly; and/or
The equipment also comprises a second mounting plate used for mounting the second flat panel detector, the second mounting plate is connected with the second transmission assembly, and the second flat panel detector moves on the rack along the second guide assembly under the driving force transmitted by the second transmission assembly.
Optionally, a first mounting position is arranged on the first mounting plate, and is used for mounting the first flat panel detector; and/or the presence of a gas in the gas,
and a second mounting position is arranged on the second mounting plate and used for mounting the second flat panel detector.
Optionally, one end of the second mounting plate is connected to the second transmission assembly, and the other end of the second mounting plate is suspended and connected to the second flat panel detector, and the second flat panel detector is moved on the rack along the second guide assembly under the driving force transmitted by the second transmission assembly.
Optionally, a first radiation protection structure is arranged on the first mounting plate, and the first radiation protection structure is arranged at a position outside the first mounting position; and/or
The second radiation protection structure is arranged on the second mounting plate and is arranged at a position outside the second mounting position.
Optionally, the first driving structure further comprises a brake assembly for fixing a position of the first flat panel detector moving on the first guide assembly.
Optionally, a first weight-reducing structure is arranged on the first driving structure; and/or the presence of a gas in the gas,
and a second weight reduction structure is arranged on the second driving structure.
As can be seen from the above technical solutions, an embodiment of the present application provides an image guidance apparatus in a radiotherapy system, including: the device comprises a frame, a cone beam computer tomography device, an electronic field imaging device and a controller, wherein the cone beam computer tomography device, the electronic field imaging device and the controller are arranged on the frame; the cone beam computed tomography device comprises a first flat panel detector and a first driving structure, wherein the first driving structure is respectively connected with the rack and the first flat panel detector and is used for driving the first flat panel detector to move on the rack; the electronic radiation field imaging device comprises a second flat panel detector and a second driving structure, wherein the second driving structure is respectively connected with the rack and the second flat panel detector and is used for driving the second flat panel detector to move on the rack; the controller is electrically connected with the first driving structure and the second driving structure respectively and is used for driving the first flat panel detector and the second flat panel detector to move respectively by the same mechanical control mechanism. The cone beam computed tomography device and the electronic portal imaging device multiplex the controller, and the controller respectively controls the cone beam computed tomography device and the electronic portal imaging device through the same mechanical control mechanism, so that the size of the image guidance equipment is reduced, accessories adopted by the same mechanical control mechanism can be universal, and the operation and maintenance cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic structural diagram of an image guidance apparatus in a radiotherapy system in the present application.
Fig. 2 is a schematic view of the first driving structure.
Fig. 3 is a schematic view of the second driving structure.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.
The following further describes specific implementations of embodiments of the present application with reference to the drawings of the embodiments of the present application.
Fig. 1 is a schematic structural diagram of an image guidance apparatus in a radiotherapy system in the present application. As shown in fig. 1, an embodiment of the present application provides an image guidance apparatus in a radiotherapy system, which includes a machine frame 1, wherein a cone beam computed tomography device 2, an electron portal imaging device and a controller 4 are mounted on the machine frame 1; the cone beam computed tomography device 2 comprises a first flat panel detector 21 and a first driving structure 22, wherein the first driving structure 22 is respectively connected with the machine frame 1 and the first flat panel detector 21 and is used for driving the first flat panel detector 21 to move on the machine frame 1; the electronic portal imaging device comprises a second flat panel detector 31 and a second driving structure 32, wherein the second driving structure 32 is respectively connected with the rack 1 and the second flat panel detector 31 and is used for driving the second flat panel detector 31 to move on the rack 1; the controller 4 is electrically connected to the first driving structure 22 and the second driving structure 32, respectively, and is configured to drive the first flat panel detector 21 and the second flat panel detector 31 to move in the same mechanical control mechanism.
In this embodiment, the image guidance apparatus is provided with both the cone beam computed tomography apparatus 2 and the electron beam portal imaging apparatus, and when the cone beam computed tomography apparatus 2 needs to be operated, an operator controls the first driving structure to adjust the first flat panel detector 21 to a proper position through the controller 4. When the electronic portal imaging device needs to be operated, an operator controls the second driving structure 32 to adjust the second flat panel detector 31 to a proper position through the controller 4. It is of course also possible to operate the cone-beam computed tomography apparatus 2 and the electron portal imaging apparatus simultaneously for image guidance.
In this embodiment, the cone beam computed tomography apparatus and the electron portal imaging apparatus multiplex the controller, and the controller controls the cone beam computed tomography apparatus and the electron portal imaging apparatus respectively by using the same mechanical control mechanism, so that the size of the image guidance apparatus is reduced, and the parts used by the same mechanical control mechanism can be universal, thereby reducing the operation and maintenance cost.
Fig. 2 is a schematic structural diagram of the first driving structure 22. Fig. 3 is a schematic structural diagram of the second driving structure 32. As shown in fig. 2 and 3, optionally, in a specific implementation scenario, the first driving structure 22 includes a first power structure 221, the second driving structure 32 includes a second power structure 321, and the first power structure 221 and the second power structure 321 are of the same type. The specific structure of the first power structure 221 and the second power structure 321 is not limited as long as power can be provided. For example, it may be a servo motor or a hydraulic motor.
In this embodiment, for convenience of use and cost saving, the first power structure 221 and the second power structure 321 are driven by a servo motor. It should be noted that, in this case, the same types of the first power structure and the second power structure include: the servo motor adopted by the first power structure and the servo motor adopted by the second power structure are the same in type. By setting the first power structure 221 and the second power structure 321 to be of the same type, the design process of the image guiding device in the radiotherapy system is also made simpler and more convenient.
It should be noted that in other implementation scenarios, the types of the first power structure 221 and the second power structure 321 may also be different, and are not limited herein.
As shown in fig. 2, optionally, in a specific implementation scenario, the first driving structure 22 further includes a first guiding assembly 222 and a first transmission assembly 223, where the first guiding assembly 222 is configured to movably guide the first flat panel detector 21; the first transmission assembly 223 is used for driving the first flat panel detector 21 to move along the first guide assembly 222 according to the driving force of the first power structure 221. Specifically, the output shaft of the first power structure 221 is connected to the first transmission assembly 223, transmits a driving force to the first transmission assembly 223, drives the first transmission assembly 223 to rotate, and the first transmission assembly 223 transmits the driving force to the first flat panel detector 21, so that the first flat panel detector 21 slides along the first guide assembly 222. By arranging the first guide assembly 222 on the first driving structure 22 and driving the first flat panel detector 21 to slide along the first guide assembly 222 through the first transmission assembly 223, the moving position and direction of the first flat panel detector 21 are defined, the moving precision is ensured, the friction force of the first flat panel detector 21 in the moving process is reduced, the abrasion of the first flat panel detector 21 is reduced, the service life of the first flat panel detector 21 is prolonged, and the cost is saved.
It should be noted that the type of the first transmission assembly 223 is not limited, and a lead screw or a gear may be used. In order to save cost and simplify the structure, a lead screw is preferably selected as the first transmission assembly 223. The type of the lead screw is not limited.
It should be noted that the type of the first guiding assembly 222 is not limited, and a guiding rail or a sliding groove may be used. The number of the first guide assemblies 222 is not limited as long as the movement of the first flat panel detector 21 can be satisfied, for example, when a guide rail is selected as the first guide assembly 222, 1 guide rail, 2 guide rails, 4 guide rails, or the like may be provided.
Optionally, in a specific implementation scenario, as shown in fig. 3, the second driving structure 32 further includes: a second guide assembly 322 and a second transmission assembly 323. During the treatment, the second flat panel detector 31 can be carried by the second driving structure 32 to move circularly on the gantry 1, and the second guiding assembly 322 is used for guiding the second flat panel detector 32 to move along the gantry 1. The second transmission assembly 323 is used for driving the second flat panel detector 31 to move on the machine frame 1 along the second guiding assembly 322 on the machine frame 1 according to the driving force of the second power structure 321. Specifically, the second transmission assembly 323 is connected to an output shaft of the second power structure 321, such that the second transmission assembly 323 moves along the second guide assembly 322 under the driving of the second power structure 321. Through the arrangement of the second transmission assembly 323 and the second guide assembly 322, the second driving structure 32 carries the second flat panel detector 31 to perform circular movement on the frame 1, so as to meet the requirement of moving the position of the second flat panel detector 31 in the treatment process.
It should be noted that the type of the second guiding assembly 322 is not limited, and a guide rail or a sliding groove, etc. may be selected. And are not limited herein. In order to facilitate the circular movement of the second flat panel detector 31 on the frame 1, a gear ring is preferably used as the second guiding assembly 322, and a gear is correspondingly used as the second transmission assembly 323. Because the load of the gear is smaller, the running speed is lower, preferably, in a specific implementation scene, the gear selects a straight-tooth cylindrical gear with small modulus, the cylindrical gear has small volume, small modulus, easy processing and stable transmission, and the cost is saved.
Optionally, in a specific implementation scenario, when the first flat panel detector 21 moves along the first guide assembly 222, if the first flat panel detector 21 exceeds the lead of the first guide assembly 222, the first flat panel detector 21 needs to be reinstalled, which causes difficulty to an operator, so to avoid this, a first limiting structure is disposed on the first guide assembly 222 for limiting the moving range of the first flat panel detector 21. If an operator moves the first flat panel detector 21, the first flat panel detector 21 touches the first limiting structure, and the first flat panel detector cannot move any more, so that the operator is prompted that the flat panel detector has moved to the edge of the first guide assembly 222 and cannot move any more, and the first flat panel detector 21 is prevented from derailing.
Optionally, in a specific implementation scenario, when the second flat panel detector 31 moves along the second guide assembly 322, in order to prevent a failure caused by an excessively large moving range of the second flat panel detector 31, a second limiting structure is disposed on the second guide assembly 322, and is used for limiting the moving range of the second flat panel detector 31. The moving range limited by the second limit structure is larger than the moving range of the second flat panel detector 31 in normal use, so that the second limit structure does not affect the normal use of the image guidance device, and the fault caused by limiting the moving range of the second flat panel detector 31 to be too large is avoided.
It should be noted that the types of the first limiting structure and the second limiting structure are not limited, and may be, for example, limiting blocks or limiting bars, and the number of the first limiting structure and the second limiting structure is not limited, and may be 1, 2 or more.
Optionally, in a specific implementation scenario, for convenience of installation and operation, the apparatus further includes a first installation plate 224 connected to the first transmission component 223 for installing the first flat panel detector 21. The first mounting plate 224 is provided with a corresponding fixing component for fixing the first mounting plate 224 to the first transmission component 223, and the first flat panel detector 21 is fixed to the first mounting plate 224, so that the first flat panel detector 21 moves along the first guide component 222 under the driving force transmitted by the first transmission component 223. Therefore, the first mounting plate 224 makes the mounting process of the first flat panel detector 21 simple and fast.
Optionally, in a specific implementation scenario, in order to facilitate the first flat panel detector 21 to be installed on the first installation plate 224, a first installation position is provided on the first installation plate 224 and is used for installing the first flat panel detector 21, an installation reference mark is provided on the first installation position, and when the first flat panel detector 21 is installed, according to an indication of the installation reference mark, the first flat panel detector 21 can be installed more conveniently and quickly, so that time is saved.
Optionally, in a specific implementation scenario, for convenience of installation and operation, the apparatus further includes a second mounting plate 324, the second mounting plate 324 is connected to the second transmission assembly 323, and the second flat panel detector 32 moves on the rack 1 along the second guide assembly 322 under the driving force transmitted by the second transmission assembly 323. Therefore, the second mounting plate 324 enables the mounting process of the second flat panel detector 31 to be simple and fast.
Optionally, in a specific implementation scenario, in order to facilitate the installation of the second flat panel detector 31 on the second mounting plate, a second mounting position is provided on the second mounting plate, and is used for installing the second flat panel detector 31, and an installation reference mark is provided on the second mounting position, when the second flat panel detector 31 is installed, according to an indication of the installation reference mark, the second flat panel detector 31 can be installed more conveniently and quickly, so that time is saved.
Optionally, in a specific implementation scenario, one end of the second mounting plate 324 is connected to the second transmission assembly 323, and the other end is suspended and connected to the second flat panel detector 31, and the second flat panel detector 31 is moved on the rack 1 along the second guide assembly 322 under the driving force transmitted by the second transmission assembly 323. The second mounting plate 324 enables the mounting structure of the second flat panel detector 31 to be simple, occupies a small space, and saves cost.
Optionally, in a specific implementation scenario, the first flat panel detector 21, the first driving structure 22 and the controller 4 are connected by cables, in order to avoid damage of the cables due to radiation, when the first mounting plate 224 is provided with the first mounting location, the first mounting plate 224 is provided with a first radiation protection structure 2241, and the first radiation protection structure 2241 is disposed at a position other than the first mounting location. The shape and the installation position of the first radiation protection structure 2241 are not limited here as long as it can cover the cable, and may be, for example, L-shaped. The first radiation protection structure 2241 is made of a tungsten-copper alloy and the like, and the first radiation protection structure 2241 is not limited and can be used for radiation protection.
Optionally, in a specific implementation scenario, the second flat panel detector 31, the second driving structure 32 and the controller 4 are connected by cables, and in order to avoid damage of the cables due to radiation, when the second mounting plate 324 is provided with the second mounting location, the second mounting plate 324 is provided with a second radiation protection structure 3241, and the second radiation protection structure 3241 is provided at a position other than the second mounting location. The shape and the mounting position of the second radiation protection structure 3241 are not limited herein as long as the cable can be covered, and for example, the second radiation protection structure may be L-shaped. The second radiation protection structure 3241 is made of a material without limitation, and can protect against radiation, such as tungsten-copper alloy.
Optionally, in a specific implementation scenario, the apparatus further includes a braking assembly disposed on the first driving structure 22 for fixing a position of the first flat panel detector 21 moving on the first guiding assembly 222. When an operator controls the first transmission assembly 223 in the first driving structure 22 through the controller 4 to move the first flat panel detector 21 to a proper position, the controller 4 generates a control signal to activate the brake assembly, the brake assembly brakes the driving of the first transmission assembly 223 through the brake assembly to fix the first flat panel detector 21 at the current position, and the first flat panel detector does not move any more, and when the position of the first flat panel detector 21 needs to be moved, the controller 4 sends out a brake-free signal again, and the brake assembly stops braking, so that a fault caused by the movement of the first flat panel detector 21 is avoided.
In this embodiment, the braking component may be disposed on the first power structure 221, and when receiving a braking signal, the braking component brakes the first power structure 221, and when receiving no braking signal or receiving a signal that does not need braking, the braking component does not brake the first power structure 221, and does not affect the normal movement of the first flat panel detector 21. It should be noted that in other specific implementation scenarios, the braking assembly may be disposed at other positions to meet the use requirement.
Optionally, in a specific implementation scenario, a first weight reduction structure 225 is disposed on the first driving structure 22, and the overall weight of the radiotherapy apparatus is reduced by the first weight reduction structure 225, which is more convenient during installation and transportation. The first weight-reducing structure 225 may be a weight-reducing hole, a weight-reducing slot, or the like, and the first weight-reducing structure 225 may be disposed on the first mounting plate 224, or may be disposed on other sub-components of the first driving structure 22.
Optionally, in a specific implementation scenario, a second weight reduction structure 325 is disposed on the first driving structure 32, and the second weight reduction structure 325 reduces the overall weight of the radiotherapy apparatus, so that the radiotherapy apparatus is more convenient to mount and carry. The specific form of the second weight-reducing structure 325 is not limited, and may be a weight-reducing hole, a weight-reducing slot, or the like, and the second weight-reducing structure 325 may be disposed on the second mounting plate 324, or may be disposed on other sub-components of the second driving structure 32.
Of course, it is not necessary for any particular embodiment of the present application to achieve all of the above advantages at the same time.
The expressions "first", "second", "said first" or "said second" as used in various embodiments of the present application may modify various components irrespective of order and/or importance, but these expressions do not limit the respective components. The foregoing description is only for the purpose of distinguishing elements from other elements. For example, the first user equipment and the second user equipment represent different user equipment, although both are user equipment. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.
While the preferred embodiments of the present application have been described, additional variations and modifications will occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including all such alterations and modifications as fall within the true spirit and scope of the application. It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. An image guidance apparatus in a radiotherapy system, comprising:
the device comprises a frame, a cone beam computer tomography device, an electronic field imaging device and a controller, wherein the cone beam computer tomography device, the electronic field imaging device and the controller are arranged on the frame;
the cone beam computed tomography device comprises a first flat panel detector and a first driving structure, wherein the first driving structure is respectively connected with the rack and the first flat panel detector and is used for driving the first flat panel detector to move on the rack;
the electronic radiation field imaging device comprises a second flat panel detector and a second driving structure, and the second driving structure is respectively connected with the rack and the second flat panel detector and is used for driving the second flat panel detector to move on the rack;
the controller is respectively connected with the first driving structure and the second driving structure and is used for respectively controlling the movement of the first flat panel detector and the second flat panel detector by using the same mechanical control mechanism.
2. The image-guided apparatus of claim 1, wherein the first driving structure comprises a first power structure and the second driving structure comprises a second power structure, and the first power structure is of the same type as the power structure.
3. The image-guided apparatus in a radiotherapy system of claim 2, wherein the first driving structure further comprises: the first guide assembly and the first transmission assembly; the second drive structure further comprises: a second guide component and a second transmission component,
the first guide assembly is used for movably guiding the first flat panel detector; the first transmission assembly is used for driving the first flat panel detector to move along the first guide assembly according to the driving force of the first power structure; and/or the presence of a gas in the gas,
the second guide assembly is used for guiding the second flat panel detector to move along the rack; the second transmission assembly is used for driving the second flat panel detector to move on the rack along the second guide assembly according to the driving force of the second power structure.
4. The image guidance apparatus in a radiotherapy system according to claim 3,
the first guide assembly is provided with a first limiting structure for limiting the moving range of the first flat panel detector; and/or the presence of a gas in the gas,
and the second guide assembly is provided with a second limiting structure for limiting the moving range of the second flat panel detector.
5. The image guidance apparatus in a radiotherapy system according to claim 3,
the equipment also comprises a first mounting plate for mounting the first flat panel detector, wherein the first mounting plate is connected with the first transmission assembly, so that the first flat panel detector moves along the first guide assembly under the driving force transmitted by the first transmission assembly; and/or
The equipment also comprises a second mounting plate used for mounting the second flat panel detector, the second mounting plate is connected with the second transmission assembly, and the second flat panel detector moves on the rack along the second guide assembly under the driving force transmitted by the second transmission assembly.
6. The image guiding apparatus in a radiotherapy system according to claim 5,
the first mounting plate is provided with a first mounting position for mounting the first flat panel detector; and/or the presence of a gas in the gas,
and a second mounting position is arranged on the second mounting plate and used for mounting the second flat panel detector.
7. The image guiding apparatus in a radiotherapy system according to claim 5,
one end of the second mounting plate is connected with the second transmission assembly, the other end of the second mounting plate is suspended and connected with the second flat panel detector, and the second flat panel detector is driven to move on the rack along the second guide assembly under the driving force transmitted by the second transmission assembly.
8. The image guiding apparatus in a radiotherapy system according to claim 6,
a first radiation protection structure is arranged on the first mounting plate and is arranged at a position outside the first mounting position; and/or
And a second radiation protection structure is arranged on the second mounting plate and is arranged at a position outside the second mounting position.
9. The image guiding apparatus in a radiotherapy system according to claim 5,
the first driving structure further comprises a brake assembly for fixing the position of the first flat panel detector moving on the first guide assembly.
10. The image guidance apparatus in a radiotherapy system according to any one of claims 1 to 9,
a first weight reduction structure is arranged on the first driving structure; and/or the presence of a gas in the gas,
and a second weight reduction structure is arranged on the second driving structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929869.9U CN211561616U (en) | 2019-11-09 | 2019-11-09 | Image guiding device in radiotherapy system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929869.9U CN211561616U (en) | 2019-11-09 | 2019-11-09 | Image guiding device in radiotherapy system |
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| CN211561616U true CN211561616U (en) | 2020-09-25 |
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| CN201921929869.9U Active CN211561616U (en) | 2019-11-09 | 2019-11-09 | Image guiding device in radiotherapy system |
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