Radiation transmission devices and computer-readable storage media

Abstract

In the field of medical device technology, we provide, in particular, radiation transmission devices and computer-readable storage media. [Solution] The radiation transmission device 10 includes a radiation head 11 used to transmit a radiation beam and rotatable around a rotation axis, and a moving mechanism 12 connected to the radiation head, wherein the radiation head is movable along the rotation axis by the moving mechanism and is also movable along the direction of the radiation beam by the moving mechanism.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a radiation transmission device and a computer-readable storage medium.

Background Art

[0002] With the continuous progress of industrial technology, radiation transmission (e.g., radiation therapy, radiation processing, radiation verification) devices have also experienced a major transformation from conventional types to intelligent and precise types.

[0003] In related technologies, during use, a radiation transmission device mainly performs radiation transmission operations on the region of interest of the radiation transmission target by rotating coplanarly around the radiation transmission target.

[0004] However, there is a problem that the radiation transmission device in related technologies lacks flexibility during radiation transmission.

Summary of the Invention

Problems to be Solved by the Invention

[0005] This application provides a radiation transmission device and a computer-readable storage medium.

Means for Solving the Problems

[0006] In a first aspect, this application provides a radiation transmission device, which includes a radiation head used for transmitting a beam and rotatable around a rotation axis, and a moving mechanism connected to the radiation head, wherein the radiation head is movable along the rotation axis direction by the moving mechanism and is also movable along the beam direction by the moving mechanism.

[0007] In one embodiment, the radiation transmission device further includes a first imaging source and a first imaging detector corresponding to the first imaging source, and a second imaging source and a second imaging detector corresponding to the second imaging source.

[0008] In one embodiment, the imaging mode of the first imaging source is different from that of the second imaging source.

[0009] In one embodiment, the imaging mode of the first imaging source includes a single exposure mode, and the imaging mode of the second imaging source includes a continuous exposure mode.

[0010] In one embodiment, the imaging modality of the first imaging source is different from that of the second imaging source.

[0011] In one embodiment, the imaging modality of the first imaging source includes computed tomography, and the imaging modality of the second imaging source includes digital radiography.

[0012] In one embodiment, the type of imaging beam of the first imaging source is different from that of the second imaging source.

[0013] In one embodiment, the type of the first imaging detector is different from that of the second imaging detector.

[0014] In one embodiment, the first type of imaging detector and the second type of imaging detector include panel detectors.

[0015] In one embodiment, the size of the first imaging detector is different from that of the second imaging detector.

[0016] In one embodiment, the moving mechanism includes a first moving passage and a second moving passage, the radiating head is installed in the first moving passage, and the first moving passage is installed in the second moving passage. A first movement path is used to guide the movement of the radiation head along the target direction, and a second movement path is used to guide the movement of the radiation head along directions other than the target direction, where the target direction includes the rotation axis direction or the beam direction.

[0017] In one embodiment, a first travel path includes a first guide rail, a second travel path includes a second guide rail, the first guide rail is movably mounted on the second guide rail, a radiation head is movably mounted on the first guide rail, the second guide rail is used to guide movement along the rotation axis direction of the first guide rail, and the first guide rail is used to guide movement along the beam direction of the radiation head.

[0018] In one embodiment, the moving mechanism includes a swingable frame and a third guide rail, the third guide rail being mounted on the swingable frame, the radiation head being movably mounted on the third guide rail, the swingable frame being used to drive swinging along the rotation axis direction of the third guide rail, and the third guide rail being used to guide the movement of the radiation head along the beam direction. In one embodiment, the radiation transmission device further includes a radiation detector, the radiation detector being mounted on a swingable frame and positioned opposite the radiation head.

[0019] In one embodiment, the radiation head is When moved to a first position along the beam direction, a beam having a first energy is transmitted. When moving along the beam direction to a second position different from the first position, a beam having a second energy different from the first energy is transmitted. It is configured in this way.

[0020] In one embodiment, a radiation head is used to transmit a beam so as to focus it onto a region of interest on the axis of rotation, where the distance between the first position and the region of interest is smaller than the distance between the second position and the region of interest, and the first energy is smaller than the second energy.

[0021] In one embodiment, the radiation head includes a multi-leaf collimator, the multi-leaf collimator includes at least two layers of leaf groups, and the at least two layers of leaf groups are configured to be movable independently of each other.

[0022] In one embodiment, the radiation head When at least one layer of the at least two layers of leaf groups moves to a first position along the beam direction, the beam is transmitted to a first target location in the region of interest. When at least one layer of the at least two layers of leaf groups moves to a second position different from the first position along the beam direction, the beam is transmitted to a second target location different from the first target location in the region of interest. It is configured as such.

[0023] In one embodiment, the radiation head When at least one layer of the at least two layers of leaf groups moves to a third position along the beam direction, a beam having a first energy is transmitted. When at least one layer of the at least two layers of leaf groups moves to a fourth position different from the third position along the beam direction, a beam having a second energy different from the first energy is transmitted. It is configured as such.

[0024] In a second aspect, the present application provides a computer-readable storage medium, and a computer program for realizing radiation transmission by the radiation transmission device according to any one of the first aspects is stored in the computer-readable storage medium, which, when executed by a processor, realizes radiation transmission by the radiation transmission device according to any one of the first aspects.

Brief Description of the Drawings

[0025] To provide a clearer description of the embodiments of this application or related technologies, the drawings used to describe the embodiments of this application or related technologies are briefly introduced below. The drawings described below represent only a few embodiments of this application, and it will be apparent to those skilled in the art that other related drawings can be obtained based on these drawings without requiring any creative work. [Figure 1] This is a schematic diagram of the configuration of a radiation transmission device in one embodiment of the present invention. [Figure 2] This is a schematic diagram of the configuration of a radiation transmission device in one embodiment of the present invention. [Figure 3A] This is a schematic diagram of the configuration of a radiation transmission device in one embodiment of the present invention. [Figure 3B] This is a schematic diagram of the configuration of a radiation transmission device in one embodiment of the present invention. [Figure 4] This is a schematic diagram of the configuration of the radiation head in one embodiment of the present invention. [Figure 5] A schematic diagram of the radiation transmission system in one embodiment of the present invention. [Figure 6] This is a block diagram showing the configuration of the control device for the radiation transmission device in one embodiment of the present invention. [Figure 7] This is an internal configuration diagram of the controller in one embodiment of the present invention. [Modes for carrying out the invention]

[0026] The technical modes in the embodiments of the present application will be described below clearly and completely with reference to the drawings of the embodiments, but it is clear that the embodiments described are only a selection of the embodiments of the present application, not all of them. All other embodiments that a person skilled in the art could obtain without creative work based on the embodiments of the present application are within the scope of the protection of the present application.

[0027] The part numbers in this text, such as "first," "second," etc., are merely for distinguishing the subject of description and do not have any order or technical meaning. Furthermore, unless otherwise specified, the terms "connection" and "linking" in this application include both direct and indirect connections (linking). In the description of this application, the orientations or positional relationships represented by terms such as "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," and "counterclockwise" are orientations or positional relationships shown based on the drawings and are merely for the purpose of simplifying the description of this application. They do not express or suggest that the devices or elements mentioned have a specific orientation, or must be configured and operate in a specific orientation, and therefore should not be understood as limitations on this application.

[0028] In this application, unless otherwise specified or limited, the position of the first feature "above" or "below" the second feature means that the first feature is in direct contact with the second feature, or that the first feature is indirectly in contact with the second feature through an intermediate mediator. Furthermore, the position of the first feature "above," "above," and "upper part" of the second feature means that the first feature is located directly above or diagonally above the second feature, or simply that the horizontal height of the first feature is greater than that of the second feature. The position of the first feature "below," "below," and "lower part" of the second feature means that the first feature is located directly below or diagonally below the second feature, or simply that the horizontal height of the first feature is lower than that of the second feature.

[0029] In the field of radiation transmission (e.g., radiation therapy, radiation processing, and radiation verification before radiation therapy), there is a need to flexibly achieve omnidirectional and multi-angle radiation to meet radiation requirements in different situations. In current radiation transmission device designs, the angle of the radiation head is fixed, and the multi-leaf collimator (MLC) in the radiation head is designed as a single layer. During use of the radiation transmission device, the fixed-angle radiation head can only rotate coplanar around the radiation target, and non-coplanar movement is impossible, meaning that current radiation transmission devices lack flexibility during radiation transmission. The leaf resolution of a single-layer MLC is usually 5 mm or more, making it difficult to achieve higher resolution dose control and a larger penumbra. While technologies such as EDGE can achieve a resolution of 2.5 mm, they cannot solve the problem of inter-leaf leakage and cannot protect healthy tissue. Furthermore, when treating the head and torso of the radiation target, it is not possible to meet the requirements of different locations.

[0030] This application provides a radiation transmission device, a system, a control method for a radiation transmission device, a controller, and a computer-readable storage medium, which can improve the flexibility of radiation transmission devices in radiation transmission. Of course, the technical modes provided by the embodiments of this application are not limited to solving the above-mentioned problems, but also have other technical effects, which can be specifically described in the following description of the embodiments. Next, the technical modes of this application will be introduced in detail.

[0031] In one embodiment, a radiation transmission device 10 is provided as shown in Figure 1. The radiation transmission device 10 is A radiation head 11 is used to transmit a beam and is rotatable around a rotation axis, Includes a moving mechanism 12 connected to the radiation head 11, In this configuration, the radiation head 11 is movable along the rotation axis by the movement mechanism 12, and is also movable along the beam direction by the movement mechanism 12.

[0032] To improve the flexibility of the radiation transmission device 10, the radiation head 11 of the radiation transmission device 10 needs to irradiate the region of interest of the radiation target 20 from different angles. The region of interest may be the area to be treated. To achieve this objective, a corresponding movement mechanism 12 is added to the conventional radiation transmission device 10 to assist the radiation head 11 in moving in different directions. The beam direction can refer to the linear direction from the radiation source of the radiation head 11 to the isocenter. The rotation axis of the radiation head 11 can refer to the geometric axis around which the radiation head 11 rotates, and is used to adjust the projection direction of the radiation beam to accurately cover the region of interest of the radiation target 20 while avoiding vital organs. The isocenter may be located on the rotation axis.

[0033] The radiation transmission device 10, including the moving mechanism 12 and the radiation head 11, has a hollow structure, and a support bed for supporting the radiation transmission target 20 may be installed in the diameter of the hole in the hollow structure. In this case, the longitudinal direction of the support bed may be parallel to the central axis direction of the diameter of the hole in the hollow structure. The radiation head 11 can irradiate a beam to different locations on the radiation transmission target 20 on the support bed along the longitudinal direction of the support bed. Different positions of the radiation head 11 in the beam direction can correspond to different distances between the radiation head 11 and the region of interest or location of the radiation transmission target 20. For example, the required radiation transmission distance differs for different locations. For example, in radiotherapy, it is possible to control the radiation head 11 to move closer to the region of interest in the patient's head, i.e., to reduce the distance and achieve radiation transmission to the region of interest. For a region of interest in the patient's torso (e.g., chest or abdomen), it is possible to control the radiation head 11 to move away from the region of interest, i.e., to increase the distance and achieve radiation transmission to the region of interest. This makes it possible to satisfy all radiation requirements for different locations by adjusting the position of the radiation head 11 in the beam direction.

[0034] The moving mechanism 12 may include a moving passage, which may be a guide rail of any kind, a pipe, etc. For example, the connecting member of the radiation head 11 is connected to a fitting groove of a guide rail and can move within the fitting groove. Alternatively, for example, the radiation head 11 can be installed to move within a pipe. The moving passage must satisfy the requirement that the radiation head 11 moves along the rotation axis and along the beam direction of the radiation head 11. Therefore, the moving passage may include two passages corresponding to the longitudinal direction of the support bed and the beam direction of the radiation head 11, respectively. By controlling the movement of the radiation head 11 in the two passages, movement along the rotation axis or the beam direction of the radiation head 11 can be achieved.

[0035] The radiation head 11 can be used to irradiate a region of interest of the radiation target 20 from different angles. The radiation head 11 may include an accelerating pipe, or the radiation head 11 may be connected to an accelerating pipe. The radiation head 11 may include elements such as a multi-leaf collimator 18. The accelerating pipe is used to accelerate beam particles / radiation particles (e.g., electrons emitted from the radiation head 11 to subsequently form an electron beam), or beam-generating particles (e.g., electrons that strike a target material to generate photons to form a photon beam). Alternatively, the accelerating pipe may be located outside the radiation head 11.

[0036] To adapt the beam output from the accelerating pipe for radiation transmission to different locations, the controller can control the acceleration parameters of the accelerating pipe. For example, by controlling the acceleration parameters, the radiation head 11 can output at least two energy levels of 7 MV or less, making it suitable for adverse reactions of the radiation transmission target 20 in radiation transmission.

[0037] In the entire beamline system, the multi-leaf collimator 18 may be installed downstream of the accelerating pipe. Radiation is formed by particles accelerated in the accelerating pipe or other particles generated from such particles, and after passing through the multi-leaf collimator 18, it is emitted from the radiation head 11 to form a beam. By changing the leaf positions of the multi-leaf collimator 18, the shape and size of the beam can be controlled, and the beam output from the radiation head 11 can be made to essentially match the shape of the region of interest of the radiation transmission target 20, ensuring radiation work only on the region of interest and eliminating or reducing the impact on tissues outside the region of interest.

[0038] Selectively, the radiation transmission device 10 may further include a controller. The radiation head 11 may be connected to the controller, for example, in a communicative manner. The radiation head 11 may be installed in or on the moving path of the moving mechanism 12.

[0039] The controller can be used to control the movement of the radiation head 11 along the longitudinal direction of the support bed for supporting the radiation transmission target 20 in the moving path, or along the beam direction of the radiation head 11. The beam direction refers to the direction of travel of the beam emitted from the radiation head 11, and may refer to, for example, the direction perpendicular to the beam exit plane of the radiation head 11, or the direction of the central axis of the beam. For illustrative purposes, the beam in this text may be any type of beam, such as a photon beam, electron beam, proton beam, or heavy ion beam. Depending on the different beam types, the configurations or components mentioned in this text can be adjusted accordingly, but for the sake of brevity, they are omitted here.

[0040] The controller may be communicatively connected to the support bed and controls the support bed to move parallel to its longitudinal direction and rotational direction. The radiation transmission target 20 may lie on the support bed along its longitudinal direction. When it is necessary to perform radiation transmission work on the radiation transmission target 20, the controller can control at least a portion of the support bed to pass through the hole diameter of the hollow structure of the radiation transmission device 10 and fix it in the target position. When the radiation transmission work on the radiation transmission target 20 is complete, the controller can control the support bed to retract from the target position and move away from the hollow structure.

[0041] The controller can be installed in any position as long as its control function can be realized. The controller may be connected to the radiation head 11 in a communicative manner (wired or wireless) to control the movement of the radiation head 11. The controller may be, but is not limited to, a pulse width modulation (PWM) control chip, an integrated circuit (IC), a voltage reference source, a phase-locked loop (PLL) control chip, a current sensing chip, or a metal-oxide-semiconductor field-effect transistor (MOSFET) drive chip.

[0042] The radiation transmission device 10 includes a radiation head 11 used for transmitting a beam and rotatable around a rotation axis, and a moving mechanism 12 connected to the radiation head 11, wherein the radiation head 11 is movable along the rotation axis by the moving mechanism 12 and also movable along the beam direction by the moving mechanism 12. By connecting the radiation head 11 to the moving mechanism 12, the radiation head 11 can move not only along the rotation axis by the movement of the moving mechanism 12, but also along the beam direction. In other words, the radiation transmission device can realize radiation transmission work from different directions and different angles, improving the flexibility of radiation transmission work.

[0043] To ensure the accuracy of the radiation transmission operation, the radiation transmission device 10 may further include an imaging source and a corresponding imaging detector for imaging the region of interest during the radiation transmission operation. In one embodiment, as shown in Figure 2, the radiation transmission device 10 includes a first imaging source 13, a first imaging detector 14 corresponding to the first imaging source 13, a second imaging source 15, and a second imaging detector 16 corresponding to the second imaging source 15. However, the radiation transmission device 10 is not limited to this and may include only one imaging source and a corresponding imaging detector. The imaging mode or imaging modality of the first imaging source 13 may be the same as or different from that of the second imaging source 15. The type and / or size of the first imaging detector 14 may be the same as or different from that of the second imaging detector 16.

[0044] In the embodiment of the present invention, each imaging source and the corresponding imaging detector are installed facing each other on the support structure of the radiation transmission device 10, and the imaging beam generated by each imaging source can be transmitted through the radiation transmission target 20 and projected onto the corresponding imaging detector.

[0045] To ensure imaging accuracy, it is necessary to image the region of interest of the radiation transmission target 20 from different angles. Therefore, the support configuration of the radiation transmission device 10 may include at least two imaging sources and two imaging detectors, with each imaging source and corresponding imaging detector positioned relative to the region of interest. That is, the imaging beam generated by the imaging source can pass through the region of interest of the radiation transmission target 20 and be projected onto the imaging detector.

[0046] Each imaging source may emit one type of imaging beam or different types of imaging beams. That is, the imaging mode or imaging modality of one of the two imaging sources may be the same as or different from that of the other imaging source. For example, the first imaging source 13 may be a computed tomography (CT) source, and the second imaging source 15 may be a digital radiography (DR) source, and the two have different imaging modalities. As another example, the first imaging source 13 may be a cone beam computed tomography (CBCT) source, and the second imaging source 15 may be a fan beam computed tomography (FBCT) source. As yet another example, the first imaging source 13 and the second imaging source 15 may both be digital radiography (DR) imaging sources, but the energies and / or magnitudes of the imaging beams of the two imaging sources may be different, i.e., they have different imaging modes. For example, the imaging sources may include X-ray sources (e.g., tubes), gamma-ray sources, etc. The imaging beam can refer to a radiation beam for imaging a region of interest of the radiation transmission target 20. Different types of imaging beams may be imaging beams having different energies, imaging beams having different shapes, or different types of imaging beams. Selectively, different types of imaging beams may include conical imaging beams and fan imaging beams. Alternatively, different types of imaging beams may include X-rays, gamma rays, and / or neutron beams, etc. The embodiments of the present application are not limited thereto.

[0047] The two imaging detectors are used to receive imaging beams that originate from their respective imaging sources and pass through the radiation transmission target 20. For example, the imaging detectors may be amorphous selenium detectors, amorphous silicon detectors, panel detectors, or arc detectors. Each imaging detector may contain multiple array units or pixels, and their shape may be square, rectangular, arc-shaped, or other shapes. The type and / or size of each imaging detector may be different or the same.

[0048] The imaging source and imaging detector may be fixedly connected to the support structure of the radiation transmission device 10. For example, the fixed connection may be welded, riveted, adhesive, bolted, hinged, etc., and may be detachable or non-detachable, or movable or fixed.

[0049] Furthermore, the first imaging source 13 and the second imaging source 15 are installed on either side of the axis in which the radiation transmission target 20 is located, or both are installed on either side of the axis in which the radiation transmission target 20 is located. By providing the two imaging sources on either side of the axis in which the radiation transmission target 20 is located, or on the same side, it is ensured that different imaging beams are irradiated from different angles, allowing for more comprehensive imaging of the region of interest of the radiation transmission target 20 during the radiation transmission operation.

[0050] For example, with the radiation transmission target 20 on the support bed as the boundary line, the first imaging source 13 may be fixedly installed at the upper left position of the axis where the radiation transmission target 20 is located (for example, the axis of rotation around which the radiation head 11 rotates), and the second imaging source 15 may be installed at the lower left position of the axis where the radiation transmission target 20 is located. In this case, the imaging detector corresponding to the first imaging source 13 is installed at the lower right position of the axis where the radiation transmission target 20 is located. The imaging detector corresponding to the second imaging source 15 is installed at the upper right position of the axis where the radiation transmission target 20 is located.

[0051] Alternatively, the first imaging source 13 may be fixedly installed at the upper left position of the axis where the radiation transmission target 20 is located (for example, the axis of rotation around which the radiation head 11 rotates), and the second imaging source 15 may be installed at the upper right position of the axis where the radiation transmission target 20 is located. In this case, the imaging detector corresponding to the first imaging source 13 is installed at the lower right position of the axis where the radiation transmission target 20 is located, and the imaging detector corresponding to the second imaging source 15 is installed at the lower left position of the axis where the radiation transmission target 20 is located.

[0052] The radiation transmission device 10 described above further includes a first imaging source 13, a first imaging detector 14 corresponding to the first imaging source 13, a second imaging source 15, and a second imaging detector 16 corresponding to the second imaging source 15. The imaging mode or imaging modality of the first imaging source 13 is different from that of the second imaging source 15. The type and / or size of the first imaging detector 14 is different from that of the second imaging detector 16. The radiation head 11 may be configured to perform radiation transmission based on a first imaging result generated by the first imaging detector and a second imaging result generated by the second imaging detector, and the two imaging sources and two imaging detectors are positioned opposite each other on the radiation transmission device 10 so that the region of interest of the radiation transmission target 20 in the radiation transmission operation can be imaged in order to accurately perform the radiation transmission operation.

[0053] In some examples, the radiation transmission device 10 may include a first imaging system including a first imaging source 13 and a first imaging detector 14 corresponding to the first imaging source 13, and a second imaging system including a second imaging source 15 and a second imaging detector 16 corresponding to the second imaging source 15. Both the first and second imaging systems may be DR (Digital Radiography) imaging systems. For example, the first imaging source 13 and the second imaging source 15 may each include a spherical tube. The first imaging source 13 and the second imaging source 15 may be located on the same side or both sides of the radiation head 11. The imaging mode of the first imaging source may include a single-exposure mode, and the first imaging detector 14 may receive the imaging beam of the spherical tube of the first imaging source 13 in single-exposure mode, and the first imaging detector 14 may be a panel detector or an arc detector aligned with the first imaging source 13. The imaging mode of the second imaging source 15 may include a continuous exposure mode, and the second imaging detector 16 may receive the imaging beam of the second imaging source 15 in continuous exposure mode. The second imaging detector 16 may be a panel detector or an arc detector that aligns with the second imaging source 15. By configuring a dual DR tube imaging system including the first and second imaging systems, motion tracking of the region of interest and real-time adjustment of the beam by selective radiation head can be achieved, significantly improving the real-time accuracy of treatment.

[0054] To enable movement of the radiation head 11 in the longitudinal direction of the support bed and in the beam direction of the radiation head 11, the movement mechanism 12 may be configured as two movement paths, each representing two different intersecting movement trajectories, and the movement trajectories may be straight lines or arcs.

[0055] In one embodiment, the above-described movement mechanism 12 includes a first movement path and a second movement path, and the radiating head 11 may be installed in the first movement path, and the first movement path may be used to guide the movement of the radiating head 11. Alternatively, the first movement path may be installed in the second movement path, and the second movement path may be used to guide the movement of the first movement path. The second movement path, in cooperation with the first movement path, together guides the movement of the radiating head 11, so that the radiating head 11 can acquire two degrees of freedom of motion along two intersecting different movement trajectories.

[0056] In some embodiments, the radiation head 11 is movable along the target direction by a first movement path, and is also movable along directions other than the target direction by a second movement path. The target direction includes the rotation axis direction or the beam direction.

[0057] In some specific embodiments, the first travel path includes a first guide rail 121, and the second travel path includes a second guide rail 122. The first guide rail 121 is movably mounted on the second guide rail 122. The first guide rail 121 is connected to the radiation head 11.

[0058] Specifically, the first guide rail 121 can guide the movement of the radiation head 11 along the axis of rotation of the radiation head 11, and the second guide rail 122 can guide the movement of the first guide rail 121 along the beam direction so as to move the radiation head 11 along the first guide rail 121 along the beam direction (not shown).

[0059] Specifically, as shown in Figure 3A, the first guide rail 121 can guide the movement of the radiation head 11 along the beam direction (direction D1 in Figure 3A). The second guide rail 122 can guide the movement of the radiation head 11 along the rotation axis direction (direction D2 in Figure 3A) of the first guide rail 121, so as to move the radiation head 11 along the rotation axis direction along the first guide rail 121.

[0060] Specifically, as shown in Figure 3B, the first guide rail 121 can guide the movement of the radiation head 11 along the beam direction (direction D1 in Figure 3B). The second guide rail 122 can guide the movement of the first guide rail 121 along the other direction, so as to move the radiation head 11 along the first guide rail 121 along a direction other than the target direction (for example, direction D2 in Figure 3B, which is the direction of the arc-shaped trajectory).

[0061] The embodiments of this application do not particularly limit other directions. Other directions are not random directions, but specific trajectory directions perpendicular or complementary to a predetermined target direction, and the division of labor between the two movement paths gives the radiation head 11 multidimensional motion capabilities, which can meet the needs of radiation transmission to different locations and distances.

[0062] In the embodiment of the present application, the first and second moving passages correspond to the longitudinal direction of the support bed and the beam direction of the radiation head 11, respectively. Assuming that the first moving passage is the longitudinal direction of the support bed, the first moving passage may be installed parallel to the longitudinal direction of the support bed, and the second moving passage may be installed parallel to the beam direction of the radiation head 11. The first and second moving passages may be perpendicular to each other. For example, the first moving passage may be a horizontal passage installed parallel to the length of the support bed, and the second moving passage may be a vertical passage installed along the height of the support bed. Alternatively, the second moving passage may be set as an arc-shaped passage, and the first moving passage may be set as a vertical passage installed perpendicular to the tangent of the arc-shaped passage. Furthermore, the first moving passage is not limited to a specific implementation as a first guide rail 121, and the second moving passage is not limited to a specific implementation as a second guide rail 122. Depending on the requirements for the motion accuracy of the device, load capacity, and spatial layout, other adaptive transmission guide structures can be adopted, as long as the movement trajectories guided by the first and second moving passages intersect.

[0063] In some embodiments, the radiation head 11 is installed in a first travel path, and the first travel path is installed in a second travel path. Under the control of the controller, the second travel path may be held fixed relative to the first travel path while the radiation head 11 moves along the first travel path. Under the control of the controller, the first travel path may be held fixed relative to the radiation head 11 while the first travel path moves along the second travel path, that is, the first travel path and the radiation head 11 may move synchronously along the second travel path.

[0064] For example, assuming that the first travel passage is parallel to the longitudinal direction of the support bed and the second travel passage is parallel to the beam direction of the radiation head 11, the second travel passage may be located outside the first travel passage, and the first travel passage may be installed within the second travel passage via vertically sliding rollers. When the radiation head 11 moves along the beam direction, the first travel passage and the radiation head 11 can slide vertically synchronously via the rollers, thereby providing guidance for the movement of the radiation head 11 in the beam direction by the moving mechanism 12.

[0065] Assuming that the first travel passage is parallel to the beam direction of the radiation head 11 and the second travel passage is parallel to the longitudinal direction of the support bed, similarly, the second travel passage is installed outside the first travel passage and is fitted into the hollow structure of the first travel passage. When the radiation head 11 moves along the longitudinal direction of the support bed, the first travel passage and the radiation head 11 can slide synchronously in the second travel passage, thereby providing guidance for the movement of the radiation head 11 along the longitudinal direction of the support bed by the travel mechanism 12.

[0066] The travel lengths of the first and second travel paths may be determined based on the length of the support bed and a preset beam travel distance. The controller can control the radiation head 11 to move in two directions simultaneously, or it can control the radiation head 11 to move in either direction.

[0067] To ensure the proper operation of the radiation head 11 of the radiation transmission device 10 in the moving passage, a support structure may be installed in the radiation transmission device 10, and the second moving passage may be fixedly connected to the support structure of the radiation transmission device 10. The first moving passage, the second moving passage, and the radiation head 11 are supported by the support structure.

[0068] The above-described moving mechanism 12 includes a first moving passage and a second moving passage, with the radiation head 11 installed in the first moving passage and the first moving passage installed in the second moving passage. The radiation head 11 is movable along the target direction by the first moving passage, and is also movable along directions other than the target direction by the second moving passage. The target direction includes the rotation axis direction or the beam direction. The first moving passage includes a first guide rail 121, and the second moving passage includes a second guide rail 122. The first guide rail 121 is movably mounted on the second guide rail 122, and the radiation head 11 is movably mounted on the first guide rail 121. The second guide rail 122 is used to guide the movement of the first guide rail 121 along the rotation axis so as to move the radiation head 11 along the rotation axis, and the first guide rail 121 is used to guide the movement of the radiation head 11 along the beam direction. By providing two different moving passages, one in the rotation axis direction and the other in the beam direction, and by fitting the radiation head 11, the first moving passage and the second moving passage in stages, the movement of the radiation head 11 in both directions can be precisely controlled, increasing the degrees of freedom of the radiation head 11 in radiation work and improving the flexibility of radiation therapy.

[0069] The radiation head 11 can move not only along the longitudinal direction of the support bed or along the beam direction of the radiation head 11, but can also rotate coplane around the support bed. In one embodiment, continuing to refer to Figure 2, the moving mechanism 12 includes a swingable frame 123 and a third guide rail 124, the third guide rail 124 is mounted on the swingable frame 123, the radiation head 11 is movably mounted on the third guide rail, the swingable frame 123 is used to drive the swing of the third guide rail 124 along the rotation axis so as to swing the radiation head 11 along the rotation axis, the third guide rail 124 is used to guide the movement of the radiation head 11 along the beam direction.

[0070] The third guide rail 124 has a similar function to the first guide rail 121, and both are used to guide the movement of the radiation head 11 along the beam direction (direction D1 in Figure 2). Referring to Figure 2, the pivot axis may be the axis on which the pivotable frame 123 pivots. For example, the pivotable frame 123 is connected to an external structure via two opposing rolling bearings (not shown) on the left and right sides, and these two rolling bearings enable the pivoting or rotating, in which case the axis of rotation may be the linear direction formed by the connection of the central axes of the two rolling bearings. The pivot axis may be located in the cross-sectional direction of the radiation transmission device 10, and the axis of rotation may be the axis on which the radiation head 11 rotates around the radiation transmission target 20, for example, the longitudinal direction of the support bed. In some examples, the pivotable frame 123 can rotate or pivot 60 degrees around the pivot axis. In some examples, the swingable frame 123 can rotate or swing 360 degrees, or nearly 360 degrees, around the pivot axis.

[0071] In the embodiments of the present invention, the radiation head 11 can be mounted on a third guide rail 124, and the third guide rail 124 can be mounted on a swingable frame 123, which can coplane rotate with the radiation head 11 around the radiation transmission target 20. Coplane rotation as referred to herein essentially means rotating clockwise or counterclockwise around the longitudinal direction (e.g., the head-to-foot direction of the patient) of the radiation transmission target 20 or support bed. A controller can control the rotation of the swingable frame 123 and synchronize it with the rotation of the radiation head 11 based on the requirements of radiation transmission.

[0072] The pivotable frame 123 may be installed inside the support structure, and since the imaging sources (first imaging source 13, second imaging source 15) and imaging detectors (first imaging detector 14, second imaging detector 16) may both be installed in the support structure, the pivotable frame 123 may affect the imaging beams output from the imaging sources (first imaging source 13, second imaging source 15). Therefore, in one embodiment, the overlapping portion of the pivotable frame 123 is made into a perforated structure. As a result, the imaging beams generated by each imaging source (first imaging source 13, second imaging source 15) pass through the perforated positions and irradiate the region of interest of the radiation transmission target 20, making it possible to image the region of interest. By making the portion of the pivotable frame 123 that may overlap with the imaging beam generated by the imaging sources (first imaging source 13, second imaging source 15) a perforated structure, the imaging beam can pass through the perforated structure to reach the radiation transmission target 20, thereby avoiding any influence of the pivotable frame 123 on the imaging process.

[0073] In one embodiment, when the radiation head 11 moves along the beam direction to a first position, the radiation head 11 transmits a beam having a first energy. When the radiation head 11 moves along the beam direction to a second position different from the first position, the radiation head 11 transmits a beam having a second energy different from the first energy. The first and second positions can represent different radiation distances (treatment distances) so as to cover different volumes of regions of interest. This allows for control over the radiation of beams of different energies to the radiation target 20.

[0074] Simultaneously, the radiation head 11 can move closer to or further away from the region of interest along the third guide rail 124. For example, by controlling the position of the radiation head 11 on the third guide rail 124 to vary, the position of the radiation head 11 in the beam direction can be varied, the distance between the radiation head 11 and the region of interest can be varied, and the beam energy transmitted from the radiation head 11 to the region of interest can also be varied. Generally, the closer the distance between the radiation head 11 and the region of interest, the lower the beam energy transmitted to the region of interest, and the farther the distance between the radiation head 11 and the region of interest, the higher the beam energy transmitted to the region of interest. That is, if the distance between the first position and the region of interest is smaller than the distance between the second position and the region of interest, the first energy will be smaller than the second energy. The two energy levels have different SADs (Source to Axis Distance, which can refer to the distance from the source to the axis, or the distance from the radiation source to the center of the treatment area). The first energy level is suitable for fine irradiation of a small area of ​​interest, while the second energy level is suitable for uniform coverage of a large area of ​​interest.

[0075] The above-described moving mechanism 12 includes a swingable frame 123 and a third guide rail 124. The third guide rail 124 is mounted on the swingable frame 123, and the radiation head 11 is movably mounted on the third guide rail. The swingable frame 123 is used to drive the swing of the third guide rail 124 around the swing axis so as to swing the radiation head 11 along the third guide rail 124 along the swing axis. This allows the radiation head 11 to move in the swing axis direction. For example, the radiation head 11 can move in an arc shape or a circular trajectory on a plane where the swing axis is located and perpendicular to the swing axis. The third guide rail 124 is used to guide the movement of the radiation head 11 along the beam direction. By installing the swingable frame 123 on the radiation transmission device 10, the rotation of the swingable frame 123 is controlled to move or swing the radiation head 11 along the swing axis direction, improving the degree of freedom of movement of the radiation head 11.

[0076] In one embodiment, referring further to Figures 3A and 3B, the radiation transmission device 10 further includes a radiation detector 17, the radiation detector 17 being mounted on a swingable frame 123 and positioned opposite the radiation head 11.

[0077] In this context, the radiation detector 17 can refer to a dose detection device for detecting the dose that has passed through the region of interest. Selectively, the radiation detector 17 can achieve at least one of the following: movement along the beam direction, rotation around the beam direction, and movement on a plane perpendicular to the beam direction. For example, the radiation detector 17 may be mounted on a guide rail similar to the third guide rail 124 and on the opposite side of the radiation head 11, allowing for positional adjustment to match the movement of the radiation head 11. For example, if the radiation head 11 moves closer to the target object, the radiation detector 17 also moves closer to the radiation transmission target 20, and if the radiation head 11 moves away from the radiation transmission target 20, the radiation detector 17 also moves away from the radiation transmission target 20. However, it is not limited to this, and the radiation detector 17 may be fixedly mounted on the swingable frame 123.

[0078] The radiation detector 17 may further include an electron field device 171. The electron field device 171 may be mounted on a swingable frame 123 and positioned opposite the radiation head 11. For example, by positioning the electron field device 171 on the opposite side of the radiation head 11, it is ensured that the beam emitted from the radiation head 11 strikes the electron field device 171 after passing through the region of interest. By installing the radiation detector 17 on the radiation transmission device 10, it is possible to detect the dose transmitted through the region of interest and accurately estimate the absorbed dose in the region of interest based on the detected dose. It is also possible to shield the dose transmitted through the region of interest and avoid the impact on normal tissue due to dose leakage from the radiation transmission device 10. However, the radiation detector 17 may further include other types of detectors, such as dosimeters, instead or in addition.

[0079] Furthermore, a beam shield 172 may be installed below the electron irradiation field device 171, and the beam shield 172 is used to ensure that the main portion of the beam (or the primary beam) does not leak from the radiation transmission device 10. Both the electron irradiation field device 171 and the beam shield 172 are mounted on a swingable frame 123 to ensure synchronous rotation with the radiation head 11.

[0080] The electron irradiation field device 171 and the beam shield 172 may be installed as an integrated unit or as separate units. In either case, both the electron irradiation field device 171 and the beam shield 172 are installed on the opposite side of the radiation head 11.

[0081] When the radiation head 11 is positioned directly above the support bed, the electron field device 171 and the beam shield 172 are both positioned below the support bed. After the radiation head 11 emits the beam, the beam dose that has passed through the region of interest of the radiation target 20 hits the electron field device 171, with some of the dose passing through the edge of the electron field device 171 or passing through the electron field device 171 and hitting the beam shield 172. The dose or image identified via the electron field device 171 makes it possible to predict the dose to the region of interest of the radiation target 20. That is, the radiation head 11, the electron field device 171, and the beam shield 172 are held on the same straight line.

[0082] It is understandable that the area of ​​the beam shield 172 can be made larger than the area of ​​the electron irradiation field device 171 in order to ensure that the main portion of the beam (or the primary beam) does not leak from the radiation transmission device 10.

[0083] Furthermore, both the electron irradiation field device 171 and the beam shield 172 are perpendicular to the beam; that is, the radiation head 11 is perpendicular to the electron irradiation field device 171 and the beam shield 172, respectively. The electron irradiation field device 171 and the beam shield 172 may ensure their perpendicular relationship with the radiation head 11 by their respective transmission mechanisms along their respective arc-shaped trajectories. Alternatively, the radiation head 11, the electron irradiation field device 171, and the beam shield 172 may be integrated and the oscillation angle adjusted by a single axis to hold the radiation head 11 perpendicular to the electron irradiation field device 171 and the beam shield 172, respectively. By limiting the installation relationship of the radiation head 11, the electron irradiation field device 171, and the beam shield 172, the dose acceptance status of the radiation transmission target 20 in radiation transmission can be identified, leakage of the main part of the beam from the radiation transmission device 10 can be avoided, the thickness of the shielding room can be reduced, and hospital construction costs can be saved.

[0084] Next, the multi-leaf collimator 18 in the radiation head 11 will be described in detail. In one embodiment, as shown in Figure 4, the radiation head 11 includes a multi-leaf collimator, the multi-leaf collimator includes at least two leaf groups, and the at least two leaf groups are configured to move independently of each other. The multi-leaf collimator may be a multilayer multi-leaf collimator 18, and at least two leaf groups of the multilayer multi-leaf collimator 18 are movable independently of each other. The at least two leaf groups are arranged along the beam direction. The at least two leaf groups are movable simultaneously with the movement of the radiation head 11.

[0085] One or more layers of a leaf group are movable along the beam direction. At least two leaf groups of a multilayer multileaf collimator 18 are movable independently of each other, but are not limited to this, and other movements of one or more layers of a leaf group are also possible. For example, a radiation head 11 includes a multilayer multileaf collimator 18, in which at least two leaf groups of the multilayer multileaf collimator 18 are movable independently of each other.

[0086] Within this structure, the leaf groups can be used to adjust the beam direction, shape, and other parameters output from the radiation head 11, and the adjusted beam can be used for radiation work on the radiation target 20. Each layer of leaf groups may contain multiple leaves. Multiple leaves in a leaf group allow for control of parameters such as beam shape, field resolution, and dose rate.

[0087] The radiation head 11 may include a multi-layered multi-leaf collimator 18. For example, there may be at least two leaf groups installed at different horizontal heights. That is, the heights of the different leaf groups are different.

[0088] Taking the example of having two leaf groups, in one embodiment, continuing to refer to Figure 4, at least two layers of leaf groups include a first leaf group and a second leaf group, with the first leaf group and the second leaf group arranged in a staggered manner.

[0089] In this configuration, a leaf group consists of multiple narrow leaves. Selectively, the leaves within a leaf group may be configured to move independently, or each leaf may be configured to move collectively as a leaf group. When leaf groups are staggered, leaf groups farther from the accelerating pipe can shield radiation passing through the leaf spacing of leaf groups closer to the radiation source. Selectively, at least two layers of leaf groups in the multi-leaf collimator 18 can always be kept in a staggered configuration. Selectively, the multi-leaf collimator 18 can adjust the state of the leaf groups when the beam limiting device performs its beam limiting function, or when the multi-leaf collimator 18 has moved to a designated position. In either of the above cases, the multi-leaf collimator 18 can maintain or switch the leaf groups to a staggered configuration by driving at least two layers of leaf groups to move relatively.

[0090] In one embodiment, when at least one of the two leaf groups moves to a first position along the beam direction, the radiation head 11 transmits the beam to a first target location.

[0091] If at least one of the two leaf groups moves along the beam direction to a second position different from the first position, the radiation head 11 transmits the beam to the second target location, which is different from the first target location.

[0092] When at least one of the two leaf groups moves to a third position along the beam direction, the radiation head 11 transmits a beam having a first energy.

[0093] If at least one of the two leaf groups moves along the beam direction to a fourth position different from the third position, the radiation head 11 transmits a beam having a second energy different from the first energy.

[0094] Specifically, the multi-leaf collimator 18 can translate along the beam direction as a whole, moving closer to or further away from the radiation transmission target 20. Alternatively, the multi-leaf collimator 18 can rotate along the beam direction while simultaneously translating along the beam direction. For example, if the multi-leaf collimator 18 is initially perpendicular to the beam direction, and rotates along the beam direction, the angle between the multi-leaf collimator 18 and the beam direction will change accordingly.

[0095] The movement patterns of at least two leaf groups in the multi-leaf collimator 18 may be different or the same. For example, they may move synchronously along the beam direction, move sequentially, or move only some of the leaf groups. The movement of the leaf groups may be continuous or stepwise. The movement pattern of the leaf groups may be set by the user or determined based on the requirements of radiation transmission.

[0096] When the multi-leaf collimator 18 is positioned close to the radiation transmission target 20 as a whole, the irradiation field obtained by the beam outputting through the multi-leaf collimator 18 exhibits improved resolution, reduced penumbra, and a narrower range. Conversely, when the beam outputting through the multi-leaf collimator 18 exhibits reduced resolution, increased penumbra, and a wider range. As the multi-leaf collimator 18 rotates, the shape of the irradiation field obtained by the radiation outputting through the multi-leaf collimator 18 changes accordingly. By setting the multi-leaf collimator 18 to be movable along the beam direction, it is possible to control the radiation and change the parameters of the irradiation field, thereby meeting different radiation transmission requirements.

[0097] The radiation head 11 described above includes a multilayer multileaf collimator 18, and at least two leaf groups of the multilayer multileaf collimator 18 are movable independently of each other. The at least two leaf groups are arranged along the beam direction. The at least two leaf groups include a first leaf group and a second leaf group, with the first and second leaf groups offset from each other. The at least two leaf groups are movable simultaneously with the movement of the radiation head 11. When at least one of the at least two leaf groups is at a first position in the beam direction, the radiation head 11 transmits the beam to a first target location. When at least one of the at least two leaf groups is at a second position different from the first position in the beam direction, the radiation head 11 transmits the beam to a second target location different from the first target location. When at least one of the at least two leaf groups is at a third position in the beam direction, the radiation head 11 transmits a beam having a first energy. When at least one of the two leaf groups is in a fourth position different from the third position in the beam direction, the radiation head 11 transmits a beam having a second energy different from the first energy. By arranging the at least two leaf groups in a staggered manner in the height direction, beam leakage can be reduced, the impact of the leaked beam on normal tissue can be avoided, and safety during radiation transmission can be improved. In addition, since the relative positional relationship between the at least two leaf groups of the multi-leaf collimator 18 and the radiation transmission target 20 is maintained during the movement of the entire radiation head 11, a good alignment of the two leaf groups can be maintained.

[0098] In one embodiment, a radiation transmission system 30 is provided, as shown in Figure 5. The radiation transmission system 30 includes a radiation transmission device 10 and a computer device 40. The computer device 40 is used to receive commands triggered by the user and transmit them to a controller in the radiation transmission device 10. The controller is used to control the movement of the radiation head 11 in the moving mechanism 12 along the rotation axis or the beam direction of the radiation head, according to the commands.

[0099] In the embodiment of the present invention, the radiation transmission device 10 is operated within a dedicated workspace because a certain amount of radiation is present to the human body during radiation transmission. By connecting the radiation transmission device 10 to a computer device 40 installed outside the workspace, the user can trigger operation commands on the computer device 40. When these operation commands are transmitted to the controller of the radiation transmission device 10, the controller can control the movement of the radiation head 11 in the moving mechanism 12 along the rotation axis or the beam direction based on the commands.

[0100] The radiation transmission system 30 described above includes a radiation transmission device 10 and a computer device 40. The computer device 40 is used to receive commands triggered by the user and transmit them to a controller in the radiation transmission device 10. The controller is used to control the movement of the radiation head 11 in the mobile mechanism 12 along the rotation axis or the beam direction of the radiation head, according to the commands. The radiation transmission device 10 in the radiation transmission system 30 is equipped with a mobile mechanism 12, and the radiation head 11 is installed within the mobile mechanism 12. When the user triggers a command via the computer device 40, the controller, after receiving the command, can control the movement of the radiation transmission device 10 in the mobile mechanism 12, thereby enabling the radiation transmission device 10 to move along the rotation axis and the beam direction. In other words, the radiation transmission device 10 can perform radiation transmission work from different directions and angles, improving the flexibility of radiation transmission work.

[0101] Using the example that a radiation transmission device is a radiation transmission device, one exemplary embodiment provides a method for controlling a radiation transmission device, and explains how this method is applied to a controller, including the following:

[0102] In the embodiment of the present invention, the user triggers a command via a computer device connected to the controller, and the computer device transmits the command to the controller. After receiving the command, the controller controls the movement of the radiation head within the movement mechanism along the axis of rotation or along the beam direction of the radiation head.

[0103] In the control method for the radiation transmission device described above, the device is controlled to move the radiation head within the movement path in the direction of rotation or along the beam direction of the radiation head in response to commands triggered by the user. The controller can achieve movement of the radiation transmission device in the direction of rotation and along the beam direction of the radiation head by controlling the movement of the radiation transmission device in the movement mechanism. In other words, the radiation transmission device can perform radiation transmission work from different directions and angles, improving the flexibility of radiation transmission work.

[0104] What can be understood is that, although the steps in the flowcharts relating to each embodiment described above are shown sequentially as indicated by the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified in the text, there are no strict order restrictions on the execution of these steps, and they may be executed in other orders. Also, at least some of the steps in the flowchart relating to each embodiment described above may include multiple steps or stages. The execution of these steps or stages does not necessarily have to be completed at the same time, and they may be executed at different times. The execution order of these steps or stages is also not necessarily sequential, and they may be executed alternately or sequentially with other steps or at least some of the steps or stages in other steps.

[0105] Based on a similar inventive concept, embodiments of the present application further provide a control device for a radiation transmission device used to realize the above-described method for controlling a radiation transmission device. Since the means for solving the technical problems provided by this device are similar to the means for implementation described in the above-described method, specific limitations in the embodiments of one or more control devices for a radiation transmission device provided below can be found by referring to the limitations on the method for controlling a radiation transmission device in the preamble, and are therefore omitted here.

[0106] In an exemplary embodiment, as shown in Figure 6, a control device for a radiation transmission device is provided, which includes a control module 61, among which, The control module 61 is used to control the movement of the radiation head in the moving mechanism along the rotation axis or the beam direction of the radiation head in response to commands triggered by the user.

[0107] All or part of the modules in the control device for the radiation transmission device described above can be implemented by software, hardware, or a combination thereof. Each of the above modules may be built into a processor in a computer device in hardware form, or it may be independent of the computer device, or it may be stored in the memory of the computer device in software form so that it can be called by the processor to perform the operations corresponding to each of the above modules.

[0108] In an exemplary embodiment, a controller is provided, which may be a server, and its internal structure is shown in Figure 7. The controller includes a processor, memory, an input / output interface (I / O), and a communication interface. The processor, memory, and input / output interface are connected via a system bus, and the communication interface is connected to the system bus via the input / output interface. The processor of the controller is used to provide arithmetic and control functions. The memory of the controller includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for executing the operating system and computer programs in the non-volatile storage medium. The database of the controller is used to store data during radiation transmission by the radiation transmission device to a target object. The input / output interface of the controller is used for information exchange between the processor and external devices. The communication interface of the computer device is used to communicate with external terminals via a network connection. When the computer program is executed by the processor, it realizes a method for controlling the radiation transmission device.

[0109] A person skilled in the art will understand that the configuration shown in Figure 7 is merely a block diagram of the configuration of the part relating to the embodiments of the present application, and does not limit the computer devices to which the embodiments of the present application apply. A specific computer device may include more or fewer components than those shown, or these components may be combined, or have a different arrangement of components.

[0110] In an exemplary embodiment, a controller is provided which includes a memory storing a computer program and a processor. When the computer program is executed by the processor, the controller controls the radiation transmission device to transmit radiation to a target object.

[0111] In one embodiment, a computer-readable storage medium containing a computer program is provided, and when the computer program is executed by a processor, it controls the radiation transmission device to transmit radiation to a target object.

[0112] In one embodiment, a computer program product including a computer program is provided, and when the computer program is executed by a processor, it controls the radiation transmission device to transmit radiation to a target object.

[0113] Furthermore, user information (including, but not limited to, user device information and user personal information) and data (including, but not limited to, data to be analyzed, data to be stored, and data to be displayed) relating to this application are all information and data for which the user or relevant parties have given full permission, and the collection, use, and processing of the relevant data must comply with the relevant regulations.

[0114] Those skilled in the art will understand that all or part of the method flows of the embodiments described above can be implemented by instructing the relevant hardware with a computer program. The computer program may be stored in a non-volatile computer-readable storage medium, and when the computer program is executed, it may include the method flows of each embodiment of the embodiments described above. Any use of memory, database, or other medium in each embodiment provided by this application may include at least one of non-volatile memory and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. As a non-limiting explanation, RAM may take various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases relating to each embodiment provided in this application may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database.The processors relating to each embodiment provided in this application may be, but are not limited to, general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic circuits, artificial intelligence (AI) processors, and the like.

[0115] As long as they do not violate the laws of physics, the technical features of the above embodiments can be combined in any way, and for the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as there is no inconsistency in these combinations of technical features, they should all be considered to be within the scope described in this application.

[0116] The above embodiments provide specific and detailed representations of some embodiments of the present application, but should not be understood as limiting the scope of the patent. Those skilled in the art will be able to make some modifications and improvements without departing from the spirit of the present application, and these also fall within the scope of protection. Therefore, the scope of protection of the present application should be based on the attached claims. [Explanation of Symbols]

[0117] 10 Radiation transmission device, 11 Radiation head, 12 Moving mechanism, 121 First guide rail, 122 Second guide rail, 123 Swivel frame, 124 Third guide rail, 13 First imaging source, 14 First imaging detector, 15 Second imaging source, 16 Second imaging detector, 17 Radiation detector, 171 Electron irradiation field device, 172 Beam shield, 18 Multileaf collimator, 20 Radiation transmission target, 30 Radiation transmission system, 40 Computer device.

Claims

1. A radiation transmission device, It is used to transmit the beam and has a radiating head that is rotatable around the axis of rotation, Includes a moving mechanism connected to the radiating head, Among these, the radiation head is movable along the rotation axis by the moving mechanism and is also movable along the beam direction by the moving mechanism. Radiation transmission device.

2. The radiation transmission device further includes a first imaging source and a first imaging detector corresponding to the first imaging source, and a second imaging source and a second imaging detector corresponding to the second imaging source. The radiation transmission device according to claim 1.

3. The imaging mode of the first imaging source is different from that of the second imaging source. The radiation transmission device according to claim 2.

4. The imaging mode of the first imaging source includes a single exposure mode, and the imaging mode of the second imaging source includes a continuous exposure mode. The radiation transmission device according to claim 3.

5. The imaging modality of the first imaging source is different from that of the second imaging source. The radiation transmission device according to claim 2.

6. The imaging modality of the first imaging source includes computed tomography, and the imaging modality of the second imaging source includes digital radiography. The radiation transmission device according to claim 5.

7. The type of imaging beam of the first imaging source is different from that of the second imaging source. The radiation transmission device according to claim 2.

8. The first type of imaging detector is different from the second type of imaging detector. The radiation transmission device according to claim 2.

9. The first type of imaging detector and the second type of imaging detector include a panel detector. The radiation transmission device according to claim 2.

10. The size of the first imaging detector is different from that of the second imaging detector. The radiation transmission device according to claim 2.

11. The moving mechanism includes a first moving passage and a second moving passage, the radiation head is installed in the first moving passage, the first moving passage is installed in the second moving passage, the first moving passage is used to guide the radiation head to move along the target direction, and the second moving passage is used to guide the radiation head to move along directions other than the target direction, the target direction includes the rotation axis direction or the beam direction. The radiation transmission device according to claim 1.

12. The first moving passage includes a first guide rail, the second moving passage includes a second guide rail, the first guide rail is movably mounted on the second guide rail, the radiation head is movably mounted on the first guide rail, the second guide rail is used to guide the movement of the first guide rail along the rotation axis direction, and the first guide rail is used to guide the movement of the radiation head along the beam direction. The radiation transmission device according to claim 11.

13. The moving mechanism includes a swingable frame and a third guide rail, the third guide rail being mounted on the swingable frame, the radiation head being movably mounted on the third guide rail, the swingable frame being used to drive swinging along the rotation axis direction of the third guide rail, and the third guide rail being used to guide the movement of the radiation head along the beam direction. The radiation transmission device according to claim 1.

14. The radiation transmission device further includes a radiation detector, the radiation detector being mounted on the swingable frame and positioned opposite the radiation head. The radiation transmission device according to claim 13.

15. The aforementioned radiation head is When moved to the first position along the beam direction, a beam having a first energy is transmitted. When moving along the beam direction to a second position different from the first position, a beam having a second energy different from the first energy is transmitted. It is configured in such a way. The radiation transmission device according to claim 1.

16. The radiating head is used to transmit the beam so as to focus it onto a region of interest on the axis of rotation, wherein the distance between the first position and the region of interest is less than the distance between the second position and the region of interest, and the first energy is less than the second energy. The radiation transmission device according to claim 15.

17. The radiation head includes a multi-leaf collimator, the multi-leaf collimator includes at least two leaf groups, and the at least two leaf groups are configured to move independently of each other. The radiation transmission device according to claim 1.

18. The aforementioned radiation head is When at least one of the two leaf groups moves to a first position along the beam direction, the beam is transmitted to a first target location in the region of interest. When at least one of the two leaf groups moves along the beam direction to a second position different from the first position, the beam is transmitted to a second target location in the region of interest that is different from the first target location. It is configured in such a way. The radiation transmission device according to claim 17.

19. The aforementioned radiation head is When at least one of the two leaf groups moves to a third position along the beam direction, a beam having a first energy is transmitted. When at least one of the two leaf groups moves along the beam direction to a fourth position different from the third position, a beam having a second energy different from the first energy is transmitted. It is configured in such a way. The radiation transmission device according to claim 17.

20. A computer-readable storage medium that, when executed by a processor, stores a computer program that enables radiation transmission by a radiation transmission device. The aforementioned radiation transmission device, A radiating head used to transmit a beam and which is rotatable around a rotation axis, Includes a moving mechanism connected to the radiating head, The radiation head is movable along the rotation axis by the moving mechanism and is also movable along the beam direction by the moving mechanism. A computer-readable storage medium.

Images