Alignment method of helical fault radiotherapy system

Abstract

The invention discloses a helical fault radiotherapy system alignment method, and belongs to the technical field of helical fault radiotherapy systems. The alignment method comprises the following steps of: aligning and leveling a rack; on the basis of the leveled rack, alignment leveling operation is conducted on a first laser lamp located on the top of the rack; on the basis of the leveled rack and the leveled first laser lamp, alignment leveling operation is conducted on a second laser lamp located on the side portion of the rack; and based on the leveled first laser lamp, performing alignment leveling operation on the treatment bed. Therefore, the alignment and leveling operation of the helical fault radiotherapy system is simple, convenient and efficient, the dependence on personnel experience is small, the alignment precision is high, the later test difficulty is reduced, and the test efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of helical tomotherapy system, and particularly to a helical tomotherapy system alignment method. BACKGROUND

[0002] After the helical tomotherapy system is assembled, the overall performance of the helical tomotherapy system should be tested. Before the test, the relative positions of the gantry, the laser lamp and the treatment bed should be adjusted and aligned based on the absolute coordinate system and the virtual isocenter position, so as to make a good foundation for the subsequent test. If the relative positions of the three are not adjusted well, the difficulty of the later test will be increased, and the test efficiency will be reduced. SUMMARY

[0003] The present application aims to at least solve one of the technical problems in the related art.

[0004] Therefore, the embodiment of the present application provides a helical tomotherapy system alignment method.

[0005] The embodiment of the present application provides a helical tomotherapy system alignment method, which comprises: adjusting and leveling the gantry; based on the leveled gantry, adjusting and leveling a first laser lamp located at the top of the gantry; based on the leveled gantry and the first laser lamp, adjusting and leveling a second laser lamp located at the side of the gantry; based on the leveled first laser lamp, adjusting and leveling the treatment bed.

[0006] Illustratively, the bottom of the gantry is provided with a support part, and the gantry is provided with a first leveling surface, a second leveling surface and a machining surface. The second leveling surface is located on both sides of the first leveling surface and is perpendicular to the first leveling surface. The step of adjusting and leveling the gantry comprises: aligning the support part with the landmark of the space where the helical tomotherapy system is located; using an instrument to level the first leveling surface, the second leveling surface and the machining surface.

[0007] Illustratively, the gantry comprises a gantry body and a support frame connected below the gantry body. The support frame is provided with a wheel assembly, and the support part is a fixing plate of the wheel assembly. The first leveling surface is located at the top of the gantry body, the second leveling surface is located at the top of the support frame and is distributed on both sides of the first leveling surface along the X direction, and the machining surface of the gantry is located on the side of the gantry body facing the treatment bed.

[0008] For example, the frame is provided with virtual isocentric positioning lines and Y-machining lines. Based on the leveled frame, the step of aligning and leveling the first laser lamp located at the top of the frame includes: The instrument was used to align the first laser lamp in the Z direction. Align the first X-direction alignment line emitted by the first laser light with the virtual isocenter positioning line; Align the Y-direction alignment line emitted by the first laser with the Y-processing engraving line.

[0009] For example, a Y-shaped machining line is provided on the side of the frame near the first laser lamp, and a laser alignment arm is connected to the side of the frame near the first laser lamp. A virtual isocentric positioning line is provided on the laser alignment arm.

[0010] For example, an adjustable alignment device is installed on the frame, and the adjustable alignment device is provided with a first alignment line and a second alignment line spaced apart along the Y direction. The frame is provided with an X processing line. Based on the leveled frame and the first laser lamp, the step of performing an alignment and leveling operation on the second laser lamp located on the side of the frame includes: Align the alignment line in the Z direction emitted by the second laser with the alignment line in the Y direction emitted by the first laser. Align the second X-direction alignment line emitted by the second laser light with the first alignment line, the second alignment line, and the X-processing line.

[0011] For example, before the step of aligning the second X-direction alignment line emitted by the second laser lamp with the first alignment line, the second alignment line, and the X-processing line, the method further includes: The plane containing the first and second alignment lines is leveled, and the first and second alignment lines are set on the same plane.

[0012] For example, the adjustable alignment device includes a support frame, an adjustable bracket, an adjusting member, and a locking member. The support frame is connected to the frame. A first alignment mark and a second alignment mark are disposed on a plane of the adjusting bracket away from the support frame. The adjusting member is connected to the adjustable bracket and the support frame and is capable of adjusting the distance between the adjustable bracket and the support frame. The locking member is connected to the adjusting member to lock the support frame and the adjustable bracket. Among them, at least two sets of adjusting components are arranged at intervals along the Y direction.

[0013] For example, the adjustable alignment device is detachably connected to the frame via a first connecting bracket.

[0014] For example, a Y-alignment line is provided on the treatment bed. The steps of aligning and leveling the treatment bed based on the leveled first laser light include: Align the Y-aligned marking line with the Y-direction alignment line emitted by the first laser light; move an end of a head side of the treatment couch between the first laser lamp and the gantry; level the couch top of the treatment couch.

[0015] The spiral tomotherapy system alignment method provided by the embodiment of the present application can make the gantry be located at a suitable position in the space where the spiral tomotherapy system is located and make the gantry itself be in a leveled state, thereby providing a good basis for subsequent alignment leveling operations of the first laser lamp, the second laser lamp and the treatment couch. The first laser lamp located at the top of the gantry is subjected to an alignment leveling operation based on the leveled gantry; the second laser lamp located at the side of the gantry is subjected to an alignment leveling operation based on the leveled gantry and the first laser lamp; and the treatment couch is subjected to an alignment leveling operation based on the leveled first laser lamp. In this way, the leveling operations of the gantry, the first laser lamp, the second laser lamp and the treatment couch are located in the same coordinate system, so that the alignment leveling operation of the spiral tomotherapy system is simple, convenient and efficient, has a small dependence on personnel experience, is highly universal and has high alignment accuracy, which is conducive to reducing the difficulty of later testing and improving the testing efficiency.

[0016] The above description is only a summary of the technical solutions of the present application. In order to enable the technical means of the present application to be more clearly understood, the present application can be implemented in accordance with the contents of the specification, and in order to enable the above and other purposes, characteristics and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments, and are not meant to limit the present application. Moreover, the same reference numerals are used throughout the various drawings to represent the same or similar components. Among them: Figure 1 a schematic flow chart of the spiral tomotherapy system alignment method provided by the embodiment of the present application is shown; Figure 2 a schematic structural view of the spiral tomotherapy system from one perspective provided by the embodiment of the present application is shown; Figure 3 a schematic structural view of the spiral tomotherapy system from another perspective provided by the embodiment of the present application is shown; Figure 4 a schematic structural view of the spiral tomotherapy system from yet another perspective provided by the embodiment of the present application is shown; Figure 5 a partial structural schematic view of the spiral tomotherapy system provided by the embodiment of the present application is shown.

[0018] Among them,Figures 2 to 5 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100 Frame, 101 First Adjustment Plane, 102 Second Adjustment Plane, 103 Machining Surface, 104 Virtual Isocentric Positioning Marking, 105 Y Machining Marking, 106 X Machining Marking, 110 Support Part, 120 Frame Body, 130 Support Frame, 140 Laser Alignment Arm, 200 First Laser Lamp, 201 First X-Direction Alignment Line, 202 Y-Direction Alignment Line, 300 Second Laser Lamp, 301 Z-Direction Alignment Line, 302 Second X-Direction Alignment Line, 400 Treatment Bed, 401 Y-Alignment Marking, 500 Adjustable Alignment Device, 501 First Alignment Marking, 502 Second Alignment Marking, 510 Bearing Frame, 520 Adjustable Support, 530 Adjusting Component, 541 Screw, 542 Locking Nut, 600 First Connecting Frame, 700 Second Connecting Frame, 710 First Frame Body, 720 Second Frame Body. Detailed Implementation

[0019] The accompanying drawings and specific embodiments provide a further detailed description of this application. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0021] The embodiments of this application, such as Figure 1 As shown, an alignment method for a helical tomotherapy system is provided. Wherein, as... Figure 2 As shown, the helical tomotherapy system includes a gantry 100, a first laser lamp 200, a second laser lamp 300, and a treatment bed 400. The first laser lamp is located at the top of the gantry 100, while the second laser lamp 300 and the treatment bed 400 are located on opposite sides of the gantry 100. Specifically, the first laser lamp 200 can be a cooled laser lamp. Specifically, in the X-direction... Figure 2 As shown by the arrow X in the diagram, the Y direction is as follows: Figure 2 As shown by the arrow Y in the diagram, the Z direction is as follows: Figure 2 As indicated by arrow Z in the diagram.

[0022] Among them, such as Figure 1 As shown, the alignment method for the helical tomotherapy system includes: Step S010: Perform alignment and leveling operations on the frame; Step S020: Based on the leveled rack, perform alignment and leveling operations on the first laser light located at the top of the rack; Step S030: based on the leveled gantry and the first laser lamp, the second laser lamp located at the side of the gantry is leveled and aligned; Step S040: based on the leveled first laser lamp, the treatment bed is leveled and aligned.

[0023] The alignment method of the helical tomotherapy system provided in the embodiments of the present application can make the gantry 100 located at a suitable position in the space where the helical tomotherapy system is located and make the gantry 100 in a leveled state, thereby providing a good basis for the subsequent leveling and alignment of the first laser lamp 200, the second laser lamp 300 and the treatment bed 400. The leveling and alignment of the first laser lamp 200 located at the top of the gantry 100 is performed based on the leveled gantry 100; the leveling and alignment of the second laser lamp 300 located at the side of the gantry 100 is performed based on the leveled gantry 100 and the first laser lamp 200; and the leveling and alignment of the treatment bed 400 is performed based on the leveled first laser lamp 200. In this way, the leveling and alignment of the gantry 100, the first laser lamp 200, the second laser lamp 300 and the treatment bed 400 can be located in the same coordinate system, so that the alignment and leveling operation of the helical tomotherapy system is simple, convenient and efficient, has low dependence on personnel experience, is highly universal and has high alignment accuracy, which is conducive to reducing the difficulty of later testing and improving the testing efficiency.

[0024] As shown in Figure 2 and Figure 3 In some possible implemented embodiments provided in the present application, the bottom of the gantry 100 is provided with a support part 110, and the gantry 100 is provided with a first leveling surface 101, a second leveling surface 102 and a processing surface 103. The second leveling surface 102 is located on both sides of the first leveling surface 101 and is perpendicular to the first leveling surface 101. The steps of leveling and aligning the gantry 100 include: aligning the support part 110 with the landmark in the space where the helical tomotherapy system is located; leveling the first leveling surface 101, the second leveling surface 102 and the processing surface 103 by using an instrument.

[0025] The embodiments provide a specific scheme for leveling and aligning the gantry 100. Generally, the helical tomotherapy system performs the alignment and leveling operation in a test room, that is, the space where the helical tomotherapy system is located can be the test room. The test room is provided with a landmark in advance. The support part 110 of the gantry 100 is aligned with the landmark in the test room to preliminarily position the gantry 100, and the gantry 100 is fixed at a suitable position in the test room. Then, the first leveling surface 101, the second leveling surface 102 and the processing surface 103 of the gantry 100 are leveled by using an instrument to complete the alignment and leveling operation of the gantry 100.

[0026] Specifically, the instrument can be a level, and the first leveling plane 101 of the rack 100 and the second leveling plane 102 located on both sides of the first leveling plane 101 can be leveled by using the level respectively, and the machining surface 103 can be rotated to be horizontal by using the level, and the machining surface 103 can be leveled by using the level. It can be understood that the first leveling plane 101 and the second leveling plane 102 located on both sides of the first leveling plane 101 can also be leveled by using other instruments.

[0027] As shown in Figure 2 and Figure 3 , in some possible implementation embodiments provided in the present application, the rack 100 includes a rack body 120 and a support frame 130 connected below the rack body 120, the support frame 130 is provided with a caster assembly, and the support part 110 is a fixing plate of the caster assembly; the first leveling plane 101 is located at the top of the rack body 120, the second leveling plane 102 is located at the top of the support frame 130 and on both sides of the first leveling plane 101 along the X direction, and the machining surface 103 of the rack 100 is located on one side of the rack body 120 facing the treatment bed 400.

[0028] In the embodiment, the rack 100 includes the rack body 120 and the support frame 130, and the support frame 130 is provided, which is beneficial to improve the reliability and stability of the entire rack 100. The support frame 130 is provided with a caster assembly, and the caster assembly is provided, which facilitates the rack 100 to be quickly and conveniently moved to a suitable position through the caster assembly, simplifies the operation of manually carrying the rack 100, and saves manual operation. The support part 110 is a fixing plate of the caster assembly, so that when the rack 100 is moved to a suitable position through the caster assembly, the fixing plate of the caster assembly is placed at the landmark of the test room, and the initial positioning of the rack 100 can be completed, which is simple, convenient and efficient, has small dependence on personnel experience, and has high positioning accuracy.

[0029] As shown in Figure 3 , the first leveling plane 101 is located at the top of the rack body 120, the second leveling plane 102 is located at the top of the support frame 130 and on both sides of the first leveling plane 101 along the X direction, and the machining surface 103 of the rack 100 is located on one side of the rack body 120 facing the treatment bed 400.

[0030] As shown in Figure 2 and Figure 3 , in some possible implementation embodiments provided in the present application, the rack 100 is provided with a virtual isocenter positioning scale line 104 and a Y machining scale line 105, and based on the leveled rack 100, the step of positioning and leveling the first laser lamp 200 located at the top of the rack 100 includes: performing Z-direction positioning operation on the first laser lamp 200 by using an instrument; The first X direction alignment line 201 emitted by the first laser lamp 200 is overlapped with the virtual isocenter positioning line 104; The Y direction alignment line 202 emitted by the first laser lamp 200 is overlapped with the Y processing line 105.

[0031] The embodiment provides a specific scheme for the alignment and leveling operation of the first laser lamp 200. First, the Z direction alignment operation is performed on the first laser lamp 200 by using an instrument, so as to ensure the absolute verticality of the first laser lamp 200. Then, the first X direction alignment line 201 emitted by the first laser lamp 200 is overlapped with the virtual isocenter positioning line 104, so as to realize the Y direction alignment operation of the first laser lamp 200. The Y direction alignment line 202 emitted by the first laser lamp 200 is overlapped with the Y processing line 105, so as to realize the X direction alignment operation of the first laser lamp 200. In this way, the alignment and leveling operation of the first laser lamp 200 is completed.

[0032] Specifically, the Z direction alignment operation can be performed on the first laser lamp 200 by using an automatic leveling laser. It can be understood that the Z direction alignment operation can also be performed on the first laser lamp 200 by using other instruments capable of emitting plumb rays. Further, the first laser lamp 200 can be flipped to realize the Z direction alignment operation.

[0033] Specifically, after the Z direction alignment operation of the first laser lamp 200 is completed, the first laser lamp 200 can be rotated and moved in cooperation to make the first X direction alignment line 201 emitted by the first laser lamp 200 overlapped with the virtual isocenter positioning line 104, so as to realize the Y direction alignment operation of the first laser lamp 200.

[0034] After the Y direction alignment operation of the first laser lamp 200 is completed, the first laser lamp 200 can be moved to make the Y direction alignment line 202 emitted by the first laser lamp 200 overlapped with the Y processing line 105, so as to realize the X direction alignment operation of the first laser lamp 200.

[0035] As shown in FIG. 1, Figure 2 In some possible implementation embodiments provided by the present application, the Y processing line 105 is arranged on the side of the rack 100 close to the first laser lamp 200. The laser alignment arm 140 is connected to the side of the rack 100 close to the first laser lamp 200. The virtual isocenter positioning line 104 is arranged on the laser alignment arm 140. The laser alignment arm 140 is arranged so that the virtual isocenter positioning line 104 can be located at a suitable position, so that the first X direction alignment line 201 emitted by the first laser lamp 200 can be overlapped with the virtual isocenter positioning line 104 on the laser alignment arm 140 conveniently and quickly, and good alignment accuracy can be ensured.

[0036] Specifically, as shown in Figure 5 The laser alignment arm 140 can be connected with the gantry 100 through the second connecting frame 700. Specifically, the second connecting frame 700 includes a first frame body 710 and a second frame body 720, the first frame body 710 connects the second frame body 720 and the laser alignment arm 140, and the second frame body 720 is connected with the gantry 100.

[0037] Specifically, the gantry 100 and the laser alignment arm 140 can be detachably connected through the second connecting frame 700. Thus, when the alignment operation of the helical tomotherapy system is needed, the laser alignment arm 140 can be installed on the gantry 100 through the second connecting frame 700 to align the first X-direction alignment line 201 of the first laser lamp 200 by using the virtual isocenter positioning scale line 104 on the laser alignment arm 140. When the alignment operation of the helical tomotherapy system is not needed, the laser alignment arm 140 can be detached from the gantry 100 through the second connecting frame 700 to facilitate the installation of other test mechanisms. It can be understood that this kind of setting makes the laser alignment arm 140 can be used for positioning operation of different helical tomotherapy systems, and has strong universality.

[0038] As shown in Figure 2 , Figure 4 and Figure 5 In some possible implementation embodiments provided in the present application, the adjustable alignment device 500 is installed on the gantry 100, the first alignment scale line 501 and the second alignment scale line 502 are arranged on the adjustable alignment device 500 along the Y direction at intervals, and the X machining scale line 106 is arranged on the gantry 100. Based on the leveled gantry 100 and the first laser lamp 200, the step of performing the alignment leveling operation on the second laser lamp 300 located on the side includes: overlapping the Z-direction alignment line 301 emitted by the second laser lamp 300 with the Y-direction alignment line 202 emitted by the first laser lamp 200; overlapping the second X-direction alignment line 302 emitted by the second laser lamp 300 with the first alignment scale line 501, the second alignment scale line 502 and the X machining scale line 106.

[0039] The embodiment of the present application provides a specific scheme for the alignment and leveling operation of the second laser lamp 300. First, the Z-direction alignment line 301 emitted by the second laser lamp 300 is overlapped with the Y-direction alignment line 202 emitted by the first laser lamp 200, so as to realize the X-direction alignment operation of the second laser lamp 300. Then, the second X-direction alignment line 302 emitted by the second laser lamp 300 is overlapped with the first alignment scale line 501, the second alignment scale line 502 and the X machining scale line 106 on the rack 100, so as to realize the Z-direction alignment operation of the second laser lamp 300. Thus, the alignment and leveling operation of the second laser lamp 300 is completed.

[0040] Specifically, the Z-direction alignment line 301 emitted by the second laser lamp 300 is overlapped with the Y-direction alignment line 202 emitted by the first laser lamp 200 by cooperating the flipping action, the rotating action and the moving action of the second laser lamp 300, so as to realize the X-direction alignment operation of the second laser lamp 300.

[0041] After the X-direction alignment operation of the second laser lamp 300 is completed, the second X-direction alignment line 302 emitted by the second laser lamp 300 is overlapped with the first alignment scale line 501, the second alignment scale line 502 and the X machining scale line 106 by cooperating the flipping action and the moving action of the second laser lamp 300, so as to realize the Z-direction alignment operation of the second laser lamp 300.

[0042] In some possible implementational embodiments provided by the present application, before the step of overlapping the second X-direction alignment line 302 emitted by the second laser lamp 300 with the first alignment scale line 501, the second alignment scale line 502 and the X machining scale line 106, the method further comprises: The plane where the first alignment scale line 501 and the second alignment scale line 502 are located is leveled, and the first alignment scale line 501 and the second alignment scale line 502 are arranged on the same plane.

[0043] In the embodiment, since the first alignment scale line 501 and the second alignment scale line 502 are arranged on the same plane of the adjustable alignment device 500, before the step of overlapping the second X-direction alignment line 302 emitted by the second laser lamp 300 with the first alignment scale line 501, the second alignment scale line 502 and the X machining scale line 106, the plane where the first alignment scale line 501 and the second alignment scale line 502 are located is leveled, so as to improve the X-direction alignment precision of the second laser lamp 300.

[0044] As Figure 5As shown, in some possible embodiments provided in this application, the adjustable alignment device 500 includes a support frame 510, an adjustable bracket 520, an adjusting member 530, and a locking member. The support frame 510 is connected to the frame 100. The first alignment mark 501 and the second alignment mark 502 are disposed on the plane of the adjustable bracket 520 away from the support frame 510. The adjusting member 530 is connected to the adjustable bracket and the support frame 510 and can adjust the distance between the adjustable bracket 520 and the support frame 510. The locking member is connected to the adjusting member 530 to lock the support frame 510 and the adjustable bracket 520. At least two sets of adjusting members 530 are arranged at intervals along the Y direction.

[0045] This embodiment provides a specific structure of an adjustable alignment device 500. The adjustable alignment device 500 is connected to the frame 100 via a support frame 510, allowing the entire adjustable alignment device 500 to be installed at a suitable position on the frame 100. A first alignment mark 501 and a second alignment mark 502 are disposed on a plane of the adjustable bracket 520 away from the support frame 510. An adjusting member 530 is used to adjust the distance between the adjustable bracket 520 and the support frame 510. Specifically, at least two sets of adjusting members 530 are spaced apart along the Y direction, allowing the distance between the adjustable bracket 520 and the support frame 510 at the location of each adjusting member 530 to be adjusted, thereby enabling the adjustment of the spacing and rotation angle between the adjustable bracket 520 and the support frame 510. Once it is determined that the plane on the adjustable bracket 520 with the first alignment mark 501 and the second alignment mark 502 is in a horizontal state, the carrier frame 510 and the adjustable bracket 520 are locked by connecting the locking member and the adjusting member 530, thereby realizing the leveling operation of the adjustable alignment device 500.

[0046] like Figure 5 As shown, specifically, the distance and rotation angle between the adjustable bracket 520 and the support frame 510 can be adjusted by at least two sets of adjusting members 530 spaced apart along the Y direction. A spirit level is used to confirm whether the plane containing the first alignment mark 501 and the second alignment mark 502 is horizontal. If it is horizontal, the locking member is connected to the adjusting member 530 to lock the support frame 510 and the adjustable bracket 520. If it is not horizontal, the distance and rotation angle between the adjustable bracket 520 and the support frame 510 need to be adjusted again using the adjusting member 530 until the plane containing the first alignment mark 501 and the second alignment mark 502 reaches a horizontal position. Finally, the locking member is connected to the adjusting member 530 to lock the support frame 510 and the adjustable bracket.

[0047] Specifically, the locking member can include a screw 541 and a locking nut 542, the screw 541 is threaded through the bottom of the carrier 510 and the adjustable support 520, and the locking nut 542 is screwed with the screw 541 at the top of the adjustable support, that is, the carrier 510 and the adjustable support are locked.

[0048] Specifically, the adjusting member 530 can be an elastic element, a leveling nut or other structures, which are not limited in the present application.

[0049] Wherein, the adjusting member 530 can be two groups, three groups, four groups or other quantities, and the number of each group of adjusting members 530 can be two, three, four or other quantities, and the plurality of adjusting members 530 in each group can be arranged along the X direction. It can be understood that in some embodiments, the adjusting member 530 in each group can also be one.

[0050] Specifically, as shown in Figure 5 the adjusting member 530 includes two groups, and each group includes two adjusting members 530.

[0051] As shown in Figure 5 in some possible implementation embodiments provided by the present application, the adjustable alignment device 500 is detachably connected with the gantry 100 through the first connecting frame 600.

[0052] In this embodiment, the adjustable alignment device 500 is detachably connected with the gantry 100 through the first connecting frame 600, so that when the helical tomotherapy system needs to be aligned, the adjustable alignment device 500 can be installed on the gantry 100 through the first connecting frame 600 to align the second X direction alignment line 302 of the second laser lamp 300. When the helical tomotherapy system does not need to be aligned, the adjustable alignment device 500 can be detached from the gantry 100 through the first connecting frame 600 to facilitate the installation of other test mechanisms. It can be understood that this arrangement makes the adjustable alignment device 500 can be used for positioning operation of different helical tomotherapy systems, which has strong versatility.

[0053] Further, as shown in Figure 5 the adjustable alignment device 500 is detachably connected with the laser alignment arm 140 through the first connecting member.

[0054] As shown in Figure 1 in some possible implementation embodiments provided by the present application, the treatment bed 400 is provided with a Y alignment scale line 401, and the step of aligning and leveling the treatment bed 400 based on the leveled first laser lamp 200 includes: the Y alignment scale line 401 is coincided with the Y direction alignment line 202 emitted by the first laser lamp 200; The end of the head side of the treatment bed 400 is moved between the first laser lamp 200 and the gantry 100; The bed surface of the treatment bed 400 is leveled.

[0055] The embodiment provides a specific scheme for the alignment leveling operation of the treatment bed 400. Wherein, the Y alignment line 401 on the treatment bed 400 is overlapped with the Y direction alignment line 202 emitted by the first laser lamp 200, so as to realize the X direction accurate positioning of the treatment bed 400. Then, the end of the head side of the treatment bed 400 is moved between the first laser lamp 200 and the gantry 100, that is, the head end of the treatment bed 400 is moved to exceed the first laser lamp 200 by a small segment, and is close to the gantry 100, so as to realize the Y direction accurate positioning of the treatment bed 400. Finally, the bed surface of the treatment bed 400 is leveled, so as to realize the alignment leveling operation of the whole treatment bed 400.

[0056] Specifically, the levelness of the bed surface of the treatment bed 400 can be adjusted by an instrument, for example, the levelness of the bed surface of the treatment bed 400 can be adjusted by a level, so as to realize the leveling operation of the bed surface of the treatment bed 400.

[0057] The spiral tomography radiotherapy system alignment method provided by the embodiment of the present application fills the gap of the efficient and complete alignment method suitable for the spiral tomography radiotherapy system, so that the alignment process is simple, accurate and efficient, the experience dependence of personnel is small, the adjustable alignment device 500 can be compatible with multiple systems, the universality is strong, and the test efficiency is improved.

[0058] Through the description of the above embodiments, those skilled in the art can clearly understand that the present disclosure can be realized by means of software and necessary general hardware platforms, or by hardware.

[0059] Those skilled in the art can understand that the units in the drawings are only schematic diagrams of preferred implementation scenarios, and the units in the drawings are not necessarily required for implementing the present disclosure. Those skilled in the art can understand that the units in the device in the implementation scenario can be distributed in the device in the implementation scenario according to the description of the implementation scenario, or can be correspondingly changed and located in one or more devices different from the implementation scenario. The units of the above implementation scenario can be combined into one unit, or can be further split into multiple sub-units.

[0060] The above serial numbers of the present disclosure are only for description, and do not represent the advantages and disadvantages of the implementation scenarios. The above disclosure is only several specific implementation scenarios of the present disclosure, but the present disclosure is not limited thereto, and any changes that can be thought of by those skilled in the art should fall within the protection scope of the present disclosure.

Claims

1. A helical tomotherapy system alignment method, characterized by, The method comprises the following steps: aligning and leveling the gantry; based on the leveled gantry, aligning and leveling a first laser lamp located on the top of the gantry; based on the leveled gantry and the first laser lamp, aligning and leveling a second laser lamp located on the side of the gantry; based on the leveled first laser lamp, aligning and leveling a treatment bed.

2. The helical tomotherapy system alignment method of claim 1, wherein, The bottom of the gantry is provided with a support part, and the gantry is provided with a first leveling surface, a second leveling surface, and a processing surface. The second leveling surface is located on both sides of the first leveling surface and is perpendicular to the first leveling surface. The step of aligning and leveling the gantry comprises the following steps: aligning the support part with the landmarks of the space where the helical tomotherapy system is located; using an instrument to level the first leveling surface, the second leveling surface, and the processing surface.

3. The helical tomotherapy system alignment method according to claim 2, wherein the gantry comprises a gantry body and a support frame connected below the gantry body, and the support frame is provided with a caster assembly, and the support part is a fixed plate of the caster assembly; the first leveling surface is located on the top of the gantry body, the second leveling surface is located on the top of the support frame and is distributed on both sides of the first leveling surface along the X direction, and the processing surface of the gantry is located on the side of the gantry body facing the treatment bed.

4. The helical tomotherapy system alignment method of claim 1, wherein, The gantry is provided with a virtual isocenter positioning scale line and a Y processing scale line. The step of aligning and leveling the first laser lamp located on the top of the leveled gantry comprises the following steps: using an instrument to perform Z direction alignment operation on the first laser lamp; aligning the first X direction alignment line emitted by the first laser lamp with the virtual isocenter positioning scale line; aligning the Y direction alignment line emitted by the first laser lamp with the Y processing scale line.

5. The helical tomotherapy system alignment method according to claim 4, wherein the side of the gantry close to the first laser lamp is provided with the Y processing scale line, the side of the gantry close to the first laser lamp is connected with a laser alignment arm, and the virtual isocenter positioning scale line is arranged on the laser alignment arm.

6. The helical tomotherapy system alignment method of claim 1, wherein, An adjustable alignment device is installed on the gantry, and a first alignment scale line and a second alignment scale line are arranged on the adjustable alignment device along the Y direction. An X processing scale line is arranged on the gantry. The step of aligning and leveling the second laser lamp located on the side of the leveled gantry and the first laser lamp comprises the following steps: aligning the Z direction alignment line emitted by the second laser lamp with the Y direction alignment line emitted by the first laser lamp; aligning the second X direction alignment line emitted by the second laser lamp with the first alignment scale line, the second alignment scale line, and the X processing scale line.

7. The helical tomotherapy system alignment method of claim 6, wherein, Before the step of aligning the second X direction alignment line emitted by the second laser lamp with the first alignment scale line, the second alignment scale line, and the X processing scale line, the method further comprises the following steps: The planes where the first alignment mark and the second alignment mark are located are leveled.

8. The helical tomotherapy system alignment method of claim 7, wherein, The adjustable alignment device comprises a bearing frame, an adjustable support, an adjusting member and a locking member, the bearing frame is connected with the gantry, the first alignment mark and the second alignment mark are arranged on the plane of the adjustable support away from the bearing frame, the adjusting member is connected with the adjustable support and the bearing frame and can adjust the distance between the adjustable support and the bearing frame, and the locking member is connected with the adjusting member to lock the bearing frame and the adjustable support. At least two groups of the adjusting members are arranged along the Y direction.

9. The helical tomotherapy system alignment method of claim 8, wherein, The adjustable alignment device is detachably connected with the gantry through a first connecting frame.

10. The helical tomotherapy system alignment method of claim 1, wherein, The treatment bed is provided with a Y alignment mark, and the step of performing the alignment leveling operation on the treatment bed based on the leveled first laser lamp comprises: The Y alignment mark is overlapped with the Y direction alignment line emitted by the first laser lamp; The end of the head side of the treatment bed is moved between the first laser lamp and the gantry; The bed surface of the treatment bed is leveled.

Images