Proton treatment device

Abstract

The invention discloses a proton treatment device, and relates to the technical field of medical instruments, the proton treatment device comprises a rack, a proton treatment head and an imaging assembly, the proton treatment head is rotatably arranged on the rack, the proton treatment head is provided with a proton emitting hole for emitting a proton beam, and the central axis of the proton emitting hole is defined as a first central axis; the imaging assembly is rotatably arranged on the rack, the imaging assembly is provided with an imaging emitting hole used for emitting an imaging wire harness, the central axis of the imaging emitting hole is defined as a second central axis, the first central axis and the second central axis can be arranged in the same plane, and the first central axis and the second central axis are arranged in an intersecting mode; in other words, the proton wire harness emitted by the proton treatment head and the imaging wire harness emitted by the imaging assembly can intersect, so that imaging and proton treatment of patients at the same position are achieved, the probability that the body positions of the patients are different during imaging and proton treatment is reduced, and the treatment precision and the treatment efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, and more particularly to a proton therapy device. BACKGROUND

[0002] The existing proton therapy device usually comprises an imaging assembly and a proton therapy head. In a treatment process, the patient is first scanned by the imaging assembly to determine the tumor position, and then the patient is transferred to the proton therapy head for irradiation treatment. However, due to the change of the patient's position during the movement from the imaging position to the treatment position, some changes in the patient's position are inevitable, which will cause errors between the tumor position determined based on the imaging result and the actual position of the tumor at the time of treatment. Such errors will directly affect the accuracy of treatment and thus affect the final treatment effect.

[0003] Therefore, how to improve the treatment effect of the proton therapy device has become a technical problem to be solved by those skilled in the art. SUMMARY

[0004] Therefore, how to improve the treatment effect of the proton therapy device has become a technical problem to be solved by those skilled in the art.

[0005] A proton therapy device comprises:

[0006] a gantry;

[0007] a proton therapy head rotatably arranged on the gantry, and the proton therapy head is provided with a proton exit hole for emitting a proton beam, and a middle axis of the proton exit hole is a first middle axis;

[0008] an imaging assembly rotatably arranged on the gantry, and the rotation axes of the proton therapy head and the imaging assembly coincide, and the imaging assembly is provided with an imaging exit hole for emitting an imaging line beam, and a middle axis of the imaging exit hole is a second middle axis, and the first middle axis and the second middle axis are arranged in the same plane and intersect.

[0009] Optionally, in the proton therapy device described above, the proton therapy head and the imaging assembly are driven to rotate on the gantry by different driving devices, respectively.

[0010] Optionally, in the proton therapy device described above, the gantry comprises a first base, a first fixed part, a first rotating part, a second rotating part, a first driving device and a second driving device.

[0011] The first fixed part is arranged on the first base, the first driving device is in transmission connection with the first rotating part, and drives the first rotating part to rotate on the first fixed part.

[0012] The second driving device is in transmission connection with the second rotating part and drives the second rotating part to rotate on the first rotating part.

[0013] One of the proton therapy head and the imaging assembly is connected with the first rotating part, and the other is connected with the second rotating part.

[0014] Optionally, in the proton therapy device, a first sliding groove is arranged on the first fixed part, a first sliding protrusion is arranged on the first rotating part, the first sliding groove extends along the rotating direction of the first rotating part, and the first sliding protrusion is slidably arranged in the first sliding groove.

[0015] And / or, a second sliding groove is arranged on the first rotating part, a second sliding protrusion is arranged on the second rotating part, the second sliding groove extends along the rotating direction of the second rotating part, and the second sliding protrusion is slidably arranged in the second sliding groove.

[0016] Optionally, in the proton therapy device, the first base and the first fixed part are in an integrated structure or a split structure.

[0017] Optionally, in the proton therapy device, a first sensor for detecting the rotating angle of the first rotating part and the second rotating part is arranged on the first base or the first fixed part.

[0018] Optionally, in the proton therapy device, the gantry comprises a third driving device, a fourth driving device, a third rotating part, a fourth rotating part, and a second base, the third rotating part and the fourth rotating part are coaxially arranged and rotatably arranged on the second base, the third driving device is in transmission connection with the third rotating part, the fourth driving device is in transmission connection with the fourth rotating part, the proton therapy head is arranged on the third rotating part, and the imaging assembly is arranged on the fourth rotating part.

[0019] Optionally, in the proton therapy device, a first gear is coaxially arranged on the third rotating part, and the third driving device is in transmission cooperation with the first gear through a second gear.

[0020] And / or, a third gear is coaxially arranged on the fourth rotating part, and the fourth driving device is in transmission cooperation with the third gear through a fourth gear.

[0021] Optionally, in the proton therapy device, a second sensor for detecting the rotating angle of the third rotating part and the fourth rotating part is arranged on the second base.

[0022] Optionally, in the proton therapy device, a rotating radius of the proton therapy head is greater than a rotating radius of the imaging assembly.

[0023] Optionally, in the proton therapy device, the proton therapy head is of a telescopic structure or a non-telescopic structure.

[0024] The proton therapy device provided in the application comprises a gantry, a proton therapy head and an imaging assembly. The gantry is provided with a treatment space in a generally cylindrical shape. A patient bed for a patient to lie on is arranged in the treatment space during treatment. The proton therapy head is rotatably arranged on the gantry and is provided with a proton exit hole for emitting a proton beam. A central axis of the proton exit hole is defined as a first central axis. The imaging assembly is rotatably arranged on the gantry. The rotating axes of the proton therapy head and the imaging assembly can coincide. The imaging assembly is provided with an imaging exit hole for emitting an imaging beam. A central axis of the imaging exit hole is defined as a second central axis. The first central axis and the second central axis can be arranged in the same plane, and the angle between the first central axis and the second central axis is not limited in the application. The first central axis and the second central axis intersect with each other, that is, the proton beam emitted by the proton therapy head and the imaging beam emitted by the imaging assembly can intersect with each other. The intersection position is arranged opposite to the treatment space, and the intersection position is the position of the patient during treatment.

[0025] Compared with the related art, the proton therapy device provided in the application can realize imaging and proton therapy of a patient at the same position by intersecting the proton beam emitted by the proton therapy head and the imaging beam emitted by the imaging assembly. That is, after imaging of the patient is completed, proton therapy can be directly performed without moving the patient bed and the patient. The time interval between imaging and proton therapy is shortened, the probability of the patient changing the body position during imaging and proton therapy is reduced, the treatment accuracy and efficiency are improved. Meanwhile, the proton therapy head and the imaging assembly are integrated on the same gantry, which can reduce the overall volume of the proton therapy device and reduce the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the application or the related art, the drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application. Those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0027] Figure 1 The first proton therapy device disclosed in the embodiments of the application is shown in the axonometric view Figure 1 ;

[0028] Figure 2The first kind of proton therapy device disclosed in the embodiments of the present application is a perspective view of a shaft Figure 2 ;

[0029] Figure 3 The first kind of gantry disclosed in the embodiments of the present application is a perspective view of a shaft Figure 1 ;

[0030] Figure 4 The first kind of gantry disclosed in the embodiments of the present application is a perspective view of a shaft Figure 2 ;

[0031] Figure 5 The second kind of gantry disclosed in the embodiments of the present application is a perspective view of a shaft

[0032] Figure 6 The second kind of proton therapy device disclosed in the embodiments of the present application is a front view

[0033] Figure 7 The second kind of proton therapy device disclosed in the embodiments of the present application is a perspective view of a shaft

[0034] Figure 8 The third kind of proton therapy device disclosed in the embodiments of the present application is a front view

[0035] Figure 9 The fourth kind of proton therapy device disclosed in the embodiments of the present application is a front view

[0036] Figure 10 The fifth kind of proton therapy device disclosed in the embodiments of the present application is a front view

[0037] Wherein, 100 is a gantry, 101 is a treatment space, 110 is a first base, 111 is a stator, 112 is a first rotating part, 113 is a second rotating part, 114 is a second base, 115 is a third rotating part, 116 is a fourth rotating part, 117 is a ring-shaped toothed rail, 118 is a rotor, 120 is a mounting piece, 121 is a conductive loop, 122 is an electric brush, and 130 is an outer shell.

[0038] 200 is a proton therapy head, and 201 is a first central axis.

[0039] 300 is a CT tube, 301 is a second central axis, and 310 is a CT detector. DETAILED DESCRIPTION

[0040] The core of the present application is to disclose a proton therapy device to improve the treatment effect of the proton therapy device.

[0041] Hereinafter, the embodiments will be described with reference to the accompanying drawings. In addition, the embodiments shown below do not have any limiting effect on the gist of the application described in the claims. Furthermore, the entire contents of the configurations represented in the following embodiments are not limited to what is necessary for the solution of the application described in the claims. Note that, for the convenience of description, only the portions related to the application are shown in the drawings. The embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0042] The existing proton therapy device, the proton therapy head and the imaging assembly are arranged in different rooms. During the treatment, the patient lies on the bed and is first imaged at the imaging assembly, and then the bed and the patient are moved together to the position of the proton therapy head by the mechanical arm for treatment. During the movement, the body position of the patient inevitably changes, resulting in a certain error between the tumor positioning according to the imaging assembly and the actual tumor position during treatment, which affects the treatment effect. Based on this, the following proton therapy device is disclosed.

[0043] In combination Figures 1-10 The proton therapy device disclosed by the embodiments of the present application includes a rack 100, a proton therapy head 200 and an imaging assembly. The rack 100 is provided with a treatment space 101, which is usually in a cylindrical shape. During treatment, the bed on which the patient lies is arranged in the treatment space 101. The proton therapy head 200 is rotatably arranged on the rack 100, and the proton therapy head 200 is provided with a proton exit hole for emitting a proton beam. The central axis of the proton exit hole is defined as a first central axis 201. The imaging assembly is rotatably arranged on the rack 100, and the imaging assembly is provided with an imaging exit hole for emitting an imaging beam. The central axis of the imaging exit hole is defined as a second central axis 301. The first central axis 201 and the second central axis 301 can be arranged in different planes. In order to further reduce the volume of the proton therapy device and facilitate the layout, the first central axis 201 and the second central axis 301 can be arranged in the same plane, and the present application does not limit the angle between the first central axis 201 and the second central axis 301. The first central axis 201 and the second central axis 301 are arranged to intersect, that is, the proton beam emitted by the proton therapy head 200 and the imaging beam emitted by the imaging assembly can intersect, and the intersection position is arranged relative to the treatment space 101, and at the same time, the intersection position is the position of the patient during treatment. In addition, the rotation axes of the proton therapy head 200 and the imaging assembly can coincide and be collinear with the central axis of the treatment space 101, which facilitates the layout.

[0044] Specifically, during the treatment, the imaging assembly first scans and images the designated position of the patient through the imaging exit hole, and the rotation of the imaging assembly can ensure the scanning range; after the imaging is completed, the proton therapy head 200 performs treatment on the patient according to the imaging result of the imaging assembly, and the proton therapy head 200 can be rotated to adjust the exit position of the proton beam before and during the treatment.

[0045] Compared with the prior art, the proton therapy device disclosed in the embodiments of the present application can realize imaging and proton therapy of the patient at the same position by the cross arrangement of the proton beam emitted by the proton therapy head 200 and the imaging beam emitted by the imaging assembly, that is, the proton therapy can be directly performed after the imaging of the patient is completed, without moving the patient bed and the patient, thereby shortening the time interval between imaging and proton therapy, reducing the probability of the patient's body position being different during imaging and proton therapy, improving the treatment accuracy and treatment efficiency; meanwhile, the proton therapy head 200 and the imaging assembly are integrated on the same gantry 100, which can reduce the overall volume of the proton therapy device and reduce the production cost.

[0046] The imaging assembly and the proton therapy head 200 can be respectively rotated on the gantry 100 by driving of the fixed-rotor structure or other driving structures, and the fixed-rotor structure driving rotation of the imaging assembly will be taken as an example. The rotor 118 can be rotated relative to the stator 111 under the electromagnetic action, the proton therapy head 200 can be arranged on the end face of the rotor 118, and the specific structure and mutual cooperation relationship of the stator 111 and the rotor 118 are the prior art, which will not be described herein. The stator 111 and the rotor 118 can transmit signals through a conductive slip ring assembly. Specifically, the conductive slip ring assembly includes a mounting member 120, an electric brush 122 and a plurality of conductive ring channels 121. The mounting member 120 is cylindrical or annular, the mounting member 120 is coaxially arranged with the rotor 118 and is directly or indirectly connected, the plurality of conductive ring channels 121 are coaxially arranged on the outer wall of the mounting member 120, one end of the electric brush 122 is connected with the gantry 100, and the other end is in sliding contact with the plurality of conductive ring channels 121. The diameters of the conductive ring channels 121 can be the same or different, Figure 2 and Figure 4 The technical solution in which the diameters of the conductive ring channels 121 are different and coaxially arranged on the same plane of the mounting member 120 is shown in FIG. Figure 5 The technical solution in which the diameters of the conductive ring channels 121 are the same and are arranged along the axial direction of the rotor 118 is shown in FIG. The arrangement mode of the electric brush 122 is adapted to the arrangement mode of the conductive ring channels 121. These conductive ring channels 121 can be used as conductive channels for power supply, system grounding, signal or data transmission, respectively.

[0047] The imaging assembly and the proton therapy head 200 can realize the coplanar arrangement of the first central axis 201 and the second central axis 301 through various arrangement modes, and the arrangement modes of the imaging assembly and the proton therapy head 200 are combined with each other.Figure 1 Taking the imaging component and proton therapy head 200 respectively mounted on the first rotor and the second rotor as an example, the first rotor and the second rotor are coaxially and staggered. The imaging component is mounted on the end face of the first rotor near the second rotor and is arranged inside the second rotor. The proton therapy head 200 is mounted on the axial inner wall of the second rotor, thereby achieving coaxial and coplanar arrangement of the first central axis 201 and the second central axis 301; in some embodiments, combined with Figure 6 and Figure 7 Two annular toothed rails 117 are arranged axially on the frame 100. The imaging component can rotate on the two annular toothed rails 117. The proton therapy head 200 can be rotatably set between the two annular toothed rails 117. At this time, the first central axis 201 and the second central axis 301 can be arranged coaxially and coplanarly in the middle plane of the two annular toothed rails 117.

[0048] Combination Figure 8 In some embodiments disclosed in this application, the frame 100 includes a first base 110, a first rotating part 112, and a first fixing part. The first fixing part is disposed on the first base 110, and the first rotating part 112 is rotatable relative to the first fixing part. The proton therapy head 200 and the imaging assembly are both disposed on the first rotating part 112. The first base 110 is provided with the aforementioned treatment space 101. Both the first rotating part 112 and the first fixing part are provided with through holes coaxially arranged with the treatment space 101, and the first rotating part 112 is rotatable about the central axis of the treatment space 101. In this embodiment, when the first rotating part 112 rotates, the proton therapy head 200 and the imaging assembly rotate synchronously with the first rotating part 112, resulting in a simple structure and low cost. In this embodiment, both the first rotating part 112 and the first fixing part are annular structures.

[0049] In some embodiments, since the imaging component requires high-speed rotation for image positioning, while the proton therapy head 200, due to its weight and precision limitations, cannot achieve high-speed rotation, to avoid functional conflict between the two, the proton therapy head 200 and the imaging component can be driven separately by different drive devices, enabling them to rotate independently on the gantry 100 according to different positioning or treatment needs. Specifically, in conjunction with Figure 9The frame 100 includes a first base 110, a first fixing part, a first rotating part 112, a second rotating part 113, a first driving device, and a second driving device. The first fixing part is disposed on the first base 110. The first driving device is pulsatorically connected to the first rotating part 112 and can drive the first rotating part 112 to rotate on the first fixing part. The second driving device is pulsatorically connected to the second rotating part 113 and can drive the second rotating part 113 to rotate on the first rotating part 112. One of the proton therapy head 200 and the imaging assembly is connected to the first rotating part 112, and the other is connected to the second rotating part 113. A treatment space 101 is provided on the first base 110. The first fixing part, the first rotating part 112, and the second rotating part 113 are all provided with through holes arranged coaxially with the treatment space 101, and both the first rotating part 112 and the second rotating part 113 rotate around the central axis of the treatment space 101. In this embodiment, the first driving device can drive the proton therapy head 200 and the imaging component to rotate and adjust their positions together, and the second driving device can drive one of the proton therapy head 200 and the imaging component to rotate and adjust its position relative to the other of the proton therapy head 200 and the imaging component. This allows for more flexible adjustment of the relative positions of the proton therapy head 200 and the imaging component, more convenient arrangement, and applicability to more application scenarios. Furthermore, if the transmission structure of one of the first rotating part 112 and the second rotating part 113 malfunctions, it will not affect the rotation of the other of the first rotating part 112 and the second rotating part 113. Taking the proton therapy head 200 being mounted on the second rotating part 113 and the imaging component being mounted on the first rotating part 112 as an example, the second driving device can drive the proton therapy head 200 to rotate on the first rotating part 112. Figure 9 The image shows a technical solution in which a proton therapy head 200 is connected to a first rotating part 112 and an imaging component is connected to a second rotating part 113.

[0050] The first driving device can be a drive motor, and it can be connected to the first rotating part 112 via a transmission structure such as gears or sprockets. The first rotating part 112 can rotate relative to the first fixed part via a structure such as bearings or rollers to reduce resistance. The second driving device can be a drive motor and is mounted on the first rotating part 112. It can be connected to the second rotating part 113 via a transmission structure such as gears or sprockets. The second rotating part 113 can rotate relative to the first rotating part 112 via a structure such as bearings or rollers to reduce resistance.

[0051] To ensure that the first central axis 201 and the second central axis 301 are in the same plane, the relative position of the proton therapy head 200 and the imaging component can be adjusted by arranging a pad between the first rotating part 112 and the proton therapy head 200 or the imaging component, or between the second rotating part 113 and the proton therapy head 200 or the imaging component. The pad and the first rotating part 112 or the second rotating part 113 can be an integral structure or a separate structure.

[0052] A first sensor can be installed on the first fixed part or the first base 110 to acquire the rotational position information of the first rotating part 112 and the second rotating part 113. The first sensor can be a photoelectric sensor, a rotary encoder, etc.

[0053] A first sliding groove is provided on the first fixed part, and a first sliding protrusion is provided on the first rotating part 112. The first sliding groove extends along the rotation direction of the first rotating part 112 and can be annular. The first sliding protrusion is slidably disposed in the first sliding groove to realize the rotational guidance of the first rotating part 112 on the first fixed part.

[0054] A second sliding groove is provided on the first rotating part 112, and a second sliding protrusion is provided on the second rotating part 113. The second sliding groove extends along the rotation direction of the second rotating part 113 and can be annular. The second sliding protrusion is slidably disposed in the second sliding groove to realize the rotational guidance of the second rotating part 113 on the first rotating part 112.

[0055] In some embodiments disclosed in this application, combined with Figure 10 The frame 100 includes a third drive device, a fourth drive device, a third rotating part 115, a fourth rotating part 116, and a second base 114. The third drive device and the fourth drive device are both located on the second base 114 or on the ground. The proton therapy head 200 is located on the third rotating part 115, and the imaging component is located on the fourth rotating part 116. The third rotating part 115 and the fourth rotating part 116 are coaxially arranged and can both be rotatably mounted on the second base 114. The third drive device is driven by the third rotating part 115 to drive the third rotating part 115 to rotate the proton therapy head 200 on the second base 114. The fourth drive device is driven by the fourth rotating part 116 to drive the fourth rotating part 116 to rotate the imaging component on the second base 114. The second base 114 is provided with a treatment space 101. The third rotating part 115 and the fourth rotating part 116 are both provided with through holes arranged coaxially with the treatment space 101. Both the third rotating part 115 and the fourth rotating part 116 rotate around the central axis of the treatment space 101. In this embodiment, the proton therapy head 200 and the imaging component are driven to rotate by the third driving device and the fourth driving device, respectively, allowing for more flexible position adjustment.

[0056] The third and fourth driving devices can be drive motors. The third rotating part 115 and the fourth rotating part 116 can rotate relative to the second base 114 through bearings or rollers to reduce friction. The third driving device can be connected to the third rotating part 115 through a gear or other transmission structure, and the fourth driving device can be connected to the fourth rotating part 116 through a gear or other transmission structure. For example, a first gear is coaxially arranged on the third rotating part 115, and the third driving device can be driven by the first gear through a second gear. A third gear is coaxially arranged on the fourth rotating part 116, and the fourth driving device can be driven by the third gear through the third gear.

[0057] The control devices for the third rotating part 115 and the fourth rotating part 116 can be communicatively connected, allowing the proton therapy head 200 and the imaging component to rotate synchronously or asynchronously. A second sensor can be installed on the second base 114 to acquire the rotational position information of the first rotating part 112. The second sensor can be a photoelectric sensor, a rotary encoder, etc.

[0058] A third slide groove and a fourth slide groove are provided on the second base 114. A third sliding protrusion and a fourth sliding protrusion are provided on the third rotating part 115 and the fourth rotating part 116, respectively. The third slide groove extends along the rotation direction of the third rotating part 115 and can be annular. The third sliding protrusion is slidably disposed in the third slide groove. The fourth slide groove extends along the rotation direction of the fourth rotating part 116 and can be annular. The fourth sliding protrusion is slidably disposed in the fourth slide groove, so as to realize the rotational guidance of the third rotating part 115 and the fourth rotating part 116 on the second base 114.

[0059] Both the third rotating part 115 and the fourth rotating part 116 can be ring-shaped structures. In the above embodiment, the third rotating part 115 can be disposed outside the fourth rotating part 116; or, the third rotating part 115 can be disposed inside the fourth rotating part 116, with flexible arrangement.

[0060] In some embodiments, the third rotating part 115 and the fourth rotating part 116 may be staggered along the axial direction. To ensure that the first central axis 201 and the second central axis 301 are arranged in the same plane, the proton therapy device further includes at least one of a first pad and a second pad. The first pad is disposed between the proton therapy head 200 and the third rotating part 115, and the second pad is disposed between the imaging component and the fourth rotating part 116, so as to adjust the relative position of the first central axis 201 and the second central axis 301 by means of the first pad and the second pad. The first pad and the third rotating part 115 may be an integral structure or a separate structure, and the second pad and the fourth rotating part 116 may be an integral structure or a separate structure.

[0061] The imaging assembly can employ fan-beam computed tomography (CT) imaging technology. For example, the imaging assembly may include a CT tube 300 and a CT detector 310, which are respectively positioned on opposite sides of the central axis of the treatment space 101. The CT tube 300 and CT detector 310 rotate synchronously. An imaging exit port is located on the CT tube 300, and the imaging beam emitted from the imaging exit port is received and imaged by the CT detector 310. The specific structure of the imaging assembly is prior art and will not be described further in this embodiment.

[0062] An outer casing 130 is typically installed outside the rack 100 to provide some protection for the rack 100.

[0063] The aforementioned drive devices, proton therapy head 200, and imaging component can all be controlled by the same controller. In treatment mode, the controller can output corresponding control signals to the proton therapy head 200, imaging component, and each drive device, allowing each component to move to the required position according to the treatment plan. In non-treatment mode, the controller can adjust the proton therapy head 200 and imaging component to a preset position, keeping the entire device in a low center of gravity state.

[0064] Those skilled in the art will understand that, to avoid interference, the proton therapy head 200 must be outside the rotational imaging range of the imaging component during image localization; and after localization is complete, the proton therapy head 200 will perform coplanar oscillation therapy, at which time the imaging component must not obstruct the proton therapy head 200. Therefore, in combination with Figure 9 and Figure 10 The rotation radius of the proton therapy head 200 is greater than that of the imaging component.

[0065] The proton therapy head 200 described above can be a retractable or non-retractable structure. For a non-retractable structure, the structure of the imaging component can be adjusted to avoid interference between the proton therapy head 200 and the imaging component during rotation; when the proton therapy head 200 is a retractable structure, the controller can control the proton therapy head 200 to be in a retracted state to avoid interference with the movement of the imaging component.

[0066] The terms "first" and "second," etc., used in the specification and claims of this application are used to distinguish different objects, not to describe a specific order, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units may include steps or units not listed, but rather steps or units not listed. Additionally, in the description of embodiments in this application, "a plurality of" means two or more.

[0067] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Specific technical means in some embodiments may be incorporated, in whole or in part, into another embodiment unless explicitly excluded by another embodiment. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A proton therapy device, characterized in that, include: Rack (100); A proton therapy head (200) is rotatably mounted on the frame (100), and the proton therapy head (200) is provided with a proton emission port for emitting a proton beam, the central axis of the proton emission port being a first central axis (201). An imaging assembly is rotatably mounted on the frame (100), and the rotation axes of the proton therapy head (200) and the imaging assembly coincide. The imaging assembly is provided with an imaging exit hole for emitting an imaging beam. The central axis of the imaging exit hole is a second central axis (301). The first central axis (201) and the second central axis (301) are arranged in the same plane and intersect each other.

2. The proton therapy device as described in claim 1, characterized in that, The proton therapy head (200) and the imaging assembly are driven to rotate on the gantry (100) by different driving devices.

3. The proton therapy device as described in claim 2, characterized in that, The frame (100) includes a first base (110), a first fixed part, a first rotating part (112), a second rotating part (113), a first driving device, and a second driving device; The first fixing part is disposed on the first base (110), and the first driving device is connected to the first rotating part (112) in a transmission connection, and drives the first rotating part (112) to rotate on the first fixing part; The second driving device is connected to the second rotating part (113) and drives the second rotating part (113) to rotate on the first rotating part (112); One of the proton therapy head (200) and the imaging assembly is connected to the first rotating part (112), and the other is connected to the second rotating part (113).

4. The proton therapy device as described in claim 3, characterized in that, The first fixed part is provided with a first sliding groove, and the first rotating part (112) is provided with a first sliding protrusion. The first sliding groove extends along the rotation direction of the first rotating part (112), and the first sliding protrusion is slidably disposed in the first sliding groove. And / or, the first rotating part (112) is provided with a second sliding groove, the second rotating part (113) is provided with a second sliding protrusion, the second sliding groove extends along the rotation direction of the second rotating part (113), and the second sliding protrusion is slidably disposed in the second sliding groove.

5. The proton therapy device as described in claim 3, characterized in that, The first base (110) and the first fixing part are either an integral structure or a separate structure.

6. The proton therapy device as described in claim 3, characterized in that, A first sensor for detecting the rotation angle of the first rotating part (112) and the second rotating part (113) is provided on the first base (110) or the first fixing part.

7. The proton therapy device as described in claim 2, characterized in that, The frame (100) includes a third drive device, a fourth drive device, a third rotating part (115), a fourth rotating part (116), and a second base (114). The third rotating part (115) and the fourth rotating part (116) are coaxially arranged and rotatably mounted on the second base (114). The third drive device is drivenly connected to the third rotating part (115), and the fourth drive device is drivenly connected to the fourth rotating part (116). The proton therapy head (200) is mounted on the third rotating part (115), and the imaging component is mounted on the fourth rotating part (116).

8. The proton therapy device as described in claim 7, characterized in that, The third rotating part (115) is coaxially provided with a first gear, and the third driving device is driven by the first gear through a second gear; And / or, a third gear is coaxially provided on the fourth rotating part (116), and the fourth driving device is driven by the third gear through the fourth gear.

9. The proton therapy device as described in claim 7, characterized in that, The second base (114) is provided with a second sensor for detecting the rotation angle of the third rotating part (115) and the fourth rotating part (116).

10. The proton therapy device as described in claim 2, characterized in that, The rotation radius of the proton therapy head (200) is greater than the rotation radius of the imaging component.

11. The proton therapy device as claimed in claim 1, characterized in that, The proton therapy head (200) may be a retractable or non-retractable structure.

Images