Directional proton treatment head of radiotherapy equipment
By introducing a proton beam cross-section control device and a sliding rod structure into the proton therapy head, the problem of difficulty in adjusting the proton beam diameter has been solved, enabling efficient treatment of tumors of different sizes and reducing radiation damage to normal tissues and operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-03-27
AI Technical Summary
Existing proton therapy equipment has difficulty adjusting the proton beam output diameter according to the size of the tumor, resulting in some tumor areas not being fully covered or normal tissues being subjected to unnecessary radiation.
A directional proton therapy head for radiotherapy equipment was designed. By setting multiple proton beam cross-section control devices and sliding rod structures on the polymer shroud, the diameter of the proton beam can be flexibly adjusted. By using multiple directional proton emitters connected in series with the sliding rod structure, it can slide linearly to adapt to tumors of different sizes.
It enables flexible adjustment of the proton beam diameter, improving the targeting and flexibility of treatment, reducing damage to surrounding tissues, and lowering operating costs.
Smart Images
Figure CN224039812U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical equipment technical field, concretely relates to a radiotherapy equipment directional proton treatment head. BACKGROUND
[0002] As an advanced radiotherapy technology, proton therapy has been widely concerned in the field of tumor treatment in recent years. Compared with traditional X-ray radiotherapy, proton therapy utilizes the Bragg peak characteristics of proton beam, which can release most of the energy in the tumor target area, thereby minimizing damage to surrounding healthy tissues.
[0003] However, the proton treatment head of most current proton therapy devices is a fixed-diameter proton output device, so it is difficult to flexibly adjust the fixed-diameter proton beam according to the actual size of the tumor for tumors of different sizes, resulting in situations such as some tumor areas not being fully covered or normal tissues being unnecessarily irradiated. SUMMARY
[0004] The utility model aims at providing a radiotherapy equipment directional proton treatment head to solve the technical problem of being difficult to adjust the proton beam output diameter according to the tumor size in the prior art.
[0005] To solve the above technical problems, the utility model provides the following technical solutions:
[0006] A radiotherapy equipment directional proton treatment head, comprising a polymer cover, a plurality of proton beam cross section control devices are arranged on the polymer cover, each proton beam cross section control device is connected with the polymer cover to form a plurality of ray holes, the plurality of ray holes are linearly arranged along the length direction of the polymer cover, and the proton beam cross section control device can adjust the diameter of the proton beam passing through different ray holes.
[0007] A plurality of directional proton emission heads are arranged in the polymer cover, the plurality of directional proton emission heads are arranged one by one corresponding to the plurality of proton beam cross section control devices, the plurality of directional proton emission heads are connected by a slide rod structure, the directional proton emission heads are slidingly arranged in the polymer cover along the length direction of the polymer cover, and the slide rod structure is used to drive the directional proton emission heads to linearly slide to correspond to different ray holes.
[0008] As a preferred scheme of the utility model, the polymer cover is arranged in a circular arc shape, the plurality of directional proton emission heads are arranged in the arc-shaped inner chamber of the polymer cover, and the plurality of directional proton emission heads emit proton beams to the same focal point on one side of the polymer cover through the ray holes.
[0009] As a preferred scheme of the utility model, the directional proton emission head is linearly arranged along the length direction of the polymer cover, the directional proton emission head is also arranged along the arc profile array of the polymer cover, the directional proton emission head is arranged one by one with the proton beam cross section control device, a plurality of the directional proton emission heads are connected to form a proton emission head joint assembly, the slide rod structure is connected with the proton emission head joint assembly for driving the proton emission head joint assembly to linearly slide in the polymer cover.
[0010] As a preferred scheme of the utility model, the slide rod structure includes a first connecting rod and a second connecting rod, the first connecting rod is arranged in the polymer cover and is fixedly connected with at least one directional proton emission head, one end of the second connecting rod is arranged in the polymer cover and is fixedly connected with at least one directional proton emission head, the other end of the second connecting rod is arranged outside the polymer cover and is connected with a driving device, and two ends of the first connecting rod are movably connected with the polymer cover and the second connecting rod respectively.
[0011] When the first connecting rod is connected with the second connecting rod, the first connecting rod is disconnected with the polymer cover.
[0012] When the first connecting rod is connected with the polymer cover, the first connecting rod is disconnected with the second connecting rod.
[0013] As a preferred scheme of the utility model, the first connecting rod is hollow, first straight slot and second straight slot are arranged on two end faces of the first connecting rod respectively, the first straight slot and the second straight slot are arranged perpendicularly to each other, a rotating column is coaxially arranged in the first connecting rod, clamping limit pieces are arranged on two end faces of the rotating column respectively, the clamping limit pieces include clamping gaps, the clamping gaps on two ends of the rotating column are arranged in alignment, first horizontal pin and second horizontal pin are arranged in the clamping gaps on two ends of the rotating column respectively, the first horizontal pin is rotatably installed on the inner wall of the polymer cover through a connecting shaft, and the second horizontal pin is fixedly installed on the end portion of the second connecting rod through a connecting shaft.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] The utility model discloses a proton beam section control device forms multiple ray holes on the surface of the polymerization cover, and the directional proton emission head is driven to linearly slide along the arrangement direction of the ray hole through the slide bar structure, so that the proton beam can pass through different ray holes to form the section change, and the purpose of the diameter adjustment of the proton beam is achieved. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawing needed to be used in the embodiment or the prior art description. Obviously, the drawing in the following description is only exemplary, and for those skilled in the art, other implementation drawings can be obtained according to the provided drawing without paying creative labor.
[0017] Figure 1 It is the front cutaway schematic view of the utility model;
[0018] Figure 2 It is the overall structure schematic view of the utility model;
[0019] Figure 3 It is the side cutaway structure schematic view one of the utility model;
[0020] Figure 4 It is the side cutaway structure schematic view two of the utility model;
[0021] Figure 5 It is the utility model Figure 4 It is the enlarged view of A in the utility model;
[0022] Figure 6 It is the cutaway schematic view of the first connecting rod end of the utility model;
[0023] Figure 7 It is the structure schematic view of the two end faces of the first connecting rod of the utility model;
[0024] Figure 8 It is the use process drawing of the first connecting rod of the utility model.
[0025] The numbers in the drawing respectively represent as follows:
[0026] 1, polymeric cover; 2, proton beam cross section control device; 3, ray hole; 4, directional proton emitting head; 5, proton emitting head combined assembly; 6, first connecting rod; 7, second connecting rod; 8, first straight slot; 9, second straight slot; 10, rotating column; 11, clamping limiting piece; 12, clamping gap; 13, first cross pin; 14, second cross pin. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0028] As shown in Figures 1 to 8 , the utility model provides a kind of radiotherapy equipment directional proton treatment head, including polymeric cover 1, polymeric cover 1 is provided with multiple proton beam cross section control device 2, as shown in Figure 1 , Figure 2 And Figure 3 , proton beam cross section control device 2 is composed of multiple independent control pieces capable of adjusting the size of proton beam diameter, each independent control piece is inclined to the focus of one side of polymeric cover 1, and the proton beam emitted by each independent control piece converges on a point for targeted treatment.Each independent control piece can control the proton beam to form different diameters such as 2mm, 4mm, 8mm and 16mm, and each proton beam cross section control device 2 is connected with polymeric cover 1 to form multiple ray holes 3, and the multiple ray holes 3 are perforations formed by connecting multiple independent control pieces with polymeric cover 1, and the multiple ray holes 3 are linearly arranged along the length direction of polymeric cover 1, and the proton beam emitted by directional proton emitting head 4 is changed in size when passing through independent control piece.The size of the diameter of the proton beam passing out of different ray holes 3 can be adjusted by proton beam cross section control device 2.
[0029] Multiple directional proton emitting heads 4 are arranged in polymeric cover 1, and the multiple directional proton emitting heads 4 are arranged one by one with multiple proton beam cross section control devices 2 (each proton beam cross section control device 2 includes multiple independent control pieces with different diameters), and the multiple directional proton emitting heads 4 are connected in series by slide bar structure, and the directional proton emitting head 4 is arranged in polymeric cover 1 by sliding along the length direction of polymeric cover 1, and the slide bar structure is used to drive the linear sliding of proton emitting head to correspond to different ray holes 3.
[0030] The arc-shaped design of the aggregation shield 1 makes it easier to concentrate the proton beams emitted by multiple directional proton emitters 4 at the same focal point. The multiple directional proton emitters 4 are arranged in the arc-shaped internal cavity of the aggregation shield 1. The multiple directional proton emitters 4 emit proton beams through the ray hole 3 to the same focal point on one side of the aggregation shield 1 to treat the target area.
[0031] In practical applications, this device can be used as follows: Figure 1 The device is equipped with multiple directional proton emitters 4. The proton beam formed by the combination of multiple directional proton emitters 4 has higher energy for targeted therapy. The multiple directional proton emitters 4 are linearly arranged along the length of the polymerization shield 1, and are also arrayed along the arc-shaped contour of the polymerization shield 1. Each directional proton emitter 4 is correspondingly positioned with a proton beam cross-section control device 2. Each directional proton emitter 4 forms a proton beam of varying diameter through a proton beam cross-section control device 2. The multiple directional proton emitters 4 are interconnected to form a proton emitter assembly 5. A sliding rod structure is connected to the proton emitter assembly 5 to drive the proton emitter assembly 5 to slide linearly within the polymerization shield 1.
[0032] Furthermore, when targeting tumors of different sizes, by adjusting the number of directional proton emitters 4 used, the energy intensity of the proton beam acting on the target area can be adjusted to suit tumors of different sizes, thereby reducing damage to surrounding cells and minimizing side effects. In this device, such as... Figure 4 As shown, the sliding rod structure includes a first connecting rod 6 and a second connecting rod 7. The first connecting rod 6 is disposed inside the polymerization cover 1 and fixedly connected to at least one directional proton emitter 4. One end of the second connecting rod 7 is disposed inside the polymerization cover 1 and fixedly connected to at least one directional proton emitter 4, while the other end is disposed outside the polymerization cover 1 and connected to a driving device. The two ends of the first connecting rod 6 are movably connected to the polymerization cover 1 and the second connecting rod 7, respectively. When the first connecting rod 6 is connected to the second connecting rod 7, the first connecting rod 6 is disconnected from the polymerization cover 1. When the first connecting rod 6 is connected to the polymerization cover 1, the first connecting rod 6 is disconnected from the second connecting rod 7.
[0033] First, the linear movement of the second link 7 can drive the movement of the entire proton emitter assembly 5, thereby changing the proton beam diameter.
[0034] Secondly, by disconnecting the first link 6 and the second link 7, the first link 6 can be idled when the second link 7 moves. This allows only the directional proton emitter 4 connected to the first link 6 to move, while the directional proton emitter 4 connected to the second link 7 remains idle, thus changing the number of directional proton emitters 4 required. Specifically, when applied to smaller tumors, when the first link 6 and the second link 7 are connected, sliding the second link 7 moves the entire proton emitter assembly 5 until the directional proton emitter 4 abuts against the polymerization shield 1 but is not aligned with the ray aperture 3. At this point, the directional proton emitter 4 connected to the first link 6 cannot emit a proton beam. Then, the first link 6 and the second link 7 are disconnected, and by moving the second link 7 to align it with the ray aperture 3, a proton beam can be formed for treatment. This achieves the goal of reducing the number of directional proton therapy heads used, thereby changing the proton beam output intensity to address tumors of different sizes.
[0035] Finally, to prevent the first link 6 from breaking off from the second link 7 and the second link 7 from accidentally sliding inside the polymer cover 1, this device ensures that when the first link 6 and the second link 7 break off, the first link 6 is connected to the polymer cover 1, thus restricting the movement of the first link 6. When the first link 6 and the second link 7 are connected to form an integral structure, the second link 7 is disconnected from the polymer cover 1, thereby enabling the entire proton emitter assembly 5 to move.
[0036] Specifically, such as Figure 5 As shown, the first connecting rod 6 is hollow inside. The first straight groove 8 and the second straight groove 9 are respectively provided on the two end faces of the first connecting rod 6. The first straight groove 8 and the second straight groove 9 are arranged perpendicular to each other. A rotating column 10 is coaxially rotatably arranged inside the first connecting rod 6. Clamping and limiting members 11 are respectively provided on the two end faces of the rotating column 10. The clamping and limiting members 11 include clamping gaps 12. The clamping gaps 12 at both ends of the rotating column 10 are aligned. A first horizontal pin 13 and a second horizontal pin 14 are respectively provided in the clamping gaps 12 at both ends of the rotating column 10. The first horizontal pin 13 is rotatably installed on the inner wall of the polymer cover 1 through a connecting shaft. The second horizontal pin 14 is fixedly installed on the end of the second connecting rod 7 through a connecting shaft.
[0037] like Figure 8 The diagram shows the four states of the first link 6 during use. Figure 8 The first image from top to bottom shows the initial state of the first connecting rod 6, with the first horizontal pin 13 and the second horizontal pin 14 inserted into the clamping gap 12. Then, the second connecting rod 7 is rotated 90 degrees, causing the second horizontal pin 14 to rotate 90 degrees, simultaneously rotating the first horizontal pin 13 via the rotating column 10, as shown... Figure 8The second group of pictures shown, the second cross pin 14 and the second straight slot 9 dislocation, the second connecting rod 7 and the first connecting rod 6 connected (right side of the picture shows), and the first cross pin 13 and the first straight slot 8 with the same, so the first connecting rod 6 and the second connecting rod 7 are connected to each other, the first connecting rod 6 and the aggregate cover 1 disconnected (left side of the picture shows), thus enabling the second connecting rod 7 to move the entire body of all directional proton emitting head 4.
[0038] Further, when only a few directional proton emitting head 4 needs to be applied, the first straight slot 8 and the first cross pin 13 are aligned with the moving slide structure, and the second connecting rod 7 is rotated by 90 degrees, as shown in Figure 8 The third group of pictures in the middle, the first cross pin 13 and the first straight slot 8 dislocation, so that the first connecting rod 6 and the aggregate cover 1 connected (left side of the picture shows), and the second cross pin 14 and the second straight slot 9 with the same, at this time pull out the second connecting rod 7, can drive only the second connecting rod 7 connected to the directional proton emitting head 44 to move, thereby reducing the number of directional proton emitting head 4 applications.
[0039] Further, the second cross pin 14 and the second straight slot 9 are inserted, and rotated by 90 degrees, that is, as shown in Figure 8 The fourth group of pictures in the middle, the first connecting rod 6 and the second connecting rod 7 connected (right side of the picture shows), the first connecting rod 6 and the aggregate cover 1 disconnected (left side of the picture shows), thus forming a reusable.
[0040] Among them, the rotating column 10 can be connected to the first connecting rod 6 by magnetic attraction, so as to prevent vibration from rotating dislocation, so that the cross pin is not easy to insert into the straight slot.
[0041] The above examples are only exemplary embodiments of the present application, not for limiting the present application, the protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements shall be regarded as falling within the protection scope of the present application.
Claims
1. A radiotherapy device directional proton treatment head, characterized in that, The application relates to a proton beam polymerization cover, which comprises a polymerization cover (1) provided with a plurality of proton beam section control devices (2), each of the proton beam section control devices (2) is connected with the polymerization cover (1) to form a plurality of radiation holes (3), the plurality of radiation holes (3) are linearly arranged along the length direction of the polymerization cover (1), and the proton beam section control devices (2) can adjust the diameter of the proton beam passing through different radiation holes (3). A plurality of directional proton emission heads (4) are arranged in the polymerization cover (1), the plurality of directional proton emission heads (4) are arranged in one-to-one correspondence with the plurality of proton beam section control devices (2), the plurality of directional proton emission heads (4) are connected in series by a slide rod structure, the directional proton emission heads (4) are linearly arranged in the polymerization cover (1), and the slide rod structure is used for driving the directional proton emission heads (4) to linearly slide to correspond to different radiation holes (3).
2. A directed proton therapy head for a radiotherapy device according to claim 1, wherein, The polymerization cover (1) is arranged in a circular arc shape, the plurality of directional proton emission heads (4) are arranged in the arc-shaped inner cavity of the polymerization cover (1), and the plurality of directional proton emission heads (4) emit proton beams to the same focal point on one side of the polymerization cover (1) through the radiation holes (3).
3. A directed proton therapy head for a radiotherapy device according to claim 2, wherein, The directional proton emission heads (4) are linearly arranged along the length direction of the polymerization cover (1), the directional proton emission heads (4) are also arranged along the arc-shaped contour of the polymerization cover (1), the directional proton emission heads (4) are arranged in one-to-one correspondence with the proton beam section control devices (2), the plurality of directional proton emission heads (4) are connected with each other to form a proton emission head combined assembly (5), and the slide rod structure is connected with the proton emission head combined assembly (5) and used for driving the proton emission head combined assembly (5) to linearly slide in the polymerization cover (1).
4. The directed proton treatment head of claim 1, wherein, The slide rod structure comprises a first connecting rod (6) and a second connecting rod (7), the first connecting rod (6) is arranged in the polymerization cover (1) and fixedly connected with at least one directional proton emission head (4), one end of the second connecting rod (7) is arranged in the polymerization cover (1) and fixedly connected with at least one directional proton emission head (4), the other end of the second connecting rod (7) is arranged outside the polymerization cover (1) and connected with a driving device, and the two ends of the first connecting rod (6) are movably connected with the polymerization cover (1) and the second connecting rod (7) respectively. When the first connecting rod (6) is connected with the second connecting rod (7), the first connecting rod (6) is disconnected with the polymerization cover (1). When the first connecting rod (6) is connected with the polymerization cover (1), the first connecting rod (6) is disconnected with the second connecting rod (7).
5. A directed proton therapy head for a radiotherapy device according to claim 4, wherein, The first connecting rod (6) is hollow inside, two end faces of the first connecting rod (6) are respectively provided with a first straight mouth groove (8) and a second straight mouth groove (9), the first straight mouth groove (8) and the second straight mouth groove (9) are arranged perpendicular to each other, a rotating column (10) is coaxially arranged inside the first connecting rod (6), clamping limit pieces (11) are respectively arranged on two end faces of the rotating column (10), the clamping limit pieces (11) comprise clamping gaps (12), the clamping gaps (12) on two ends of the rotating column (10) are arranged in alignment, first horizontal pins (13) and second horizontal pins (14) are respectively arranged in the clamping gaps (12) on two ends of the rotating column (10), the first horizontal pin (13) is rotatably installed on the inner wall of the polymerization cover (1) through a connecting shaft, and the second horizontal pin (14) is fixedly installed on the end of the second connecting rod (7) through a connecting shaft.