A simulator for radiotherapy

Abstract

This utility model discloses a simulated treatment device for radiotherapy, relating to the field of radiotherapy technology. It includes a bed, a rotating and moving mechanism, a lifting mechanism, and a telescopic mechanism. The rotating and moving mechanism is located in front of the head of the bed and rotates around the bed. The lifting mechanism is mounted on the rotating and moving mechanism, with its lower end fixedly connected to the rotating and moving mechanism and its upper end mounted on the telescopic mechanism, which has a treatment head mounted on it. This utility model overcomes the technical problem of existing simulated treatment devices having a fixed position and being unable to be adjusted, providing a simulated treatment device that can operate at multiple angles and directions and is applicable to multiple treatment rooms simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of radiotherapy technology, specifically to a radiotherapy simulation device. Background Technology

[0002] Before radiotherapy, patients need to undergo radiation simulation therapy. This involves initially positioning the patient on the treatment bed in the preparation room, and then, according to the treatment plan (TPS), using a laser positioning system to perform preliminary surface registration of the patient. After surface registration, an image-guided system is used to precisely register the patient to ensure that the patient's position is within tolerance. Finally, the treatment bed is moved to the treatment beam port in the treatment room for irradiation.

[0003] Simulated therapy is designed to ensure that the patient's irradiation site is accurately aligned with the treatment beam during treatment in the treatment room. Before the patient is irradiated, the relative position (incident direction, gap, etc.) between the patient and the treatment beam needs to be verified and confirmed to avoid interference. Existing simulated therapy devices are set up for a single treatment room with the same scenario. The position of the simulated treatment head is fixed and singular; neither its position nor its height can be adjusted or moved, and it cannot adapt to different treatment scenarios in multiple treatment rooms. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem that the position of existing simulated treatment devices is fixed and cannot be adjusted. This invention provides the following technical solution:

[0005] A radiotherapy simulation device includes a bed, a rotating and moving mechanism, a lifting mechanism, and a telescopic mechanism. The rotating and moving mechanism is located in front of the head of the bed and rotates around the bed. The lifting mechanism is mounted on the rotating and moving mechanism, with its lower end fixedly connected to the rotating and moving mechanism and its upper end mounted on the telescopic mechanism, on which a treatment head is mounted.

[0006] The rotating and moving mechanism includes a rotary component and a telescopic component installed on the ground. The telescopic component is fixedly connected to the rotary component and moves in a circle around the center point of the rotary component. The telescopic component has moving rods on both sides. A roller is provided at the bottom of one end of the moving rod, and the other end is fixedly connected to the telescopic component. Both moving rods are fixedly connected to the bottom of the lifting mechanism.

[0007] The rotary assembly includes a third connector, a dial, and a locking component. The dial is fixedly installed on the ground. The locking component passes through the third connector and the dial, and fixes the third connector. The third connector is fixedly connected to the telescopic assembly.

[0008] When the locking member is in a free state, the third connecting member rotates around the locking member.

[0009] When the locking member is in the locked state, the third connecting member is fixed on the dial.

[0010] The third connector is equipped with a pointer, which is fixedly connected to the third connector. The dial is provided with a scale, and the pointer points to the scale.

[0011] The telescopic assembly includes a connecting rod and a first sliding frame. The connecting rod and the first sliding frame are slidably engaged in the horizontal direction. One end of the connecting rod is fixedly connected to a third connecting member. Two movable rods are respectively fixedly installed on both sides of the first sliding frame. One end of the first sliding frame is provided with a first connecting member, and a first lead screw is provided above it. One end of the first lead screw passes through the first connecting member and is fixedly connected to a first handle. The other end is rotatably connected to the sliding member through a first bearing. The first connecting member is threadedly engaged with the first lead screw, and the sliding member is slidably engaged with the first sliding frame.

[0012] The first sliding frame has a first sliding groove on its upper surface, and the sliding member is slidably connected to the first sliding groove.

[0013] The lifting mechanism includes a second sliding frame and a third sliding frame, which slide in a vertical direction. The two ends of the bottom of the second sliding frame are fixedly connected to the two moving rods, and the telescopic mechanism is installed on the top of the third sliding frame.

[0014] The second sliding frame is provided with multiple screw holes, and the third sliding frame is provided with bolts, which are adapted to the screw holes.

[0015] The telescopic mechanism includes a support frame assembly and a second lead screw passing through one side of the support frame assembly. The support frame assembly is threadedly connected to the second lead screw. One end of the support frame assembly is fixedly connected to the upper end of the lifting mechanism. One end of the second lead screw is rotatably connected to the treatment head through a second bearing, and the other end passes through a drive assembly and is rotatably connected to the drive assembly. The drive assembly is used to drive the second lead screw to rotate.

[0016] Furthermore, a radiotherapy simulation device also includes a fixing rod, one end of which is fixedly connected to the first sliding frame and the other end of which is fixedly connected to the second sliding frame.

[0017] This utility model has the following advantages:

[0018] (1) The present invention provides a radiotherapy simulation device for simulating the patient’s position and the relative position of the treatment beam before the patient undergoes radiotherapy, so that the patient can determine the treatment position in advance before the actual treatment, so as to directly position the patient during the formal radiotherapy, saving adjustment time and improving accuracy.

[0019] (2) The present invention provides a radiotherapy simulation treatment device that can extend and retract the treatment head in the horizontal direction, move it in the vertical direction, and rotate it around the treatment bed. This makes the simulation treatment device more flexible. A simulation room can be set up to match multiple treatment rooms with different scenarios at the same time, saving construction space.

[0020] (3) Furthermore, the treatment head of this utility model can be adapted to the horizontal direction for the first time by the telescopic component, and then adapted to the telescopic mechanism for the second time by the telescopic mechanism, so that the treatment head is closer to the area to be treated. This makes the effect of the treatment head simulating treatment more in line with the actual treatment situation and the treatment accuracy is higher. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a front view of the present utility model;

[0023] Figure 3 This is a schematic diagram of the rotary assembly.

[0024] Figure 4 This is a magnified view of point A;

[0025] Figure 5 This is a magnified view of point B.

[0026] In the figure: 1. Rotary moving mechanism, 11. Rotary assembly, 111. Third connecting piece, 112. Dial, 113. Locking piece, 114. Pointer, 12. Telescopic assembly, 121. Connecting rod, 122. First sliding frame, 123. First connecting piece, 124. First lead screw, 125. First handle, 126. Sliding piece, 127. First slide groove, 13. Moving rod, 14. Roller, 2. Lifting mechanism, 21. Second sliding frame, 22. Third sliding frame, 3. Telescopic mechanism, 31. Support frame assembly, 32. Second lead screw, 33. Drive assembly, 34. Second handle, 35. Support rod, 4. Bed body, 5. Treatment head, 6. Fixing rod (6). Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0030] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] See Figures 1 to 5A radiotherapy simulation device includes a bed 4, a rotating and moving mechanism 1, a lifting mechanism 2, and a telescopic mechanism 3. The rotating and moving mechanism 1 is located in front of the head of the bed 4 and rotates around the bed 4. The lifting mechanism 2 is mounted on the rotating and moving mechanism 1, with its lower end fixedly connected to the rotating and moving mechanism 1 and its upper end mounted on the telescopic mechanism 3. A treatment head 5 is mounted on the telescopic mechanism 3. The telescopic mechanism 3 is used to adjust the horizontal extension and retraction of the treatment head 5. The lifting mechanism 2 drives the telescopic mechanism 3 and the treatment head 5 to adjust their vertical movement. The rotating and moving mechanism 1 rotates around the head of the bed 4. Specifically, the rotating moving mechanism 1 can rotate around the bed 4. Since the lifting mechanism 2 is installed on the rotating moving mechanism 1 and the telescopic mechanism 3 is installed on the lifting mechanism 2, the lifting mechanism 2 and the telescopic mechanism 3 are driven to rotate around the bed 4, which in turn drives the treatment head 5 to rotate around the bed 4. The lifting mechanism 2 drives the telescopic mechanism 3 and the treatment head 5 to adjust in height, while the telescopic mechanism 3 drives the treatment head 5 to adjust horizontally. This allows the simulated treatment device to move and adjust in multiple directions, including rotation, horizontal direction, and vertical direction, thereby adapting to different situations and positions in the treatment room.

[0032] See Figure 4 The rotating and moving mechanism 1 includes a rotating component 11 and a telescopic component 12 mounted on the ground. The telescopic component 12 is fixedly connected to the rotating component 11 and rotates in a circle around the center point of the rotating component 11. Moving rods 13 are provided on both sides of the telescopic component 12. A roller 14 is provided at the bottom of one end of each moving rod 13, and the other end is fixedly connected to the telescopic component 12. Both moving rods 13 are fixedly connected to the bottom of the lifting mechanism 2. Since the rotating component 11 can rotate around its center point, it drives the telescopic component 12 to rotate around the center point. The moving rods 13 on both sides of the telescopic component 12 support it. The rollers 14 also make the movement of the telescopic component 12 smoother. Preferably, the rollers 14 are equipped with a locking mechanism. When the rollers 14 stop moving, they are locked to prevent movement, thereby driving the movement of the entire device.

[0033] See Figure 3 The rotary assembly 11 includes a third connector 111, a dial 112, and a locking member 113. The dial 112 is fixedly installed on the ground. The locking member 113 passes through the third connector 111 and the dial 112 and fixes the third connector 111. The third connector 111 is fixedly connected to the telescopic assembly 12.

[0034] When the locking member 113 is in a free state, the third connecting member 111 rotates around the locking member 113.

[0035] When the locking member 113 is in the locked state, the third connecting member 111 is fixed on the dial 112 and the third connecting member 111 stops rotating.

[0036] The third connector 111 is provided with a pointer 114, which is fixedly connected to the third connector 111. The dial 112 is provided with a scale, and the pointer 114 points to the scale. The scale and the matching pointer 114 are used to indicate the adjustment angle.

[0037] See Figure 4 The telescopic assembly 12 includes a connecting rod 121 and a first sliding frame 122. The connecting rod 121 and the first sliding frame 122 are slidably connected in the horizontal direction. One end of the connecting rod 121 is fixedly connected to a third connecting member 111. Two moving rods 13 are respectively fixedly installed on both sides of the first sliding frame 122. One end of the first sliding frame 122 is provided with a first connecting member 123, and a first lead screw 124 is provided above it. One end of the first lead screw 124 passes through the first connecting member 123 and is fixedly connected to a first handle 125. The other end is rotatably connected to a sliding member 126 through a first bearing. The first connecting member 123 and the first lead screw 124 are threadedly connected. The sliding member 126 is slidably connected to the first sliding frame 122. Specifically, the locking member 113 passes through one side of the third connecting member 111 and the dial 112, and fixes the third connecting member 111. The other side of the third connecting member 111 is fixedly connected to the connecting rod 121 of the telescopic assembly 12.

[0038] The first sliding frame 122 has a first sliding groove 127 on its upper surface, and the sliding member 126 is slidably connected to the first sliding groove 127. Specifically, the sliding member 126 has a sliding member 126 that is adapted to the first sliding groove 127, and the sliding member 126 is located in the first sliding groove 127 and slidably engages with the first sliding groove 127.

[0039] Rotating the first handle 125 causes the first lead screw 124 to rotate. Due to the rotation of the first lead screw 124, and its threaded connection with the first connecting member 123, relative movement occurs between the first connecting member 123 and the first lead screw 124. Specifically, the first connecting rod 121 drives the first sliding frame 122, which is fixedly connected to the first connecting rod 121, to move. Since the first sliding frame 122 is slidably connected to the connecting rod 121, and the sliding member 126 is slidably connected to the first sliding frame 122, the first sliding frame 122 slides horizontally on the connecting rod 121. This movement of the sliding frame causes the lifting mechanism 2 mounted on the sliding frame to move. The telescopic assembly 12 enables the horizontal movement and adjustment of the lifting mechanism 2, the telescopic mechanism 3 connected to the lifting mechanism 2, and the treatment head 5.

[0040] The lifting mechanism 2 includes a second sliding frame 21 and a third sliding frame 22. The second sliding frame 21 and the third sliding frame 22 are slidably engaged in the vertical direction. The third sliding frame 22 slides vertically on the second sliding frame 21. The two ends of the bottom of the second sliding frame 21 are respectively fixedly connected to the two moving rods 13. The telescopic mechanism 3 is installed on the top of the third sliding frame 22. Because the third sliding frame 22 slides vertically on the second sliding frame 21, the telescopic mechanism 3 installed on the third sliding frame 22 can move vertically.

[0041] The second sliding frame 21 has multiple screw holes, and the third sliding frame 22 has bolts. The bolts are adapted to the screw holes and are detachably connected. The multiple screw holes are evenly distributed vertically, and the engagement of the bolts with the screw holes facilitates the fixing of the third sliding frame 22 to the second sliding frame 21. When the bolts are removed from the screw holes, the third sliding frame 22 slides on the second sliding frame 21; when the third sliding frame 22 slides to the designated position, the bolts are inserted into the screw holes and tightened to fix the third sliding frame 22 to the second sliding frame 21.

[0042] See Figure 5The telescopic mechanism 3 includes a support frame assembly 31 and a second lead screw 32 passing through one side of the support frame assembly 31. The support frame assembly 31 is threadedly connected to the second lead screw 32. One end of the support frame assembly 31 is fixedly connected to the upper end of the lifting mechanism 2. One end of the second lead screw 32 is rotatably connected to the treatment head 5 via a second bearing, and the other end passes through and is rotatably connected to the drive assembly 33. The drive assembly 33 is used to drive the second lead screw 32 to rotate. The treatment head 5 is also provided with a plurality of support rods 35. The support rods 35 rotate through the support frame assembly 31 and are slidably connected to the support frame assembly 31. The support rods 35 are used to support and fix the treatment head 5. The drive assembly 33 is provided with a second handle 34. When the second handle 34 is rotated, the drive assembly 33 is started, which drives the second lead screw 32 to rotate. Due to the threaded connection between the second lead screw 32 and the support frame assembly 31, the second lead screw 32 and the support frame assembly 31 are relatively displaced. Since the support frame assembly 31 is fixed, the second lead screw 32 and the treatment head 5 connected to the second lead screw 32 move in the horizontal direction. During the movement, the support rod 35 passes through the support frame assembly 31 and slides on the support frame assembly 31, while the second lead screw 32 passes through the drive assembly 33.

[0043] In this embodiment, the top of the third sliding frame 22 of the lifting mechanism 2 is fixedly connected to the second connecting member of the telescopic mechanism 3.

[0044] Furthermore, a radiotherapy simulation device also includes a fixing rod 6, one end of which is fixedly connected to the first sliding frame 122, and the other end is fixedly connected to the second sliding frame 21. The fixing rod 6 forms a triangular structure with the first sliding frame 122 and the second sliding frame 21, which improves the stability of the second sliding frame 21.

[0045] The working principle of this utility model is as follows: First, the locking member 113 is opened, so that the locking member 113 is in a free state, and the third connecting member 111 starts to rotate around the center of the rotating assembly 11, rotating to the specified scale; since the third connecting member 111 is fixedly connected to the connecting rod 121, the rotation of the third connecting member 111 drives the connecting rod 121 to make a circular motion. Since the connecting rod 121 is slidably connected to the first sliding frame 122, the rotation of the connecting rod 121 drives the first sliding frame 122 to rotate; since the connecting rod 121 with rollers 14 is installed on both sides of the first sliding frame 122, the rollers 14 roll along with the first sliding frame 122 during the rotation of the first sliding frame 122, providing support for the first sliding frame 122; due to the rotation of the first sliding frame 122, the lifting mechanism 2 installed on the first sliding frame 122 and the telescopic mechanism 3 installed on the lifting mechanism 2 also rotate; when the rotation reaches the specified position, the locking member 113 is locked, and then the locking mechanism on the roller 14 is closed to prevent the roller 14 from moving.

[0046] Then, the first handle 125 is rotated. The rotation of the first handle 125 drives the rotation of the first lead screw 124. Due to the rotation of the first lead screw 124 and the threaded connection between the first lead screw 124 and the first connecting member 123, the first connecting member 123 and the first lead screw 124 move relative to each other. Specifically, the first connecting rod 121 drives the first sliding frame 122, which is fixedly connected to the first connecting rod 121, to move. Since the first sliding frame 122 is slidably connected to the connecting rod 121 and the sliding member 126 is slidably connected to the first sliding frame 122, the first sliding frame 122 slides horizontally on the connecting rod 121. The movement of the sliding frame drives the lifting mechanism 2 installed on the sliding frame to move horizontally, thereby realizing the telescopic mechanism 3 connected to the lifting mechanism 2. The treatment head 5 connected to the telescopic mechanism 3 performs the first horizontal movement adjustment.

[0047] Then, loosen the bolts on the third sliding frame 22 of the lifting mechanism 2, slide the third sliding frame 22 to move it vertically to the designated position, and then tighten the bolts into the corresponding screw holes to fix the third sliding frame 22. In this adjustment, the third sliding frame 22 adjusts its vertical position relative to the second sliding frame 21. The vertical movement of the third sliding frame 22 drives the telescopic mechanism 3 mounted on it to move vertically, thus achieving vertical adjustment of the telescopic mechanism 3.

[0048] Then, turning the second handle 34 activates the drive assembly 33, which in turn rotates the second lead screw 32. Due to the threaded connection between the second lead screw 32 and the support frame assembly 31, relative displacement occurs between them. Since the support frame assembly 31 remains stationary, the second lead screw 32 and the treatment head 5 connected to it move further horizontally. During this movement, the support rod 35 passes through the support frame assembly 31 and slides on it, while the second lead screw 32 passes through the drive assembly 33. This further extension and retraction of the treatment head 5 brings it closer to the patient's treatment area, increasing the simulation's accuracy.

[0049] In summary, the simulated treatment device provided by this novel device can adjust the position of the treatment head 5 twice in the horizontal direction, and also has vertical adjustment and treatment angle adjustment. The entire device has high adjustability and a wide adjustment range, which can meet the simulation test of multiple different treatment rooms, while improving the accuracy of simulated treatment.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A radiotherapy simulation device, characterized in that, The device includes a bed body (4), a rotating and moving mechanism (1), a lifting mechanism (2), and a telescopic mechanism (3). The rotating and moving mechanism (1) is located in front of the head of the bed body (4) and rotates around the bed body (4). The lifting mechanism (2) is installed on the rotating and moving mechanism (1). The lower end of the lifting mechanism (2) is fixedly connected to the rotating and moving mechanism (1), and the upper end is equipped with the telescopic mechanism (3). A treatment head (5) is installed on the telescopic mechanism (3).

2. The radiotherapy simulation device as described in claim 1, characterized in that, The rotating moving mechanism (1) includes a rotating component (11) and a telescopic component (12) installed on the ground. The telescopic component (12) is fixedly connected to the rotating component (11) and moves in a circle around the center point of the rotating component (11). The telescopic component (12) has moving rods (13) on both sides. A roller (14) is provided at the bottom of one end of the moving rod (13), and the other end is fixedly connected to the telescopic component (12). Both moving rods (13) are fixedly connected to the bottom of the lifting mechanism (2).

3. The radiotherapy simulation device as described in claim 2, characterized in that, The rotating assembly (11) includes a third connector (111), a dial (112), and a locking member (113). The dial (112) is fixedly installed on the ground. The locking member (113) passes through the third connector (111) and the dial (112) and fixes the third connector (111). The third connector (111) is fixedly connected to the telescopic assembly (12). When the locking member (113) is in a free state, the third connecting member (111) rotates around the locking member (113). When the locking member (113) is in the locked state, the third connecting member (111) is fixed on the dial (112).

4. The radiotherapy simulation device as described in claim 3, characterized in that, The third connector (111) is provided with a pointer (114), the pointer (114) is fixedly connected to the third connector (111), the dial (112) is provided with a scale, and the pointer (114) points to the scale.

5. A radiotherapy simulation device as described in claim 3, characterized in that, The telescopic assembly (12) includes a connecting rod (121) and a first sliding frame (122). The connecting rod (121) and the first sliding frame (122) are slidably engaged in the horizontal direction. One end of the connecting rod (121) is fixedly connected to a third connecting member (111). Two moving rods (13) are respectively fixedly installed on both sides of the first sliding frame (122). One end of the first sliding frame (122) is provided with a first connecting member (123), and a first lead screw (124) is provided above it. One end of the first lead screw (124) passes through the first connecting member (123) and is fixedly connected to the first handle (125). The other end is rotatably connected to the sliding member (126) through a first bearing. The first connecting member (123) is threadedly engaged with the first lead screw (124), and the sliding member (126) is slidably engaged with the first sliding frame (122).

6. The radiotherapy simulation device as described in claim 5, characterized in that, The first sliding frame (122) has a first sliding groove (127) on its upper surface, and the sliding member (126) is slidably connected to the first sliding groove (127).

7. A radiotherapy simulation treatment device as described in claim 6, characterized in that, The lifting mechanism (2) includes a second sliding frame (21) and a third sliding frame (22). The second sliding frame (21) and the third sliding frame (22) slide in a vertical direction. The two ends of the bottom of the second sliding frame (21) are fixedly connected to the two moving rods (13) respectively. The telescopic mechanism (3) is installed on the top of the third sliding frame (22).

8. A radiotherapy simulation device as described in claim 7, characterized in that, The second sliding frame (21) is provided with multiple screw holes, and the third sliding frame (22) is provided with bolts, which are adapted to the screw holes.

9. A radiotherapy simulation device as described in claim 1, characterized in that, The telescopic mechanism (3) includes a support frame assembly (31) and a second lead screw (32) passing through one side of the support frame assembly (31). The support frame assembly (31) is threadedly connected to the second lead screw (32). One end of the support frame assembly (31) is fixedly connected to the upper end of the lifting mechanism (2). One end of the second lead screw (32) is rotatably connected to the treatment head (5) through a second bearing, and the other end passes through the drive assembly (33) and is rotatably connected to the drive assembly (33). The drive assembly (33) is used to drive the second lead screw (32) to rotate.

10. A radiotherapy simulation treatment device as described in claim 7, characterized in that, It also includes a fixing rod (6), one end of which is fixedly connected to the first sliding frame (122), and the other end is fixedly connected to the second sliding frame (21).

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