Fixing device of source applicator

Abstract

The utility model discloses a fixing device of a source applicator, which comprises a foot supporting pad bottom plate, a threaded column is in threaded connection with one side in the foot supporting pad bottom plate, the top end of the threaded column extends to the outside of the foot supporting pad bottom plate and is provided with a base, a linkage rod is arranged on the outer wall of one side of the base, a first threaded hole is formed in the linkage rod, and a second threaded hole is formed in the first threaded hole. A second threaded connector is installed in the first threaded hole in a threaded mode, one end of the second threaded connector extends out of the first threaded hole and is provided with a first open ball, the outer side of the first open ball is movably connected with a first rotating seat body, and a first connecting rod is arranged at the top end of the first rotating seat body; a second rotating seat body is arranged at the end, away from the first rotating seat body, of the first connecting rod. The fixing device is easy to operate, the use convenience of the fixing device is improved, and 360-degree rotation of the linkage seat body can be realized in the space, so that the source applicator fixing device is good in position adjustability and accurate in positioning.

Description

Technical Field

[0001] The utility model relates to the technical field of medical treatment, in particular to a fixing device for a source applicator. Background Technique

[0002] With the development of tumor radiotherapy technology, radiotherapy has been widely applied to tumor treatment. Brachytherapy is an essential means for cervical cancer and interstitial radiotherapy.

[0003] However, brachytherapy has strict requirements on the relative positions of the radiation source and the disease. During the treatment process, if the position of the source applicator shifts, it will greatly affect the quality of brachytherapy, resulting in insufficient irradiation of the tumor tissue or even excessive irradiation of normal tissue organs, thus affecting the treatment effect. The fixing device of the traditional source applicator adjusts the position of the source applicator fixing frame through three locking nuts, making the operation of such a device relatively complex and inconvenient to use, and it needs to be improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fixing device for a source applicator to solve the problem that the fixing device of the traditional source applicator adjusts the position of the source applicator fixing frame through three locking nuts, making the operation of such a device relatively complex and inconvenient to use as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A fixing device for a source applicator, including a footrest pad bottom plate. One side inside the footrest pad bottom plate is threadedly connected with a threaded column. The top end of the threaded column extends to the outside of the footrest pad bottom plate and is provided with a base. One side of the outer wall of the base is provided with a linkage rod. The inside of the linkage rod is provided with a first threaded hole. A second threaded joint is threadedly installed inside the first threaded hole. One end of the second threaded joint extends to the outside of the first threaded hole and is provided with a first open ball. The outside of the first open ball is movably connected with a first rotating seat body. The top end of the first rotating seat body is provided with a first connecting rod. One end of the first connecting rod away from the first rotating seat body is provided with a second rotating seat body. One end of the second rotating seat body away from the first connecting rod is provided with a second connecting rod. One side of the outer wall of the second rotating seat body is provided with a linkage nut.

[0006] Preferably, a hexagonal nut is provided on the outer wall at the lower end of the base, and the bottom end of the hexagonal nut touches the top end of the footrest pad bottom plate. By the bottom end of the hexagonal nut contacting the upper surface of the footrest pad bottom plate, the phenomenon of loosening after the threaded column is tightened is reduced.

[0007] Preferably, a third rotating seat body is provided at one end of the second connecting rod away from the second rotating seat body. A second open ball is movably connected inside the third rotating seat body. Through the setting of the second open ball, the angle of the linkage seat body can be adjusted.

[0008] Preferably, the top end of the second open ball extends to the outside of the third rotating seat body and is provided with a first threaded joint. A linkage seat body is arranged on the outer side of the first threaded joint. Through the setting of the first threaded joint, the linkage seat body can be assembled by screwing in cooperation with the second threaded hole.

[0009] Preferably, a second threaded hole is provided at the bottom of the linkage seat body. The second threaded hole is threadedly connected with the first threaded joint. Through the setting of the second threaded hole, the linkage seat body can be assembled by screwing in cooperation with the first threaded joint.

[0010] Preferably, a U-shaped channel is provided at the upper end inside the linkage seat body. A triangular channel is provided on one inner wall at the upper end of the linkage seat body. Through the setting of the U-shaped channel, one end of the applicator can be placed.

[0011] Preferably, a fixed knob clamping member is threadedly installed on the outer wall of one side of the linkage seat body. One end of the fixed knob clamping member extends into the U-shaped channel. Through the setting of the fixed knob clamping member, one end of the applicator can be clamped and placed inside the U-shaped channel.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The fixing device of the applicator not only makes the operation of the fixing device simple and improves the convenience during the use of the fixing device, but also can realize the 360-degree rotation of the linkage seat body in space, so that the position adjustability of the applicator fixing device is good and the positioning is accurate;

[0013] (1) The position of the applicator fixing frame can be adjusted by using a linkage nut for linkage control, and the fixing device is not easy to slide or move. Compared with the traditional method of using three locking nuts to adjust the position of the applicator fixing frame, the operation of the present fixing device is simple and the convenience during the use of the fixing device is improved;

[0014] (2) Through the settings of the first open ball, the second open ball, the first rotating seat body and the third rotating seat body, and arc-shaped channels are arranged inside the first rotating seat body and the third rotating seat body, the 360-degree rotation of the linkage seat body can be realized in space, so that the position adjustability of the applicator fixing device is good and the positioning is accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the present utility model;

[0016] Figure 2Schematic diagram of the base structure of the present utility model;

[0017] Figure 3 Schematic diagram of the structure of the first connecting rod and the second connecting rod of the present utility model;

[0018] Figure 4 Schematic diagram of the structure of the linkage seat body of the present utility model.

[0019] In the figure: 1. Footrest pad bottom plate; 2. Base; 201. Hexagonal nut; 202. Linkage rod; 3. First opening ball; 4. First rotating seat body; 5. First connecting rod; 6. Second rotating seat body; 7. Linkage nut; 8. Second connecting rod; 9. Third rotating seat body; 10. Second opening ball; 11. Fixed knob clamping piece; 12. Threaded column; 13. First threaded hole; 1401. First threaded joint; 1402. Second threaded joint; 15. Linkage seat body; 16. Second threaded hole; 17. Triangular channel; 18. U-shaped channel. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4 , an embodiment provided by the present utility model: A fixing device for a applicator, including a footrest pad bottom plate 1, one side inside the footrest pad bottom plate 1 is threadedly connected with a threaded column 12, the top end of the threaded column 12 extends to the outside of the footrest pad bottom plate 1 and is provided with a base 2, and a hexagonal nut 201 is provided on the outer wall of the lower end of the base 2, and the bottom end of the hexagonal nut 201 touches the top end of the footrest pad bottom plate 1;

[0022] During use, the bottom end of the hexagonal nut 201 contacts the upper surface of the footrest pad bottom plate 1 to reduce the phenomenon of loosening after the threaded column 12 is tightened;

[0023] On the outer wall of one side of the base 2, there is a linkage rod 202. Inside the linkage rod 202, there is a first threaded hole 13. Inside the first threaded hole 13, a second threaded joint 1402 is threadedly installed. One end of the second threaded joint 1402 extends to the outside of the first threaded hole 13 and is provided with a first open ball 3. The outside of the first open ball 3 is movably connected to a first rotating seat body 4. At the top of the first rotating seat body 4, there is a first connecting rod 5. One end of the first connecting rod 5 away from the first rotating seat body 4 is provided with a second rotating seat body 6. One end of the second rotating seat body 6 away from the first connecting rod 5 is provided with a second connecting rod 8. One end of the second connecting rod 8 away from the second rotating seat body 6 is provided with a third rotating seat body 9. Inside the third rotating seat body 9, a second open ball 10 is movably connected;

[0024] During use, due to the setting of the second open ball 10, the angle of the linkage seat body 15 can be adjusted;

[0025] The top end of the second open ball 10 extends to the outside of the third rotating seat body 9 and is provided with a first threaded joint 1401. The outside of the first threaded joint 1401 is provided with a linkage seat body 15;

[0026] During use, due to the setting of the first threaded joint 1401, the linkage seat body 15 can be threadedly assembled in cooperation with the second threaded hole 16;

[0027] At the bottom of the linkage seat body 15, there is a second threaded hole 16, and the second threaded hole 16 is threadedly connected to the first threaded joint 1401;

[0028] During use, due to the setting of the second threaded hole 16, the linkage seat body 15 can be threadedly assembled in cooperation with the first threaded joint 1401;

[0029] At the upper end inside the linkage seat body 15, there is a U-shaped channel 18. On one side inner wall at the upper end of the linkage seat body 15, there is a triangular channel 17;

[0030] During use, due to the setting of the U-shaped channel 18, one end of the applicator can be placed;

[0031] On the outer wall of one side of the linkage seat body 15, a fixed knob clamping piece 11 is threadedly installed. One end of the fixed knob clamping piece 11 extends to the inside of the U-shaped channel 18;

[0032] During use, due to the setting of the fixed knob clamping piece 11, one end of the applicator can be clamped and placed inside the U-shaped channel 18;

[0033] On the outer wall of one side of the second rotating seat body 6, there is a linkage nut 7.

[0034] When the embodiment of the present application is in use, first, through the settings of the first open ball 3 and the second open ball 10, the first rotating seat body 4 can be located outside the first open ball 3 for omnidirectional rotation, and the third rotating seat body 9 can be located outside the second open ball 10 for omnidirectional rotation. The settings of the second rotating seat body 6 and the linkage nut 7 can adjust the angle between the first connecting rod 5 and the second connecting rod 8. Different tightening degrees of the linkage nut 7 correspond to different states of the second rotating seat body 6. The loose state of the linkage nut 7 represents that the second rotating seat body 6 is in an unlocked state. At this time, the first connecting rod 5 and the second connecting rod 8 can be rotated arbitrarily to adjust their angles as needed; the relatively tight state of the linkage nut 7 represents the preliminary fixed state of the second rotating seat body 6. At this time, the spatial positions of the first connecting rod 5 and the second connecting rod 8 can be adjusted to a certain extent; and the very tight state of the linkage nut 7 represents that the second rotating seat body 6 is in a fixed state. At this time, the spatial positions of the first connecting rod 5 and the second connecting rod 8 cannot be adjusted to achieve the effect of precisely positioning the applicator. After that, the threaded post 12 is screwed into the inside of the footrest pad bottom plate 1, and the bottom end of the hexagon nut 201 contacts the upper surface of the footrest pad bottom plate 1. Also, since the second threaded joint 1402 is screwed into the first threaded hole 13 and the first threaded joint 1401 is screwed into the second threaded hole 16, it is easy to quickly assemble the various components of this fixing device. Finally, through the settings of the triangular channel 17 and the U-shaped channel 18, when one end of the applicator is placed in the U-shaped channel 18, the fixing knob clamping member 11 can be screwed to clamp the applicator by its clamping component to achieve the purpose of positioning and placing the applicator, thereby completing the use of this fixing device.

Claims

1. A fixing device for a source applicator, characterized in that: It includes a footrest pad bottom plate (1). One side inside the footrest pad bottom plate (1) is threadedly connected with a threaded column (12). The top end of the threaded column (12) extends to the outside of the footrest pad bottom plate (1) and is provided with a base (2). On the outer wall of one side of the base (2), there is a linkage rod (202). Inside the linkage rod (202), there is a first threaded hole (13). Inside the first threaded hole (13), a second threaded joint (1402) is threadedly installed. One end of the second threaded joint (1402) extends to the outside of the first threaded hole (13) and is provided with a first opening ball (3). The outside of the first opening ball (3) is movably connected with a first rotating seat body (4). At the top of the first rotating seat body (4), there is a first connecting rod (5). One end of the first connecting rod (5) far from the first rotating seat body (4) is provided with a second rotating seat body (6). One end of the second rotating seat body (6) far from the first connecting rod (5) is provided with a second connecting rod (8). On the outer wall of one side of the second rotating seat body (6), there is a linkage nut (7).

2. The fixing device of a source applicator according to claim 1, characterized in that: On the outer wall of the lower end of the base (2), there is a hexagonal nut (201), and the bottom end of the hexagonal nut (201) touches the top end of the footrest pad bottom plate (1).

3. The fixing device of a radioactive source applicator according to claim 1, characterized in that: One end of the second connecting rod (8) far from the second rotating seat body (6) is provided with a third rotating seat body (9), and inside the third rotating seat body (9), a second opening ball (10) is movably connected.

4. The fixing device of a radioactive source applicator according to claim 3, wherein: The top end of the second opening ball (10) extends to the outside of the third rotating seat body (9) and is provided with a first threaded joint (1401), and on the outside of the first threaded joint (1401), there is a linkage seat body (15).

5. The fixing device of a radioactive source applicator according to claim 4, characterized in that: At the bottom of the linkage seat body (15), there is a second threaded hole (16), and the second threaded hole (16) is threadedly connected with the first threaded joint (1401).

6. The fixing device of a radioactive source applicator according to claim 4, characterized in that: Inside the upper end of the linkage seat body (15), there is a U-shaped channel (18), and on one side inner wall of the upper end of the linkage seat body (15), there is a triangular channel (17).

7. The fixing device of a radiation source applicator according to claim 5, characterized in that: On the outer wall of one side of the linkage seat body (15), a fixed knob clamping part (11) is threadedly installed, and one end of the fixed knob clamping part (11) extends to the inside of the U-shaped channel (18).

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