A device for afterloading precise brachytherapy of cervical cancer

Abstract

The utility model discloses a kind of for cervical cancer's rear-mounted precision close-range treatment device, belong to the technical field of treatment equipment, including positioning plate, the positioning plate is equipped with through-hole, guiding column is installed in the through-hole, the inside both sides of the positioning plate are provided with adjusting hug device, the adjusting hug device passes through through-hole side wall, from both sides hug guiding column, the guiding column one end is provided with limit plate, the limit plate is located in the positioning plate side, the guiding column is equipped with central hole and several groups of side hole, central insertion pipe is installed in the central hole, side insertion pipe is installed in the side hole, the utility model discloses a kind of adapt to different patients use, improve the positioning effect of insertion needle, reduce the treatment device of influence to radiotherapy effect.

Description

Technical Field

[0001] This utility model relates to the field of treatment equipment technology, and in particular to a brachytherapy device for cervical cancer. Background Technology

[0002] With the development of tumor radiotherapy technology, brachytherapy has begun to be widely used in the treatment of malignant tumors. Especially for some patients with advanced cervical cancer who cannot undergo surgical treatment, radiotherapy is one of the most effective treatment methods, and brachytherapy plays a crucial role in the entire treatment process.

[0003] Due to the special anatomical structure of the vulva, conventional three-dimensional brachytherapy has drawbacks such as limited applicator sizes and poor needle fixation. Therefore, there is an urgent need for a precise brachytherapy device for cervical cancer treatment. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the technical problem to be solved by this utility model is to propose a treatment device that is suitable for different patients, improves the positioning effect of the implanted needle, and reduces the impact on the radiotherapy effect.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This utility model provides a brachytherapy device for cervical cancer, including a positioning plate with a through hole and a guide post installed in the through hole. Adjustable clamping devices are provided on both sides inside the positioning plate, and the adjustable clamping devices pass through the side wall of the through hole and clamp the guide post from both sides.

[0007] A limiting plate is provided at one end of the guide post, and the limiting plate is located on one side of the positioning plate. The guide post has a central channel and several sets of side channels. A central insertion pipe is installed in the central channel, and a side insertion pipe is installed in the side channels.

[0008] The preferred technical solution of this utility model is that the adjusting clamping device includes two sets of limiting grooves opened along the inner wall of the through hole towards the positioning plate, and clamping plates are slidably connected in the two sets of limiting grooves. A rubber spring is provided on one side of the two sets of clamping plates away from each other, and the end of the rubber spring away from the clamping plate is fixed on the inner wall of the limiting groove.

[0009] The preferred technical solution of this utility model is that the limiting plate is provided with a central pipe inlet and a side pipe inlet, and multiple sets of side pipe inlets are provided and arranged around the central pipe inlet. The central channel and the side channels are provided in correspondence with the central pipe inlet and the side pipe inlet.

[0010] The preferred technical solution of this utility model is that the end of the guide post away from the positioning plate is in the shape of a hemisphere, and a plurality of pipe outlets are provided on the hemisphere, and the pipe outlets are arranged corresponding to the central channel and the side channel.

[0011] A preferred embodiment of this invention is that the positioning plate has a curved protrusion at the end away from the limiting plate.

[0012] A preferred embodiment of this invention is that a silicone sleeve is fitted onto the outer wall of the guide post.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention utilizes the action of a clamping plate and a rubber spring to select a guide post that is compatible with the patient. The clamping plate clamps the two sides of the guide post, thereby improving the stability of the guide post's position, providing an accurate position for subsequent needle insertion, improving the fixation effect of the needle, and increasing the efficiency of treatment. At the same time, it allows the guide post to fit against the vaginal wall, reducing patient discomfort during treatment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the treatment device structure provided in a specific embodiment of this utility model;

[0016] Figure 2 This is a side view of the structure of the treatment device provided in a specific embodiment of this utility model;

[0017] Figure 3 This is a cross-sectional view of the treatment device structure provided in a specific embodiment of this utility model;

[0018] Figure 4 This is a cross-sectional view of the treatment device structure provided in a specific embodiment of this utility model;

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Positioning plate; 11. Limiting groove; 12. Clamping plate; 13. Rubber spring; 2. Guide post; 21. Central channel; 22. Side channel; 23. Pipe outlet; 3. Limiting plate; 4. Curved protrusion; 5. Central pipe inlet; 6. Side pipe inlet. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] A brachytherapy device for cervical cancer includes a positioning plate 1 with a through hole and a guide post 2 installed in the through hole. Adjustable clamping devices are provided on both sides inside the positioning plate 1. The adjustable clamping devices pass through the side wall of the through hole and clamp the guide post 2 from both sides.

[0023] One end of the guide post 2 is provided with a limiting plate 3, which is located on one side of the positioning plate 1. The guide post 2 is provided with a central channel 21 and several sets of side channels 22. A central insertion pipe is installed in the central channel 21, and a side insertion pipe is installed in the side channels 22.

[0024] The limiting plate 3 has a central pipe inlet 5 and a side pipe inlet 6. Multiple sets of side pipe inlets 6 are provided and arranged around the central pipe inlet 5. The central channel 21 and the side channel 22 are arranged corresponding to the central pipe inlet 5 and the side pipe inlet 6. The guide post 2 is hemispherical at the end away from the positioning plate 1. Several sets of pipe outlets 23 are provided on the hemispherical shape, and the pipe outlets 23 are arranged corresponding to the central channel 21 and the side channel 22.

[0025] Before use, based on CT data and the patient's vaginal size, select a suitable guide post 2 and install it on the positioning plate 1. Adjust the clamping device to clamp the guide post 2 from both sides to fix its position, ensuring the stability and accuracy of subsequent treatment placement, improving treatment efficiency, and allowing the guide post 2 to conform to the vaginal wall, reducing patient discomfort during treatment. During use, based on CT data, confirm the patient's lesion area. Install the central implantation catheter and the lateral implantation catheter from the central catheter inlet 5 and the lateral catheter inlet 6 into the central channel 21 and the lateral channel 22, respectively. Slowly insert one end of the guide post 2 into the patient's vagina. The guide post 2 remains stable under the action of the clamping device, ensuring accurate insertion of the subsequent implantation needle, improving the fixation effect of the implantation needle and the treatment effect.

[0026] As a possible implementation of this solution, preferably, the adjusting clamping device includes two sets of limiting grooves 11 opened along the inner wall of the through hole towards the positioning plate 1, and clamping plates 12 are slidably connected in the two sets of limiting grooves 11. A rubber spring 13 is provided on one side of the two sets of clamping plates 12 away from each other, and the end of the rubber spring 13 away from the clamping plate 12 is fixed on the inner wall of the limiting groove 11.

[0027] Before use, select the corresponding guide post 2 according to the needs of different patients and install it on the positioning plate 1. Pass the guide post 2 through the two sets of clamping plates 12 until the limiting plate 3 on the guide post 2 abuts against the positioning plate 1. Under the action of the rubber spring 13, push the clamping plates 12 on both sides to clamp the guide post 2 from both sides to improve the support of the guide post 2, which facilitates the subsequent installation of the central implantation tube and the lateral implantation tube, so as to improve the accuracy of the needle insertion position and improve the radiotherapy effect and efficiency.

[0028] As a possible implementation of this solution, preferably, the positioning plate 1 is provided with a curved protrusion 4 at the end away from the limiting plate 3. The curved protrusion 4 fits the human body, improving the positioning effect of the treatment device during use and reducing patient discomfort.

[0029] As a possible implementation of this solution, preferably, a silicone sleeve is provided on the outer wall of the guide post 2. By providing the silicone sleeve, the guide post 2 can better fit the vaginal wall, reducing the patient's discomfort during the treatment process and alleviating the patient's pain.

[0030] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A brachytherapy device for cervical cancer, characterized in that: The system includes a positioning plate (1), which has a through hole and a guide post (2) installed in the through hole. Adjustable clamping devices are provided on both sides inside the positioning plate (1). The adjustable clamping devices pass through the side wall of the through hole and clamp the guide post (2) from both sides. One end of the guide post (2) is provided with a limiting plate (3), the limiting plate (3) is located on one side of the positioning plate (1), the guide post (2) is provided with a central channel (21) and several sets of side channels (22), a central insertion pipe is installed in the central channel (21), and a side insertion pipe is installed in the side channels (22).

2. The brachytherapy device for cervical cancer according to claim 1, characterized in that: The adjusting clamping device includes two sets of limiting grooves (11) opened along the inner wall of the through hole towards the positioning plate (1). Clamping plates (12) are slidably connected in the two sets of limiting grooves (11). Rubber springs (13) are provided on the side of the two sets of clamping plates (12) away from each other. The end of the rubber spring (13) away from the clamping plate (12) is fixed on the inner wall of the limiting groove (11).

3. The brachytherapy device for cervical cancer according to claim 1, characterized in that: The limiting plate (3) is provided with a central pipe inlet (5) and a side pipe inlet (6). Multiple sets of side pipe inlets (6) are provided and arranged around the central pipe inlet (5). The central channel (21) and the side channel (22) are provided in correspondence with the central pipe inlet (5) and the side pipe inlet (6).

4. The brachytherapy device for cervical cancer according to claim 1, characterized in that: The guide post (2) is hemispherical at the end away from the positioning plate (1), and several sets of pipe outlets (23) are provided on the hemispherical shape. The pipe outlets (23) are corresponding to the central channel (21) and the side channel (22).

5. A brachytherapy device for cervical cancer according to claim 1, characterized in that: The positioning plate (1) has a curved protrusion (4) at the end away from the limiting plate (3).

6. The brachytherapy device for cervical cancer according to claim 1, characterized in that: A silicone sleeve is fitted on the outer wall of the guide post (2).

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