Implanting navigation device for cervical cancer treatment

Abstract

The utility model relates to the field of radiotherapy auxiliary instruments, and discloses an implantation navigation device for cervical cancer treatment, which comprises an implantation catheter group, the outer side of the implantation catheter group is sleeved with a left sleeve, the right end of the left sleeve is fixedly connected with a connecting plate, and the right end of the connecting plate is fixedly connected with a right sleeve. A limiting cylinder is fixedly connected to the bottom end of the right sleeve, a limiting sleeve is connected to the right end of the planting guide pipe set in a sleeving mode, a connecting unit is arranged at the bottom of the limiting sleeve, and an L-shaped fixing frame is fixedly connected to the right end of the bottom face of the limiting cylinder. According to the utility model, through the cooperation of the limiting cylinder, the limiting sleeve, the connecting unit, the L-shaped fixing frame and the rubber pad, when the implantation catheter group is guided into the vagina of a patient, the whole implantation catheter group is limited, so that the movement of a plurality of catheters is kept synchronous, and the catheter positioned on the outer side is prevented from being blocked by the inner wall of the vagina to move to the right side; the planting efficiency is influenced.

Description

Technical Field

[0001] The utility model relates to the field of radiotherapy auxiliary equipment, in particular to an implantation navigation device for treating cervical cancer. Background Art

[0002] Cervical cancer is one of the most common malignant tumors in gynecology. The treatment of cervical cancer is mainly radiotherapy and surgery, supplemented by chemotherapy. The radiotherapy method is a combination of external radiotherapy, cavity radiotherapy, and interstitial radiotherapy. Interstitial radiotherapy is a treatment method that uses an implantation needle to install an implantation channel inside the tumor, which can further increase the radiation dose of the tumor tissue and reduce the radiation dose of normal tissue. Therefore, close-range implantation therapy has been increasingly widely used in clinical practice in recent years.

[0003] After searching, Chinese patent announcement number: CN219332982U discloses an insertion navigation device for the treatment of cervical cancer, including a fixed hoop and a sleeve to limit multiple insertion catheters, so that the catheters are in close contact with each other and can slide relatively freely. The contact surface between the insertion catheter and the tumor can form an individualized interpolation positioning surface according to the surface morphology of the tumor, conforming to the tumor. Each interpolation catheter is in direct contact with the tumor surface. The interpolation depth is easy to control during interpolation, which improves the insertion efficiency, reduces the difficulty, is highly feasible, and reduces the patient's pain.

[0004] During actual use of the above-mentioned implantation navigation device, when the implantation catheter is inserted into the patient's vagina, it is only limited by the sleeve and can move freely in the horizontal direction. If the end of the implantation catheter located on the outside and in contact with the inner wall of the vagina collides with the inner wall of the vagina, the movement of the implantation catheter located on the outside will be hindered, and then move backward relative to the entire device, causing the doctor to spend more time adjusting these catheters, affecting the implantation efficiency. Therefore, an implantation navigation device for cervical cancer treatment is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the present invention provides an insertion navigation device for the treatment of cervical cancer, which aims to improve the problem in the prior art that the catheter located on the outside is obstructed by the inner wall of the vagina during the insertion process and moves backward relative to the device as a whole, affecting the insertion efficiency.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an implantation navigation device for the treatment of cervical cancer, comprising an implantation catheter group, the outer side of the implantation catheter group is sleeved with a left sleeve, the right end of the left sleeve is fixedly connected to a connecting plate, the right end of the connecting plate is fixedly connected to a right sleeve, the bottom end of the right sleeve is fixedly connected to a limiting cylinder, the right end of the implantation catheter group is sleeved with a limiting sleeve, the bottom of the limiting sleeve is provided with a connecting unit, the connecting unit is used for relative movement and limitation between the limiting sleeve and the limiting cylinder, the right end of the bottom surface of the limiting cylinder is fixedly connected to an L-shaped fixing frame, and the right side surface of the limiting sleeve is fixedly connected to a rubber pad.

[0007] As a further description of the above technical solution:

[0008] A through hole is provided on the right side surface of the rubber pad, a screw hole is provided on the right side surface of the limiting sleeve, and a bolt is provided on the bottom of the L-shaped fixing frame.

[0009] As a further description of the above technical solution:

[0010] The connecting unit includes an elastic member fixedly connected to the left inner wall surface of the limiting cylinder, the right end of the elastic member is fixedly connected to a connecting block, and the bottom end of the limiting sleeve is fixedly connected to an extension block.

[0011] As a further description of the above technical solution:

[0012] The right sleeve is sleeved on the outside of the implantation catheter group.

[0013] As a further description of the above technical solution:

[0014] The upper end of the bolt passes through the L-shaped fixing frame, and the bolt is threadedly connected to the L-shaped fixing frame.

[0015] As a further description of the above technical solution:

[0016] The bolt and the screw hole are adapted to each other, and the through hole passes through the rubber pad.

[0017] As a further description of the above technical solution:

[0018] The connecting block is plugged into the interior of the limiting cylinder.

[0019] As a further description of the above technical solution:

[0020] The extension block is rotatably connected to the right side surface of the connection block.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, by cooperating with the setting of the limiting cylinder, limiting sleeve, connecting unit, L-shaped fixing frame and rubber pad, the insertion catheter group as a whole can be limited when the insertion catheter group is introduced into the patient's vagina, so that the movement of multiple catheters remains synchronized, avoiding the catheter located on the outside from being blocked by the inner wall of the vagina and moving to the right, affecting the efficiency of insertion, and the limiting sleeve can be moved to the bottom of the right end of the insertion catheter group to collect blood and tissue fluid flowing out of the catheter.

[0023] 2. In the present invention, the limit sleeve rotated to the horizontal position can be fixed by cooperating with the provided through holes, screw holes and bolts, so that the device remains stable as a whole during use, avoiding slight vibration of the limit sleeve, which may cause slight displacement of the device and affect the accuracy of the implantation navigation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of an implant navigation device for treating cervical cancer proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of a limiting cylinder, limiting sleeve and L-shaped fixing frame of an implant navigation device for treating cervical cancer proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of a frontal cross-sectional view of the interior of a limiting cylinder of an implant navigation device for treating cervical cancer proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of a limiting sleeve, a connecting block, an extending block and a rubber pad of an implant navigation device for treating cervical cancer proposed by the present invention.

[0028] Legend:

[0029] 1. Implantation catheter assembly; 2. Left sleeve; 3. Connecting plate; 4. Right sleeve; 5. Limiting cylinder; 6. Limiting sleeve; 61. Elastic member; 62. Connecting block; 63. Extension block; 7. L-shaped fixing bracket; 8. Rubber pad; 9. Through hole; 10. Screw hole; 11. Bolt. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1The utility model provides an embodiment: an implantation navigation device for treating cervical cancer, comprising an implantation catheter group 1, wherein the implantation catheter group 1 is composed of multiple catheters in a ring array, and the catheters can move relative to each other. The left end of the implantation catheter group 1 is arc-shaped as a whole, which is convenient for the implantation navigation device to enter the human body. The outer side of the implantation catheter group 1 is sleeved with a left sleeve 2, which is cylindrical and fits into the patient's vagina. The right end of the left sleeve 2 is fixedly connected to a connecting plate 3, and the right end of the connecting plate 3 is fixedly connected to a right sleeve 4, which is sleeved on the implantation catheter group 1. On the outside, the left sleeve 2 and the right sleeve 4 are set to limit the insertion catheter group 1 to prevent the insertion catheter group 1 from becoming loose, which affects the insertion efficiency. At the same time, the left sleeve 2 is fixedly connected to the right sleeve 4 through the connecting plate 3, and can be moved synchronously to connect the insertion catheter group 1 with the left sleeve 2 and introduce it into the patient's vagina. During the advancement process of the insertion catheter group 1, the insertion catheter that first contacts the tumor surface stops moving, and the insertion catheter that does not contact the tumor surface continues to move, and combined with image observation, it can be accurately moved to the tumor surface, that is, in close contact with the tumor surface.

[0032] Reference Figure 2-Figure 4 The bottom end of the right sleeve 4 is fixedly connected to the limiting sleeve 5, and the right end of the implantation catheter group 1 is sleeved with the limiting sleeve 6. The limiting sleeve 6 can limit the right end of the implantation catheter group 1 so that the multiple catheters remain aligned. When entering the patient's vagina, the limiting sleeve 6 can push the multiple catheters to move synchronously, so that the movement of the multiple catheters remains synchronized, avoiding the catheter located on the outside from being obstructed by the inner wall of the vagina, resulting in movement to the right relative to the entire device, causing the doctor to need more time to move and adjust the outer catheter, affecting the efficiency of implantation.

[0033] When the connecting block 62 moves to the right, it will pull the elastic member 61, so that the elastic member 61 stretches to generate elastic potential energy. In the initial state, the connecting block 62 will keep the right side surface aligned with the right side surface of the limiting cylinder 5 under the limiting support of the elastic member 61. The connecting block 62 is plugged into the inside of the limiting cylinder 5, and the connecting block 62 can perform linear movement in the left and right directions at the right end of the limiting cylinder 5. The elastic member 61 can limit the movement of the connecting block 62, so that the connecting block 62 can only perform linear movement in the left and right directions. The bottom end of the limiting sleeve 6 is fixedly connected to an extension block 63, which is rotatably connected to the right side surface of the connecting block 62. When the limiting sleeve 6 moves, it can drive the extension block 63 to move synchronously.

[0034] When the implant catheter group 1 is moved to the desired position as a whole, the doctor can pull the limiting sleeve 6 to drive the connecting block 62 to move to the right, and at the same time pull the elastic member 61 so that the limiting sleeve 6 can be separated from the implant catheter group 1, releasing the limitation of the implant catheter group 1 as a whole, and then can be rotated downward around the hinge with the connecting block 62 with the cooperation of the extension block 63. At this time, the limiting sleeve 6 will move to the lower right end of the implant catheter group 1 under the action of the elastic potential energy of the elastic member 61. When a small amount of bleeding occurs during implantation at the patient's tumor, part of the blood and tissue fluid will flow out to the right through the catheter. At this time, the limiting sleeve 6 can receive and collect the outflowing liquid to prevent the liquid from flowing onto the patient's body or bed and causing contamination.

[0035] The right end of the bottom surface of the limiting cylinder 5 is fixedly connected to an L-shaped fixing frame 7, and the right side surface of the limiting sleeve 6 is fixedly connected to a rubber pad 8. When the limiting sleeve 6 is rotated to a horizontal state, the L-shaped fixing frame 7 can support the bottom of the limiting sleeve 6, and the rubber pad 8 can buffer and protect the rotational movement of the limiting sleeve 6, thereby avoiding hard contact between the limiting sleeve 6 and the L-shaped fixing frame 7, causing slight vibration of the device, and then causing slight displacement of the device, affecting the accuracy of the planting navigation.

[0036] Reference Figure 3-Figure 4 A through hole 9 is provided on the right surface of the rubber pad 8, and the through hole 9 passes through the rubber pad 8. A screw hole 10 is provided on the right surface of the limiting sleeve 6, and the bolt 11 can be inserted into the screw hole 10 through the through hole 9. A bolt 11 is provided at the bottom of the L-shaped fixing frame 7, and the upper end of the bolt 11 passes through the L-shaped fixing frame 7. The bolt 11 is threadedly connected to the L-shaped fixing frame 7, and the bolt 11 and the screw hole 10 are adapted to each other. When the limiting sleeve 6 is rotated to a horizontal state, the bolt 11 can be aligned with the screw hole 10. At this time, the bolt 11 can be screwed to move upward into the screw hole 10 to fix the limiting sleeve 6, so that the device remains stable as a whole during use.

[0037] Working principle: The implantation catheter group 1 and the left sleeve 2 are introduced into the vagina together. When the left end of the implantation catheter group 1 is about to touch the tumor, it stops moving. During the introduction process, the limiting sleeve 6 can limit the implantation catheter group 1 as a whole, so that the movement of multiple catheters remains synchronized, avoiding the catheter located on the outside from being blocked by the inner wall of the vagina, resulting in movement to the right relative to the device as a whole, affecting the implantation efficiency. At this time, the doctor holds the limiting cylinder 5 tightly and pulls the limiting sleeve 6 on the right side to release the limitation of the implantation catheter group 1 as a whole, and rotates the limiting sleeve 6 to a horizontal state. At this time, the screw hole 10 will be aligned with the bolt 1 1 is aligned, and the bolt 11 can be screwed into the screw hole 10 to fix the limiting sleeve 6. At this time, the limiting sleeve 6 can collect the blood and tissue fluid flowing out of the catheter. Then, during the advancement of the implantation catheter group 1, the catheter that first contacts the tumor surface stops moving, and the catheter that does not contact the tumor surface continues to move. Combined with image observation, it can be accurately moved to the tumor surface, that is, in close contact with the tumor surface. Then, the implantation needle is introduced from the implantation catheter group 1, and the interpolation needle is accurately and effectively implanted into the tumor to form uniform and comprehensive coverage, and the implantation positioning is more accurate.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An implantation navigation device for treating cervical cancer, comprising an implantation catheter assembly (1), characterized in that: The outer side of the implantation catheter group (1) is sleeved with a left sleeve (2), the right end of the left sleeve (2) is fixedly connected to a connecting plate (3), the right end of the connecting plate (3) is fixedly connected to a right sleeve (4), the bottom end of the right sleeve (4) is fixedly connected to a limiting cylinder (5), the right end of the implantation catheter group (1) is sleeved with a limiting sleeve (6), the bottom of the limiting sleeve (6) is provided with a connecting unit, the connecting unit is used for relative movement and limiting between the limiting sleeve (6) and the limiting cylinder (5), the right end of the bottom surface of the limiting cylinder (5) is fixedly connected to an L-shaped fixing frame (7), and the right side surface of the limiting sleeve (6) is fixedly connected to a rubber pad (8).

2. The implant navigation device for cervical cancer treatment according to claim 1, characterized in that: A through hole (9) is provided on the right side surface of the rubber pad (8), a screw hole (10) is provided on the right side surface of the limiting sleeve (6), and a bolt (11) is provided at the bottom of the L-shaped fixing frame (7).

3. The implant navigation device for cervical cancer treatment according to claim 1, characterized in that: The connecting unit comprises an elastic member (61), the elastic member (61) is fixedly connected to the left inner wall surface of the limiting cylinder (5), the right end of the elastic member (61) is fixedly connected to a connecting block (62), and the bottom end of the limiting sleeve (6) is fixedly connected to an extension block (63).

4. The implant navigation device for cervical cancer treatment according to claim 1, characterized in that: The right sleeve (4) is sleeved on the outside of the implantation catheter assembly (1).

5. The implant navigation device for cervical cancer treatment according to claim 2, characterized in that: The upper end of the bolt (11) passes through the L-shaped fixing frame (7), and the bolt (11) and the L-shaped fixing frame (7) are threadedly connected.

6. The implantation navigation device for cervical cancer treatment according to claim 2, characterized in that: The bolt (11) and the screw hole (10) are adapted to each other, and the through hole (9) passes through the rubber pad (8).

7. The implantation navigation device for cervical cancer treatment according to claim 3, characterized in that: The connecting block (62) is plugged into the interior of the limiting cylinder (5).

8. The implantation navigation device for cervical cancer treatment according to claim 3, characterized in that: The extension block (63) is rotatably connected to the right side surface of the connection block (62).

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