An appendage stent

Abstract

The utility model discloses an appendix support, including leading in device, moving device and support, the movable moving device is arranged in the leading in device, the output of leading in device is provided with the support, the moving device can drive the support to export outward through leading in device, above all, can prevent the component unexpected and hurt that comes out, can carry out the fine adjustment of support to the support design and fit appendix lumen structure, can better fixed, and the device simple operation realizes the single -handed operation of main knife doctor, and the other hand can operate endoscope, need not auxiliary tool, improve operation efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of appendiceal stent technology, specifically to an appendiceal stent. Background Technology

[0002] Existing appendiceal stent implantation techniques still have many problems. The operation is complex and relies on auxiliary tools. Current stent delivery systems usually require two hands to operate and may require additional auxiliary instruments such as guide wires and pushers, which increases the number of surgical steps and the difficulty of operation, and affects the efficiency of the operation.

[0003] Insufficient stent release precision: Due to the lack of a precise fine-tuning mechanism, the stent may shift position during release, leading to poor fit and increasing the risk of stent displacement or detachment. Some moving parts of the delivery device may directly contact the appendix lumen, increasing the risk of tissue damage or perforation and affecting surgical safety. Traditional stent designs may not be able to fully match the anatomical structure of the appendix, which is thicker at the proximal end and thinner at the distal end, resulting in loose fit and affecting long-term stability. Utility Model Content

[0004] The purpose of this invention is to provide an appendiceal stent to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an appendix stent, comprising an insertion device, a moving device, and a stent, wherein the insertion device is provided with a movable moving device, and the output end of the insertion device is provided with a stent, and the moving device can drive the stent to be output outward through the insertion device.

[0006] Preferably, the inlet device includes a conduit, a ring, a cavity, a first circular plate, a groove, and drainage holes. A ring is fixedly provided on both sides of the outer wall of one end of the conduit, and a plurality of drainage holes are provided on both sides of the outer wall of the other end of the conduit. A through cavity is provided inside the conduit, and a first circular plate is fixedly provided in the output end of the cavity. The outer wall of the first circular plate is connected and fixed to the inner wall of the conduit, and one end of the first circular plate is at a certain distance from the output end of the cavity. A through groove is provided in the center of the first circular plate.

[0007] Preferably, the moving device includes a flexible rod, a second circular plate, a third circular plate, and a spring. A movable flexible rod is disposed within the cavity. One end of the flexible rod is fixedly disposed with the second circular plate, and the other end of the flexible rod is fixedly disposed with the third circular plate. The outer wall of the other end of the flexible rod is disposed within a groove, such that one end of the first circular plate and one end of the third circular plate are at a certain distance. One end of the spring is fixedly disposed with one end of the outer wall of the third circular plate, and the other end of the spring is connected and fixed to one end of the first circular plate. The spring is disposed within the distance between the first and third circular plates, and the spring loop is sleeved on the outer wall of the flexible rod at a certain distance.

[0008] Preferably, pushing the second circular plate can cause the third circular plate to move outward, causing the spring to generate tension, and the third circular plate can be reset by the tension of the spring.

[0009] Preferably, a support is provided at one end of the first circular plate within the distance between the cavity output end and the cavity output end, and the support is fixed to the inner wall of the catheter output end by an expansion force.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] The circular ring on the outer wall of the catheter allows the surgeon to operate with one hand by using the thumb and middle finger, in conjunction with the index finger-driven movement device. The other hand can operate the endoscope without the need for auxiliary tools, significantly simplifying the surgical procedure. The catheter is flexible and conforms to the intestinal structure, and the circular ring design conforms to the mechanics of finger grip, reducing operator fatigue.

[0012] The flexible rod, circular plate, and spring of the moving device move entirely within the cavity, avoiding direct contact with the appendix lumen and reducing the risk of tissue damage. After pushing the stent, the spring automatically pulls the third circular plate back to its original position to prevent accidental dislodgement of components and injury. When the stent is halfway out, it still maintains a fixing force with the inner wall of the catheter, allowing doctors to fine-tune the position and improve placement accuracy.

[0013] The stent's shape, which is thicker at the proximal end and thinner at the distal end, matches the natural structure of the appendix. It fits tightly against the tube wall through expansion force, significantly reducing the risk of displacement. The stent is fixed to the catheter output end by expansion force, avoiding tissue compression caused by rigid connection. The integrated design of the insertion device and the movement device reduces the number of instrument changes and shortens the operation time.

[0014] In summary, this device can prevent accidental dislodgement of components and cause injury, allows for fine-tuning of the stent, and its stent design conforms to the appendix lumen structure for better fixation. The device is easy to operate, allowing the surgeon to operate it with one hand while using the other hand to operate the endoscope, without the need for auxiliary tools, thus improving surgical efficiency and precision. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the inlet device structure of this utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the output end of the inlet device of this utility model.

[0018] Figure 4 This is a schematic diagram of the flexible rod structure of the mobile device of this utility model;

[0019] Figure 5This is a schematic diagram of the mobile terminal connection component of the mobile device of this utility model.

[0020] In the diagram: 1. Inlet device, 2. Moving device, 3. Support, 11. Conduit, 12. Ring, 13. Cavity, 14. First circular plate, 15. Groove, 16. Drainage hole, 21. Flexible rod, 22. Second circular plate, 23. Third circular plate, 24. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides an appendiceal stent technical solution, including an insertion device 1, a moving device 2, and a stent 3. The insertion device 1 contains a movable moving device 2. The design of the moving device 2 allows the moving end to operate within the insertion device 1 without any contact with the patient's appendiceal lumen, thus improving the safety of the surgery. The output end of the insertion device 1 contains a stent 3. The moving device 2 can drive the stent 3 outward through the insertion device 1. This device allows the surgeon to operate with one hand in conjunction with an endoscope, without any auxiliary surgical tools. The combination of the insertion device 1 and the moving device 2 makes the operation simple and convenient.

[0023] As a preferred embodiment, the infusion device 1 further includes a catheter 11, a ring 12, a cavity 13, a first circular plate 14, a groove 15, and drainage holes 16. The catheter 11 is flexible and conforms to the human body structure, allowing it to move within the intestine. Rings 12 are fixedly installed on both sides of the outer wall of one end of the catheter 11. The design of the rings 12 conforms to the human body structure, allowing the surgeon's thumb and middle finger to provide support. Several drainage holes 16 are opened on both sides of the outer wall of the other end near the catheter 11. The opening of the drainage holes can prevent drainage fluid from blocking the lumen, causing increased pressure in the appendix lumen and secondary damage to the appendix, and also increases practicality. A through cavity 13 is opened inside the catheter 11. A first circular plate 14 is fixedly installed in the output end of the cavity 13. The outer wall of the first circular plate 14 is connected and fixed to the inner wall of the catheter 11, and one end of the first circular plate 14 is a certain distance from the output end of the cavity 13. A through groove 15 is opened in the center of the first circular plate 14, allowing other components to move more easily.

[0024] As a preferred embodiment, the moving device 2 further includes a flexible rod 21, a second circular plate 22, a third circular plate 23, and a spring 24. The movable flexible rod 21 is disposed within the cavity 13. The second circular plate 22 is fixedly disposed at one end of the flexible rod 21 and can be pushed by the surgeon's index finger. The third circular plate 23 is fixedly disposed at the other end of the flexible rod 21, and the outer wall of the other end of the flexible rod 21 is disposed within the groove 15, so that one end of the first circular plate 14 and one end of the third circular plate 23 are at a certain distance. One end of the spring 24 is fixedly disposed at one end of the outer wall of the third circular plate 23, and the other end of the spring 24 is connected and fixed to one end of the first circular plate 14. The spring 24 is disposed within the distance between the first circular plate 14 and the third circular plate 23, and the spring 24 is looped around the outer wall of the flexible rod 21 at a certain distance. The flexible rod 21 has a certain degree of rigidity, and when the second circular plate 22 is pushed, the third circular plate 23 can be moved through the flexible rod 21.

[0025] As a preferred option, pushing the second circular plate 22 further moves the third circular plate 23 outward, causing the spring 24 to generate tension. The spring 24 can generate tension with a gentle push, without requiring a large pushing force, and the third circular plate 23 can be reset by the tension of the spring 24. This structural design can return the third circular plate 23 to its original position, preventing the third circular plate 23 from moving out of the device and causing damage to the patient's appendix lumen, thus improving the safety of the operation.

[0026] As a preferred option, a further provision is made of a support 3 within the distance between one end of the first circular plate 14 and the output end of the cavity 13. The support 3 is fixed to the inner wall of the output end of the catheter 11 by the expansion force. The support 3 is designed to be conical, with a slightly larger diameter at the proximal end and gradually tapering at the distal end. This design can better adapt to the shape characteristics of the appendix, which is thicker at the proximal end and thinner at the distal end, so that the support 3 fits more tightly with the appendix wall and reduces the displacement of the support.

[0027] Its detailed connection method is a well-known technology in the field. The following mainly introduces the working principle and process. The specific operation is as follows: This device allows the surgeon to operate with one hand. The surgeon uses the endoscope with one hand, and the thumb and middle finger of the other hand are both placed inside the ring 12. The surgeon can use this device with one hand without other auxiliary tools. When the output end of this device reaches the designated position in the appendix lumen where the appendix stent needs to be installed, the second circular plate 22 is squeezed by the index finger, which drives the third circular plate 23 through the flexible rod 21 to push the stent 3 out halfway. The expansion can be fixed inside the output end of the catheter 11. When the stent 3 is pushed out halfway, there is a certain fixing force with the output end of the catheter 11. The surgeon can make fine adjustments to improve the accuracy of the appendiceal stent. Then the stent 3 is installed in the designated appendiceal lumen. At the same time, the spring 24 has a pulling force due to the pushing of the third circular plate 23, and the spring 24 pulls the third circular plate 23 back to its original position, which improves the safety of the appendiceal stent installation. The third circular plate 23 works in the cavity 13 throughout the process and does not come into contact with the appendiceal lumen, thereby improving the safety of the operation.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An appendage stent, characterized by: It includes an inlet device (1), a moving device (2) and a bracket (3). The inlet device (1) is equipped with a moving device (2) that can move. The output end of the inlet device (1) is equipped with a bracket (3). The moving device (2) can drive the bracket (3) to output outward through the inlet device (1).

2. The appendiceal stent of claim 1, wherein: The inlet device (1) includes a conduit (11), a ring (12), a cavity (13), a first circular plate (14), a groove (15), and a drainage hole (16). A ring (12) is fixedly provided on both sides of the outer wall of one end of the conduit (11), and a plurality of drainage holes (16) are provided on both sides of the outer wall of the other end of the conduit (11). A through cavity (13) is provided inside the conduit (11), and a first circular plate (14) is fixedly provided inside the output end of the cavity (13). The outer wall of the first circular plate (14) is connected and fixed to the inner wall of the conduit (11), and one end of the first circular plate (14) is a certain distance from the output end of the cavity (13). A through groove (15) is provided in the center of the first circular plate (14).

3. An appendiceal stent according to claim 2, characterized in that: The moving device (2) includes a flexible rod (21), a second circular plate (22), a third circular plate (23), and a spring (24). The flexible rod (21) is provided in the cavity (13). One end of the flexible rod (21) is fixedly provided with the second circular plate (22), and the other end of the flexible rod (21) is fixedly provided with the third circular plate (23). The outer wall of the other end of the flexible rod (21) is provided in the groove (15), so that one end of the first circular plate (14) and one end of the third circular plate (23) are at a certain distance. One end of the outer wall of the third circular plate (23) is fixedly provided with one end of the spring (24). The other end of the spring (24) is connected and fixed to one end of the first circular plate (14). The spring (24) is located within the distance between the first circular plate (14) and the third circular plate (23), and the spring (24) is looped around the outer wall of the flexible rod (21) at a certain distance.

4. An appendiceal stent according to claim 3, characterized in that: Pushing the second circular plate (22) can cause the third circular plate (23) to move outward, causing the spring (24) to generate tension, and the third circular plate (23) can be reset by the tension of the spring (24).

5. An appendiceal stent according to claim 2, characterized in that: A bracket (3) is provided at one end of the first circular plate (14) within the distance between the output end of the cavity (13) and the bracket (3) is fixed to the inner wall of the output end of the conduit (11) by the expansion force.

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