Auxiliary broadening structure for appendix support

Abstract

The invention relates to the technical field of medical instruments, in particular to an auxiliary expanding structure of an appendix support. Which comprises a first support, a second support and a plurality of shaping pipe sleeves, and is characterized in that the second support is arranged on the first support in a clamped mode, the shaping pipe sleeves are arranged on the first support at intervals in the length direction of the first support, and a plurality of supporting rods are annularly arranged on the right side of the second support; the first support and the second support are each of a hollow pipeline structure, and inner cavities of the first support and the second support are communicated with each other. The first support can be bent to a proper angle to adapt to individual differences of the appendix and ensure smooth leading-in, the first limiting piece and the second limiting piece are reversely arranged to form stable limiting, the support is stable in the appendix, the second support and the supporting rod are used in a matched mode, accurate positioning is facilitated, stable supporting force is provided for expanding an appendix opening, and the appendix can be conveniently and rapidly expanded. The drainage channel is optimized through the through holes in the support, the drainage efficiency is improved, and the drainage effect is improved while the strength of the support is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an appendix stent assisted widening structure. Background Technology

[0002] Acute appendicitis is one of the most common acute abdominal conditions in clinical practice, and traditional treatment mainly involves surgical removal of the appendix. In recent years, with the continuous development of endoscopic technology, endoscopic retrograde appendicitis (ERAP) has been gradually applied in clinical practice as a minimally invasive, organ-preserving treatment. This technique involves using a colonoscope to enter the cecum through the natural orifice, locating the appendiceal opening, inserting a guidewire and balloon to dilate the narrowed area, and placing a biodegradable or temporary stent to achieve continuous drainage and decompression of the appendiceal lumen, thereby relieving inflammation and avoiding surgery.

[0003] However, in practice, successful placement of appendiceal stents still faces many challenges. Due to the small size and concealed location of the appendix opening, and the soft and easily collapsed walls of the appendix, there is a lack of effective auxiliary devices in current technology to stabilize and widen the appendix opening. Currently, most methods rely on guidewire guidance and temporary balloon dilation, but these methods are difficult to maintain the patency of the appendix lumen throughout the stent delivery process, leading to difficulties in stent advancement, inaccurate positioning, and even complications such as mucosal damage or perforation. Summary of the Invention

[0004] The purpose of this invention is to provide an appendix stent-assisted widening structure to solve problems such as the lack of effective auxiliary devices to stabilize and widen the appendix opening and inaccurate positioning.

[0005] To achieve this objective, the present invention adopts the following technical solution: An appendix stent-assisted widening structure is provided, comprising a first stent, a second stent, and a plurality of shaped tube sleeves. The second stent is snapped onto the first stent, and the plurality of shaped tube sleeves are spaced apart along the length of the first stent. A plurality of support rods are annularly arranged on the right side of the second stent. Both the first and second stents are hollow tubular structures with interconnected internal cavities. Each of the support rods has a limiting ball at its end, and each support rod has an opening groove on its inner side filled with a biodegradable medical adhesive. The support rods are attached to the outside of the second stent using the biodegradable medical adhesive.

[0006] As a preferred embodiment of an appendix stent assisted widening structure, the shaping sleeve uses nickel-titanium alloy spiral wire as the inner stabilizing structure and is covered with a medical silicone sheath on the outer layer. The plurality of shaping sleeves can be flexibly adjusted according to usage requirements to bend and shape the first stent.

[0007] As a preferred embodiment of an appendix stent-assisted widening structure, the first stent is provided with a plurality of first through holes spaced apart along its length.

[0008] As a preferred embodiment of an appendix stent-assisted widening structure, the second stent is provided with a plurality of second through holes spaced apart along its length.

[0009] As a preferred embodiment of an appendix stent-assisted widening structure, the diameter of the plurality of first through holes gradually decreases from the outside to the inside.

[0010] As a preferred embodiment of an appendix stent-assisted widening structure, the diameter of the plurality of second through holes gradually decreases from the outside to the inside.

[0011] As a preferred embodiment of an appendix stent-assisted widening structure, the first stent has a plurality of first limiting plates arranged in a ring on its rear side, and a plurality of second limiting plates arranged in a ring on its front side.

[0012] In a preferred embodiment of an appendix stent-assisted widening structure, the orientation of the plurality of first limiting plates is opposite to the orientation of the plurality of second limiting plates.

[0013] The beneficial effects of this invention are as follows: the first stent can be bent to a suitable angle by multiple shaped tube sleeves to adapt to individual differences in the appendix and ensure smooth insertion. The first and second limiting plates are set in opposite directions to form a stable limit, making the stent stable in position within the appendix. When used in conjunction with the second stent and support rod, it is easy to accurately position and provides stable support for widening the appendix opening. The through holes on the stent optimize the drainage channel and improve drainage efficiency. While ensuring the strength of the stent, the drainage effect is increased, allowing inflammatory substances in the appendix to be discharged more smoothly. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments of the present invention will be briefly described below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the appendix stent auxiliary widening structure according to an embodiment of the present invention.

[0016] Figure 2 This is a three-dimensional structural schematic diagram of another appendix stent-assisted widening structure according to an embodiment of the present invention.

[0017] In the picture: 1. First bracket; 2. Second bracket; 3. Shaping tube sleeve; 4. Support rod; 5. Limiting ball; 6. Opening groove; 7. First through hole; 8. Second through hole; 9. First limiting piece; 10. Second limiting piece. Detailed Implementation

[0018] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0020] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0021] In the description of this invention, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating a connection between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] like Figure 1 and Figure 2As shown, this invention provides a technical solution: an appendix stent-assisted widening structure, comprising a first stent 1, a second stent 2, and multiple shaping sleeves 3. A second stent 2 is snap-fitted onto the middle right side of the first stent 1. Multiple shaping sleeves 3 are spaced apart along the length of the first stent 1, with a total of four shaping sleeves 3. The shaping sleeves 3 use nickel-titanium alloy spiral wire as the inner stabilizing structure and are covered with a medical silicone sheath on the outer layer. The multiple shaping sleeves 3 can be flexibly adjusted according to usage requirements to achieve bending and shaping of the first stent 1, meeting the requirements for appendix stent morphology in different surgical scenarios. Both the first stent 1 and the second stent 2 are hollow tube structures, and their internal cavities are interconnected to facilitate communication within the appendix. For rapid external drainage, the right side of the second stent 2 is equipped with six rotating support rods 4 in a ring shape. The support rods 4 are evenly distributed to provide stable support for widening the appendix opening. Each support rod 4 has a limiting ball 5 at its end. The diameter of the limiting ball 5 is larger than the diameter of the support rod 4, which can effectively prevent the support rod 4 from being excessively inserted into the appendix tissue and causing unnecessary damage. Each support rod 4 has an opening groove 6 on its inner side, which is filled with a biodegradable medical adhesive. This adhesive has good biocompatibility and can gradually degrade over a certain period of time without causing long-term adverse effects on the human body. With this adhesive, the support rod 4 can be more firmly attached to the outside of the second stent 2 during insertion, which facilitates the insertion of the first stent 1 and the second stent 2.

[0023] like Figure 1 As shown, the first stent 1 has multiple first through holes 7 spaced apart along its length, and the second stent 2 has multiple second through holes 8 spaced apart along its length. The diameter of the multiple first through holes 7 gradually decreases from the outside to the inside, and the diameter of the multiple second through holes 8 gradually decreases from the outside to the inside. The multiple second through holes 8 and the first through holes 7 cooperate with each other to further optimize the drainage channel and improve the drainage efficiency. While ensuring the strength of the stent, it allows inflammatory substances in the appendix to be discharged more smoothly.

[0024] like Figure 2 As shown, a plurality of first limiting plates 9 are installed in a ring on the rear side of the first bracket 1, and a plurality of second limiting plates 10 are installed in a ring on the front side of the first bracket 1. The orientation of the first limiting plates 9 is opposite to that of the second limiting plates 10. The opposite orientation setting can form a more stable limiting effect, ensuring that the bracket maintains a stable position in the appendix and better plays the role of assisting dilation and drainage.

[0025] Working principle: After the stent system is placed into the appendix lumen, the curvature of the shaping sleeve 3 is adjusted so that the first stent 1 adapts to the natural curvature of the appendix, thereby improving the compliance and positioning accuracy of the placement. Subsequently, the biodegradable adhesive in the opening groove 6 begins to contact the tissue and gradually degrades. After the support rod 4 on the outside of the second stent 2 is released from fixation, it unfolds and evenly opens the appendix opening, ensuring short-term stable anchoring of the stent system. During this period, inflammatory fluid is efficiently discharged through the gradient drainage channel formed by the first through hole 7 and the second through hole 8. The bidirectional limiting effect of the first limiting piece 9 and the second limiting piece 10 helps to prevent displacement.

[0026] It should be stated that the above-described specific embodiments are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to the present invention. However, such variations, as long as they do not depart from the spirit of the present invention, should be within the scope of protection of the present invention. Furthermore, some terminology used in this specification and claims is not limiting, but merely for ease of description.

Claims

1. An appendix stent-assisted widening structure, comprising a first stent (1), a second stent (2), and a plurality of shaped tube sleeves (3), characterized in that, The first support (1) is snapped with the second support (2). The first support (1) is provided with a plurality of fixed tube sleeves (3) spaced apart along its length. The second support (2) is provided with a plurality of support rods (4) in a ring on the right side. The first support (1) and the second support (2) are both hollow pipe structures and their internal cavities are interconnected. The ends of the plurality of support rods (4) are provided with limit balls (5). The inner sides of the plurality of support rods (4) are provided with opening grooves (6). The opening grooves (6) are filled with biodegradable medical adhesive. The plurality of support rods (4) are attached to the outside of the second support (2) by the biodegradable medical adhesive.

2. The appendix stent auxiliary widening structure according to claim 1, characterized in that, The shaping sleeve (3) uses nickel-titanium alloy spiral wire as the inner stable structure and is covered with a medical silicone sheath on the outer layer. The shaping sleeves (3) can be flexibly adjusted according to the usage requirements to bend and shape the first support (1).

3. The appendix stent auxiliary widening structure according to claim 1, characterized in that, The first bracket (1) has a plurality of first through holes (7) spaced apart along its length.

4. The appendix stent auxiliary widening structure according to claim 1, characterized in that, The second bracket (2) has a plurality of second through holes (8) spaced apart along its length.

5. The appendix stent auxiliary widening structure according to claim 3, characterized in that, The diameter of the plurality of first through holes (7) gradually decreases from the outside to the inside.

6. The appendix stent auxiliary widening structure according to claim 4, characterized in that, The diameter of the plurality of second through holes (8) gradually decreases from the outside to the inside.

7. The appendix stent auxiliary widening structure according to claim 1, characterized in that, The first bracket (1) has a plurality of first limiting pieces (9) arranged in a ring on the rear side, and the first bracket (1) has a plurality of second limiting pieces (10) arranged in a ring on the front side.

8. The appendix stent auxiliary widening structure according to claim 7, characterized in that, The orientation of the plurality of first limiting pieces (9) is opposite to the orientation of the plurality of second limiting pieces (10).

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