Dense mesh stent with coating structure

Abstract

The utility model discloses a dense net bracket with a coating structure, relates to the technical field of dense net brackets, and aims to solve the problems that the conventional dense net bracket is easy to wear due to lack of an effective storage mechanism in the use process, the development effect of the dense net bracket is poor, and the development cost is high. The dense mesh stent comprises a mesh tube main body, silica gel weaving wires are arranged in the mesh tube main body, the mesh tube main body is formed by weaving the silica gel weaving wires, and a developing coating is arranged on the outer wall of each silica gel weaving wire; the storage sleeve is arranged outside the silica gel woven wire in a sleeving mode, sealing end covers are installed at the two ends of the storage sleeve, a leaning seat disc is arranged in the storage sleeve, and a rope pulling block is arranged on one side of the leaning seat disc; the edge covering end heads are arranged at the two ends of the silica gel weaving wire, and the two edge covering end heads and the silica gel weaving wire are of an integrated structure.

Description

Technical Field

[0001] The utility model relates to the technical field of dense mesh brackets, in particular to a dense mesh bracket with a coating structure. Background Art

[0002] Dense mesh stents are mainly used to treat complex and refractory vascular diseases, such as aneurysms. This stent has a unique mesh structure that can effectively isolate the blood in the blood vessels, reduce the risk of aneurysm rupture and bleeding, and may even cure aneurysms. The mesh of the dense mesh stent is very small, which can reduce the impact of blood flow on aneurysms, promote thrombosis, and thus help close aneurysms.

[0003] For example, the announcement number is: CN216797946U (named as a dense mesh stent), including: a stent body, the stent body is arranged in a mesh tube shape, and has diamond-shaped meshes, a dense mesh area suitable for corresponding to the aneurysm cavity is arranged on the stent body, and sparse mesh areas are symmetrically located on both sides of the dense mesh area and adjacent to the dense mesh area, the mesh density of the dense mesh area is greater than the mesh density of any of the sparse mesh areas; the mesh area located in the dense mesh area is smaller than the mesh area of ​​any of the sparse mesh areas, in the above-mentioned dense mesh stent, the stent body has a smooth surface, in the above-mentioned dense mesh stent, the surface of the stent body is coated with an anti-thrombotic coating to form a smooth surface, in the above-mentioned dense mesh stent The coating is a phosphorylcholine coating. In the above-mentioned dense mesh stent, the stent body is expandable. After being expanded into place, its outer wall surface is suitable for 360° fitting with the blood vessel wall. In the above-mentioned dense mesh stent, the stent body includes a plurality of ribs arranged in sequence from the distal end to the proximal end. After being expanded into place, the central axis of each rib extends along the blood flow direction of the blood vessel. Any rib is distributed in a sinusoidal curve. The amplitude of the rib in the dense mesh area is smaller than the amplitude of the rib in the sparse mesh area. Among any three adjacent ribs, the crest of the rib in the middle is connected to the trough of the rib on one side, and the trough of the rib in the middle is connected to the crest of the rib on the other side.

[0004] The above-mentioned dense mesh stent lacks an effective storage mechanism during use, which makes the dense mesh stent prone to wear, and the dense mesh stent has a poor development effect, resulting in poor accuracy when the dense mesh stent is inserted into the blood vessel. For this reason, we provide a dense mesh stent with a coating structure. Utility Model Content

[0005] The purpose of the utility model is to provide a dense mesh stent with a coating structure to solve the problem that the existing dense mesh stent proposed in the above background technology lacks an effective storage mechanism during use, which makes the dense mesh stent easy to wear, and the dense mesh stent has a poor development effect, resulting in poor accuracy when inserted into a blood vessel.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dense mesh stent with a coating structure, comprising a mesh tube body, the interior of which is provided with silicone braided wires, the mesh tube body is woven from the silicone braided wires, and a developing coating is provided on the outer wall of the silicone braided wires;

[0007] Also includes:

[0008] A storage sleeve is sleeved on the outside of the silicone braided wire, and both ends of the storage sleeve are equipped with sealing end covers, a seat plate is arranged inside the storage sleeve, and a traction rope block is arranged on one side of the seat plate;

[0009] The edge ends are arranged at the two end positions of the silicone braided wire. The two edge ends are an integral structure with the silicone braided wire, and two connecting ropes are arranged at the connecting position between one edge end and the pull rope block.

[0010] Preferably, an embedded groove is provided inside the seat plate, a magnet block is fixedly provided inside the embedded groove by adhesive, and the pull rope block is adsorbed and connected to the seat plate through the magnet block.

[0011] Preferably, a threaded plug is provided on the inner wall of the sealing end cover, the threaded plug and the sealing end cover are an integrated structure, and the sealing end cover is sealingly connected to the receiving sleeve via the threaded plug.

[0012] Preferably, a connection port is provided at the connection position between the threaded plug and the receiving sleeve, the connection port and the receiving sleeve are an integrated structure, and the threaded plug is correspondingly connected to the threaded structure on the inner wall of the connection port.

[0013] Preferably, two connecting rods are provided on the outer wall of the seat plate, and two ends of the two connecting rods are respectively welded to the outer wall of the seat plate and the inner wall of the storage sleeve.

[0014] Preferably, both ends of the two connecting ropes are fixedly connected to the edge end and the rope block respectively by nail-free glue.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The external sleeve of the mesh tube body of the utility model is used to assist the dense mesh stent in guiding and moving to be inserted into the interior of the blood vessel, and also plays the role of packaging and storing the dense mesh stent. When the dense mesh stent is inserted into the blood vessel, the two sealing end covers at both ends are first removed, and then the traction rope block is separated and removed from the seat plate. After the dense mesh stent in the contracted state is pushed out from the receiving sleeve, it enters the human blood vessel. The contracted state of the silicone loses the inhibition of the receiving sleeve and then expands to fit the inner wall of the human blood vessel, thereby achieving the purpose of preventing blood spillage as much as possible and reducing the degree of bleeding during tumor resection.

[0017] 2. The outer layer of the dense mesh stent is coated with a developing solution to form a developing coating, which facilitates endoscopic observation of the situation of the dense mesh stent inserted into the blood vessel during surgery and improves the accuracy of the use of the dense mesh stent. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the dense mesh bracket with a coating structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the network management body and the pull rope block of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the storage sleeve of the utility model;

[0021] Figure 4 This is a schematic diagram of the main structure of the network management system of the utility model;

[0022] In the figure: 1. Network pipe body; 2. Silicone braided wire; 3. Edge-wrapped end; 4. Storage sleeve; 5. Threading port; 6. Rope block; 7. Connecting rope; 8. Sealing end cap; 9. Threaded plug; 10. Sealing plate; 11. Connecting rod; 12. Embedded groove; 13. Magnet block; 14. Developing coating. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-4 The utility model provides an embodiment: a dense mesh stent with a coating structure, comprising a mesh tube body 1, a silicone braided wire 2 is arranged inside the mesh tube body 1, the mesh tube body 1 is woven by the silicone braided wire 2, and a developing coating 14 is arranged on the outer wall of the silicone braided wire 2;

[0025] Also includes:

[0026] A storage sleeve 4 is sleeved on the outside of the silicone braided wire 2, and sealing end covers 8 are installed at both ends of the storage sleeve 4. A support plate 10 is arranged inside the storage sleeve 4, and a pull rope block 6 is arranged on one side of the support plate 10;

[0027] The edge end heads 3 are arranged at both ends of the silicone braided wire 2. The two edge end heads 3 are integrated with the silicone braided wire 2, and two connecting ropes 7 are arranged at the connecting position between one edge end head 3 and the pull rope block 6.

[0028] When in use, the outer part of the mesh tube body is covered with a receiving sleeve to assist the dense mesh stent in guiding and inserting into the interior of the blood vessel, and also serves the function of packaging and storing the dense mesh stent. When the dense mesh stent is inserted into the blood vessel, the two sealing end covers at both ends are first removed, and then the pull rope block is separated and removed from the seat plate. After the dense mesh stent in the contracted state is pushed out from the receiving sleeve, it enters the human blood vessel. The contracted state of the silicone loses the inhibition of the receiving sleeve and then expands, fitting the inner wall of the human blood vessel, thereby achieving the purpose of preventing blood overflow as much as possible.

[0029] See also Figure 3 An embedded groove 12 is provided inside the seat plate 10, and a magnet block 13 is fixedly provided inside the embedded groove 12 by adhesive. The pull rope block 6 is adsorbed and connected to the seat plate 10 through the magnet block 13, and the embedded groove 12 provided inside the seat plate 10 plays the role of supporting the magnet block 13.

[0030] See also Figure 3 A threaded plug 9 is provided on the inner wall of the sealing end cover 8. The threaded plug 9 and the sealing end cover 8 are an integrated structure. The sealing end cover 8 is sealed and connected to the receiving sleeve 4 through the threaded plug 9. The threaded plug 9 provided on the inner wall of the sealing end cover 8 plays the role of sealing the two ends of the receiving sleeve 4.

[0031] See also Figure 1 A connection port 5 is provided at the connection position between the threaded plug 9 and the storage sleeve 4. The connection port 5 and the storage sleeve 4 are an integrated structure. The threaded plug 9 is correspondingly connected to the threaded structure on the inner wall of the connection port 5. The connection port 5 provided at the connection position between the threaded plug 9 and the storage sleeve 4 serves to facilitate the passage of the dense mesh bracket and the corresponding connection of the threaded plug 9.

[0032] See also Figure 3 Two connecting rods 11 are arranged on the outer wall of the seat plate 10, and the two ends of the two connecting rods 11 are respectively welded to the outer wall of the seat plate 10 and the inner wall of the storage sleeve 4. The two connecting rods 11 arranged on the outer wall of the seat plate 10 play the role of erecting the seat plate 10.

[0033] See also Figure 2 The two ends of the two connecting ropes 7 are fixedly connected to the edge end 3 and the pull rope block 6 respectively through nail-free glue.

[0034] Working principle: When in use, the dense mesh stent consists of a mesh tube body 1 and an edge end 3. The mesh tube body 1 is woven from silicone braided wire 2. The outer portion of the mesh tube body 1 is sheathed with a receiving sleeve 4 to assist the dense mesh stent in guiding the movement of being inserted into the interior of the blood vessel. It also serves to package and store the dense mesh stent. When the dense mesh stent is inserted into the blood vessel, the two sealing end covers 8 at both ends are first removed, and then the pull rope block 6 is separated and removed from the seat plate 10. After the dense mesh stent in the contracted state is pushed out from the receiving sleeve 4, it enters the human body's blood vessels. The contracted state of the silicone loses the inhibition of the receiving sleeve 4 and then expands, fitting the inner wall of the human body's blood vessels, thereby achieving the purpose of preventing blood spillage as much as possible and reducing the degree of bleeding during tumor resection. The outer layer of the dense mesh stent is coated with a developing solution to form a developing coating, thereby facilitating endoscopic observation of the situation of the dense mesh stent inserted into the blood vessel during surgery, improving the accuracy of the use of the dense mesh stent, and completing the use of the dense mesh stent with a coating structure.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A dense mesh stent with a coating structure, comprising a mesh tube body (1), wherein silicone braided wires (2) are arranged inside the mesh tube body (1), the mesh tube body (1) is woven by the silicone braided wires (2), and a developing coating (14) is arranged on the outer wall of the silicone braided wires (2); Features: Also includes: A storage sleeve (4) is sleeved and arranged outside the silicone braided wire (2), and sealing end covers (8) are installed at both ends of the storage sleeve (4). A seat plate (10) is arranged inside the storage sleeve (4), and a pull rope block (6) is arranged on one side of the seat plate (10); The edge end heads (3) are arranged at both ends of the silicone braided wire (2); the two edge end heads (3) are an integral structure with the silicone braided wire (2); and two connection ropes (7) are arranged at the connection position between one edge end head (3) and the pull rope block (6).

2. The dense mesh stent with a coating structure according to claim 1, characterized in that: The seat plate (10) is provided with an embedded groove (12) inside, a magnet block (13) is fixedly provided inside the embedded groove (12) by adhesive, and the pull rope block (6) is adsorbed and connected to the seat plate (10) via the magnet block (13).

3. The dense mesh stent with a coating structure according to claim 1, characterized in that: A threaded plug (9) is provided on the inner wall of the sealing end cover (8); the threaded plug (9) and the sealing end cover (8) are an integrated structure; the sealing end cover (8) is sealedly connected to the receiving sleeve (4) via the threaded plug (9).

4. The dense mesh stent with a coating structure according to claim 3, characterized in that: A connection port (5) is provided at the connection position between the threaded plug (9) and the receiving sleeve (4); the connection port (5) and the receiving sleeve (4) are an integrated structure; the threaded plug (9) is correspondingly connected to the threaded structure on the inner wall of the connection port (5).

5. The dense mesh stent with a coating structure according to claim 1, characterized in that: Two connecting rods (11) are arranged on the outer wall of the seat plate (10), and the two ends of the two connecting rods (11) are respectively welded to the outer wall of the seat plate (10) and the inner wall of the storage sleeve (4).

6. The dense mesh stent with a coating structure according to claim 1, characterized in that: The two ends of the two connecting ropes (7) are respectively fixedly connected to the edge wrapping end (3) and the rope pulling block (6) by means of nail-free glue.

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