CN214342813U

CN214342813U - Intracranial covered stent

Info

Publication number: CN214342813U
Application number: CN202023051421.7U
Authority: CN
Inventors: 王瑞罡; 关绍康; 贺迎坤; 王子亮; 张亚博
Original assignee: Zhengzhou Meigang High Tech Biotechnology Co ltd
Current assignee: Zhengzhou Meigang High Tech Biotechnology Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-10-08
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses an intracranial tectorial membrane support relates to medical instrument technical field, specifically is an intracranial tectorial membrane support, which comprises a supporting rack and is characterized by further comprising a supporting frame, the support frame includes the connecting rod, shrink pole and extension rod, and one side of shrink pole articulates there is the bull stick, and the one end of bull stick is rotated and is connected with the backup pad, one side fixedly connected with backup pad piece of backup pad, and the shape of backup pad piece is semi-circular, one side fixedly connected with expanding spring of shrink pole, the solid fixed ring of expanding spring's one end fixedly connected with, gu fixed ring includes the fixed block, clitellum and removal area, the through-hole has been seted up to one side of fixed block, the inside fixedly connected with mounting panel of through-hole. This intracranial tectorial membrane support through the setting of backup pad, makes this intracranial tectorial membrane support possess the effect of support holder, sets up through the cooperation of connecting rod, shrink pole, extension rod, bull stick, backup pad and lip block, can support the vascular inner wall at the in-process that uses to firm fixed bolster's purpose has been reached.

Description

Intracranial covered stent

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an intracranial tectorial membrane stent.

Background

The covered stent is an artificial in-vivo graft in which the inner surface or the outer surface of a metal bare stent is partially or completely covered with a membranous material, and the covered stent not only retains the supporting function of a common stent, but also can effectively improve the abnormal hemodynamics of a diseased blood vessel, thereby being widely applied to the treatment of peripheral vascular malformation diseases, acute and chronic vascular injuries and other vascular diseases. Recently, more scholars apply the medicine to the treatment of percutaneous angioplasty, transjugular intrahepatic portosystemic shunt, dialysis duct pseudoaneurysm and congenital aortic stenosis combined arterial vessel patent closure, and obtain good curative effect, and the current film coating research has been deeply conducted to the molecular biology level, and the medicine has thinner thickness, larger ductility and higher intermiscibility. With the progress of basic research, the theory of endothelialization of the covered stent, such as changing the structure of the stent to accelerate the crawling of endothelial cells at the two ends of the stent, culturing and implanting cells in the epidermis of the in vitro stent, capturing endothelial precursor cells in the blood circulation induced by the stent by running and capturing the stem cells and the twigs, and the like, is sequentially proposed and developed, so that the problem of restenosis after stent implantation is thoroughly solved, and the bright future is seen.

The original stent is usually circular in cross section, and after the original stent is implanted to a diseased position for a long time, the original stent may be displaced due to external force, which is also one of the reasons for treatment failure and long-term complications, so that the treatment effect of the stent covering film is deteriorated, and the rehabilitation effect of the diseased position is influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides an intracranial tectorial membrane support, to the not enough of prior art, the problem of proposing in the above-mentioned background art has been solved.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides an intracranial tectorial membrane support, includes the support frame, the support frame includes connecting rod, shrink pole and extension rod, one side of shrink pole articulates there is the bull stick, and the one end of bull stick is rotated and is connected with the backup pad, one side fixedly connected with supporting pad piece of backup pad, and supporting pad piece's shape is semi-circular, one side fixedly connected with expanding spring of shrink pole, the solid fixed ring of one end fixedly connected with of expanding spring, solid fixed ring include fixed block, clitellum and removal area, the through-hole has been seted up to one side of fixed block, the inside fixedly connected with mounting panel of through-hole, one side fixedly connected with limiting plate of mounting panel, the first cushion of one side fixedly connected with of clitellum, one side fixedly connected with second cushion of fixed block.

Optionally, the number of the support frames is a plurality, and the support frames are arranged in an annular array form, and the support frames are made of elastic materials.

Optionally, one end fixedly connected with shrink rod of connecting rod, the position of shrink rod is parallel arrangement, the one end fixedly connected with extension rod of connecting rod, the position of extension rod is parallel arrangement.

Optionally, the number of the fixing rings is two, the two ends of the supporting frame are symmetrically arranged, the telescopic springs are evenly arranged on one side of the fixing rings, and the fixing rings are circular.

Optionally, the material of limiting plate is the elasticity material, the inside of fixed block is pegged graft and is had the removal area, and the tooth's socket has been seted up to one side of removing the area, one side of tooth's socket and one side butt of limiting plate, one side fixedly connected with slider in removal area, one side of fixed block and the one end fixed connection who clitells, the one end in removal area and the one end fixed connection who clitells, the spout with slider looks adaptation is seted up to one side of clitells.

Optionally, the first cushion block is semicircular, the second cushion block is semicircular, and the height of the second cushion block is lower than that of the first cushion block.

(III) advantageous effects

The utility model provides an intracranial tectorial membrane support possesses following beneficial effect:

1. this intracranial tectorial membrane support through the setting of backup pad, makes this intracranial tectorial membrane support possess the effect of support holder, sets up through the cooperation of connecting rod, shrink pole, extension rod, bull stick, backup pad and lip block, can support the vascular inner wall at the in-process that uses to firm fixed bolster's purpose has been reached.

2. This intracranial tectorial membrane support through solid fixed ring's setting, makes this intracranial tectorial membrane support possess the effect that prevents to take place the displacement, sets up through the cooperation of fixed block, clitellum, removal area, mounting panel, limiting plate, slider, first cushion and second cushion, can remain solid fixed ring's size throughout at the in-process that uses to avoid the support to warp and take place the displacement.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic sectional view of a side view of the support frame of the present invention;

FIG. 3 is a schematic sectional view of the front view of the fixing ring of the present invention;

fig. 4 is an enlarged schematic structural view of a portion a in fig. 3 according to the present invention.

In the figure: 1. a connecting rod; 2. a retracting lever; 3. an extension rod; 4. a rotating rod; 5. a support plate; 6. supporting the cushion block; 7. a tension spring; 8. a fixed block; 9. a girdle; 10. a moving belt; 11. mounting a plate; 12. a limiting plate; 13. a slider; 14. a first cushion block; 15. and a second cushion block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: an intracranial tectorial membrane stent comprises a support frame, wherein the number of the support frame is a plurality of the support frames which are arranged in a ring array form, the material of the support frame is elastic, the support frame comprises a connecting rod 1, a contraction rod 2 and an extension rod 3, one end of the connecting rod 1 is fixedly connected with the contraction rod 2, the position of the contraction rod 2 is parallel arrangement, one end of the connecting rod 1 is fixedly connected with the extension rod 3, the position of the extension rod 3 is parallel arrangement, one side of the contraction rod 2 is hinged with a rotating rod 4, one end of the rotating rod 4 is rotatably connected with a support plate 5, one side of the support plate 5 is fixedly connected with a support cushion block 6, the shape of the support cushion block 6 is semicircular, the intracranial tectorial membrane stent has the effect of the support frame through the arrangement of the support plate 5, the connecting rod 1, the contraction rod 2, the extension rod 3, the rotating rod 4, the support plate 5 and the support cushion block 6 are matched to be arranged, the inner wall of a blood vessel can be supported in the use process, thereby achieving the purpose of firmly fixing the bracket, one side of the contraction rod 2 is fixedly connected with a telescopic spring 7, one end of the telescopic spring 7 is fixedly connected with a fixing ring, the number of the fixing rings is two, the fixing rings are symmetrically arranged at the two ends of the support frame, the telescopic spring 7 is uniformly arranged at one side of the fixing ring, the shape of the fixing ring is circular, the fixing ring comprises a fixing block 8, a girdle 9 and a moving belt 10, one side of the fixing block 8 is provided with a through hole, the inside of the through hole is fixedly connected with a mounting plate 11, one side of the mounting plate 11 is fixedly connected with a limiting plate 12, the material of the limiting plate 12 is elastic material, the inside of the fixing block 8 is spliced with the moving belt 10, one side of the moving belt 10 is provided with a tooth socket, one side of the tooth socket is abutted against one side of the limiting plate 12, one side of the moving belt 10 is fixedly connected with a slide block 13, one side of the fixing block 8 is fixedly connected with one end of the girdle 9, remove the one end of taking 10 and the one end fixed connection of clitellum 9, the spout with slider 13 looks adaptation is seted up to one side of clitellum 9, the first cushion 14 of one side fixedly connected with of clitellum 9, the shape of first cushion 14 is semi-circular, one side fixedly connected with second cushion 15 of fixed block 8, the shape of second cushion 15 is semi-circular, and the height that highly is less than first cushion 14 of second cushion 15, setting through solid fixed ring, make this intracranial tectorial membrane support possess the effect that prevents to take place the displacement, through fixed block 8, clitellum 9, remove area 10, mounting panel 11, limiting plate 12, slider 13, the cooperation setting of first cushion 14 and second cushion 15, can keep solid fixed ring's size throughout at the in-process of using, thereby avoid the support to warp and take place the displacement.

During the use, outwards support the support frame, the support frame expansion drives extension rod 3 and outwards extends, drive 2 internal contraction of shrink pole, shrink pole 2 drives bull stick 4 and rotates, bull stick 4 rotates around its one end, bull stick 4 drives backup pad 5 and upwards rises, backup pad 5 drives 6 butt blood vessel inner walls of lip block, gu the fixed ring expansion, removal area 10 slides in the inside of fixed block 8, limiting plate 12 joint is to in the tooth's socket of removal area 10 one side, the restriction removes area 10 and contracts back, thereby make clitellum 9 keep fixed, when taking place the external force extrusion, clitellum 9 keeps fixed, the support frame drives expanding spring 7 and takes place deformation, expanding spring 7 cushions the displacement that external force caused to the support frame, make the support frame firmly fix in pathological change department.

The utility model discloses a theory of operation and beneficial effect: this intracranial tectorial membrane support, setting through backup pad 5, make this intracranial tectorial membrane support possess the effect of support holder, through connecting rod 1, shrink pole 2, extension rod 3, the bull stick 4, backup pad 5 and supporting pad 6's cooperation sets up, can support the blood vessel inner wall at the in-process that uses, thereby the purpose of firm fixed bolster has been reached, this intracranial tectorial membrane support, setting through solid fixed ring, make this intracranial tectorial membrane support possess the effect that prevents to take place the displacement, through fixed block 8, clitellum 9, removal area 10, mounting panel 11, limiting plate 12, slider 13, the cooperation setting of first cushion 14 and second cushion 15, can keep solid fixed ring's size throughout at the in-process of using, thereby avoid the support to warp and take place the displacement.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an intracranial tectorial membrane support, includes the support frame, its characterized in that: the support frame comprises a connecting rod (1), a contraction rod (2) and an extension rod (3), one side of the contraction rod (2) is hinged with a rotating rod (4), one end of the rotating rod (4) is rotatably connected with a supporting plate (5), one side of the supporting plate (5) is fixedly connected with a supporting cushion block (6), the supporting cushion block (6) is semicircular in shape, one side of the contraction rod (2) is fixedly connected with an expansion spring (7), one end of the expansion spring (7) is fixedly connected with a fixing ring, the fixing ring comprises a fixing block (8), an annular belt (9) and a movable belt (10), a through hole is arranged at one side of the fixed block (8), a mounting plate (11) is fixedly connected inside the through hole, a limiting plate (12) is fixedly connected at one side of the mounting plate (11), one side of the ring belt (9) is fixedly connected with a first cushion block (14), and one side of the fixed block (8) is fixedly connected with a second cushion block (15).

2. The intracranial tectorial stent as in claim 1, wherein: the quantity of support frame has a plurality of, and arranges in the form of annular array, the material of support frame is the elasticity material.

3. The intracranial tectorial stent as in claim 1, wherein: the one end fixedly connected with shrink pole (2) of connecting rod (1), the position of shrink pole (2) are parallel arrangement, the one end fixedly connected with extension rod (3) of connecting rod (1), the position of extension rod (3) are parallel arrangement.

4. The intracranial tectorial stent as in claim 1, wherein: the number of the fixing rings is two, the two ends of the supporting frame are symmetrically arranged, the telescopic springs (7) are uniformly arranged on one side of the fixing rings, and the fixing rings are circular.

5. The intracranial tectorial stent as in claim 1, wherein: the material of limiting plate (12) is the elasticity material, the inside of fixed block (8) is pegged graft and is had removal area (10), and the tooth's socket has been seted up to one side of removing area (10), one side of tooth's socket and one side butt of limiting plate (12), one side fixedly connected with slider (13) of removing area (10), one side of fixed block (8) and the one end fixed connection of clitellum (9), the one end of removing area (10) and the one end fixed connection of clitellum (9), the spout with slider (13) looks adaptation is seted up to one side of clitellum (9).

6. The intracranial tectorial stent as in claim 1, wherein: the first cushion block (14) is semicircular, the second cushion block (15) is semicircular, and the height of the second cushion block (15) is lower than that of the first cushion block (14).