CN219022912U

CN219022912U - Intracranial artery conformality multi-column saccule dilating stent

Info

Publication number: CN219022912U
Application number: CN202221737149.4U
Authority: CN
Inventors: 申猛; 陈清亮
Original assignee: Henan Third People's Hosptial
Current assignee: Henan Third People's Hosptial
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2023-05-16
Anticipated expiration: 2032-07-07

Abstract

The utility model discloses an intracranial artery conformal multi-column balloon dilating stent, which relates to the technical field of medical appliances and aims to solve the problems that the existing balloon dilating stent is only provided with a single-column balloon dilating stent, is suitable for narrow blood vessels with relatively straight blood vessels, is easy to cause blood vessel rupture or blood vessel displacement to excessively pull attached arterioles to cause blood vessel rupture and hemorrhage if the arterial blood vessels excessively meander, is put into an automatic expanding stent after being expanded for a plurality of times, has poor blood flow restoring effect and high short-term reocclusion rate.

Description

Intracranial artery conformality multi-column saccule dilating stent

Technical Field

The utility model relates to the technical field of medical appliances, in particular to an intracranial artery conformal multi-column saccule dilating stent.

Background

Cerebral arterial stenosis is a major factor in inducing severe ischemic stroke and causes life danger and serious disability risk, and stent placement after balloon dilation is a current conventional clinical treatment means for contacting cerebral arterial stenosis.

However, the existing balloon expandable stent only has a single-column balloon expandable stent, is suitable for narrow blood vessels with relatively flat blood vessels, if arterial blood vessels excessively bend, the arterial blood vessels are easy to rupture or the blood vessels are excessively shifted to pull auxiliary arterioles to cause the rupture and bleeding of the blood vessels, and after the short-column balloon is adopted for multiple expansion, the automatic expandable stent is placed, so that the blood flow recovery effect is poor, and the short-term reocclusion rate is high. Accordingly, an intracranial arterial conformable multi-cylindrical balloon expandable stent is proposed to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide an intracranial artery conformal multi-column balloon expandable stent, which aims to solve the problems that in the prior art, the existing balloon expandable stent is only provided with a single-column balloon expandable stent, is suitable for narrow blood vessels with relatively straight blood vessels, if arterial blood vessels are excessively tortuous, the blood vessels are easily broken or the blood vessels are excessively shifted to pull attached arterioles to cause broken blood vessels to bleed, and after a plurality of times of expansion of a short column balloon, the stent is placed into an automatic expansion stent, so that the blood flow recovery effect is poor, and the short-term reocclusion rate is high.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an intracranial artery conformality multi-column sacculus expansion support, includes main pipe and multisection branch pipe, one side that the main pipe kept away from the branch pipe is provided with guide wire mouth and air duct mouth respectively, guide wire and air duct have been inserted respectively to guide wire mouth and air duct mouth's inside, and guide wire and air duct run through respectively and are fixed in the inside of main pipe and branch pipe, the air duct has the sacculus through a plurality of minute trachea intercommunication respectively, the sacculus sets up on the outer wall of branch pipe, be provided with the support on the outer wall of sacculus.

Preferably, the multiple sections of the branch pipes are distributed at equal intervals.

Preferably, the distance between adjacent sub-pipes is 1-2mm.

Preferably, two metal marks are arranged on the outer wall of the guide wire, and the two metal marks are respectively arranged on the front side of the branch pipe positioned at the head end and the rear side of the branch pipe positioned at the tail end.

Preferably, the guide wire is made of nylon or polyurethane and other deformable materials, and the bracket is made of metal, alloy or bioengineering materials compatible with human bodies.

Compared with the prior art, the utility model has the beneficial effects that: this intracranial artery conformality multi-column sacculus expansion support is through the setting of seal wire, air duct, minute trachea and main catheter to and minute catheter, sacculus and support are multisection distribution for after the support was strutted to arterial vessel, arterial vessel can strut on original shape's basis, has kept the complete advantage of sacculus expansion support inflation, has avoided the straight blood vessel of stretching and has caused the fracture of blood vessel or cracked risk when the sacculus is full, thereby when guaranteeing to resume blood flow effect, reduced short-term reocclusion rate, promoted security and the suitability of use.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

fig. 3 is a schematic view of a partial enlarged structure of fig. 2.

In the figure: 1. main catheter, 2, guide wire, 3, branch catheter, 4, air duct, 5, air duct, 6, saccule, 7, bracket, 8, guide wire mouth, 9, air duct mouth, 10, metal mark.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The components of the utility model are all common standard components or components known to those skilled in the art, and the structures and principles thereof are all known to those skilled in the art through technical manuals or through routine experimental methods.

Referring to fig. 1 to 3, the present utility model provides a technical solution:

the utility model provides an intracranial artery conformality multi-column sacculus expansion support, including main catheter 1 and multisection branch pipe 3, one side that main catheter 1 kept away from branch pipe 3 is provided with guide wire mouth 8 and air duct mouth 9 respectively, guide wire 2 and air duct 4 have been inserted respectively to the inside of guide wire mouth 8 and air duct mouth 9, and guide wire 2 and air duct 4 run through respectively and are fixed in main catheter 1 and the inside of branch pipe 3, air duct 4 has sacculus 6 through a plurality of minute trachea 5 intercommunication respectively, sacculus 6 sets up on the outer wall of branch pipe 3, be provided with support 7 on the outer wall of sacculus 6.

The pipe diameters of the main pipe 1 and the branch pipe 3 are consistent, and the length of the branch pipe 3 can be set according to specific situations.

Specifically, during the use, insert the intracranial artery in proper order with multisection branch pipe 3 based on seal wire 2, but the branch pipe 3 through multisection distribution is conformably placed in comparatively crooked artery this moment, after reaching suitable position, accessible air duct mouth 9 is air guide in the air duct 4, and make gaseous accessible air duct 5 to in the sacculus 6 on each branch pipe 3 outer wall, make sacculus 6 inflation and drive support 7 expansion in order to realize opening to arterial vessel inner wall, at this moment, through branch pipe 3, sacculus 5 and support 7 all are multisection distribution, can make arterial vessel can open on the basis of original shape after opening to arterial vessel, the advantage that the expansion of sacculus expansion support is complete has been kept, the risk that the straight blood vessel caused the vascular fracture or fracture when having avoided the sacculus to guarantee to resume blood flow effect, when reducing the short-term reocclusion rate, safety and the suitability of using have been promoted.

As a preferred embodiment, the plurality of sub-ducts 3 are equally distributed.

Specifically, the distance between the adjacent branch ducts 3 is 1-2mm, and the conformality of the curved artery when the curved artery is expanded can be improved through the equidistant distribution of the branch ducts 3.

As a preferred embodiment, two metal markers 10 are provided on the outer wall of the guide wire 2, the two metal markers 10 being provided on the front side of the branch pipe 3 at the head end and on the rear side of the branch pipe 3 at the tail end, respectively.

Specifically, the metal marker 10 is arranged so that the metal marker can be developed under X-ray, so that the length and the position of the stent for expanding the blood vessel can be rapidly determined.

As a preferred embodiment, the guide wire 2 is made of a deformable material such as nylon or polyurethane, and the stent 7 is made of a metal, alloy or bioengineered material compatible with the human body.

Specifically, through the material setting of guide wire 2, can make multisection branch pipe 3 when the complete intra-arterial, can embed along with its shape, and through the material setting of support 7 for the adaptation of artery inner wall to support 7 is more stable.

The components in the present case are sequentially connected by a person skilled in the art, and specific connection and operation sequence should be referred to the following working principle, and the detailed connection means thereof are known in the art, and the following working principle and process are mainly described.

The working process and the working principle of the utility model are as follows: when the balloon catheter is used, the multiple sections of the catheter 3 are sequentially inserted into the intracranial artery based on the guide wire 2, at the moment, the catheter 3 distributed in multiple sections can be conformably arranged in the relatively curved artery, after the balloon catheter reaches a proper position, the balloon catheter 4 is guided by the air guide pipe port 9, and the air can be guided into the balloon 6 on the outer wall of each catheter 3 through the air guide pipe 5, so that the balloon 6 is expanded and drives the bracket 7 to expand so as to realize the expansion of the inner wall of the arterial vessel, at the moment, the catheter 3, the balloon 5 and the bracket 7 are distributed in multiple sections, after the arterial vessel is expanded, the arterial vessel can be expanded on the basis of the original shape, the advantage of complete expansion of the balloon expandable bracket is reserved, the risk of rupture or fracture of the vessel caused by stretching the straight vessel when the balloon is avoided, and the safety and the applicability of the use are improved while the use effect is ensured.

Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An intracranial artery conformable multi-column balloon expandable stent, characterized in that: including main pipe (1) and multisection branch pipe (3), one side that branch pipe (3) were kept away from to main pipe (1) is provided with seal wire mouth (8) and air duct mouth (9) respectively, seal wire (2) and air duct (4) have been inserted respectively to the inside of seal wire mouth (8) and air duct mouth (9), and seal wire (2) and air duct (4) run through the inside of being fixed in main pipe (1) and branch pipe (3) respectively, air duct (4) are connected with sacculus (6) through a plurality of minute pipes (5) respectively, sacculus (6) set up on the outer wall of branch pipe (3), be provided with support (7) on the outer wall of sacculus (6).

2. An intracranial arterial conformable multi-cylindrical balloon expandable stent according to claim 1, wherein: the multiple sections of the branch pipes (3) are distributed at equal intervals.

3. An intracranial arterial conformable multi-cylindrical balloon expandable stent according to claim 2, wherein: the distance between the adjacent branch pipes (3) is 1-2mm.

4. An intracranial arterial conformable multi-cylindrical balloon expandable stent according to claim 1, wherein: two metal marks (10) are arranged on the outer wall of the guide wire (2), and the two metal marks (10) are respectively arranged on the front side of the branch pipe (3) positioned at the head end and the rear side of the branch pipe (3) positioned at the tail end.

5. An intracranial arterial conformable multi-cylindrical balloon expandable stent according to claim 1, wherein: the guide wire (2) is made of nylon or polyurethane, and the bracket (7) is made of metal, alloy or bioengineering material compatible with human body.