CN211535011U

CN211535011U - Blood vessel support

Info

Publication number: CN211535011U
Application number: CN202020087458.6U
Authority: CN
Inventors: 陈明
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-09-22
Anticipated expiration: 2030-01-15

Abstract

The utility model provides a blood vessel bracket, which comprises a catheter and a bracket component arranged on the catheter; the stent component comprises a stent body for expanding blood vessels and a barrier film for plugging the damage of the blood vessels, the stent body consists of a plurality of stents, and connecting pieces are arranged between adjacent stents; the barrier film comprises a first operating pipe arranged on the guide pipe in a sliding mode and a film body connected with the first operating pipe, the first operating pipe is pushed and pulled to drive the film body to slide on the guide pipe, and the film body is provided with a connecting structure. The problem of current vascular support's length unadjustable is solved. The utility model discloses a vascular support's support body comprises a plurality of support, when utilizing the support to support the blood vessel, the length of the blood vessel that supports as required selects the support quantity that is used for supporting blood vessel, and then avoids the support body to normal vascular influence, reduces the rejection reaction of organism, reduces patient's misery.

Description

Blood vessel support

Technical Field

The utility model belongs to the technical field of vascular support, concretely relates to vascular support.

Background

The length of the existing blood vessel support can not be adjusted, when the blood vessel to be supported is short, the support can be contacted with the normal blood vessel, so that the rejection reaction of an organism is increased, and meanwhile, the normal blood vessel is diseased.

In order to solve the problem that the length of the existing blood vessel support is not adjustable, the blood vessel support is designed, the support body of the blood vessel support consists of a plurality of supports, when the supports are used for supporting blood vessels, the number of the supports used for supporting the blood vessels is selected according to the length of the blood vessels supported by needs, so that the influence of the support body on normal blood vessels is avoided, the rejection reaction of an organism is reduced, and the pain of a patient is reduced.

This blood vessel support has still set up the barrier film and has been used for the broken hole on the shutoff blood vessel, and the support body probably leads to the blood vessel damaged at the in-process of expansion promptly, and blood flows and then threatens patient's life, carries out quick shutoff through the barrier film and helps reducing the outflow of blood, guarantees patient's life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vascular support has solved the not adjustable problem of length of current vascular support.

The utility model discloses the technical scheme who adopts does:

the blood vessel stent comprises a catheter and a stent component arranged on the catheter;

the stent component comprises a stent body for expanding blood vessels and a barrier film for plugging the damage of the blood vessels, the stent body consists of a plurality of stents, and connecting pieces are arranged between adjacent stents;

the barrier film comprises a first operating pipe arranged on the guide pipe in a sliding mode and a film body connected with the first operating pipe, the first operating pipe is pushed and pulled to drive the film body to slide on the guide pipe, and the film body is provided with a connecting structure.

Preferably, the bracket comprises two oppositely arranged brackets and a grid positioned between the brackets.

Preferably, the frame body and the mesh are both made of degradable material.

Preferably, the connecting piece is including setting up the spread groove on the support body, the spread groove on the adjacent support body sets up relatively to reach the connector of pegging graft in the spread groove.

Preferably, the linker comprises a bulk agent.

Preferably, the connecting structure comprises a first connecting structure for connecting the first operating pipe and the membrane body, the first connecting structure comprises a connecting hole arranged on the membrane body, and the connecting hole is matched with the first operating pipe;

and the second connecting structure is used for connecting the support body and the membrane body, the second connecting structure comprises a flexible layer positioned on the membrane body, and when the membrane body expands to block, the flexible layer is contacted with the support body and forms a groove body matched with the support body.

Preferably, the membrane body is made of a degradable material.

Preferably, the intravascular stent further comprises a balloon arranged on the catheter in a sliding manner, the balloon comprises a second operating tube arranged on the catheter and a balloon arranged on the catheter in a sliding manner, and the second operating tube is pushed and pulled to drive the balloon to slide on the catheter.

Preferably, the first and second handling tubes are both disposed within the catheter;

the guide pipe is provided with a first sliding groove matched with the first operating pipe and a second sliding groove matched with the second operating pipe.

Preferably, the blood vessel support further comprises a dust cover, and the dust cover is provided with a mark for displaying specifications.

The utility model has the advantages that:

this blood vessel support's support body comprises a plurality of support, when utilizing the support to support the blood vessel, the length of the blood vessel that supports as required selects the support quantity that is used for supporting the blood vessel, and then avoids the support body to the influence of normal blood vessel, reduces the rejection reaction of organism, reduces patient's misery.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings may be obtained from these drawings without inventive effort.

FIG. 1 is a schematic structural view of a vascular stent;

FIG. 2 is a cross-sectional structural schematic view of a vascular stent;

FIG. 3 is a schematic view of the structure of a catheter;

fig. 4 is a partially enlarged schematic view of a structure at a.

In the figure: 1-a catheter; 11-a first sliding groove; 12-a second sliding groove; 2-a bracket assembly; 21-a stent body; 22-a barrier film; 211-a scaffold; 212-a connector; 211 a-frame; 211 b-grid; 212 a-a linker; 221-a first handling tube; 222-a membrane body; 3-a balloon; 31-a capsule body; 32-a second handling tube; 41-a first connecting structure; 42-second connecting structure.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 4, the blood vessel stent of the present embodiment includes a catheter 1 and a stent assembly 2 disposed on the catheter 1;

the stent component 2 comprises a stent body 21 for expanding blood vessels and a barrier film 22 for blocking the blood vessels from being damaged, wherein the stent body 21 consists of a plurality of stents 211, and connecting pieces 212 are arranged between every two adjacent stents 211;

the barrier film 22 comprises a first operation tube 221 slidably disposed on the guide tube 1 and a film body 222 connected to the first operation tube 221, wherein the film body 222 is driven to slide on the guide tube 1 by pushing and pulling the first operation tube 221, and a connection structure is disposed on the film body 222.

The intravascular stent is characterized in that an inner stent 211 is placed in a lesion section on the basis of the expansion forming of a lumen saccule so as to achieve the purposes of supporting a blood vessel at a stenotic occlusion section, reducing the elastic retraction and reshaping of the blood vessel and keeping the blood flow of a lumen unobstructed.

The existing vascular stents can be divided into a self-expanding type and a balloon expanding type according to the expanding mode in the blood vessel. The former stent is, for example, a Z-shaped stent 211 or a mesh-shaped stent 211, and is capable of self-expanding in a blood vessel. The latter is not elastic by itself and is attached to the vessel by means of the expansion of the balloon to a certain diameter value.

The length of the existing blood vessel support can not be adjusted, when the blood vessel required to be supported is short, the support 211 can be contacted with the normal blood vessel, so that the rejection reaction of an organism is increased, and meanwhile, the normal blood vessel is diseased.

In order to solve the problem that the length of the existing blood vessel support is not adjustable, the blood vessel support is designed, the support body 21 of the blood vessel support consists of a plurality of supports 211, when the supports 211 are used for supporting blood vessels, the quantity of the supports 211 used for supporting the blood vessels is selected according to the length of the blood vessels supported by needs, the influence of a support body 211a on normal blood vessels is further avoided, the rejection reaction of an organism is reduced, and the pain of a patient is reduced.

This blood vessel support has still set up barrier film 22 and has been used for the broken hole on the shutoff blood vessel, and support body 211a is at the in-process of expansion promptly, and support body 211a probably leads to the blood vessel damaged, and blood flows out and then endangers patient's life, carries out quick shutoff through barrier film 22 and helps reducing the outflow of blood, guarantees patient's life.

The following describes the use of the stent with reference to the specific structure of the stent, specifically, after the affected part is imaged, the body is opened, the catheter 1 is placed in the blood vessel, and the stent component 2 is moved only to the narrow blood vessel by pushing and pulling the catheter 1; the second operating tube 32 is then operated to slide the balloon 31 over the catheter 1, the balloon 31 is inflated by ventilating the balloon 31, the inflated balloon 31 applies a force to the stent 211 and inflates the stent 211, thereby causing the stent 211 to support the blood vessel.

The number of the required stents 211 is selected according to the length of the narrow blood vessel, the second operating tube 32 is repeatedly operated to enable the balloon 31 to be aligned with different stents 211 and complete the expansion of the stents 211, so that the narrow blood vessel is completely supported, the blood flow is accelerated, and the pain of a patient is relieved.

When the blood vessel is damaged in the process of supporting the blood vessel by the bracket 211, the first operating tube 221 is operated to slide the membrane body 222 on the catheter 1, and the membrane body 222 slides to the damaged part of the blood vessel; the second operating tube 32 is operated again to enable the balloon 31 to slide to the lower side of the membrane body 222, the balloon 31 is ventilated to complete the expansion of the membrane body 222, and the expanded membrane body 222 seals the damaged part of the blood vessel to further reduce bleeding.

The following describes the use of the stent in conjunction with the specific structure of each component of the stent.

In the specific embodiments provided by the present disclosure, the holder 211 may be configured in any suitable configuration. Alternatively, the bracket 211 includes two oppositely disposed frame bodies 211a and a grid 211b between the frame bodies 211 a.

The structure of the stent 211 will now be described, wherein the stent body 211a is adapted to the shape of the corresponding blood vessel, generally in a ring shape; meanwhile, the size of the shelf 211a varies according to the supported blood vessel support.

Specifically, as an option, the frame body 211a and the mesh 211b are made of degradable materials. Can remain in the organism when support vessel of support body 21, can arouse the rejection reaction of organism, in order to avoid long-term use after support body 21 to the influence of organism, support body 211a and net 211b are degradable material and make, use automatic degradation after a period, are favorable to reducing the rejection reaction of organism.

More specifically, the frame body 211a and the mesh 211b may be made of magnesium alloy for a human body.

In the specific embodiments provided by the present disclosure, the connector 212 may be configured in any suitable configuration. Alternatively, the connection member 212 includes a connection groove disposed on the frame body 211a, the connection grooves disposed on adjacent frame bodies 211a are opposite to each other, and a connection body 212a inserted into the connection groove.

Now, the structure of the connecting member 212 will be described, wherein, since the stent body 21 is composed of a plurality of stents 211, the arrangement of the connecting member 212 between adjacent stents 211 avoids the stents 211 sliding on the catheter 1, which is beneficial to improving the efficiency of supporting blood vessels. Meanwhile, the connecting piece 212 is simple in structure and convenient to manufacture, and production cost is reduced.

The connection body 212a is broken after the stents 211 are expanded, and the connection relationship between the adjacent stents 211 is released.

Specifically, the connecting body 212a can alternatively include a bulk medicament. For the material of the connecting body 212a, two considerations are provided for selecting a bulk medicament, namely that the bracket 211 extends into the body and is close to the focus, which is beneficial to the treatment of the body; meanwhile, the rejection reaction between the body and the bracket 211 is considered, so that the block-shaped medicament is used for relieving the rejection reaction and reducing the discomfort of the patient.

In the specific embodiments provided in the present disclosure, the connecting structure may be configured in any suitable configuration. Alternatively, the connecting structure includes a first connecting structure 41 for connecting the first operating pipe 221 and the film body 222, the first connecting structure 41 including a connecting hole provided on the film body 222, the connecting hole matching the first operating pipe 221;

and the second connecting structure 42 is used for connecting the frame body 211a and the membrane body 222, the second connecting structure 42 comprises a flexible layer positioned on the membrane body 222, and when the membrane body 222 expands for plugging, the flexible layer is in contact with the frame body 211a and forms a groove body matched with the frame body 211 a.

The structure of the connection structure will now be described, in which the membrane body 222 is switched between two states during use, namely a contracted state on the sliding arrangement catheter 1 and an expanded state in which the blood vessel is occluded after expansion.

In the contracted state, the membrane body 222 is connected with the first operation tube 221, so that the doctor can change the position of the membrane body 222 on the catheter 1 through the first operation tube 221, and the membrane body 222 can not interfere with the expansion of the stent 211 and can move to the damaged part of the blood vessel in time; moreover, since the membrane body 222 needs to be expanded, in order to reduce the difficulty of expanding the membrane body 222, the structure of the first connecting structure 41 cannot be too complicated, so as to avoid increasing the difficulty of separating the first operating tube 221 from the membrane body 222.

When the inflation state, in order to guarantee the shutoff performance of the membrane body 222, avoid the membrane body 222 to break away from, the event has set up the flexible layer in the outside of membrane body 222, and the flexible layer contacts behind the support body 211a and warp and then connect membrane body 222 and support body 211a, has increased the tie point of membrane body 222, effectively avoids the membrane body 222 to break away from the damaged department of blood vessel under the blood stream strikes.

Specifically, the membrane body 222 is alternatively made of a degradable material. The damaged blood vessel will recover after a period of time, and in order to reduce rejection and avoid the operation of removing the membrane body 222, the membrane body 222 is also made of degradable material, thereby reducing additional operation and pain of the patient.

In the specific embodiments provided by the present disclosure, the vascular stent may be configured in any suitable configuration. Alternatively, the vessel stent further comprises a balloon 3 slidably arranged on the catheter 1, the balloon 3 comprises a second operating tube 32 positioned on the catheter 1 and a balloon 31 slidably arranged on the catheter 1, and the second operating tube 32 is pushed and pulled to drive the balloon 31 to slide on the catheter 1.

The structure of the stent is now supplemented, wherein the balloon 3 is provided on the catheter 1, since the stent 211 and the membrane 222 are both required to be expanded, the expansion operation of the stent 211 is selective, and the self-expanding stent is not beneficial to the selection of the supporting length of the stent 211.

The balloon 31 slides on the catheter 1 through the second operating tube 32, so as to selectively support the stent 211, and control of the supporting length of the blood vessel is realized.

Specifically, as an option, the first operation tube 221 and the second operation tube 32 are both disposed inside the catheter 1;

the guide tube 1 is provided with a first sliding groove 11 matching with the first operation tube 221 and a second sliding groove 12 matching with the second operation tube 32.

Now, the placement positions of the first operation tube 221 and the second operation tube 32 will be described, wherein, taking the first operation tube 221 as an example, in order to avoid the first operation tube 221 contacting with the blood vessel and further increasing the pain of the patient and causing additional injury during the process of the catheter 1 entering the stenosed blood vessel, the first operation tube 221 is disposed in the catheter 1, which effectively increases the grippability of the first operation tube 221 at the position of the catheter 1 entering the stenosed blood vessel.

The second operation tube 32 is configured to have the same function as the first operation tube 221, and will not be described in detail herein.

Specifically, as an option, the blood vessel support further comprises a dust cover, and the dust cover is provided with a mark for displaying specifications.

Now, the structure of the blood vessel stent is continuously supplemented, specifically, because the length of the narrow blood vessel has uncontrollable property, in order to better match the length of the narrow blood vessel, the length of the stent 211 has a plurality of specifications, and the length of the stent body 21 also has a plurality of specifications, so that a doctor can select the length according to the actual situation; in order to facilitate the selection of different specifications, the dust cover is provided with a mark for convenient use.

Meanwhile, the dust cover can avoid the direct contact of the bracket component 2 and the external environment, and reduce the difficulty and the required time of the disinfection and cleaning of the bracket component 2.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, various possible combinations will not be separately described in this disclosure.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims

1. A vascular stent characterized by: comprises a catheter (1) and a bracket component (2) arranged on the catheter (1);

the stent component (2) comprises a stent body (21) for expanding blood vessels and a barrier film (22) for blocking the damage of the blood vessels, wherein the stent body (21) consists of a plurality of stents (211), and connecting pieces (212) are arranged between adjacent stents (211);

the barrier film (22) comprises a first operating pipe (221) arranged on the guide pipe (1) in a sliding mode and a film body (222) connected with the first operating pipe (221), the first operating pipe (221) is pushed and pulled to drive the film body (222) to slide on the guide pipe (1), and a connecting structure is arranged on the film body (222).

2. The vascular stent of claim 1, wherein: the support (211) comprises two oppositely arranged support bodies (211a) and grids (211b) positioned between the support bodies (211 a).

3. The vascular stent of claim 2, wherein: the frame body (211a) and the grid (211b) are both made of degradable materials.

4. The vascular stent of claim 2, wherein: the connecting piece (212) comprises connecting grooves arranged on the frame body (211a), the connecting grooves on the adjacent frame bodies (211a) are oppositely arranged, and connecting bodies (212a) inserted in the connecting grooves.

5. The vascular stent of claim 4, wherein: the connecting body (212a) includes a bulk agent.

6. The vascular stent of claim 2, wherein: the connecting structure comprises a first connecting structure (41) for connecting the first operating pipe (221) and the membrane body (222), the first connecting structure (41) comprises a connecting hole arranged on the membrane body (222), and the connecting hole is matched with the first operating pipe (221);

and the second connecting structure (42) is used for connecting the frame body (211a) and the membrane body (222), the second connecting structure (42) comprises a flexible layer positioned on the membrane body (222), and when the membrane body (222) expands for blocking, the flexible layer is contacted with the frame body (211a) and forms a groove body matched with the frame body (211 a).

7. The vascular stent of claim 6, wherein: the membrane body (222) is made of a degradable material.

8. The vascular stent of claim 6, wherein: the intravascular stent further comprises a balloon (3) which is arranged on the catheter (1) in a sliding mode, the balloon (3) comprises a second operating tube (32) which is arranged on the catheter (1) and a balloon body (31) which is arranged on the catheter (1) in a sliding mode, and the balloon body (31) is driven to slide on the catheter (1) by pushing and pulling the second operating tube (32).

9. The vascular stent of claim 8, wherein: the first operating tube (221) and the second operating tube (32) are both arranged inside the catheter tube (1);

the guide pipe (1) is provided with a first sliding groove (11) matched with the first operating pipe (221) and a second sliding groove (12) matched with the second operating pipe (32).

10. The vascular stent of claim 1, wherein: the blood vessel support further comprises a dust cover, and marks for displaying specifications are arranged on the dust cover.