CN201519215U - coronary stent - Google Patents

Abstract

The utility model relates to a coronary stent, comprising a plurality of metal main body units, wherein adjacent metal main body units are interconnected by connecting pieces to form a tube wall annular stent, wherein the connecting piece is composed of two S-shaped structures, the two S-shaped structures are arranged in a straight line, and the adjacent ends of the two S-shaped structures are connected to each other, and the free ends of the two S-shaped structures are respectively connected to the adjacent metal main body units; thereby, since the connecting piece composed of the two S-shaped structures arranged in a straight line has a large expansion and contraction space, the supporting force and flexibility can be effectively improved, and the expansion performance can be improved, which is beneficial to clinical application.

Description

coronary stent

technical field

The utility model relates to the technology in the field of medical equipment, in particular to a coronary stent.

Background technique

Coronary stent technology is a minimally invasive interventional therapy for coronary arteries. In the treatment of coronary heart disease, a coronary stent will be implanted in the infarcted coronary artery to allow the blood to continue to flow. It has gradually become the most effective and commonly used method. As a treatment method, the coronary stent has attracted more and more attention since its clinical application. Coronary stents have very high technical requirements, and the clinical requirements for the material of the stent are very strict, not only very thin, but also quite strong. The traditional coronary stent is composed of a plurality of metal bodies connected by connecting rods to form a circular stent with a cylindrical wall. However, the traditional connecting rods adopt a straight line structure, or a "v" or "n" or "s" shape structure, and its supporting force, There are deficiencies in flexibility and expansibility, which will affect the final clinical results and are not conducive to market promotion.

Utility model content

The main purpose of the utility model is to provide a coronary stent, which can effectively improve the support force and flexibility, and improve the expansion performance, which is beneficial to clinical application.

In order to achieve the above-mentioned purpose, the utility model takes the following technical solutions:

A coronary stent, including a plurality of metal main body units, adjacent metal main body units are connected to each other by connectors to form a tube wall annular stent, the connectors are composed of two S-shaped structures, and the two S-shaped structures are arranged in a line , and the adjacent ends of the two S-shaped structures are connected to each other, and the free ends of the two S-shaped structures are respectively connected to adjacent metal main body units.

The metal main body unit is connected as a whole by a plurality of arc-shaped sections, and the arc-shaped section is provided with an inner concave surface and an outer convex surface, and the two outer convex surfaces of adjacent metal main body units are connected by free ends of two S-shaped structures.

The metal main body unit is connected as a whole by a plurality of arc segments, and the arc segment is provided with an inner concave surface and an outer convex surface, and the two inner concave surfaces of adjacent metal main body units are connected by free ends of two S-shaped structures.

The metal main body unit is connected as a whole by a plurality of arc-shaped sections, and the arc-shaped section is provided with an inner concave surface and an outer convex surface, and the inner concave surface and the outer convex surface of adjacent metal main body units are connected by free ends of two S-shaped structures .

The utility model has the advantage that the adjacent metal main body units are connected by a connecting piece composed of two S-shaped structures arranged in a line, so that the expansion and contraction space is large, which can effectively improve the supporting force and flexibility, and improve the expansion performance, which is beneficial to clinical application.

Description of drawings

Fig. 1 is the structural representation of the first embodiment of the utility model;

Fig. 2 is a schematic structural diagram of a second embodiment of the present invention;

Fig. 3 is a schematic structural view of a third embodiment of the present invention;

Explanation of reference numbers:

10. Metal main body unit 11. Arc section

11a, inner concave surface 11b, outer convex surface

20. Connector 21. S-shaped structure

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, it is the first embodiment of the present utility model; a coronary stent comprising a plurality of metal main body units 10, adjacent metal main body units 10 are connected to each other by connectors 20 to form a tube wall annular stent, wherein:

The metal main body unit 10 is connected as a whole by a plurality of arc-shaped segments 11. The arc-shaped segment 11 is provided with an inner concave surface 11a and an outer convex surface 11b. The two outer convex surfaces 11b of adjacent metal main body units 10 can be directly opposite or Obliquely staggered, no limitation is imposed here.

The connector 20 is composed of two S-shaped structures 21, the two S-shaped structures 21 are arranged in a line, and the adjacent ends of the two S-shaped structures 21 are connected to each other, and the free ends of the two S-shaped structures 21 are adjacent to each other. between the two convex surfaces 11b of the metal main unit. Thereby, effective stretching can be performed through the two S-shaped structures 21a.

As shown in Figure 2, it is the second embodiment of the present utility model; a coronary stent comprising a plurality of metal main body units 10, adjacent metal main body units 10 are connected to each other by connectors 20 to form a tube wall annular stent, wherein:

The metal body unit 10 is connected as a whole by a plurality of arc-shaped segments 11. The arc-shaped segment 11 is provided with an inner concave surface 11a and an outer convex surface 11b. Obliquely staggered, no limitation is imposed here.

The connector 20 is composed of two S-shaped structures 21, the two S-shaped structures 21 are arranged in a line, and the adjacent ends of the two S-shaped structures 21 are connected to each other, and the free ends of the two S-shaped structures 21 are adjacent to each other. Between the two inner concave surfaces 11a of the metal main body unit. In this way, the two S-shaped structures 21a can be effectively stretched.

As shown in Figure 3, it is the third embodiment of the present utility model; a coronary stent comprising a plurality of metal main body units 10, adjacent metal main body units 10 are connected to each other by connectors 20 to form a tube wall annular stent, wherein:

The metal main body unit 10 is connected as a whole by a plurality of arc-shaped segments 11, and the arc-shaped segment 11 is provided with an inner concave surface 11a and an outer convex surface 11b, and the inner concave surface 11a and the outer convex surface 11b of the adjacent metal main body unit 10 are facing each other. Or obliquely staggered, no limitation is imposed here.

The connector 20 is composed of two S-shaped structures 21 arranged in a straight line, and the adjacent ends of the two S-shaped structures 21 are connected to each other. The convex surfaces 11 b are connected by free ends of two S-shaped structures 21 .

The difference between this embodiment and the above embodiments is only that the corresponding position of the arc segment 11 in the metal main body unit 10 is different, and their functions are the same, so no limitation is imposed here.

The key point of the design of the utility model is to connect the adjacent metal main body units through the connecting piece composed of two S-shaped structures arranged in a straight line, so that the expansion and contraction space is large, which can effectively improve the supporting force and flexibility, and improve the expansion performance, which is beneficial to clinical application. .

The above is only a preferred embodiment of the structure of the utility model, and does not limit the technical scope of the utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model , all still belong to the scope of the technical solution of the utility model.

Claims (4)

1. coronary artery bracket, comprise a plurality of metal masters unit, the adjacent metal main unit is interconnected by connector and constitutes the tube wall ring support, it is characterized in that: described connector is made up of two S type structures, this two S type structure is in-line and arranges, and the abutting end of this two S type structure is connected to each other, and the free end of this two S type structure is connected with the adjacent metal main unit respectively.

2. according to the described coronary artery bracket of claim 1, it is characterized in that: described metal master unary system is connected as a single entity by a plurality of segmental arcs, this segmental arc is provided with inner concave and outer convex surface, and the free end by two S type structures between the two outer convex surfaces of adjacent metal main unit connects.

3. according to the described coronary artery bracket of claim 1, it is characterized in that: described metal master unary system is connected as a single entity by a plurality of segmental arcs, this segmental arc is provided with inner concave and outer convex surface, and the free end by two S type structures between two inner concaves of adjacent metal main unit connects.

4. according to the described coronary artery bracket of claim 1, it is characterized in that: described metal master unary system is connected as a single entity by a plurality of segmental arcs, this segmental arc is provided with inner concave and outer convex surface, and the free end by two S type structures between the inner concave of adjacent metal main unit and the outer convex surface is connected.

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