CN202740162U

CN202740162U - Novel vessel rack

Info

Publication number: CN202740162U
Application number: CN 201220066831
Authority: CN
Inventors: 李业中
Original assignee: Jiangsu Huaxing Medical Instruments Industry Co Ltd
Current assignee: Jiangsu Huaxing Medical Instruments Industry Co Ltd
Priority date: 2012-02-27
Filing date: 2012-02-27
Publication date: 2013-02-20
Anticipated expiration: 2022-02-27

Abstract

The utility model discloses a novel vessel rack, comprising a main structure rod and a connecting rod. The main structure rod comprises a plurality of circular ring structure bodies. The circular ring structure body is composed of a plurality of parallelogram-shaped basic units. An S-shaped structure accessory is disposed between two opposite angles of the parallelogram-shaped basic unit. The plurality of circular ring structure bodies are connected through the connecting rod. The outer surface of the novel vessel rack is coated with a medicament coating. The novel vessel rack is advantageous in that the rack has good axial flexibility; good radial support force is possessed after the rack is expanded, and the rack can have a good applying effect with the inner wall of a blood vessel; the medicament coating can reduce the restenosis rate of the blood vessel, and can to some extent change the "edge effect" of the end part of the rack, which is easier to undergo restenosis.

Description

Novel vascular stent

Technical field

This utility model relates to medical instruments field, particularly relates to a kind of novel vascular stent.

Background technology

Now social, the prevalence of cardiovascular disease is more and more higher, endangers also increasing.For fear of operating excessive risk, intravascular Interventional Treatment becomes the main method of vascular lesion treatment gradually, the method has that wound is little, few intercurrent disease, safe, the patient suffering is few, the heavy advantage such as also can tolerate of easy acceptance, a year high state of an illness.Percutaneous endoluminal vascular interventional therapy is for blood vessel wall provides inner support, and reconstruct lumen of vessels body.For example, intravascular stent struts Endovascular atherosclerotic stenosis pathological changes; Blood vessel covered stent is used for blood vessel cavity and the channel of blood flow of reconstruct generation pathological changes.

Intravascular stent requires to fit with blood vessel, and requiring has enough support forces and keeps the unimpeded of blood vessel blood vessel, because in use, the shape of blood vessel is usually comparatively crooked, so intravascular stent can't be fitted completely with blood vessel usually, in order to realize fitting, intravascular stent need to be made softerly, but the common tension force of this support is limited, can't effectively support vascularization, so existing intravascular stent is structurally varied, but all can't satisfy simultaneously above-mentioned two conditions, structure is reasonable not.

The utility model content

The technical problem that this utility model mainly solves provides a kind of novel vascular stent, can be so that support has good axial pliability and radial support power.

For solving the problems of the technologies described above, the technical scheme that this utility model adopts is: a kind of novel vascular stent is provided, comprise: main structure bar and connecting rod, described main structure bar comprises a plurality of circular ring structure bodies, described circular ring structure body is comprised of a plurality of parallelogram elementary cells, described parallelogram elementary cell is provided with the serpentine structural acessory between two diagonal angles, and described a plurality of circular ring structure bodies connect by connecting rod, and described novel vascular stent outer surface is coated with medication coat.

In preferred embodiment of this utility model, the material of described novel vascular stent is magnesium alloy or Nitinol, forms through engraving.

In preferred embodiment of this utility model, described connecting rod is oblique serpentine or " several " font.

In preferred embodiment of this utility model, described intravascular stent outer surface is equipped with a plurality of blind holes in irregular shape.

In preferred embodiment of this utility model, described blind hole the intravascular stent surface to be distributed as two ends close, middle dredging.

The beneficial effects of the utility model are: this utility model novel vascular stent, has good axial pliability, after the support expansion, has better radial support power, form good applying effect with blood vessel, medication coat can reduce the vascular restenosis rate, can also improve to a certain extent in addition " edge effect " of the easier generation restenosis of bracket end.

Description of drawings

Fig. 1 is the structural representation of a preferred embodiment of this utility model novel vascular stent;

Fig. 2 is the structural representation of another preferred embodiment of this utility model novel vascular stent;

The labelling of each parts is as follows in the accompanying drawing: 1, main structure bar, 2, connecting rod, 11, the parallelogram elementary cell, 12, the serpentine structural acessory.

The specific embodiment

Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that protection domain of the present utility model is made more explicit defining.

See also Fig. 1 and Fig. 2, this utility model embodiment comprises:

A kind of novel vascular stent, comprise: main structure bar 1 and connecting rod 2, described main structure bar 1 comprises a plurality of circular ring structure bodies, described circular ring structure body is comprised of a plurality of parallelogram elementary cells 11, described parallelogram elementary cell is provided with serpentine structural acessory 12 between two diagonal angles, described a plurality of circular ring structure body connects by connecting rod 2, and described novel vascular stent outer surface is coated with medication coat.

The combination of described parallelogram elementary cell 11 and serpentine structural acessory 12 is so that support has better radial support power.The medication coat that the intravascular stent outer surface applies can effectively reduce the vascular restenosis rate.

The material of described novel vascular stent is magnesium alloy or Nitinol, forms through engraving, and magnesium alloy and Nitinol all have good biocompatibility and certain mechanical strength.

As shown in Figure 1, described connecting rod 2 is oblique serpentine, and is so that intravascular stent has good axial pliability, rational in infrastructure.

As shown in Figure 2, described connecting rod 2 is " several " shape, and is so that intravascular stent has good axial pliability, rational in infrastructure.

Described intravascular stent outer surface is equipped with a plurality of blind holes in irregular shape, can be used for medicament-carriedly, increases drug loading, better improves the restenosis rate of blood vessel.

Described blind hole the intravascular stent surface to be distributed as two ends close, middle dredging.Washing away of intravascular stent near-end blood is more serious, and medicine is easier to be peeled off, and causes the end therapeutic effect to reduce, and easier generation vascular restenosis is called " edge effect ".Blind hole on the intravascular stent can be medicament-carried, adopts two ends close, and middle distribution of dredging so that the drug loading of end is larger, can prevent the generation of this phenomenon to a certain extent.

The novel vascular stent that this utility model discloses, has good axial pliability, after the support expansion, has better radial support power, form good applying effect with blood vessel, medication coat can reduce the vascular restenosis rate, can also improve to a certain extent in addition " edge effect " of the easier generation restenosis of bracket end.

The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes this utility model description and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. novel vascular stent, it is characterized in that, comprise: main structure bar and connecting rod, described main structure bar comprises a plurality of circular ring structure bodies, described circular ring structure body is comprised of a plurality of parallelogram elementary cells, described parallelogram elementary cell is provided with the serpentine structural acessory between two diagonal angles, and described a plurality of circular ring structure bodies connect by connecting rod, and described novel vascular stent outer surface is coated with medication coat.

2. novel vascular stent according to claim 1 is characterized in that, the material of described novel vascular stent is magnesium alloy or Nitinol, forms through engraving.

3. novel vascular stent according to claim 1 is characterized in that, described connecting rod is oblique serpentine or " several " font.

4. novel vascular stent according to claim 1 is characterized in that, described intravascular stent outer surface is equipped with a plurality of blind holes.

5. novel vascular stent according to claim 4 is characterized in that, described blind hole the intravascular stent surface to be distributed as two ends close, middle dredging.