CN201899590U - Balloon dilatation type full-degradable endovascula stent - Google Patents
Balloon dilatation type full-degradable endovascula stent Download PDFInfo
- Publication number
- CN201899590U CN201899590U CN 201020509033 CN201020509033U CN201899590U CN 201899590 U CN201899590 U CN 201899590U CN 201020509033 CN201020509033 CN 201020509033 CN 201020509033 U CN201020509033 U CN 201020509033U CN 201899590 U CN201899590 U CN 201899590U
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- stent
- endovascula
- support
- degradable
- utricle
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Abstract
The utility model relates to a balloon dilatation type full-degradable endovascula stent and belongs to the field of medical apparatus and instruments. The endovascula stent is formed in the manner of laser engraving and comprises a main body and a connecting rod, wherein the top of the main body is provided with a connecting sheath. When the endovascula stent is preassembled, a bulge of the connecting sheath is blocked into a sunken part of an adjacent connecting sheath, so as to fix the endovascula stent on a balloon and further realize implanting the macromolecule full-degradable endovascula stent by utilizing the balloon dilatation. The biocompatibility of the endovascula stent is good and the endovascula stent can be fully degraded.
Description
Technical field
This utility model is a kind of medical apparatus and instruments, the high-fall endovascular stent of separating of especially a kind of macromolecular material.
Background technology
The endovascular stent interventional procedure is that the interventional therapy method is hindered by a kind of novel Wicresoft, since being born, develop very soon, has become the main means of cardiovascular reconstruction.Traditional first generation backbone metal bare bracket and second filial generation backbone metal base band medicine support, though begun large-scale application, but still there are some shortcomings, can reach several months or several years such as the influence to patient after the support implantation, permanent metal rack can weaken MRI or CT image after implanting, metal rack also can disturb the surgery myocardial revascularization in addition, hinder the formation of collateral circulation, having suppressed the positivity of blood vessel reinvents, need give Antiplatelet therapy for a long time, and thrombosis in the support in late period takes place easily.So brand-new Biodegradable material support becomes the development trend of support of future generation, the macromolecular material that can be used for the fully bio-degradable support mainly contains polycarbonate-based material, and PLA class material also has the polylactic acid-polyglycolic acid material.But because macromolecular material is as the good plasticity of metal, in the conveying of support with discharge link and have certain technical barrier.
The utility model content
This utility model patent has solved the problem that the macromolecular material endovascular stent is carried and discharged in the background technology.Provide the high-fall endovascular stent of separating of a kind of balloon-expandable to realize that support is carried and the technology of release.
The high-fall endovascular stent support body 1 of separating of a kind of balloon-expandable is to form by the carbon dioxide laser etching, and its structure comprises multiple " V " shape annular body 5 and connecting rod 4.Except the support two ends, " V " shape annular body 5 drift angles all have a connecting utricle 6, and the connecting utricle 6 that the two ends of connecting rod 4 are passed through is connected to form ring support with adjacent " V " shape annular body 5.Connecting rod 4 existence at interval also can be not at interval.
Connecting utricle 6 is made up of projection and depression, when being contained in support on the sacculus in advance, the jut of two adjacent connecting utricles 6 can insert in the depression, connecting rod 4 can be subjected to the extruding at two ends and its flexibility was increased this moment, and the connecting utricle 6 that presses its two ends makes that the connection between the connecting utricle is more firm, realized the function of self-locking, can well be fixed on the sacculus.
Advantage of the present utility model and good effect are: this novel coronary artery bracket, by polycarbonate-based material, PLA class material also has the polylactic acid-polyglycolic acid material to form tube wall shape through laser ablation, has the Wholly-degradable performance, can not be detained human body for a long time.This utility model design science is reasonable, has solved the high-fall difficult problem of separating support compression conveying release of macromolecule.
Description of drawings:
The design sketch of this New-support of Fig. 1, support support body 1.
The local expanded view of this New-support of Fig. 2, female 2, jut 3, connecting rod 4, " V " shape annular body 5, connecting utricle 6.
Fig. 3 connecting rod is at interval design sketch not.
The specific embodiment:
Embodiment: according to Fig. 1, shown in Figure 2, this novel coronary artery bracket, can be by polycarbonate-based material, PLA class material, also have the polylactic acid-polyglycolic acid material to form, population structure is made up of main body 5 and connecting rod 4, and the adjacent body structure is by the connecting rod connection and form the barrel ring support, a connecting rod existence at interval as shown in Figure 1 also can be at interval as Fig. 3.Agent structure is circulation " V " shape structure, and " V " shape top is a small circle ring, is used for avoiding stress concentration.Except support two, the external connecting utricle 6 of the top annulus of the agent structure of support " V " shape, connecting utricle is made up of a projection and " C " shape depression, when support is compressed, the jut of adjacent connecting utricle can snap into the female of another connecting utricle, makes support integral body can keep compressive state.This routine one week of main body quantity has 6, can increase and reduce according to needs of production.
Operation principle of the present utility model is: utilizes connecting utricle 6, the support of high molecular degradable can be compressed on the sacculus, then can be with in this degradable support implantable intravascular, and the expansion by support recovers the tube chamber lost.
Claims (3)
1. high-fall endovascular stent of separating of balloon-expandable, it is characterized in that: supporting structure comprises multiple " V " shape annular body (5) and connecting rod (4), except the support two ends, " V " shape annular body (5) drift angle all has a connecting utricle (6), and the connecting utricle (6) that the two ends of connecting rod (4) are passed through is connected to form ring support with adjacent " V " shape annular body (5).
2. the high-fall endovascular stent of separating of balloon-expandable according to claim 1, it is characterized in that: described connecting utricle (6) is made up of jut (3) and female (2), and the jut (3) of connecting utricle (6) can snap into the female (2) of adjacent another one connecting utricle (6).
3. the high-fall endovascular stent of separating of balloon-expandable according to claim 2 is characterized in that: the jut (3) of the connecting utricle (6) in the connecting utricle (6) that the two ends of described connecting rod (4) connect snaps into the female (2) of another connecting utricle (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020509033 CN201899590U (en) | 2010-08-27 | 2010-08-27 | Balloon dilatation type full-degradable endovascula stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020509033 CN201899590U (en) | 2010-08-27 | 2010-08-27 | Balloon dilatation type full-degradable endovascula stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201899590U true CN201899590U (en) | 2011-07-20 |
Family
ID=44270192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020509033 Expired - Lifetime CN201899590U (en) | 2010-08-27 | 2010-08-27 | Balloon dilatation type full-degradable endovascula stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201899590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103948459A (en) * | 2014-05-27 | 2014-07-30 | 辽宁生物医学材料研发中心有限公司 | Low-springback high-support coronary artery biodegradable stent |
-
2010
- 2010-08-27 CN CN 201020509033 patent/CN201899590U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103948459A (en) * | 2014-05-27 | 2014-07-30 | 辽宁生物医学材料研发中心有限公司 | Low-springback high-support coronary artery biodegradable stent |
| CN103948459B (en) * | 2014-05-27 | 2016-05-25 | 辽宁生物医学材料研发中心有限公司 | The high coronary artery biodegradable stent that supports of a kind of low resilience |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110720 |