CN2643861Y - Blood vessel bracket with close unit - Google Patents
Blood vessel bracket with close unit Download PDFInfo
- Publication number
- CN2643861Y CN2643861Y CN 03255393 CN03255393U CN2643861Y CN 2643861 Y CN2643861 Y CN 2643861Y CN 03255393 CN03255393 CN 03255393 CN 03255393 U CN03255393 U CN 03255393U CN 2643861 Y CN2643861 Y CN 2643861Y
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- CN
- China
- Prior art keywords
- connecting rod
- agent structure
- closed cell
- pole
- bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model designs a blood vessel bracket with a closed unit, comprising a plurality of main body structure poles in a sine wave shape and a connecting pole. Wherein, the two ends of the connecting pole are connected with the sine wave peaks of the two neighboring main body structure poles. The utility model is characterized in that the sine wave peaks of each main body structure pole all pass through the connecting pole and realize connection with the sine wave peaks of another main body structure pole which forms a unit in a closed shape with the connecting pole; the connecting pole includes the straight poles at the two ends and a plurality of bend poles in an n shape connected with the straight pole. The blood vessel bracket designed for the closed unit of the utility model has the advantages of perfect plasticity and comparatively high axial supporting intensity, in particular, applying to the circuity or the severe pathological changes of calcify; and meantime, providing a comparatively little vertical retraction after the bracket opening, being good for the positioning in the surgery.
Description
Technical field
This utility model relates to a class medical apparatus and instruments, is specifically related to a kind of intravascular stent that vessel lumen is narrow, block caused various disease conditions that is used for the treatment of.
Background technology
Compare with traditional surgical operation, interventional therapeutic technique has advantages such as wound is little, recovery is fast.In recent years, this technical development is rapid, and the trend of popularizing is gradually arranged.
The effect of endovascular stent comprises the elastical retraction that reduces postangioplasty, and the sealing tunica intima is torn sheet, and the incidence rate of acute obturation when reducing angioplasty reduces the incidence rate of restenosis etc.Ideal support should have features such as observability, flexibility, stability and non-thrombogenicity under the X line, yet various supports in the market still can not be realized the perfect unity of each technical specification, particularly vertical flexibility of support and radial support power are poor, the adherent property of blood vessel is not good, is not suitable for bending, becomes the bigger blood vessel in angle.
Summary of the invention
The technical issues that need to address of the present utility model are to provide a kind of intravascular stent with closed cell, to overcome the above-mentioned defective that prior art exists.
The technical solution of the utility model:
Intravascular stent with closed cell of the present utility model, comprise a plurality of sinuous agent structure bar and connecting rod formations of being, the two ends of said connecting rod are connected with the sinusoidal wave crest of adjacent two agent structure bars, it is characterized in that, the sinusoidal wave crest of each agent structure bar all is connected with the sinusoidal wave crest of adjacent another agent structure bar by connecting rod, and agent structure bar and connecting rod are formed and constituted a unit that is closed;
Said connecting rod comprises the straight-bar and a plurality of knees that are " n " type that are connected with straight-bar at its two ends.
The advantage of the intravascular stent of closed cell design of the present utility model is: have good flexibility and higher radial support intensity, be particularly suitable for pathological changes tortuous or that calcification is serious.It is less that support struts the vertical cripetura in back simultaneously, is beneficial to the location in the operation.
Description of drawings
Fig. 1 is the flat deployable structure sketch map of a kind of intravascular stent in the closed cell design of the present utility model.
Fig. 2 is corresponding support pictorial diagram, and wherein every ring of agent structure is made up of 6 complete sine waves, and the number of " n " shape connecting rod is 4.
Fig. 3 is two " n " vertical shape connecting rod sketch map.
Fig. 4 is two " n " inclination shape connecting rod sketch maps.
Fig. 5 is for having the vertical shape connecting rod sketch map of 4 " n ".
Fig. 6 is for having the vertical shape connecting rod sketch map of a plurality of " n ".
The specific embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, the intravascular stent of closed cell design of the present utility model, comprise a plurality of sinuous agent structure bar 1 and connecting rod formations of being, the two ends of said connecting rod are connected with the sinusoidal wave crest of adjacent two agent structure bars 1, it is characterized in that, the sinusoidal wave crest of each agent structure bar 1 all is connected with the sinusoidal wave crest of adjacent another agent structure bar 1 by connecting rod, and agent structure bar 1 and connecting rod are formed and constituted a unit 4 that is closed;
By figure simultaneously as seen, said connecting rod comprises the straight-bar 2 and a plurality of knees 3 that are " n " type that are connected with straight-bar 2 at its two ends;
By Fig. 3, Fig. 4, Fig. 5, Fig. 6 as seen, said knee 3 can be provided with a plurality of " n ", and various angle of inclination.
Further, the width of connecting rod is less than the width of agent structure bar 1;
Further again, each sinusoidal wave wave crest is provided with reinforcing ring 5, and connecting rod is connected with agent structure bar 1 by reinforcing ring 5, and the width of reinforcing ring 5 is less than the width at sinusoidal wave-wave waist place.
Claims (8)
1. intravascular stent with closed cell, comprise a plurality of sinuous agent structure bar (1) and connecting rod formations of being, the two ends of said connecting rod are connected with the sinusoidal wave crest of adjacent two agent structure bars (1), it is characterized in that, the sinusoidal wave crest of each agent structure bar (1) all is connected with the sinusoidal wave crest of adjacent another agent structure bar (1) by connecting rod, and agent structure bar (1) and connecting rod are formed and constituted a unit (4) that is closed.
2. the intravascular stent with closed cell according to claim 1 is characterized in that, said connecting rod comprises the straight-bar (2) and the knee that is " n " type (3) that is connected with straight-bar (2) at its two ends.
3. the intravascular stent with closed cell according to claim 2 is characterized in that, said knee (3) is provided with a plurality of " n ", and various angle of inclination.
4. according to claim 1,2 or 3 described intravascular stents, it is characterized in that the width of connecting rod is less than the width of agent structure bar (1) with closed cell.
5. according to claim 1,2 or 3 described intravascular stents with closed cell, it is characterized in that each sinusoidal wave wave crest is provided with reinforcing ring (5), connecting rod is connected with agent structure bar (1) by reinforcing ring (5).
6. the intravascular stent with closed cell according to claim 5 is characterized in that, the width of reinforcing ring (5) is less than the width at sinusoidal wave-wave waist place.
7. the intravascular stent with closed cell according to claim 4 is characterized in that, each sinusoidal wave wave crest is provided with reinforcing ring (5), and connecting rod is connected with agent structure bar (1) by reinforcing ring (5).
8. the intravascular stent with closed cell according to claim 7 is characterized in that, the width of reinforcing ring (5) is less than the width at sinusoidal wave-wave waist place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255393 CN2643861Y (en) | 2003-07-08 | 2003-07-08 | Blood vessel bracket with close unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255393 CN2643861Y (en) | 2003-07-08 | 2003-07-08 | Blood vessel bracket with close unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2643861Y true CN2643861Y (en) | 2004-09-29 |
Family
ID=34294922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03255393 Expired - Lifetime CN2643861Y (en) | 2003-07-08 | 2003-07-08 | Blood vessel bracket with close unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2643861Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102068331A (en) * | 2010-04-20 | 2011-05-25 | 微创医疗器械(上海)有限公司 | Bifurcate blood vessel stent |
| CN101579268B (en) * | 2008-05-15 | 2012-06-20 | 微创医疗器械(上海)有限公司 | Reticulated endovascular stent |
| WO2023072227A1 (en) * | 2021-11-01 | 2023-05-04 | 上海微创医疗器械（集团）有限公司 | Vascular stent |
-
2003
- 2003-07-08 CN CN 03255393 patent/CN2643861Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101579268B (en) * | 2008-05-15 | 2012-06-20 | 微创医疗器械(上海)有限公司 | Reticulated endovascular stent |
| CN102068331A (en) * | 2010-04-20 | 2011-05-25 | 微创医疗器械(上海)有限公司 | Bifurcate blood vessel stent |
| WO2011131115A1 (en) * | 2010-04-20 | 2011-10-27 | 微创医疗器械(上海)有限公司 | Stent for bifurcated vessel |
| CN102068331B (en) * | 2010-04-20 | 2013-08-07 | 上海微创医疗器械（集团）有限公司 | Bifurcate blood vessel stent |
| WO2023072227A1 (en) * | 2021-11-01 | 2023-05-04 | 上海微创医疗器械（集团）有限公司 | Vascular stent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130708 Granted publication date: 20040929 |