CN203029427U - Coronary stent - Google Patents
Coronary stent Download PDFInfo
- Publication number
- CN203029427U CN203029427U CN 201220705127 CN201220705127U CN203029427U CN 203029427 U CN203029427 U CN 203029427U CN 201220705127 CN201220705127 CN 201220705127 CN 201220705127 U CN201220705127 U CN 201220705127U CN 203029427 U CN203029427 U CN 203029427U
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- China
- Prior art keywords
- tube structure
- wave form
- circular tube
- coronary stent
- waveform
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- 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 - Fee Related
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Abstract
The utility model relates to a metal coronary stent. The coronary stent aims to resolve the problems that an existing stent is not good in expansivity, the expansion is not uniform, and fracture occurs easily in a wave crest or a wave trough of a wave form structure. The coronary stent comprises a netted round tube structure formed by nickel titanium alloy in a laser engraving mode. The netted round tube structure comprises a plurality of wave form bodies and a plurality of n-shaped connection bodies, wherein each wave form body is composed of 2-4 wave form units arranged along the axial direction of the netted round tube structure, each wave form unit is composed of a semi-circle ring and two quart circular rings, the two quart circular rings are symmetrically arranged at two ends of the semi-circle ring, 8-16 wave form bodies are arranged along the circumferential direction of the wave form structure, every two adjacent semi-circle rings in the circumferential direction are symmetrically arranged with one n-shaped connection bodies as the center, and arc top ends of every two adjacent semi-circle rings are connected with each n-shaped connection body. The coronary stent is used for clinically treating coronary heart diseases.
Description
Technical field:
This utility model relates to a kind of metal coronary stent, is specifically related to a kind of coronary artery bracket.
Background technology:
Coronary artery stent implantation is one of effective method for the treatment of coronary heart disease.The stent types of using clinically is a lot of at present, and emphasis has nothing in common with each other, but purpose all is to improve support force, compliance, improves the spreading performance of support etc.Existing support is mostly melted through laser by stainless steel tube and is carved into the netty circular tube structure, and the main component of netty circular tube structure is a plurality of waveform configurations, and the wave crest of each waveform configuration and trough shape are all very precipitous; Though the support of this structure has compliance, the dilatancy of support is bad, thereby causes expanding inhomogeneous, even is easy to generate fracture at wave crest or trough place.
Summary of the invention:
The purpose of this utility model is bad for solving existing support dilatancy, causes expanding inhomogeneous, easily produces the problem of fracture at wave crest or the trough place of waveform configuration, and a kind of coronary artery bracket is provided.
Above-mentioned purpose realizes by following technical scheme:
A kind of coronary artery bracket, its composition comprises by Nitinol and reticulates circular tube structure through laser engraving, described netty circular tube structure comprises several waveform main bodys and several n shape connectors, each waveform main body is made up of along the axially-aligned of netty circular tube structure 2～4 waveform unit, each waveform unit is made up of a semicircular ring and two quadrant rings, two quadrant rings are symmetricly set on the two ends of semicircular ring, several waveform main bodys have 8～16 along the circumferential arrangement of netty circular tube structure, be symmetrical arranged with n shape connector between two circumferential adjacent semicircular ring, the circular arc top of every adjacent two semicircular ring connects a n shape connector.
Above-mentioned a kind of coronary artery bracket, the external diameter of described netty circular tube structure are φ 2mm～φ 5mm, and wall thickness is 0.1mm～0.2mm, and the length of described netty circular tube structure is 5mm～40mm.
This technical scheme has following beneficial effect:
1, coronary artery bracket of the present utility model is to form TRS by Nitinol through laser engraving, several waveform main bodys are circumferentially arranged symmetrically along support, and circumferentially connect by n shape connector, can effectively increase the radial deformation capabilities of support, not produce tangible axial retraction simultaneously, be convenient to the accurate setting after support is expanded, in the balloon expandable process, distortion is even, and easy fracture uses safety.
2, it is moderate to the utlity model has the coverage rate of Nitinol, and submissive performance is good, the characteristics that radial support power is good.
Description of drawings:
Fig. 1 is the expanded view of coronary artery bracket of the present utility model, and Fig. 2 is the structural representation of single waveform unit.
The specific embodiment:
Embodiment 1:
A kind of coronary artery bracket, see Fig. 1 and Fig. 2, its composition comprises by Nitinol and reticulates circular tube structure through laser engraving, described netty circular tube structure comprises several waveform main body 1 and several n shape connectors 2, each waveform main body 1 is made up of along the axially-aligned of netty circular tube structure 2～4 waveform unit, each waveform unit is made up of a semicircular ring 11 and two quadrant rings 12, two quadrant rings 12 are symmetricly set on the two ends of semicircular ring 11, several waveform main bodys 1 have 8～16 along the circumferential arrangement of netty circular tube structure, be symmetrical arranged with n shape connector 2 between two circumferential adjacent semicircular ring 11, the circular arc top of every adjacent two semicircular ring 11 connects a n shape connector 2.The external diameter of netty circular tube structure is φ 2mm～φ 5mm, and wall thickness is 0.1mm～0.2mm, and the length of described netty circular tube structure is 5mm～40mm.The netty circular tube structure can adopt rustless steel, Nitinol or cochrome material manufacture, and the netty circular tube body structure surface can coated medicament.
Claims (2)
1. coronary artery bracket, its composition comprises by Nitinol and reticulates circular tube structure through laser engraving, described netty circular tube structure comprises several waveform main bodys (1) and several n shape connectors (2), it is characterized in that: each waveform main body (1) is made up of along the axially-aligned of netty circular tube structure 2～4 waveform unit, each waveform unit is made up of a semicircular ring (11) and two quadrant rings (12), two quadrant rings (12) are symmetricly set on the two ends of semicircular ring (11), several waveform main bodys (1) have 8～16 along the circumferential arrangement of netty circular tube structure, be symmetrical arranged with n shape connector (2) between circumferential adjacent two semicircular ring (11), the circular arc top of every adjacent two semicircular ring (11) connects a n shape connector (2).
2. a kind of coronary artery bracket according to claim 1, it is characterized in that: the external diameter of described netty circular tube structure is φ 2mm～φ 5mm, and wall thickness is 0.1mm～0.2mm, and the length of described netty circular tube structure is 5mm～40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220705127 CN203029427U (en) | 2012-12-07 | 2012-12-07 | Coronary stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220705127 CN203029427U (en) | 2012-12-07 | 2012-12-07 | Coronary stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203029427U true CN203029427U (en) | 2013-07-03 |
Family
ID=48681576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220705127 Expired - Fee Related CN203029427U (en) | 2012-12-07 | 2012-12-07 | Coronary stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203029427U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105902331A (en) * | 2016-04-08 | 2016-08-31 | 南京永明医疗器械有限公司 | Intravascular stent and preparation method thereof |
| CN106691647A (en) * | 2015-07-20 | 2017-05-24 | 上海交通大学 | Biodegradable metal intravascular stent and application thereof |
| CN107872968A (en) * | 2015-06-03 | 2018-04-03 | 安德拉泰克股份有限公司 | Support |
| CN108852571A (en) * | 2018-07-13 | 2018-11-23 | 四川兴泰普乐医疗科技有限公司 | A kind of self-expansion type biodegradable polymer stent and preparation method thereof |
-
2012
- 2012-12-07 CN CN 201220705127 patent/CN203029427U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872968A (en) * | 2015-06-03 | 2018-04-03 | 安德拉泰克股份有限公司 | Support |
| CN107872968B (en) * | 2015-06-03 | 2021-04-30 | 安德拉泰克股份有限公司 | Support frame |
| CN106691647A (en) * | 2015-07-20 | 2017-05-24 | 上海交通大学 | Biodegradable metal intravascular stent and application thereof |
| CN106691647B (en) * | 2015-07-20 | 2019-05-24 | 上海交通大学 | A kind of biodegradable metals intravascular stent and its application |
| CN105902331A (en) * | 2016-04-08 | 2016-08-31 | 南京永明医疗器械有限公司 | Intravascular stent and preparation method thereof |
| CN108852571A (en) * | 2018-07-13 | 2018-11-23 | 四川兴泰普乐医疗科技有限公司 | A kind of self-expansion type biodegradable polymer stent and preparation method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20131207 |