CN201168079Y - Blood vessel support - Google Patents
Blood vessel support Download PDFInfo
- Publication number
- CN201168079Y CN201168079Y CNU2007200772746U CN200720077274U CN201168079Y CN 201168079 Y CN201168079 Y CN 201168079Y CN U2007200772746 U CNU2007200772746 U CN U2007200772746U CN 200720077274 U CN200720077274 U CN 200720077274U CN 201168079 Y CN201168079 Y CN 201168079Y
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- intravascular stent
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- elementary cell
- net
- prismatic
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Abstract
The utility model provides a vascular stent, the stent is formed by carving an elastic metal pipe and comprises a plurality of net rings which are composed of axially arranged diamond basic units, the adjacent net rings are connected by a plurality of Y-shaped connection parts, and the surface of the vascular stent is evenly coated with a drug coating layer which can prevent the vascular restenosis. The vascular stent of the utility model can not only maintain the higher radial support force after the dilation, but can also have great axial flexibility, great vascular compliance, very small axial shortening rate and appropriate metal surface coverage fraction; at the same time, the vascular stent with the drug coating layer can effectively reduce the incidence of the vascular restenosis and reduce the occurrence of complications of a patient, after the implantation of the vascular stent.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly a kind of intravascular stent that is applicable in the human vas interventional therapy field.
Background technology
Puncture shaping surgery, be called for short the PTA art, be under the guiding of medical imaging device, utilize puncture needle, seal wire and guiding sheath that the foley's tube of the support that is with deflation is injected human vas, and be transported to the angiostenosis place, expansion with sacculus, support is also strutted, and after sacculus shrank back and removes, the metal rack that produces plastic deformation was then stayed the original place, and embedded blood vessel, play the effect of blood vessel dilating.The method makes that the long-term efficacy of operation is good.
Angle from clinical use, a kind of ideal intravascular stent design will have following technical specification simultaneously: enough radial support power, good axial compliance, little radially bounce-back than and axial LVFS, the metal space occupied area of moderate (10%-20%) compares etc.Because the conditioning each other property of these technical specifications in the supporting structure design makes existing support Design be difficult to reach in these areas effective unification.
The intravascular stent form of prior art has multiple, and they have their own characteristics each, and its purpose all is to improve the radial support intensity of support and axial function such as flexibility.But existing support is difficult to reach effective unification because of its structural limitation aspect these two, though some support expansion back support force is stronger, axially flexibility is not good enough, and metal surface coverage rate and axial LVFS are bigger; Though some support is better softness axially, radial support power deficiency, the metal surface coverage rate is less, causes vascular restenosis easily, so still remain further to be improved.
Summary of the invention
The purpose of this utility model is to provide a kind of and can keeps higher radial support power that axially compliance and vascular compliance, the axial intravascular stent that LVFS is very little, the metal surface coverage rate is moderate are arranged again well after expansion.
The purpose of this utility model is achieved through the following technical solutions: a kind of intravascular stent, engrave by elastic metallic tubing and to form, described support comprises a plurality of net rings of arranging vertically of being made up of the prismatic elementary cell, link to each other by a plurality of Y shape connectors between each adjacent net ring, the surface of described intravascular stent evenly is coated with the medication coat that one deck can prevent vascular restenosis.
Above-mentioned intravascular stent, wherein, each prismatic elementary cell of described composition net ring is along short diagonal direction polyphone, between described net ring and the net ring according to the staggered corresponding form arrangement of prismatic elementary cell.
Above-mentioned intravascular stent, wherein, described Y shape connector is connected between three adjacent prismatic elementary cells of two adjacent net rings, be on two corner angle of two summits of the Y shape connector two adjacent ribs shape elementary cells that are connected a net ring, the end point of Y shape connector is connected on the corner angle of prismatic elementary cell of adjacent net ring.
Above-mentioned intravascular stent, wherein, described radially positive and negative being staggered of a plurality of Y shape connectors that is connected between the same two adjacent net rings, and the corner angle of each the prismatic elementary cell between the two adjacent net rings all have Y shape connector to link to each other.
Above-mentioned intravascular stent, wherein, the long-diagonal of described prismatic elementary cell and the length ratio of short diagonal are 2: 1, the distance between the two adjacent net rings is suitable with the length of short diagonal.
Above-mentioned intravascular stent, wherein, the V-shaped part, top of described Y shape connector is deformed into semicircular arc.
Above-mentioned intravascular stent, wherein, the prismatic elementary cell of described composition net ring is 6 or 8.
Above-mentioned intravascular stent, wherein, the composition of described medication coat comprises Organic substance carrier, additive, medicine.
This utility model intravascular stent makes support can keep higher radial support power after expansion owing to adopted above technical scheme, and axially compliance and vascular compliance are arranged again well, and axially LVFS is very little, and the metal surface coverage rate is moderate.Each ingredient of entire bracket symmetrically, reduced the support each several part and in expansion process, counterrotating probability has axially taken place around support, simultaneously, the intravascular stent of band medication coat can reduce the incidence rate of vascular restenosis effectively, and reduces the generation of the complication of patient behind the implantable intravascular support.
Description of drawings
Fig. 1 is that the structure of this utility model intravascular stent is launched sketch map.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
See also Fig. 1, there is shown intravascular stent of the present utility model, engrave by elastic metallic tubing and to form, this support comprises a plurality of net rings of arranging vertically 1, each net ring 1 all is made up of along short diagonal direction polyphone a plurality of prismatic elementary cells 11, and the long-diagonal of each prismatic elementary cell 11 and the length ratio of short diagonal are 2: 1.Net ring and net the form arrangement that interlocks corresponding according to each prismatic elementary cell between the ring, and the distance between the two adjacent net rings 1 is suitable with the length of the short diagonal of prismatic elementary cell 11.Link to each other by a plurality of Y shape connectors 2 between each adjacent net ring 1, the V-shaped part, top of Y shape connector 2 is deformed into semicircular arc, each Y shape connector 2 is connected between three adjacent prismatic elementary cells 11 of two adjacent net rings 1, be on two corner angle of two summits 21,22 of the Y shape connector two adjacent ribs shape elementary cells 11 that are connected a net ring, the end point 23 of Y shape connector is connected on the corner angle of prismatic elementary cell of adjacent net ring.Be connected a plurality of Y shape connectors 2 radially positive and negative being staggered between the same two adjacent net rings, and the corner angle of each the prismatic elementary cell between the two adjacent net rings there is all Y shape connector to link to each other.
The prismatic elementary cell of forming the net ring in the intravascular stent of the present utility model can be 6 or 8, adapts to the blood vessel that varies in size respectively; The number of forming the net ring of support can be 6-10, and concrete net number of rings determines as required.
The surface of intravascular stent of the present utility model evenly is coated with the medication coat that one deck can prevent vascular restenosis, and the composition of medication coat comprises Organic substance carrier, additive, medicine, the existing public technology of this medication coat.
Below embodiment has been described in detail this utility model in conjunction with the accompanying drawings, and those skilled in the art can make the many variations example to this utility model according to the above description.Thereby some details among the embodiment should not constitute qualification of the present utility model, and the scope that this utility model will define with appended claims is as protection domain of the present utility model.
Claims (7)
1, a kind of intravascular stent, engrave by elastic metallic tubing and to form, it is characterized in that: described support comprises a plurality of net rings of arranging vertically of being made up of the prismatic elementary cell, link to each other by a plurality of Y shape connectors between each adjacent net ring, the surface of described intravascular stent evenly is coated with the medication coat that one deck can prevent vascular restenosis.
2, intravascular stent according to claim 1 is characterized in that: each prismatic elementary cell of described composition net ring is along short diagonal direction polyphone, between described net ring and the net ring according to the staggered corresponding form arrangement of prismatic elementary cell.
3, intravascular stent according to claim 1, it is characterized in that: described Y shape connector is connected between three adjacent prismatic elementary cells of two adjacent net rings, be on two corner angle of two summits of the Y shape connector two adjacent ribs shape elementary cells that are connected a net ring, the end point of Y shape connector is connected on the corner angle of prismatic elementary cell of adjacent net ring.
4, intravascular stent according to claim 1, it is characterized in that: described radially positive and negative being staggered of a plurality of Y shape connectors that is connected between the same two adjacent net rings, and the corner angle of each the prismatic elementary cell between the two adjacent net rings all have Y shape connector to link to each other.
5, intravascular stent according to claim 1 is characterized in that: the long-diagonal of described prismatic elementary cell and the length ratio of short diagonal are 2: 1, and the distance between the two adjacent net rings is suitable with the length of short diagonal.
6, intravascular stent according to claim 1 is characterized in that: the V-shaped part, top of described Y shape connector is deformed into semicircular arc.
7, intravascular stent according to claim 1 is characterized in that: the prismatic elementary cell of described composition net ring is 6 or 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200772746U CN201168079Y (en) | 2007-12-26 | 2007-12-26 | Blood vessel support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200772746U CN201168079Y (en) | 2007-12-26 | 2007-12-26 | Blood vessel support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201168079Y true CN201168079Y (en) | 2008-12-24 |
Family
ID=40207128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200772746U Expired - Fee Related CN201168079Y (en) | 2007-12-26 | 2007-12-26 | Blood vessel support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201168079Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104127269A (en) * | 2014-06-16 | 2014-11-05 | 苏州固基电子科技有限公司 | Vascular stent |
| CN107028682A (en) * | 2017-06-08 | 2017-08-11 | 有研医疗器械（北京）有限公司 | A kind of film-coated vascular support of the submissive type of high intensity |
| CN112402079A (en) * | 2020-11-10 | 2021-02-26 | 北京永益润成科技有限公司 | Peripheral blood vessel stent |
-
2007
- 2007-12-26 CN CNU2007200772746U patent/CN201168079Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104127269A (en) * | 2014-06-16 | 2014-11-05 | 苏州固基电子科技有限公司 | Vascular stent |
| CN104127269B (en) * | 2014-06-16 | 2017-01-18 | 苏州固基电子科技有限公司 | Vascular stent |
| CN107028682A (en) * | 2017-06-08 | 2017-08-11 | 有研医疗器械（北京）有限公司 | A kind of film-coated vascular support of the submissive type of high intensity |
| CN107028682B (en) * | 2017-06-08 | 2019-05-24 | 有研医疗器械（北京）有限公司 | A kind of film-coated vascular bracket of the submissive type of high intensity |
| CN112402079A (en) * | 2020-11-10 | 2021-02-26 | 北京永益润成科技有限公司 | Peripheral blood vessel stent |
| CN112402079B (en) * | 2020-11-10 | 2024-04-19 | 北京永益润成科技有限公司 | Support for peripheral blood vessel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI KINDLY ENTERPRISE DEVELOPMENT GROUP CO., Free format text: FORMER NAME: SHANGHAI KANGDELAI ENTERPRISE DEVELOPMENT GROUP CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 201803, Shanghai, Jiading District high tide Road, No. 1, building 658, 2 Patentee after: Shanghai Kindly Enterprise Development Group Co., Ltd. Address before: 201803 Shanghai city Jiading District Huajiang Road 668 Lane 18 Patentee before: Shanghai Kangdelai Enterprise Development Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20151226 |
|
| EXPY | Termination of patent right or utility model |