CN201160924Y - Blood vessel stent - Google Patents
Blood vessel stent Download PDFInfo
- Publication number
- CN201160924Y CN201160924Y CNU2007200772905U CN200720077290U CN201160924Y CN 201160924 Y CN201160924 Y CN 201160924Y CN U2007200772905 U CNU2007200772905 U CN U2007200772905U CN 200720077290 U CN200720077290 U CN 200720077290U CN 201160924 Y CN201160924 Y CN 201160924Y
- Authority
- CN
- China
- Prior art keywords
- oval
- adjacent
- intravascular stent
- bracket
- blood vessel
- 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 - Fee Related
Links
- 210000004204 blood vessel Anatomy 0.000 title abstract description 10
- 239000003814 drug Substances 0.000 claims abstract description 11
- 208000037803 restenosis Diseases 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 12
- 229940079593 drug Drugs 0.000 claims description 7
- 230000002792 vascular Effects 0.000 claims description 7
- 239000002184 metal Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 3
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 239000008280 blood Substances 0.000 abstract 1
- 210000004369 blood Anatomy 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Images
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- Media Introduction/Drainage Providing Device (AREA)
- Materials For Medical Uses (AREA)
Abstract
The utility model provides a blood vessel bracket which is enchased by elastic metal tubular product. The bracket comprises a plurality of net rings which are arranged along the axial direction and are formed by oval basic units; every two adjacent net rings are connected through a plurality of inclined S-shaped connecting pieces; the surface of the blood vessel bracket is evenly coated with a medicament coating for preventing the restenosis of the blood vessel. The blood bracket not only can keep higher radial holding power after expansion, but also has excellent axial flexibility and blood vessel adaptability, little axial shortening rate, and moderate covering rate of the metal surface. The components of the whole bracket are even and symmetrical, thereby reducing the possibility that the components of the bracket relatively rotate around the axial direction of the bracket in the expanding process, simultaneously, the blood vessel bracket with the medicament coating can effectively reducing the incidence rate of the restenosis of the blood vessel and reduce the occurrence of complication after the blood vessel bracket is embedded in the body of a patient.
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 oval elementary cell, S shape connector by a plurality of inclinations between each adjacent net ring links to each other, and 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 oval elementary cell of described composition net ring links to each other along the minor axis direction of ellipse, between described net ring and the net ring according to the staggered corresponding form arrangement of oval elementary cell.
Above-mentioned intravascular stent, wherein, described S shape connector is connected between the two adjacent oval elementary cells of two adjacent net rings, its junction point is on the projecting point of oval elementary cell, the incline direction that is connected a plurality of S shape connectors between the same two adjacent oval elementary cells is identical, and a plurality of S shape connectors that are connected between the different two adjacent net rings are staggered and the staggered change of incline direction vertically.
Above-mentioned intravascular stent, wherein, the major diameter of described oval elementary cell is 3: 2 with the ratio of minor axis.
Above-mentioned intravascular stent, wherein, the oval elementary cell of described composition net ring is 6, and the described S shape connector that is connected between the adjacent net ring is two, and two S shape connectors are disposed in an evenly spaced relation between the two adjacent net rings.
Above-mentioned intravascular stent, wherein, the oval elementary cell of described composition net ring is 6, and the described S shape connector that is connected between the adjacent net ring is 3, and 3 S shape connectors are disposed in an evenly spaced relation between the two adjacent net rings.
Above-mentioned intravascular stent, wherein, the oval elementary cell of described composition net ring is 8, and the described S shape connector that is connected between the adjacent net ring is two, and two S shape connectors are disposed in an evenly spaced relation between the two adjacent net rings.
Above-mentioned intravascular stent, wherein, the oval elementary cell of described composition net ring is 8, and the described S shape connector that is connected between the adjacent net ring is 4, and 4 S shape connectors are disposed in an evenly spaced relation between the two adjacent net rings.
Above-mentioned intravascular stent, wherein, 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 structure of the present utility model 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, engraved by elastic metallic tubing and to form, this support comprises a plurality of net rings of arranging vertically of being made up of oval elementary cell 11 1, and the S shape connector 2 by a plurality of inclinations between each adjacent net ring is continuous.The major diameter of oval elementary cell 11 is 3: 2 with the ratio of minor axis, forms each oval minor axis direction in oval elementary cell 11 edges of netting ring 1 and links to each other, and in entire bracket, nets ring and nets between the ring according to the staggered corresponding form arrangement of oval elementary cell.S shape connector 2 is connected between the two adjacent oval elementary cells 11 of two adjacent net rings 1, its junction point is on the projecting point of oval elementary cell, in entire bracket, the incline direction that is connected a plurality of S shape connectors 2 between the same two adjacent oval elementary cells is identical, and a plurality of S shape connectors 2 that are connected between the different two adjacent net rings are staggered and the staggered change of incline direction vertically.
Intravascular stent of the present utility model can be formed net ring by 6 oval elementary cells, evenly connects two or 3 S shape connectors between each adjacent net ring at interval, and two or 3 S shape connectors are disposed in an evenly spaced relation between the two adjacent net rings.Entire bracket can be connected and composed by S shape connector by 6-10 net ring, and the interior concrete net number of rings of support determines as required.
Intravascular stent of the present utility model can also be formed net ring by 8 oval elementary cells, evenly connects two or 4 S shape connectors between each adjacent net ring at interval, and two or 4 S shape connectors are disposed in an evenly spaced relation between the two adjacent net rings.Entire bracket can be connected and composed by S shape connector by 6-10 net ring, and the interior concrete net number of rings of support 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 (8)
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 oval elementary cell, S shape connector by a plurality of inclinations between each adjacent net ring links to each other, and 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 oval elementary cell of described composition net ring links to each other along the minor axis direction of ellipse, between described net ring and the net ring according to the staggered corresponding form arrangement of oval elementary cell.
3, intravascular stent according to claim 1, it is characterized in that: described S shape connector is connected between the two adjacent oval elementary cells of two adjacent net rings, its junction point is on the projecting point of oval elementary cell, the incline direction that is connected a plurality of S shape connectors between the same two adjacent oval elementary cells is identical, and a plurality of S shape connectors that are connected between the different two adjacent net rings are staggered and the staggered change of incline direction vertically.
4, intravascular stent according to claim 1 is characterized in that: the major diameter of described oval elementary cell is 3: 2 with the ratio of minor axis.
5, intravascular stent according to claim 1, it is characterized in that: the oval elementary cell of described composition net ring is 6, the described S shape connector that is connected between the adjacent net ring is two, and two S shape connectors are disposed in an evenly spaced relation between the two adjacent net rings.
6, intravascular stent according to claim 1, it is characterized in that: the oval elementary cell of described composition net ring is 6, the described S shape connector that is connected between the adjacent net ring is 3, and 3 S shape connectors are disposed in an evenly spaced relation between the two adjacent net rings.
7, intravascular stent according to claim 1, it is characterized in that: the oval elementary cell of described composition net ring is 8, the described S shape connector that is connected between the adjacent net ring is two, and two S shape connectors are disposed in an evenly spaced relation between the two adjacent net rings.
8, intravascular stent according to claim 1, it is characterized in that: the oval elementary cell of described composition net ring is 8, the described S shape connector that is connected between the adjacent net ring is 4, and 4 S shape connectors are disposed in an evenly spaced relation between the two adjacent net rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200772905U CN201160924Y (en) | 2007-12-26 | 2007-12-26 | Blood vessel stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200772905U CN201160924Y (en) | 2007-12-26 | 2007-12-26 | Blood vessel stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201160924Y true CN201160924Y (en) | 2008-12-10 |
Family
ID=40181869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200772905U Expired - Fee Related CN201160924Y (en) | 2007-12-26 | 2007-12-26 | Blood vessel stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201160924Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104127268A (en) * | 2014-06-16 | 2014-11-05 | 苏州固基电子科技有限公司 | Vascular stent firm in supporting |
| CN105769398A (en) * | 2016-03-18 | 2016-07-20 | 上海工程技术大学 | Biodegradable vascular stent based on polyhedron deformation mechanism |
| CN106667630A (en) * | 2012-05-14 | 2017-05-17 | C·R·巴德公司 | Uniformly expandable stent |
| CN108403256A (en) * | 2018-03-14 | 2018-08-17 | 华南理工大学 | The trivector expansion angiocarpy bracket and manufacturing method with memory effect based on 4D printings |
-
2007
- 2007-12-26 CN CNU2007200772905U patent/CN201160924Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106667630A (en) * | 2012-05-14 | 2017-05-17 | C·R·巴德公司 | Uniformly expandable stent |
| CN104127268A (en) * | 2014-06-16 | 2014-11-05 | 苏州固基电子科技有限公司 | Vascular stent firm in supporting |
| CN105769398A (en) * | 2016-03-18 | 2016-07-20 | 上海工程技术大学 | Biodegradable vascular stent based on polyhedron deformation mechanism |
| CN108403256A (en) * | 2018-03-14 | 2018-08-17 | 华南理工大学 | The trivector expansion angiocarpy bracket and manufacturing method with memory effect based on 4D printings |
| CN108403256B (en) * | 2018-03-14 | 2023-08-22 | 华南理工大学 | Three-dimensional vector expandable cardiovascular stent with memory effect based on 4D printing and its manufacturing method |
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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: 20081210 Termination date: 20151226 |
|
| EXPY | Termination of patent right or utility model |