CN202263081U - Pipe network type endovascular stent - Google Patents
Pipe network type endovascular stent Download PDFInfo
- Publication number
- CN202263081U CN202263081U CN 201120248476 CN201120248476U CN202263081U CN 202263081 U CN202263081 U CN 202263081U CN 201120248476 CN201120248476 CN 201120248476 CN 201120248476 U CN201120248476 U CN 201120248476U CN 202263081 U CN202263081 U CN 202263081U
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- CN
- China
- Prior art keywords
- vertical
- dissymmetrical structure
- dissymmetrical
- structure unit
- inner support
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- Expired - Lifetime
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Abstract
The utility model relates to a pipe network type endovascular stent, which is characterized by comprising a plurality of vertical asymmetric structure units. Each vertical asymmetric structure unit 1 is a metal ring formed by butting two irregular 'M'-shaped metal strips, wave trough positions of each two 'M'-shaped metal strips are staggered, connection points are arranged at four wave crests of each two 'M'-shaped metal strips and connected with different asymmetric structure units 1 respectively, and the vertical asymmetric structure units are mutually connected into a tubular stent. The structural rigidity of the pipe network type endovascular stent is enhanced by the aid of asymmetric structures, and compared with a similar stent with the same rigidity, the stent is smaller in area coverage rate, smaller in wall thickness, better in flexibility and beneficial to decrease of restenosis rate.
Description
Technical field
This utility model relates to the support of implantable vessel, relates in particular to a kind of pipeline type vascular inner support.
Background technology
Nowadays the both at home and abroad intravascular stent of main flow such as the Cordis cypher of Johnson & Johnson support, Medtronic Drive support, BS TAXUS Express2 Atom, Abbot stent, Terumo stent, the Mustang of Wicresoft support; General annular supports muscle and the alternatively distributed symmetrical structure of dowel, dowel coupling part or the whole curved booms of adopting.Undaform annular supports tendon exhaustion is representative.
Boston Scientific Liberte stent is the support of rare a kind of integrated design on the market.
Above-mentioned supporting structure support strength existing problems, bigger in the implantation process to the damage of human body, form " dog bone " phenomenon, restenosis rate height easily.
Above-mentioned support is under the prerequisite that guarantees enough radial support rigidity, and stent support muscle sectional dimension is bigger, and axially compliance is not good enough.In the implantation process, " " phenomenon causes damage to blood vessel to dog bone, and restenosis rate is high in formation easily.Axially the cripetura rate is big, and the position changes easily.Generally adopt 316L medical stainless steel material behind implantable intravascular, have many restenosis problems.
Summary of the invention
For addressing the above problem, this utility model provides a kind of pipeline type vascular inner support of dissymmetrical structure.
For achieving the above object, the technical scheme that this utility model adopts is: the pipeline type vascular inner support is characterized in that: comprise a plurality of vertical dissymmetrical structures unit; Described vertical dissymmetrical structure unit 1 is two beckets that the butt joint of irregular " M " shape bonding jumper forms; The bonding jumper wave trough position of two " M " shapes staggers; Four crest places of the bonding jumper of two " M " shapes are junction point, and described junction point connects different dissymmetrical structure unit 1 respectively; A plurality of vertical dissymmetrical structures unit is interconnected to form tubular bracket.
First preferred version of this utility model is that the unitary corner of described vertical dissymmetrical structure is all arc, is the becket of undaform.
Second preferred version of this utility model does, vertical dissymmetrical structure unit connect through welding manner.
The 3rd preferred version of this utility model does, the two ends of described tubular bracket are provided with a plurality of diamond-shaped element 3, and described diamond-shaped element 3 is connected with the unitary junction point of vertical dissymmetrical structure of the vacant junction point in tubular bracket end.
The 4th preferred version of this utility model does, four adjacent vertical dissymmetrical structure unit seal into a horizontal dissymmetrical structure unit 4, and described vertical dissymmetrical structure unit equates with horizontal dissymmetrical structure unit 4 areas.
The 5th preferred version of this utility model does; Described tubular bracket is that metal circular tube is engraved and formed.
The technical advantage of this utility model is: dissymmetrical structure has increased the rigidity of structure, and under the situation of similar support same stiffness, this support area coverage is littler, and wall thickness is thinner, and compliance is better, is beneficial to reduce restenosis rate.
Below in conjunction with the accompanying drawing and the specific embodiment this utility model is further specified.
Description of drawings
Fig. 1 is a present embodiment complanation sketch map.
Fig. 2 is a present embodiment dissymmetrical structure cell schematics.
Fig. 3 is the present embodiment schematic perspective view.
The specific embodiment
With reference to figure 1, Fig. 2, the pipeline type vascular inner support comprises a plurality of vertical dissymmetrical structures unit; Described vertical dissymmetrical structure unit 1 is two beckets that the butt joint of irregular " M " shape bonding jumper forms; The bonding jumper wave trough position of two " M " shapes staggers; Four crest places of the bonding jumper of two " M " shapes are junction point, and described junction point connects different dissymmetrical structure unit 1 respectively; A plurality of vertical dissymmetrical structures unit is interconnected to form tubular bracket.Four adjacent vertical dissymmetrical structure unit seal into a horizontal dissymmetrical structure unit 4, and described vertical dissymmetrical structure unit is with laterally dissymmetrical structure unit 4 areas are equal.This support integral body is dissymmetrical structure, and radial support power is strong, and cradle wall is thin, no cripetura rate.
The vertical unitary corner of dissymmetrical structure is all arc, is the becket of undaform.Arc, corrugated structure, not easy damaged inside of human body blood vessel.Better efficacy.
Vertical dissymmetrical structure unit is connected to form tubular bracket through welding manner, and described tubular bracket also can be that metal circular tube is engraved and formed.The stent expansion process of integrated design does not have " dog bone " phenomenon, has reduced in the process of expansion two ends to the damage of blood vessel; The expansion no axial cripetura in back is beneficial to the accurate release of support.
The two ends of tubular bracket are provided with a plurality of diamond-shaped element 3, and described diamond-shaped element 3 is connected with the unitary junction point of vertical dissymmetrical structure of the vacant junction point in tubular bracket end.Respectively there is N (N is the half the of the columns) diamond structure 3 that individual pore area is little than the carrier unit area at the pipeline type vascular inner support two ends of dissymmetrical structure, have strengthened the end non-deformability, effectively prevent the generation of dog bone phenomenon.
Claims (6)
1. the pipeline type vascular inner support is characterized in that: comprise a plurality of vertical dissymmetrical structures unit; Described vertical dissymmetrical structure unit (1) is two beckets that the butt joint of irregular " M " shape bonding jumper forms; The bonding jumper wave trough position of two " M " shapes staggers; Four crest places of the bonding jumper of two " M " shapes are junction point, and described junction point connects different dissymmetrical structure unit (1) respectively; A plurality of vertical dissymmetrical structures unit is interconnected to form tubular bracket.
2. pipeline type vascular inner support according to claim 1 is characterized in that: the unitary corner of described vertical dissymmetrical structure is all arc, is the becket of undaform.
3. pipeline type vascular inner support according to claim 1 is characterized in that: vertical dissymmetrical structure unit connect through welding manner.
4. pipeline type vascular inner support according to claim 1; It is characterized in that: the two ends of described tubular bracket are provided with a plurality of diamond-shaped element (3), and described diamond-shaped element (3) is connected with the unitary junction point of vertical dissymmetrical structure of the vacant junction point in tubular bracket end.
5. pipeline type vascular inner support according to claim 1; It is characterized in that: four adjacent vertical dissymmetrical structure unit; Seal into a horizontal dissymmetrical structure unit (4), described vertical dissymmetrical structure unit is with laterally dissymmetrical structure unit (4) area is equal.
6. according to the pipeline type vascular inner support of claim 1, it is characterized in that: described tubular bracket is that metal circular tube is engraved and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120248476 CN202263081U (en) | 2011-07-14 | 2011-07-14 | Pipe network type endovascular stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120248476 CN202263081U (en) | 2011-07-14 | 2011-07-14 | Pipe network type endovascular stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202263081U true CN202263081U (en) | 2012-06-06 |
Family
ID=46153893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120248476 Expired - Lifetime CN202263081U (en) | 2011-07-14 | 2011-07-14 | Pipe network type endovascular stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202263081U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102302389A (en) * | 2011-07-14 | 2012-01-04 | 张海明 | Pipe network type stent in blood vessel |
| TWI510225B (en) * | 2013-06-25 | 2015-12-01 | Univ Nat Cheng Kung | Stent |
-
2011
- 2011-07-14 CN CN 201120248476 patent/CN202263081U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102302389A (en) * | 2011-07-14 | 2012-01-04 | 张海明 | Pipe network type stent in blood vessel |
| CN102302389B (en) * | 2011-07-14 | 2013-10-16 | 张海明 | Pipe network type stent in blood vessel |
| TWI510225B (en) * | 2013-06-25 | 2015-12-01 | Univ Nat Cheng Kung | Stent |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120606 Effective date of abandoning: 20131016 |
|
| RGAV | Abandon patent right to avoid regrant |