CN102302389A - Pipe network type stent in blood vessel - Google Patents
Pipe network type stent in blood vessel Download PDFInfo
- Publication number
- CN102302389A CN102302389A CN201110197176A CN201110197176A CN102302389A CN 102302389 A CN102302389 A CN 102302389A CN 201110197176 A CN201110197176 A CN 201110197176A CN 201110197176 A CN201110197176 A CN 201110197176A CN 102302389 A CN102302389 A CN 102302389A
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- vertical
- dissymmetrical structure
- dissymmetrical
- structure unit
- inner support
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Abstract
The invention relates to a pipe network type stent in a blood vessel, which is characterized by comprising a plurality of vertical asymmetrical structure units, wherein the vertical asymmetrical structure unit 1 is a metal ring composed of two butt jointed irregular M-shaped metal strips, the troughs of the two M-shaped metal strips are staggered, the four peaks of the two M-shaped metal strips are connection points which are respectively connected with the different asymmetrical structure units, and the plurality of vertical asymmetrical structure units are mutually connected to form a pipe type stent. The rigidity of the structure is increased by the asymmetrical structures; compared with the similar sent with same rigidity, the stent is smaller in the area coverage fraction, thinner in the wall, more flexible, and more beneficial to reducing the binary restenosis rate.
Description
Technical field
The present invention relates to the support of implantable vessel, relate 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, the present invention provides a kind of pipeline type vascular inner support of dissymmetrical structure.
For achieving the above object, the technical scheme that the present invention 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 the present invention is that the unitary corner of described vertical dissymmetrical structure is all arc, is the becket of undaform.
Second preferred version of the present invention does, vertical dissymmetrical structure unit connect through welding manner.
The 3rd preferred version of the present invention 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 the present invention 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 the present invention does; Described tubular bracket is that metal circular tube is engraved and formed.
Technical advantage of the present invention 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 the present invention 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 201110197176 CN102302389B (en) | 2011-07-14 | 2011-07-14 | Pipe network type stent in blood vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110197176 CN102302389B (en) | 2011-07-14 | 2011-07-14 | Pipe network type stent in blood vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102302389A true CN102302389A (en) | 2012-01-04 |
| CN102302389B CN102302389B (en) | 2013-10-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110197176 Expired - Fee Related CN102302389B (en) | 2011-07-14 | 2011-07-14 | Pipe network type stent in blood vessel |
Country Status (1)
| Country | Link |
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| CN (1) | CN102302389B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109124838A (en) * | 2018-08-24 | 2019-01-04 | 四川大学 | V-arrangement degradable biological frame |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5935162A (en) * | 1998-03-16 | 1999-08-10 | Medtronic, Inc. | Wire-tubular hybrid stent |
| US6908480B2 (en) * | 2001-08-29 | 2005-06-21 | Swaminathan Jayaraman | Structurally variable stents |
| CN1838927A (en) * | 2004-05-03 | 2006-09-27 | 夸利梅德创新医药产品有限公司 | Stent |
| EP2105111A1 (en) * | 2008-03-29 | 2009-09-30 | Biotronik VI Patent AG | Medical implant, in particular stent |
| US20100004735A1 (en) * | 2008-05-02 | 2010-01-07 | Arlene Sucy Yang | Polymeric Stent |
| CN201959034U (en) * | 2010-12-31 | 2011-09-07 | 微创医疗器械(上海)有限公司 | Blood vessel bracket |
| CN202263081U (en) * | 2011-07-14 | 2012-06-06 | 张海明 | Pipe network type endovascular stent |
-
2011
- 2011-07-14 CN CN 201110197176 patent/CN102302389B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5935162A (en) * | 1998-03-16 | 1999-08-10 | Medtronic, Inc. | Wire-tubular hybrid stent |
| US6908480B2 (en) * | 2001-08-29 | 2005-06-21 | Swaminathan Jayaraman | Structurally variable stents |
| CN1838927A (en) * | 2004-05-03 | 2006-09-27 | 夸利梅德创新医药产品有限公司 | Stent |
| EP2105111A1 (en) * | 2008-03-29 | 2009-09-30 | Biotronik VI Patent AG | Medical implant, in particular stent |
| US20100004735A1 (en) * | 2008-05-02 | 2010-01-07 | Arlene Sucy Yang | Polymeric Stent |
| CN201959034U (en) * | 2010-12-31 | 2011-09-07 | 微创医疗器械(上海)有限公司 | Blood vessel bracket |
| CN202263081U (en) * | 2011-07-14 | 2012-06-06 | 张海明 | Pipe network type endovascular stent |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109124838A (en) * | 2018-08-24 | 2019-01-04 | 四川大学 | V-arrangement degradable biological frame |
| CN109124838B (en) * | 2018-08-24 | 2024-01-30 | 四川大学 | V-shaped degradable biological rack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102302389B (en) | 2013-10-16 |
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Granted publication date: 20131016 Termination date: 20160714 |
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