CN103417317A - Intravascular stent - Google Patents
Intravascular stent Download PDFInfo
- Publication number
- CN103417317A CN103417317A CN2013103579882A CN201310357988A CN103417317A CN 103417317 A CN103417317 A CN 103417317A CN 2013103579882 A CN2013103579882 A CN 2013103579882A CN 201310357988 A CN201310357988 A CN 201310357988A CN 103417317 A CN103417317 A CN 103417317A
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- China
- Prior art keywords
- intravascular stent
- connecting rod
- support body
- annular support
- stent
- 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.)
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Abstract
The invention provides an intravascular stent. The intravascular stent comprises an annular supporting body and a connecting rod which is connected with the annular supporting rod, and is characterized in that the connecting rod is a straight connecting rod and is continuous from the left end to the right end of the intravascular stent. After the intravascular stent is expanded, higher radial supporting force can be kept, axial zero shortening is also realized, the positioning accuracy after stent implantation is favorably improved, the injury caused to the vascular wall by stent implantation is reduced, and the probability for occurrence of vascular restenosis after stent implantation is reduced.
Description
Technical field
The present invention relates to a kind of balloon expandable formula intravascular stent of puncture shaping surgery treatment angiemphraxis.Be specifically related to a kind of annular support body and be connected the straight-bar intravascular stent that rear length direction do not shorten that combines, expands, belonging to the technical field that medical apparatus and instruments is manufactured.
Background technology
Interventional therapy method based on intravascular stent, owing to having invasive and high efficiency, has become the main stream approach for the treatment of vascular stenosis.The mechanical property that the success or failure of Stent and support itself has is closely bound up.The shortening of support its axial direction when expanding can cause support to cause damage at the two ends of blood vessel wall, thereby further brings out the generation of vascular lesion position restenosis.Therefore axial shortening is a very important mechanical property of intravascular stent, and axial shortening rate commonly used means the good of this index; The axial shortening rate has reflected the variation of support expansion front and back length, and it is related to the degree of accuracy of selecting and locating of stent length.Therefore, the axial shortening performance of support plays vital effect to the success of stenting.But existing supporting structure all is difficult to avoid it axially shortening after support is expanded fully.For this reason, the present invention, from improving the angle of structure, has designed a kind of axially zero intravascular stent shortened, to overcome now standoff deficiency.
Summary of the invention
The purpose of this invention is to provide a kind of its axially zero intravascular stent shortened of realizing when intravascular stent expands, prevent from, after support from expanding, blood vessel wall is caused to damage, to improve the positioning precision after support is implanted.
The technical solution used in the present invention is: a kind of intravascular stent, comprise annular support body and the connecting rod that is connected described annular support body, and described connecting rod is the straight line connecting rod, and uninterrupted continuously to right-hand member from the left end of described intravascular stent.
In such scheme, the number of described annular support body is 4 ~ 16, and the number of described straight line connecting rod is 3 ~ 15.
In such scheme, described annular support body is the unit wave component that is Sine distribution by some, and every two adjacent annular support body are mirror symmetry arrangement.
In such scheme, the material of described intravascular stent is medical stainless steel or niti-shaped memorial alloy or cochrome.
The beneficial effect of intravascular stent of the present invention: because the length after the intravascular stent expansion is to be determined by connecting rod, the present invention program adopts continuous continual straight line connecting rod to connect annular support body, make intravascular stent can keep higher radial support power after expansion, there is again axially zero shortening, be conducive to improve the positioning precision after intravascular stent is implanted and reduce support and implant damaging to blood vessel wall, vascular restenosis odds after reducing support and implanting.
The accompanying drawing explanation
Fig. 1 is that the support network tubular construction of the embodiment of the present invention that consists of 4 annular support body and 7 straight line connecting rods launches schematic diagram.
Fig. 2 is that the support network tubular construction of the embodiment of the present invention that consists of 16 annular support body and 7 straight line connecting rods launches schematic diagram.
1. annular support body in figure, 2. straight line connecting rod, 3. unit ripple.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Sinusoidal wave form intravascular stent commonly used is comprised of 4 ~ 16 annular support body, 3 ~ 15 connecting rods substantially at present, consolidates in embodiment two kinds of specific embodiments are provided, and technical scheme of the present invention is described in more details.
Embodiment 1
The intravascular stent of the present embodiment is to be formed through laser engraving by the medical 316L stainless steel metal micro-tubes, whole intravascular stent is formed by connecting by 7 straight line connecting rods 2 by 4 annular support body 1, each annular support body 1 consists of 6 unit ripples 3 that are Sine distribution, and every two adjacent annular support body 1 are mirror symmetry arrangement.7 straight line connecting rods 2 are continual being evenly arranged in each annular support body 1 continuously from the left end of intravascular stent to right-hand member.
Embodiment 2
The intravascular stent of the present embodiment is to be formed through laser engraving by medical L605 cochrome microtubule, whole intravascular stent is formed by connecting by 7 straight line connecting rods 2 by 16 annular support body 1, each annular support body 1 consists of 6 unit ripples 3 that are Sine distribution, and every two adjacent annular support body 1 are mirror symmetry arrangement.7 straight line connecting rods 2 are continual being evenly arranged in each annular support body 1 continuously from the left end of intravascular stent to right-hand member.
Length after the intravascular stent expansion is to be determined by connecting rod substantially, technical scheme of the present invention, the connecting rod connected between annular support body is the straight line connecting rod, and from the left end of support to right-hand member, uninterrupted continuously, before and after expansion, the length of connecting rod remains unchanged like this, so can guarantee that support axially can not shorten afterwards in expansion.
Claims (4)
1. an intravascular stent, comprise annular support body and the connecting rod that is connected described annular support body, it is characterized in that, described connecting rod is the straight line connecting rod, and uninterrupted continuously to right-hand member from the left end of described intravascular stent.
2. a kind of intravascular stent according to claim 1, is characterized in that, the number of described annular support body is 4 ~ 16, and the number of described straight line connecting rod is 3 ~ 15.
3. a kind of intravascular stent according to claim 1, is characterized in that, described annular support body is the unit wave component that is Sine distribution by some, and every two adjacent annular support body are mirror symmetry arrangement.
4. a kind of intravascular stent according to claim 1, is characterized in that, the material of described intravascular stent is medical stainless steel or niti-shaped memorial alloy or cochrome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103579882A CN103417317A (en) | 2013-08-16 | 2013-08-16 | Intravascular stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103579882A CN103417317A (en) | 2013-08-16 | 2013-08-16 | Intravascular stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103417317A true CN103417317A (en) | 2013-12-04 |
Family
ID=49643071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103579882A Pending CN103417317A (en) | 2013-08-16 | 2013-08-16 | Intravascular stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103417317A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110063824A (en) * | 2019-06-10 | 2019-07-30 | 郑州美港高科生物科技有限公司 | A kind of vertebral artery stent |
| CN113908403A (en) * | 2021-12-15 | 2022-01-11 | 艾柯医疗器械(北京)有限公司 | Intracranial catheter |
| WO2022048154A1 (en) * | 2020-09-04 | 2022-03-10 | 上海纽脉医疗科技有限公司 | Interventional valve stent and aortic valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5496365A (en) * | 1992-07-02 | 1996-03-05 | Sgro; Jean-Claude | Autoexpandable vascular endoprosthesis |
| US5853419A (en) * | 1997-03-17 | 1998-12-29 | Surface Genesis, Inc. | Stent |
| US6585757B1 (en) * | 1999-09-15 | 2003-07-01 | Advanced Cardiovascular Systems, Inc. | Endovascular stent with radiopaque spine |
| US20050038501A1 (en) * | 2003-08-12 | 2005-02-17 | Moore James E. | Dynamic stent |
| US20050165470A1 (en) * | 2004-01-22 | 2005-07-28 | Jan Weber | Medical devices |
| CN201840555U (en) * | 2010-03-10 | 2011-05-25 | 谢建 | Vessel stent being beneficial to being pressed and held |
-
2013
- 2013-08-16 CN CN2013103579882A patent/CN103417317A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5496365A (en) * | 1992-07-02 | 1996-03-05 | Sgro; Jean-Claude | Autoexpandable vascular endoprosthesis |
| US5853419A (en) * | 1997-03-17 | 1998-12-29 | Surface Genesis, Inc. | Stent |
| US6585757B1 (en) * | 1999-09-15 | 2003-07-01 | Advanced Cardiovascular Systems, Inc. | Endovascular stent with radiopaque spine |
| US20050038501A1 (en) * | 2003-08-12 | 2005-02-17 | Moore James E. | Dynamic stent |
| US20050165470A1 (en) * | 2004-01-22 | 2005-07-28 | Jan Weber | Medical devices |
| CN201840555U (en) * | 2010-03-10 | 2011-05-25 | 谢建 | Vessel stent being beneficial to being pressed and held |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110063824A (en) * | 2019-06-10 | 2019-07-30 | 郑州美港高科生物科技有限公司 | A kind of vertebral artery stent |
| WO2022048154A1 (en) * | 2020-09-04 | 2022-03-10 | 上海纽脉医疗科技有限公司 | Interventional valve stent and aortic valve |
| CN113908403A (en) * | 2021-12-15 | 2022-01-11 | 艾柯医疗器械(北京)有限公司 | Intracranial catheter |
| CN113908403B (en) * | 2021-12-15 | 2022-03-29 | 艾柯医疗器械(北京)有限公司 | Intracranial catheter |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131204 |