CN101897630A - Flexible compliance endoluminal stent - Google Patents
Flexible compliance endoluminal stent Download PDFInfo
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- CN101897630A CN101897630A CN 201010253853 CN201010253853A CN101897630A CN 101897630 A CN101897630 A CN 101897630A CN 201010253853 CN201010253853 CN 201010253853 CN 201010253853 A CN201010253853 A CN 201010253853A CN 101897630 A CN101897630 A CN 101897630A
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- uncrossed
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Abstract
The invention relates to a flexible compliance endoluminal stent which is a cylindrical or a cylinder-like tubular netted pipe structure (1). The flexible compliance endoluminal stent is characterized in that the netted pipe structure (1) comprises rhombic grid units (2) with crossed vertices and rhombic grid units (3) with uncrossed vertices, wherein the rhombic grid units (2) with crossed vertices form a rhombic netted structure by wires, and the grid units (3) with uncrossed vertices form relatively independent units by uncrossed wires among the vertices. The flexible compliance endoluminal stent has the advantages of simple and novel structure, minimally invasive operation, low risk, small pain of patients, high curative effect and less complication.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, the expanded phase that is used for that uses in especially a kind of body lumen answers tube chamber to make its unobstructed support, specifically a kind of can be with the crooked flexible compliance endoluminal stent that become song of body lumen.
Background technology
As everyone knows, the intravital tract of people can along with the development of interventional radiology and endoscopic technic, utilize implant frame that the narrow dilation therapy that carries out of body lumen is more and more used clinically because tumor etc. are former thereby cause stenosis or occlusion.This operation Wicresoft operation, risk is low, wound is little.But the support of conventional design is right cylindrical substantially at present, this right cylindrical is generally by Z type or network and surrounds, bending property is bad, the body lumen wall of can not fitting, can not comply with the shape of body lumen and bending, thereby can bring many complication such as stimulation, perforation, hypertrophy, problem such as patient's prognosis situation is bad.
Summary of the invention
It is poor to the objective of the invention is at existing support bending property, the support needs that can not adapt to crooked tract well, easily cause the problem of many complication such as stimulation, perforation, hypertrophy, design a kind of can be according to the body cavities free bend, the flexible compliance endoluminal stent that closing property of card is good.
Technical scheme of the present invention is:
A kind of flexible compliance endoluminal stent, its cylindrical or cylindrical tubular network management framework 1 of class, it is characterized in that described network management framework 1 is made up of network unit 2 and the summit Uncrossed network unit 3 that the summit intersects, the network unit 2 that the summit intersects forms rhombohedral network structure by the silk material, and a silk material does not intersect and forms relatively independent unit between the summit of the Uncrossed grid cell 3 in summit.
The Uncrossed grid cell 3 parallel symmetrical distributions in described summit, parallel asymmetric distribution, spiral type are symmetrically distributed, the asymmetric distribution of spiral type or be randomly dispersed on the network management framework 1.
The both ends shape while or an end of described network management framework 1 are horn mouth, bulb or rim of a cup structure.
The Uncrossed grid cell 3 in described summit is that size is identical or different.
The inner surface and/or the outer surface of described network management framework 1 are provided with overlay film, and covering material is medical polyurethane, silicone rubber, politef, dacron membrane or polyethylene.
Beneficial effect of the present invention:
The separate unit of a, support not chi structure makes the support compliance better, the bending of complying with body lumen;
The design of b, separate unit makes the radial support power of support bigger, can guarantee that more narrow positions is effectively expanded;
The support of c, the type has littler support cripetura rate, easier location of implantation process and operation.
D, the present invention have novelty simple in structure, Wicresoft's operation, and risk is low, patient is painful little, good effect, the advantage that complication is few has application promise in clinical practice.
E, support of the present invention are processed by the silk material of good biocompatibility, rack body is cylindrical or class is cylindrical, form by little diamond-shaped element in the middle of the support, each summit intersect and non-intersect diamond-shaped element between separate, do not intersect, can be covered the as required film of good biocompatibility of rack surface can be selected materials such as polyurethane, silicone rubber, politef for use.The two ends of support can be shapes such as rim of a cup, bulb, horn mouth according to the different distortion of implant site.This support does not interfere with one another owing to its mutual separate unit support, thereby can allow support comply with the bending of body lumen wall, the tube wall of can fitting well, be fixed in the luminal stenosis place better, the difficult displacement played expansion and supported narrow effect, simultaneously because its compliance is good, stimulation to tube wall is littler, is difficult for causing the hypertrophy of wall of the lumen mucosal tissue and forms restenosis.
F, because the particularity of body cavities shape, the summit among the present invention not cross unit can be along the parallel uniform distribution of circumference, also can be along the parallel uneven distribution of circumference; Can be evenly or uneven distribution along the circumference spiral type, the grid of cross unit can not adjusted, can also can be combination not of uniform size for the grid number of unanimity, thereby radial support power, angle of bend, the bending section that can adjust support grade, and make support more adapt to the special construction and the specific (special) requirements of implant site as much as possible.
G, the support grid mid portion of the present invention not cross-coupled network unit, summit that distributing, distribution can be determined by weaving method, can be parallel symmetrical distribution, parallel asymmetric distribution, spiral type symmetrical distribution, the asymmetric distribution of spiral type, uniform grid distribution, big or small grid combination distribution etc.
Description of drawings
Fig. 1 is one of structural representation of the present invention.
Fig. 2 is two of a structural representation of the present invention.
Fig. 3 is three of a structural representation of the present invention.
Fig. 4 be this structural representation four.
Fig. 5 is the unitary enlarged drawing of the non-intersect network in summit of support shown in Figure 1.
Fig. 6 is the unitary enlarged drawing of the non-intersect network in summit of support shown in Figure 2.
One of use sketch map when Fig. 7 is support implant into body swan-neck intracavity lesion of the present invention position.
Two of use sketch map when Fig. 8 is support implant into body swan-neck intracavity lesion of the present invention position.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
Embodiment one.
Shown in Fig. 1,2,5,7.
A kind of flexible compliance endoluminal stent, its cylindrical or cylindrical tubular network management framework 1 of class, it is characterized in that described network management framework 1 is made up of network unit 2 and the summit Uncrossed network unit 3 that the summit intersects, the network unit 2 that the summit intersects forms rhombohedral network structure by the silk material, and a silk material does not intersect and forms relatively independent unit between the summit of the Uncrossed grid cell 3 in summit.Network management framework 1 of the present invention can be made of monofilament or multifibres thread the netted cylinder that material weaving form good with the human-body biological compatibility.(as Fig. 1) formed by network unit 2 and the summit Uncrossed network unit 3 that the summit intersects in the surface of network management framework 1.
Uncrossed network unit, summit 3 can be along parallel uniform distribution of circumference (as Fig. 1) or uneven distribution (as Fig. 2), and the partial enlarged drawing of grid as shown in Figure 5.Network management framework 1(is the body supports frame) two ends can be deformed into multiple shape according to different pathological changes narrow positions, shapes such as bulb, rim of a cup, horn mouth for example, or/and outer surface overlay film as required, overlay film can be materials such as the silicone rubber of good biocompatibility, dacron membrane, poly-ammonia film, politef, polyethylene in it.
During use, doctor elder generation is with the support compression and insert stent conveying device, guide at seal wire, under the auxiliary supervision effect of X line or endoscope bracing frame 1 being delivered to the pathological changes narrow positions also discharges, support accurately is fixed on the body lumen stenosis, again recover its shape and expand to strut narrow (as Fig. 7), support can be complied with the flexural deformation of tube chamber and fit good with tube wall.
Embodiment two.
Shown in Fig. 3,4,6,8.
During use, doctor elder generation is with the support compression and insert stent conveying device, guide at seal wire, be support with network management framework 1(under the auxiliary supervision effect of X line or endoscope) deliver to the pathological changes narrow positions and discharge, support accurately is fixed on the body lumen stenosis, again recover its shape and expand to strut narrow (as Fig. 8), support can be complied with the flexural deformation of tube chamber and fit good with tube wall.
More than though some embodiments of the present invention have been described, the present invention is not limited in above description.It will be appreciated by those skilled in the art that in not breaking away from the scope of claims regulations multiple change and the correction that can make the present invention.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (5)
1. flexible compliance endoluminal stent, its cylindrical or cylindrical tubular network management framework of class (1), it is characterized in that described network management framework (1) is made up of network unit (2) and the summit Uncrossed network unit (3) that the summit intersects, the network unit (2) that the summit intersects forms rhombohedral network structure by the silk material, and a silk material does not intersect and forms relatively independent unit between the summit of the Uncrossed grid cell in summit (3).
2. support according to claim 1 is characterized in that the parallel symmetrical distribution of the Uncrossed grid cell in described summit (3), parallel asymmetric distribution, spiral type are symmetrically distributed, the asymmetric distribution of spiral type or be randomly dispersed on the network management framework (1).
3. support according to claim 1 is characterized in that the both ends shape while or an end of described network management framework (1) is horn mouth, bulb or rim of a cup structure.
4. support according to claim 1 and 2 is characterized in that the Uncrossed grid cell in described summit (3) is identical or different for size.
5. support according to claim 1 is characterized in that the inner surface and/or the outer surface of described network management framework (1) is provided with overlay film, and covering material is medical polyurethane, silicone rubber, politef, dacron membrane or polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010253853 CN101897630A (en) | 2010-08-16 | 2010-08-16 | Flexible compliance endoluminal stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010253853 CN101897630A (en) | 2010-08-16 | 2010-08-16 | Flexible compliance endoluminal stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101897630A true CN101897630A (en) | 2010-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010253853 Pending CN101897630A (en) | 2010-08-16 | 2010-08-16 | Flexible compliance endoluminal stent |
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| Country | Link |
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| CN (1) | CN101897630A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108013955A (en) * | 2016-11-04 | 2018-05-11 | 先健科技(深圳)有限公司 | Intravascular stent |
| CN109044525A (en) * | 2018-09-11 | 2018-12-21 | 南京微创医学科技股份有限公司 | A kind of seal wire connector |
| CN114948334A (en) * | 2022-04-11 | 2022-08-30 | 上海玮琅医疗科技有限公司 | Pulmonary artery tectorial membrane support |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1961847A (en) * | 2005-11-09 | 2007-05-16 | 温宁 | Artificial heart valve with scaffold and delivery apparatus thereof |
| KR20090045551A (en) * | 2007-11-02 | 2009-05-08 | (주) 태웅메디칼 | A stent |
| EP2085050A1 (en) * | 2008-01-29 | 2009-08-05 | Taewoong Medical Co., Ltd. | Biodegradable double stent |
| CN101721267A (en) * | 2008-10-16 | 2010-06-09 | 太雄医疗器株式会社 | A wavily deformable stent and making method for the same |
| CN101953728A (en) * | 2010-04-19 | 2011-01-26 | 杭州启明医疗器械有限公司 | Conveniently-implantable artificial valve replacement device and scaffold |
-
2010
- 2010-08-16 CN CN 201010253853 patent/CN101897630A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1961847A (en) * | 2005-11-09 | 2007-05-16 | 温宁 | Artificial heart valve with scaffold and delivery apparatus thereof |
| KR20090045551A (en) * | 2007-11-02 | 2009-05-08 | (주) 태웅메디칼 | A stent |
| EP2085050A1 (en) * | 2008-01-29 | 2009-08-05 | Taewoong Medical Co., Ltd. | Biodegradable double stent |
| CN101721267A (en) * | 2008-10-16 | 2010-06-09 | 太雄医疗器株式会社 | A wavily deformable stent and making method for the same |
| CN101953728A (en) * | 2010-04-19 | 2011-01-26 | 杭州启明医疗器械有限公司 | Conveniently-implantable artificial valve replacement device and scaffold |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108013955A (en) * | 2016-11-04 | 2018-05-11 | 先健科技(深圳)有限公司 | Intravascular stent |
| CN109044525A (en) * | 2018-09-11 | 2018-12-21 | 南京微创医学科技股份有限公司 | A kind of seal wire connector |
| CN109044525B (en) * | 2018-09-11 | 2024-06-04 | 南微医学科技股份有限公司 | Guide wire joint |
| CN114948334A (en) * | 2022-04-11 | 2022-08-30 | 上海玮琅医疗科技有限公司 | Pulmonary artery tectorial membrane support |
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Application publication date: 20101201 |