CN102551933A - Woven stent - Google Patents
Woven stent Download PDFInfo
- Publication number
- CN102551933A CN102551933A CN2011104468411A CN201110446841A CN102551933A CN 102551933 A CN102551933 A CN 102551933A CN 2011104468411 A CN2011104468411 A CN 2011104468411A CN 201110446841 A CN201110446841 A CN 201110446841A CN 102551933 A CN102551933 A CN 102551933A
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- China
- Prior art keywords
- braided support
- support
- braided
- silk material
- per share
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- 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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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
Abstract
The invention relates to a woven stent. The woven stent is formed by weaving a plurality of wires, and is characterized in that: the wires at the end of the woven stent are divided into a plurality of strands according to the number of the wires of the woven stent, wherein all the wires in each strand of wires are fixed together. By the woven stent, the wires at the end of the woven stent can be effectively prevented from being scattered, and adherence to the wall and infusion performance of the stent are improved.
Description
Technical field
The present invention relates to blood vessel and get involved medical field, particularly, the webmaster shape support that the present invention relates to weave.
Background technology
At present, the common disease of cardiovascular and cerebrovascular vessel mainly contains stricture of artery, aneurysm etc., and these diseases are if untimely treatment may cause blood vessel blockage, tumor body to break, with the serious harm mankind's life security.
For aneurysmal treatment, early stage main surgical operation such as adopt that excision or folder close.Along with the progress in epoch, mainly adopt Wicresoft to hinder interventional procedure at present, like support shutoff or Therapeutic Method such as turn, liquid embolic.These class methods are little to patient's wound, and are safe, and therapeutic effect is good, thereby obtained significant progress technically.At present, Wicresoft hinders the used method of interventional procedure and cuts both ways, and mostly is aneurysm wall and normal blood are isolated, and changes blood flow state, thus the thrombosis of making, and expectation aneurysm mouth produces endothelialization.Wherein, the braided support of close mesh owing to its good compliance, stronger support force, good adherent property with and to branch vessel less influence receives widely and paying close attention to.
At present, for the intravascular stent that is formed by the braiding of multi-filament material, its end silk material is general not through special fixing or special structural design, thereby presents the original woven condition of dispersing uniformly.This kind support in use may produce at random, and the end that also possibly have a part silk material spins off in braiding structure and is suspended to the blood vessel, has influenced the adherent property of bracket end, can improve the probability that causes thrombosis when serious.
American documentation literature US2007/0112415A1 discloses a kind of radially self-expanding stent in the body passageway that is used to be implanted in; It comprises first and second groups of filaments; These first and second groups of filaments are woven in together and define the tubular bracket body with two ends, wherein some in filament end, place, the end of rack body or all be fixed together in pairs.
Chinese patent document CN2817765Y discloses a kind of endoluminal stent of medical NiTi alloy silk braiding of the employing spot welding of closing up; It includes support; Support is woven into the support net to form tubular by NiTi alloy silk, and the terminal head of the ending of alloy silk is folded in the support net integrally welded with twine.The terminal head of the ending of NiTi alloy silk is folded to support net inside and is connected with twine spot welding, and its spot welding spacing is 1.5mm-2mm.
Chinese patent document CN1201381A discloses a kind of self-expansion type braided stent that the displacement of human body lumen is transplanted that is used for, and it has an expanded radially form, is acute angle in the angle between filament under this form.At the two ends of convergent divergent channel, some or all filament welds together in couples, forming some beads, thereby improves the intensity of convergent divergent channel, helps it to install from a conveyer device.
Chinese patent document CN201930101U discloses a kind of intracranial falsework; Said support is the TRS that is formed by the memory alloy wire braiding; The mid portion of said support is columniform flat segments, and the two ends of said support are conical awl sections, and said awl section seamlessly transits with the joint of said flat segments; End at the memory alloy wire of said support one end is fixed on together, to form the top of conical awl section.
The end of the support in above-mentioned patent documentation is that adjacent two braided wires weld together in pairs, and perhaps all braided wires are strapped in becomes taper together, and perhaps the terminal head of the ending of alloy silk is folded to that the support net is inner to be connected with twine spot welding.Above-mentioned support can avoid end silk material that tissue is produced damage after inserting human body.But, the end weld in pairs or during the folding welding of individual thread solder joint more, the size in the time of can increasing the support compression in carrier influences the transportation performance of support.And the above-mentioned various relatively complicacy that designs and produces.And, all Nonvisualization designs of the end of above-mentioned support.
Summary of the invention
Seeing that the deficiency of the above-mentioned braided support of prior art the objective of the invention is to develop a kind of braided support, it can prevent effectively that bracket end silk material is at random, improves adherent property of support and transportation performance.
According to the present invention; A kind of braided support is provided, and this braided support is formed by the braiding of multi-filament material, it is characterized in that: according to the silk material radical of this braided support; The silk material of the end of this braided support is divided into some strands, and each the rhizoid material in the wherein per share silk material is fixed on together.
Preferably, the silk material radical in the per share silk material is identical, or different.
Preferably, the entire bracket end of said braided support is a flat, perhaps is bell mouth shape.
Preferably, in the end of this braided support, each the rhizoid material in the per share silk material is woven in together, perhaps directly is fixed on together without braiding.
Preferably, in the end of this braided support, each the rhizoid material in the per share silk material is fixed on together through direct braiding and heat treatment.
Preferably, in the end of this braided support, each the rhizoid material in the per share silk material is fixed on together through the ring that develops.
Preferably, in the end of this braided support, each the rhizoid material in the per share silk material twines in silk material end through the silk that develops and is tied up and be fixed together.
Preferably, in the end of this braided support, each the rhizoid material in the per share silk material uses biological glue to carry out plug at end part and is fixed on together.
Preferably, in the end of this braided support, each the rhizoid material in the per share silk material uses welding method and is fixed on together.
According to the present invention; The end silk material of braided support can adopt the mode of share split braiding or share split directly to handle with the mode of developing material constraint; Thereby can come to select flexibly different designs according to needs, and prevent that effectively bracket end silk material is at random, improve the adherent property of support; Per share braided wires material can select the silk material of different numbers to form as required; The constraint of end braided wires material can be selected the material that can develop for use, so that the far-end of support and near-end are visual good under X-ray, makes things convenient for doctor's operation and location.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below.It is obvious that, and the accompanying drawing in describing below only is some specific embodiments of putting down in writing among the application, and it is not the restriction to protection scope of the present invention.For those of ordinary skills, under the prerequisite of not paying creative work, can also obtain some other embodiment and accompanying drawing according to these embodiment of the present invention and accompanying drawing thereof certainly.
Figure 1A is the side view of the braided support of first embodiment of the invention.
Figure 1B is the end-view of end of the braided support of the first embodiment of the invention shown in Figure 1A.
Fig. 2 is the side view of the braided support of second embodiment of the invention.
Fig. 3 is the side view of the braided support of third embodiment of the invention.
The specific embodiment
In order to make those skilled in the art person understand the technical scheme among the application better, will combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description.Obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the described specific embodiment of the application, all other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work should drop within the concept of the present invention.
Object of study of the present invention be the braiding webmaster shape support, be braided support.The present invention relates in general to a kind of be applied to the end special construction of braided support and the design of developing.Particularly, the present invention has carried out particular design for the silk material of the end of braided support, and its end silk material is fixed by share split, and is at random to prevent bracket end silk material, improves the adherent property of support.In addition, the present invention also can install developing unit in the braided support end, to improve rack far end and the visuality of near-end under X-ray.
Below specifically describe the preferred embodiments of the present invention in detail with reference to accompanying drawing.
Figure 1A is the side view of the braided support of first embodiment of the invention.Figure 1B is the end-view of end of the braided support of the first embodiment of the invention shown in Figure 1A.As shown in the figure, braided support is made up of 24 braided wires materials.24 braided wires materials are divided into 4 strands in bracket end.Optional is that 24 braided wires materials also can be divided into 6 strands or 8 strands in bracket end.Each rhizoid material in the per share silk material is woven together respectively and after heat treatment finalizes the design and is fixed on together.The entire bracket end of said braided support is a flat.
Fig. 2 is the side view of the braided support of second embodiment of the invention.As shown in the figure, braided support is made up of 32 braided wires materials.32 braided wires materials are divided into 4 strands equably in bracket end, and per share silk material is woven together respectively.Optional is that 32 braided wires materials also can be divided into 8 strands equably in bracket end.A flat piped development ring is added in per share silk material end, and this development ring is fixed together the silk material, can also play the development effect simultaneously.The end of whole braided support is processed and is fixed to bell mouth shape, thereby can improve the adherent property of braided support end.
Fig. 3 is the side view of the braided support of third embodiment of the invention, has wherein shown that with the enlarged drawing form wherein one braided wires material is banded in state together through the silk that develops.As shown in the figure, braided support is made up of 48 braided wires materials.48 braided wires materials are divided into 4 strands equably in bracket end, and wherein per share have 12 braided wires materials, and these 12 braided wires material utilizations silk that develops is tied up respectively and is fixed together.The end of whole braided support is processed and is fixed to bell mouth shape, thereby can improve the adherent property of its end.
In sum; According to the present invention; Braided support is according to its concrete silk material radical difference of (as 24,32,48,64,72,96 or the like); That its scaffolding thread material end is divided into is some strand (as 3 strands, 4 strands, 6 strands, 8 strands or the like), and each the rhizoid material in the wherein per share silk material is fixed on together.
According to the present invention, the silk material radical in the per share silk material can be identical (be uniform distribution, as 3 one, 4 one or the like), also can be different; Whole braided support end can be flat, also can be bell mouth shape; Per share braided wires material end can be woven together respectively, perhaps directly is fixed on together without braiding.
According to the present invention, the fixed form of per share silk material end can for: through being fixed together behind direct braiding and the heat treatment; Ring is fixed together silk material end through developing; Twine in silk material end and the silk material is banded together through the silk that develops; The use biological glue carries out plug at end part and is fixed together; Perhaps use welding method to fix.
Developing, the X ray performance is not good, corrosion resistance strong, the material of good biocompatibility is processed by not passing through for the ring and the silk that develops, and this material can be the alloy of material such as gold, platinum, tantalum, osmium, rhenium, tungsten, iridium, rhodium or these materials., can make the doctor position and the form of identification support more intuitively, thereby make things convenient for the doctor to operate in the fixing of bracket end and the development under medical imaging device thereof through the develop ring or the silk that develops.
According to the present invention; The end silk material of braided support can adopt the mode of share split braiding or share split directly to handle with the mode of developing material constraint; Thereby can come to select flexibly different designs according to needs, and prevent that effectively bracket end silk material is at random, improve the adherent property of support.Per share braided wires material can select the silk material of different numbers to form as required.The constraint of end braided wires material can be selected the material that can develop for use, so that the far-end of support and near-end are visual good under X-ray, makes things convenient for doctor's operation and location.
The above only is some specific embodiment of the application.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the application's inventive principle and inventive concept, can also make some improvement and modification, these improve and modification also should be regarded as dropping within the application's the protection domain and inventive concept.
Claims (9)
1. braided support, this braided support is formed by the braiding of multi-filament material, it is characterized in that:
According to the silk material radical of this braided support, the silk material of the end of this braided support is divided into some strands, and each the rhizoid material in the wherein per share silk material is fixed on together.
2. braided support according to claim 1 is characterized in that:
Silk material radical in the per share silk material is identical, or different.
3. braided support according to claim 1 is characterized in that:
The entire bracket end of said braided support is a flat, perhaps is bell mouth shape.
4. according to each described braided support in the claim 1～3, it is characterized in that:
In the end of this braided support, each the rhizoid material in the per share silk material is woven in together, perhaps directly is fixed on together without braiding.
5. according to each described braided support in the claim 1～3, it is characterized in that:
In the end of this braided support, each the rhizoid material in the per share silk material is fixed on together through direct braiding and heat treatment.
6. according to each described braided support in the claim 1～3, it is characterized in that:
In the end of this braided support, each the rhizoid material in the per share silk material is fixed on together through the ring that develops.
7. according to each described braided support in the claim 1～3, it is characterized in that:
In the end of this braided support, each the rhizoid material in the per share silk material twines in silk material end through the silk that develops and is tied up and be fixed together.
8. according to each described braided support in the claim 1～3, it is characterized in that:
In the end of this braided support, each the rhizoid material in the per share silk material uses biological glue to carry out plug at end part and is fixed on together.
9. according to each described braided support in the claim 1～3, it is characterized in that:
In the end of this braided support, each the rhizoid material in the per share silk material uses welding method and is fixed on together.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104468411A CN102551933A (en) | 2011-12-28 | 2011-12-28 | Woven stent |
| PCT/CN2012/087799 WO2013097759A1 (en) | 2011-12-28 | 2012-12-28 | Woven stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104468411A CN102551933A (en) | 2011-12-28 | 2011-12-28 | Woven stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102551933A true CN102551933A (en) | 2012-07-11 |
Family
ID=46399424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104468411A Pending CN102551933A (en) | 2011-12-28 | 2011-12-28 | Woven stent |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102551933A (en) |
| WO (1) | WO2013097759A1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013097759A1 (en) * | 2011-12-28 | 2013-07-04 | 上海微创医疗器械（集团）有限公司 | Woven stent |
| CN103271785A (en) * | 2013-06-08 | 2013-09-04 | 周玉杰 | Tapered metal bracket |
| WO2017206155A1 (en) * | 2016-06-03 | 2017-12-07 | 浦易（上海）生物技术有限公司 | Weaving method for nasal sinus stent and stent obtained thereof |
| US20180318548A1 (en) * | 2017-05-03 | 2018-11-08 | St. Jude Medical, Cardiology Division, Inc. | Collapsible medical device having an open lumen |
| CN111118729A (en) * | 2020-01-10 | 2020-05-08 | 江苏唯德康医疗科技有限公司 | Method for weaving stent and stent manufactured by using method |
| CN111544168A (en) * | 2020-05-13 | 2020-08-18 | 东华大学 | Integrated woven covered stent edge folding process |
| CN116370008A (en) * | 2023-04-24 | 2023-07-04 | 上海励楷科技有限公司 | Multi-pitch woven support |
| CN116570409A (en) * | 2023-05-06 | 2023-08-11 | 上海励楷科技有限公司 | Double-layer spring bracket |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11547583B2 (en) * | 2016-09-09 | 2023-01-10 | Micro Medical Solutions, Inc. | Method and apparatus for treating critical limb ischemia |
| JP2022525788A (en) | 2019-03-20 | 2022-05-19 | インキュベート メディカル テクノロジーズ、 エルエルシー | Aortic dissection implant |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201381A (en) * | 1995-11-01 | 1998-12-09 | 生物相容有限公司 | Braided stent |
| JP2002272855A (en) * | 2001-03-14 | 2002-09-24 | Piolax Medical Device:Kk | Stent |
| US6652571B1 (en) * | 2000-01-31 | 2003-11-25 | Scimed Life Systems, Inc. | Braided, branched, implantable device and processes for manufacture thereof |
| US7018401B1 (en) * | 1999-02-01 | 2006-03-28 | Board Of Regents, The University Of Texas System | Woven intravascular devices and methods for making the same and apparatus for delivery of the same |
| US20070112415A1 (en) * | 1999-07-16 | 2007-05-17 | Abbott Laboratories | Braided stent |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551933A (en) * | 2011-12-28 | 2012-07-11 | 微创医疗器械(上海)有限公司 | Woven stent |
-
2011
- 2011-12-28 CN CN2011104468411A patent/CN102551933A/en active Pending
-
2012
- 2012-12-28 WO PCT/CN2012/087799 patent/WO2013097759A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1201381A (en) * | 1995-11-01 | 1998-12-09 | 生物相容有限公司 | Braided stent |
| US7018401B1 (en) * | 1999-02-01 | 2006-03-28 | Board Of Regents, The University Of Texas System | Woven intravascular devices and methods for making the same and apparatus for delivery of the same |
| US20070112415A1 (en) * | 1999-07-16 | 2007-05-17 | Abbott Laboratories | Braided stent |
| US6652571B1 (en) * | 2000-01-31 | 2003-11-25 | Scimed Life Systems, Inc. | Braided, branched, implantable device and processes for manufacture thereof |
| JP2002272855A (en) * | 2001-03-14 | 2002-09-24 | Piolax Medical Device:Kk | Stent |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013097759A1 (en) * | 2011-12-28 | 2013-07-04 | 上海微创医疗器械（集团）有限公司 | Woven stent |
| CN103271785A (en) * | 2013-06-08 | 2013-09-04 | 周玉杰 | Tapered metal bracket |
| WO2017206155A1 (en) * | 2016-06-03 | 2017-12-07 | 浦易（上海）生物技术有限公司 | Weaving method for nasal sinus stent and stent obtained thereof |
| CN108463191A (en) * | 2016-06-03 | 2018-08-28 | 浦易（上海）生物技术有限公司 | The knitting forming method and thus obtained holder of a kind of nasal sinus holder |
| CN108463191B (en) * | 2016-06-03 | 2020-03-20 | 浦易（上海）生物技术有限公司 | Weaving forming method of sinus stent and stent obtained by weaving forming method |
| US10925756B2 (en) * | 2017-05-03 | 2021-02-23 | St. Jude Medical, Cardiology Division, Inc. | Collapsible medical device having an open lumen |
| US20180318548A1 (en) * | 2017-05-03 | 2018-11-08 | St. Jude Medical, Cardiology Division, Inc. | Collapsible medical device having an open lumen |
| CN111118729A (en) * | 2020-01-10 | 2020-05-08 | 江苏唯德康医疗科技有限公司 | Method for weaving stent and stent manufactured by using method |
| CN111118729B (en) * | 2020-01-10 | 2021-06-01 | 江苏唯德康医疗科技有限公司 | Method for weaving stent and stent manufactured by using method |
| CN111544168A (en) * | 2020-05-13 | 2020-08-18 | 东华大学 | Integrated woven covered stent edge folding process |
| CN116370008A (en) * | 2023-04-24 | 2023-07-04 | 上海励楷科技有限公司 | Multi-pitch woven support |
| CN116370008B (en) * | 2023-04-24 | 2024-01-30 | 上海励楷科技有限公司 | Multi-pitch woven support |
| CN116570409A (en) * | 2023-05-06 | 2023-08-11 | 上海励楷科技有限公司 | Double-layer spring bracket |
| CN116570409B (en) * | 2023-05-06 | 2024-01-26 | 上海励楷科技有限公司 | Double-layer spring bracket |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013097759A1 (en) | 2013-07-04 |
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Address after: 201203 Shanghai City Newton Road, Pudong New Area Zhangjiang hi tech Park No. 501 Applicant after: Shanghai MicroPort Medical Equipment (Group) Co., Ltd. Address before: 201203 Shanghai City Newton Road, Pudong New Area Zhangjiang hi tech Park No. 501 Applicant before: Weichuang Medical Equipment (Shanghai) Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: WEICHUANG MEDICAL EQUIPMENT (SHANGHAI) CO., LTD. TO: SHANGHAI MICROPORT MEDICAL EQUIPMENT (GROUP) CO., LTD. |
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Application publication date: 20120711 |