CN104287871B - Aortic dissection aneurysm covered stent - Google Patents
Aortic dissection aneurysm covered stent Download PDFInfo
- Publication number
- CN104287871B CN104287871B CN201410575720.0A CN201410575720A CN104287871B CN 104287871 B CN104287871 B CN 104287871B CN 201410575720 A CN201410575720 A CN 201410575720A CN 104287871 B CN104287871 B CN 104287871B
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- CN
- China
- Prior art keywords
- overlay film
- bulging
- aorta
- film part
- film frame
- 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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Links
- 206010002895 aortic dissection Diseases 0.000 title claims abstract description 32
- 206010002329 Aneurysm Diseases 0.000 title claims abstract description 5
- 208000002251 Dissecting Aneurysm Diseases 0.000 title abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 25
- 239000010408 film Substances 0.000 claims description 92
- 210000000709 aorta Anatomy 0.000 claims description 3
- 238000002224 dissection Methods 0.000 claims description 3
- 239000013039 cover film Substances 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 208000007536 Thrombosis Diseases 0.000 abstract description 10
- 230000017531 blood circulation Effects 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 201000010099 disease Diseases 0.000 abstract 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 abstract 1
- 238000002955 isolation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 210000001367 artery Anatomy 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001000 nickel titanium Inorganic materials 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 229910000684 Cobalt-chrome Inorganic materials 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- WAIPAZQMEIHHTJ-UHFFFAOYSA-N [Cr].[Co] Chemical compound [Cr].[Co] WAIPAZQMEIHHTJ-UHFFFAOYSA-N 0.000 description 1
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- BJDCWCLMFKKGEE-CMDXXVQNSA-N chembl252518 Chemical compound C([C@@](OO1)(C)O2)C[C@H]3[C@H](C)CC[C@@H]4[C@@]31[C@@H]2O[C@H](O)[C@@H]4C BJDCWCLMFKKGEE-CMDXXVQNSA-N 0.000 description 1
- 239000010952 cobalt-chrome Substances 0.000 description 1
- 239000012787 coverlay film Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Landscapes
- Prostheses (AREA)
Abstract
The invention provides an aortic dissection aneurysm covered stent which comprises a cylindrical metal supporting portion and a cylindrical covered portion coated on the cylindrical metal supporting portion. A bulging covered portion is coated outside the cylindrical covered portion, and the middle portion of the bulging covered portion bulges outwards. By adopting the above structure, a false lumen crevasse can be sealed and isolated, space of a false lumen can be actively reduced, blood flow speed and blood flow in the false lumen can be changed, and the false lumen is ensured to quickly form thrombus within expected time; the outwards-bulging portion can effectively prevent displacement and sliding caused by blood flow impact after the stent is implanted in a human body, and disease relapse caused by exposure of an original aortic crevasse due to displacement of the stent is avoided.
Description
Technical field
The present invention relates to a kind of overlay film frame, more particularly to a kind of dissecting aneurysm of aorta overlay film frame.
Background technology
The dissecting aneurysm of aorta of China occupy the first in global incidence, the case knot of dissecting aneurysm of aorta
Structure complexity is various, many methods from PCI clinical at present, and overlay film frame is the main apparatus of PCI, by conveying
System is implanted to diseased region, by way of by the isolation shunting of dissecting aneurysm true and false chamber, recovers the complete blood supply in true chamber, false chamber
In gradually organized thrombus, so as to substantially reduce the risk of false chamber rupture, reach therapeutic purposes.In the first cut of dissection of aorta
After completely cutting off completely, the thrombus organization in false chamber gradually will be completed in recovery process after the treatment, but due to dissection of aorta
Aneurysm pathology complex structure, often has multiple cuts of more than 2, and distal end cut usually closes on important branch and moves
Arteries and veins, leads to not carry out Occlusion therapy, mostly conservative to process.After the completion of the main cut closure isolation in upper end, in false chamber still
There is blood flow, as caused by the reflux of distal end cut, as blood stream pressure is still present in false chamber, had a strong impact on machine in false chamber
The formation of thrombus.Because thrombus organization is after the completion of using overlay film frame to dissecting aneurysm of aorta closure isolation in false chamber
Another therapeutic purposes, present overlay film frame design Main Function is all on the false chamber cut of closure isolation, without actively
Help in false chamber, form the effect of organized thrombus.
The content of the invention
In view of this, present invention is primarily targeted at, there is provided a kind of dissecting aneurysm of aorta overlay film frame, the support
The effect of existing closure isolation vacation chamber cut, can reduce the effect of false cavity space, the blood flow in the false chamber of change again by active
Speed and flow, it is ensured that in false chamber, quick within the expected time can form thrombus.
For reaching above-mentioned purpose, the present invention proposes a kind of dissecting aneurysm of aorta overlay film frame, including cylindrical metal
Support section and the tubular overlay film part being coated on the cylindrical metal support section, wherein, in the tubular overlay film part
Outside be coated with bulging overlay film part, the mid portion bulging laterally of the bulging overlay film part.
Using said structure, the false chamber cut of isolation can be both blocked, false chamber can be changed by actively reducing false cavity space again
Interior VPV and flow, it is ensured that in false chamber, quick within the expected time can form thrombus.
Preferably, the bulging overlay film part is by bulging metal support sub-support, the bulging metal supporting section
Mid portion bulging laterally, it is corresponding with the bulging overlay film part.
Preferably, the bulging metal supporting section is made up of multiple W shapes beckets.
Preferably, the cross section of the bulging part of the bulging overlay film part be in annular, the maximum gauge of the cross section
30%-60% bigger than the diameter at the two ends of the bulging overlay film part.
In addition, the two ends of bulging overlay film part (3) are connected with the two ends of tubular overlay film part (2).
The two ends of bulging overlay film part (3) are closely coated on the outside of tubular overlay film part (2), the two ends
Length is more than 2 centimetres.
Described tubular overlay film part (2) are straight cylinder shape structure.
Described tubular overlay film part (2) are truncated cone structure.
There is bare bracket (5) the two ends of the dissecting aneurysm of aorta overlay film frame are protruding.
Preferably, the cylindrical metal support section is made up of multiple W shapes beckets.
The dissecting aneurysm of aorta overlay film frame of the present invention can block the false chamber cut of isolation, and actively reduce false cavity space
Between, change the VPV and flow in false chamber, it is ensured that false chamber is quick within the expected time to form thrombus, and bulge laterally
Point can be effectively prevented after stenter to implant human body due to the displacement and slip produced by blood flow impact, it is to avoid because the displacement of support it is sudden and violent
Palindromia produced by the former artery cut of dew.
Description of the drawings
Fig. 1 is the explanation schematic diagram of one embodiment of dissecting aneurysm of aorta overlay film frame according to the present invention；
Fig. 2 is the explanation schematic diagram of another embodiment of dissecting aneurysm of aorta overlay film frame according to the present invention；
Fig. 3 is the schematic diagram of the structure of the dissecting aneurysm of aorta that dissecting aneurysm of aorta overlay film frame is suitable for；
Fig. 4 is the knot for dissecting aneurysm of aorta overlay film frame according to the present invention being installed on dissecting aneurysm of aorta
The schematic diagram of structure.
Specific embodiment
Referring to specific embodiments of Fig. 1～Fig. 4 to dissecting aneurysm of aorta overlay film frame of the present invention
It is described in detail.
Dissecting aneurysm of aorta overlay film frame includes cylindrical metal support section (not shown) and is coated on cylindrical metal
Tubular overlay film part 2 on support section.Tubular described herein includes that cylindrical shape (Fig. 1) and truncated cone (Fig. 2) etc. are transversal
Face is circular structure.The two ends of cylindrical metal support section are protruding from the two ends of tubular overlay film part 2, form bare bracket
5 (Fig. 1).The two ends of cylindrical metal support section also can be flushed with the two ends of tubular overlay film part 2, not protruding, i.e. not shape
Into bare bracket 5 (Fig. 2).Cylindrical metal support section is made up of multiple W shapes beckets, or is braided structure.
Bulging overlay film part 3 is coated with the outside of tubular overlay film part 2, the mid portion of bulging overlay film part 3 is outside
Side bulging.The two ends of bulging overlay film part 3 are connected with the two ends of tubular overlay film part 2.Closely wrap at the two ends of bulging overlay film part 3
The outside of the tubular overlay film part 2 is overlayed on, the length at the two ends is more than 2 centimetres.That is, overlay film frame distal ports will retain
At least more than 2 centimetres is Conventional coverlay film supporting structure.
Bulging overlay film part 3 is supported by bulging metal supporting section 1, bulging overlay film part 3 and bulging metal supporting section 1
Shape it is consistent, i.e. the also bulging laterally of the mid portion of bulging metal supporting section 1, it is relative with the bulging overlay film part 3
Should.
Bulging metal supporting section 1 is made up of multiple letter w shape beckets 4, the diameter of becket 4, is constituted
The shape consistent with bulging overlay film part 3, i.e. mid portion bulging laterally, two end portions are closely coated on tubular overlay film portion
Divide 2 outside, the length of two end portions is more than 2 centimetres.Bulging part is straight with diameter greater than overlay film frame end (opening portion)
Footpath 30%, less than overlay film frame end (opening portion) diameter 60%.
The two ends of bulging metal supporting section 1 are flushed with the two ends of bulging overlay film part 3, certainly, bulging metal support
Point 1 two ends also can be protruding from the two ends of bulging overlay film part 3, forms bare bracket 5.
The bulging part (mid portion) of bulging overlay film part 3 forms arc-shaped projection from two lateral middle gradually bulgings.
In annular, the maximum gauge of the cross section of its bulging part (is located substantially at bulging overlay film portion for the cross section of bulging overlay film part 3
Divide the centre position of 3 axial direction) 30%-60% bigger than the diameter at the two ends of bulging overlay film part 3.That is, apart from overlay film frame
2 centimeters of end (opening portion) design a bulging part, and bulging section diameter is bigger than the diameter of overlay film frame end at least
30%, but 60% of the diameter less than overlay film frame end.Bulging partial-length is less than overlay film frame total length, only in overlay film
Support interlude bulging.
Tubular overlay film part 2 and bulging overlay film part 3 form slim blood vessel, are made up of medical macromolecular materials, such as polyester
Fiber textile, polytetrafluoroethylene (PTFE), polyamide yarn fabric, polypropylene spun fabric.Metal supporting section 1 is medical alloy, such as nickel
Titanium shape memory alloy, NiTi superelastic alloy, cobalt chromium dynamax, 316L medical stainless steel alloys etc..
Below by taking Thoracic Aortic Dissection overlay film frame as an example, to dissecting aneurysm of aorta according to the present invention
The service condition of overlay film frame is illustrated.
As shown in Figure 3-4,6 diameter 30mm of dissecting aneurysm of aorta near-end knurl neck, long 50mm, 7 diameter of distal end knurl neck
25mm, long 40mm, 8 diameter 60 of knurl body, long 50mm.Proximal diameter 30mm, long 35mm, 25 long 35mm of distal diameter, bulging is selected to cover
Film diameter 48mm, the overlay film frame of long 50mm.With the help of induction system, stent inserting appropriate location is then carried out
The release of support, false chamber cut is completely cut off completely, and reduces false cavity space, and is effectively stuck in aneurysm by bulging structure of film
It is interior, prevent the displacement and slip of support.
Compared with prior art, the invention advantage is：Dissecting aneurysm of aorta overlay film frame tool according to the present invention
There is bulging structure of film, can actively reduce false cavity space, change the VPV and flow in false chamber, it is ensured that false chamber is when expecting
Interior quick formation thrombus, and the position produced by being impacted due to blood flow after bulging structure can be effectively prevented stenter to implant human body
Move and slide, it is to avoid because the displacement of support exposes the palindromia produced by former artery cut.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (9)
1. a kind of dissecting aneurysm of aorta overlay film frame, props up with the cylindrical metal is coated on including cylindrical metal support section
Tubular overlay film part (2) on support part point, it is characterised in that be coated with bulging in the outside of tubular overlay film part (2) and cover
Film part (3), the mid portion bulging laterally of bulging overlay film part (3), bulging overlay film part (3) are by bulging gold
Category support section (1) is supported, and the mid portion bulging laterally of bulging metal supporting section (1), with the bulging overlay film
Partly (3) are corresponding,
Bulging overlay film part (3) are provided only on the interlude of whole overlay film frame.
2. dissecting aneurysm of aorta overlay film frame according to claim 1, it is characterised in that the bulging metal is supported
Partly (1) is made up of multiple W shapes becket (4).
3. dissecting aneurysm of aorta overlay film frame according to claim 1, it is characterised in that the bulging overlay film part
(3) cross section of bulging part is in annular, and the maximum gauge of the cross section is than the two ends of bulging overlay film part (3)
The big 30%-60% of diameter.
4. dissecting aneurysm of aorta overlay film frame according to claim 1, it is characterised in that the bulging overlay film part
(3) two ends are connected with the two ends of tubular overlay film part (2).
5. dissecting aneurysm of aorta overlay film frame according to claim 1, it is characterised in that the bulging overlay film part
(3) two ends are closely coated on the outside of tubular overlay film part (2), and the length at the two ends is more than 2 centimetres.
6. dissecting aneurysm of aorta overlay film frame according to claim 1, it is characterised in that the tubular overlay film part
(2) it is straight cylinder shape structure.
7. dissecting aneurysm of aorta overlay film frame according to claim 1, it is characterised in that the tubular overlay film part
(2) it is truncated cone structure.
8. dissecting aneurysm of aorta overlay film frame according to claim 1, it is characterised in that in the dissection of aorta
The two ends of aneurysm overlay film frame are protruding bare bracket (5).
9. dissecting aneurysm of aorta overlay film frame according to claim 1, it is characterised in that the cylindrical metal is supported
Part is made up of multiple W shapes beckets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410575720.0A CN104287871B (en) | 2014-10-24 | 2014-10-24 | Aortic dissection aneurysm covered stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410575720.0A CN104287871B (en) | 2014-10-24 | 2014-10-24 | Aortic dissection aneurysm covered stent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104287871A CN104287871A (en) | 2015-01-21 |
| CN104287871B true CN104287871B (en) | 2017-03-22 |
Family
ID=52308003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410575720.0A Active CN104287871B (en) | 2014-10-24 | 2014-10-24 | Aortic dissection aneurysm covered stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104287871B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3135249B1 (en) | 2011-11-11 | 2018-04-18 | Bolton Medical, Inc. | Universal endovascular grafts |
| EP3197393B1 (en) | 2014-09-23 | 2019-03-27 | Bolton Medical, Inc. | Vascular repair devices |
| EP3439583B1 (en) | 2016-04-05 | 2020-09-09 | Bolton Medical, Inc. | Stent graft with internal tunnels and fenestrations |
| CN109152639B (en) * | 2016-05-25 | 2022-03-29 | 波顿医疗公司 | Stent grafts and methods of use for treating aneurysms |
| CN105997298A (en) * | 2016-06-28 | 2016-10-12 | 黄连军 | Aortic stent |
| CN110448396B (en) * | 2019-08-19 | 2021-07-06 | 上海市第五人民医院 | Blood vessel support structure |
| CN110721007B (en) * | 2019-10-09 | 2024-08-13 | 中国人民解放军西部战区总医院 | Degradable thoracic aortic tectorial membrane support in bare area |
| CN113855349B (en) * | 2020-06-29 | 2023-11-17 | 先健科技(深圳)有限公司 | Lumen stent |
| CN112603591B (en) * | 2020-12-01 | 2022-12-02 | 深圳市先健畅通医疗有限公司 | Covered stent |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7025779B2 (en) * | 2003-02-26 | 2006-04-11 | Scimed Life Systems, Inc. | Endoluminal device having enhanced affixation characteristics |
| DE102007012964A1 (en) * | 2007-03-06 | 2008-09-11 | Phenox Gmbh | Implant for influencing blood flow |
| US8118861B2 (en) * | 2007-03-28 | 2012-02-21 | Boston Scientific Scimed, Inc. | Bifurcation stent and balloon assemblies |
| CN102824237B (en) * | 2011-06-13 | 2015-12-09 | 北京华脉泰科医疗器械有限公司 | A kind of thoracic aorta covered bracket |
| CN102379731B (en) * | 2011-08-03 | 2014-02-19 | 北京华医圣杰科技有限公司 | Aortic aneurysm dissection stent system and preparation method thereof |
| CN202859182U (en) * | 2012-09-18 | 2013-04-10 | 孙立忠 | Membrane-covered stent |
| CN202875531U (en) * | 2012-10-16 | 2013-04-17 | 高峰 | Artificial blood vessel for exclusion treatment inside aortic aneurysm cavity |
| CN204158523U (en) * | 2014-10-24 | 2015-02-18 | 黄连军 | Dissecting aneurysm of aorta overlay film frame |
-
2014
- 2014-10-24 CN CN201410575720.0A patent/CN104287871B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104287871A (en) | 2015-01-21 |
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