CN104287871A - Aortic dissection aneurysm covered stent - Google Patents
Aortic dissection aneurysm covered stent Download PDFInfo
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- CN104287871A CN104287871A CN201410575720.0A CN201410575720A CN104287871A CN 104287871 A CN104287871 A CN 104287871A CN 201410575720 A CN201410575720 A CN 201410575720A CN 104287871 A CN104287871 A CN 104287871A
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- overlay film
- bulging
- film part
- aorta
- dissecting aneurysm
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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, particularly 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 complex structure of dissecting aneurysm of aorta is various, the method of current clinical multiselect interventional therapy, overlay film frame is the main apparatus of interventional therapy, is implanted to diseased region by induction system, by true and false for dissecting aneurysm chamber being completely cut off the mode of shunting, recover the complete blood supply in true chamber, organized thrombus gradually in false chamber, thus greatly reduce the risk of breaking in false chamber, reach therapeutic purposes.After the first cut of dissection of aorta is completely cut off completely, the thrombus organization of false intracavity will complete in recovery process after the treatment gradually, but because dissecting aneurysm of aorta pathologic structure is complicated, often have multiple cuts of more than 2, and far-end cut usually closes on important branch tremulous pulse, cause carrying out Occlusion therapy, mostly conservative process.After the main cut shutoff in upper end has completely cut off, false intracavity has still had blood flow, caused by the reflux being far-end cut, because false intracavity blood stream pressure still exists, has had a strong impact on the formation of false intracavity organized thrombus.Because false intracavity thrombus organization is another therapeutic purposes after using overlay film frame to completely cut off dissecting aneurysm of aorta shutoff, present overlay film frame design Main Function is all completely cut off on the cut of false chamber in shutoff, does not initiatively help false intracavity to form the effect of organized thrombus.
Summary of the invention
In view of this, main purpose of the present invention is, a kind of dissecting aneurysm of aorta overlay film frame is provided, the existing shutoff of this support completely cuts off the effect of false chamber cut, again can by initiatively reducing the effect of false cavity space, change blood flow rate and the flow of false intracavity, guarantee that false intracavity can form thrombosis fast within the expected time.
For achieving the above object, the present invention proposes a kind of dissecting aneurysm of aorta overlay film frame, comprise cylindrical metal support section and be coated on the tubular overlay film part on described cylindrical metal support section, wherein, bulging overlay film part is coated with, the mid portion bulging laterally of described bulging overlay film part in the outside of described tubular overlay film part.
Adopt said structure, both shutoff can completely cut off false chamber cut, by initiatively reducing false cavity space, blood flow rate and the flow of false intracavity can be changed, guarantee that false intracavity can form thrombosis fast within the expected time again.
Preferably, described bulging overlay film part by bulging metal support sub-support, the mid portion bulging laterally of described bulging metal supporting section, corresponding with described bulging overlay film part.
Preferably, described bulging metal supporting section is made up of multiple W shape becket.
Preferably, the cross section of the bulging part of described bulging overlay film part is annular, the maximum gauge 30%-60% larger than the diameter at the two ends of described bulging overlay film part of this cross section.
In addition, the two ends of described bulging overlay film part (3) are connected with the two ends of described tubular overlay film part (2).
The two ends of described bulging overlay film part (3) are closely coated on the outside of described tubular overlay film part (2), and the length at these two ends is all more than 2 centimetres.
Described tubular overlay film part (2) is straight cylinder shape structure.
Described tubular overlay film part (2) is truncated cone structure.
Protruding at the two ends of described dissecting aneurysm of aorta overlay film frame have bare bracket (5).
Preferably, described cylindrical metal support section is made up of multiple W shape becket.
Dissecting aneurysm of aorta overlay film frame energy of the present invention shutoff completely cuts off false chamber cut, and initiatively reduce false cavity space, change blood flow rate and the flow of false intracavity, guarantee that false chamber forms thrombosis fast within the expected time, and bulging part laterally impacts the displacement and slip produced due to blood flow after can effectively preventing stenter to implant human body, the palindromia avoiding the displacement because of support to expose former tremulous pulse cut producing.
Accompanying drawing explanation
Fig. 1 is the explanation schematic diagram of an embodiment of the dissecting aneurysm of aorta overlay film frame that the present invention relates to;
Fig. 2 is the explanation schematic diagram of another embodiment of the dissecting aneurysm of aorta overlay film frame that the present invention relates to;
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 schematic diagram dissecting aneurysm of aorta overlay film frame that the present invention relates to being installed on the structure of dissecting aneurysm of aorta.
Detailed description of the invention
Referring to Fig. 1 ~ Fig. 4, the detailed description of the invention of dissecting aneurysm of aorta overlay film frame of the present invention is described in detail.
Dissecting aneurysm of aorta overlay film frame comprises cylindrical metal support section (not shown) and is coated on the tubular overlay film part 2 on cylindrical metal support section.Tubular described herein comprises cylindrical shape (Fig. 1) and truncated cone (Fig. 2) iso-cross-section 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 flush with the two ends of tubular overlay film part 2, not protruding, namely do not form bare bracket 5 (Fig. 2).Cylindrical metal support section is made up of multiple W shape becket, or is braided structure.
Bulging overlay film part 3 is coated with, the mid portion bulging laterally of bulging overlay film part 3 in the outside of tubular overlay film part 2.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 described tubular overlay film part 2, and the length at these two ends is all more than 2 centimetres.That is, overlay film frame distal ports will retain more than at least 2 centimetres for Conventional coverlay film supporting structure.
Bulging overlay film part 3 is supported by bulging metal supporting section 1, and bulging overlay film part 3 is consistent with the shape of bulging metal supporting section 1, that is, the mid portion of bulging metal supporting section 1 also bulging laterally, corresponding with described bulging overlay film part 3.
Bulging metal supporting section 1 is made up of multiple letter w shape becket 4, the diameter of becket 4 is not etc., form the shape consistent with bulging overlay film part 3, namely, mid portion is bulging laterally, two end portions is closely coated on the outside of tubular overlay film part 2, and the length of two end portions is all more than 2 centimetres.Bulging section diameter is greater than overlay film frame end (peristome) diameter 30%, is no more than overlay film frame end (peristome) diameter 60%.
The two ends of bulging metal supporting section 1 flush with the two ends of bulging overlay film part 3, and certainly, the two ends of bulging metal supporting section 1 also can be protruding from the two ends of bulging overlay film part 3, form bare bracket 5.
The bulging part (mid portion) of bulging overlay film part 3, from the middle bulging gradually of two side direction, forms arc-shaped projection.The cross section of bulging overlay film part 3 is annular, maximum gauge (being roughly positioned at the centre position of the axis of the bulging overlay film part 3) 30%-60% larger than the diameter at the two ends of bulging overlay film part 3 of the cross section of its bulging part.That is, design a bulging part in distance overlay film frame end (peristome) 2 centimeters, bulging section diameter than the diameter large at least 30% of overlay film frame end, but is no more than 60% of the diameter of overlay film frame end.Bulging partial-length is less than overlay film frame total length, only in the bulging of overlay film frame interlude.
Tubular overlay film part 2 and bulging overlay film part 3 form slim blood vessel, are made up of medical macromolecular materials, as polyester woven thing, politef, polyamide yarn fabric, polypropylene spun fabric.Metal supporting section 1 is medical alloy, as niti-shaped memorial alloy, NiTi superelastic alloy, cobalt chromium dynamax, 316L medical stainless steel alloy etc.
Below for Thoracic Aortic Dissection overlay film frame, the service condition of the dissecting aneurysm of aorta overlay film frame that the present invention relates to is described.
As shown in Figure 3-4, dissecting aneurysm of aorta near-end tumor neck 6 diameter 30mm, long 50mm, far-end tumor neck 7 diameter 25mm, long 40mm, tumor body 8 diameter 60, long 50mm.Select proximal diameter 30mm, long 35mm, the long 35mm of distal diameter 25, bulging overlay film diameter 48mm, the overlay film frame of long 50mm.Under the help of induction system, stent inserting appropriate location is then carried out the release of support, by completely isolated for false chamber cut, and reduce false cavity space, and be effectively stuck in aneurysm by bulging structure of film, prevent displacement and the slip of support.
Compared with prior art, this invention advantage is: the dissecting aneurysm of aorta overlay film frame that the present invention relates to has bulging structure of film, can initiatively reduce false cavity space, change blood flow rate and the flow of false intracavity, guarantee that false chamber forms thrombosis fast within the expected time, and because blood flow impacts the displacement and slip produced after bulging structure can prevent stenter to implant human body effectively, the palindromia avoiding the displacement because of support to expose former tremulous pulse cut producing.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a dissecting aneurysm of aorta overlay film frame, comprise cylindrical metal support section and be coated on the tubular overlay film part (2) on described cylindrical metal support section, it is characterized in that, bulging overlay film part (3) is coated with, the mid portion bulging laterally of described bulging overlay film part (3) in the outside of described tubular overlay film part (2).
2. dissecting aneurysm of aorta overlay film frame according to claim 1, it is characterized in that, described bulging overlay film part (3) is supported by bulging metal supporting section (1), the mid portion bulging laterally of described bulging metal supporting section (1), corresponding with described bulging overlay film part (3).
3. dissecting aneurysm of aorta overlay film frame according to claim 1, is characterized in that, described bulging metal supporting section (1) is made up of multiple W shape becket (4).
4. dissecting aneurysm of aorta overlay film frame according to claim 1, it is characterized in that, the cross section of the bulging part of described bulging overlay film part (3) is annular, the maximum gauge 30%-60% larger than the diameter at the two ends of described bulging overlay film part (3) of this cross section.
5. dissecting aneurysm of aorta overlay film frame according to claim 1, is characterized in that, the two ends of described bulging overlay film part (3) are connected with the two ends of described tubular overlay film part (2).
6. dissecting aneurysm of aorta overlay film frame according to claim 1, it is characterized in that, the two ends of described bulging overlay film part (3) are closely coated on the outside of described tubular overlay film part (2), and the length at these two ends is all more than 2 centimetres.
7. dissecting aneurysm of aorta overlay film frame according to claim 1, is characterized in that, described tubular overlay film part (2) is straight cylinder shape structure.
8. dissecting aneurysm of aorta overlay film frame according to claim 1, is characterized in that, described tubular overlay film part (2) is truncated cone structure.
9. dissecting aneurysm of aorta overlay film frame according to claim 1, is characterized in that, protruding at the two ends of described dissecting aneurysm of aorta overlay film frame have bare bracket (5).
10. dissecting aneurysm of aorta overlay film frame according to claim 1, is characterized in that, described cylindrical metal support section is made up of multiple W shape becket.
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 |
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| CN104287871A true CN104287871A (en) | 2015-01-21 |
| CN104287871B CN104287871B (en) | 2017-03-22 |
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| CN201410575720.0A Active CN104287871B (en) | 2014-10-24 | 2014-10-24 | Aortic dissection aneurysm covered stent |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105997298A (en) * | 2016-06-28 | 2016-10-12 | 黄连军 | Aortic stent |
| CN109152639A (en) * | 2016-05-25 | 2019-01-04 | 波顿医疗公司 | Stent graft and for treating aneurysmal application method |
| CN110448396A (en) * | 2019-08-19 | 2019-11-15 | 上海市第五人民医院 | A kind of intravascular stent structure |
| CN112603591A (en) * | 2020-12-01 | 2021-04-06 | 深圳市先健畅通医疗有限公司 | Covered stent |
| US11065100B2 (en) | 2014-09-23 | 2021-07-20 | Bolton Medical, Inc. | Vascular repair devices and methods of use |
| US11154392B2 (en) | 2016-04-05 | 2021-10-26 | Bolton Medical, Inc. | Stent graft with internal tunnels and fenestrations and methods of use |
| CN113855349A (en) * | 2020-06-29 | 2021-12-31 | 深圳市先健畅通医疗有限公司 | Lumen stent |
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| US20040167605A1 (en) * | 2003-02-26 | 2004-08-26 | Elliott Christopher J. | Endoluminal device having enhanced affixation characteristics |
| CN101677867A (en) * | 2007-03-06 | 2010-03-24 | 菲诺克斯有限公司 | Implant for influencing blood flow |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11065100B2 (en) | 2014-09-23 | 2021-07-20 | Bolton Medical, Inc. | Vascular repair devices and methods of use |
| US11918451B2 (en) | 2014-09-23 | 2024-03-05 | Bolton Medical, Inc. | Vascular repair devices and methods of use |
| US11154392B2 (en) | 2016-04-05 | 2021-10-26 | Bolton Medical, Inc. | Stent graft with internal tunnels and fenestrations and methods of use |
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| CN113855349A (en) * | 2020-06-29 | 2021-12-31 | 深圳市先健畅通医疗有限公司 | Lumen stent |
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| CN112603591A (en) * | 2020-12-01 | 2021-04-06 | 深圳市先健畅通医疗有限公司 | Covered stent |
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