CN103989539A - Partial covering film vascular stent - Google Patents
Partial covering film vascular stent Download PDFInfo
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- CN103989539A CN103989539A CN201410251137.4A CN201410251137A CN103989539A CN 103989539 A CN103989539 A CN 103989539A CN 201410251137 A CN201410251137 A CN 201410251137A CN 103989539 A CN103989539 A CN 103989539A
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- overlay film
- film
- side edge
- covering film
- bare bracket
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Abstract
The invention discloses a partial covering film vascular stent. The partial covering film vascular stent comprises a bare stent body and a covering film. The bare stent body is partially covered with the covering film, wherein the covering film accounts for 1/2 to 3/4 of the circumferential surface area the bare stent body. At least one first X-ray-impermeable marking point is arranged on the middle horizontal line of the covering film. At least two second X-ray-impermeable marking points are arranged on the left edge or the right edge or the upper edge or the lower edge of the covering film. According to the partial covering film vascular stent, the covering film is arranged on the bare stent body in a longitudinally covering mode, an X-ray-impermeable marking point is arranged in the middle of the covering film on the bare stent body, two X-ray-impermeable marking points are arranged on the edge of the covering film, so that the position of releasing the stent is determined, and it is guaranteed that an arterial aneurysm is covered with the covering film side after the stent is released and a branch blood vessel is not covered with the bare stent body.
Description
Technical field
The present invention relates to overlay film frame, relate in particular to a kind of intravascular stent of part overlay film.
Background technology
Aneurysm is a kind of common cardiovascular and cerebrovascular disease.Conventionally, aneurysm be due to arterial blood tube wall in the situation that there is disease, damage or the blood vessel wall part causing because of congenital factor become weak, bearing under blood flow impact, the arterial blood tube wall of this weakness is outwards outstanding, expansion gradually, and the cryptomere of formation as circle, semicircle, ellipse or fusiformis is expanded.Aneurysm can constantly be grown under the impact of blood flow, compressing organ or tissue around.And because blood pressure increases or other factors may cause aneurysm rupture, occur sharply hemorrhage, thereby may produce life danger.
Aneurysm can occur in the different parts of health, wherein more common a kind of be intracranial aneurysm.Intracranial aneurysm normally causes because the birth defect of cerebral artery vessel wall and cerebral arteries cavity pressure increase, is mainly in arteria basilaris crotch.
Treating aneurysmal traditional method is surgical operation.For example, for intracranial aneurysm, adopt and open cranium microsurgery.It generally takes folder to close method,, adopts special aneurysm clamp that is, and folder closes aneurysm neck, and keeps the patency of parent artery.But this method is large to patient trauma, high to doctor's operation requirements, and have sizable risk.
For fear of the existing high risk problem of surgical operation, mainly adopt at present Wicresoft to hinder intravascular Interventional Treatment method and treat aneurysm.For example, adopt support shutoff or turn, liquid embolic etc.Wherein, adopt overlay film frame treatment aneurysm effect remarkable, it can effectively and promptly completely cut off aneurysm wall and normal blood, changes the blood flow state in tumor, reduces the impact injury of blood flow to tumor wall, impels thrombosis, accelerates vascular lesion position endothelialization.The method is little to patient's wound, safe, and therapeutic effect is good.
At present, the film-coated vascular support that is used for the treatment of intracranial aneurysm is generally ret rievable steots, is that aneurysm is covered with overlay film frame, makes tumor chamber separated with tube chamber, thereby impels tumor intracavity to form the object that thrombosis reaches treatment.But when aneurysm has vessel branch around, branch vessel can be covered completely by overlay film frame, causes branch occlusion to cause the complication such as ischemia.
Existing another kind of overlay film frame two ends are bare bracket, cover the branch vessel at aneurysm two ends in the time of can avoiding implanting overlay film frame, and still, when branch vessel is positioned at aneurysm same level, this overlay film frame can not avoid stopping up branch vessel.
Summary of the invention
The object of the invention is to solve the problems of the prior art, a kind of part film-coated vascular support is provided.
Technical scheme of the present invention is: a kind of part film-coated vascular support, comprise bare bracket and overlay film, the part of described bare bracket is coated with described overlay film, described overlay film account for described bare bracket circumferential surface long-pending 1/2～3/4; On the by-level line of overlay film, be provided with at least one place the first opacity gauge point; Left side edge, right side edge, top edge or lower limb at overlay film are provided with at least two place's the second opacity gauge points.
Preferably, described the second opacity gauge point is two places, and the described by-level line of take is respectively located at left side edge or right side edge as center line symmetry.
Preferably, described two place's the second opacity gauge points are located at two intersections of left side edge and top edge, lower limb or right side edge and top edge, lower limb.
Preferably, described the second opacity gauge point is for everywhere, and take two places as one group, and two groups are located at respectively described left side edge and right side edge.
Preferably, described the second opacity gauge point is everywhere located at the intersection of left side edge, right side edge and overlay film top edge, lower limb.
Preferably, the top edge of described overlay film, lower limb overlap with top, the bottom of described bare bracket.
Preferably, the top of described bare bracket and/or bottom part are exposed.
Preferably, described overlay film circumferentially account for described bare bracket circumferential surface long-pending 1/2.
Preferably, described overlay film circumferentially account for described bare bracket circumferential surface long-pending 3/4.
Preferably, described bare bracket is Z-type support or net grid support.
Preferably, described overlay film is poly-four vinyl film.
The present invention longitudinally covers overlay film on bare bracket, in the middle of bare bracket overlay film, place's opacity gauge point is set, and two place's opacity gauge points are set at overlay film edge, in order to the position of determining that support discharges.When aneurysm same level has important blood vessels branch, rotation radiography is observed aneurysm and branch vessel relation, by x-ray perpendicular to aneurysm and vessel branch line, aneurysm and branch vessel line mid point during releasing bracket align opacity gauge point, guarantee that support discharges rear overlay film side and covers aneurysm, and bare bracket can not cover branch vessel.
Accompanying drawing explanation
Fig. 1 is the structural representation of bare bracket in the present invention;
Fig. 2 is front view of the present invention;
Fig. 3 is side view of the present invention;
Fig. 4 is the structural representation that in the present invention, bare bracket covers 3/4 overlay film;
Fig. 5 is the expanded view that in the present invention, the second opacity gauge point is positioned at overlay film left side edge;
Fig. 6 is the expanded view that the present invention's the second opacity gauge point is positioned at overlay film right side edge;
Fig. 7 is the expanded view that the present invention's the second opacity gauge point is positioned at overlay film top edge;
Fig. 8 is the expanded view that the present invention's the second opacity gauge point is positioned at overlay film lower limb;
Fig. 9 is the expanded view that the second opacity gauge point is all established at four edges of overlay film of the present invention;
Figure 10 is the schematic diagram that overlay film of the present invention is positioned at bare bracket centre position;
Figure 11 is that overlay film lower limb of the present invention has the schematic diagram of certain distance apart from bare bracket bottom;
Figure 12 is that overlay film top edge of the present invention has the schematic diagram of certain distance apart from bare bracket top;
Figure 13 is the enforcement figure of the present invention while specifically using.
The specific embodiment
For technological means, technical characterictic, goal of the invention and the technique effect that the present invention is realized is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
For a kind of part film-coated vascular support 10 in the present invention, comprise bare bracket 20 and overlay film 30 as shown in Figure 1, Figure 2 and Figure 3, the bare bracket 20 in the present invention is Z-type support or net grid support.The bare bracket 20 of take in the present invention describes as net grid support, overlay film 30 as poly-four vinyl film.
In the part of bare bracket 20, be coated with described overlay film 30, overlay film 30 covers outer surface or the inner surface of bare bracket 20, or it is double-deck to cover surfaces externally and internally.Overlay film 30 account for described bare bracket 20 circumferential surfaces long-pending 1/2～3/4; And on the by-level line 31 of overlay film 30, being provided with at least one place the first opacity gauge point 40, this first opacity gauge point 40 also can be positioned at the center of overlay film 30.As shown in Figure 5, edge at overlay film 30, comprise left side edge 32, right side edge 33, top edge 34 and lower limb 35, the position for first opacity gauge point 40 common definite overlay films 30 is provided with at least two place's the second opacity gauge points 41 on above-mentioned edge.
As shown in Figure 5 and Figure 6, when in the present invention, the second opacity gauge point 41 is two places, this two places, second opacity gauge point 41 be take respectively described by-level line 31 and is located at the optional position of left side edge 32 or right side edge 33 as center line symmetry, also can be located at left side edge 32 and top edge 34, lower limb 35 or right side edge 33 two intersections with top edge 34, lower limb 35, be the position at four angles of overlay film, both can labelling overlay film edge also can labelling overlay film 30 scope.By the first opacity gauge point 40, determine with two place's the second opacity gauge points 41 position that bare brackets 20 discharge.
In the present invention, the second opacity gauge point 41 is for everywhere time, and take two places as one group, and two groups are located at respectively described left side edge 32 and right side edge 33; Or the second opacity gauge point 41 is everywhere located to the top edge 34 of left side edge 32, right side edge 33 and overlay film, the intersection of lower limb 35, shown in figure 9.
As shown in Figure 7 and Figure 8, in the present invention, left side edge 32, right side edge 33, top edge 34 and lower limb 35 are established two place's the second opacity gauge points 41 with one of them edge in addition, also can carry out edge combination arranges, such as left side edge 32 arranges the second opacity gauge point 41 with right side edge 33, top edge 34, lower limb 35 one of them collocation respectively, or four edges all arrange, as long as can determine the position of support 10 by the second opacity gauge point 41 is set, as Fig. 9.
Overlay film 30 in the present invention is mainly in order to cover aneurysm 50, when making its completely isolated tumor chamber to keep the unobstructed of parent artery.So the on the one hand isolated aneurysm 50 of medium-height trestle 10 of the present invention, guarantees the unobstructed of branch vessel 51 on the other hand.
As shown in Fig. 5 to 9, overlay film 30 coverage modes have multiple, as top edge 34, lower limb 35 with as described in top 21, the bottom 22 of bare bracket 20 overlap, overlay film 30 circumferentially covers along bare bracket 20.Or overlay film 30 covers between top 21, bottom 22, make bare bracket 20 parts outside exposed, make overlay film 30 along circumferentially the covering of bare bracket 20, as shown in figure 10.Or overlay film 30 overlaps with one end of bare bracket 20, the other end keeps certain interval, makes bare bracket 20 exposed, and overlay film 30 circumferentially covers along bare bracket 20, as shown in Figure 11 and Figure 12.Above-mentioned coverage mode, as long as can make overlay film 30 cover aneurysm 50.
It is long-pending 1/2～3/4 that overlay film in the present invention partly accounts for bare bracket 20 circumferential surfaces, in actual use, when the ratio of aneurysm 50 trans Ds and arterial lumen 52 girths is less than 1/3, selects the support of 1/2 overlay film; When its ratio is greater than 1/3 while being less than 1/2, select 3/4 overlay film frame, as shown in Figure 4.
The first opacity gauge point 31 in described overlay film 30 is positioned at the horizontal midpoint of overlay film 30, when overlay film edge the second opacity gauge point 41 is when vertical with x-ray, the first opacity gauge point 31 is in x-ray outermost, be convenient to the overlay film part of identification support 10, correct to guarantee that the position of support 10 discharges.
As shown in figure 13, during actual use, by the first opacity gauge point 41 alignment aneurysms 50 and branch vessel 51 midpoint, the rear assurance bare bracket 20 of releasing bracket 10 covers branch vessel 21, and overlay film 30 covers aneurysm 50.
When aneurysm 50 same levels have important blood vessels branch 51, rotation radiography is observed the relation of aneurysm 50 and branch vessel 51, by x-ray perpendicular to aneurysm 50 and vessel branch 51 lines, during releasing bracket 10 by the first opacity gauge point 40 alignment aneurysms 50 and branch vessel 51 line mid points, guarantee support 10 discharge after overlay film 30 cover aneurysms 50 and bare bracket 20 can not cover branch vessel 51.
The present invention longitudinally covers overlay film on bare bracket, in the middle of bare bracket overlay film, place's opacity gauge point is set, and two place's opacity gauge points are set at overlay film edge, in order to the position of determining that support discharges.When aneurysm same level has important blood vessels branch, rotation radiography is observed aneurysm and branch vessel relation, by x-ray perpendicular to aneurysm and vessel branch line, aneurysm and branch vessel line mid point during releasing bracket align opacity gauge point, guarantee that support discharges rear overlay film side and covers aneurysm, and bare bracket can not cover branch vessel.
Be only preferred embodiment of the present invention in sum, be not used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application the scope of the claims change and modify, all should belong to technology category of the present invention.
Claims (10)
1. part film-coated vascular support, comprises bare bracket and overlay film, it is characterized in that: the part of described bare bracket is coated with described overlay film, described overlay film account for described bare bracket circumferential surface long-pending 1/2～3/4; On the by-level line of overlay film, be provided with at least one place the first opacity gauge point; Left side edge, right side edge, top edge or lower limb at overlay film are provided with at least two place's the second opacity gauge points.
2. part film-coated vascular support according to claim 1, is characterized in that: described the second opacity gauge point is two places, and the described by-level line of take is respectively located at left side edge or right side edge as center line symmetry.
3. part film-coated vascular support according to claim 2, is characterized in that: described two place's the second opacity gauge points are located at two intersections of left side edge and top edge, lower limb or right side edge and top edge, lower limb.
4. part film-coated vascular support according to claim 1, is characterized in that: described the second opacity gauge point is for everywhere, and take two places as one group, and two groups are located at respectively described left side edge and right side edge.
5. part film-coated vascular support according to claim 4, is characterized in that: described the second opacity gauge point is everywhere located at the intersection of left side edge, right side edge and overlay film top edge, lower limb.
6. part film-coated vascular support according to claim 1, is characterized in that: the top edge of described overlay film, lower limb overlap with top, the bottom of described bare bracket.
7. part film-coated vascular support according to claim 1, is characterized in that: top and/or the bottom part of described bare bracket are exposed.
8. according to the part film-coated vascular support described in claim 1 to 7 any one, it is characterized in that: described overlay film circumferentially account for described bare bracket circumferential surface long-pending 1/2.
9. according to the part film-coated vascular support described in claim 1 to 7 any one, it is characterized in that: described overlay film circumferentially account for described bare bracket circumferential surface long-pending 3/4.
10. according to the part film-coated vascular support described in claim 1 to 7 any one, it is characterized in that: described bare bracket is Z-type support or net grid support; Described overlay film is poly-four vinyl film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410251137.4A CN103989539A (en) | 2014-06-08 | 2014-06-08 | Partial covering film vascular stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410251137.4A CN103989539A (en) | 2014-06-08 | 2014-06-08 | Partial covering film vascular stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103989539A true CN103989539A (en) | 2014-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410251137.4A Pending CN103989539A (en) | 2014-06-08 | 2014-06-08 | Partial covering film vascular stent |
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| CN (1) | CN103989539A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106214287A (en) * | 2016-08-24 | 2016-12-14 | 杨威 | Dissection of aorta operation overlay film frame, conveyer device and using method |
| CN107411846A (en) * | 2017-04-01 | 2017-12-01 | 上海长海医院 | A kind of part overlay film aorta ascendens support |
| CN116211379A (en) * | 2023-05-06 | 2023-06-06 | 上海暖阳医疗器械有限公司 | Tectorial membrane embolic stent and tectorial membrane process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2666375Y (en) * | 2003-12-26 | 2004-12-29 | 徐林 | Non-whole membrane internal stent |
| CN2787168Y (en) * | 2004-08-19 | 2006-06-14 | 复旦大学附属中山医院 | Asymmetric artificial bracket in blood vessel |
| WO2013060265A1 (en) * | 2011-10-25 | 2013-05-02 | 南京医科大学第一附属医院 | Recyclable and adjustable interventional stent for intravascular constriction |
| CN203861386U (en) * | 2014-06-08 | 2014-10-08 | 高峰 | Vascular stent partially covered with film |
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2014
- 2014-06-08 CN CN201410251137.4A patent/CN103989539A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2666375Y (en) * | 2003-12-26 | 2004-12-29 | 徐林 | Non-whole membrane internal stent |
| CN2787168Y (en) * | 2004-08-19 | 2006-06-14 | 复旦大学附属中山医院 | Asymmetric artificial bracket in blood vessel |
| WO2013060265A1 (en) * | 2011-10-25 | 2013-05-02 | 南京医科大学第一附属医院 | Recyclable and adjustable interventional stent for intravascular constriction |
| CN203861386U (en) * | 2014-06-08 | 2014-10-08 | 高峰 | Vascular stent partially covered with film |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106214287A (en) * | 2016-08-24 | 2016-12-14 | 杨威 | Dissection of aorta operation overlay film frame, conveyer device and using method |
| CN107411846A (en) * | 2017-04-01 | 2017-12-01 | 上海长海医院 | A kind of part overlay film aorta ascendens support |
| CN107411846B (en) * | 2017-04-01 | 2023-04-07 | 上海长海医院 | Ascending aorta stent with partial film covering |
| CN116211379A (en) * | 2023-05-06 | 2023-06-06 | 上海暖阳医疗器械有限公司 | Tectorial membrane embolic stent and tectorial membrane process |
| CN116211379B (en) * | 2023-05-06 | 2023-08-15 | 上海暖阳医疗器械有限公司 | Tectorial membrane embolic stent and tectorial membrane process |
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Application publication date: 20140820 |