CN208339633U - Check valve film overlay film frame - Google Patents
Check valve film overlay film frame Download PDFInfo
- Publication number
- CN208339633U CN208339633U CN201721090431.7U CN201721090431U CN208339633U CN 208339633 U CN208339633 U CN 208339633U CN 201721090431 U CN201721090431 U CN 201721090431U CN 208339633 U CN208339633 U CN 208339633U
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- Prior art keywords
- film
- overlay film
- valve
- aneurysm
- overlay
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- 206010002329 Aneurysm Diseases 0.000 claims abstract description 43
- 230000017531 blood circulation Effects 0.000 claims abstract description 37
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 210000001367 artery Anatomy 0.000 abstract description 19
- 239000012528 membrane Substances 0.000 abstract description 9
- 210000004204 blood vessel Anatomy 0.000 abstract description 8
- 230000003993 interaction Effects 0.000 abstract description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract 1
- 210000004369 blood Anatomy 0.000 description 23
- 239000008280 blood Substances 0.000 description 23
- 201000008450 Intracranial aneurysm Diseases 0.000 description 10
- 230000003902 lesion Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 238000010992 reflux Methods 0.000 description 6
- 206010028980 Neoplasm Diseases 0.000 description 5
- 230000036541 health Effects 0.000 description 5
- 230000002792 vascular Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 210000003743 erythrocyte Anatomy 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 230000001225 therapeutic effect Effects 0.000 description 3
- 208000021910 Cerebral Arterial disease Diseases 0.000 description 2
- 206010066901 Treatment failure Diseases 0.000 description 2
- 230000033115 angiogenesis Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 206010003226 Arteriovenous fistula Diseases 0.000 description 1
- 206010003694 Atrophy Diseases 0.000 description 1
- 206010008111 Cerebral haemorrhage Diseases 0.000 description 1
- 208000032851 Subarachnoid Hemorrhage Diseases 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 208000002223 abdominal aortic aneurysm Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 210000000702 aorta abdominal Anatomy 0.000 description 1
- 208000007474 aortic aneurysm Diseases 0.000 description 1
- 230000037444 atrophy Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 210000001105 femoral artery Anatomy 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000001435 haemodynamic effect Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000001361 intraarterial administration Methods 0.000 description 1
- 238000007917 intracranial administration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 208000037803 restenosis Diseases 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 208000019553 vascular disease Diseases 0.000 description 1
Landscapes
- Prostheses (AREA)
Abstract
This application discloses a kind of check valve film overlay film frames, comprising: overlay film, the overlay film are equipped with through-hole；Rack body, the rack body are used to support the overlay film；Film valve, the film valve are connected to the through hole of the overlay film, and the blood flow of the inside of the overlay film can flow into the aneurysm and vessel side branch by the film valve of opening, and the blood flow in the aneurysm can enable the film valve close when flowing back.The utility model make it is simple, it is easy to operate, it is at low cost, easily realize, one-way membrane can obstruct blood flow and flow into arteries from aneurysm, but not influence blood vessel breathing, inside and outside gas interaction.
Description
Technical field
The utility model relates to intracranial vessel blood shunt devices, refer in particular to a kind of check valve film overlay film frame.
Background technique
In the early 1990s, Parodi implements first case Endovascular Graft Exclusion for Abdominal Aortic Aneurysm in the world, and report
Overlay film frame treats the clinical application of 5 abdominal aortas, has established the historical one piece of milestone of Endovascular therapy.With skill
Art is constantly brought forth new ideas, and superiority of the overlay film frame in treatment Cerebral artery diseases is increasingly recognized, and application has very
Big feasibility, such as intracranial aneurysm, arteriovenous fistula vascular diseases.Intracranial aneurysm occurs mainly in entocranial artery pipe part
Vascular wall it is thinning, thus abnormal dilatation, form capsule protuberance.As blood flow impacts, aneurysm wall is gradually thinning, will finally break
Splitting leads to cerebral hemorrhage, i.e. spontaneous subarachnoid hemorrhage, and consequence is often to generate the main reason for serious symptoms are even dead.
Existing arteries and veins tumor neck clip is closed or is ligatured, aneurysm isolates art, the operation of opening cranium of aneurysm package art is all palliative, and is covered
Membrane support stent implantation has started new era, reduces operation risk, largely reduces recurrence rate.Overlay film frame
The cardinal principle for treating intracranial aneurysm is exactly to be punctured using femoral artery in brief, is then implanted into patient vessel
A kind of bracket with biological barrier can completely cut off, occlude intracranial aneurysm, while retain the unimpeded of parent artery, restore lesion
The normal haemodynamics in region, realizes the dissection reconstruct of parent artery, to reach the aneurysmal purpose for the treatment of.
Now, for existing technology, overlay film frame is satisfactory in the immediate effect for the treatment of Cerebral artery diseases
, but some technological deficiencies as existing for overlay film frame, lead to that in-stent restenosis at a specified future date easily occurs and increases thrombus
Rate.Such as: when bracket be covered be perforated film when, being able to achieve in collatoral vessel has blood flow flowing, at the same time, intracranial aneurysm
Blood flow can also fluctuate, and so that blood is flowed out aneurysm by aperture, into blood vessel.Repeatedly, allow formation in aneurysm inverse
Road is flowed back to, intracranial aneurysm is promoted to become larger, treatment failure；Blood when what is be covered on bracket is non-porous film, in intracranial aneurysm
Liquid does not flow into artery, but when endarterial erythrocyte can not equally enter in collatoral vessel, if things go on like this, collateral
Blood vessel cannot get blood by with moisten, will form lesion, generate new disease.
The utility model patent of Publication No. 105287048A discloses a kind of overlay film frame, including support construction and packet
Cover overlay film on the support structure；Overlay film therein is made of at least two layers of acellular periplast film overlapping, every layer of base
The shiny surface of plasma membrane is coarse both facing to support construction to be faced outwardly；Adjacent two layers matrix membrane is intersected by the collagenous fiber bundle direction of growth
Angled mode arranges.It is other in addition to innermost layer matrix membrane at least two layers of acellular periplast film
It is designed with multiple perforation on matrix membrane, and is gradually increased from internal layer to outer layer aperture.The overlay film side that this overlay film frame uses
Formula, in process aspect complexity, processing is not easy, and cost is also relatively higher, and most importantly its aperture is greater than erythrocyte diameter,
Endovascular pressure can promote blood stream into aneurysm, and the blood that aneurysmal erythrocyte can also be infiltrated through by aperture,
Vortex is formed, to be unable to reach curative effect.
203861386 U utility model patent of Publication No. CN discloses a kind of part film-coated vascular bracket, including
Bare bracket and overlay film, the bare bracket are locally covered with the overlay film, and the overlay film accounts for the bare bracket circumferential surface product
1/2~3/4；The first opacity mark point at least one is equipped on the by-level line of overlay film；Overlay film left side edge,
Right side edge, top edge or lower edge are equipped with the second opacity mark point at least two.This application is longitudinally covered naked by overlay film
On bracket, user's letter speed cannot be allowed to differentiate overlay film face in the opacity mark point of film edge setting, thus influence to perform the operation,
And it once differentiates mistake or fails to be adjusted to accurate location, generation collatoral vessel is coated film surface and blocks, and aneurysm is not complete
Covering, can make aneurysm become larger instead, collatoral vessel lesion or atrophy, aggravate the state of an illness.
Utility model content
The utility model is in view of the above-mentioned problems, propose a kind of check valve film overlay film frame, for solving in the prior art
Countercurrent loop is formed when overlay film has hole in aneurysm, collatoral vessel forms lesion and part film-coated vascular bracket when overlay film is non-porous
The problem of being unable to fast resolution overlay film face.
To solve the above-mentioned problems, the utility model proposes a kind of check valves that collatoral vessel can be allowed to have blood circulation
Membrane support main body, including overlay film, the overlay film are equipped with through-hole；Rack body, the rack body are used to support the overlay film；
Film valve, the film valve are connected to the through hole of the overlay film, and the blood flow of the inside of the overlay film can pass through the film valve of opening
The aneurysm and vessel side branch are flowed into, the blood flow in the aneurysm can enable the film valve close when flowing back.
For the utility model by utilizing check valve mechanism, check valve film overlay film frame carries out blood by the through-hole on overlay film
Circulation, it is hydraulic due to the hydraulic outside greater than overlay film inside the overlay film of check valve film overlay film frame so that check valve film
Blood flow inside overlay film frame can enter collateral blood vessel, and the blood flow inside aneurysm enters less than check valve film overlay film
The inside of bracket, to prevent from forming vortex inside aneurysm, to reach therapeutic purposes.
The further improvement of the utility model is that the side of the film valve and through-hole suture connect.It is logical in this way
Cross the angle for the opening for selecting different stitch points to control film valve.
The further improvement of the utility model is that the area of the film valve is more than or equal to the area of the through-hole.Film
The area of valve is more than or equal to the area of through-hole, and when so that the blood flow in aneurysm wanting reflux, film valve can be closed on overlay film
Through-hole, and the contact area of film valve becomes larger, and reversed leakproofness also becomes larger, and increases the effect of check valve film, realizes blood flow
One-way flow.
The further improvement of the utility model is, the film valve and the overlay film integrally connected, and the film valve
Side is fixedly connected with the side of the through-hole.Membrane valve is cut on overlay film by class circle cutting, by controlling cutting position,
It is opened so that film valve is pico- outward under the impact of blood flow, so that blood is able to enter collatoral vessel, when blood in aneurysm
When wanting reflux, with the intravascular pressure difference mutually formed in tumor, film valve will be promoted to be closed, to prevent the formation of reflux.
The further improvement of the utility model is that the through-hole is distributed evenly in the surface of the overlay film.Uniformly
It is more uniform when the through-hole of distribution flows the blood vessel in arteries into vessel side branch and aneurysm, be conducive to human body
Health restoration.
The further improvement of the utility model is, is specified angle with the angle of the overlay film when film valve opens
Degree.The angle of film valve and overlay film is arranged to 0~30 °, so that the blood flow in arteries is to collatoral vessel and aneurysmal blood
Flow meets the needs of human health, while when the blood flow in aneurysm flows back, and also can prevent returning for blood flow for effective
Stream, to achieve the purpose that treatment.
The further improvement of the utility model is that the diameter of the through-hole is 30~50 microns.The diameter of through-hole is
30~50 microns, so that the blood in arteries flows to aneurysm and the blood flow of collatoral vessel guarantees supply, also can
The blood flow vortex in aneurysm is effectively prevented, the Health restoration of patient is conducive to.
The beneficial effects of the utility model are: the check valve film overlay film frame of the utility model can allow collatoral vessel to have blood
Liquid stream is logical, reduces the probability that vortex is formed in aneurysm, and does not influence the gas interaction of extra vascular, reduces aneurysm
The probability of neighbouring angiogenesis lesion again.Film valve structure makes when blood flow is by overlay film frame body interior, endovascular
Pressure can promote film valve to be flared out, and blood can be allowed to enter collatoral vessel；When pressure is made to be used for overlay film frame master in aneurysm
When body surface face, due to the inside of film valve the hydraulic outside greater than film valve it is hydraulic, to prevent from forming vortex inside aneurysm,
To reach therapeutic purposes.
Detailed description of the invention:
Fig. 1 is the schematic diagram of the check valve film overlay film frame of the preferred embodiment one of the utility model；
Fig. 2 is the schematic diagram of the check valve film overlay film frame of the preferred embodiment two of the utility model；
Fig. 3 is the application drawing of the check valve film overlay film frame of the utility model；
Fig. 4 is the film valve of the utility model and the suture way one of overlay film；
Fig. 5 is the film valve of the utility model and the suture way two of overlay film.
Each appended drawing reference in figure are as follows:
1, check valve film overlay film frame；11, rack body；12, film valve；13, overlay film；14, stitch points；2, aneurysm；3,
Vessel side branch；4, arteries.
Specific embodiment:
Below in conjunction with attached drawing, the above and other technical features and advantages of the present invention are carried out clearly and completely
Description, it is clear that described embodiment is only the section Example of the utility model, rather than whole embodiments.
The utility model provides a kind of check valve film overlay film frame.One kind of traditional overlay film frame main body is to have hole
Film, being able to achieve in collatoral vessel has blood flow flowing, and at the same time, the blood flow of intracranial aneurysm can also fluctuate, and keeps blood logical
Small holes flow out aneurysm, into blood vessel.Repeatedly, it allows aneurysm is interior to form countercurrent loop, intracranial aneurysm is promoted to become larger,
Treatment failure；When what is be covered on rack body is non-porous film, the blood in intracranial aneurysm does not flow into artery, but intra-arterial
Erythrocyte equally can not enter collatoral vessel in when, if things go on like this, collatoral vessel cannot get blood by with
It moistens, will form lesion, generate new disease.The utility model check valve film overlay film frame passes through the overlay film frame master in aperture
Body is equipped with the film valve of non-return valve function, so that the blood in check valve film overlay film frame can flow into collatoral vessel, and
Aneurysmal blood cannot flow into arteries, to achieve the purpose that radical cure.With reference to the accompanying drawing to the list of the utility model
It is illustrated to the structure of valve film overlay film frame.
Referring to Fig. 1~3, the utility model be a kind of check valve film overlay film frame, including rack body 11, overlay film 13 and
Film valve 12.Wherein, overlay film 13 is covered on rack body 11, so that overlay film 13 is in contact with blood vessel, and on overlay film 13
Be uniformly provided with through-hole, film valve 12 is connected to the through hole on overlay film 13, due to overlay film 13 inside it is hydraulic greater than overlay film 13
External is hydraulic, so the blood flow in arteries 4 can flow into aneurysm 2 and vessel side branch 3 by the film valve 12 of opening, but
When being that blood flow in aneurysm 2 attempts to flow back, film valve 12 can but be closed, so that blood flow cannot flow into arteries 4, into
And achieve the purpose that treatment.
The connection type of film valve 12 and overlay film 13 can be multiplicity, as the preferred embodiment one of the utility model, film
Valve 12 and the connection type of overlay film 13 are that film valve 12 is similar with the shape of overlay film 13 (by taking circle as an example), and wherein film valve 12 is wanted
It is more relatively large than the through-hole on overlay film surface, it is at least in the same size with through-hole.By suturing the part side of film valve 12, thus
It is connect with the side of the through-hole on overlay film 13, so as to cover the through-hole on 13 surface of overlay film.It can not only make film valve structure in this way
Reach ideal effect, moreover, the contact area of film valve 12 increases, and reversed leakproofness also becomes larger when aneurysm 2 will flow back, because
This increases the effect of check valve film, realizes blood flow one-way flow.
Preferably, film valve 12 is in 0~30 ° with the angle of overlay film 13 when opening, the angle is by controlling film valve 12 and covering
The position of stitch points 14 between film 13 is realized, as shown in figure 4, film valve 12 is covered on overlay film using arc sewing
On 13 through-hole, then carry out multiple spot suture, so that film valve 12 and overlay film 13 is fixed, film valve 12 opens, thus make blood into
Row interaction.As shown in figure 5, fixed middle section, so that 12 both sides of film valve are opened, angle is smaller using triangle sewing.So that
The structure of film valve 12 reaches ideal effect.But the suture of the utility model film valve 12 and overlay film 13 is not limited only to above-mentioned suture side
Formula.
As the preferred embodiment two of the utility model, film valve 12 and overlay film 13 are integrated connection, the side of film valve 12
It is fixedly connected with the side of through-hole.Film valve 12 be by overlay film 13 carry out class circle cutting, residue circle a part not by
It cuts off, but forms a kind of valve membrane structure, by controlling cutting position, so that film valve is pico- outward under the impact of blood flow
It opens, so that blood is able to enter collatoral vessel, when blood wants reflux in aneurysm, is mutually formed in tumor with intravascular
Pressure difference, will promote film valve be closed, thus prevent reflux formation.In the utility model, under blood flow impact, film valve 12 will
Pico- outward 0~30 ° can be opened, allow blood to be able to enter collatoral vessel 3, when blood wants reflux in aneurysm 2, move
The pressure difference mutually formed in arteries and veins tumor and in arteries 4, will promote film valve 12 to be closed, to prevent the formation of vortex.
Through-hole is evenly distributed on overlay film, so making arteries 4 and vessel side branch 3, artery in the operating condition
Blood flow in tumor 2 is more uniform, and speed is also more gentle, is conducive to the Health restoration of human body.
In order to guarantee the supply of blood flow amount in vessel side branch 3 and aneurysm 2, and can effectively prevent in aneurysm 2
Blood flow vortex, is conducive to the Health restoration of patient, and it is micro- that the utility model by the diameter of the through-hole on overlay film 13 sets 30~50
Rice.
The check valve film overlay film frame of the utility model can allow collatoral vessel to have blood circulation, reduce shape in aneurysm
At the probability of vortex, and the gas interaction of extra vascular is not influenced, it is ensured that aneurysm angiogenesis nearby lesion again
Probability.Film valve structure makes when blood flow is by overlay film frame body interior, and endovascular pressure can promote film valve to be flared out,
Blood can be allowed to enter collatoral vessel；When pressure is made for overlay film frame body surfaces in aneurysm, film valve can be because mutually pressing
Power and be in closed state, prevent from forming vortex inside aneurysm, to reach therapeutic purposes.And the utility model production letter
It is single, it is easy to operate, it is at low cost, it easily realizes, one-way membrane can obstruct blood flow and flow into artery from aneurysm, but do not influence blood vessel and exhale
It inhales, inside and outside gas interaction.
The above is only the preferred embodiment of the present invention, not thereby limits the patent protection of the utility model
Range, it is all with equivalent structure transformation made by the utility model specification and accompanying drawing content, directly or indirectly it is used in it
His relevant technical field similarly includes within the protection scope of the present utility model.
Claims (7)
1. a kind of check valve film overlay film frame characterized by comprising
Overlay film, the overlay film are equipped with through-hole；
Rack body, the rack body are used to support the overlay film；
Film valve, the film valve are connected to the through hole of the overlay film, and the blood flow of the inside of the overlay film can pass through opening
Film valve flows into aneurysm and vessel side branch, and the blood flow in the aneurysm can enable the film valve close when flowing back.
2. check valve film overlay film frame as described in claim 1, which is characterized in that the side of the film valve and the through-hole
Side suture connection.
3. check valve film overlay film frame as claimed in claim 2, which is characterized in that the area of the film valve is more than or equal to described
The area of through-hole.
4. check valve film overlay film frame as described in claim 1, which is characterized in that the film valve integrally connects with the overlay film
It connects, and the side of the film valve is fixedly connected with the side of the through-hole.
5. check valve film overlay film frame as described in claim 1, which is characterized in that the through-hole is distributed evenly in described cover
The surface of film.
6. check valve film overlay film frame as described in claim 1, which is characterized in that be in the overlay film when film valve opens
Specified angle.
7. check valve film overlay film frame as described in claim 1, which is characterized in that the diameter of the through-hole is 30~50 micro-
Rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721090431.7U CN208339633U (en) | 2017-08-29 | 2017-08-29 | Check valve film overlay film frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721090431.7U CN208339633U (en) | 2017-08-29 | 2017-08-29 | Check valve film overlay film frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208339633U true CN208339633U (en) | 2019-01-08 |
Family
ID=64873373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721090431.7U Active CN208339633U (en) | 2017-08-29 | 2017-08-29 | Check valve film overlay film frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208339633U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107334561A (en) * | 2017-08-29 | 2017-11-10 | 珠海通桥医疗科技有限公司 | Check valve film overlay film frame |
| WO2022068167A1 (en) * | 2020-09-29 | 2022-04-07 | Suzhou Zenith Vascular Scitech Limited | Covered stent |
-
2017
- 2017-08-29 CN CN201721090431.7U patent/CN208339633U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107334561A (en) * | 2017-08-29 | 2017-11-10 | 珠海通桥医疗科技有限公司 | Check valve film overlay film frame |
| CN107334561B (en) * | 2017-08-29 | 2024-04-26 | 通桥医疗科技有限公司 | One-way valve film covered stent |
| WO2022068167A1 (en) * | 2020-09-29 | 2022-04-07 | Suzhou Zenith Vascular Scitech Limited | Covered stent |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 519000 Zhuhai City, Guangdong Province, Xiangzhou District, Tangjiawan Town Science and Technology 7 Road No. 1 Zhuhai Medium-Electricity High-tech Industrial Park, 4 1-B Units Patentee after: Tongqiao Medical Technology Co.,Ltd. Country or region after: China Address before: 519000 Zhuhai City, Guangdong Province, Xiangzhou District, Tangjiawan Town Science and Technology 7 Road No. 1 Zhuhai Medium-Electricity High-tech Industrial Park, 4 1-B Units Patentee before: ZHUHAI TONGQIAO MEDICAL TECHNOLOGY CO.,LTD. Country or region before: China |
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| CP03 | Change of name, title or address |