CN107569299A - A kind of bioabsorbable stent - Google Patents
A kind of bioabsorbable stent Download PDFInfo
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- CN107569299A CN107569299A CN201710786065.7A CN201710786065A CN107569299A CN 107569299 A CN107569299 A CN 107569299A CN 201710786065 A CN201710786065 A CN 201710786065A CN 107569299 A CN107569299 A CN 107569299A
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- crest
- ripple
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- dowel
- bioabsorbable stent
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Abstract
The invention discloses a kind of bioabsorbable stent, including ripple ring and dowel；The ripple ring includes crest, trough and ripple bar, and multiple crests, multiple ripple bars and multiple troughs join end to end respectively；Connected respectively by least one dowel between two relative ripple rings.Using bioabsorbable stent provided by the invention, crest, trough, ripple bar and the dowel structure of the high support force of low stress peak value, enabling capabilities of the support to blood vessel are improved, reduce stent-expansion fracture, the risk that fatigue failure, supporting construction moment collapse.Strength struts narrow zone during release, and simultaneously covered stent, support are gradually degraded for inner membrance growth, and blood vessel recovers original anatomic morphological, and then long term recovers vessel retraction diastolic function.
Description
Technical field
The present invention relates to technical field of medical instruments, more specifically to a kind of bioabsorbable stent.
Background technology
Cardiovascular and cerebrovascular disease has become the big cause of the death that beats the world.At present, for the treatment method of ischemic heart disease
Mainly there are three kinds：Using the Primary Care of medicine, carry out the operative treatment of coronary artery bypass grafting, by inserting coronary artery bracket etc. so as to solving
Except the PCI of coronary stenosis.Above-mentioned several treatment methods all achieve obvious effect in terms of coronary artery stenosis is treated
Fruit, but each still suffer from the problem of some are notable.
Wherein, percutaneous transluminal coronary stent implantation is that mounting system is transported into target area, sacculus by way of puncturing and intervening
Expansion release support, struts stenotic lesion blood vessel, recovers blood supply, treat ischemic heart disease.The support clinically used at present
It is broadly divided into metallic support and bioabsorbable stent.Metallic support can strongly strut lesion vesselses, relief of symptoms, but its permanent plant
Enter human body, it is necessary to which long-term use of dual anti-and anti-rejection medication, patient's body and financial burden are heavier.Meanwhile metallic support is long-term
Usual rate it is relatively low, long term needs further treatment.After bioabsorbable stent implantation human body, lesion vesselses can be strutted, and pass through
Endothelial cell growth covered stent, support are then gradually degraded, and blood vessel recovers original anatomic morphological, and then recovery blood vessel at a specified future date
Shrink diastolic function.
However, bioabsorbable stent common in the art its structural support deficiency, postoperative 6-12 months start tube chamber
Loss Rate raises, restenosis rate rise, the rise of reconstructing blood vessel rate；Local deformation degree is high, and peak stress is high.Bioabsorbable stent knot
The structural damage when stress concentration of structure may cause to process and use, and then trigger expansion fracture and fatigue failure.In addition, human body
In interior environment, structural stress concentrated area may be taken the lead in degrading, and trigger structural break or moment support force to lose, and support support is collapsed
Collapse.
In summary, bioabsorbable stent long term support power deficiency, tube chamber Loss Rate height, local stress how to be efficiently solved
The problems such as concentration, it is current those skilled in the art's urgent problem.
The content of the invention
In view of this, it is an object of the invention to provide a kind of bioabsorbable stent, the structure design of the bioabsorbable stent can
The problem of to efficiently solve high bioabsorbable stent long term support power deficiency, tube chamber Loss Rate, stress raisers.
In order to achieve the above object, the present invention provides following technical scheme：
A kind of bioabsorbable stent, including ripple ring and dowel；The ripple ring includes crest, trough and ripple bar, multiple described
Crest, multiple ripple bars and multiple troughs join end to end respectively；Respectively by extremely between two relative ripple rings
A few dowel connection.
Preferably, in above-mentioned bioabsorbable stent, the crest and the trough of the ripple ring are intervally arranged, and pass through
The ripple bar connection.
Preferably, in above-mentioned bioabsorbable stent, the intrados of the crest in seamlessly transit, breach transition and bulge transition
In one or more；The intrados of the trough in seamlessly transit, the one or more in breach transition and bulge transition；
And/or the extrados of the crest is in seamlessly transit and the one or more in bulge transition；Outside the trough
Cambered surface is in seamlessly transit and the one or more in bulge transition.
Preferably, in above-mentioned bioabsorbable stent, the crest include solid crest and one kind in middle hollow out crest or
It is a variety of；The trough includes the one or more in solid trough and middle hollow out trough.
Preferably, in above-mentioned bioabsorbable stent, the ripple bar width center line is linear, sine and cosine is linear, double
One or more in fold-line-shaped and lightning shape.
Preferably, in above-mentioned bioabsorbable stent, the ripple bar includes the consistent straight rod member of width, intermediate width is less than both ends
One or more in the rod member and hollow rods of width.
Preferably, in above-mentioned bioabsorbable stent, the both ends of the ripple bar are integrally cut with the crest and the trough respectively
Cut, weave, welding, being glued or colligation connects.
Preferably, in above-mentioned bioabsorbable stent, the dowel include the oval connecting rod in straight connecting rods, middle part and
One or more in the connecting rod that middle part assumes diamond in shape.
Preferably, in above-mentioned bioabsorbable stent, the dowel is connected to the crest and crest of relative two ripple rings
Between, between trough and trough, between crest and ripple bar, between trough and ripple bar, between crest and trough, ripple bar and ripple bar it
Between in one or more.
Preferably, in above-mentioned bioabsorbable stent, the dowel both ends are cut, weave, weld, are glued or tied up by integral
Bundle is connected with the adjacent ripple ring.
Preferably, in above-mentioned bioabsorbable stent, the crest, the trough, the material of the ripple bar and the dowel
For the one or more in PLA, magnesium alloy and ferroalloy.
Bioabsorbable stent provided by the invention includes ripple ring and dowel.Wherein, ripple ring includes multiple ripple crests, Duo Gebo
Paddy and multiple ripple bars, crest, trough and ripple bar join end to end respectively；Pass through at least one company respectively between two relative ripple rings
Connect muscle connection.
Using bioabsorbable stent provided by the invention, when bioabsorbable stent is discharged to diseased region and fully struts narrow blood
Guan Shi, crest, trough, ripple bar and dowel are in close contact with vascular wall.Hold, expand and body when carrying out pressure to bioabsorbable stent
During interior fatigue load, local stress peaks are mainly appeared on crest intrados and trough intrados.And mainly play a supportive role
Crest extrados and trough extrados and the unstressed concentration of dowel.To sum up, using the ripple of the high support force of low stress peak value
Peak, trough, ripple bar and dowel structure, enabling capabilities of the support to blood vessel are improved, reduce stent-expansion fracture, fatigue is lost
The risk that effect, supporting construction moment collapse.Strength struts narrow zone, endothelial cell growth and covered stent, support during release
Gradually degraded, blood vessel recover original anatomic morphological, and then recovery vessel retraction diastolic function at a specified future date.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the bioabsorbable stent of a specific embodiment of the invention；
Fig. 2 is the structural representation of Fig. 1 medium wave rings；
Fig. 3 is the structural representation of Fig. 2 medium wave peaks；
Fig. 4 is the structural representation of trough in Fig. 2；
Fig. 5 (a)-Fig. 5 (l) is several structural representations of crest；
Fig. 6 (a)-Fig. 6 (d) is several configuration schematic diagrames of ripple bar；
Fig. 7 (a)-Fig. 7 (c) is the configuration schematic diagram of several compactedness profiles of ripple bar；
Fig. 8 (a)-Fig. 8 (c) is several configuration schematic diagrames of dowel；
Fig. 9 (a)-Fig. 9 (f) is the structural representation of several relative positions of dowel.
Marked in accompanying drawing as follows：
Ripple ring 1；Dowel 2；Crest 10；Trough 11；Ripple bar 12；Crest intrados 101, crest extrados 102；In trough
Cambered surface 111；Trough extrados 112；Crest intrados breach 1011；Crest intrados bulge 1012；Crest extrados bulge
1021；Middle engraved structure 103 on crest.
Embodiment
The embodiment of the invention discloses a kind of bioabsorbable stent, to improve support force of the supporting structure to blood vessel, reduces art
Tube chamber Loss Rate, restenosis rate and reconstructing blood vessel rate afterwards；The structural stress peak value during processing and use is reduced, reduces structure
Impaired and local accelerated degradation generation, the risk that reduction expansion fracture, fatigue failure and supporting construction moment collapse.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1-Fig. 2 is referred to, Fig. 1 is the structural representation of the bioabsorbable stent of a specific embodiment of the invention, and Fig. 2 is
The structural representation of Fig. 1 medium wave rings.
In a specific embodiment, bioabsorbable stent provided by the invention includes ripple ring and dowel.
Wherein, ripple ring 1 includes multiple ripple crests 10, multiple troughs 11 and multiple ripple bars 12, crest 10, trough 11 and ripple bar
12 join end to end respectively.Namely crest 10, trough 11 and ripple bar 12 are connected to form overall structure, can specifically pass through ripple bar 12
Crest 10 is connected with crest 10, trough 11 is connected with trough 11 or crest 10 is connected with trough 11.As needed, can also
Crest 10 is directly connected with trough 11.The arrangement mode of namely crest 10, trough 11 and ripple bar 12 can be according to specific needs
Set.It should be noted that crest 10 is the structure to raise up, trough 11 is downwardly convex structure, and is up and down relative
Position relationship.Integral unit is connected into by ripple bar 12 between crest 10 and trough 11.Multiple units of ripple ring 1 are in turn connected into
For ripple ring.
Connected respectively by least one dowel 2 between two relative ripple rings 1.Namely pass through at least one connection
Muscle 2 connects different ripple rings 1, forms monolithic stability structure.Certainly, it should be and can be absorbed for ripple ring 1 and dowel 2
Materials for support, specifically refer to associated materials of the prior art, be not construed as limiting herein.
Fig. 3-Fig. 4 is referred to, Fig. 3 is the configuration picture of crest, and Fig. 4 is the configuration picture of trough.Crest intrados 101 specifically may be used
Think inner arc, crest extrados 102 is specifically as follows outer arc.Trough intrados 111 is specifically as follows inner arc,
Trough extrados 112 is specifically as follows outer arc.Certainly as needed, the intrados and extrados of crest 10 and trough 11
Can be elliptic arc or other cambered surfaces.When bioabsorbable stent is discharged to diseased region and fully struts narrow blood vessel, crest 10,
Trough 11, ripple bar 12 and dowel 2 are in close contact with vascular wall, wherein, there is provided the structure of support force is mainly crest 10, ripple
Paddy 11 and dowel 2；Hold, expand and during internal fatigue load when carrying out pressure to bioabsorbable stent, local stress peaks mainly go out
On present crest intrados 101 and trough intrados 111.112 unstressed concentration of crest extrados 102 and trough extrados, but
Support force is influenceed very big.12 unstressed concentration of ripple bar, support force is influenceed little.2 unstressed concentration of dowel, but to support
Power influences very big.
Crest 10, the optimizing structure design of trough 11 can improve structural support, reduce local stress peaks, reduce and expand
Tensile crack, fatigue failure, supporting construction collapse equivalent risk.
Using bioabsorbable stent provided by the invention, when bioabsorbable stent is discharged to diseased region and fully struts narrow blood
Guan Shi, crest 10, trough 11, ripple bar 12 and dowel 2 are in close contact with vascular wall.When bioabsorbable stent is carried out pressure hold,
When expansion and internal fatigue load, local stress peaks are mainly appeared on crest intrados 101 and trough intrados 111.And
The unstressed concentration of crest extrados 102 and trough extrados 112 and dowel 2 mainly to play a supportive role.To sum up, use is low
Crest 10, trough 11, ripple bar 12 and the structure of dowel 2 of the high support force of peak stress, improve support energy of the support to blood vessel
Power, reduce stent-expansion fracture, the risk that fatigue failure, supporting construction moment collapse.Strength struts narrow zone during release,
Simultaneously covered stent, support are gradually degraded for inner membrance growth, and blood vessel recovers original anatomic morphological, and then vessel retraction at a specified future date of recovering is relaxed
Zhang Gongneng.
Preferably, the crest 10 of ripple ring 1 is intervally arranged with trough 11, and is connected by ripple bar 12.Namely crest 10,
Ripple bar 12, trough 11 are in turn connected to form crest 10 and 11 spaced structure of trough so that the overall structure of ripple ring 1 is more
Stable, stress is more uniformly distributed.
Further, the intrados of crest 10 in seamlessly transit, the one or more in breach transition or bulge transition；Ripple
The intrados of paddy 11 be in seamlessly transit, the one or more in breach transition and bulge transition.Namely for the multiple of ripple ring 1
Crest 10, its intrados can be the same or different, be specifically as follows seamlessly transit, one in breach transition and bulge transition
Kind or two kinds and two or more.For multiple troughs 11 of ripple ring 1, its intrados can be the same or different, specifically can be with
To seamlessly transit, one or both of breach transition and bulge transition and two or more.
Specifically, the extrados of crest 10 is in seamlessly transit and the one or more in bulge transition；The outer arc of trough 11
Face is in seamlessly transit and the one or more in bulge transition.Namely for multiple crests 10 of ripple ring 1, its extrados shape
It can be the same or different, be specifically as follows and one or both of seamlessly transit with bulge transition；For the multiple of ripple ring 1
Trough 11, its extrados can be the same or different, and are specifically as follows and one or both of seamlessly transit with bulge transition.
Refer to Fig. 5 (a)-Fig. 5 (l), respectively the 12 of crest kind different structure schematic diagram.On crest intrados 101
Breach transition, i.e. crest intrados breach 1011 are designed, can improve or avoid the extrusion stretching of local material to deform, is reduced local
Peak stress.Bulge transition, i.e. crest intrados bulge 1012 can also be designed on crest intrados 101, structure branch can be improved
Support force.Bulge transition, i.e. crest extrados bulge 1021 can be designed on crest extrados 102, structural support can be improved.When
So, crest intrados 101 and crest extrados 102 can be the cambered surface seamlessly transitted, as shown in Fig. 5 (d).
Further, crest 10 includes the one or more in solid crest and middle hollow out crest；Trough includes solid
One or more in trough or middle hollow out trough.Namely can be with identical for multiple crests 10 of ripple ring 1, its structure
Can be different, it can specifically include one or both of solid crest or middle hollow out crest.The middle hollow out knot of crest 10
Structure 103 can improve or avoid the extrusion stretching of local material to deform, and reduce local stress peaks.The optimizing structure design of trough 11
It is identical with the correspondence of crest 10.
Specifically, crest intrados breach 1011 can be in circular arc cutaway, oval notch and sine and cosine v notch v
One or more.Crest intrados bulge 1012 can be in circular arc bulge, oval bulge and sine and cosine shape bulge
It is one or more.Middle engraved structure 103 on crest can be the one or more in circular hollow out and oval hollow out.This
In for breach transition, bulge transition, middle engraved structure curve transition configuration include but is not limited to it is above-mentioned several, as long as
Curve can form breach transition, bulge transition, middle engraved structure.
On the basis of the various embodiments described above, the width center line of ripple bar 12 is linear, sine and cosine is linear, dual slope
One or more in shape and lightning shape.Namely more than ripple ring 1 multiple ripple bars 12 for, its structure can with it is identical can also
It is different.The optimizing structure design of ripple bar 12 reduces crest 10 and ripple by way of the flexible material with reduction of curvilinear structures increase
Local stress peaks at paddy 11, reduction expansion fracture, fatigue failure, supporting construction collapse equivalent risk.In order to be better understood from
The configuration of ripple bar 12, refer to Fig. 6 (a)-Fig. 6 (d), and Fig. 6 (a) is that width center line shows in the ripple bar structure of sine and cosine shape
It is intended to；Fig. 6 (b) is the linear ripple bar structural representation of width center line；Fig. 7 (c) is that width center line is in
Two-fold linear ripple bar structural representation；Fig. 7 (a) is the ripple bar structural representation that width center line is in lightning shape.
Further, ripple bar 12 includes the consistent straight rod member of width, intermediate width is less than the rod member or hollow of both ends width
One or more in rod member.Fig. 7 (a)-Fig. 7 (c) is refer to, Fig. 7 (a) is straight rod member；Fig. 7 (b) is hollow rods；Fig. 7 (a)
It is less than the rod member of both ends width for intermediate width.Namely the compactedness profile configuration of ripple bar 12 can be in uniform shape, inside
Empty shape or dog bone shape.Here the compactedness profile configuration for ripple bar 12 includes but is not limited to above-mentioned several, as long as profile
Material can uniformly be reduced.
Specifically, the both ends of ripple bar 12 are welded with crest 10 and trough 11, are glued or colligation is connected respectively.As needed,
It can also cut, weave or be integrally formed by integral between crest 10 and trough 11.
In the various embodiments described above, dowel 2 assumes diamond in shape including the oval connecting rod in straight connecting rods, middle part or middle part
Connecting rod in one or more.Also just the structure of individual dowel 2 can be the same or different at last, can specifically wraps
Include the oval connecting rod in straight connecting rods, middle part or connecting rod that middle part assumes diamond in shape in one or more.Dowel 2 it is excellent
Change the support force that structure design improves bioabsorbable stent.In order to be better understood from the configuration of dowel, Fig. 8 (a) -8 refer to
(b), it is respectively straight rod-shaped structure, middle ellipsoidal structure, middle diamond structure, and the structure of dowel 2 can select above-mentioned
One or more in several configurations.
Further, dowel 2 be connected between the crest 10 and crest 10 of relative two ripple rings 1, trough 11 and trough
Between 11, between crest 10 and ripple bar 12, between trough 11 and ripple bar 12, between crest 10 and trough 11, ripple bar 12 and ripple bar
One or more between 12.In order to be better understood from the position of dowel 2, Fig. 9 (a) -9 (f) is refer to, Fig. 9 (a) is company
Connect crest and crest that muscle both ends connect two ripple rings；Fig. 9 (b) is the trough and trough that dowel both ends connect two ripple rings；Fig. 9
(c) crest and ripple bar of two ripple rings are connected for dowel both ends；Fig. 9 (d) is the trough and ripple that dowel both ends connect two ripple rings
Bar；Fig. 9 (e) is the crest and trough that dowel both ends connect two ripple rings；Fig. 9 (f) is the ripple that dowel both ends connect two ripple rings
Bar and ripple bar.
In the various embodiments described above, crest, trough, the material of ripple bar and dowel are PLA, magnesium alloy or ferroalloy
In one or more.It is of course also possible to it is other conventional absorbable materials in the prior art.
To sum up, in bioabsorbable stent provided by the present invention, preferably ripple ring 1 and dowel 2 are included, ripple ring 1 includes
Crest 10, trough 11 and ripple bar 12, all crests 10, trough 11 and the order arrangement connection of the both ends of ripple bar 12 form ripple ring 1, owned
Connected between ripple ring 1 by dowel 2.The technical scheme of the application improves support knot by the structure design to bioabsorbable stent
Structure reduces postoperative tube chamber Loss Rate, restenosis rate and tube chamber Loss Rate to the support force of blood vessel；During reduction processing and use
Structural stress peak value, reduce the generation of structural damage and local accelerated degradation, reduce expansion fracture, fatigue failure and support knot
The risk that structure moment collapses.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (11)
1. a kind of bioabsorbable stent, including ripple ring and dowel；Characterized in that, the ripple ring includes crest, trough and ripple bar,
Multiple crests, multiple ripple bars and multiple troughs join end to end respectively；Divide between two relative ripple rings
Do not connected by least one dowel.
2. bioabsorbable stent according to claim 1, it is characterised in that between the crest and the trough of the ripple ring
Every arrangement, and connected by the ripple bar.
3. bioabsorbable stent according to claim 1, it is characterised in that the intrados of the crest is in seamlessly transit, lack
Make a slip of the tongue and cross and the one or more in bulge transition；The intrados of the trough in seamlessly transit, breach transition and bulge transition
In one or more；
And/or the extrados of the crest is in seamlessly transit and the one or more in bulge transition；The extrados of the trough
In seamlessly transitting and the one or more in bulge transition.
4. bioabsorbable stent according to claim 1, it is characterised in that the crest includes solid crest and middle hollow out
One or more in crest；The trough includes the one or more in solid trough and middle hollow out trough.
5. according to the bioabsorbable stent described in claim any one of 1-4, it is characterised in that the ripple bar width center line
It is linear, sine and cosine is linear, the one or more in two-fold linear and lightning shape.
6. bioabsorbable stent according to claim 5, it is characterised in that the ripple bar include the consistent straight rod member of width,
Intermediate width is less than the one or more in the rod member and hollow rods of both ends width.
7. bioabsorbable stent according to claim 5, it is characterised in that the both ends of the ripple bar respectively with the crest and
The trough integrally cutting, braiding, welding, splicing or colligation connection.
8. according to the bioabsorbable stent described in claim any one of 1-4, it is characterised in that the dowel includes direct-connected connect
One or more in the connecting rod that the oval connecting rod in bar, middle part and middle part assume diamond in shape.
9. bioabsorbable stent according to claim 8, it is characterised in that the dowel is connected to relative two ripples
Between the crest and crest of ring, between trough and trough, between crest and ripple bar, between trough and ripple bar, crest and trough it
Between, between ripple bar and ripple bar in one or more.
10. bioabsorbable stent according to claim 8, it is characterised in that the dowel both ends pass through integral cutting, volume
Knit, weld, being glued or colligation is connected with the adjacent ripple ring.
11. according to the bioabsorbable stent described in claim any one of 1-4, it is characterised in that the crest, the trough, institute
The material for stating ripple bar and the dowel is the one or more in PLA, magnesium alloy and ferroalloy.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710786065.7A CN107569299B (en) | 2017-09-04 | 2017-09-04 | Absorbable support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710786065.7A CN107569299B (en) | 2017-09-04 | 2017-09-04 | Absorbable support |
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| CN107569299B CN107569299B (en) | 2022-02-22 |
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| CN201710786065.7A Active CN107569299B (en) | 2017-09-04 | 2017-09-04 | Absorbable support |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113648113A (en) * | 2021-08-18 | 2021-11-16 | 上海禾吟企业管理咨询中心 | Degradable support |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1923154A (en) * | 2006-09-13 | 2007-03-07 | 东南大学 | Blood vessel support bracket with little tissue prolapsus after implantation |
| CN101951860A (en) * | 2007-12-19 | 2011-01-19 | 伊西康公司 | Have make in abutting connection with the sacculus of the interconnective simple stress concentration zones of strut is distensible can biological absorption support |
| CN102307548A (en) * | 2009-02-09 | 2012-01-04 | 埃芙锡欧医疗器械Ulc | Stent |
| US20120004719A1 (en) * | 2005-10-31 | 2012-01-05 | Boston Scientific Scimed, Inc. | Stent Configurations |
| US20140330361A1 (en) * | 2012-08-13 | 2014-11-06 | Abbott Cardiovascular Systems Inc. | Segmented scaffold designs |
| US20150039075A1 (en) * | 2013-08-01 | 2015-02-05 | Abbott Cardiovascular Systems Inc. | Variable stiffness stent |
| CN204411039U (en) * | 2014-12-19 | 2015-06-24 | 上海百心安生物技术有限公司 | A kind of Absorbable rod intraluminal stent |
| CN106726037A (en) * | 2017-01-04 | 2017-05-31 | 北京航空航天大学 | A kind of PLA base intravascular stent that can uniformly degrade |
-
2017
- 2017-09-04 CN CN201710786065.7A patent/CN107569299B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120004719A1 (en) * | 2005-10-31 | 2012-01-05 | Boston Scientific Scimed, Inc. | Stent Configurations |
| CN1923154A (en) * | 2006-09-13 | 2007-03-07 | 东南大学 | Blood vessel support bracket with little tissue prolapsus after implantation |
| CN101951860A (en) * | 2007-12-19 | 2011-01-19 | 伊西康公司 | Have make in abutting connection with the sacculus of the interconnective simple stress concentration zones of strut is distensible can biological absorption support |
| CN102307548A (en) * | 2009-02-09 | 2012-01-04 | 埃芙锡欧医疗器械Ulc | Stent |
| US20140330361A1 (en) * | 2012-08-13 | 2014-11-06 | Abbott Cardiovascular Systems Inc. | Segmented scaffold designs |
| US20150039075A1 (en) * | 2013-08-01 | 2015-02-05 | Abbott Cardiovascular Systems Inc. | Variable stiffness stent |
| CN204411039U (en) * | 2014-12-19 | 2015-06-24 | 上海百心安生物技术有限公司 | A kind of Absorbable rod intraluminal stent |
| CN106726037A (en) * | 2017-01-04 | 2017-05-31 | 北京航空航天大学 | A kind of PLA base intravascular stent that can uniformly degrade |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113648113A (en) * | 2021-08-18 | 2021-11-16 | 上海禾吟企业管理咨询中心 | Degradable support |
| CN113648113B (en) * | 2021-08-18 | 2024-02-02 | 南京友德邦医疗科技有限公司 | Degradable support |
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| Publication number | Publication date |
|---|---|
| CN107569299B (en) | 2022-02-22 |
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