CN203790082U - Film-coated intravascular stent - Google Patents
Film-coated intravascular stent Download PDFInfo
- Publication number
- CN203790082U CN203790082U CN201320887884.8U CN201320887884U CN203790082U CN 203790082 U CN203790082 U CN 203790082U CN 201320887884 U CN201320887884 U CN 201320887884U CN 203790082 U CN203790082 U CN 203790082U
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- China
- Prior art keywords
- intravascular stent
- overlay film
- film type
- layer
- high polymer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a film-coated intravascular stent which comprises a bare stent body. A braided fabric layer soaked by liquid medicine is arranged outside the bare stent body. A degradable high-molecular polymer film-coated layer is arranged outside the braided fabric layer. A composite medicine coating is arranged outside the degradable high-molecular polymer film-coated layer. In this way, the film-coated intravascular stent is simple and reasonable in structure, capable of protecting the vascular wall against injury, and high in medicine loading capacity.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of overlay film type intravascular stent.
Background technology
Intravascular stent refers on the basis being shaped at tube chamber balloon expandable, inserts inner support support stenosis occlusion section blood vessel to reach in pathological changes section, reduces blood vessel elasticity retraction and moulding again, keeps the unobstructed object of tube chamber blood flow.Part inner support also has the effect of prevention of restenosis, is mainly divided into coronary artery bracket, cerebrovascular support, renal artery stent, large artery trunks support etc.
Existing intravascular stent is mostly metal mesh opening bare bracket, and what have establishes medication coat on bare bracket surface, but mesh on this metal mesh opening bare bracket can cause certain damage to blood vessel wall, and existing intravascular stent drug loading is little in addition, and therapeutic effect is bad.
Utility model content
The technical problem that this utility model mainly solves is to provide a kind of overlay film type intravascular stent, simple and reasonable, can protect blood vessel wall injury-free, and drug loading is large.
For solving the problems of the technologies described above, the technical scheme that this utility model adopts is: a kind of overlay film type intravascular stent is provided, comprise: bare bracket, described bare bracket outer setting has the braid layer of soaking through medicinal liquid, described braid layer outer setting has degradable high polymer coating layer, and described degradable high polymer coating layer outer setting has combination drug coating.
In preferred embodiment of this utility model, described braid layer adopts polyester fiber to weave and forms.
In preferred embodiment of this utility model, described braid layer adopts Fypro to weave and forms.
In preferred embodiment of this utility model, described degradable high polymer coating layer is polylactic acid coating layer.
In preferred embodiment of this utility model, described combination drug coating comprise be arranged on degradable high polymer coating layer outside interior anti-inflammatory medicaments coating, be arranged on the cell proliferation medication coat of described interior anti-inflammatory medicaments coating outside and be arranged on the outer anti-inflammatory medicaments coating of described cell proliferation medication coat outside.
In preferred embodiment of this utility model, described bare bracket is netted tubular construction, and the mesh on it is shaped as rhombus or regular hexagon.
The beneficial effects of the utility model are: this utility model overlay film type intravascular stent, and simple and reasonable, can protect blood vessel wall injury-free, and drug loading is large.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in this utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the structural representation of this utility model overlay film type intravascular stent one preferred embodiment.
In accompanying drawing, the labelling of each parts is as follows: 1, bare bracket, 2, braid layer, 3, degradable high polymer coating layer, 4, combination drug coating.
Detailed description of the invention
To the technical scheme in this utility model embodiment be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of this utility model protection.
Refer to Fig. 1, this utility model embodiment comprises:
A kind of overlay film type intravascular stent; comprise: bare bracket 1; described bare bracket 1 outer setting has the braid layer 2 of soaking through medicinal liquid; described braid layer 2 adopts the high polymer fiber braiding of difficult degradation to form, and it is coated on the outside of bare bracket 1, plays the effect of protection blood vessel wall; in addition because fabric has certain space; after medicinal liquid soaks, can store a certain amount of medicine, increase drug loading.
Described braid layer 2 outer setting have degradable high polymer coating layer 3, and at the initial stage, the common protective layer that forms of degradable high polymer coating layer 3 and braid layer 2, protects blood vessel not to be subject to the damage of bare bracket.
Described degradable high polymer coating layer 3 outer setting have combination drug coating 4, and described combination drug coating 4 plays good medication effect.
When use; the common protective layer that forms of degradable high polymer coating layer 3 and braid layer 2 at the beginning; protection blood vessel wall; along with combination drug coating 4 is consumed; play initial stage, mid-term medication effect, degradable high polymer coating layer 3 is degraded afterwards, and braid layer 2 continues protection blood vessels; and the medicine in braid layer 2 also starts to discharge, and plays the effect of later stage Drug therapy.
Preferably, described braid layer 2 adopts polyester fiber or Fypro to weave to form.
Preferably, described degradable high polymer coating layer 3 is polylactic acid coating layer.
Described combination drug coating 4 comprise be arranged on degradable high polymer coating layer 3 outsides interior anti-inflammatory medicaments coating, be arranged on the cell proliferation medication coat of described interior anti-inflammatory medicaments coating outside and be arranged on the outer anti-inflammatory medicaments coating of described cell proliferation medication coat outside, by the combination of different pharmaceutical, reach the effect of comprehensive treatment.
Described bare bracket 1 is netted tubular construction, and the mesh on it is shaped as rhombus or regular hexagon, and radial support power is large.
This utility model overlay film type intravascular stent, simple and reasonable, can protect blood vessel wall injury-free, and drug loading is large.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes this utility model description to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (6)
1. an overlay film type intravascular stent, it is characterized in that, comprise: bare bracket, described bare bracket outer setting has the braid layer of soaking through medicinal liquid, described braid layer outer setting has degradable high polymer coating layer, and described degradable high polymer coating layer outer setting has combination drug coating.
2. overlay film type intravascular stent according to claim 1, is characterized in that, described braid layer adopts polyester fiber to weave and forms.
3. overlay film type intravascular stent according to claim 1, is characterized in that, described braid layer adopts Fypro to weave and forms.
4. overlay film type intravascular stent according to claim 1, is characterized in that, described degradable high polymer coating layer is polylactic acid coating layer.
5. overlay film type intravascular stent according to claim 1, it is characterized in that, described combination drug coating comprise be arranged on degradable high polymer coating layer outside interior anti-inflammatory medicaments coating, be arranged on the cell proliferation medication coat of described interior anti-inflammatory medicaments coating outside and be arranged on the outer anti-inflammatory medicaments coating of described cell proliferation medication coat outside.
6. overlay film type intravascular stent according to claim 1, is characterized in that, described bare bracket is netted tubular construction, and the mesh on it is shaped as rhombus or regular hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320887884.8U CN203790082U (en) | 2013-12-31 | 2013-12-31 | Film-coated intravascular stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320887884.8U CN203790082U (en) | 2013-12-31 | 2013-12-31 | Film-coated intravascular stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203790082U true CN203790082U (en) | 2014-08-27 |
Family
ID=51372363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320887884.8U Expired - Fee Related CN203790082U (en) | 2013-12-31 | 2013-12-31 | Film-coated intravascular stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203790082U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106073942A (en) * | 2015-04-30 | 2016-11-09 | 微创心脉医疗科技（上海）有限公司 | A kind of support and delivery device |
| CN106667621A (en) * | 2017-02-20 | 2017-05-17 | 郭伟 | Novel biological absorbable coated drug carrying stent applied to femoral-popliteal arteries |
| CN107536658A (en) * | 2016-06-28 | 2018-01-05 | 微创心脉医疗科技（上海）有限公司 | Overlay film frame and its manufacture method |
| WO2018090576A1 (en) * | 2016-11-15 | 2018-05-24 | 先健科技(深圳)有限公司 | Flow blocking membrane and implanted medical device |
-
2013
- 2013-12-31 CN CN201320887884.8U patent/CN203790082U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106073942A (en) * | 2015-04-30 | 2016-11-09 | 微创心脉医疗科技（上海）有限公司 | A kind of support and delivery device |
| CN107536658A (en) * | 2016-06-28 | 2018-01-05 | 微创心脉医疗科技（上海）有限公司 | Overlay film frame and its manufacture method |
| WO2018090576A1 (en) * | 2016-11-15 | 2018-05-24 | 先健科技(深圳)有限公司 | Flow blocking membrane and implanted medical device |
| CN108066047A (en) * | 2016-11-15 | 2018-05-25 | 先健科技(深圳)有限公司 | Choked flow film and implanted medical device |
| CN106667621A (en) * | 2017-02-20 | 2017-05-17 | 郭伟 | Novel biological absorbable coated drug carrying stent applied to femoral-popliteal arteries |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |