CN203677324U - High drug-loading-capacity intravascular stent - Google Patents
High drug-loading-capacity intravascular stent Download PDFInfo
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- CN203677324U CN203677324U CN201320855987.6U CN201320855987U CN203677324U CN 203677324 U CN203677324 U CN 203677324U CN 201320855987 U CN201320855987 U CN 201320855987U CN 203677324 U CN203677324 U CN 203677324U
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- intravascular stent
- medicine layer
- medicine
- rod member
- high drug
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Abstract
The utility model discloses a high drug-loading-capacity intravascular stent. The intravascular stent comprises a plurality of orthohexagonal units. An S-shaped structure part is arranged in each orthohexagonal unit which comprises six rods, at least one drug loading groove extending along the length direction is formed in the outer surface of each rod, and drug layers are arranged on the outer surfaces of the rods. The intravascular stent has the advantages of being simple and reasonable in structure, provided with good radial supporting force, large in drug loading amount and capable of preventing easy peeling of the drug layers.
Description
Technical field
This utility model relates to technical field of medical instruments, particularly relates to a kind of high drug load 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 exists radial support power deficiency, the flaky shortcoming of medicine layer.
Utility model content
The technical problem that this utility model mainly solves is to provide a kind of high drug load intravascular stent, simple and reasonable, has good radial support power, also has advantages of that in addition drug loading is large, medicine layer is incrust.
For solving the problems of the technologies described above, the technical scheme that this utility model adopts is: a kind of high drug load intravascular stent is provided, comprise: multiple regular hexagons unit, in each regular hexagon unit, be provided with " S " structural member, described regular hexagon unit comprises six rod members, on the outer surface of described rod member, be provided with the medicine-carrying trough that at least one extends along its length, on the outer surface of described rod member, be provided with medicine layer.
In preferred embodiment of this utility model, the cross section of described rod member is rounded, is provided with three medicine-carrying troughs on the outer surface of described rod member, and described three medicine-carrying troughs are uniformly distributed along the cross section of rod member.
In preferred embodiment of this utility model, described medicine layer comprises the interior medicine layer that is arranged on rod member outer surface and is arranged on the upper outside medicine layer of described interior medicine layer outer surface, and described interior medicine layer part is entrenched in described medicine-carrying trough.
In preferred embodiment of this utility model, described interior medicine layer is cell proliferation medicine layer, and described outer medicine layer is anti-inflammatory medicaments layer.
In preferred embodiment of this utility model, described intravascular stent adopts Nitinol to make.
The beneficial effects of the utility model are: this utility model high drug load intravascular stent, and simple and reasonable, there is good radial support power, also have advantages of that in addition drug loading is large, medicine layer is incrust.
Accompanying drawing explanation
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 skills, 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 planar structure schematic diagram after this utility model high drug load intravascular stent launches;
Fig. 2 is the schematic cross-section of rod member in Fig. 1.
In accompanying drawing, the labelling of each parts is as follows: 1, regular hexagon unit, 2, " S " structural member, 3, rod member, 4, medicine-carrying trough, 5, interior medicine layer, 6, outer medicine layer.
The specific embodiment
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, rather than whole embodiment.Based on the embodiment in this utility model, those of ordinary skills 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 and Fig. 2, this utility model embodiment comprises:
A kind of high drug load intravascular stent, comprising: multiple regular hexagons unit 1, in each regular hexagon unit 1, be provided with " S " structural member 2, and this structure makes the utlity model has preferably radial support power, thereby has guaranteed preferably therapeutic effect.
Described regular hexagon unit 1 comprises six rod members 3, on the outer surface of described rod member 3, be provided with the medicine-carrying trough 4 that at least one extends along its length, on the outer surface of described rod member 3, be provided with medicine layer, arranging of described medicine-carrying trough 4 is on the one hand the drug loading that has increased support, strengthened on the other hand the bond strength between medicine layer and support.
The cross section of described rod member 3 is rounded, is provided with three medicine-carrying troughs 4 on the outer surface of described rod member 3, and described three medicine-carrying troughs 4 are uniformly distributed along the cross section of rod member.
Described medicine layer comprises the interior medicine layer 5 being arranged on rod member 3 outer surfaces and is arranged on the upper outside medicine layer 6 of described interior medicine layer 5 outer surface, and described interior medicine layer 5 parts are entrenched in described medicine-carrying trough 4, and bond strength is high.
Described interior medicine layer 5 is cell proliferation medicine layer, and described outer medicine layer 6 is anti-inflammatory medicaments layer, and described interior medicine layer 5 and outer medicine layer 6 adopt different pharmaceutical, reach comprehensive therapeutic effect.
Preferably, described intravascular stent adopts Nitinol to make.
This utility model high drug load intravascular stent, simple and reasonable, there is good radial support power, also have advantages of that in addition drug loading is large, medicine layer is incrust.
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 (5)
1. a high drug load intravascular stent, it is characterized in that, comprise: multiple regular hexagons unit, in each regular hexagon unit, be provided with " S " structural member, described regular hexagon unit comprises six rod members, on the outer surface of described rod member, be provided with the medicine-carrying trough that at least one extends along its length, on the outer surface of described rod member, be provided with medicine layer.
2. high drug load intravascular stent according to claim 1, is characterized in that, the cross section of described rod member is rounded, is provided with three medicine-carrying troughs on the outer surface of described rod member, and described three medicine-carrying troughs are uniformly distributed along the cross section of rod member.
3. high drug load intravascular stent according to claim 1, it is characterized in that, described medicine layer comprises the interior medicine layer that is arranged on rod member outer surface and is arranged on the upper outside medicine layer of described interior medicine layer outer surface, and described interior medicine layer part is entrenched in described medicine-carrying trough.
4. high drug load intravascular stent according to claim 3, is characterized in that, described interior medicine layer is cell proliferation medicine layer, and described outer medicine layer is anti-inflammatory medicaments layer.
5. high drug load intravascular stent according to claim 1, is characterized in that, described intravascular stent adopts Nitinol to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320855987.6U CN203677324U (en) | 2013-12-24 | 2013-12-24 | High drug-loading-capacity intravascular stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320855987.6U CN203677324U (en) | 2013-12-24 | 2013-12-24 | High drug-loading-capacity intravascular stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203677324U true CN203677324U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320855987.6U Expired - Fee Related CN203677324U (en) | 2013-12-24 | 2013-12-24 | High drug-loading-capacity intravascular stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203677324U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691598A (en) * | 2017-02-06 | 2017-05-24 | 浙江荣诚医疗科技有限公司 | Gold mark with coating and coating location device |
| WO2020228629A1 (en) * | 2019-05-10 | 2020-11-19 | 上海微创医疗器械（集团）有限公司 | Degradable drug-loaded stent and manufacturing method therefor |
-
2013
- 2013-12-24 CN CN201320855987.6U patent/CN203677324U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691598A (en) * | 2017-02-06 | 2017-05-24 | 浙江荣诚医疗科技有限公司 | Gold mark with coating and coating location device |
| WO2020228629A1 (en) * | 2019-05-10 | 2020-11-19 | 上海微创医疗器械（集团）有限公司 | Degradable drug-loaded stent and manufacturing method therefor |
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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: 20140702 Termination date: 20151224 |
|
| EXPY | Termination of patent right or utility model |