CN203122690U - Vertebral artery support - Google Patents
Vertebral artery support Download PDFInfo
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- CN203122690U CN203122690U CN 201320080240 CN201320080240U CN203122690U CN 203122690 U CN203122690 U CN 203122690U CN 201320080240 CN201320080240 CN 201320080240 CN 201320080240 U CN201320080240 U CN 201320080240U CN 203122690 U CN203122690 U CN 203122690U
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- vertebral artery
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Abstract
The utility model discloses a vertebral artery support. The vertebral artery support comprises multiple groups of annular supporting units (10) arranged along the same central axis and connecting units (20) connected between every two adjacent groups of supporting units (10), wherein circumferential unfolding structures of the supporting units (10) are corrugated structures, every two adjacent groups of supporting units (10) are arranged in a mirror symmetry mode, a plurality of adjacent wave shape peak pairs are arranged between every two adjacent groups of supporting units (10), and each of connecting units (20) is connected between every two centered wave shape peaks of wave shape peaks. By means of the vertebral artery support, the re-stenosis rate of vertebral artery blood vessels can be reduced, and the stenosis treatment effect of the starting portion of the vertebral artery can be improved.
Description
Technical field
This utility model relates to the arterial bracket field, in particular to a kind of vertebral artery support.
Background technology
Domestic and international many research has confirmed that atherosclerosis is the main cause that causes the outer angiostenosis of intracranial, and wherein the vertebral artery initial part is narrow and inaccessible accounts for 30.05%.At present, by vascular treatment, can rebuild the lesion vessels structure, recover cerebral tissue and normally pour into, prevent that microemboli from coming off, can play the effect that the prevention ischemic event takes place.In clinical practice, owing to still there is not the narrow special stand of vertebral artery initial part both at home and abroad, therefore, the support overwhelming majority of using in the vertebral artery initial part mainly contains bare bracket, arteria coronaria medicament elution and coating bracket as the balloon expandable stent of renal artery or coronary stenosis design.
There is not special-purpose support to be used for the treatment of vertebral artery initial part stenotic lesion in the world, adopt renal artery stent or cardiac stent with the initial narrow support for the treatment of vertebral artery clinically more, because of above-mentioned support at blood vessel different in anatomy and histologic characteristics with vertebral artery initial part blood vessel, so the stent in the treatment effect of vertebral artery narrowing is not good enough in the clinical practice.
At present in the support of the renal artery that uses at vertebral artery narrowing or arteria coronaria, be mainly balloon expandable stent, wherein the initial narrow curative effect of bare bracket treatment vertebral artery is not good enough, and the stent forming postoperative restenosis is 30%～50%; There is the part scholar to adopt arteria coronaria bracket for eluting medicament or coating stent of medicine treatment vertebral artery initial part narrow in the recent period, postoperative restenosis has reduction trend, but because the design of coronary artery bracket is not at the initial special anatomy of vertebral artery and histological characteristic, so curative effect is still not good enough.
The utility model content
This utility model aims to provide a kind of vertebral artery support, can reduce the restenosis rate of vertebral artery blood vessel, improves the narrow therapeutic effect of vertebral artery initial part.
To achieve these goals, according to this utility model, a kind of vertebral artery support is provided, this vertebral artery support comprises the support unit of many groups annular of arranging along same central axis and is connected linkage unit between the two adjacent groups support unit, the circumferentially deploying structure of support unit is corrugated structure, two adjacent groups support unit mirror image symmetric arrangement, and it is right to have mutually close a plurality of waveforms summit between the two adjacent groups support unit, and linkage unit is connected between two waveform summits of each waveform summit centering.
Further, the circumferentially deploying structure of support unit is sine curve.
Further, linkage unit comprises a plurality of bending parts, and bending part is corrugated along central axis.
Further, the corrugated of bending part is sine curve.
Further, the connecting portion of bending part and two adjacent groups support unit is in the vertex position place of bending part, and bending part length is a half-wavelength.
Further, the two ends of bending part are connected respectively to the both sides of the right centrage in corresponding waveform summit, and being centered close on the centrage of bending part.
Further, the external diameter of support unit is 1.623 ± 0.005mm, and wall thickness is 0.12 ± 0.01mm, and the width of corrugated structure is 0.11mm.
Further, the vertebral artery support also comprises base coat and biodegradation medication coat, and wherein, base coat is coated on the outer surface of support unit and linkage unit, and the biodegradation medication coat is coated on the outer surface of base coat.
Use the technical solution of the utility model, the vertebral artery support comprises the support unit of many groups annular of arranging along same central axis and is connected linkage unit between the two adjacent groups support unit, the circumferentially deploying structure of support unit is corrugated structure, two adjacent groups support unit mirror image symmetric arrangement, and it is right to have mutually close a plurality of waveforms summit between the two adjacent groups support unit, and linkage unit connects between two waveform summits of each waveform summit centering.According to this utility model, this vertebral artery support comprises support unit and linkage unit, by performing the operation after this support implantation vertebral artery, support unit can effectively prevent the vertebral artery generation restenosis of pathological changes, the support unit of corrugated structure is along same axis arranged, also effectively reduce vertebrarterial load when having guaranteed the Area of bearing of support, linkage unit is arranged between two waveform summits of each mutually close waveform summit centering, not only can play the effect that connects support unit, also improved vertebrarterial support effect simultaneously, and then effectively prevented vertebrarterial restenosis.
Description of drawings
The accompanying drawing that constitutes a part of the present utility model is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining this utility model, do not constitute improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the circumferentially deploying figure according to vertebral artery support of the present utility model.
The specific embodiment
Hereinafter will describe this utility model with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Bending direction when the arrow among Fig. 1 represents that vertebral artery support of the present utility model is converted to stereochemical structure.
Referring to shown in Figure 1, according to embodiment of the present utility model, the vertebral artery support comprises the support unit 10 of many groups annular of arranging along same central axis and is connected linkage unit 20 between the two adjacent groups support unit 10, the circumferentially deploying structure of support unit 10 is corrugated structure, two adjacent groups support unit 10 mirror image symmetric arrangement, and it is right to have mutually close a plurality of waveforms summit between the two adjacent groups support unit 10, and linkage unit 20 is connected between two waveform summits of each waveform summit centering.
In practical operation, by performing the operation after this support implantation vertebral artery, support unit 10 can effectively prevent the vertebral artery generation restenosis of pathological changes, the support unit 10 of corrugated structure arranges successively along same axis, also effectively reduces vertebrarterial load when having guaranteed the Area of bearing of support.Linkage unit 20 is arranged between two waveform summits of each waveform summit centering of adjacent supports unit 10, not only can play the effect that connects support unit 10, has improved simultaneously vertebrarterial support effect.Between two waveform summits of each mutually close waveform summit centering of two groups of adjacent support units 10, all be furnished with linkage unit 20 and then strengthened entire bracket to vertebrarterial supporting role, further reduced vertebrarterial restenosis rate.
Preferably, the vertebral artery support is to be 1.6mm by external diameter, and wall thickness is the immortal steel pipe 316L(AISI standard of 0.16mm) on carve and make.Shape behind the engraving is referring to shown in Figure 1, and wherein, the dimensional tolerance among the figure is: size〉1mm, tolerance＜0.1mm; Size＜1mm, tolerance＜0.01mm.Behind electrobrightening, the external diameter of vertebral artery support is 1.623 ± 0.005mm, and wall thickness is 0.12 ± 0.01mm, and the width of corrugated structure is 0.11mm in the support unit 10, the supporting structure of Xing Chenging can effectively reduce the shearing force in the vertebral artery like this, thereby prevents vertebrarterial restenosis.In the present embodiment, the circumferentially deploying structure of support unit 10 is sine curve or cosine curve.The even structure of sine curve or cosine curve realizes easily, to vertebrarterial support force also relatively evenly, effectively prevents the generation of the local restenosis phenomenon of vertebral artery.
Linkage unit 20 comprises a plurality of bending parts 21, and bending part 21 is corrugated along the central axial direction of support.Corrugated bending part 21 can increase it to vertebrarterial supporting role, and has elastic performance preferably, have enough elastic deformations in the time of can guaranteeing vertebral artery supported, can the vertebral artery support correspondingly be deformed according to vertebrarterial structure, can not cause adverse effect to vertebrarterial function.Preferably, the connecting portion of bending part 21 and two adjacent groups support unit 10 is in the vertex position place of bending part 21, and bending part 21 length are half-wavelength, i.e. a 10.55mm.Like this, make entire bracket axially have good ductility at it.Preferably, the two ends of bending part 21 are connected respectively to the both sides of the right centrage in respective waveforms summit, and being centered close on the centrage of bending part 21, wherein, the width of bending part 21 is 0.1mm, and such structure is well-balanced, stability is higher relatively, after support unit 10 is connected, can effectively eliminate the shearing force that vertebral artery inside is subjected to, reduce vertebrarterial restenosis rate.
According to embodiment of the present utility model, the vertebral artery support also comprises base coat and biodegradation medication coat (not shown), base coat is coated on the outer surface of support unit 10 and linkage unit 20, and the biodegradation medication coat is coated on the outer surface of base coat.The base coat of present embodiment comprises falls poly-first n-butyl acrylate (PBuMA) macromolecule, and it has excellent biological compatibility, and the complete performance of base coat is convenient to covering and the wound healing of epithelial cell on support.The biodegradation medication coat comprises polylactic acid-glycolic guanidine-acetic acid (PLGA) and rapamycin (Rapamycin), wherein the polylactic acid-glycolic guanidine-acetic acid has excellent biological compatibility and biological degradability, can realize degrading fully in human body, its final metabolite is CO
2, H
2Small-molecule substances such as O can excrete by metabolism.Rapamycin has very strong anti-hypertrophy, antiallergic, anticoagulant, antiinflammatory and immunosuppressive action, can effectively suppress hypertrophy and the migration of smooth muscle cell.After the support of present embodiment was inserted human body, medicine was concentrated to act on diseased region in the diseased region slow release, suppresses the hypertrophy of vascular endothelial cell.Therefore, vertebral artery support of the present utility model can provide enough medicine concentration to local organization, can avoid the systemic adverse reactions that causes because blood concentration is too high again, thereby reduces the vertebral artery postoperative restenosis, improves therapeutic effect.
When using vertebral artery support of the present utility model, at first it is compressed to quick exchange foley's tube induction system (not shown), the effective length that exchanges the foley's tube induction system fast is 145mm.Vertebral artery support of the present utility model has two development point (not shown)s that are positioned on the sacculus pipe, can accurately indicate the position of support under X-ray, helps the support location and checks the length that support is opened.Fast the exchange balloon catheter proximal end has two labellings (being respectively 93 centimetres and 103 centimetres apart from the conduit distal-most end), and during in order to the different puncture situation with upper arm artery of definite femoral artery, dilating catheter is with respect to the position of guiding catheter front end.Be positioned at quick exchange foley's tube front end and also be provided with seal wire, the seal wire outlet is 24 centimetres apart from the distal-most end that exchanges foley's tube fast.But system's adapted minimum diameter is that guiding catheter and the maximum outside diameter of 1.42 millimeters (5Fr/0.056 inches) is the seal wire of 0.36 millimeter (0.014 inch).
From above description, as can be seen, this utility model the above embodiments have realized following technique effect: the vertebral artery support comprises the support unit of many groups annular of arranging along same central axis and is connected linkage unit between the two adjacent groups support unit, the circumferentially deploying structure of support unit is corrugated structure, two adjacent groups support unit mirror image symmetric arrangement, and it is right to have mutually close a plurality of waveforms summit between the two adjacent groups support unit, and linkage unit connects between two waveform summits of each waveform summit centering.According to vertebral artery support of the present utility model, this support comprises support unit and linkage unit, by performing the operation after this support implantation vertebral artery, support unit can effectively prevent the vertebral artery generation restenosis of pathological changes, the support unit of corrugated structure is along same axis arranged, also effectively reduce vertebrarterial load when having guaranteed the Area of bearing of support, linkage unit is arranged between the mutually close waveform summit of adjacent supports unit, not only can play the effect that connects support unit, improved simultaneously vertebrarterial support effect, all be furnished with linkage unit leaning on mutually of two groups of adjacent support units between the waveform summit of warp and then strengthened entire bracket to vertebrarterial supporting role, further reduced vertebrarterial restenosis rate.The vertebral artery support also comprises base coat and biodegradation medication coat, can provide enough medicine concentration to local organization, can avoid the systemic adverse reactions that causes because blood concentration is too high again, thereby reduce restenosis behind the stenting of the initial position of vertebral artery, improve therapeutic effect.
The above is preferred embodiment of the present utility model only, is not limited to this utility model, and for a person skilled in the art, this utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. vertebral artery support, it is characterized in that, comprise the support unit (10) of many groups annular of arranging along same central axis and be connected linkage unit (20) between the described support unit of two adjacent groups (10), the circumferentially deploying structure of described support unit (10) is corrugated structure, the described support unit of two adjacent groups (10) mirror image symmetric arrangement, and it is right to have mutually close a plurality of waveforms summit between the described support unit of two adjacent groups (10), and described linkage unit (20) is connected between two waveform summits of each described waveform summit centering.
2. vertebral artery support according to claim 1 is characterized in that, the circumferentially deploying structure of described support unit (10) is sine curve.
3. vertebral artery support according to claim 1 is characterized in that, described linkage unit (20) comprises a plurality of bending parts (21), and described bending part (21) is corrugated along described central axis.
4. vertebral artery support according to claim 3 is characterized in that, the corrugated of described bending part (21) is sine curve.
5. according to claim 3 or 4 described vertebral artery supports, it is characterized in that, the connecting portion of described bending part (21) and the described support unit of two adjacent groups (10) is in the vertex position place of described bending part (21), and described bending part (21) length is a half-wavelength.
6. vertebral artery support according to claim 5 is characterized in that, the two ends of described bending part (21) are connected respectively to the both sides of the right centrage in corresponding described waveform summit, and being centered close on the described centrage of described bending part (21).
7. according to each described vertebral artery support in the claim 1 to 4, it is characterized in that the external diameter of described support unit (10) is 1.623 ± 0.005mm, wall thickness is 0.12 ± 0.01mm, and the width of described corrugated structure is 0.11mm.
8. vertebral artery support according to claim 1 is characterized in that, also comprises: base coat is coated on the outer surface of described support unit (10) and described linkage unit (20); The biodegradation medication coat is coated on the outer surface of described base coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320080240 CN203122690U (en) | 2013-02-21 | 2013-02-21 | Vertebral artery support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320080240 CN203122690U (en) | 2013-02-21 | 2013-02-21 | Vertebral artery support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203122690U true CN203122690U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320080240 Expired - Fee Related CN203122690U (en) | 2013-02-21 | 2013-02-21 | Vertebral artery support |
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| CN (1) | CN203122690U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691647A (en) * | 2015-07-20 | 2017-05-24 | 上海交通大学 | Biodegradable metal intravascular stent and application thereof |
| CN107049571A (en) * | 2017-05-12 | 2017-08-18 | 微创神通医疗科技（上海）有限公司 | A kind of vertebral artery stent and preparation method thereof |
| WO2018188059A1 (en) * | 2017-04-14 | 2018-10-18 | 深圳市方鹏科技有限公司 | Blockage-proof inner core of fuel pipe of intelligent car |
-
2013
- 2013-02-21 CN CN 201320080240 patent/CN203122690U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691647A (en) * | 2015-07-20 | 2017-05-24 | 上海交通大学 | Biodegradable metal intravascular stent and application thereof |
| CN106691647B (en) * | 2015-07-20 | 2019-05-24 | 上海交通大学 | A kind of biodegradable metals intravascular stent and its application |
| WO2018188059A1 (en) * | 2017-04-14 | 2018-10-18 | 深圳市方鹏科技有限公司 | Blockage-proof inner core of fuel pipe of intelligent car |
| CN107049571A (en) * | 2017-05-12 | 2017-08-18 | 微创神通医疗科技（上海）有限公司 | A kind of vertebral artery stent and preparation method thereof |
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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: 20130814 Termination date: 20190221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |