CN203408130U - Self-expansion carotid artery covered stent - Google Patents
Self-expansion carotid artery covered stent Download PDFInfo
- Publication number
- CN203408130U CN203408130U CN201320490708.0U CN201320490708U CN203408130U CN 203408130 U CN203408130 U CN 203408130U CN 201320490708 U CN201320490708 U CN 201320490708U CN 203408130 U CN203408130 U CN 203408130U
- Authority
- CN
- China
- Prior art keywords
- carotid artery
- self
- ring
- overlay film
- film frame
- Prior art date
- 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
Links
Images
Landscapes
- Prostheses (AREA)
Abstract
The utility model discloses a self-expansion carotid artery covered stent, which comprises an intermediate composed of a plurality of central corrugated rings, wherein two rows of axial adjacent central corrugated rings are arranged in mirror symmetry, and connected through intermediate short tendons; two ends of the intermediate are respectively provided with end corrugated rings; the wave troughs of the end corrugated rings are connected with the peaks of the central corrugated rings through the end short tendons, and contacts are formed on the peaks of the end corrugated rings; a biological film covers the intermediate. The self-expansion carotid artery covered stent disclosed by the utility model is high in flexibility and easy to successfully reach a diseased region after passing through a bent cavity organ, has great radial support force and precise positioning capacity after being released, and solves the problem of re-blockage caused by detachment of thrombus.
Description
Technical field
This utility model relates to a kind of medical apparatus, particularly a kind of self-expansion type carotid artery overlay film frame.
Background technology
Apoplexy is the second largest reason of mankind's death, and is the greatest factor that the mankind are disabled.Wherein, more than 80% apoplexy is Ischemic Stroke, and approximately 20%～30% Ischemic Stroke is all caused by carotid artery stenosis.A large amount of clinical researches show, carotid artery stenosis and apoplexy there is higher dependency.Endarterectomy (Carotid Endarterectomy, CEA) was once considered to treat the goldstandard of carotid artery stenosis.Along with developing rapidly of Wicresoft's interventional technique, carotid stents art (Carotid Angioplasty and Stenting, CAS) also becomes the safe and effective means for the treatment of carotid artery stenosis, has outstanding performance especially in the high risk patient for the treatment of.Carotid stents is cited as one of ten large great medical device technologies that affect human health industry in 2005, is fastest-rising product in current blood vessel intervention apparatus.At present, timbering material mainly be take 316L medical stainless steel as main, but due to the limitation of stainless deformability and elastic range, the super marmem that plays of NiTi has progressively substituted rustless steel, in the large scale official jargons such as carotid artery, biliary tract and esophagus, is widely used.Early stage nick-eltitanium alloy stent is to be formed by nitinol alloy wire braiding, and the axial cripetura rate of its support of this braided support, more than 30%, causes support to discharge precision not high, and the adherent poor performance of support, affects therapeutic effect.At present carotid stents on the market all coordinates filter umbrella to filter the thrombosis coming off to prevent from again stopping up when operation.
At present, started to adopt the Nitinol tubular stent of laser engraving abroad, because the advantages such as its good biocompatibility, corrosion resistance, shape memory characteristic and easy conveying have obtained more and more wider application.Domestic existing Nitinol engraving support has: tubular bracket and self-expansion type carotid stents for self expansive stand, human vas and hollow organ.
The course of conveying more complicated of " self expansive stand " wherein, and overall performance is poor, and larger to vascular damaged." human vas and hollow organ tubular bracket " is to adopt the method for NiTi net soil weld to make, and makes the overall performance of support and compliance poor, and this kind of support do not have corresponding anti-displacement design." self-expansion type carotid blood vessel support " adopted the configuration design of Palmaz-Schatz coronary stent, and the compliance of support is poor, lacks too anti-displacement design.Above drawbacks limit the application of nick-eltitanium alloy stent in the official jargons such as carotid artery.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of self-expansion type carotid artery overlay film frame; This carotid artery overlay film frame has high-flexibility, is easy to arrive smoothly diseased region by crooked official jargon, has larger radial support power and accurate stationkeeping ability after release, and has solved thrombosis and come off and cause the problem of again stopping up.
For solving the problems of the technologies described above, this utility model adopts following technical proposals:
A carotid artery overlay film frame, described carotid artery overlay film frame comprises by some middle parts corrugated ring arranges the intermediate forming;
Axially between two adjacent row middle part corrugated rings, be mirror symmetry setting, and by the short muscle of intermediate, be connected between axial two adjacent row middle part corrugated rings;
Described intermediate both ends are provided with respectively end corrugation ring; The trough of described end corrugation ring is connected with described middle part corrugated ring crest by the short muscle in end, and the crest of described end corrugation ring is provided with feeler; This tactile perception is to guarantee accurately locating in official jargon, not being subjected to displacement of support, is convenient to the operation in operation process.
On described intermediate, be covered with biofilm; This biofilm had both prevented the exposed of metal support surface, again shutoff the inner membrance of lesion vessels breakage, effectively reduced hematoblastic gathering, sticked the formation with thrombosis, can anti-tampon after support expansion come off to cause again and stop up; Avoid again support to being absorbed in blood vessel wall simultaneously, reduced the stimulation of Liao Dui inner membrance undertissue, limited smooth muscle growing into along support gap.
Further, the peak separation of described end corrugation ring is the twice of middle part corrugated ring peak separation.The object of design is like this, improves the compliance of support and the concordance of excellent official jargon, and has prevented that support from beating in dispose procedure, has improved positional accuracy.
Further, the crest distance of two the middle part corrugated rings in interval between the short muscle of intermediate.The object of design is like this, reduces the cripetura rate of support.
Further, be often separated by the described end corrugation ring crest of two end corrugation rings is provided with a feeler.Object is in order to make bracket end ring every a feeler of 120 degree designs, when meeting location needs, to have reduced unnecessary unnecessary feeler.
Further, the length of described feeler is that 0.5mm is to 1mm.
Further, the material of described middle part corrugated ring, the short muscle of intermediate, end corrugation ring, the short muscle in end and feeler is Nickel-titanium alloy for medical purpose.
Further, described end corrugation ring integral body is bell mouth shape structure.
End corrugation ring integral body is bell mouth shape structure, and end corrugation ring and feeler outwards part a little as a whole; The object of design is to guarantee that support feeler in dispose procedure preferentially contacts the effect that official jargon plays Primary Location like this, and then end corrugation loop contacts official jargon plays the effect of location again, makes support in official jargon, be difficult for being subjected to displacement.
Operation principle of the present utility model is:
Utilize the super bullet shape memory of Nitinol, use carrier that support is delivered to diseased region, after carrier is released, can open by self-expansion.The design adopts the intermediate consisting of the arrangement of some middle parts corrugated ring as main support bar, to reach the requirement of support to support performance; Wherein with the short muscle of intermediate, the middle part corrugated ring of two crests of being separated by is connected, meet the requirement of compliance; The peak separation of the end corrugation ring that intermediate both ends are set is the twice of middle part corrugated ring peak separation, and the crest of two the end corrugation rings of being often separated by end corrugation ring is provided with a feeler, end corrugation ring and feeler are outwards integrated and part a little, guarantee not being subjected to displacement in official jargon of support.
Adopt laser engraving and heat-treating methods that support is finally had the following advantages: 1, to there is self-expanding function; 2, radial support is good; 3, compliance is good; 4, be easy to put into carrier; 5, positioning precision is high.After support heat treatment at its surface coverage one deck biofilm, support thrombosis after arriving lesion expansion can not come off, avoid causing again and stop up, and adopt this utility model to filter umbrella and reach anti-tampon and come off to cause and again stop up, reduced difficulty and the expense of operation.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is that the overall structure of intermediate in this utility model is launched schematic diagram.
Fig. 3 is that the overall structure of right-hand end corrugated ring in this utility model is launched schematic diagram.
Fig. 4 is that the syndeton of intermediate and end corrugation ring in this utility model is launched one of schematic diagram.
Fig. 5 is that the syndeton of intermediate and end corrugation ring in this utility model is launched two of schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described.
As shown in Fig. 1 to 5, a kind of self-expansion type carotid artery overlay film frame, described carotid artery overlay film frame comprises by some middle parts corrugated ring 1 arranges the intermediate forming; Axially between two adjacent row middle part corrugated rings 1, be mirror symmetry setting, and by the short muscle 11 of intermediate, be connected between axial two adjacent row middle part corrugated rings 1; The crest distance of two the middle part corrugated rings 1 in interval between the short muscle 11 of intermediate.
Described intermediate both ends are provided with respectively the end corrugation ring 2 that is bell mouth shape structure; The peak separation of described end corrugation ring 2 is the twice of middle part corrugated ring 1 peak separation.The trough of described end corrugation ring 2 is connected with described middle part corrugated ring 1 crest by the short muscle 21 in end, and the crest of two the end corrugation rings of being often separated by described end corrugation ring 2 is provided with a feeler 3; The length of this feeler 3 is that 0.5mm is to 1mm.
On described intermediate, be covered with biofilm 4; This biofilm 4 can anti-tampon after support expansion comes off to cause again and stops up.
The material of described middle part corrugated ring 1, the short muscle 11 of intermediate, end corrugation ring 2, the short muscle 21 in end and feeler 3 is Nickel-titanium alloy for medical purpose.
During actual use, carrier is delivered to diseased region self-expansion type carotid artery overlay film frame, after carrier is released, can open by self-expansion; The intermediate consisting of 1 arrangement of some middle parts corrugated ring is as main support bar, to reach the requirement of support to support performance; Wherein with the short muscle 11 of intermediate, the middle part corrugated ring of two crests of being separated by 1 is connected, meet the requirement of compliance; The peak separation of the end corrugation ring 2 that intermediate both ends are set is twices of middle part corrugated ring 1 peak separation, and the crest of two the end corrugation rings 2 of being often separated by end corrugation ring 2 is provided with a feeler 3, end corrugation ring 2 and feeler 3 are outwards integrated and part a little, guarantee not being subjected to displacement in official jargon of support.
The word in the description orientation that adopted herein " on ", D score, " left side ", " right side " etc. are all convenience in order to illustrate based on the orientation shown in drawing in accompanying drawing, in actual device, these orientation may be different due to the disposing way of device.
In sum, embodiment described in the utility model only provides a kind of embodiment of the best, technology contents of the present utility model and technical characterstic disclose as above, yet are familiar with the content that the personage of the technology still may disclose based on this utility model and do various replacement and the modifications that do not deviate from creation spirit of the present invention; Therefore, protection domain of the present utility model is not limited to the technology contents that embodiment discloses, therefore all equivalences of doing according to shape of the present utility model, structure and principle change, is all encompassed in protection domain of the present utility model.
Claims (7)
1. a self-expansion type carotid artery overlay film frame, is characterized in that: described carotid artery overlay film frame comprises by some middle parts corrugated ring arranges the intermediate forming;
Axially between two adjacent row middle part corrugated rings, be mirror symmetry setting, and by the short muscle of intermediate, be connected between axial two adjacent row middle part corrugated rings;
Described intermediate both ends are provided with respectively end corrugation ring; The trough of described end corrugation ring is connected with described middle part corrugated ring crest by the short muscle in end, and the crest of described end corrugation ring is provided with feeler;
On described intermediate, be covered with biofilm.
2. a kind of self-expansion type carotid artery overlay film frame according to claim 1, is characterized in that: the peak separation of described end corrugation ring is the twice of middle part corrugated ring peak separation.
3. a kind of self-expansion type carotid artery overlay film frame according to claim 1, is characterized in that: the crest distance of two the middle part corrugated rings in interval between the short muscle of intermediate.
4. a kind of self-expansion type carotid artery overlay film frame according to claim 1, is characterized in that: the crest of two the end corrugation rings of being often separated by described end corrugation ring is provided with a feeler.
5. a kind of self-expansion type carotid artery overlay film frame according to claim 1, is characterized in that: the length of described feeler is that 0.5mm is to 1mm.
6. a kind of self-expansion type carotid artery overlay film frame according to claim 1, is characterized in that: the material of described middle part corrugated ring, the short muscle of intermediate, end corrugation ring, the short muscle in end and feeler is Nickel-titanium alloy for medical purpose.
7. according to a kind of self-expansion type carotid artery overlay film frame described in arbitrary claim in claim 1 to 6, it is characterized in that: described end corrugation ring integral body is bell mouth shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320490708.0U CN203408130U (en) | 2013-08-12 | 2013-08-12 | Self-expansion carotid artery covered stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320490708.0U CN203408130U (en) | 2013-08-12 | 2013-08-12 | Self-expansion carotid artery covered stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203408130U true CN203408130U (en) | 2014-01-29 |
Family
ID=49971059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320490708.0U Expired - Fee Related CN203408130U (en) | 2013-08-12 | 2013-08-12 | Self-expansion carotid artery covered stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203408130U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105726174A (en) * | 2016-04-27 | 2016-07-06 | 苏州天鸿盛捷医疗器械有限公司 | Intravascular stent and preparation method and application thereof |
| CN105796220A (en) * | 2016-04-27 | 2016-07-27 | 苏州天鸿盛捷医疗器械有限公司 | Intravascular stent and preparation method and application thereof |
| CN105853034A (en) * | 2016-03-23 | 2016-08-17 | 北京微创介入医疗装备有限公司 | Vascular stent and stent conveying system |
| CN106176003A (en) * | 2016-07-06 | 2016-12-07 | 苏州天鸿盛捷医疗器械有限公司 | A kind of intravascular stent, its preparation method and application |
| CN106456347A (en) * | 2014-03-18 | 2017-02-22 | 波士顿科学国际有限公司 | Reduced granulation and inflammation stent design |
| WO2017185529A1 (en) * | 2016-04-27 | 2017-11-02 | 苏州天鸿盛捷医疗器械有限公司 | Vascular stent, preparation method therefor, and application thereof |
| WO2021253216A1 (en) * | 2020-06-16 | 2021-12-23 | Suzhou Venmed Technology Co., Ltd. | Intravascular stent |
| US11471309B2 (en) | 2016-04-27 | 2022-10-18 | Suzhou Venmed Technology Co., Ltd. | Intravascular stent, preparation method and use thereof |
| RU2814029C1 (en) * | 2023-04-04 | 2024-02-21 | федеральное государственное бюджетное образовательное учреждение высшего образования "Северо-Западный государственный медицинский университет имени И.И. Мечникова" Министерства здравоохранения Российской Федерации | Method for emergency cerebral revascularization in acute thrombosis of reconstruction area after eversion carotid endarterectomy |
-
2013
- 2013-08-12 CN CN201320490708.0U patent/CN203408130U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106456347A (en) * | 2014-03-18 | 2017-02-22 | 波士顿科学国际有限公司 | Reduced granulation and inflammation stent design |
| US10117763B2 (en) | 2014-03-18 | 2018-11-06 | Boston Scientific Scimed, Inc. | Reduced granulation and inflammation stent design |
| CN105853034A (en) * | 2016-03-23 | 2016-08-17 | 北京微创介入医疗装备有限公司 | Vascular stent and stent conveying system |
| EP3449878A4 (en) * | 2016-04-27 | 2020-04-15 | Suzhou Venmed Technology Co., Ltd. | Vascular stent, preparation method therefor, and application thereof |
| WO2017185529A1 (en) * | 2016-04-27 | 2017-11-02 | 苏州天鸿盛捷医疗器械有限公司 | Vascular stent, preparation method therefor, and application thereof |
| CN105726174B (en) * | 2016-04-27 | 2018-06-29 | 苏州天鸿盛捷医疗器械有限公司 | A kind of intravascular stent, preparation method and application |
| CN105796220A (en) * | 2016-04-27 | 2016-07-27 | 苏州天鸿盛捷医疗器械有限公司 | Intravascular stent and preparation method and application thereof |
| CN105726174A (en) * | 2016-04-27 | 2016-07-06 | 苏州天鸿盛捷医疗器械有限公司 | Intravascular stent and preparation method and application thereof |
| US10695201B2 (en) | 2016-04-27 | 2020-06-30 | Suzhou Venmed Technology Co., Ltd. | Intravascular stent, preparation method and use thereof |
| US11471309B2 (en) | 2016-04-27 | 2022-10-18 | Suzhou Venmed Technology Co., Ltd. | Intravascular stent, preparation method and use thereof |
| CN106176003A (en) * | 2016-07-06 | 2016-12-07 | 苏州天鸿盛捷医疗器械有限公司 | A kind of intravascular stent, its preparation method and application |
| CN106176003B (en) * | 2016-07-06 | 2018-12-28 | 苏州天鸿盛捷医疗器械有限公司 | A kind of intravascular stent, preparation method and application |
| WO2021253216A1 (en) * | 2020-06-16 | 2021-12-23 | Suzhou Venmed Technology Co., Ltd. | Intravascular stent |
| RU2814029C1 (en) * | 2023-04-04 | 2024-02-21 | федеральное государственное бюджетное образовательное учреждение высшего образования "Северо-Западный государственный медицинский университет имени И.И. Мечникова" Министерства здравоохранения Российской Федерации | Method for emergency cerebral revascularization in acute thrombosis of reconstruction area after eversion carotid endarterectomy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203408130U (en) | Self-expansion carotid artery covered stent | |
| CN106137484A (en) | A kind of self-expansion type conical blood vessel support | |
| JP5623625B2 (en) | Branch vessel stent | |
| CN102525701B (en) | Absorbable blood vessel stent | |
| JP2012518474A (en) | Biodegradable prosthesis | |
| SK166799A3 (en) | Controlled detachment stents | |
| CN201328896Y (en) | Coronary artery saccule expanding support capable of preventing dog bone disease | |
| CN105726174B (en) | A kind of intravascular stent, preparation method and application | |
| CN206714859U (en) | It is a kind of can pre- preventing restenosis of blood vessel double-deck intravascular stent | |
| CN109431664B (en) | Asymmetric intravascular stent | |
| CN102905650A (en) | Stent | |
| CN106691647A (en) | Biodegradable metal intravascular stent and application thereof | |
| CN106361478B (en) | A kind of mixed type balloon-expandable intravascular stent | |
| CN103550017A (en) | Intravascular stent applicable to conical blood vessel | |
| CN105726178B (en) | A kind of intravascular stent, its preparation method and application | |
| CN203425071U (en) | Blood vessel stent suitable for conical blood vessel | |
| CN105167881A (en) | Blood vessel stent resisting to longitudinal deformation | |
| CN203988521U (en) | A kind of asymmetric conical intravascular stent | |
| CN106176003B (en) | A kind of intravascular stent, preparation method and application | |
| CN103300951A (en) | Vertebral artery stent | |
| CN109602522A (en) | Self-expansion type braided support and its conveying device | |
| CN103110465B (en) | Magnesium alloy coronary support frame | |
| CN207168613U (en) | A kind of intravascular stent | |
| CN212281796U (en) | Blood vessel support | |
| JP2012061063A (en) | Stent delivery system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170711 Granted publication date: 20140129 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200711 Granted publication date: 20140129 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20190812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |