CN201701341U - Integral great vessel branch stent - Google Patents
Integral great vessel branch stent Download PDFInfo
- Publication number
- CN201701341U CN201701341U CN 201020240888 CN201020240888U CN201701341U CN 201701341 U CN201701341 U CN 201701341U CN 201020240888 CN201020240888 CN 201020240888 CN 201020240888 U CN201020240888 U CN 201020240888U CN 201701341 U CN201701341 U CN 201701341U
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- branch
- support
- section
- overlay film
- sine wave
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Abstract
An integral great vessel branch stent comprises a main framework and a first branch stent. The main framework consists of three sections of frames. The integral great vessel branch stent is characterized in that the first section of the frame which is bared is in the shape of a horn formed by circling a metal wire according to a sine wave, the second section of the frame is a straight tubular mesh formed by circling a metal wire according to a sine wave, the third section of the frame is an arc-shaped tubular mesh formed by circling a metal wire according to a sine wave, coating films made of artificial blood vessels are coated on the second section frame and the third section frame, a window is arranged on the second section frame, the first branch stent is a straight tubular mesh formed by circling a metal wire according to a sine wave and arranged at the window disposed on the second section frame, the first section frame, the second section frame and the third section frame are connected integrally with the first branch stent via high-strength wires, a coating film made of artificial blood vessels is coated the first branch stent, and the coating film of the first branch stent is sewn integrally with a coating film of the main framework. The integral great vessel branch stent is accurate in positioning, fine in compliance, simple in releasing process, safe in operation and capable of perfectly keeping blood in a branch vessel and achieving good supporting force.
Description
Technical field
This utility model relates to a kind of intravascular stent, particularly relates to a kind of Contiuum type trunk branch support.
Background technology
For true, false aneurysm that involves aortic arch and dissection of aorta, traditional treatment method of putting is a surgical operation.Surgical operation comprises: ascending aorta bow replacement, half aortic arch replacement, full aortic arch replacement, traditional trunk technology and various improvement trunk technology etc.But these surgical operation modes all need the auxiliary of cold cycle time-out and cardiopulmonary bypass.Although these ancillary techniques have had very big improvement, the mortality rate relevant with surgical operation and the incidence rate of nervous system injury are still respectively up to 7%-17% and 4%-12%.The clinical practice first time of EVAR begins since the nineties in 20th century, and this minimally-invasive treatment technology has just had very fast development.Aspect the treatment of aortic arch pathological changes, the Therapeutic Method of initial this Wicresoft treatment pattern main and the surgical operation associating is applied widely clinical.Concrete associated form: at first have operating method will bend top set's blood vessel transposition, put up a bridge or rebuild fully, will bend the also shutoff in the lump of opening of top set's blood vessel in the time of then with overlay film frame shutoff cut.Existing evidence is the feasibility and the superiority of verified this bill also.This therapeutic alliance pattern makes mortality rate and apoplexy incidence rate reduce to 0-20% and 0-8% respectively.In addition, using the simple EVARs such as support, branch's support of windowing treats this type of pathological changes and has also received concern more and more widely.This type of Therapeutic Method is littler to patient's wound.Though because the particularity of individual patients situation, the required support of present this Therapeutic Method must be special customized, but the patient of dissection of aorta generally just is fit to carry out EVAR in chronic phase, and true, false aneurysm also can be chosen date for operation, this has been also just for support customized stayed the time, so " support customized " can not treat this type of disease by the restricted room endoprosthesis.But the equal more complicated of operating process of the present support of windowing, Contiuum type branch support and modular branch support, and branch's support is all under test basically at present, really be applied to clinical also seldom.But they differ from one another, and also do not have to belong to the bad evaluation of giving preferential treatment to the families of the armymen and martyrs at present.
The utility model content
Contiuum type trunk branch support comprises main body framework and first branch's support, and main body framework is made of three sections skeletons, and first section skeleton is bare bracket, surrounds horn-like by sine wave by tinsel; Second section is the straight tube net that is surrounded by sine wave by tinsel; The 3rd section is the arc tube net that is surrounded by sine wave by tinsel, all is coated with the overlay film of being made by artificial blood vessel on second section skeleton and the 3rd section skeleton.Offer a window on described second section skeleton, described first branch's support is the straight tube net that is surrounded by sine wave by tinsel, first branch's support is arranged on the window place that second section skeleton offered, described first section skeleton, second section skeleton, the 3rd short bone frame, and first be connected to an integral body by high-strength filaments between branch's support, be coated with the overlay film of making by artificial blood vessel on described first branch's support, and the overlay film on first branch's support and the overlay film on the main body framework are stitched into an integral body.
The overlay film of first branch's support
One side of first branch's support links together by high-strength filaments and main body framework, this limit is non-active edges, another side is in support compression of first branch and swollen open procedure, the overlay film length that needs between first branch's support and main body framework changes, be called active edges, because this special character of active edges, the order of overlay film should be carried out the overlay film in the branch earlier, after first branch's support overlay film is finished, with its compression, then main body framework is carried out coverlay, and be under the compressive state, two parts are sewed up at first branch's support.In addition, necessarily allow during overlay film the main body framework and first branch support junction artificial blood vessel overlay film more than needed few as far as possible.
In order to make support open the more than needed few as far as possible of back first branch's support active edges and main body framework junction overlay film, take following measure:
1, branch hoop is not regular cylindrical shape, but by the branch on long and short limit, and during 2, the first branch holder part overlay film, the overlay film beyond branch's hoop opening and the skeleton of first branch's support are not stitched together; 3, the overlay film and the main body framework of near the main body framework first branch's support active edges directly are not stitched together yet.
The length of main body framework and first branch's support
The length of second section skeleton needs the diameter greater than left subclavian artery or left common carotid artery, and is slightly less than the length in aortic arch 2 districts or 1 district; The length of first branch's support is decided according to the aperture position of left vertebral artery; Second section and the 3rd section radian for the adaptation aortic arch all are designed to the arc cylindrical net.
The compression of main body framework and first branch's support
The compression of main body framework is identical with the compression of conventional bracket, and first branch's support is realized the compression of support by special branch's hoop, there is a metal hook described branch hoop rear end, and purpose is in order to discharge making things convenient for the extracting of gooseneck catching device and drawing component of support; Branch's hoop intracavity has a safety line, and purpose is to prevent that branch's hoop accident in the process that discharges support from coming off.
The pusher of first branch's support
Before component was finished the location, the state that the grappling bare bracket of front end must remain retracted could guarantee like this to operate calmly when the component of location, and realize the accurate location of component.In order to satisfy this requirement of first branch's support, we need use front end to have the pusher in " constraint storehouse ", the groove or the duct that will have confession " safety line " to pass through in the pusher, and safety line is exposed the tail end of pusher through this passage.
The first step: pusher is delivered to predetermined position along seal wire, and " shell " of post-tensioning pusher just makes component eject.Introduce the gooseneck catching device from branch vessel then, and capture " branch's hoop " terminal " metal hook " with it, the tensioned state of maintenance " safety line " simultaneously in case the coming off of " branch's hoop ", and causes the failure of operation.
Second step: make " shell " appropriate again post-tensioning, further discharge the 3rd section, such second section will further expand, and component could be pulled with comparalive ease and enter the bifurcated artery intracavity like this.Also will keep the tensioned state of " safety line " same this moment, in case the coming off of " branch's hoop ", and causes the failure of operation.
The 3rd step; The fixing handle of the pulling device of component and pusher rear end advances the handle of " inner core " then, discharges first section grappling bare bracket.
The 4th step: unclamp " safety line " then and the tractive gooseneck catching device of exerting oneself, make component deviate from the restriction of " branch's hoop "." branch's hoop " reaches " safety line " and gone out external by the gooseneck catching device by the catheter sheath tractive.Continue the shell of post-tensioning pusher, main body rack is discharged fully.At last pusher is combined once more.Withdraw from pusher, radiography confirms the plugging effect of support.
Second above-mentioned the 3rd section joint also offers a window, the window place is provided with second branch's support, constitute two branches support, branch's support at the 3rd section second joint window place is the straight tube net that is surrounded by sine wave by metal, be coated with the overlay film of making by artificial blood vessel on branch's support, overlay film on branch's support and the overlay film on the main body framework are sewed up in aggregates, and branch's support links together by high-strength filaments and main body framework.
Two branches support is the meaning of length: first section length must guarantee that its front end is still away from aortic valve after the support placement is finished; Second section length is greater than the innominate artery opening diameter; The 3rd section length equals innominate artery and left common carotid artery spacing, and the length of IV section is greater than the opening diameter of left common carotid artery.
The utlity model has following advantage:
1, accurate positioning; 2, compliance is good; 3, dispose procedure is simple; 4, control safety; 5, the blood flow of reservation branch vessel that can be intact; 6, good supporting force.
Description of drawings
Fig. 1 is the structural representation of first kind of embodiment of this utility model.
Fig. 2 is the structural representation of second kind of embodiment of this utility model.
Fig. 3 is the structural representation of this utility model list branch carrier openings window.
Fig. 4 is the structural representation of the two branches of this utility model carrier openings window.
Fig. 5 is the structural representation of this utility model branch hoop.。
The specific embodiment
Embodiment one
Contiuum type trunk branch support comprises main body framework 1 and first branch's support 2, main body framework 1 by first section skeleton 3, second section frame 4, and the 3rd section skeleton 5 constitute, first section skeleton 3 is bare brackets, surrounds horn-like by sine wave by tinsel; Second section skeleton 4 and the 3rd section skeleton 5 all are the arc tube nets that surrounded by sine wave by tinsel, all are coated with the overlay film of being made by artificial blood vessel on second section skeleton 4 and the 3rd section skeleton 5.Second section skeleton 3 offers the straight tube net that a window place 6 first branch's supports 2 are surrounded by sine wave by tinsel, it is an integral body that first branch's support 2 is arranged on that 3 second sections skeleton 4 the 3rd short bone framves 5 of the 6 first sections skeletons in window place of second section skeleton 4 and 2 on first branch's support connect by high-strength filaments 7, first branch's support 2 is coated with the overlay film of being made by artificial blood vessel, and the overlay film of first branch's support 2 and master
Overlay film on the body skeleton is stitched into an integral body.The outer branch hoop 10 that is with in first branch's support, 2 compression backs, branch's hoop 10 is cylindric, and an end of branch's hoop 10 has inclined open 11, and the other end is a blind end, and the top of inclined open 11 is a minor face, the bottom of inclined open 11 is long limit; The blind end of branch's hoop 10 is fixed a metal hook 12; The intracavity of branch's hoop 10 has a safety line 13.
Embodiment two
Embodiment two and embodiment one are basic identical, its difference is to save at second of the 3rd section skeleton 5 also to offer a window 8, window 8 places are provided with second branch's support 9, constitute two branches support, second branch's support 9 at the 3rd section second joint window 8 places is the straight tube nets that surrounded by sine wave by metal, be coated with the overlay film of making by artificial blood vessel on second sub-stent, overlay film on second branch's support 9 and the overlay film on the main body framework are sewed up in aggregates, and second branch's support links together by high-strength filaments 7 and main body framework.
Claims (4)
1. Contiuum type trunk branch support comprises main body framework and first branch's support, and main body framework is made of three sections skeletons, it is characterized in that described first section skeleton is bare bracket, surrounds horn-like by sine wave by tinsel; Second section is the straight tube net that is surrounded by sine wave by tinsel; The 3rd section is the arc tube net that is surrounded by sine wave by tinsel, be coated with on the described second section skeleton of the overlay film of making by artificial blood vessel on second section skeleton and the 3rd section skeleton and offer a window, described first branch's support is the straight tube net that is surrounded by sine wave by tinsel, first branch's support is arranged on the window place that second section skeleton offered, described first section skeleton, second section skeleton, the 3rd short bone frame, and first be connected to an integral body by high-strength filaments between branch's support, be coated with the overlay film of making by artificial blood vessel on described first branch's support, and the overlay film on first branch's support and the overlay film on the main body framework are stitched into an integral body.
2. Contiuum type trunk according to claim 1 branch support, it is characterized in that second described the 3rd section joint also offers a window, the window place is provided with second branch's support, constitute two branches support, branch's support at the 3rd section second joint window place is the straight tube net that is surrounded by sine wave by metal, be coated with the overlay film of making by artificial blood vessel on second branch's support, overlay film on second branch's support and the overlay film on the main body framework are sewed up in aggregates, and second branch's support links together by high-strength filaments and main body framework.
3. Contiuum type trunk according to claim 1 and 2 branch support, it is characterized in that being equipped with on the described branch support branch's hoop, described branch hoop is for cylindric, it is opening that an end binds round in branch, the other end is a blind end, and the top of the inclined-plane opening of described opening is the minor face of branch's hoop, and the bottom of opening is the long limit of branch's hoop, the Closed End of branch's hoop is fixed with a metal hook, and the intracavity of branch's hoop has a safety line.
4. Contiuum type trunk according to claim 1 and 2 branch support is characterized in that the diameter of the length of second section skeleton of described main body framework greater than left subclavian artery or left common carotid artery, and less than the length in aortic arch two districts or a district; The length of the 3rd section skeleton equals brachiocephalic trunk tremulous pulse and left common carotid artery spacing; The length of first branch's support is decided according to the left vertebral artery aperture position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020240888 CN201701341U (en) | 2010-06-29 | 2010-06-29 | Integral great vessel branch stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020240888 CN201701341U (en) | 2010-06-29 | 2010-06-29 | Integral great vessel branch stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201701341U true CN201701341U (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020240888 Expired - Fee Related CN201701341U (en) | 2010-06-29 | 2010-06-29 | Integral great vessel branch stent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201701341U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309367A (en) * | 2010-06-29 | 2012-01-11 | 李卫校 | Integral large vascular branch bracket |
| CN103300940A (en) * | 2013-06-27 | 2013-09-18 | 中国人民解放军第三军医大学第三附属医院 | Integrated thoracic aortic branch support |
| CN105662511A (en) * | 2015-12-30 | 2016-06-15 | 先健科技(深圳)有限公司 | Lumen stent |
| CN106923943A (en) * | 2015-12-31 | 2017-07-07 | 先健科技(深圳)有限公司 | Overlay film frame |
| CN106923931A (en) * | 2015-12-31 | 2017-07-07 | 先健科技(深圳)有限公司 | Overlay film frame |
-
2010
- 2010-06-29 CN CN 201020240888 patent/CN201701341U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102309367A (en) * | 2010-06-29 | 2012-01-11 | 李卫校 | Integral large vascular branch bracket |
| CN103300940A (en) * | 2013-06-27 | 2013-09-18 | 中国人民解放军第三军医大学第三附属医院 | Integrated thoracic aortic branch support |
| CN103300940B (en) * | 2013-06-27 | 2015-06-24 | 中国人民解放军第三军医大学第三附属医院 | Integrated thoracic aortic branch support |
| CN105662511A (en) * | 2015-12-30 | 2016-06-15 | 先健科技(深圳)有限公司 | Lumen stent |
| CN105662511B (en) * | 2015-12-30 | 2018-10-26 | 先健科技(深圳)有限公司 | Intraluminal stent |
| US10702370B2 (en) | 2015-12-30 | 2020-07-07 | Lifetech Scientific (Shenzhen) Co., Ltd | Lumen stent |
| CN106923943A (en) * | 2015-12-31 | 2017-07-07 | 先健科技(深圳)有限公司 | Overlay film frame |
| CN106923931A (en) * | 2015-12-31 | 2017-07-07 | 先健科技(深圳)有限公司 | Overlay film frame |
| CN106923931B (en) * | 2015-12-31 | 2019-12-10 | 先健科技(深圳)有限公司 | Covered stent |
| CN106923943B (en) * | 2015-12-31 | 2019-12-10 | 先健科技(深圳)有限公司 | Covered stent |
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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: 20110112 Termination date: 20140629 |
|
| EXPY | Termination of patent right or utility model |