CN203898496U - Abdominal aorta stent - Google Patents
Abdominal aorta stent Download PDFInfo
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- CN203898496U CN203898496U CN201420256073.2U CN201420256073U CN203898496U CN 203898496 U CN203898496 U CN 203898496U CN 201420256073 U CN201420256073 U CN 201420256073U CN 203898496 U CN203898496 U CN 203898496U
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- stent
- overlay film
- support
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- main body
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Abstract
The utility model discloses an abdominal aorta stent. The abdominal aorta stent comprises a bare stent, a covered stent body, a first covered sub-stent and a second covered sub-stent, wherein the bare stent is provided with a fixing part fixing the bare stent on the wall of the abdominal aorta, one end of the covered stent body is connected with the bare stent, and both the first covered sub-stent and the second covered sub-stent are connected with the other end of the covered stent body. The diameter of each of the first covered sub-stent and the second covered sub-stent is smaller than that of the covered stent body, and the length of the first covered sub-stent is larger than that of the second covered sub-stent. Each of the covered stent body, the first covered sub-stent and the second covered sub-stent comprises a plurality of stent bodies and polymeric membranes covering the stent bodies, and any two adjacent stent bodies are connected through the polymeric membranes. The stent bodies and the bare stents are enclosed by elastic waveform supports radially retracting to form a cylinder structure. In this way, by the aid of the abdominal aorta stent, operation difficulty when a stent body for abdominal aortic aneurysm is passed can be reduced, and large traumas caused to blood vessels can be reduced effectively.
Description
Technical field
This utility model relates to medical instruments field, relates in particular to a kind of ventral aorta support.
Background technology
Abdominal aortic aneurysm is congested projection or the swelling bubble in ventral aorta, and abdomen iliac artery aneurysm is that ventral aorta and iliac artery occur independence simultaneously or be connected to whole congested projection or swelling is steeped.As time goes on, the swelling position of abdominal aortic aneurysm or abdomen iliac artery aneurysm may attenuation a little less than, even if normotensive dynamics just may make it break, swelling follicular rupture can bring fatal danger.
In China, along with improving constantly and aged tendency of population of living standards of the people, the sickness rate of aortic aneurysm has been ascendant trend year by year.
For abdominal aortic aneurysm disease, traditional Therapeutic Method is that excision aneurysm is rebuild aorta vessel simultaneously, although effective, but operation wound is large, particularly, for the Aged Patients that merges the important organ illness such as the heart, brain, lung, kidney, its operative mortality surpasses 20%, in the gerontal patient of Concomitance with Diverse Diseases, operative mortality is higher, reaches more than 60%.
Along with the development of modern medicine technology, interventional minimally-invasive therapy, as a kind of emerging treatment means, is just constantly used in various difficult miscellaneous diseases.Endovascular graft is the minimally-invasive treatment for abdominal aortic aneurysm occurring in recent years, and this development of take the endoluminal vascular surgical technic that Wicresoft is feature makes the Diagnosis-treat Model generation great variety of abdominal aortic aneurysm.
Ventral aorta support is by induction system, the memory alloy stent that is covering polymeric membrane is sent to diseased region and discharged, and treats that support launches completely, and isolated aneurysm cavity and parent artery inner chamber, or false aneurysm or interlayer at once, repair lesion vessels.
Yet prior art midfield aortic stents induction system size is larger, when induction system is inserted blood vessel, not only operation easier is higher, and the wound that blood vessel is caused is larger, be unfavorable for patient's healing, and also less or that anatomical structure is complicated is often inapplicable for abdomen tremulous pulse size.
Therefore, how to solve the operation easier while reducing the conveying of ventral aorta rack body, and how to reduce the problem that blood vessel is caused to larger wound, become those skilled in the art's important technological problems to be solved.
Utility model content
This utility model provides a kind of ventral aorta support, operation easier when it can reduce the conveying of ventral aorta rack body, and can effectively reduce blood vessel is caused to larger wound, and can effectively expand the indication of ventral aorta EVAR.
The ventral aorta support that this utility model provides, comprising:
Bare bracket, described bare bracket is provided with for described bare bracket is fixed on to the fixture on arterial wall;
Overlay film frame main body, one end is connected with described bare bracket;
The first overlay film sub-stent and the second overlay film sub-stent, the two is all connected with the other end of described overlay film frame main body and diameter is all less than described overlay film frame main body, and the length of described the first overlay film sub-stent is greater than described the second overlay film sub-stent;
Described overlay film frame main body, described the first overlay film sub-stent and described the second overlay film sub-stent include a plurality of support bodys and a plurality of described support bodys are coated on respectively to inner polymeric membrane, and two described support bodys of arbitrary neighborhood are connected by described polymeric membrane;
Described support body and described bare bracket are all served as reasons the elastic waveform stereoscopic supporter that can radially shrink around the cylinder-like structure forming.
Preferably, described bare bracket is provided with pitman near one end of described overlay film frame main body, and described pitman is connected with the polymeric membrane of described overlay film frame main body.
Preferably, described pitman is inserted into described polymeric membrane inside.
Preferably, described fixture is the barb being arranged on described bare bracket.
Preferably, be connected with the described overlay film frame main body opposite end of one end of described bare bracket is provided with link.
Preferably, described bare bracket is provided with the first indicating with one end that described overlay film frame main body is connected, and the material of described the first indicating is platinum, gold, platinum alloy, tungsten alloy or billon.
Preferably, described overlay film frame main body and described the second overlay film sub-stent are provided with the second indicating, and the material of described the second indicating is platinum, gold, platinum alloy, tungsten alloy or billon.
Preferably, the material of described bare bracket and described support body is Nitinol.
Preferably, described polymeric membrane is that polyester fiber braiding forms.
Preferably, described elastic waveform stereoscopic supporter is sinusoidal wave form supporter.
Preferably, described elastic waveform stereoscopic supporter is triangular waveform supporter.
The ventral aorta support that this utility model provides, comprising: bare bracket, and described bare bracket is provided with for described bare bracket is fixed on to the fixture on arterial wall; Overlay film frame main body, one end is connected with described bare bracket; The first overlay film sub-stent and the second overlay film sub-stent, the two is all connected with the other end of described overlay film frame main body, and the length of described the first overlay film sub-stent is greater than described the second overlay film sub-stent; Described overlay film frame main body, described the first overlay film sub-stent and described the second overlay film sub-stent include a plurality of support bodys and a plurality of described support bodys are coated on respectively to inner polymeric membrane, and two described support bodys of arbitrary neighborhood are connected by described polymeric membrane; Described support body and described bare bracket are all served as reasons the elastic waveform stereoscopic supporter that can radially shrink around the cylinder-like structure forming.So arrange, the ventral aorta support that this utility model provides, need to be delivered in patient's blood vessel by stent delivery system, the ventral aorta support providing due to this utility model, its overlay film frame main body, the support body of the first overlay film sub-stent and the second overlay film sub-stent, and bare bracket is all served as reasons the elastic waveform stereoscopic supporter that can radially shrink around the cylinder-like structure forming, while packing stent delivery system into, ventral aorta support can draw in completely to center with comparalive ease, reduced as much as possible the diameter of whole support compressive state, be that whole support can be pre-installed in the less induction system of external diameter, and then the operation easier can reduce ventral aorta support and carry time, and can effectively reduce blood vessel is caused to larger wound.
In addition, it should be noted that, after the ventral aorta support that this utility model provides inputs in blood vessel, it is accurately fixing that fixture can make support realize on ventral aorta, overlay film frame main body, the first overlay film sub-stent and the second overlay film sub-stent are for separating aneurysm cavity and parent artery inner chamber, and the first overlay film sub-stent is longer than the second overlay film sub-stent, when placing abdominal aortic aneurysm overlay film frame, the first overlay film frame end is released to iliac artery inside, to realize, same lateral aneurysm distal artery tumor chamber and parent artery inner chamber are separated, can effectively shorten operating time, improve success rate of operation.The second overlay film sub-stent is released in aneurysm body, it is inner that doctor can guide to ilium limb stent delivery system the second overlay film sub-stent, and the off-position of definite ilium limb support, discharge after ilium limb support, ilium limb support front end and the second overlay film sub-stent are overlapping and to be placed in the second overlay film sub-stent inner, it should be noted that, one end diameter near the second overlay film sub-stent of ilium limb support need be greater than the second overlay film sub-stent, realizes the joint and seal of ilium limb support and the second overlay film sub-stent by ilium limb support radial force.Ilium limb rack far end is released in contralateral iliac artery, thereby lateral aneurysm distal artery tumor chamber and parent artery inner chamber are separated when realizing blood flow and continue smooth and easy supply bilateral iliac artery to effectively isolation aneurysm, stops aneurysm rupture.
Accompanying drawing explanation
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, 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.
Fig. 1 is this utility model specific embodiment midfield aortic stents schematic diagram;
Fig. 2 is the A portion enlarged diagram in Fig. 1;
In Fig. 1 and Fig. 2:
Bare bracket-1, link-2, barb-3, the first indicating-4, support body-5, polymeric membrane-6, overlay film frame main body-7, the second indicating-8, pitman-9, through hole-10.
The specific embodiment
This specific embodiment provides a kind of ventral aorta support, operation easier when it can reduce the conveying of ventral aorta rack body, and can effectively reduce blood vessel is caused to larger wound.
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is only this utility model part embodiment, rather than whole embodiment.Embodiment based in this utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of this utility model protection.
Please refer to Fig. 1 and Fig. 2, the ventral aorta support that this specific embodiment provides, comprising:
Bare bracket 1, bare bracket 1 is provided with for bare bracket 1 is fixed on to the fixture on arterial wall;
Overlay film frame main body 7, one end is connected with bare bracket 1;
The first overlay film sub-stent and the second overlay film sub-stent, the two is all connected with the other end of overlay film frame main body 7, and the length of the first overlay film sub-stent is greater than the second overlay film sub-stent; Overlay film frame main body 7, the first overlay film sub-stent and the second overlay film sub-stent include a plurality of support bodys 5 and a plurality of support bodys 5 are coated on respectively to inner polymeric membrane 6, and two support bodys 5 of arbitrary neighborhood are connected by polymeric membrane 6; Support body 5 and bare bracket 1 are all served as reasons the elastic waveform stereoscopic supporter that can radially shrink around the cylinder-like structure forming.
So arrange, the ventral aorta support that this specific embodiment provides, need to be delivered in patient's blood vessel by stent delivery system, the ventral aorta support providing due to this specific embodiment, its overlay film frame main body 7, the support body 5 of the first overlay film sub-stent and the second overlay film sub-stent, and bare bracket 1 is all served as reasons the elastic waveform stereoscopic supporter that can radially shrink around the cylinder-like structure forming, while packing stent delivery system into, ventral aorta support can draw in completely to center with comparalive ease, reduced as much as possible the diameter of whole support compressive state, be that whole support can be pre-installed in the less induction system of external diameter, and then the operation easier can reduce ventral aorta support and carry time, and can effectively reduce blood vessel is caused to larger wound.
In addition, it should be noted that, after the ventral aorta support that this utility model provides inputs in blood vessel, it is accurately fixing that fixture can make support realize on ventral aorta, overlay film frame main body 7, the first overlay film sub-stent and the second overlay film sub-stent are for separating aneurysm cavity and parent artery inner chamber, and the first overlay film sub-stent is longer than the second overlay film sub-stent, when placing abdominal aortic aneurysm overlay film frame, the first overlay film frame end is released to iliac artery inside, to realize, same lateral aneurysm distal artery tumor chamber and parent artery inner chamber are separated, can effectively shorten operating time, improve success rate of operation.The second overlay film sub-stent is released in aneurysm body, it is inner that doctor can guide to ilium limb stent delivery system the second overlay film sub-stent, and the off-position of definite ilium limb support, discharge after ilium limb support, ilium limb support front end and the second overlay film sub-stent are overlapping and to be placed in the second overlay film sub-stent inner, it should be noted that, one end diameter near the second overlay film sub-stent of ilium limb support need be greater than the second overlay film sub-stent, realizes the joint and seal of ilium limb support and the second overlay film sub-stent by ilium limb support radial force.Ilium limb rack far end is released in contralateral iliac artery, thereby lateral aneurysm distal artery tumor chamber and parent artery inner chamber are separated when realizing blood flow and continue smooth and easy supply bilateral iliac artery to effectively isolation aneurysm, stops aneurysm rupture.
In the preferred version of this specific embodiment, bare bracket 1 is provided with pitman 9 near one end of overlay film frame main body 7, and pitman 9 is connected with the polymeric membrane 6 of overlay film frame main body 7.
Because bare bracket 1 is club shaped structure with the connecting-piece structure of overlay film frame main body 7, can effectively reduce the diameter after the compression of junction, and can make overlay film be close to blood vessel wall in case Hemostatic Oral Liquid is revealed, and can prevent that blood flow from causing the problem of overlay film displacement.
Pitman 9 is inserted into polymeric membrane 6 inside, and stretches into part and be provided with through hole 10.So arrange, the material of polymeric membrane 6 extend in through hole 10, can make pitman 9 and polymeric membrane 6 have higher adhesion, the problem of having avoided pitman 9 and polymeric membrane 6 to be separated.
It should be noted that, above-mentioned through hole 10 can be oval through hole 10, certainly, also can be the through hole 10 of other shape, such as circle, polygon etc., also through hole 10 setting can be changed to the design that groove etc. can successfully avoid pitman 9 and polymeric membrane 6 to be separated.
For bare bracket 1 can be connected in blood vessel wall reliably, as preferably, above-mentioned fixing piece can be for being arranged at the barb 3 on bare bracket 1.So arrange, ventral aorta support is delivered to after internal blood vessel, barb 3 will thrust blood vessel wall, make ventral aorta support obtain good fixed performance.
In order easily ventral aorta support to be delivered to internal blood vessel, in this specific embodiment, the opposite end of the one end that is connected with overlay film frame main body 7 at bare bracket 1 can be provided with link 2.
So arrange, while packing ventral aorta support into induction system, link 2 can hang in induction system, to facilitate induction system compression ventral aorta support, and then can easily ventral aorta support be packed in induction system.
In another preferred version of this specific embodiment, one end that bare bracket 1 is connected with overlay film frame main body 7 can be provided with the first indicating 4.So arrange, X ray to the supervision of the first indicating 4 under, can to ventral aorta support, locate accurately easily.This first indicating 4 can be for being around in be connected with described overlay film frame main body 7 first indicating 4 ring of one end of bare bracket 1.The material of the first indicating 4 rings can be platinum, gold, platinum alloy, tungsten alloy or billon.So arrange, X ray can clearly identify the first indicating 4.
In addition, in order further to improve the degree of accuracy to ventral aorta support location, on overlay film frame main body 7 and the second overlay film sub-stent, can be provided with the second indicating 8.Equally, the second indicating 8 can be circulus.The material of the second indicating 8 also can be platinum, gold, platinum alloy, tungsten alloy or billon.
In addition, in this specific embodiment, the material of bare bracket 1 and above-mentioned support body can all adopt Nitinol.So arrange, Nitinol has good elasticity, after being delivered in blood vessel, can recover well deformation, has good corrosion resistance simultaneously.
Polymeric membrane 6 in this specific embodiment can be formed by polyester fiber braiding, adopts the polymeric membrane 6 of Polyester Fibers to have good resisting fatigue effect.
It should be noted that, the elastic waveform stereoscopic supporter that this specific embodiment provides can be sinusoidal wave form supporter, certainly, also can be other shape, such as, triangular waveform supporter.So arrange, when sinusoidal wave form supporter or the compression of triangular waveform supporter, the pitch of waves shortens, and is easier to shrink.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use this utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, this utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a ventral aorta support, is characterized in that, comprising:
Bare bracket, described bare bracket is provided with for described bare bracket is fixed on to the fixture on arterial wall;
Overlay film frame main body, one end is connected with described bare bracket;
The first overlay film sub-stent and the second overlay film sub-stent, the two is all connected with the other end of described overlay film frame main body and diameter is all less than described overlay film frame main body, and the length of described the first overlay film sub-stent is greater than described the second overlay film sub-stent;
Described overlay film frame main body, described the first overlay film sub-stent and described the second overlay film sub-stent include a plurality of support bodys and a plurality of described support bodys are coated on respectively to inner polymeric membrane, and two described support bodys of arbitrary neighborhood are connected by described polymeric membrane;
Described support body and described bare bracket are all served as reasons the elastic waveform stereoscopic supporter that can radially shrink around the cylinder-like structure forming.
2. ventral aorta support as claimed in claim 1, is characterized in that, described bare bracket is provided with pitman near one end of described overlay film frame main body, and described pitman is connected with the polymeric membrane of described overlay film frame main body.
3. ventral aorta support as claimed in claim 2, is characterized in that, it is inner that described pitman is inserted into described polymeric membrane.
4. ventral aorta support as claimed in claim 1, is characterized in that, described fixture is the barb being arranged on described bare bracket.
5. ventral aorta support as claimed in claim 1, is characterized in that, be connected with the described overlay film frame main body opposite end of one end of described bare bracket is provided with link.
6. ventral aorta support as claimed in claim 1, is characterized in that, described bare bracket is provided with the first indicating with one end that described overlay film frame main body is connected, and the material of described the first indicating is platinum, gold, platinum alloy, tungsten alloy or billon.
7. ventral aorta support as claimed in claim 1, it is characterized in that, on described overlay film frame main body, described the first overlay film sub-stent and described the second overlay film sub-stent, be equipped with the second indicating, the material of described the second indicating is platinum, gold, platinum alloy, tungsten alloy or billon.
8. the ventral aorta support as described in claim 1-7 any one, is characterized in that, described elastic waveform stereoscopic supporter is sinusoidal wave form supporter.
9. the ventral aorta support as described in claim 1-7 any one, is characterized in that, described elastic waveform stereoscopic supporter is triangular waveform supporter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420256073.2U CN203898496U (en) | 2014-05-19 | 2014-05-19 | Abdominal aorta stent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420256073.2U CN203898496U (en) | 2014-05-19 | 2014-05-19 | Abdominal aorta stent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203898496U true CN203898496U (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420256073.2U Expired - Fee Related CN203898496U (en) | 2014-05-19 | 2014-05-19 | Abdominal aorta stent |
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| CN (1) | CN203898496U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103948455A (en) * | 2014-05-19 | 2014-07-30 | 湖南埃普特医疗器械有限公司 | Abdominal aorta stent |
| CN105796218A (en) * | 2016-03-08 | 2016-07-27 | 黄连军 | Covered stent |
| CN105832450A (en) * | 2016-05-19 | 2016-08-10 | 孙三友 | Endovascular intervention stent |
| CN107320216A (en) * | 2017-08-01 | 2017-11-07 | 上海长海医院 | A kind of integrated bracket for main common iliac artery |
| CN107569311A (en) * | 2017-07-05 | 2018-01-12 | 杭州唯强医疗科技有限公司 | Ring holder |
-
2014
- 2014-05-19 CN CN201420256073.2U patent/CN203898496U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103948455A (en) * | 2014-05-19 | 2014-07-30 | 湖南埃普特医疗器械有限公司 | Abdominal aorta stent |
| CN105796218A (en) * | 2016-03-08 | 2016-07-27 | 黄连军 | Covered stent |
| CN105832450A (en) * | 2016-05-19 | 2016-08-10 | 孙三友 | Endovascular intervention stent |
| CN105832450B (en) * | 2016-05-19 | 2018-08-24 | 郭莹 | A kind of intravascular intervention holder |
| CN107569311A (en) * | 2017-07-05 | 2018-01-12 | 杭州唯强医疗科技有限公司 | Ring holder |
| CN107320216A (en) * | 2017-08-01 | 2017-11-07 | 上海长海医院 | A kind of integrated bracket for main common iliac artery |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20141029 Termination date: 20170519 |
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| CF01 | Termination of patent right due to non-payment of annual fee |