CN205041480U - Intracavity seals support suitable for a type aorta intermediate layer - Google Patents
Intracavity seals support suitable for a type aorta intermediate layer Download PDFInfo
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- CN205041480U CN205041480U CN201520766004.0U CN201520766004U CN205041480U CN 205041480 U CN205041480 U CN 205041480U CN 201520766004 U CN201520766004 U CN 201520766004U CN 205041480 U CN205041480 U CN 205041480U
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Abstract
The utility model provides an intracavity seals support suitable for a type aorta intermediate layer, includes that the straight cartridge type support of being made by nickel titanium alloy silk reaches attached to the outer tectorial membrane of support, its characterized in that, and the parcel pours into and uses internal capsule outside straight cartridge type support, and internal capsule laminates together through heat seal or bonding mode with the contact surface of support, has poured into the poly thing through filling hole among the internal capsule. The beneficial effects of the utility model are that, can successfully seal the stanford A type aorta intermediate layer that the cut is located ascending aorta, reduce complication such as interior hourglass and branch's support stop up, remain innominate artery, left arteria carotis communis and the normal blood of left subclavian artery to supply, make wicresoft's intervention treat stanford A type aorta intermediate layer enable, expansion intervenes the indication of treatment.
Description
Technical field
This utility model relates to medical stent, and namely a kind of intracavity sealed support system that can be used for treatment A type aorta dissection of aorta, also can be used for treating other dissections of aorta of involving bifurcated artery.
Background technology
Dissection of aorta is expanded different from aortic aneurysm generation arterial wall, and the former refers to that blood enters aorta wall middle level through aortic tunica intima cut and forms hematoma.Be also called dissecting aneurysm of aorta in the past, renamed as Aortic dissection at present, dissection of aorta was separated, be called for short dissection of aorta.Dissection of aorta morbidity is anxious, poor prognosis, dead in most of patients onset a few hours to a couple of days.According to DeBakey classification method, I type refers to that interlayer originates in ascending aorta, crosses ascending aorta bow and involves descending aorta; II type refers to that interlayer is initial and is confined to ascending aorta; III type refers to that interlayer originates in descending aorta left subclavian artery open distal end and may extend to diaphragm lower abdominal aorta.Dissection of aorta is divided into amphitypy by Stanford university Daily etc., and namely ascending aorta affected individual is StanfordA type, comprises DeBakeyI type and DeBakey II type, also known as near-end type; Interlayer starts from descending aorta, and person is StanfordB type, is namely equivalent to DeBakey III type, also known as distal type.Wherein, StanfordA type dissection of aorta accounts for 66.7%, needs surgical operation therapy, and as DebakeyI type adopts ascending aorta+aortic arch prosthetic vessel replacement+improved support trunk operation, Debakey II type adopts ascending aorta replacement.The intracavity repairing and treating of the first-selected Wicresoft of StanfordB type dissection of aorta, the technology such as chimney technology, periscope technology, branch stent and orthotopic fenestration are adopted namely successfully to completely cut off interlayer cut, effectively can retain again the normal blood confession of left subclavian artery, avoid the severe complications such as apoplexy.
But, StanfordA type dissection of aorta is the relatively blind district of intracavitary therapy, forbidden zone, how to break this situation, allows the interventional therapy of Wicresoft replace traditional surgery, to greatly reduce operation wound, mortality rate and complication rate, for this type of patient and family members bring dawn.In recent years, the intracavity aneurysm sealing art that foreign scholar proposes was that the treatment of infrarenal abdominal aorta tumor provides a kind of new method, also for the intracavitary therapy of StanfordA type dissection of aorta provides new reference thinking.This technology, by adopting polymer-filled capsula interna, is fixed overall aneurysmal sack, greatly reduces the anatomical requirements to tumor neck, expand indication, and reduce the generation of the complication such as internal hemorrhage due to trauma.But the Nellix system that intracavity aneurysm sealing art adopts at present is all double bracket, the design of two capsula interna, and is not suitable for treating dissection of aorta.
Summary of the invention
The purpose of this utility model is just for above-mentioned prior art Problems existing, to break interventional therapy StanfordA type dissection of aorta absolute forbidden area, overcome a difficult problem for Nellix systematic treating dissection of aorta, and a kind of intracavity plug rack system that can be used for treating A type aorta dissection of aorta is provided.
The purpose of this utility model is achieved through the following technical solutions: a kind of intracavity sealed support being applicable to A type dissection of aorta, comprise the straight barrel type support be made up of nitinol alloy wire and the overlay film be attached to outside support, perfusion capsula interna is wrapped with at straight barrel type support, the contact surface of capsula interna and support overlay film is fit together by heat seal or bonding mode, is perfused with polymer in capsula interna by filling mouth.
In this utility model, described straight barrel type support can be the network structure that nitinol alloy wire is woven into, and also can be to be joined end to end successively by the nitinol alloy wire in Z-shaped structure to be welded.According to the needs of individuation, main body rack can intended diameter relatively fixing, and be less than conventional stent size so that conveying operations, length can design different parameters, for the dissection of aorta of repairing different range.
Described capsula interna can design different-diameter, and with the dissection of aorta that sealed diameter is different, the length of capsula interna changes and respective change according to main body rack length.The effect of capsula interna is fixed support, prevents stent migration, and can eliminate and chimney support, periscope support conbined usage time between gap with avoid internal hemorrhage due to trauma to be formed and support pressurized inaccessible etc.
Mounting system of the present utility model can utilize tubular cavity inner support conveyer device in the market to carry out conveying in body, release, its capsula interna can adopt the perfusion technique of Nellix system, and chimney support, periscope support adopt traditional EVAR support used and conveying technology.
The utility model has the advantage of: 1. main body rack requires low to Thoracic Aortic Diseases topography, indication is wider, is applicable to the patient that distortion, angulation and calcification are serious; 2. the use of capsula interna can avoid main body rack in conventional art directly to contact with chimney support, periscope support, and compressing chimney support, causes narrow or inaccessible, improve chimney support, periscope support patency rate; 3. owing to adopting capsula interna to fix, seal, conventional stent can be greatly reduced for fixing radial force, thus reduce oversize and main body rack diameter, thinner induction system can be adopted, be convenient to conveying and by aortic arch, require also to decrease to Access artery; 4. main body rack size is relatively fixing, and stent length is unique parameters, reduces preoperative measurement index, without the need to customizing the support of complex parameters, is conducive to row emergency operation; 5. adopt single-side stand, single capsula interna to design, be more suitable for being used for the treatment of dissection of aorta than Nellix system, the complication such as more convenient process near-end internal hemorrhage due to trauma; 6. the support unit of independent research is competitively priced, comparatively import support economy, alleviates the financial burden of trouble side.
The beneficial effects of the utility model are, successfully can seal the StanfordA type dissection of aorta that cut is positioned at ascending aorta, reduce the complication such as internal hemorrhage due to trauma and branch stent obturation, retain the normal blood of innominate artery, left common carotid artery and left subclavian artery to supply, make Minimally Interventional Therapy StanfordA type dissection of aorta become possibility, expand the indication of interventional therapy.
Accompanying drawing explanation
Fig. 1: a kind of sealed support structural representation (Z-type structure) of the present utility model.
Fig. 2: another kind of sealed support structural representation (network structure) of the present utility model.
Fig. 3: sealed support is positioned A type aorta clamp layer region (capsula interna does not fill polymer).
Fig. 4: sealed support is positioned A type aorta clamp layer region (capsula interna fills polymer).
In figure: 1. support, 2. overlay film, 3. capsula interna, 4. fill mouth, 5. chimney support, 6. periscope support.
Detailed description of the invention
This utility model is described further below in conjunction with accompanying drawing:
As shown in Figure 1, 2: a kind of intracavity sealed support being applicable to A type dissection of aorta, comprise the straight barrel type support 1 be made up of nitinol alloy wire and the overlay film 2 be attached to outside support, perfusion capsula interna 3 is wrapped with at straight barrel type support, the contact surface of capsula interna and support is fit together by heat seal or bonding mode, is perfused with polymer in capsula interna 3 by filling mouth 4.
Actual when using, support 1 for supporting, fixing and by the blood flow of thoracic aorta, capsula interna 3 outside support, for pouring into polymeric seal aneurysm, to play the gap of filling between main body rack and blood vessel wall, chimney support 5, periscope support 6; Chimney support 5, periscope support 6 are for keeping aortic arch three artery blood flows unobstructed (see Fig. 3,4).In the process of concrete operations, first integrated bracket is delivered to Thoracic Aortic Diseases place, successively discharge chimney support 5, periscope support 6 and support 1, then by perfusion cannula, outer for support capsula interna 3 is poured into polymer, make it fill thoracic aorta completely.
Claims (4)
1. one kind is applicable to the intracavity sealed support of A type dissection of aorta, comprise the straight barrel type support be made up of nitinol alloy wire and the overlay film be attached to outside support, it is characterized in that, perfusion capsula interna is wrapped with at straight barrel type support, the contact surface of capsula interna and support overlay film is fit together by heat seal or bonding mode, is perfused with polymer in capsula interna by filling mouth.
2. the intracavity sealed support being applicable to A type dissection of aorta according to claim 1, is characterized in that: described straight barrel type support is the network structure that nitinol alloy wire is woven into.
3. the intracavity sealed support being applicable to A type dissection of aorta according to claim 1, is characterized in that: described straight barrel type support is joined end to end successively by the nitinol alloy wire in Z-shaped structure to be welded.
4. the intracavity sealed support being applicable to A type dissection of aorta according to claim 1, is characterized in that: capsula interna can design different-diameter, with the dissection of aorta that sealed diameter is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520766004.0U CN205041480U (en) | 2015-09-30 | 2015-09-30 | Intracavity seals support suitable for a type aorta intermediate layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520766004.0U CN205041480U (en) | 2015-09-30 | 2015-09-30 | Intracavity seals support suitable for a type aorta intermediate layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205041480U true CN205041480U (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520766004.0U Expired - Fee Related CN205041480U (en) | 2015-09-30 | 2015-09-30 | Intracavity seals support suitable for a type aorta intermediate layer |
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| Country | Link |
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| CN (1) | CN205041480U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106618796A (en) * | 2016-12-05 | 2017-05-10 | 中国人民解放军第二军医大学 | Aorta anti-wave stent graft system |
| CN106726003A (en) * | 2016-12-30 | 2017-05-31 | 上海长海医院 | Dissection of aorta intravascular stent and its manufacture method |
-
2015
- 2015-09-30 CN CN201520766004.0U patent/CN205041480U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106618796A (en) * | 2016-12-05 | 2017-05-10 | 中国人民解放军第二军医大学 | Aorta anti-wave stent graft system |
| CN106726003A (en) * | 2016-12-30 | 2017-05-31 | 上海长海医院 | Dissection of aorta intravascular stent and its manufacture method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20160930 |