CN201930098U - Left atrial appendage occluding umbrella - Google Patents
Left atrial appendage occluding umbrella Download PDFInfo
- Publication number
- CN201930098U CN201930098U CN2010206426768U CN201020642676U CN201930098U CN 201930098 U CN201930098 U CN 201930098U CN 2010206426768 U CN2010206426768 U CN 2010206426768U CN 201020642676 U CN201020642676 U CN 201020642676U CN 201930098 U CN201930098 U CN 201930098U
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- China
- Prior art keywords
- umbrella
- atrial appendage
- canopy
- left atrial
- shutoff
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- 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.)
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Abstract
The utility model relates to a left atrial appendage occluding umbrella, which adopts a braided structure formed by repeatedly bending and folding back a metal wire. The overall appearance of the left atrial appendage occluding umbrella is in the shape of a pine and the left atrial appendage occluding umbrella is divided into a base part, a neck part, and an umbrella cover part, wherein, the base part takes the shape of a plate with the concave surface downwards, the neck part adopts a metal wire bundling structure, the umbrella cover part adopts a multilayer structure, each layer of the umbrella cover is shaped like a plate or a saucer with the concave surface downwards or is discoid, the top of the top layer umbrella cover is level dome-shaped, the lower layer umbrella cover and the occluding umbrella neck part transit smoothly, and the adjacent up and down umbrella covers are connected through the waist in the way of smooth transition. The left atrial appendage occluding umbrella is provided with favorable stretching elasticity and entire reliability, can be better matched with the atrial appendage cavity in shape, and can occlude the atrial appendage cavity completely and radically, and the left atrial appendage occluding umbrella is stable and not easy to drop off.
Description
Technical field
This utility model relates to the medical apparatus and instruments of implant into body.Specifically, be the metal net shaped support that is used for shutoff left auricle inner cavity chamber.
Background technology
Left auricle is a blind chamber that is positioned at the left atrium upside.The auricle intracavity blood is near resting state and condenses when the persistence atrial fibrillation.The blood clot that comes off from auricle becomes thrombosis, and the easiest brain that enters causes the carbuncle in the occipital region infraction.For avoiding left auricle intracavity thrombosis and effusion, contemporary medical science has developed the technology of using the shutoff umbrella that the auricle chamber is sealed.Promptly, be installed in the auricle intracavity by vessel catheter with metal wire knitted shutoff umbrella.As time goes on, the endocardial cells covering metal rack of creeping is realized the sealing to the auricle chamber.Using maximum left atrial appendage occlusion umbrellas both at home and abroad at present is the product of U.S. PLAATO company.Its umbrella top is discus shape, and the top central authorities of going up of umbrella are provided with the metal button, and the bottom center of umbrella is provided with umbrella handle.The metal button on umbrella top and the umbrella handle at the bottom of the umbrella are all in order to the termination of welded wire.This kind shutoff umbrella to the shutoff of auricle chamber usually not exclusively, not thorough, also thrombosis and effusion may take place.This kind structural traps umbrella is also understable, comes off easily.Sometimes in order to prevent that the shutoff umbrella from coming off, barb is set on support, thrusts the auricle wall, fixedly in the shutoff umbrella auricle is being caused damage.
The utility model content
The purpose of this utility model is to provide a kind of shutoff umbrella that is used for the shutoff left auricle, and it is stable to the shutoff degree height in auricle chamber, difficult drop-off.
The purpose of this utility model realizes by following technical measures.
Use an one metal wire, alternating bending is turned back and is woven into cylindrical network, and two terminations wiry concentrate on an end of tube, mutually welding.Cylindrical net metal support is carried out hot-working by model, and moulding becomes needed shape.
The shutoff umbrella that this utility model is used for left auricle is divided into pedestal part, cervical region and canopy portion three parts.Overall appearance is as a pinaster shape under free extended configuration, the root system that pedestal part is equivalent to set, and cervical region is equivalent to trunk, and canopy portion is equivalent to tree crown.Wherein, pedestal part is a dish type, and concave surface is downward, and its diameter is greater than the transverse diameter of canopy portion, than the big 2-5 millimeter of left auricle chamber opening part bore.Bigger pedestal part helps the stability after support is placed to auricle; The cervical region of shutoff umbrella connects the pedestal part and the canopy portion of shutoff umbrella, is the boundling structure wiry of woven mesh support.It is the 1-3 bundle that all tinsels of process shutoff umbrella cervical region are suitable for boundling; The canopy portion of shutoff umbrella is a multiple structure, and preferred level is a layer 2-3.Each layer canopy stacks up and down as the downward dish of concave surface or as discus shape.The top of top layer canopy is smooth dome shape, and lower floor's canopy and shutoff umbrella cervical region seamlessly transit, and connects by the waist transition between neighbouring two-layer canopy.
As optimization, the transverse diameter of multilamellar canopy is up-small and down-big, and the thickness of canopy is upper-thin-lower-thick.That is, it is less to be positioned at its transverse diameter of top canopy, thinner thickness; It is bigger to be positioned at its transverse diameter of following canopy, and thickness is thicker.Structure like this, the anatomical shape of adaptation left auricle such as Cornu Caprae seu Ovis, tighter to the shutoff in left auricle chamber.
This utility model left atrial appendage occlusion umbrella is stipulated the density degree of its net with its cross section finding quantity wiry.As preferred version, cross section quantity wiry is 80～160.
Be used to weave the nitinol alloy wire that the tinsel of this utility model shutoff umbrella preferably has memory function; Used Ultimum Ti silk, preferred diameter is 0.01～0.3 millimeter.
This utility model left atrial appendage occlusion umbrella is because use an one metal wire to weave, shutoff umbrella than existing purposes of the same race, cancelled vertical metal button, tinsel termination pad is reduced to one from more than 100, wiry turning back a little is in free state, improve the stretching, extension elasticity of support greatly, also improved the global reliability of support.After by cardiac catheter operation this utility model shutoff umbrella being placed to the left auricle chamber, support canopy portion and pedestal part fully stretch, and pedestal part is positioned at left atrium, and canopy portion is positioned at the left auricle intracavity, and cervical region is positioned at the left auricle opening part.The canopy portion of this utility model shutoff umbrella crown form, multiple structure in addition, elasticity and moulding better makes support more docile with combining of auricle cavity wall, to the shutoff in auricle chamber more completely.
Description of drawings
Accompanying drawing 1,2 is two example structure sketch maps of this utility model left atrial appendage occlusion umbrella.Cervical region tinsel boundling embodiment illustrated in fig. 1 is a branch of, and cervical region tinsel boundling embodiment illustrated in fig. 2 is a three beams.
The represented position of number in the figure is: 1-top layer canopy; 2-support cervical region; 3-bracket base portion; Waist between the two-layer canopy of 4-; 5-second layer canopy.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Adopt the Ultimum Ti silk in 0.02 millimeter in a diameter wire footpath, calculate and the intercepting suitable length by the shape and size of shutoff umbrella design, bending is woven into the cylindrical metal silk screen repeatedly, an end that makes two terminations wiry the concentrate on cylinder at last welding that matches.From cylindrical cross section, quantity wiry is 80～160.By model, metal gauze being done 1000 ℃ of left and right sides hot-working typings afterwards, will originally be that columniform net metal rack making becomes as designing requirement pinaster shape shutoff umbrella.
As shown in Figure 1, 2, the shutoff umbrella is divided into pedestal part 3, cervical region 2 and canopy portion three parts.Wherein, pedestal part 3 is a dish type, and concave surface is downward, and its diameter is than the big 2-5 millimeter of left auricle opening part bore, also greater than shutoff umbrella canopy portion transverse diameter; Shutoff umbrella cervical region 2 connects pedestal part 3 and canopy portion, seamlessly transits with the two.Shutoff umbrella cervical region 2 is the boundling structure wiry of woven mesh support, and all tinsel boundlings of process cervical region 2 are the 1-3 bundle.Tinsel boundling embodiment illustrated in fig. 1 is a branch of, is positioned on the axis of support.Tinsel boundling embodiment illustrated in fig. 2 is a three beams, encloses the axis and makes triangular arrangement.The canopy portion of shutoff umbrella is multilamellar canopy 1,5 structures, and each layer as a discus also can be made into the downward dish shape of concave surface.The level of canopy is suitable with layer 2-3.Accompanying drawing 1,2 illustrated embodiment canopys are two layers.Top layer canopy 1 is connected by waist 4 transition with lower floor canopy 5.Top layer canopy 1 is little than lower floor's canopy 5 transverse diameters, thin thickness.Lower floor's canopy 5 bottom surfaces and support cervical region 2 seamlessly transit.
Claims (6)
1. a left atrial appendage occlusion umbrella is characterized in that, it is the one metal wire alternating bending braiding structure of turning back, and is divided into pedestal part, cervical region and canopy portion three parts; Wherein, pedestal part is a dish type, and concave surface is downward, and its diameter is greater than the transverse diameter of canopy portion, than the big 2-5 millimeter of left auricle chamber opening part bore; The cervical region of shutoff umbrella connects the pedestal part and the canopy portion of shutoff umbrella, is the boundling structure wiry of woven mesh support, and all tinsel boundlings of process shutoff umbrella cervical region are the 1-3 bundle; The canopy portion of shutoff umbrella is a multiple structure, and each layer canopy is as the downward dish of concave surface or as discus shape, the top of top layer canopy is smooth dome shape, and lower floor's canopy and shutoff umbrella cervical region seamlessly transit, and connect by the waist transition between neighbouring canopy.
2. left atrial appendage occlusion umbrella according to claim 1 is characterized in that, the level of described shutoff umbrella canopy portion is a layer 2-3.
3. left atrial appendage occlusion umbrella according to claim 1 and 2 is characterized in that, the transverse diameter of described shutoff umbrella multilamellar canopy and thickness compare, and it is less to be positioned at its transverse diameter of top canopy, thinner thickness; It is bigger to be positioned at its transverse diameter of following canopy, and thickness is thicker.
4. left atrial appendage occlusion umbrella according to claim 1 is characterized in that, from its cross-sectional view, quantity wiry is 80～160.
5. according to claim 1 or 4 described left atrial appendage occlusion umbrellas, it is characterized in that the tinsel that is used for the woven mesh support is the nitinol alloy wire with memory function.
6. left atrial appendage occlusion umbrella according to claim 5 is characterized in that, the diameter of described nitinol alloy wire is 0.01～0.3 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206426768U CN201930098U (en) | 2010-12-06 | 2010-12-06 | Left atrial appendage occluding umbrella |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206426768U CN201930098U (en) | 2010-12-06 | 2010-12-06 | Left atrial appendage occluding umbrella |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201930098U true CN201930098U (en) | 2011-08-17 |
Family
ID=44441640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206426768U Expired - Fee Related CN201930098U (en) | 2010-12-06 | 2010-12-06 | Left atrial appendage occluding umbrella |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201930098U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104173080A (en) * | 2014-07-21 | 2014-12-03 | 上海形状记忆合金材料有限公司 | Occlusion device |
| CN105658148A (en) * | 2013-06-26 | 2016-06-08 | W.L.戈尔及同仁股份有限公司 | Occlusive device |
| CN108024813A (en) * | 2015-07-13 | 2018-05-11 | 曼威医疗技术有限公司 | Method and apparatus for left atrial appendage occlusion |
| US10993803B2 (en) | 2011-04-01 | 2021-05-04 | W. L. Gore & Associates, Inc. | Elastomeric leaflet for prosthetic heart valves |
| CN112914661A (en) * | 2021-02-01 | 2021-06-08 | 上海锦葵医疗器械股份有限公司 | Degradable heart left auricle occluder and manufacturing method thereof |
| US11129622B2 (en) | 2015-05-14 | 2021-09-28 | W. L. Gore & Associates, Inc. | Devices and methods for occlusion of an atrial appendage |
| US11173023B2 (en) | 2017-10-16 | 2021-11-16 | W. L. Gore & Associates, Inc. | Medical devices and anchors therefor |
| US11457925B2 (en) | 2011-09-16 | 2022-10-04 | W. L. Gore & Associates, Inc. | Occlusive devices |
-
2010
- 2010-12-06 CN CN2010206426768U patent/CN201930098U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10993803B2 (en) | 2011-04-01 | 2021-05-04 | W. L. Gore & Associates, Inc. | Elastomeric leaflet for prosthetic heart valves |
| US11457925B2 (en) | 2011-09-16 | 2022-10-04 | W. L. Gore & Associates, Inc. | Occlusive devices |
| CN105658148B (en) * | 2013-06-26 | 2020-07-14 | W.L.戈尔及同仁股份有限公司 | Filling device |
| CN105658148A (en) * | 2013-06-26 | 2016-06-08 | W.L.戈尔及同仁股份有限公司 | Occlusive device |
| US11911258B2 (en) | 2013-06-26 | 2024-02-27 | W. L. Gore & Associates, Inc. | Space filling devices |
| CN104173080A (en) * | 2014-07-21 | 2014-12-03 | 上海形状记忆合金材料有限公司 | Occlusion device |
| US11129622B2 (en) | 2015-05-14 | 2021-09-28 | W. L. Gore & Associates, Inc. | Devices and methods for occlusion of an atrial appendage |
| US11826052B2 (en) | 2015-05-14 | 2023-11-28 | W. L. Gore & Associates, Inc. | Devices and methods for occlusion of an atrial appendage |
| CN108024813A (en) * | 2015-07-13 | 2018-05-11 | 曼威医疗技术有限公司 | Method and apparatus for left atrial appendage occlusion |
| US11779319B2 (en) | 2015-07-13 | 2023-10-10 | Marvel Medical Technologies LLC | Method and device for left atrial appendage closure |
| US11173023B2 (en) | 2017-10-16 | 2021-11-16 | W. L. Gore & Associates, Inc. | Medical devices and anchors therefor |
| CN112914661A (en) * | 2021-02-01 | 2021-06-08 | 上海锦葵医疗器械股份有限公司 | Degradable heart left auricle occluder and manufacturing method thereof |
| CN112914661B (en) * | 2021-02-01 | 2022-08-30 | 上海锦葵医疗器械股份有限公司 | Degradable heart left auricle occluder and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20131206 |