CN2904980Y - A left auricle occluding device - Google Patents
A left auricle occluding device Download PDFInfo
- Publication number
- CN2904980Y CN2904980Y CN 200620041695 CN200620041695U CN2904980Y CN 2904980 Y CN2904980 Y CN 2904980Y CN 200620041695 CN200620041695 CN 200620041695 CN 200620041695 U CN200620041695 U CN 200620041695U CN 2904980 Y CN2904980 Y CN 2904980Y
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- support
- left auricle
- stopper
- utility
- model
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Abstract
The utility model relates to the technical field of medical equipments, being a left auricle occluding device, which consists of a meshed hollow support (1) which is weaved and knitted by the super elastic metal wire, support fixing steel coils (2) and (3) and the polyester film (4) laid in the support. The meshed hollow support (1) has a straw hat shape structure, the upper part of the hat brim being in semi-sphere shape, the lower part of the hat brim being in round plane shape, the support fixing steel coil (2) positioned in the center of the top of the semi-sphere and provided with thread, matching with the external thread of the head of the pushing bar used for putting in the occluding device, the fixing steel coil (3) positioned in the center of the round plane (1.1) of the support. The left auricle is planted in, the semi-sphere structure positioned at the opening of the left auricle without leaving any residual cavity, and thus not forming thrombus. The utility model is simple in productive technique, easy to operate and has good occluding effect.
Description
Technical field
This utility model relates to technical field of medical instruments, is a kind ofly to be used to prevent atrial fibrillation thrombosis to cause the left atrial appendage occlusion device of thromboembolism.
Background technology
Atrial fibrillation is to cause that cerebral infarction causes the disabled and dead major reason of patient.As everyone knows, left auricle structurally communicates with left atrium, and when atrial fibrillation took place, the atrium lost effective contraction, can make the circulation of left auricle inner blood not smooth, and the blood that is stranded in the left auricle might form thrombosis.Find that after deliberation the apoplexy relevant with atrial fibrillation about 80% derives from the thrombosis at left auricle position, thromboembolism that we can say the left auricle position is the main arch-criminal of patients with atrial fibrillation cerebral infarction.On therapeutic strategy, main by anticoagulant, but can not determine the effect how long just anticoagulant need be obeyed the prevention thromboembolism, certainly will reduce the compliance that the patient takes medicine and take medicine for a long time, increase the weight of patient's economy, psychological burden, and have the crowd that high risk factor is not suitable for taking for a long time anticoagulant again for those, then lack active measures.
For strengthening atrial fibrillation crowd prevention of ischaemic stroke, especially have high risk factor and be not suitable for taking for a long time the crowd of anticoagulant again, and the patient is freed from lifelong anticoagulant therapy, people such as calendar year 2001 U.S. Lesh develop left atrial appendage occlusion device (PLAATO), the PLAATO device comprises a stopper and delivery conduit, with stopper left atrial appendage occlusion is lived, to form thrombosis in the prevention left auricle and to come off into left atrium.The zoopery result shows that the left atrial appendage occlusion effect is satisfied, and local healing is good, no new thrombosis, and initial research has confirmed its safety and effectiveness.Left atrial appendage occlusion device was applied to clinical in 2002.The stopper of PLAATO device is like oblate spheroid lantern shape structure, the skeleton of stopper is made by the niti-shaped memorial alloy silk, the surface coverage of skeleton has one deck polytetrafluoroethylene (ePTFE) thin film, it is outer with fixing ePTFE thin film that the waist of skeleton has a plurality of little grasps to stretch out thin film, be respectively equipped with a plastics locking cap and a fixed steelring at disk center, stopper both sides, the plastics locking cap is used for thin film is fixed in skeleton, fixed steelring not only has the effect that makes thin film be fixed in support, and the effect that is connected with push rod arranged, this steel ring is provided with female thread, and the external screw thread of its used push rod head when implanting stopper is complementary.Earlier steel ring is tightened in the push rod head when implanting stopper, put the short sheath of tubulose from the push rod other end again, utilize the elasticity and the shape memory function of nick-eltitanium alloy stent, by push rod stopper is elongated to attenuate and be inserted in short sheath, by delivery sheath stopper is pushed into the left auricle intracavity, discharge stopper from the sheath pipe gradually again, stopper resiles, the one side that has the plastics locking cap is positioned at the left auricle intracavity, fixed steelring place face then is stuck in the left auricle opening part, and the inwall of this face and left atrium is fair, and reverse rotation this moment push rod is thrown off itself and steel ring, push rod is taken out together with delivery sheath, and left auricle is just by shutoff.But through clinical a small amount of on probation, there are two problems in stopper, the one, and the disc that is stuck in the left auricle opening part is bordering on the plane, in case Sai Detai is dark when implanting, just might leave over residual cavity after the shutoff, and still there is the hidden danger of thromboembolism in formation thrombosis easily in residual cavity; The 2nd, the waist of stopper has little grasp; grasp is a kind of barb; stopper after helping implanting is fixed in the left auricle; but because the left auricle size is difficult to accurate measurement in the practical operation; often need repeatedly change stopper, the existence of grasp can bring inconvenience, damage left auricle internal film tissue when particularly this barb might or be adjusted stopper placed-depth and position at the transposing stopper; and this stopper complex manufacturing technology, large-scale production has certain difficulty.
Summary of the invention
This utility model provides a kind of rational in infrastructure, stopper of inserting conveniently, can effectively preventing the left auricle thrombosis.
This utility model reticulates the polyester film that hollow sting, support fixed steelring and support liner go into by hyperelastic metal wire knitted and forms.Netted hollow sting is straw hat shape structure, and shade top is the hemisphere shape, and the shade bottom is the circular flat shape, and it is placed on setting with being made through heat treatment in the mould after being woven into the grid hollow sting by the superelastic metal silk, has shape memory function.Respectively there is a fixed steelring in the central authorities that are positioned at hemisphere top and circular flat, be that wire rings is around braiding axle center into the net herein, hemisphere top steel ring is provided with female thread, the external screw thread of used push rod head is complementary during with the implantation stopper, polyester film is lining in the support, application dacron thread or other silk threads in support, can effectively intercept the blood circulation of left atrium and left auricle with the polyester film sheet sutured.This utility model can be made into different specifications and models, select corresponding specifications and models when inserting for use, the fixed steelring at hemisphere top is tightened in the push rod head, put the short sheath of tubulose from the push rod other end again, utilize the elasticity and the shape memory function of wire rack mount, by push rod stopper is elongated to attenuate and be inserted in short sheath, by delivery sheath stopper is pushed into the left auricle intracavity, discharge stopper from the sheath pipe gradually again, stopper resiles, and the sphere at this fixed steelring place is stuck in the left auricle opening part, and reverse rotation this moment push rod is thrown off itself and steel ring, push rod is taken out together with delivery sheath, and left auricle is just by shutoff.Because the hemisphere structure places the left auricle opening part, thus can not leave over residual cavity after the shutoff, thus avoided the formation of thrombosis.Simultaneously, because the diameter of circular flat is big than the hemisphere diameter, place the left auricle inwall like shade shape bulging structure, so the probability that stopper comes off automatically is little, in case circular flat can not cause damage to inwall when needing to change stopper or adjusting the stopper position, operates very convenient yet.Confirm that through zoopery this utility model is easy to operate, plugging effect is good.
Description of drawings
Fig. 1 is this utility model side-looking structural representation
Fig. 2 faces structural representation for this utility model left atrium face.
The specific embodiment
Now in conjunction with the accompanying drawings and embodiments, this utility model is described in detail.
The netted hollow sting 1 that this utility model is woven into by the superelastic metal silk, support fixed steelring 2 and 3 and the support liner polyester film 4 of going into form.Said superelastic metal silk is super-elasticity stainless steel silk or nitinol alloy wire, support 1 is straw hat shape structure, fixed steelring 2 is positioned at the hemisphere center of top of support, be provided with female thread, the external screw thread coupling of this female thread used push rod head when inserting stopper, fixed steelring 3 is positioned at the central authorities of the circular flat 1.1 of support, hemisphere diameter 16～26mm, the diameter of circular flat 1.1 can be hemisphere diameter+4mm greater than the hemisphere diameter.3～5 layers of polyester film of support liner, sutured is in support.
Embodiment 1
This utility model is used diameter and is woven into netted hollow sting for the 0.1mm nitinol alloy wire, and 3 layers of polyester film of liner use the dacron thread sutured in support, hemisphere diameter 16mm, high 8mm, circular flat 1.1 diameter 20mm, steel ring 2 external diameter 2mm, high 2mm is provided with female thread.Steel ring 3 external diameter 2mm, high 2mm.
Embodiment 2
This utility model hemisphere diameter 18mm, high 10mm, circular flat 1.1 diameter 21.5mm, all the other are with embodiment 1.
Embodiment 3
This utility model forms with the braiding of 0.1mm super-elasticity stainless steel silk, hemisphere diameter 20mm, and high 10mm, circular flat 1.1 diameter 25mm, all the other are with embodiment 1.
Embodiment 4
This utility model hemisphere diameter 22mm, high 10mm, circular flat 1.1 diameter 26mm, all the other are with embodiment 1.
Claims (1)
1. left atrial appendage occlusion device, the polyester film (4) that the netted hollow sting (1) that it is characterized in that being formed by superelastic metal silk braiding, support fixed steelring (2) and (3) and support liner are gone into is formed, netted hollow sting (1) is straw hat shape structure, shade top is the hemisphere shape, the shade bottom is the circular flat shape, support fixed steelring (2) is positioned at the central authorities at hemisphere top, is provided with female thread, and fixed steelring (3) is positioned at the central authorities of circular flat (1.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620041695 CN2904980Y (en) | 2006-05-11 | 2006-05-11 | A left auricle occluding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620041695 CN2904980Y (en) | 2006-05-11 | 2006-05-11 | A left auricle occluding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2904980Y true CN2904980Y (en) | 2007-05-30 |
Family
ID=38113606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620041695 Expired - Fee Related CN2904980Y (en) | 2006-05-11 | 2006-05-11 | A left auricle occluding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2904980Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102727271A (en) * | 2012-06-29 | 2012-10-17 | 北京米道斯医疗器械有限公司 | Proximal anastomosis device |
| CN103099652A (en) * | 2013-02-19 | 2013-05-15 | 湖南埃普特医疗器械有限公司 | Left auricle plugging device and transport system |
| CN104039241A (en) * | 2011-11-08 | 2014-09-10 | W.L.戈尔及同仁股份有限公司 | Sealing device and delivery system |
| CN105658148A (en) * | 2013-06-26 | 2016-06-08 | W.L.戈尔及同仁股份有限公司 | Occlusive device |
| US9763666B2 (en) | 2013-02-19 | 2017-09-19 | Apt Medical Inc. | Left atrial appendage plugging device and delivery system |
| US10993803B2 (en) | 2011-04-01 | 2021-05-04 | W. L. Gore & Associates, Inc. | Elastomeric leaflet for prosthetic heart valves |
| CN113081137A (en) * | 2021-04-28 | 2021-07-09 | 上海佐心医疗科技有限公司 | Implant apparatus conveying system and push rod 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 |
-
2006
- 2006-05-11 CN CN 200620041695 patent/CN2904980Y/en not_active Expired - Fee Related
Cited By (15)
| 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 |
| CN104039241A (en) * | 2011-11-08 | 2014-09-10 | W.L.戈尔及同仁股份有限公司 | Sealing device and delivery system |
| CN102727271A (en) * | 2012-06-29 | 2012-10-17 | 北京米道斯医疗器械有限公司 | Proximal anastomosis device |
| CN102727271B (en) * | 2012-06-29 | 2014-12-24 | 北京米道斯医疗器械有限公司 | Proximal anastomosis device |
| US9763666B2 (en) | 2013-02-19 | 2017-09-19 | Apt Medical Inc. | Left atrial appendage plugging device and delivery system |
| CN103099652B (en) * | 2013-02-19 | 2015-08-12 | 湖南埃普特医疗器械有限公司 | A kind of left atrial appendage occlusion device and a kind of induction system |
| CN103099652A (en) * | 2013-02-19 | 2013-05-15 | 湖南埃普特医疗器械有限公司 | Left auricle plugging device and transport system |
| CN105658148A (en) * | 2013-06-26 | 2016-06-08 | W.L.戈尔及同仁股份有限公司 | Occlusive device |
| CN105658148B (en) * | 2013-06-26 | 2020-07-14 | W.L.戈尔及同仁股份有限公司 | Filling device |
| US11911258B2 (en) | 2013-06-26 | 2024-02-27 | W. L. Gore & Associates, Inc. | Space filling devices |
| 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 |
| US11173023B2 (en) | 2017-10-16 | 2021-11-16 | W. L. Gore & Associates, Inc. | Medical devices and anchors therefor |
| CN113081137A (en) * | 2021-04-28 | 2021-07-09 | 上海佐心医疗科技有限公司 | Implant apparatus conveying system and push rod 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: 20070530 Termination date: 20130511 |