CN202335893U - Left aurcle plugging device - Google Patents
Left aurcle plugging device Download PDFInfo
- Publication number
- CN202335893U CN202335893U CN2011204246657U CN201120424665U CN202335893U CN 202335893 U CN202335893 U CN 202335893U CN 2011204246657 U CN2011204246657 U CN 2011204246657U CN 201120424665 U CN201120424665 U CN 201120424665U CN 202335893 U CN202335893 U CN 202335893U
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- China
- Prior art keywords
- support frame
- atrial appendage
- occlusion device
- left atrial
- appendage occlusion
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- Expired - Lifetime
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Abstract
The utility model relates to the technical field of medical instruments and discloses a left aurcle plugging device for preventing and controlling embolism complicated by atrial fibrillation. The left aurcle plugging device comprises a support skeleton and a plugging membrane, wherein the outer surface of the support skeleton is coated by the plugging membrane; a plurality of barbs bent towards the top of the support skeleton are annularly arranged on the outer edge of the support skeleton; and the bottom end of the plugging membrane is positioned above the barbs. According to the left aurcle plugging device disclosed by the utility model, due to the adoption of the bars bent towards the top of the support skeleton, the plugging device is easily recovered for replacement in the conveying process; and furthermore, the plugging membrane and the top of the support skeleton are fixed by a fixing unit, so that high strength of the top of the support skeleton is ensured and further the support skeleton is not easy to break.
Description
Technical field
This utility model relates to a kind of technical field of medical instruments, relates in particular to a kind of left atrial appendage occlusion device that is used to prevent and treat atrial fibrillation thromboembolism complication.
Background technology
Atrial fibrillation is one of common arrhythmia, almost is shown in all organic heart diseasies.The incidence rate of atrial fibrillation is 0.4%～2.0% in general crowd, every increase of age 10 years old, and sickness rate increases by 1.4 times, and the probability that atrial fibrillation takes place among the crowd more than 75 years old accounts for 6%～10% greatly.Research shows that atrial fibrillation is the independent hazard factor that apoplexy takes place, and the apoplexy more than 15% is caused that by atrial fibrillation the embolus of nonvalvular atrial fibrillation occurs in left auricle (LAA) more than 90%.Therefore, more and more receive people's attention to the research of atrial fibrillation thromboembolism complication, that how to prevent the atrial fibrillation apoplexy has an important clinical meaning.
At present, for atrial fibrillation thromboembolism complication, main Therapeutic Method is atrial fibrillation anticoagulant therapy and surgical intervention prevention thromboembolism.Although the curative effect that warfarin anticoagulant therapy prevention atrial fibrillation apoplexy takes place has received certainly, the clinical practice rate of warfarin is low, only has 1/3 to have the patients with atrial fibrillation of anticoagulant indication to take warfarin according to quantity on time.Anticoagulant therapy is for quite a few patient especially the highest old people of atrial fibrillation sickness rate, often because have bleeding tendency and have anticoagulant contraindication such as hemorrhage and can't therefrom benefit.And surgical intervention prevention thromboembolism is that to carry out the surgical operation repairing down damaged directly perceived, and this surgical effect is bad and wound is big, and certain disability rate and mortality rate are arranged.
External at present advanced Therapeutic Method is a percutaneous left atrial appendage occlusion art prevention atrial fibrillation thromboembolism complication; Be mainly the stopper processed with niti-shaped memorial alloy and dacron membrane through cardiac catheter shutoff left auricle, this Wicresoft interventional therapy method time is short, wound is little, produce effects fast.
Calendar year 2001, U.S. Appriva Medical company has developed a kind of left atrial appendage occlusion device (PLAATO device), and the X-SEPT through 12F wears at interval that sheath (ApprivaMedical) is positioned over left auricle.The Watchman system is the device that is specifically designed to left atrial appendage occlusion by the development of Atritech company.Put into left auricle through 12F carrier and 14F epitheca pipe.Existing left atrial appendage occlusion device comes off after preventing to implant left auricle easily; So all be with agnail; But left atrial appendage occlusion device is after getting into left auricle at present; When finding that plugging device is improper and will change, its agnail hangs on the pipe when regaining the sheath pipe easily, can't get into the sheath pipe fully and change.
The utility model content
The technical problem that (one) will solve
The technical problem that this utility model will solve is how to solve to change that agnail is prone to hang over the problem that is difficult for changing on the sheath pipe in the left atrial appendage occlusion device.
(2) technical scheme
In order to solve the problems of the technologies described above; This utility model provides a kind of left atrial appendage occlusion device; Comprise: support frame and shutoff film; Said shutoff film is wrapped in the outer surface of said support frame, and the outer rim hoop of said support frame is provided with a plurality of agnails to the support frame top curved, and the bottom of said shutoff film is positioned at the top of agnail.
Wherein, the structural feature of said support frame and left auricle shape are complementary.
Further, also comprise fixed cell, said shutoff film and support frame interconnect fixing through fixed cell.
Wherein, Said fixed cell comprises: the bottom has externally threaded T shape cap, steel bushing and core bar; The inner chamber top of said steel bushing has the female thread that is complementary with the cap external screw thread; The outer rim of said core bar and the inner chamber of said steel bushing are complementary, and the top of said shutoff film and support frame is pressed abd fixed in the said inner chamber by core bar.
Wherein, said fixed cell is processed by the metal material with biocompatibility.
Further, said fixed cell is processed by stainless steel material.
Wherein, said shutoff film is processed by the macromolecular material with biocompatibility.
Further, said shutoff film is processed by Polyester Fibers.
Wherein, said support frame is interwoven by a plurality of tinsels, and intersect the bottom of said adjacent wire.
Further, said support frame is processed by shape memory alloy material.
(3) beneficial effect
A kind of left atrial appendage occlusion device that technique scheme provided adopts to the crooked agnail of support frame top-direction to make plugging device in course of conveying, be retracted easily and change; Further, fix, guaranteed the top high strength of support frame, not easy fracture through the top of fixed cell with shutoff film and support frame; Further, support frame adopts a plurality of tinsels to be interwoven, and the crossing structure in the bottom of adjacent wire, has strengthened the support force of its opening, and agnail can be hung on the left auricle.
Description of drawings
Fig. 1 is the structural representation of this utility model left atrial appendage occlusion device;
Fig. 2 is the structural representation of this utility model support frame;
Fig. 3 is the structural representation of this utility model fixed cell.
Wherein, 1, support frame; 2, shutoff film; 3, fixed cell; 4, agnail; 5, medicated cap lid; 6, steel bushing; 7, core bar.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the specific embodiment of this utility model is described in further detail.Following examples are used to explain this utility model, but are not used for limiting the scope of this utility model.
Illustrated in figures 1 and 2; This utility model left atrial appendage occlusion device comprises: support frame 1 and shutoff film 2, and the structural feature of support frame 1 and left auricle shape are complementary; Shutoff film 2 is wrapped in the outer surface of said support frame 1, is sewn on the support frame 1 corresponding to the bottom of shutoff film 2.Support frame 1 is processed by shape memory alloy material, can be nickel-titanium alloy material, and its outer rim hoop is provided with the agnail 4 of a plurality of top curved to support frame 1, and shutoff film 2 is positioned at the below of agnail 4.Shutoff film 2 is processed by the macromolecular material with good biocompatibility, can be Polyester Fibers.This plugging device also comprises fixed cell 3, and the top of shutoff film 2 and the top of support frame interconnect fixing through fixed cell 3.Support frame 1 is interwoven by a plurality of tinsels; The bottom of said adjacent wire intersects the structure of a plurality of cell solid matters; To strengthen the support force of its opening; Agnail 4 can be hung on the left auricle, and the bottom of support frame 1 adopts inward the arcs of recesses design, prevent that this bottom from puncturing left auricle.Fixed cell 3 is made by the metal material with good biocompatibility, can be stainless steel material.
Shown in Figure 3; Fixed cell 3 comprises: the bottom has externally threaded T shape cap 5, steel bushing 6 and core bar 7; The top of steel bushing 6 has the female thread that is complementary with cap 5 external screw threads, and the inner chamber of the outer rim of core bar 7 and steel bushing 6 is complementary, and the top of the top of shutoff film 2 and support frame 1 is fixed in the inner chamber of steel bushing 6 through core bar 7; Adopt this kind fixed cell 3 fixedly shutoff film 2 and support frame 1 frame mode; With respect to the existing technical method that adopts welding, make that the head intensity of support frame 2 is high, not easy fracture.
In zoopery and clinical practice, select different curved conveyer devices to carry plugging device with left auricle radiography result according to TEE.In carrying the plugging device process; If the plugging device size Selection is improper, then to plugging device be recovered in the epitheca pipe again, plugging device is when regaining the epitheca pipe; Because said agnail 4 is to the crooked structure of the cephalad direction of support frame 1; Reduce plugging device at the suffered resistance of process of regaining the epitheca pipe, agnail 4 pushes away effect epitheca pipe crowded and is easy to get into the epitheca pipe down, so that plugging device is retracted and reselects apparatus and also again plugging device is transported in the left auricle.
The above only is the preferred implementation of this utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from this utility model know-why, can also make some improvement and replacement, these improvement and replacement also should be regarded as the protection domain of this utility model.
Claims (10)
1. left atrial appendage occlusion device; It is characterized in that, comprising: support frame and shutoff film, said shutoff film is wrapped in the outer surface of said support frame; The outer rim hoop of said support frame is provided with a plurality of agnails to the support frame top curved, and the bottom of said shutoff film is positioned at the top of agnail.
2. left atrial appendage occlusion device according to claim 1 is characterized in that, the structural feature of said support frame and left auricle shape are complementary.
3. left atrial appendage occlusion device according to claim 1 is characterized in that, also comprises fixed cell, and said shutoff film and support frame interconnect fixing through fixed cell.
4. left atrial appendage occlusion device according to claim 3; It is characterized in that; Said fixed cell comprises: the bottom has externally threaded T shape cap, steel bushing and core bar; The inner chamber top of said steel bushing has the female thread that is complementary with the cap external screw thread, and the outer rim of said core bar and the inner chamber of said steel bushing are complementary, and the top of said shutoff film and support frame is pressed abd fixed in the said inner chamber by core bar.
5. left atrial appendage occlusion device according to claim 3 is characterized in that said fixed cell is processed by the metal material with biocompatibility.
6. left atrial appendage occlusion device according to claim 5 is characterized in that said fixed cell is processed by stainless steel material.
7. left atrial appendage occlusion device according to claim 1 is characterized in that, said shutoff film is processed by the macromolecular material with biocompatibility.
8. left atrial appendage occlusion device according to claim 7 is characterized in that, said shutoff film is processed by Polyester Fibers.
9. left atrial appendage occlusion device according to claim 1 is characterized in that said support frame is interwoven by a plurality of tinsels, and intersect the bottom of said adjacent wire.
10. left atrial appendage occlusion device according to claim 9 is characterized in that said support frame is processed by shape memory alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204246657U CN202335893U (en) | 2011-10-31 | 2011-10-31 | Left aurcle plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204246657U CN202335893U (en) | 2011-10-31 | 2011-10-31 | Left aurcle plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202335893U true CN202335893U (en) | 2012-07-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204246657U Expired - Lifetime CN202335893U (en) | 2011-10-31 | 2011-10-31 | Left aurcle plugging device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202335893U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014127641A1 (en) * | 2013-02-19 | 2014-08-28 | 湖南埃普特医疗器械有限公司 | Left atrial appendage plugging device and delivery system |
| CN104168843A (en) * | 2011-11-01 | 2014-11-26 | 科赫里克斯医疗股份有限公司 | Medical device for modification of left atrial appendage and related systems and methods |
| WO2015070733A1 (en) * | 2013-11-14 | 2015-05-21 | 先健科技(深圳)有限公司 | Left atrial appendage occluder |
| CN106163425A (en) * | 2013-11-28 | 2016-11-23 | 宾利-英诺美特有限公司 | Medical implant |
| WO2017215371A1 (en) * | 2016-06-15 | 2017-12-21 | 先健科技(深圳)有限公司 | Left atrial appendage occluder |
| 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 |
| WO2019161072A1 (en) * | 2018-02-14 | 2019-08-22 | Boston Scientific Scimed, Inc. | Occlusive medical device |
| EP3241498B1 (en) | 2014-12-31 | 2019-09-18 | Lifetech Scientific (Shenzhen) Co., Ltd. | Left atrial appendage occluder |
-
2011
- 2011-10-31 CN CN2011204246657U patent/CN202335893U/en not_active Expired - Lifetime
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104168843A (en) * | 2011-11-01 | 2014-11-26 | 科赫里克斯医疗股份有限公司 | Medical device for modification of left atrial appendage and related systems and methods |
| US9763666B2 (en) | 2013-02-19 | 2017-09-19 | Apt Medical Inc. | Left atrial appendage plugging device and delivery system |
| WO2014127641A1 (en) * | 2013-02-19 | 2014-08-28 | 湖南埃普特医疗器械有限公司 | Left atrial appendage plugging device and delivery system |
| CN105916454B (en) * | 2013-11-14 | 2019-05-03 | 先健科技(深圳)有限公司 | Occluder for left auricle |
| JP2017500908A (en) * | 2013-11-14 | 2017-01-12 | 先健科技（深▲せん▼）有限公司Ｌｉｆｅｔｅｃｈ Ｓｃｉｅｎｔｉｆｉｃ （Ｓｈｅｎｚｈｅｎ） Ｃｏ．，Ｌｔｄ | Left atrial appendage closure device |
| EP3072461A4 (en) * | 2013-11-14 | 2017-05-31 | Lifetech Scientific (Shenzhen) Co., Ltd. | Left atrial appendage occluder |
| CN105916454A (en) * | 2013-11-14 | 2016-08-31 | 先健科技(深圳)有限公司 | Left atrial appendage occluder |
| US11806019B2 (en) | 2013-11-14 | 2023-11-07 | Lifetech Scientific (Shenzhen) Co., Ltd | Left atrial appendage occluder |
| EP4137067A1 (en) * | 2013-11-14 | 2023-02-22 | Lifetech Scientific (Shenzhen) Co., Ltd | Left atrial appendage occluder |
| WO2015070733A1 (en) * | 2013-11-14 | 2015-05-21 | 先健科技(深圳)有限公司 | Left atrial appendage occluder |
| CN106163425A (en) * | 2013-11-28 | 2016-11-23 | 宾利-英诺美特有限公司 | Medical implant |
| CN106163425B (en) * | 2013-11-28 | 2022-01-07 | 宾利-英诺美特有限公司 | Medical implant |
| EP3241498B1 (en) | 2014-12-31 | 2019-09-18 | Lifetech Scientific (Shenzhen) Co., Ltd. | Left atrial appendage occluder |
| CN111110300A (en) * | 2014-12-31 | 2020-05-08 | 先健科技(深圳)有限公司 | Left auricle plugging device |
| CN111110300B (en) * | 2014-12-31 | 2021-11-16 | 先健科技(深圳)有限公司 | Left auricle plugging device |
| CN114391910A (en) * | 2014-12-31 | 2022-04-26 | 先健科技(深圳)有限公司 | Left auricle plugging device |
| CN114391910B (en) * | 2014-12-31 | 2024-05-17 | 先健科技(深圳)有限公司 | Left auricle plugging 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 |
| US10813647B2 (en) | 2016-06-15 | 2020-10-27 | Lifetech Scientific (Shenzhen) Co., Ltd | Left atrial appendage occluder |
| WO2017215371A1 (en) * | 2016-06-15 | 2017-12-21 | 先健科技(深圳)有限公司 | Left atrial appendage occluder |
| WO2019161072A1 (en) * | 2018-02-14 | 2019-08-22 | Boston Scientific Scimed, Inc. | Occlusive medical device |
| US11234706B2 (en) | 2018-02-14 | 2022-02-01 | Boston Scientific Scimed, Inc. | Occlusive medical device |
| EP3752075B1 (en) * | 2018-02-14 | 2024-06-12 | Boston Scientific Scimed Inc. | Occlusive medical device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120718 |