CN204147141U - A kind of occluder for left auricle - Google Patents
A kind of occluder for left auricle Download PDFInfo
- Publication number
- CN204147141U CN204147141U CN201420530800.XU CN201420530800U CN204147141U CN 204147141 U CN204147141 U CN 204147141U CN 201420530800 U CN201420530800 U CN 201420530800U CN 204147141 U CN204147141 U CN 204147141U
- Authority
- CN
- China
- Prior art keywords
- steel bushing
- supporter
- left auricle
- anchor
- grasp
- Prior art date
- 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.)
- Expired - Fee Related
Links
Landscapes
- Prostheses (AREA)
Abstract
This utility model provides a kind of occluder for left auricle, comprise shutoff card and anchor, shutoff card inside is sewed with several pieces polyester films, the near-end of shutoff card is provided with the first steel bushing, the first steel bushing other end is provided with the first female thread for being connected with push rod, this stopper also comprises supporter, the far-end of shutoff card is provided with the second steel bushing, second steel bushing near-end is for tightening up the nitinol alloy wire of shutoff card, far-end tightens up the nitinol alloy wire in supporter mesh grid, the near-end of supporter is tightened up the titanium-nickel wire of proximal support body mesh grid by the second steel bushing, far-end tightens up the titanium-nickel wire of distal support body mesh grid by the 3rd steel bushing, the other end of the 3rd steel bushing is provided with the second female thread for connecting anchor.This utility model selectivity is wide, fixation, can according to different left auricle architectural feature, selection has anchor parts or carries out shutoff left auricle without anchor parts, according to the different shape of left auricle, adopt shutoff card and the fixed combination of supporter, the mode that anchor and supporter selectivity combine.
Description
Technical field
This utility model relates to a kind of stopper, specifically a kind of occluder for left auricle.
Background technology
At present, the plugging device of domestic and international development has more than ten to plant, basic structure is the spherical and double plate shape of approximate circle, and the disc of auricle side has agnail, and the structure of domestic and international several occluder for left auricle all adopts fashion of barbs, its card is positioned over left auricle opening part, barb is fixed on left auricle inner chamber upper limb position, due to coming in every shape of left auricle pouch, although the barb arranged in shutoff card can be fixed near left auricle upper limb, because distance left auricle opening is comparatively near, easily causes and come off; Shutoff face is filled in left auricle porch simultaneously, can not form smooth wall cavity, easily occur secondary cavity, there is again the risk of thromboembolism with left atrium; In addition, because left auricle comes in every shape, particularly for the structure that sleeve configuration left auricle is special, need the stopper corresponding cooperation to realize fixedly securing of stopper.
Utility model content
The purpose of this utility model is to provide a kind of occluder for left auricle, solves because left auricle comes in every shape, and particularly for the structure that sleeve configuration left auricle is special, needs the stopper corresponding cooperation to realize the problem fixedly secured of stopper.
In order to achieve the above object, this utility model is achieved through the following technical solutions:
This utility model provides a kind of occluder for left auricle, this occluder for left auricle is made by high resiliency nitinol alloy wire and medical stainless steel material, comprise shutoff card and anchor, shutoff card inside is sewed with several pieces polyester films to stop blood flow, the near-end of shutoff card is provided with the first steel bushing, first steel bushing is for tightening up the nitinol alloy wire of shutoff card mesh grid one end, the first steel bushing other end is provided with the first female thread for being connected with push rod, this stopper also comprises supporter, the far-end of shutoff card is provided with the second steel bushing, second steel bushing near-end is for tightening up the nitinol alloy wire of shutoff card, far-end tightens up the nitinol alloy wire in supporter mesh grid, the near-end of supporter is tightened up the titanium-nickel wire of proximal support body mesh grid by the second steel bushing, far-end tightens up the titanium-nickel wire of distal support body mesh grid by the 3rd steel bushing, the other end of the 3rd steel bushing is provided with the second female thread for connecting anchor.
Further improvement of the utility model is: be evenly distributed 16 the second grasps at the circumference of supporter, second grasp far-end is provided with the second ball, second grasp is made by nitinol alloy wire, the mesh grid of the second grasp near-end and supporter is tightened up in the second steel bushing, second grasp is evenly distributed along supporter outer rim and is connected in supporter mesh grid, the barb of the second grasp far-end is to periphery scattering, and outstanding supporter outer rim.
Further improvement of the utility model is: anchor comprises eight the first grasps, the 5th steel bushing, spring and the 4th steel bushing, bolt is provided with in one end of the 4th steel bushing, bolt is used for being connected with the second female thread spiral of the 3rd steel bushing, the other end of the 4th steel bushing is connected with spring compresses, the other end of spring and the 5th steel bushing squeeze flow, the near-end of eight the first grasps tightens up in the 5th steel bushing, and the far-end of the first grasp is provided with the first ball in case puncture left auricle.
Further improvement of the utility model is: shutoff card works out in the form of annular discs by high resiliency nitinol alloy wire.
Further improvement of the utility model is: supporter is woven in cylindrical-shaped structure by high resiliency titanium-nickel wire.
Further improvement of the utility model is: the nitinol alloy wire of the first grasp, the second grasp and anchor is high resiliency memorial alloy, and the Nitinol filament diameter of the first grasp, the second grasp and anchor is all greater than the diameter of shutoff card and supporter mesh grid B alloy wire.
The beneficial effects of the utility model: this utility model provides a kind of occluder for left auricle, the first steel bushing is depressed in card center, and height is substantially concordant with card, is easy to cell telencephalization and regeneration, reduces thrombosed risk, shutoff card diameter falls to being greater than left auricle opening diameter, and shutoff card fits in opening part shutoff left auricle, stops that left atrium blood flows to left auricle, supporter adopts cylindrical structure, is released to left auricle opening and can fully supports left auricle inner chamber upper limb, enter in pectinate muscles groove, make its fixation, be not easily shifted by barb after being stretched, according to the architectural feature of left auricle, can alternatively be used the stopper of band anchor, due to the structure irregularity of left auricle, can adopt sleeve configuration structure and insert left auricle lower edge position by after anchor connection, owing to being that spiral connects and can arbitrarily install between anchor and supporter, to the selectivity of apparatus more for convenience, anchor and stopper adopt spring to be connected, spring conveniently can regulate direction as connecting rod, because spring is softer, laterally can swing, anchor all can discharge at the diverse location of left auricle, by spring, an inside pulling force is applied to supporter, due to the elastic reaction of spring, the fine setting of longitudinal pulling force and distance can be realized, good effect is fixed with to sleeve configuration occluder for left auricle, anchor is as spare unit, after increasing anchor, good fixation is had to long and narrow type left auricle, anchor adds a pulling force to stopper, the probability making it come off reduces greatly, anchor can be connected with the 3rd steel bushing female thread spiral during use, without the need to installing when not needing.
This utility model selectivity is wide, fixation, can according to different left auricle architectural feature, selection has anchor parts or carries out shutoff left auricle without anchor parts, according to the different shape of left auricle, adopt shutoff card and the fixed combination of supporter, the mode that anchor and supporter selectivity combine, according to the architectural feature of clinical radiography determination left auricle, for sleeve configuration left auricle structure, select the stopper of mounting strap anchor, the specification of anchor is different, can choice for use, be connected in one by spiral, because anchor discharges at left auricle lower edge, eight grasps stretch in pectinate muscles groove, the position of mooring anchor, by spring, one pulling force is applied to supporter, due to the soft of spring and elasticity, the off-position of anchor laterally can swing, fore-and-aft distance can be finely tuned, by the additional pulling force of anchor and the effect of supporter grasp, stopper can fixation, because shutoff card diameter falls to being greater than left auricle opening diameter, card fits in opening, integrated cavity is formed with left atrium, the secondary cavity avoiding shutoff to cause, there is again the risk of thromboembolism.
Accompanying drawing explanation
Fig. 1: the front view of this utility model occluder for left auricle.
Fig. 2: this utility model shutoff card top view.
Fig. 3: the top view of this utility model supporter.
Fig. 4: the top view of this utility model anchor.
Fig. 5: this utility model occluder for left auricle income sheath pipe schematic diagram.
Fig. 6: this utility model occluder for left auricle implants schematic diagram.
Wherein: 1-first steel bushing, 2-shutoff card, 3-polyester film, 4-second steel bushing, 5-supporter, 6-second grasp, 7-second ball, 8-the 3rd steel bushing, 9-the 4th steel bushing, 10-spring, 11-first ball, 12-first grasp, 13-the 5th steel bushing, 14-bolt, 15-second female thread, 16-first female thread, 17-push rod, 18-sheath pipe, 19-barb.
Detailed description of the invention
In order to deepen, to understanding of the present utility model, to be described in further detail this utility model below in conjunction with drawings and Examples, the present embodiment, only for explaining this utility model, not forming protection domain of the present utility model and limiting.
Embodiment as shown in figures 1 to 6, the present embodiment provides a kind of occluder for left auricle, this occluder for left auricle is made by high resiliency nitinol alloy wire and medical stainless steel material, comprise shutoff card 2 and anchor, described shutoff card 2 works out in the form of annular discs by high resiliency nitinol alloy wire, described shutoff card 2 inside is sewed with several pieces polyester films 3 to stop blood flow, the near-end of described shutoff card 2 is provided with the first steel bushing 1, described first steel bushing 1 is for tightening up the nitinol alloy wire of shutoff card 2 mesh grid one end, described first steel bushing 1 other end is provided with the first female thread 16 for being connected with push rod 17, this stopper also comprises supporter 5, 16 the second grasps 6 are evenly distributed at the circumference of described supporter 5, described second grasp 6 far-end is provided with the second ball 7, described second grasp 6 is made by nitinol alloy wire, the mesh grid of described second grasp 6 near-end and supporter 5 is tightened up in the second steel bushing 4, described second grasp 6 is evenly distributed along supporter 5 outer rim and is connected in supporter mesh grid, the barb 19 of described second grasp 6 far-end is to periphery scattering, and outstanding described supporter 5 outer rim, described supporter 5 weaves in cylindrical-shaped structure by high resiliency titanium-nickel wire, the far-end of described shutoff card 2 is provided with the second steel bushing 4, described second steel bushing 4 near-end is for tightening up the nitinol alloy wire of described shutoff card 2, far-end tightens up the nitinol alloy wire in the mesh grid of described supporter 5, the near-end of described supporter 5 is tightened up the titanium-nickel wire of supporter 5 mesh grid described in near-end by the second steel bushing 4, far-end tightens up the titanium-nickel wire of supporter 5 mesh grid described in far-end by the 3rd steel bushing 8, the other end of described 3rd steel bushing 8 is provided with the second female thread 15 for connecting described anchor, described anchor is by eight the first grasps 12, 5th steel bushing 13, spring 10 and the 4th steel bushing 9 form, bolt 14 is provided with in one end of described 4th steel bushing 9, described bolt 14 is for being connected with the second female thread 15 spiral of described 3rd steel bushing 8, the other end of described 4th steel bushing 9 and described spring 10 squeeze flow, the other end of described spring 10 and described 5th steel bushing 13 squeeze flow, the near-end of eight described first grasps 12 tightens up in described 5th steel bushing 13, the far-end of described first grasp 12 is provided with the first ball 11 in case puncture left auricle, described first grasp 12, the nitinol alloy wire of the second grasp 6 and anchor is high resiliency memorial alloy, described first grasp 12, the diameter of the second grasp 6 and anchor is all greater than the diameter of described shutoff card 2 and supporter 5 mesh grid B alloy wire.
Design and material illustrates: shutoff card 2 by hand-knitted mode by nitinol alloy wire establishment in a tubular form, rear and steel bushing squeeze flow are tightened up in two ends, by thermal finalization structure in the form of annular discs, supporter 5 weaves in cylindric by nitinol alloy wire, near-end mesh grid and ten six roots of sensation second grasps are tightened up in the second steel bushing 4 in the lump, the other end of supporter 5 mesh grid tightens up in the 3rd steel bushing 8, the grasp of supporter 5 and the mesh grid of supporter 5 connect together, and to carry out sizing heat treatment be cylindric, and shutoff card 2 inside is sewed with several polyester film layer 3 to stop blood flow.
Anchor is by nitinol alloy wire, stainless steel sleeve and spring 10 form, by the welding of nitinol alloy wire one end in spherical shape, then be grasp shape by thermal finalization, grasp tightens up squeeze flow in steel bushing, spring 10 two ends also with steel bushing squeeze flow, steel bushing spiral with bolt is connected to the female thread of supporter 5 far-end, all steel bushings have medical grade rustless steel to make, spring is medical stainless steel spring, shutoff card 2 and supporter 5 mesh grid form by the braiding of high resiliency memory alloy wire, all steel bushings by medical stainless steel 316L through mechanical Precision Machining gained, polyester film is medical grade nonwoven polyester film, the stitching thread of fixing polyester film is medical polyester suture line.
Operation principle: this utility model utilizes the memory function of high resiliency nitinol alloy wire, by external force, stopper is drawn in sheath pipe 18 in a linear, percutaneous puncture, set up transport path, through postcava, right atrium, atrial septal puncture point, left atrium, arrive left auricle again, the anchor of this stopper is released in bottom left auricle, anchor after opening is in " umbrella " structure, eight barbs stretch in left auricle flesh wall groove, continue recession sheath pipe, supporter mesh grid discharges at left auricle upper limb and opens, specification size is selected according to the columned diameter of supporter, grasp on supporter is propped up towards periphery, barb puts in the pectinate muscles groove of left auricle, its supporter is made to be fixed on the opening part of left auricle, remove sheath pipe after a while, the release of shutoff card is opened, the shutoff of shutoff card is at the opening part of left auricle, because shutoff card diameter falls to being greater than left auricle opening, what applied by spring bottom left auricle by the pulling force of supporter barb and anchor is made a concerted effort, shutoff card is made to fit closely, fixed.
This utility model selectivity is wide, fixation, can according to different left auricle architectural feature, selection has anchor parts or carries out shutoff left auricle without anchor parts, according to the different shape of left auricle, adopt shutoff card and the fixed combination of supporter, the mode that anchor and supporter selectivity combine, according to the architectural feature of clinical radiography determination left auricle, for sleeve configuration left auricle structure, select the stopper of mounting strap anchor, the specification of anchor is different, can choice for use, be connected in one by spiral, because anchor discharges at left auricle lower edge, eight grasps stretch in pectinate muscles groove, the position of mooring anchor, by spring, one pulling force is applied to supporter, due to the soft of spring and elasticity, the off-position of anchor laterally can swing, fore-and-aft distance can be finely tuned, by the additional pulling force of anchor and the effect of supporter grasp, stopper can fixation, because shutoff card diameter falls to being greater than left auricle opening diameter, card fits in opening, integrated cavity is formed with left atrium, the secondary cavity avoiding shutoff to cause, there is again the risk of thromboembolism, first steel bushing is depressed in card center, and height is substantially concordant with card, is easy to cell telencephalization and regeneration, reduces thrombosed risk, shutoff card diameter falls to being greater than left auricle opening diameter, and shutoff card fits in opening part shutoff left auricle, stops that left atrium blood flows to left auricle, supporter adopts cylindrical structure, is released to left auricle opening and can fully supports left auricle inner chamber upper limb, enter in pectinate muscles groove, make its fixation, be not easily shifted by barb after being stretched, according to the architectural feature of left auricle, can alternatively be used the stopper of band anchor, due to the structure irregularity of left auricle, can adopt sleeve configuration structure and insert left auricle lower edge position by after anchor connection, owing to being that spiral connects and can arbitrarily install between anchor and supporter, to the selectivity of apparatus more for convenience, anchor and stopper adopt spring to be connected, spring conveniently can regulate direction as connecting rod, because spring is softer, laterally can swing, anchor all can discharge at the diverse location of left auricle, by spring, an inside pulling force is applied to supporter, due to the elastic reaction of spring, the fine setting of longitudinal pulling force and distance can be realized, good effect is fixed with to sleeve configuration occluder for left auricle, anchor is as spare unit, after increasing anchor, good fixation is had to long and narrow type left auricle, anchor adds a pulling force to stopper, the probability making it come off reduces greatly, anchor can be connected with the 3rd steel bushing female thread spiral during use, without the need to installing when not needing.
Claims (6)
1. an occluder for left auricle, this occluder for left auricle is made by high resiliency nitinol alloy wire and medical stainless steel material, comprise shutoff card (2) and anchor, described shutoff card (2) inside is sewed with several pieces polyester films (3) to stop blood flow, the near-end of described shutoff card (2) is provided with the first steel bushing (1), described first steel bushing (1) is for tightening up the nitinol alloy wire of shutoff card (2) mesh grid one end, described first steel bushing (1) other end is provided with the first female thread (16) for being connected with push rod (17), it is characterized in that: this stopper also comprises supporter (5), the far-end of described shutoff card (2) is provided with the second steel bushing (4), described second steel bushing (4) near-end is used for the nitinol alloy wire tightening up described shutoff card (2), far-end tightens up the nitinol alloy wire in described supporter (5) mesh grid, the near-end of described supporter (5) is tightened up the titanium-nickel wire of supporter described in near-end (5) mesh grid by the second steel bushing (4), far-end tightens up the titanium-nickel wire of supporter described in far-end (5) mesh grid by the 3rd steel bushing (8), the other end of described 3rd steel bushing (8) is provided with the second female thread (15) for connecting described anchor.
2. a kind of occluder for left auricle according to claim 1, it is characterized in that: be evenly distributed 16 the second grasps (6) at the circumference of described supporter (5), described second grasp (6) far-end is provided with the second ball (7), described second grasp (6) is made by nitinol alloy wire, the mesh grid of described second grasp (6) near-end and supporter (5) is tightened up in the second steel bushing (4), described second grasp (6) is evenly distributed along supporter (5) outer rim and is connected in supporter mesh grid, the barb (19) of described second grasp (6) far-end is to periphery scattering, and outstanding described supporter (5) outer rim.
3. a kind of occluder for left auricle according to claim 2, it is characterized in that: described anchor is by eight the first grasps (12), 5th steel bushing (13), spring (10) and the 4th steel bushing (9) composition, bolt (14) is provided with in one end of described 4th steel bushing (9), described bolt (14) is for being connected with the second female thread (15) spiral of described 3rd steel bushing (8), the other end of described 4th steel bushing (9) and described spring (10) squeeze flow, the other end of described spring (10) and described 5th steel bushing (13) squeeze flow, the near-end of eight described first grasps (12) tightens up in described 5th steel bushing (13), the far-end of described first grasp (12) is provided with the first ball (11) in case puncture left auricle.
4. a kind of occluder for left auricle according to claim 1, is characterized in that: described shutoff card (2) works out in the form of annular discs by high resiliency nitinol alloy wire.
5. a kind of occluder for left auricle according to claim 1, is characterized in that: described supporter (5) is woven in cylindrical-shaped structure by high resiliency titanium-nickel wire.
6. a kind of occluder for left auricle according to claim 3, it is characterized in that: the nitinol alloy wire of described first grasp (12), the second grasp (6) and anchor is high resiliency memorial alloy, the Nitinol filament diameter of described first grasp (12), the second grasp (6) and anchor is all greater than the diameter of described shutoff card (2) and supporter (5) mesh grid B alloy wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530800.XU CN204147141U (en) | 2014-09-16 | 2014-09-16 | A kind of occluder for left auricle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530800.XU CN204147141U (en) | 2014-09-16 | 2014-09-16 | A kind of occluder for left auricle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204147141U true CN204147141U (en) | 2015-02-11 |
Family
ID=52505301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420530800.XU Expired - Fee Related CN204147141U (en) | 2014-09-16 | 2014-09-16 | A kind of occluder for left auricle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204147141U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105434082A (en) * | 2014-09-16 | 2016-03-30 | 徐州亚太科技有限公司 | Left auricle plugging device |
| CN105520765A (en) * | 2016-01-29 | 2016-04-27 | 上海形状记忆合金材料有限公司 | Recessed left aurcle plugging device |
| WO2017113646A1 (en) * | 2015-12-31 | 2017-07-06 | 先健科技(深圳)有限公司 | Left atrial appendage occluder |
| CN107233114A (en) * | 2016-03-28 | 2017-10-10 | 上海微创医疗器械（集团）有限公司 | Occluder for left auricle |
| 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 |
| CN108969033A (en) * | 2018-07-25 | 2018-12-11 | 汪建军 | A kind of preventing thrombosis plugging device |
| CN109464173A (en) * | 2018-12-20 | 2019-03-15 | 先健科技(深圳)有限公司 | Plugging device |
| CN114699218A (en) * | 2022-06-08 | 2022-07-05 | 北京天星博迈迪医疗器械有限公司 | Self-sealing balloon |
-
2014
- 2014-09-16 CN CN201420530800.XU patent/CN204147141U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105434082A (en) * | 2014-09-16 | 2016-03-30 | 徐州亚太科技有限公司 | 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 |
| US11779319B2 (en) | 2015-07-13 | 2023-10-10 | Marvel Medical Technologies LLC | Method and device for left atrial appendage closure |
| WO2017113646A1 (en) * | 2015-12-31 | 2017-07-06 | 先健科技(深圳)有限公司 | Left atrial appendage occluder |
| CN105520765A (en) * | 2016-01-29 | 2016-04-27 | 上海形状记忆合金材料有限公司 | Recessed left aurcle plugging device |
| CN107233114A (en) * | 2016-03-28 | 2017-10-10 | 上海微创医疗器械（集团）有限公司 | Occluder for left auricle |
| CN108969033A (en) * | 2018-07-25 | 2018-12-11 | 汪建军 | A kind of preventing thrombosis plugging device |
| CN109464173A (en) * | 2018-12-20 | 2019-03-15 | 先健科技(深圳)有限公司 | Plugging device |
| CN109464173B (en) * | 2018-12-20 | 2024-04-02 | 先健科技(深圳)有限公司 | Plugging device |
| CN114699218A (en) * | 2022-06-08 | 2022-07-05 | 北京天星博迈迪医疗器械有限公司 | Self-sealing balloon |
| CN114699218B (en) * | 2022-06-08 | 2022-08-16 | 北京天星博迈迪医疗器械有限公司 | Self-sealing balloon |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204147141U (en) | A kind of occluder for left auricle | |
| CN105434082A (en) | Left auricle plugging device | |
| CN102046094B (en) | Device for closing defects in the vascular system | |
| CN104352260B (en) | Left atrial appendage occlusion system | |
| CN114287987B (en) | Left auricle plugging device | |
| CN204147142U (en) | A kind of combination type occluder for left auricle | |
| CN209437312U (en) | Split type occluder for left auricle | |
| CN204181743U (en) | Stopper | |
| CN109464173B (en) | Plugging device | |
| CN104856741A (en) | Transcatheter left atrial appendage plugging system | |
| CN105476683A (en) | Combined left aurcle occluding device | |
| CN204092085U (en) | A kind of percutaneous occluder for left auricle | |
| CN106923885B (en) | Occluder for left auricle | |
| CN107397561A (en) | A kind of oval hole plugging device | |
| CN106618659B (en) | Occluder for left auricle | |
| CN110037759A (en) | A kind of catheter sheath of adjustable opening | |
| CN207707958U (en) | A kind of medical tissue folder release device | |
| CN105326536A (en) | Percutaneous left atrial appendage occluder | |
| CN208435687U (en) | A kind of oval hole plugging device | |
| CN208145027U (en) | A kind of stifled instrument of double corsets of no film | |
| CN109875642A (en) | One kind taking pin device | |
| CN207370922U (en) | Mammary gland patient's postoperative drainage fixing device | |
| CN209996397U (en) | Left auricle plugging device | |
| CN203915146U (en) | Overlay film frame | |
| CN201409999Y (en) | Congenital heart disease occluder |
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 |
Granted publication date: 20150211 Termination date: 20210916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |