CN204318826U - A kind of novel cage occluder for left auricle - Google Patents
A kind of novel cage occluder for left auricle Download PDFInfo
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- CN204318826U CN204318826U CN201420704789.4U CN201420704789U CN204318826U CN 204318826 U CN204318826 U CN 204318826U CN 201420704789 U CN201420704789 U CN 201420704789U CN 204318826 U CN204318826 U CN 204318826U
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- left auricle
- occluder
- support
- support cages
- cages
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Abstract
This utility model object is to provide a kind of novel cage left auricle envelope apparatus, and described occluder for left auricle is made up of support cages, conveying locking device, fixing thorn; The technical scheme that this utility model adopts is: laser integral cutting thin-walled Nitinol pipe, both a kind of Novel left heart ear stopper had been made by heat treatment shaping, overlay film is sewed up on support cages surface, be used for stopping that thrombosis passes through left auricle, according to the occluder for left auricle of above technical scheme, there is technique is simple, reproducible, cut global formation obtains stopper reliability and precision higher, reduce production cost and be easy to large-scale production.
Description
Technical field
This utility model patent relates to a kind of insertion type technical field of medical instruments, particularly relates to a kind of stopper stoping thrombosis in left auricle to flow out and preparation method thereof.
Background technology
Current surgery life-time service left auricle excision or Closure are clinically to reduce the apoplexy risk of patients with atrial fibrillation, but surgery operating wound is large, the postoperative risk bringing patient is higher, Clinical practice is limited, the method of another kind for the treatment of atrial fibrillation apoplexy is Drug therapy, common drug comprises warfarin, aspirin and novel anticoagulant, but the existence of these medicines significantly uses limitation, internal hemorrhage during such as there is medication, dosage is bad control, and have quite a few patient medication curative effect not significantly or there is anticoagulant taboo, apoplexy hidden danger still exists.A series of research in recent years shows that percutaneous left atrial appendage occlusion art is compared with traditional therapy, the incidence rate of apoplexy can be reduced, patient for anticoagulant taboo is particularly applicable, be mainly according to a kind of stopper of the model design of left auricle through conduit release shutoff left auricle, thus reach prevention atrial fibrillation thromboembolism object, this interventional therapy method wound is less, simple to operate, consuming time less, produce effects fast.
The key equipment of shutoff left auricle is stopper, current stopper mainly comprises tubular, spheroidal and dish type two kinds, it has grasp (agnail on similar fish hook) on the bar of alloy bracket, stopper can be assisted to be fixed on left auricle inwall, the patent No. is that the Chinese patent of CN 103598902A discloses a kind of occluder for left auricle, this stopper comprises this utility model and relates to a kind of occluder for left auricle, comprises seal disc and is connected with seal disc and is positioned at the fixed mount of seal disc side; Fixed mount comprises connecting portion, multiple supporter; All supporters are connected by this thin-film body; but this patent seal disc is nitinol alloy wire and bio-soluble macromolecule to be woven into and to be connected on fixed mount; complex manufacturing process and artificial braiding process are easily introduced and are thought that factor affects the stability of seal disc performance; support body adds production process by the series connection of this thin-film body simultaneously, and therefore this stopper complex manufacturing technology large-scale production has certain difficulty.
Utility model content
This utility model object is to provide a kind of left atrial appendage occlusion apparatus, the technical scheme that this utility model adopts is: laser integral cutting thin-walled Nitinol pipe, both a kind of Novel left heart ear stopper had been made by heat treatment shaping, overlay film is sewed up on support cages surface, is used for stopping that thrombosis passes through left auricle.
In order to achieve the above object, this utility model preferably, a kind of novel cage occluder for left auricle, described left atrial appendage occlusion apparatus is made up of support cages, conveying locking device, fixing thorn; It is characterized in that, described support cages, fixing thorn are formed through cut and heat treatment shaping by NiTi pipe, and overlay film is sewed up on support cages surface, are used for stopping that thrombosis passes through left auricle, it comprises closely, brace summer, support unit far away, and the distal support beam of support cages is to axis inner bending; Described conveying locking device is positioned at support cages near-end, for being connected with induction system far-end; Described support cages is at least containing 1 fixing thorn, and fixing thorn deposits angle with support unit.
Preferably, the diameter of described support cages is 20 ~ 40mm, is the size of stopper finished heat treatment sizing rear support cage.
Preferably, described support cages comprises closely, brace summer far away and support unit, and its number is 9 ~ 18, and proximal support beam exists U-shaped bending, be beneficial to stopper compression enter delivery system under the overall leadership in, distal support beam is that the Nitinol pipe of non-cut realizes it and is interconnected.
Preferably, described fixing thorn is formed through cut bend fixing by the support unit of described support cages, and fixing thorn goes out thorn-like for support unit upper part Nitinol wall through cut, becomes the projection protruded from outside support unit after Overheating Treatment bend fixing.
Preferably, there is angle in described fixing thorn and support unit, and its angle reading is 15 ~ 45 °.
Preferably, described fixing thorn length is 1 ~ 5mm.
Preferably, described proximal support beam has U-shaped bending, and it is bending towards conveying locking device side.
Preferably, the described conveying locking device being connected to support cages near-end is female thread, for connecting induction system far-end, this female thread is that uncut Nitinol pipe forms female thread through inner tapping, this screw thread can coordinate with the external screw thread of induction system far-end, and after stopper is placed into left auricle precalculated position, rotational conveyance system realizes being separated of induction system far-end and stopper.
Preferably, one or more layers film is sewed up on the surface of described support cages, and its material is e-PTFE(expanded PTFE), PET(polyethylene terephthalate), biomembrane, thickness is 0.05 ~ 0.2mm, be sewed with overlay film in support cages proximal end face, play the effect stopping that thrombosis passes through.
Preferably, described support cages shape can be the lantern-shaped or horn-like of Cylindrical Homogeneous, intermediate projections, so-called Cylindrical Homogeneous is that stopper sizing rear support cage distally arrives proximate dimensional uniformity, the lantern-shaped of so-called intermediate projections is that stopper sizing rear support cage intermediate sizes is greater than two ends size, so-called horn-like for the rear proximate dimensional of stopper sizing and distal dimension inconsistent.
According to above scheme, this utility model possesses following advantage:
Structure meets left auricle anatomical features, is convenient to stopper and left auricle inwall is fixed.
Stopper put procedure can accurately be located, and can repeat to place before induction system does not depart from occluder for left auricle.
It is simple that occluder for left auricle has technique, the stopper reliability that reproducible, cut global formation obtains and precision higher, reduce production cost and be easy to large-scale production.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is the schematic diagram that this utility model does not sew up overlay film.
Fig. 3 be this utility model do not sew up overlay film front view.
Wherein, 1 for conveying locking device, 2 be support cages surface coating, 3 for fixing thorn, 4 be distal support beam connection tube, 5 be support cages, 6 for U-shaped bending, 7 be support unit.
Detailed description of the invention
Be described further enforcement of the present utility model below in conjunction with drawings and Examples, following examples for illustration of this utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, occluder for left auricle comprises conveying locking device 1, support cages surface coating 2, fixing thorn 3, distal support beam connection tube 4, support cages 5; Stopper can axially carry out stretching and compress and enter in conduit, the conveying locking device 1 of occluder for left auricle is that the uncut NiTi pipe of near-end is by the screw thread of surface making within it, to realize and being connected of induction system far-end, near-end mentioned in this article and far-end are in the operation process of deployment instrument, the distance of instrument positions and operator, be near-end apart near side, side far away is far-end; Described support cages overlay film is one or more layers e-PTFE(expanded PTFE), PET(polyethylene terephthalate), biomembrane; Be sewed with the support cages 5 external diameter diameter of overlay film between (20 ~ 40) mm, the complete shutoff of external diameter realization to left auricle opening of required ring seal device can be selected arbitrarily according to needs of patients.
Carry locking device 1, fixing thorn 3, distal support beam connection tube 4, support cages 5 as shown in Figures 2 and 3, U-shaped bending 6, support unit 7 is integral type structure, form through a NiTi pipe cut and heat treatment shaping.Thin-walled Nitinol pipe obtains the prototype structure of required stopper by cut, support cages 5 after described cut is containing brace summer, support unit near, far away, its number, at 9 ~ 18, cuts out the profile of fixing thorn 3 on support cages 5 surface, its surface is at least containing 1 fixing thorn 3; Stopper after cutting obtains difform stopper by heat treatment shaping, and according to the anatomical model needs of left auricle, stopper can be fixed to the lantern-shaped or horn-like of Cylindrical Homogeneous, intermediate projections; The near-end of support cages 5 bends to U-shaped, U-shaped bending 6 are obtained after heat treatment completes, it is bending towards conveying locking device 1 side, distal support beam folds to effect support cages being played to inner support to axis inflection, the projection protruded from outside support unit is become after fixing thorn 3 heat treatment shaping on support cages 5 surface, outstanding length is 1 ~ 5mm, there is angle in the fixing thorn protruded and support unit, its angle number of degrees are 15 ~ 45 °, and the oxide-film of the inside and outside and side of stopper is removed in stopper sandblasting after heat treatment shaping; Stopper after sandblasting cleans up for polishing, and after polishing, stopper wall thickness is between 1.0 ~ 3.0mm, and the bar of brace summer is wide is 0.1 ~ 2.0mm; One or more layers film of stopper support cages proximal staple after polishing completes, its material is e-PTFE(expanded PTFE), PET(polyethylene terephthalate), in biomembrane any one, thickness is 0.05 ~ 0.2mm, plays the effect stopping that thrombosis passes through.
Above-mentioned detailed description of the invention is used for explaining this utility model; instead of this utility model is limited; in the protection domain of spirit of the present utility model and claim, any amendment make this utility model and change, all at protection domain of the present utility model.
Claims (10)
1. a novel cage occluder for left auricle, described occluder for left auricle is made up of support cages, conveying locking device, fixing thorn; It is characterized in that, described support cages, fixing thorn are formed through cut and heat treatment shaping by NiTi pipe, and overlay film is sewed up on support cages surface, are used for stopping that thrombosis passes through left auricle, it comprises closely, brace summer, support unit far away, and the distal support beam of support cages can to axis inner bending; Described conveying locking device is positioned at support cages near-end, for being connected with induction system far-end; Described support cages is at least containing 1 fixing thorn, and fixing thorn exists angle with support unit.
2. the novel cage occluder for left auricle of one according to claim 1, is characterized in that, the diameter of described support cages is 20 ~ 40mm.
3. the novel cage occluder for left auricle of one according to claim 2, is characterized in that, described support cages comprises closely, brace summer far away and support unit, and its number is 9 ~ 18.
4. the novel cage occluder for left auricle of one according to claim 1, is characterized in that, described fixing thorn is formed through cut bend fixing by the support unit of described support cages.
5. the novel cage occluder for left auricle of one according to claim 1, is characterized in that, described fixing thorn and support unit exist angle, and its angle number of degrees are 15 ~ 45 °.
6. the novel cage occluder for left auricle of one according to claim 1, is characterized in that, described fixing thorn length is 1 ~ 5mm.
7. the novel cage occluder for left auricle of one according to claim 2, is characterized in that, described proximal support beam has U-shaped bending, and it is bending towards conveying locking device side.
8. the novel cage occluder for left auricle of one according to claim 1, is characterized in that, described in be connected to support cages near-end conveying locking device be female thread, for connecting induction system far-end.
9. the novel cage occluder for left auricle of one according to claim 1, is characterized in that, the surface of described support cages is sewed with one or more layers film, and its material is PET, e-PTFE, biomembrane, and thickness is 0.05 ~ 0.2mm.
10. the novel cage occluder for left auricle of one according to claim 1, is characterized in that, described support cages shape can be the lantern-shaped or horn-like of Cylindrical Homogeneous, intermediate projections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420704789.4U CN204318826U (en) | 2014-11-22 | 2014-11-22 | A kind of novel cage occluder for left auricle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420704789.4U CN204318826U (en) | 2014-11-22 | 2014-11-22 | A kind of novel cage occluder for left auricle |
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| CN204318826U true CN204318826U (en) | 2015-05-13 |
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| CN201420704789.4U Expired - Fee Related CN204318826U (en) | 2014-11-22 | 2014-11-22 | A kind of novel cage occluder for left auricle |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662512A (en) * | 2015-12-28 | 2016-06-15 | 广东脉搏医疗科技有限公司 | Atrial appendage plugging implantation material |
| CN106037863A (en) * | 2016-03-03 | 2016-10-26 | 上海普实医疗器械科技有限公司 | Left atrial appendage occluder and manufacturing method thereof |
| CN109419548A (en) * | 2017-08-21 | 2019-03-05 | 上海普实医疗器械科技有限公司 | Occluder for left auricle and its manufacturing method |
| CN109925013A (en) * | 2017-12-19 | 2019-06-25 | 先健科技(深圳)有限公司 | Plugging device |
| CN110522486A (en) * | 2019-04-22 | 2019-12-03 | 上海微创医疗器械（集团）有限公司 | Plug rack for left auricle of heart |
| US11857441B2 (en) | 2018-09-04 | 2024-01-02 | 4C Medical Technologies, Inc. | Stent loading device |
| US11931253B2 (en) | 2020-01-31 | 2024-03-19 | 4C Medical Technologies, Inc. | Prosthetic heart valve delivery system: ball-slide attachment |
| US11944537B2 (en) | 2017-01-24 | 2024-04-02 | 4C Medical Technologies, Inc. | Systems, methods and devices for two-step delivery and implantation of prosthetic heart valve |
| US11957577B2 (en) | 2017-01-19 | 2024-04-16 | 4C Medical Technologies, Inc. | Systems, methods and devices for delivery systems, methods and devices for implanting prosthetic heart valves |
| US11992403B2 (en) | 2020-03-06 | 2024-05-28 | 4C Medical Technologies, Inc. | Devices, systems and methods for improving recapture of prosthetic heart valve device with stent frame having valve support with inwardly stent cells |
| US12029647B2 (en) | 2017-03-07 | 2024-07-09 | 4C Medical Technologies, Inc. | Systems, methods and devices for prosthetic heart valve with single valve leaflet |
| US12036113B2 (en) | 2017-06-14 | 2024-07-16 | 4C Medical Technologies, Inc. | Delivery of heart chamber prosthetic valve implant |
| US12053375B2 (en) | 2020-03-05 | 2024-08-06 | 4C Medical Technologies, Inc. | Prosthetic mitral valve with improved atrial and/or annular apposition and paravalvular leakage mitigation |
-
2014
- 2014-11-22 CN CN201420704789.4U patent/CN204318826U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662512A (en) * | 2015-12-28 | 2016-06-15 | 广东脉搏医疗科技有限公司 | Atrial appendage plugging implantation material |
| CN106037863A (en) * | 2016-03-03 | 2016-10-26 | 上海普实医疗器械科技有限公司 | Left atrial appendage occluder and manufacturing method thereof |
| WO2017148102A1 (en) * | 2016-03-03 | 2017-09-08 | 上海普实医疗器械科技有限公司 | Left atrial appendage occluder and fabricating method therefor |
| US11191546B2 (en) | 2016-03-03 | 2021-12-07 | Shanghai Push Medical Device Technology Co., Ltd. | Left atrial appendage occluder and fabricating method therefor |
| US11957577B2 (en) | 2017-01-19 | 2024-04-16 | 4C Medical Technologies, Inc. | Systems, methods and devices for delivery systems, methods and devices for implanting prosthetic heart valves |
| US11944537B2 (en) | 2017-01-24 | 2024-04-02 | 4C Medical Technologies, Inc. | Systems, methods and devices for two-step delivery and implantation of prosthetic heart valve |
| US12029647B2 (en) | 2017-03-07 | 2024-07-09 | 4C Medical Technologies, Inc. | Systems, methods and devices for prosthetic heart valve with single valve leaflet |
| US12036113B2 (en) | 2017-06-14 | 2024-07-16 | 4C Medical Technologies, Inc. | Delivery of heart chamber prosthetic valve implant |
| CN109419548A (en) * | 2017-08-21 | 2019-03-05 | 上海普实医疗器械科技有限公司 | Occluder for left auricle and its manufacturing method |
| CN109925013A (en) * | 2017-12-19 | 2019-06-25 | 先健科技(深圳)有限公司 | Plugging device |
| CN109925013B (en) * | 2017-12-19 | 2021-08-31 | 先健科技(深圳)有限公司 | Plugging device |
| US11857441B2 (en) | 2018-09-04 | 2024-01-02 | 4C Medical Technologies, Inc. | Stent loading device |
| CN110522486A (en) * | 2019-04-22 | 2019-12-03 | 上海微创医疗器械（集团）有限公司 | Plug rack for left auricle of heart |
| US11931253B2 (en) | 2020-01-31 | 2024-03-19 | 4C Medical Technologies, Inc. | Prosthetic heart valve delivery system: ball-slide attachment |
| US12053375B2 (en) | 2020-03-05 | 2024-08-06 | 4C Medical Technologies, Inc. | Prosthetic mitral valve with improved atrial and/or annular apposition and paravalvular leakage mitigation |
| US11992403B2 (en) | 2020-03-06 | 2024-05-28 | 4C Medical Technologies, Inc. | Devices, systems and methods for improving recapture of prosthetic heart valve device with stent frame having valve support with inwardly stent cells |
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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: 20150513 Termination date: 20171122 |