CN204133530U - Occluder for left auricle - Google Patents
Occluder for left auricle Download PDFInfo
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- CN204133530U CN204133530U CN201420568248.3U CN201420568248U CN204133530U CN 204133530 U CN204133530 U CN 204133530U CN 201420568248 U CN201420568248 U CN 201420568248U CN 204133530 U CN204133530 U CN 204133530U
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- card
- left auricle
- connecting portion
- occluder
- jointing
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Abstract
This utility model provides a kind of occluder for left auricle, comprise the interior card with the braiding of shape memory silk thread and outer card, described interior card is connected by connecting portion with the center of outer card, described connecting portion is a prefabricated bar, described interior card and outer card are separately fixed at the two ends of connecting portion, be equipped with choked flow film in described interior card and outer card, described outer card is provided with jointing.Preferably, described connecting portion is the tubular structure with inner chamber, is provided with through hole in described jointing, and described connecting portion is connected with jointing, and the through hole of the inner chamber of connecting portion and jointing communicates, and forms a transfer passage.This utility model is implanted from the outside of left auricle, belong to the operation of surgery mini-invasive incision, and doctor can look at left auricle straight, not only simplify operation process, improve the safety of operation, more importantly significantly reduces the misery of patient.In addition this utility model is provided with transfer passage, facilitates in operation process to human body injection of medicine or developing agent.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly relates to a kind of stopper for left atrial appendage occlusion.
Background technology
Atrial fibrillation (atrial fibrillation) is one of a kind of arrhythmia the most common clinically, crowd's sickness rate about 0.89%, and wherein sickness rate increases with the age and increases.Atrial fibrillation is except bringing out and increase the weight of except heart failure, apoplexy and other Cardioversions can also be caused, about there is the patients with atrial fibrillation generation apoplexy of 5% every year, and the fatality rate that apoplexy causes and disability rate are up to 50%, therefore how to prevent or to reduce the apoplexy caused because of atrial fibrillation thrombosis significant.Multinomial clinical research in recent years shows to carry out to left auricle the risk of stroke that shutoff can reduce patients with atrial fibrillation.At present, the left atrial appendage occlusion art of main flow is in the world percutaneous puncture percutaneous transcatheter closure, its operation process is complicated, and need interatrial septum of puncturing, operating difficulty is larger, apparatus used is comparatively complicated, and in operation process, the general X-ray that uses is as guiding, and it has doctor and patient must radiation injury.In addition, implantation position and the plugging effect of determining stopper is also needed in the operation process of percutaneous puncture percutaneous transcatheter closure, prior art is realized by X-ray or ultrasonic development, realize by inserting a development sheath pipe in its operating process, but for left auricle surgery intervene operation, if insert development sheath pipe just to need to set up development passage, development passage will enter right atrium from venipuncture, and then interatrial septum of puncturing enters left atrium, this method not only increases the complexity of operation, and adds the injury to patient.
The patent No. is that the Chinese patent of ZL 200620068478.9 discloses a kind of occluder for left auricle automatically can located in left auricle, that it comprises nitinol alloy wire braiding, that surface is cancellated support and installs in the bracket isolating membrane, it is characterized in that described support to be connected with the cylindrical locating dowel of hollow by the plate-like block head of hollow to form, the external diameter of plate-like block head is greater than the external diameter of cylindrical locating dowel; In plate-like block head and cylindrical locating dowel, all isolating membrane is installed; Plate-like block head get along well cylindrical locating dowel be connected one side on transmission union joint is installed.This patent implants stopper by above-mentioned percutaneous puncture percutaneous transcatheter closure, although it also can complete shutoff, because its operation process is complicated, the determination that is not easy to stopper position, so when actual operation still Shortcomings part.So, how to reduce the complexity of performing the operation, reduce the injury of patient, when being convenient to determine to perform the operation simultaneously the position of stopper plugging effect become those skilled in the art's technical problem urgently to be resolved hurrily.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of occluder for left auricle implanted from left auricle external puncture, can ensure block-up position and plugging effect, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, this utility model adopts following technical scheme: a kind of occluder for left auricle, comprise the interior card with the braiding of shape memory silk thread and outer card, described interior card is connected by connecting portion with the center of outer card, described connecting portion is a prefabricated bar, described interior card and outer card are separately fixed at the two ends of connecting portion, are equipped with choked flow film in described interior card and outer card, and described outer card is provided with jointing.
Preferably, described connecting portion is the tubular structure with inner chamber, is provided with through hole in described jointing, and described connecting portion is connected with jointing, and the through hole of the inner chamber of connecting portion and jointing communicates, and forms a transfer passage.
Further, described transfer passage is provided with check valve at the opening part near interior card one end.
Further, described check valve can only membrane that inwardly card side is opened be made up of the opening closing described transfer passage.
Further, described connecting portion is the spring-backed quill that a length can be stretched.
Further, described spring-backed quill is made up of a spring, elastica and end pipe, described end pipe is fixed on the center of interior card, one end of described spring is connected with end pipe, the other end of spring is connected with jointing, described elastica is coated on outside spring, and the two ends of elastica are managed with end respectively, jointing is connected, and forms a sleeve pipe.
Preferably, described interior card is hemispherical, its planar end surface side card toward the outside.
Preferably, outside the greatest circle side face of described interior card, be evenly provided with multiple anchor thorn, the card side toward the outside, tip of described anchor thorn.
Preferably, the shape memory silk thread for weaving interior card is thicker than the shape memory silk thread for weaving outer card.
Preferably, described shape memory silk thread is nitinol alloy wire.
As mentioned above, this utility model occluder for left auricle, has following beneficial effect:
1, this utility model is implanted from the outside of left auricle, belongs to the operation of surgery mini-invasive incision, not only simplify operation process, more importantly significantly reduce the misery of patient.
2, this utility model directly implants occluder for left auricle in left auricle upper shed, so doctor can look at left auricle straight carry out operation technique, for the operation of doctor brings great convenience, shorten operating time, operation process is safer.
3, this utility model is provided with transfer passage, facilitates injection of medicine or developing agent in operation process, avoids using additional being specifically designed to delivering medicament or developing agent conduit in operation process to the injury that human body causes.Transfer passage facilitates doctor to operate and whether the position of observing stopper puts in place, whether success of performing the operation, and further reduces the injury to patient, reduces operating difficulty, and improve the safety of operation further.
Accompanying drawing explanation
Fig. 1 is the first embodiment schematic diagram of the present utility model.
Fig. 2 is the second embodiment schematic diagram of the present utility model.
Fig. 3 is the third embodiment schematic diagram of the present utility model.
Fig. 4 is the 4th kind of embodiment schematic diagram of the present utility model.
Fig. 5 is the A place enlarged drawing in Fig. 4.
Fig. 6 is fundamental diagram of the present utility model.
In figure: the outer card of card 12 in 11
13 connecting portion 131 membranes
132 spring 133 elasticas
14 anchors sting 2 choked flow films
3 jointing 4 left auricle
5 left atriums
Detailed description of the invention
The structure that Figure of description illustrates, ratio, size etc., content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of this utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that this utility model can produce and the object that can reach, all should still drop in scope that technology contents that this utility model discloses can contain.Simultaneously, quote in this description as " on ", D score, "front", "rear", the term such as " centre ", also only for ease of understanding of describing, and be not used to limit the enforceable scope of this utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of this utility model.
Be illustrated in figure 1 a kind of occluder for left auricle of this utility model, comprise the interior card 11 with the braiding of shape memory silk thread and outer card 12, described interior card 11 is connected by connecting portion 13 with outer card 12, described connecting portion 13 is prefabricated bars, and described interior card 11 and outer card 12 are separately fixed at the two ends of connecting portion 13.So-called prefabricated bar, refer to that connecting portion 13 is the components manufactured separately, be not woven by shape memory silk thread together with outer card 12 with interior card 11 to form, the surface of connecting portion 13 does not also have mesh.Be equipped with choked flow film 2 in described interior card 11 and outer card 12, described outer card 12 is provided with jointing 3, and wherein, the diameter of card 11 and outer card 12 is all much larger than the diameter of connecting portion 13.
As shown in Figure 2, in a kind of preferred implementation of the present utility model, connecting portion 13 is the tubular structures with inner chamber, through hole is provided with in described jointing 3, described connecting portion 13 is connected with jointing 3, and the through hole of the inner chamber of connecting portion 13 and jointing 3 communicates, form a transfer passage, described transfer passage can be used for carrying contrast agent or medicine.Further, described transfer passage is provided with check valve in the one end near interior card 11, and contrast agent can not be refluxed, and also anti-Hemostatic Oral Liquid flows out left auricle from transfer passage simultaneously.As shown in Figure 5, the simplest check valve of a kind of structure is by for closing the opening of this transfer passage, and can only membrane 131 that inwardly card side is opened form.The film of choked flow described in the present embodiment 2 is the macromolecular materials such as PTFE (politef), and described shape memory silk thread is nitinol alloy wire.Interior card 11 described in this utility model, outer card 12 and connecting portion 13 are independently structure, during use, three are formed an entirety by laser weld.The connecting portion 13 of this device is carefully more a lot of than the mid portion of conventional occluder for left auricle, and also do not need to strut when implanting left auricle, the opening at left auricle place when can reduce to greatest extent to perform the operation, accelerates the healing rate of opening, alleviate the misery of patient.
In the present embodiment, described connecting portion 13 is spring-backed quills that a length can be stretched, and it can have numerous embodiments, the structures such as such as, corrugated tube shown in Fig. 3.In the optimal way of the present embodiment, as shown in Figure 4,5, described spring-backed quill is made up of a spring 132, elastica 133 and end pipe 134, described end pipe 134 is fixed on the center of interior card 11, one end of described spring 132 is connected with end pipe 134, and the other end of spring 132 is connected with jointing 3, and described elastica 133 is coated on outside spring 132, the two ends of elastica 133 are connected with end pipe 134, jointing 3 respectively, form a sleeve pipe.Connecting portion 13 in the present embodiment has the performance of elastic telescopic, therefore interior card 11 and outer card 12 can be made to clamp left auricle by elastic clamping power.Elastica 133 in the present embodiment is the macromolecular materials such as PTFE (politef), PE (polyethylene) or PET (polyethylene terephthalate).
This utility model is that puncture is implanted outside left auricle when operation, so adopt the design of two cards, interior card 11 is in order to be supported on left atrial appendage, and anti-Hemostatic Oral Liquid enters the cavity interior formation thrombosis of left auricle, thus plays the effect of prevention blood vessel embolism; Outer card 12 plays spacing effect outside left auricle, prevents this device from coming off and enters left atrium.Because this device hangs over outside left auricle, therefore outer card 12 needs little as far as possible, to reduce the area occupied in human body, avoid interference its hetero-organization of human body or organ, and interior card 11 is because will play the effect be supported in left auricle, therefore then need a little large a bit, and then can the whole left auricle of shutoff being supported on wherein.In addition, because the interior card 11 in this device will ensure stable support effect in left auricle, so the Nitinol filament diameter of card 11 is thicker to ensure to provide good enabling capabilities in braiding; And outer card 12 is outside left auricle, so the Nitinol filament diameter of the outer card 12 of braiding is thinner to reduce hardness, prevent from damaging tissue.Further, through the verification experimental verification of utility model people, in this device, in braiding, the Nitinol filament diameter of card 11 is 0.11mm ~ 0.20mm, the Nitinol filament diameter weaving outer card 12 is 0.01mm ~ 0.10mm, and within the scope of this, the diameter of card 11 and outer card 12 is optimum diameter.
As shown in Fig. 1,2,3 or 4, in described in the present embodiment, card 11 is hemispherical, its planar end surface side card 12 toward the outside.Interior card 11 adopts hemispheric design can be convenient to it and struts release: interior card 11 directly can strut when implanting in left auricle as umbrella; Meanwhile, be designed to hemispherical, allow interior card 11 be convex shape towards left ventricle side, the tension force on interior card 11 surface can be improved, prevent from producing depression because it is subject to blood pressure and then forming thrombosis.Therefore the hemisphere face design of this device effectively can ensure plugging effect, prevents thrombosis.
In the present embodiment, outside the greatest circle side face of described interior card 11, be evenly provided with multiple anchor thorn 14, card 12 side toward the outside, tip of described anchor thorn 14.Anchor thorn 14 can the location of subsidiary book device in left auricle, prevents from skidding off from left auricle; Simultaneously because anchor thorn 14 is also nickel-titanium alloy material, there is good bending property, therefore can not affect release and the recovery of this device.
Shown in composition graphs 3,4,5, the implementation method of this utility model when performing the operation is: after the left intercostal of patient is cut out minimal incision *, again left auricle 4 is cut out opening, use ultrasonic guidance, again delivery sheath is implanted in left auricle 4, then the jointing 3 of this device is connected with means of delivery, outside left auricle 4, is fed into left auricle 4 by delivery sheath; Can be fitted on the inwall of left auricle 4 after the interior card 11 of this device discharges from delivery sheath, simultaneously, the inwall that anchor thorn 14 is also supported on left auricle 4 determines the position of whole device further, then pull back outside delivery sheath to left auricle 4, the open outer side allowing outer card 12 be stuck in left auricle 4 to cut out.Choked flow film 2 in interior card 11 can block blood enter in left auricle 4 effectively, and the choked flow film 2 in outer card 12 can prevent the blood oozed out from flowing out.Because outer card 12 is stuck in opening part, so the two ends of this device are clipped in the middle by left auricle, this device both can not be slided in left atrium 5, can not come off from left auricle 4 again.After this device is placed, by the transfer passage of this device conveying contrast agent, determine the position of this device by contrast agent and whether block defect mouth completely, confirm errorless after, delivery sheath is recalled, completes the installation of occluder for left auricle.
In sum, a kind of occluder for left auricle of this utility model, when can solve shutoff left auricle, position inconvenience is determined, locates inaccurate problem.So this utility model effectively overcomes practical problems more of the prior art thus has very high value and use meaning.
Above-mentioned embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting this utility model.This utility model also has many aspects can improve under the prerequisite of overall thought, all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or change for person skilled in the art scholar.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that this utility model discloses, must be contained by claim of the present utility model.
Claims (10)
1. an occluder for left auricle, it is characterized in that: comprise the interior card (11) with the braiding of shape memory silk thread and outer card (12), described interior card (11) is connected by connecting portion (13) with the center of outer card (12), described connecting portion (13) is a prefabricated bar, described interior card (11) and outer card (12) are separately fixed at the two ends of connecting portion (13), choked flow film (2) is equipped with in described interior card (11) and outer card (12), described outer card (12) is provided with jointing (3).
2. occluder for left auricle according to claim 1, it is characterized in that: described connecting portion (13) is the tubular structure with inner chamber, described jointing is provided with through hole in (3), described connecting portion (13) is connected with jointing (3), and the through hole of the inner chamber of connecting portion (13) and jointing (3) communicates, form a transfer passage.
3. occluder for left auricle according to claim 2, is characterized in that: described transfer passage is provided with check valve at the opening part near interior card (11) one end.
4. occluder for left auricle according to claim 3, is characterized in that: described check valve is by the opening closing described transfer passage and can only membrane (131) that inwardly card (11) side is opened form.
5. occluder for left auricle according to claim 2, is characterized in that: described connecting portion (13) is the spring-backed quill that a length can be stretched.
6. occluder for left auricle according to claim 5, it is characterized in that: described spring-backed quill is by a spring (132), elastica (133) and end pipe (134) composition, described end pipe (134) is fixed on the center of interior card (11), one end of described spring (132) is managed (134) with end and is connected, the other end of spring (132) is connected with jointing (3), described elastica (133) is coated on spring (132) outside, the two ends of elastica (133) are managed (134) with end respectively, jointing (3) is connected, form a sleeve pipe.
7. occluder for left auricle according to claim 1, is characterized in that: described interior card (11) is for hemispherical, and its planar end surface side is card (12) toward the outside.
8. occluder for left auricle according to claim 1, it is characterized in that: outside the greatest circle side face of described interior card (11), be evenly provided with multiple anchor thorn (14), card (12) side toward the outside, tip of described anchor thorn (14).
9. occluder for left auricle according to claim 1, is characterized in that: the shape memory silk thread for weaving interior card (11) is thicker than the shape memory silk thread for weaving outer card (12).
10. occluder for left auricle according to claim 1, is characterized in that: described shape memory silk thread is nitinol alloy wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568248.3U CN204133530U (en) | 2014-09-29 | 2014-09-29 | Occluder for left auricle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420568248.3U CN204133530U (en) | 2014-09-29 | 2014-09-29 | Occluder for left auricle |
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| CN204133530U true CN204133530U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420568248.3U Active CN204133530U (en) | 2014-09-29 | 2014-09-29 | Occluder for left auricle |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104274224A (en) * | 2014-09-29 | 2015-01-14 | 上海形状记忆合金材料有限公司 | Left atrial appendage 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 |
| CN109069160A (en) * | 2016-03-17 | 2018-12-21 | S·珍耶那曼 | Block anatomical structure |
| 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
- 2014-09-29 CN CN201420568248.3U patent/CN204133530U/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105658148A (en) * | 2013-06-26 | 2016-06-08 | W.L.戈尔及同仁股份有限公司 | Occlusive device |
| WO2016049991A1 (en) * | 2014-09-29 | 2016-04-07 | 上海形状记忆合金材料有限公司 | Left atrial appendage occlusion apparatus |
| CN104274224A (en) * | 2014-09-29 | 2015-01-14 | 上海形状记忆合金材料有限公司 | Left atrial appendage occlusion device |
| CN109069160A (en) * | 2016-03-17 | 2018-12-21 | S·珍耶那曼 | Block anatomical structure |
| US11253261B2 (en) | 2016-03-17 | 2022-02-22 | Swaminathan Jayaraman | Occluding anatomical structures |
| 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 |
| 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 |
| 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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