CN204147142U - A kind of combination type occluder for left auricle - Google Patents
A kind of combination type occluder for left auricle Download PDFInfo
- Publication number
- CN204147142U CN204147142U CN201420530887.0U CN201420530887U CN204147142U CN 204147142 U CN204147142 U CN 204147142U CN 201420530887 U CN201420530887 U CN 201420530887U CN 204147142 U CN204147142 U CN 204147142U
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- steel bushing
- card
- left auricle
- connecting rod
- anchor
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Abstract
This utility model provides a kind of combination type occluder for left auricle, comprise card and anchor, the near-end of card has the first steel bushing, first steel bushing is for tightening up the nitinol alloy wire of card one end, the first steel bushing other end is provided with the 3rd female thread for being connected with push rod, the far-end of card is provided with the second steel bushing, this stopper also comprises connecting rod, second steel bushing one end is for tightening up the nitinol alloy wire of card, the other end is provided with the second female thread for being connected with the first screw of connecting rod, the other end of connecting rod is provided with the second screw, be connected with the first female thread of the 3rd steel bushing the connection realizing connecting rod and anchor by the second screw of connecting rod, anchor is worked out by nitinol alloy wire and the structure that assumes diamond in shape, diamond weave net is formed by eight diamonds, diamond weave net near-end tightens up in the 3rd steel bushing, each rhombus far-end is bending in barb-like by bifilar titanium-nickel wire.This utility model adopts combination type to achieve stopper can for different left auricle structure size " custom-made by size ".
Description
Technical field
This utility model relates to a kind of occluder for left auricle, specifically a kind of combination type occluder for left auricle.
Background technology
At present, 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 the near-end that left auricle is connected with left atrium, 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.Though the stopper of our company's prior art development can solve above-mentioned two problems, but due to the scrambling of left auricle, its opening part size, the length of upper limb diameter and distance opening part is uncertain numerical value, select fixed stopper to have certain limitation, fixed stopper can not be selected each component specification to carry out combining according to left auricle different shape and realize the effect of " custom-made by size ".
Utility model content
The purpose of this utility model is to provide a kind of combination type occluder for left auricle, solves because left auricle comes in every shape, and stopper can not be selected each component specification to carry out combining according to left auricle different shape and realize the problem of " custom-made by size ".
In order to achieve the above object, this utility model is achieved through the following technical solutions:
This utility model provides a kind of combination type occluder for left auricle, this stopper is made by high resiliency nitinol alloy wire and medical stainless steel material, comprise and weave in netted card and anchor by nitinol alloy wire, card inside is sewed with polyester film to stop blood flow, the near-end of card has the first steel bushing, first steel bushing is for tightening up the nitinol alloy wire of card one end, the first steel bushing other end is provided with the 3rd female thread for being connected with push rod, the far-end of card is provided with the second steel bushing, this stopper also comprises connecting rod, second steel bushing one end is for tightening up the nitinol alloy wire of card, the other end is provided with the second female thread for being connected with the first screw of connecting rod, the other end of connecting rod is provided with the second screw, be connected with the first female thread of the 3rd steel bushing the connection realizing connecting rod and anchor by the second screw of connecting rod, anchor is worked out by nitinol alloy wire and the mesh grid that assumes diamond in shape, diamond weave net is formed by eight diamonds, the extruding of diamond weave net near-end is tightened up in the 3rd steel bushing, each rhombus far-end is bending in barb-like by bifilar titanium-nickel wire, the dressing flesh groove of the deep enough left auricle inwall of barb energy, and be unlikely to puncture left auricle.
Further improvement of the utility model is: card entirety is in basin shape structure.
Further improvement of the utility model is: it is umbrella-shaped structure that anchor adopts eight rhombuses to be integrally connected integral forming through molding heat treatment, and the intermediate angle of eight rhombuses is connected by spot welding.
Further improvement of the utility model is: the Nitinol filament diameter weaving described anchor is greater than the Nitinol filament diameter weaving described card.
The beneficial effects of the utility model: this utility model provides a kind of combination type occluder for left auricle, design and develop according to left auricle anatomical structure, mesh grid card is basin shape structure as the design of shutoff card, periphery diameter is greater than projection diameter, bossing can be embedded in the open interior of left auricle when shutoff left auricle, be easy to the stability of stopper, not easily displacement, difficult drop-off; Because anchor adopts diamond structure, when takeing in conduit, not easily distortion is wound around, and course of conveying is smooth and easy, and after release, form trait is intact, and have good elasticity, connecting rod has enough elastic pulling forces to shutoff card, makes the shutoff of braiding card tight, fixed; Because the first steel bushing is depressed in card center, height is substantially concordant with card, is easy to cell telencephalization and regeneration, reduces thrombosed risk; This utility model by card, connecting rod and anchor three part form, the mode of combination is adopted to become occluder for left auricle, this utility model can make multiple combination product, mesh grid card can design plurality of specifications according to diameter, connecting rod can according to Design of length plurality of specifications, anchor can according to the size design plurality of specifications of plane projection diameter, the female thread of steel bushing and the screw of connecting rod are standard screw, can realize exchanging, this achieves the effect of " custom-made by size " for difform left atrial appendage occlusion, ensure that clinical safe and effective.
This utility model easily causes at solution stopper and comes off, while there is again thromboembolism risk, achieving stopper can for different left auricle structure size " custom-made by size ", the many specifications of diameter of the many specifications of card diameter, the many specifications of connecting rod length, anchor, can according to clinical radiography actual selection, independent assortment, general supporting.
Accompanying drawing explanation
Fig. 1: the front view of this utility model occluder for left auricle.
Fig. 2: this utility model mesh grid card top view.
Fig. 3: the top view of this utility model anchor.
Fig. 4: the barb enlarged drawing 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-card, 3-polyester film, 4-second steel bushing, 5-connecting rod, 6-barb, 7-diamond weave net, 8-the 3rd steel bushing, 9-first female thread, 10-second screw, 11-first screw, 12-second female thread, 13-the 3rd female thread, 14-push rod, 15-sheath pipe, 16-anchor.
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 combination type occluder for left auricle, this stopper is made by high resiliency nitinol alloy wire and medical stainless steel material, comprise and weave in netted card 2 and anchor 16 by nitinol alloy wire, described card 2 inside is sewed with polyester film 3 to stop blood flow, the near-end of described card 2 has the first steel bushing 1, described first steel bushing 1 is for tightening up the nitinol alloy wire of described card 2 one end, first steel bushing 1 other end is provided with the 3rd female thread 13 for being connected with push rod 14, the far-end of described card 2 is provided with the second steel bushing 4, this stopper also comprises connecting rod 5, described second steel bushing 4 one end is for tightening up the nitinol alloy wire of described card 2, the other end is provided with the second female thread 12 for being connected with the first screw 11 of connecting rod 5, the other end of described connecting rod 5 is provided with the second screw 10, be connected with the first female thread 9 of the 3rd steel bushing 8 connection realizing connecting rod 5 and anchor 16 by the second screw 10 of described connecting rod 5, described anchor 16 is worked out by nitinol alloy wire and the mesh grid 7 that assumes diamond in shape, described diamond weave net 7 is formed by eight diamonds, described diamond weave net 7 near-end extruding is tightened up in the 3rd steel bushing 8, each rhombus far-end is bending in barb 6 shape by bifilar titanium-nickel wire, the dressing flesh groove of the deep enough left auricle inwall of described barb 6 energy, and be unlikely to puncture left auricle, described card 2 entirety is in basin shape structure, it is umbrella-shaped structure that described anchor 16 adopts eight rhombuses to be integrally connected integral forming through molding heat treatment, the intermediate angle of eight rhombuses is connected by spot welding, the Nitinol filament diameter weaving described anchor 16 is greater than the Nitinol filament diameter weaving described card 2.
Mesh grid card by hand-knitted mode by the establishment of high resiliency memory nitinol silk in a tubular form, rear and steel bushing squeeze flow are tightened up in two ends, be basin shape structure by thermal finalization, several polyester film layer sheet is made to stop blood flow in card inside, polyester film is medical grade nonwoven polyester film, and the stitching thread of fixing polyester film is medical polyester suture line; Connecting rod is made through mechanical Precision Machining by medical stainless steel rod 316L, and two ends mantle fiber and steel bushing nut support the use, and steel bushing is also made through mechanical Precision Machining by medical stainless steel rod 316L; Anchor is through working out the structure that assumes diamond in shape by high resiliency memory nitinol silk, each rhombus far-end is bending in barb by bifilar titanium-nickel wire, the intermediate angle of eight rhombuses is connected by spot welding, and the extruding of rhombus near-end is tightened up in the 3rd steel bushing, and whole anchor is umbrella through molding heat treatment.
Operation principle: this utility model is the memory function utilizing high resiliency nitinol alloy wire, by external force, stopper is drawn in sheath pipe 15 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 left atrial appendage, anchor after opening is in " umbrella " structure, the barb of eight rhombus far-ends stretches in left auricle flesh wall groove, continue recession delivery conduit mesh grid card discharge at left auricle opening part and open, the braiding pulling force that card one inwardly applies is given by connecting rod, make its effectively blocking left auricle opening, because braiding card is basin shape structure, its projection sinks into left auricle open interior, this structure card is easy to fixing, not easily be shifted, shutoff is tight, thus meet clinical demand.In addition, this utility model is by card, connecting rod and anchor three part composition, and adopt the mode of combination to become occluder for left auricle, due to the scrambling of left auricle, its opening part size, the length of upper limb diameter and distance opening part is uncertain numerical value, its concrete size is determined by radiography measuring technique in clinical percutaneous transcatheter closure, this utility model can make multiple combination product, mesh grid card can design plurality of specifications according to diameter, connecting rod can according to Design of length plurality of specifications, anchor can according to the size design plurality of specifications of plane projection diameter, the female thread of steel bushing and the screw of connecting rod are standard screw, can realize exchanging, this is the effect that difform left atrial appendage occlusion achieves " custom-made by size ", ensure that clinical safe and effective.
This utility model adopts the mode of combination type apparatus, easily cause at solution stopper and come off, while there is again thromboembolism risk, achieving stopper can for different left auricle structure size " custom-made by size ", and the diameter of shutoff card diameter, connecting rod length and anchor all can arrange different size, selects each component specification to combine, according to the architectural feature of clinical radiography determination left auricle, calculate the stopper using comparatively definite size, independent assortment, general supporting.
Claims (4)
1. a combination type occluder for left auricle, this stopper is made by high resiliency nitinol alloy wire and medical stainless steel material, comprise and weave in netted card (2) and anchor (16) by nitinol alloy wire, described card (2) inside is sewed with polyester film (3) to stop blood flow, the near-end of described card (2) has the first steel bushing (1), described first steel bushing (1) is for tightening up the nitinol alloy wire of described card (2) one end, first steel bushing (1) other end is provided with the 3rd female thread (13) for being connected with push rod (14), the far-end of described card (2) is provided with the second steel bushing (4), it is characterized in that: this stopper also comprises connecting rod (5), described second steel bushing (4) one end is used for the nitinol alloy wire tightening up described card (2), the other end is provided with the second female thread (12) for being connected with first screw (11) of connecting rod (5), the other end of described connecting rod (5) is provided with the second screw (10), be connected with first female thread (9) of the 3rd steel bushing (8) connection realizing connecting rod (5) and anchor (16) by second screw (10) of described connecting rod (5), described anchor (16) is worked out by nitinol alloy wire and the mesh grid that assumes diamond in shape (7), described diamond weave net (7) is formed by eight diamonds, described diamond weave net (7) near-end extruding is tightened up in the 3rd steel bushing (8), each rhombus far-end is bending in barb (6) shape by bifilar titanium-nickel wire, the dressing flesh groove of the deep enough left auricle inwall of described barb (6) energy, and be unlikely to puncture left auricle.
2. a kind of combination type occluder for left auricle according to claim 1, is characterized in that: described card (2) entirety is in basin shape structure.
3. a kind of combination type occluder for left auricle according to claim 1, is characterized in that: it is umbrella-shaped structure that described anchor (16) adopts eight rhombuses to be integrally connected integral forming through molding heat treatment, and the intermediate angle of eight rhombuses is connected by spot welding.
4. a kind of combination type occluder for left auricle according to claim 1, is characterized in that: the Nitinol filament diameter weaving described anchor (16) is greater than the Nitinol filament diameter of the described card of braiding (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530887.0U CN204147142U (en) | 2014-09-16 | 2014-09-16 | A kind of combination type occluder for left auricle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420530887.0U CN204147142U (en) | 2014-09-16 | 2014-09-16 | A kind of combination type occluder for left auricle |
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| Publication Number | Publication Date |
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| CN204147142U true CN204147142U (en) | 2015-02-11 |
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| CN201420530887.0U Expired - Fee Related CN204147142U (en) | 2014-09-16 | 2014-09-16 | A kind of combination type occluder for left auricle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105476683A (en) * | 2014-09-16 | 2016-04-13 | 徐州亚太科技有限公司 | Combined left aurcle occluding device |
| CN105816216A (en) * | 2016-03-14 | 2016-08-03 | 北京迈迪顶峰医疗科技有限公司 | Atrial appendage amplatzer |
| CN105832375A (en) * | 2016-03-14 | 2016-08-10 | 北京迈迪顶峰医疗科技有限公司 | Atrial appendage closure device |
| WO2017157316A1 (en) * | 2016-03-18 | 2017-09-21 | 上海微创医疗器械（集团）有限公司 | Left auricle occluder and delivery system thereof |
| CN107233115A (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 |
| CN113558834A (en) * | 2021-08-09 | 2021-10-29 | 广东脉搏医疗科技有限公司 | Connecting assembly for cardiovascular implants |
-
2014
- 2014-09-16 CN CN201420530887.0U patent/CN204147142U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105476683A (en) * | 2014-09-16 | 2016-04-13 | 徐州亚太科技有限公司 | Combined left aurcle occluding device |
| JP2019509114A (en) * | 2016-03-14 | 2019-04-04 | 北京邁迪頂峰医療科技有限公司Ｂｅｉｊｉｎｇ Ｍｅｄ Ｚｅｎｉｔｈ Ｍｅｄｉｃａｌ Ｓｃｉｅｎｔｉｆｉｃ Ｃｏ．， Ｌｔｄ． | Atrial appendage closure device that is semi-deployed by pushing the optical cable at the end of the head |
| RU2700673C1 (en) * | 2016-03-14 | 2019-09-18 | Бэйцзинь Мед Зенит Медикал Сайентифик Ко., Лтд | Atrial appendage occluder configured to occupy a half-opened position by pushing the distal cable |
| WO2017157070A1 (en) * | 2016-03-14 | 2017-09-21 | 北京迈迪顶峰医疗科技有限公司 | Atrial appendage occluder |
| WO2017157071A1 (en) * | 2016-03-14 | 2017-09-21 | 北京迈迪顶峰医疗科技有限公司 | Atrial appendage occluder capable of entering half-released state by means of pushing head-end optical fiber |
| CN105832375A (en) * | 2016-03-14 | 2016-08-10 | 北京迈迪顶峰医疗科技有限公司 | Atrial appendage closure device |
| CN105816216A (en) * | 2016-03-14 | 2016-08-03 | 北京迈迪顶峰医疗科技有限公司 | Atrial appendage amplatzer |
| CN105832375B (en) * | 2016-03-14 | 2018-01-16 | 北京迈迪顶峰医疗科技有限公司 | A kind of atrial appendage occlusion device |
| CN105816216B (en) * | 2016-03-14 | 2018-02-13 | 北京迈迪顶峰医疗科技有限公司 | A kind of atrial appendage occlusion device |
| EP3431022A4 (en) * | 2016-03-18 | 2019-08-21 | Shanghai MicroPort Medical (Group) Co., Ltd. | Left auricle occluder and delivery system thereof |
| WO2017157316A1 (en) * | 2016-03-18 | 2017-09-21 | 上海微创医疗器械（集团）有限公司 | Left auricle occluder and delivery system thereof |
| US11039822B2 (en) | 2016-03-18 | 2021-06-22 | Shanghai Microport Medical (Group) Co., Ltd. | Left atrial appendage closure and delivery system thereof |
| CN107233115A (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 |
| CN113558834A (en) * | 2021-08-09 | 2021-10-29 | 广东脉搏医疗科技有限公司 | Connecting assembly for cardiovascular implants |
| CN113558834B (en) * | 2021-08-09 | 2024-04-26 | 广东脉搏医疗科技有限公司 | Connection assembly for cardiovascular implant |
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Legal Events
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| 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 |
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| CF01 | Termination of patent right due to non-payment of annual fee |