CN207024078U - A kind of muscular ventricular septal defect plugging device - Google Patents
A kind of muscular ventricular septal defect plugging device Download PDFInfo
- Publication number
- CN207024078U CN207024078U CN201720005624.1U CN201720005624U CN207024078U CN 207024078 U CN207024078 U CN 207024078U CN 201720005624 U CN201720005624 U CN 201720005624U CN 207024078 U CN207024078 U CN 207024078U
- Authority
- CN
- China
- Prior art keywords
- card
- plugging device
- polyester film
- steel bushing
- ventricular septal
- 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
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Abstract
A kind of muscular ventricular septal defect plugging device is the utility model is related to, it is preferable with arterial wall stickiness because the stopper shapes use double disk-like structures, reduce the risk to come off；Plugging device design is in double disk structures and waist height is suitable with pars muscularis interval, reduces the compressing to interventricular septum, reduces the risk of block；The shape of the plugging device aims at the design of muscular ventricular septal defect Occlusion therapy, and material supporting is provided for PCI the type ventricular septal defect.
Description
Technical field
A kind of plugging device of medicine equipment is the utility model is related to, particularly a kind of muscular ventricular septal defect plugging device.
Background technology
Ventricular septal defect is most common Congenital Heart vitium, can individualism, also can merge hair with other deformities
It is raw.This sick incidence accounts for surviving neonatal 0.3%, the 30% of congenital cardiovascular diseases.The pathology class of ventricular septal defect
Type can be divided into film portion defect, pars infundibularis defect and pars muscularis defect three major types type according to embryonic development situation, wherein with film portion defect
Most commonly seen, pars muscularis defect is relatively fewer.The present more plugging device of clinical practice is membranous ventricular septal defect plugging device, due to
Film portion interval is relatively thin, and its plugging device is not suitable for the closure of pars muscularis room defect.
Utility model content
The purpose of this utility model is to provide a kind of muscular ventricular septal defect plugging device, because the plugging device is implanted into close to the heart
Trabecular muscles position near point, myocardial contraction room defect reduce, therefore plugging device deflection increases, and is stuck in using double disk structures
Defect is difficult for drop-off.
What the utility model was realized in：A kind of muscular ventricular septal defect plugging device, including plugging device main body and
One steel bushing, the second steel bushing and polyester film, the plugging device main body are nitinol alloy wire woven mesh structure, and its internal Sewing, which has, to be used for
Stop the polyester film of blood flow；The section of plugging device main body is I-shaped, is made up of left ventricle card, waist and right ventricle card,
The center of the left ventricle card and right ventricle card, which is respectively provided with, tightens up the nitinol alloy wire of each card in centre bit
The first steel bushing and the second steel bushing put, and the outer end of the second steel bushing is provided with internal thread, is carried out for the wirerope with pushing plugging device
Spiral connects；The diameter of the left ventricle card and right ventricle card is equal, and more than the diameter of waist.
The outer rim of the left ventricle card and right ventricle card is disposed as semicircular edge.
The nitinol alloy wire mesh grid is that the braiding of medical high resiliency nitinol alloy wire forms, the first steel bushing and the second steel bushing
By medical stainless steel 317L through obtained by mechanical Precision Machining, polyester film is medical non-woven polyester film, the suture of fixed polyester film
Line is medical polyester suture line.
Respectively 1 polyester film layer of sewing, waist sew 3 polyester film layers for the left ventricle card and right ventricle card.
The waist height is 7mm, and left ventricle card and right ventricle card diameter are bigger 4mm than waist cylinder diameter.
The beneficial effects of the utility model are：A kind of muscular ventricular septal defect plugging device, because the stopper shapes use
Double disk-like structures, it is preferable with arterial wall stickiness, reduce the risk to come off；Plugging device design is in double disk structures and waist
Height is suitable with pars muscularis interval, reduces the compressing to interventricular septum, reduces the risk of block；The shape of the plugging device aims at flesh
Ventricular septal defect Occlusion therapy in portion's is designed, and material supporting is provided for PCI the type ventricular septal defect.
Brief description of the drawings
Fig. 1 is muscular ventricular septal defect plugging device front view.
Fig. 2 is muscular ventricular septal defect plugging device side view.
Fig. 3 is the closure schematic diagram after the release of pars muscularis plugging device.
In figure, 1. first steel bushings, 2. left ventricle cards, 3. waists, 4. right ventricle cards, 5. second steel bushings, spiral shell in 6.
Line, 7. polyester films.
Embodiment
As shown in accompanying drawing 1-2, a kind of muscular ventricular septal defect plugging device, including plugging device main body and the first steel bushing 1,
Two steel bushings 5 and polyester film 7, the plugging device main body are nitinol alloy wire woven mesh structure, and its internal Sewing has for stopping blood
The polyester film 7 of stream；The section of plugging device main body is I-shaped, is made up of left ventricle card 2, waist 3 and right ventricle card 4, institute
The center for stating left ventricle card 2 and right ventricle card 4 is respectively provided with and tightens up the nitinol alloy wire of each card in centre bit
The first steel bushing 1 and the second steel bushing 5 put, and the outer end of the second steel bushing 5 is provided with internal thread 6, for the wirerope with pushing plugging device
Carry out spiral connection；The left ventricle card 2 is equal with the diameter of right ventricle card 4, and more than the diameter of waist 3.
The outer rim of the left ventricle card 2 and right ventricle card 4 is disposed as semicircular edge.
The nitinol alloy wire mesh grid is that the braiding of medical high resiliency nitinol alloy wire forms, the first steel bushing 1 and the second steel
Set 5, through obtained by mechanical Precision Machining, polyester film 7 is medical non-woven polyester film, fixes polyester film 7 by medical stainless steel 317L
Suture is medical polyester suture line.
The height of waist 3 is 7mm, and left ventricle card 2 and diameter ratio 3 cylinder diameters of waist of right ventricle card 4 are big
4mm。
Preparation method of the present utility model is：Certain diameter and close is developed by braider by high resiliency nitinol alloy wire
The mesh grid of degree, netted sizing is made by heat treatment, intercepts the mesh grid of certain length, one end is cased with 1 set of the first steel and passed through
The mode of extruding connection is fixed, and the other end is tightened up in the second steel bushing 5, is also connected using fashion of extrusion, is cased with the volume of steel bushing
Knitmesh is positioned in mould, is shaped by heat treatment, is removed from the molds after water cooling.Plugging device branch after sizing
Sewing multilayer polester film 7, is sewed in 1 layer of 1 layer of left ventricle card, 3 layers of waist and right ventricle card respectively in support body.
As shown in Figure 3, in use, the utility model is by the high resiliency and memory performance of Nitinol, in outer masterpiece
It is in a linear with lower reel the plugging device in sheath, Percutaneous Techniques, the pars muscularis that plugging device is transported to interventricular septum lacks
Position is damaged, plugging device is opened completely after release, and the diameter of waist 3 coincide with Defect diameter, and two cards are stuck on pars muscularis interval, installation
It is firm difficult for drop-off, while plugging device recovers nature, does not also interfere with block, the selection of its specification can pass through radiography
The diameter for measuring defect determines that the plugging device is applied to the Occlusion therapy at muscular ventricular septal defect position, inside plugging device
Several layers of choked flow film realize the purpose of closure, reach therapeutic effect to the barrier effect of abnormal blood flow.
Claims (3)
1. a kind of muscular ventricular septal defect plugging device, including plugging device main body and the first steel bushing, the second steel bushing and polyester film, institute
It is nitinol alloy wire woven mesh structure to state plugging device main body, and its internal Sewing has the polyester film for stopping blood flow；Its feature exists
In the section of plugging device main body is I-shaped, is made up of left ventricle card, waist and right ventricle card, the left ventricle card
With the center of right ventricle card be respectively provided with by the nitinol alloy wire of each card tighten up in center the first steel bushing and
Second steel bushing, and the outer end of the second steel bushing is provided with internal thread, is connected for the wirerope progress spiral with pushing plugging device；The left side
The diameter of ventricle card and right ventricle card is equal, and more than the diameter of waist；The left ventricle card and right ventricle card
Outer rim is disposed as semicircular edge；Respectively 1 polyester film layer of sewing, waist sew 3 layers for the left ventricle card and right ventricle card
Polyester film.
2. a kind of muscular ventricular septal defect plugging device according to claim 1, it is characterised in that the nitinol alloy wire is compiled
Knitmesh is that the braiding of medical high resiliency nitinol alloy wire forms, and the first steel bushing and the second steel bushing are by medical stainless steel 317L through machinery
Obtained by Precision Machining, polyester film is medical non-woven polyester film, and the suture of fixed polyester film is medical polyester suture line.
3. a kind of muscular ventricular septal defect plugging device according to claim 1, it is characterised in that the waist height is
7mm, left ventricle card and right ventricle card diameter are bigger 4mm than waist cylinder diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720005624.1U CN207024078U (en) | 2017-01-04 | 2017-01-04 | A kind of muscular ventricular septal defect plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720005624.1U CN207024078U (en) | 2017-01-04 | 2017-01-04 | A kind of muscular ventricular septal defect plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207024078U true CN207024078U (en) | 2018-02-23 |
Family
ID=61472221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720005624.1U Expired - Fee Related CN207024078U (en) | 2017-01-04 | 2017-01-04 | A kind of muscular ventricular septal defect plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207024078U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110236606A (en) * | 2019-06-13 | 2019-09-17 | 广州启骏生物科技有限公司 | Postinfarction ventricular septal defect plugging device |
| CN112603450A (en) * | 2020-12-29 | 2021-04-06 | 上海形状记忆合金材料有限公司 | Special sinus tumor plug suitable for aortic sinus tumor rupture |
-
2017
- 2017-01-04 CN CN201720005624.1U patent/CN207024078U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110236606A (en) * | 2019-06-13 | 2019-09-17 | 广州启骏生物科技有限公司 | Postinfarction ventricular septal defect plugging device |
| CN112603450A (en) * | 2020-12-29 | 2021-04-06 | 上海形状记忆合金材料有限公司 | Special sinus tumor plug suitable for aortic sinus tumor rupture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180223 Termination date: 20190104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |