CN205072925U - Heart atrial septal defect plugging device - Google Patents
Heart atrial septal defect plugging device Download PDFInfo
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- CN205072925U CN205072925U CN201520748139.4U CN201520748139U CN205072925U CN 205072925 U CN205072925 U CN 205072925U CN 201520748139 U CN201520748139 U CN 201520748139U CN 205072925 U CN205072925 U CN 205072925U
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- septal defect
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Abstract
The utility model discloses a heart atrial septal defect plugging device, its first disc net, tubulose net and second disc including connecting gradually is netted, first disc net with second disc net is double guard, the both ends of tubulose net connect respectively in the interior wire side of first disc net with the outer wire side of second disc net, first disc net tubulose net with second disc net is integrated into one piece, a binding off end is drawn together to the outer net bread of first disc net, the end that closes up is a plurality of cyclic annular net twines that border on in proper order, first disc net still is equipped with a binding off line, all are worn to locate by the binding off line cyclic annular net twine, the warp after the binding off line closes up the outer net shape of face of first disc net becomes continuous mesh faces. The utility model discloses a plugging device adopts the structure of binding off line binding off, has increased the holding power and the resilience of plugging device to reduce the manufacturing degree of difficulty, reduced manufacturing cost.
Description
Technical field
This utility model relates to a kind of heart atrial septal defect plugging device.
Background technology
Atrial septal defect is the one in common congenital heart disease.Human heart is made up of four chambers, i.e. left atrium, left ventricle, right atrium and right ventricle, between left atrium wherein in top and right atrium two chambers, the interatrial septum that complete should be had, if having opening to be just referred to as atrial septal defect on heart interatrial septum.Atrial septal defect is mainly formed in the growth and development process of fetus, owing to have impact on the growth of heart by certain factor, thus forms atrial septal defect.For the patient of atrial septal defect, blood can flow to right atrium by left atrium through atrial septal defect usually, and the blood volume of right atrium is increased.The long-term existence of atrial septal defect can cause the diseases such as pulmonary artery pressure increases, congestive heart failure, arrhythmia, apoplexy, dizziness, faintness.
Heart atrial septal defect is common congenital heart disease, and traditional therapeutic modality is surgical operation.Operating Therapeutic Method, patient surgically need open breast, and its maximum shortcoming is: need extracorporeal circulation in (1) art, operation may cause complication and cause death; (2) surgery operating wound is large, postoperatively leaves cicatrix; (3) surgery cost is expensive.
From the eighties in 20th century along with the development of intubation intervention Treatment and diagnosis technology and raising, China progressively introduces Wicresoft's interventional technique treatment congenital heart disease, is developed rapidly by the method for Minimally Interventional Therapy atrial septal defect, now very ripe.Compare traditional surgery, Minimally Interventional Therapy is the treatment of a kind of modern high technology invasive, by femoral venous puncture, under the guiding of medical imaging device, by guide wire along femoral vein, postcava until enter right atrium, enter left atrium through atrial septal defect.Subsequently delivery conduit is placed in atrial septal defect position along guide wire, finally atrial septal defect plugging device is pushed in delivery conduit atrial septal defect place and implement Occlusion therapy.Such Minimally Interventional Therapy have do not operate on, wound is little, few intercurrent disease, recovery are fast, effective, indication scope is wide and surgery cost is relatively low etc. advantage.
Existing heart atrial septal defect plugging device is mostly dual welding spots, and namely all there is solder joint in the stopper face that is positioned at left atrium and the face that is positioned at right atrium.Such stopper tenor is high, can increase stopper surface local thrombus and be formed, be unfavorable for the endothelialization process on stopper surface during use.Patents document discloses the stopper of single solder joint, the utility model patent being 01274500.6 as the patent No. discloses a kind of New cardiac atrial septal defect blocking, the left atrium Ce Cheng center of this stopper support is to the flat disc (the first card) of lower recess, and right atrium side has hold-down nut to be transmission connection control portion.The accompanying drawing of this patent can be found out, this flat disc is the structure of being colluded with by the triangle of braiding, be woven into two flat bag-shaped cylindrical stents by certain route by a titanium-nickel wire and process further to form on mould, therefore, this stopper deposits the defect of recovery and poor compliance when weaving difficulty, use during fabrication.CN201320855502.3 then discloses a kind of nanometer film list riveting stopper, and this stopper is also single solder joint, but its smooth card is scattered, and recovery and support force are all poor.
Utility model content
The technical problems to be solved in the utility model there is smooth card (the first plate-like net) recovery and all poor defect of support force to overcome prior art, provides a kind of heart atrial septal defect plugging device.
This utility model solves above-mentioned technical problem by following technical proposals:
A kind of heart atrial septal defect plugging device, it comprises the one first plate-like net, a tubular reticulum and the one second plate-like net that connect successively, described first plate-like net and described second plate-like net are double-deck guard, the two ends of described tubular reticulum are connected to the interior wire side of described first plate-like net and the outer wire side of described second plate-like net, its feature is, described first plate-like net, described tubular reticulum and described second plate-like net are formed in one; The outer net face of described first plate-like net comprises a closing in end, the described end that closes up is for multiple ring-type netting twine adjacent successively, described first plate-like net is also provided with a closing in line, described closing in line is arranged in all described ring-type netting twines, and after described closing in line closes up, the outer wire side of described first plate-like net forms netted of continuous print.
Preferably, the described end that closes up is positioned at the center of the outer wire side of described first plate-like net.Like this, make outer wire side more smooth.
Preferably, the external diameter of described first plate-like net is greater than the external diameter of described second plate-like net.First plate-like net is positioned at heart left atrium, second plate-like net is positioned at heart right atrium, heart left atrial pressure is greater than right atrial pressure, blood is made to enter right atrium by left atrium through atrial septal defect, so this structure makes the first plate-like netting gear being positioned at left atrium have larger support force, the impact of blood flow can be resisted, be conducive to stopper and be firmly clamped in atrial septal defect place, realize effective shutoff.
Preferably, the external diameter of described first plate-like net 4 ~ 6mm larger than the external diameter of described second plate-like net.This structure makes the first plate-like netting gear being positioned at left atrium have larger support force, can resist the impact of blood flow, be conducive to stopper and be firmly clamped in atrial septal defect place, realize effective shutoff.
Preferably, the external diameter 10 ~ 16mm larger than the external diameter of described tubular reticulum of described first plate-like net.The diameter of tubular reticulum is general corresponding with the diameter of atrial septal defect, the external diameter of the first plate-like net needs larger than the external diameter of tubular reticulum, this structure makes the first plate-like netting gear being positioned at left atrium have larger support force, the impact of blood flow can be resisted, be conducive to stopper and be firmly clamped in atrial septal defect place, realize effective shutoff.
Preferably, the length of described tubular reticulum is 3.5 ~ 5.5mm.This length is corresponding with the thickness of atrial septal defect tissue, to make stopper be fixed on defect place preferably and not damaging tissue, and realizes effective shutoff.
Preferably, the material of described first plate-like net, described tubular reticulum and described second plate-like net is nitinol alloy wire.
Positive progressive effect of the present utility model is: the structure adopting closing in line to close up at wire side center due to this stopper, therefore, when manufacturing stopper, the NiTi silk screen that can intercept tubular is suppressed, and then shell nosing treatment is carried out to the outer wire side of the first plate-like net, form smooth netted, add support force and the recovery of stopper, and reduce manufacture difficulty, decrease manufacturing cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model preferred embodiment.
Fig. 2 is the A direction view in Fig. 1.
Fig. 3 is the closing in end place close-up schematic view of the outer wire side of the first plate-like net of this utility model preferred embodiment.
Detailed description of the invention
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly this utility model to be described.
As shown in Figure 1, Figure 2 and Figure 3, a kind of heart atrial septal defect plugging device, it comprises the first plate-like net 10, tubular reticulum 30 and the second plate-like net 20 that connect successively, first plate-like net 10 and the second plate-like net 20 are double-deck guard, the two ends of tubular reticulum 30 are connected to outer wire side 21, the first plate-like net 10 of the interior wire side 15 of the first plate-like net 10 and the second plate-like net 20, tubular reticulum 30 and the second plate-like net 20 and are formed in one; The outer wire side 11 of the first plate-like net 10 comprises closing in end 12, closing in end 12 is multiple ring-type netting twines 13 adjacent successively, first plate-like net 10 is also provided with closing in line 14, closing in line 14 is arranged in all ring-type netting twines 13, and after closing in line 14 closes up, the outer wire side 11 of the first plate-like net 10 forms netted of continuous print.Closing in end 12 is positioned at the center of the outer wire side 11 of the first plate-like net 10.
The external diameter of the first plate-like net 10 is greater than the external diameter of the second plate-like net 20, preferably, and the external diameter 4 ~ 6mm larger than the external diameter of the second plate-like net 20 of the first plate-like net 10.External diameter 10 ~ the 16mm larger than the external diameter of tubular reticulum 30 of the first plate-like net 10.The length of tubular reticulum 30 is 3.5 ~ 5.5mm.The material of the first plate-like net 10, tubular reticulum 30 and the second plate-like net 20 is nitinol alloy wire.
The interior wire side 22 of the second plate-like net 20 is provided with the fixture (not shown on figure) closed up by wire side, for being welded to connect between the interior wire side 22 of the second plate-like net 20 and fixture, the outer cover of fixture is provided with connector 40, connector 40 with between fixture for butt-joint is connected.By fixture, wire side is closed up, and fixture and wire side are connected with welding, make the titanium-nickel wire of composition plate-like net be not easy to scatter like this, can link together securely; And connector and fixture adopt butt-joint to be connected, connector can be linked together securely with the titanium-nickel wire of composition plate-like net, be not easy to come off.
First mesh-covered tray of stopper is netted of continuous print, closing in line is adopted to close up between its netting twine, the first outer net dish is made to be the wire side of flat smooth, without protruding, like this, the risk that stopper surface local thrombus is formed can be reduced, be conducive to accelerating the endothelialization process on stopper surface, make heart defect being repaired by autologous tissue more early.
Due to the structure that this stopper adopts closing in line to close up at wire side center, therefore, when manufacturing stopper, the NiTi silk screen that can intercept tubular is suppressed, and then shell nosing treatment is carried out to the outer wire side of the first plate-like net, form smooth netted, add support force and the recovery of stopper, and reduce manufacture difficulty, decrease manufacturing cost.
In description of the present utility model, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only this utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
Although the foregoing describe detailed description of the invention of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection domain of the present utility model is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present utility model and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection domain of the present utility model.
Claims (7)
1. a heart atrial septal defect plugging device, it comprises the one first plate-like net, a tubular reticulum and the one second plate-like net that connect successively, described first plate-like net and described second plate-like net are double-deck guard, the two ends of described tubular reticulum are connected to the interior wire side of described first plate-like net and the outer wire side of described second plate-like net, it is characterized in that, described first plate-like net, described tubular reticulum and described second plate-like net are formed in one; The outer net face of described first plate-like net comprises a closing in end, the described end that closes up is for multiple ring-type netting twine adjacent successively, described first plate-like net is also provided with a closing in line, described closing in line is arranged in all described ring-type netting twines, and after described closing in line closes up, the outer wire side of described first plate-like net forms netted of continuous print.
2. heart atrial septal defect plugging device as claimed in claim 1, is characterized in that, the described end that closes up is positioned at the center of the outer wire side of described first plate-like net.
3. heart atrial septal defect plugging device as claimed in claim 1, it is characterized in that, the external diameter of described first plate-like net is greater than the external diameter of described second plate-like net.
4. heart atrial septal defect plugging device as claimed in claim 3, is characterized in that, the external diameter 4 ~ 6mm larger than the external diameter of described second plate-like net of described first plate-like net.
5. heart atrial septal defect plugging device as claimed in claim 1, is characterized in that, the external diameter 10 ~ 16mm larger than the external diameter of described tubular reticulum of described first plate-like net.
6. heart atrial septal defect plugging device as claimed in claim 1, it is characterized in that, the length of described tubular reticulum is 3.5 ~ 5.5mm.
7. heart atrial septal defect plugging device as claimed in claim 1, it is characterized in that, the material of described first plate-like net, described tubular reticulum and described second plate-like net is nitinol alloy wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520748139.4U CN205072925U (en) | 2015-09-24 | 2015-09-24 | Heart atrial septal defect plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520748139.4U CN205072925U (en) | 2015-09-24 | 2015-09-24 | Heart atrial septal defect plugging device |
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| Publication Number | Publication Date |
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| CN205072925U true CN205072925U (en) | 2016-03-09 |
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| CN201520748139.4U Active CN205072925U (en) | 2015-09-24 | 2015-09-24 | Heart atrial septal defect plugging device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109925096A (en) * | 2019-04-29 | 2019-06-25 | 上海方维医疗科技有限公司 | For reducing the device of annulus of mitral valve opening area |
| CN112932562A (en) * | 2021-02-01 | 2021-06-11 | 上海锦葵医疗器械股份有限公司 | Heart atrial septal defect occluder with flat two end surfaces and manufacturing method thereof |
-
2015
- 2015-09-24 CN CN201520748139.4U patent/CN205072925U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109925096A (en) * | 2019-04-29 | 2019-06-25 | 上海方维医疗科技有限公司 | For reducing the device of annulus of mitral valve opening area |
| CN112932562A (en) * | 2021-02-01 | 2021-06-11 | 上海锦葵医疗器械股份有限公司 | Heart atrial septal defect occluder with flat two end surfaces and manufacturing method thereof |
| CN112932562B (en) * | 2021-02-01 | 2022-06-28 | 上海锦葵医疗器械股份有限公司 | Heart atrial septal defect occluder with flat two end surfaces and manufacturing method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: 15th Building, 388 Yindu Road, Xuhui District, Shanghai, 200231 Patentee after: Shanghai Jinkui Medical Devices Co., Ltd. Address before: Room 102, D Workshop, 1618 Yishan Road, Minhang District, Shanghai, 201103 Patentee before: Shanghai Jinkui Medical Implements Co., Ltd. |