CN204951020U - Heart atrial septal defect plugging device - Google Patents
Heart atrial septal defect plugging device Download PDFInfo
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- CN204951020U CN204951020U CN201520748084.7U CN201520748084U CN204951020U CN 204951020 U CN204951020 U CN 204951020U CN 201520748084 U CN201520748084 U CN 201520748084U CN 204951020 U CN204951020 U CN 204951020U
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- septal defect
- atrial septal
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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 -deck screen panel, 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, the interior wire side of second disc net is equipped with the mounting that closes up the wire side, the interior wire side of second disc net with be welded connection between the mounting, the outside cover of mounting is equipped with a connecting piece, the connecting piece with connect for the butt -joint between the mounting. The utility model discloses a plugging device not only can make and can firmly link together between the nickel titanium silk of forming the disc net, can make the connecting piece and the nickel titanium silk of component disc net firmly link together in addition, is difficult to come off.
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.
The patent No. be 01274500.6 utility model patent disclose a kind of New cardiac atrial septal defect blocking, the transmission connection control portion application medical stainless steel screw of this stopper is fixing to be controlled, answer no-welding-spot between screw and titanium-nickel wire, but adopt blending technique to make.Proposing in this patent specification, adopting the pulling force after blending technique to be greatly better than the existing support by being welded at present, and difficult drop-off; Control end adopts solder technology, when by maximum pulling-out force 60 Newtonian time, extends 2.6 millimeters; And after adopting blending technique, when maximum pulling-out force is 200 Newtonian times, extend 1.2 millimeters; Therefore, the pulling-out force of this utility model no-welding-spot is apparently higher than the stopper adopting welding.
" the existing welding " mentioned in above-mentioned patent specification refers to and is directly welded with screw by titanium-nickel wire, and this kind of welding exists really holds caducous problem.But above-mentioned patent adopts blending technique, and its kneading portion still exists titanium-nickel wire and easily scatters, and screw and titanium-nickel wire hold caducous problem.
Utility model content
The technical problems to be solved in the utility model there is titanium-nickel wire and screw there is titanium-nickel wire and easily scatter to mediate to be connected to overcome prior art, and screw and titanium-nickel wire hold caducous defect, provide 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 interior wire side of described second plate-like net is provided with the fixture closed up by wire side, for being welded to connect between the interior wire side of described second plate-like net and described fixture, the outer cover of described fixture is provided with a connection piece, for butt-joint is connected between described connector with described fixture.
Preferably, described fixture is tubulose, and the height of described fixture is 1.2-1.4mm.Interior wire side closing in place of the second plate-like net is made to have enough intensity like this.
Preferably, the external diameter of described fixture is 1.1-2.3mm.Interior wire side closing in place of the second plate-like net is made to have enough intensity like this.
Preferably, the Intranet of described first plate-like net faces described tubular reticulum place depression, and the Intranet of described second plate-like net faces described fixture place depression.Can stablize when the wire side of depression can make stopper use and be plugged in heart atrial septal defect place securely.
Preferably, the external diameter of described first plate-like net 4 ~ 6mm larger 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 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.
Preferably, described connector is tubulose, and described connector is provided with female thread in the end relative with described fixture.By connector, easily stopper can be transported to heart atrial septal defect place by induction system.
Positive progressive effect of the present utility model is: this utility model stopper is at wire side closing in place employing twice welded structure, specifically, 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.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model preferred embodiment.
Fig. 2 is the structural representation of the fixture of this utility model preferred embodiment.
Fig. 3 be this utility model preferred embodiment fixture on structural representation after sheathed connector.
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 22, the first plate-like net 10 of the interior wire side 11 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 interior wire side 21 of the second plate-like net 20 is provided with for being welded to connect between the interior wire side 21 of fixture 40, the second plate-like net 20 closed up by wire side and fixture 40, and the outer cover of fixture 40 is provided with connector 50, for butt-joint is connected between connector 50 with fixture 40.
Fixture 40 is tubulose, is highly 1.2-1.4mm, and external diameter is 1.1-2.3mm.The interior wire side 11 of the first plate-like net 10 is towards tubular reticulum 30 place depression, and the interior wire side 21 of the second plate-like net 20 caves in towards fixture 40 place.External diameter 4 ~ the 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.Connector 50 is tubulose, and connector 50 is provided with female thread in the end relative with fixture 40.
Stopper of the present utility model, it is 270 Newtonian times that connector applies maximum pulling-out force, extends 0.6 millimeter, visible, the pulling-out force of stopper of the present utility model apparently higher than the stopper of existing employing blending technique, and higher than direct stopper titanium-nickel wire and connector being carried out weld.
Wire side closing in place employing twice welded structure of stopper of the present utility model, specifically, 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.
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 (9)
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 interior wire side of described second plate-like net is provided with the fixture closed up by wire side, for being welded to connect between the interior wire side of described second plate-like net and described fixture, the outer cover of described fixture is provided with a connection piece, for butt-joint is connected between described connector with described fixture.
2. heart atrial septal defect plugging device as claimed in claim 1, it is characterized in that, described fixture is tubulose, and the height of described fixture is 1.2-1.4mm.
3. heart atrial septal defect plugging device as claimed in claim 2, it is characterized in that, the external diameter of described fixture is 1.1-2.3mm.
4. heart atrial septal defect plugging device as claimed in claim 1, is characterized in that, the Intranet of described first plate-like net faces described tubular reticulum place depression, and the Intranet of described second plate-like net faces described fixture place depression.
5. heart atrial septal defect plugging device as claimed in claim 1, 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.
6. 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.
7. 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.
8. 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.
9. heart atrial septal defect plugging device as claimed in claim 1, it is characterized in that, described connector is tubulose, and described connector is provided with female thread in the end relative with described fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520748084.7U CN204951020U (en) | 2015-09-24 | 2015-09-24 | Heart atrial septal defect plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520748084.7U CN204951020U (en) | 2015-09-24 | 2015-09-24 | Heart atrial septal defect plugging device |
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| Publication Number | Publication Date |
|---|---|
| CN204951020U true CN204951020U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520748084.7U Active CN204951020U (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 |
|---|---|---|---|---|
| CN105476686A (en) * | 2016-01-27 | 2016-04-13 | 尚小珂 | Temporary closure device for heart defects |
| CN109077756A (en) * | 2018-09-07 | 2018-12-25 | 赵天力 | Heart atrial septal defect plugging device |
-
2015
- 2015-09-24 CN CN201520748084.7U patent/CN204951020U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105476686A (en) * | 2016-01-27 | 2016-04-13 | 尚小珂 | Temporary closure device for heart defects |
| CN109077756A (en) * | 2018-09-07 | 2018-12-25 | 赵天力 | Heart atrial septal defect plugging device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
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. |