CN205072942U - Cardioarterial (Patent ductus arteriosus plugging device - Google Patents
Cardioarterial (Patent ductus arteriosus plugging device Download PDFInfo
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- CN205072942U CN205072942U CN201520748125.2U CN201520748125U CN205072942U CN 205072942 U CN205072942 U CN 205072942U CN 201520748125 U CN201520748125 U CN 201520748125U CN 205072942 U CN205072942 U CN 205072942U
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- net
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- patent ductus
- stopper
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Abstract
The utility model discloses a cardioarterial (Patent ductus arteriosus plugging device, its first disc net, tubulose net and second disc including connecting gradually is netted, first disc net is double guard, second disc net is single -layer mesh enclosure, the both ends of tubulose net connect respectively in the interior wire side of first disc net with second disc net, first disc net tubulose net with second disc net is integrated into one piece, second disc net is equipped with the mounting that closes up the wire side, 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 arter patent ductus stopper.
Background technology
Patent ductus arteriosus is the one in common congenital heart disease, and refer to a kind of birth defect passage between aorta and pulmonary artery, multidigit is between aortic isthmus and left pulmonary artery root.Patent ductus arteriosus is mainly formed in the growth and development process of fetus, owing to have impact on the growth of heart by certain factor, thus defines patent ductus arteriosus.For the patient of patent ductus arteriosus, blood can flow to pulmonary artery by aorta through patent ductus arteriosus usually, and the blood entering pulmonary circulation returns left atrium and left ventricle again.Thus cause left atrium and left ventricular hypertrophy, expansion, finally cause left heart failure.If catheter diameter is comparatively thick, right ventricle plumpness, dynamic property pulmonary hypertension etc. also may be caused.
Heart arter patent ductus 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; (4) patent ductus arteriosus surgical operation is dangerous when being grown up and caliber is larger increases.
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 patent ductus arteriosus, 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 ventricle, through pulmonary artery, enter aorta through patent ductus arteriosus.Subsequently delivery conduit is placed in patent ductus arteriosus position along guide wire, finally heart arter patent ductus stopper is pushed in delivery conduit patent ductus arteriosus 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.
Authorization Notice No. CN2737328Y utility model patent discloses a kind of ductus arteriosus stopper, this stopper one end is double-deck containing guard, this guard installation connecting element carries out welded mesh tube hub closing in welding, and the mode of welding of closing up directly is welded with connector by titanium-nickel wire.Therefore, this stopper exist to connect between titanium-nickel wire insecure, hold caducous problem between titanium-nickel wire and connector.
Utility model content
The technical problems to be solved in the utility model be in order to overcome prior art exist to connect between titanium-nickel wire insecure, hold caducous defect between titanium-nickel wire and connector, a kind of heart arter patent ductus stopper is provided.
This utility model solves above-mentioned technical problem by following technical proposals:
A kind of heart arter patent ductus stopper, it comprises the one first plate-like net, a tubular reticulum and the one second plate-like net that connect successively, its feature is, described first plate-like net is double-deck guard, described second plate-like net is monolayer guard, the two ends of described tubular reticulum are connected to the interior wire side of described first plate-like net and described second plate-like net, and described first plate-like net, described tubular reticulum and described second plate-like net are formed in one; Described second plate-like net is provided with the fixture closed up by wire side, and for being welded to connect between 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.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.Wire side closing in place of the second plate-like net is made to have enough intensity like this.
Preferably, described second plate-like net caves in towards described fixture place.Depression wire side stopper can be made discharge from delivery sheath after there is good elastic recovery, thus stablize be plugged in patent ductus arteriosus place securely.
Preferably, the external diameter of described first plate-like net 5.5-6.5mm larger than the external diameter of described second plate-like net.First plate-like net is positioned at aorta side; second plate-like net is positioned at pulmonary artery side; for the patient of patent ductus arteriosus; blood can flow to pulmonary artery by aorta through patent ductus arteriosus usually; so this structure makes the first plate-like netting gear being positioned at aorta side have larger support force; the impact of blood flow can be resisted, to make stopper more firmly be clamped in patent ductus arteriosus place, realize effective shutoff.
Preferably, the length of described tubular reticulum is 4.5-6.5mm.This length can adapt with the length at patent ductus arteriosus place, makes stopper can firmly be clamped in patent ductus arteriosus place, effective Transcatheter Closure of Patent Ductus Arteriosus, also can not affect the flowing of pulmonary artery inner blood.
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 ductus arteriosus 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 arter patent ductus stopper, 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 is double-deck guard, second plate-like net 20 is monolayer guard, the two ends of tubular reticulum 30 are connected to the interior wire side 11 of the first plate-like net 10 and the second plate-like net 20, first plate-like net 10, tubular reticulum 30 and the second plate-like net 20 are formed in one; Second plate-like net 20 be provided with by wire side close up fixture 40, second plate-like net 20 and fixture 40 between for being welded to connect, 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, and the height of fixture 40 is 1.2-1.4mm, and the external diameter of fixture is 1.1-2.3mm.Second plate-like net 20 caves in towards fixture 40 place.The external diameter 5.5-6.5mm larger than the external diameter of the second plate-like net 20 of the first plate-like net 10, the length of tubular reticulum 30 is 4.5-6.5mm.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, also higher than direct stopper titanium-nickel wire and connector being carried out weld.
Wire side, at wire side closing in place employing twice welded structure, specifically, is closed up by fixture by this utility model stopper, and fixture and wire side are connected with welding, and makes 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 (8)
1. a heart arter patent ductus stopper, it comprises the one first plate-like net, a tubular reticulum and the one second plate-like net that connect successively, it is characterized in that, described first plate-like net is double-deck guard, described second plate-like net is monolayer guard, the two ends of described tubular reticulum are connected to the interior wire side of described first plate-like net and described second plate-like net, and described first plate-like net, described tubular reticulum and described second plate-like net are formed in one; Described second plate-like net is provided with the fixture closed up by wire side, and for being welded to connect between 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 arter patent ductus stopper 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 arter patent ductus stopper as claimed in claim 2, it is characterized in that, the external diameter of described fixture is 1.1-2.3mm.
4. heart arter patent ductus stopper as claimed in claim 1, it is characterized in that, described second plate-like net caves in towards described fixture place.
5. heart arter patent ductus stopper as claimed in claim 1, is characterized in that, the external diameter 5.5-6.5mm larger than the external diameter of described second plate-like net of described first plate-like net.
6. heart arter patent ductus stopper as claimed in claim 1, it is characterized in that, the length of described tubular reticulum is 4.5-6.5mm.
7. heart arter patent ductus stopper 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.
8. heart arter patent ductus stopper 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 |
|---|---|---|---|
| CN201520748125.2U CN205072942U (en) | 2015-09-24 | 2015-09-24 | Cardioarterial (Patent ductus arteriosus plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520748125.2U CN205072942U (en) | 2015-09-24 | 2015-09-24 | Cardioarterial (Patent ductus arteriosus plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205072942U true CN205072942U (en) | 2016-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520748125.2U Active CN205072942U (en) | 2015-09-24 | 2015-09-24 | Cardioarterial (Patent ductus arteriosus plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205072942U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108175467A (en) * | 2017-12-28 | 2018-06-19 | 山东省立医院 | A kind of patend ductus arteriosus occluder |
| CN112690855A (en) * | 2020-12-31 | 2021-04-23 | 先健科技(深圳)有限公司 | Plugging device and plugging device |
-
2015
- 2015-09-24 CN CN201520748125.2U patent/CN205072942U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108175467A (en) * | 2017-12-28 | 2018-06-19 | 山东省立医院 | A kind of patend ductus arteriosus occluder |
| CN112690855A (en) * | 2020-12-31 | 2021-04-23 | 先健科技(深圳)有限公司 | Plugging device and plugging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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. |
|
| CP03 | Change of name, title or address |