CN114788712A - EY ventricular septal defect plugging device - Google Patents
EY ventricular septal defect plugging device Download PDFInfo
- Publication number
- CN114788712A CN114788712A CN202110106327.7A CN202110106327A CN114788712A CN 114788712 A CN114788712 A CN 114788712A CN 202110106327 A CN202110106327 A CN 202110106327A CN 114788712 A CN114788712 A CN 114788712A
- Authority
- CN
- China
- Prior art keywords
- occluder
- septal defect
- ventricular septal
- nickel
- steel sleeve
- 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.)
- Pending
Links
- 208000001910 Ventricular Heart Septal Defects Diseases 0.000 title claims abstract description 31
- 201000003130 ventricular septal defect Diseases 0.000 title claims abstract description 30
- 238000004873 anchoring Methods 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 15
- 210000005240 left ventricle Anatomy 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 230000002861 ventricular Effects 0.000 claims description 7
- 210000005241 right ventricle Anatomy 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims 2
- 238000003754 machining Methods 0.000 claims 1
- 210000004165 myocardium Anatomy 0.000 abstract description 4
- 239000012528 membrane Substances 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000002560 therapeutic procedure Methods 0.000 abstract description 2
- 239000007943 implant Substances 0.000 abstract 2
- 210000005242 cardiac chamber Anatomy 0.000 abstract 1
- 208000032170 Congenital Abnormalities Diseases 0.000 description 2
- 208000002330 Congenital Heart Defects Diseases 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000747 cardiac effect Effects 0.000 description 2
- 208000028831 congenital heart disease Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000003698 chordae tendineae Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000000596 ventricular septum Anatomy 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/0057—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect
- A61B2017/00575—Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect for closure at remote site, e.g. closing atrial septum defects
- A61B2017/00579—Barbed implements
Abstract
The invention relates to an EY ventricular septal defect occluder, which is used for anchoring the device by penetrating into cardiac muscle through a rivet structure; because the implant does not contain a disc-shaped structure, the implant does not protrude into a heart chamber completely after being implanted, and the influence on the function of a heart structure can be reduced; the shape of the occluder is specially designed for non-membrane ventricular septal defect occlusion treatment, and provides equipment guarantee for interventional therapy of the ventricular septal defect.
Description
Technical Field
The invention relates to an occluder of medical equipment, in particular to an EY ventricular septal defect occluder.
Background
Ventricular septal defect is the most common congenital heart disease deformity, can exist alone, and can also occur together with other deformities. The incidence of this disease is about 0.2% of the surviving neonates, and it accounts for more than 20% of congenital heart disease. Such defects may occur anywhere in the ventricular septum. Minimally invasive is the first option for treatment. The ventricular septal defect occluder is a medical instrument which is necessary for minimally invasive treatment of ventricular septal defects. At present, the occluder applied in clinic mostly comprises a disk-shaped structure which can protrude into the ventricular cavity to influence the function of the cardiac structure, so that the application range of the minimally invasive treatment of ventricular septal defect is limited, for example, ventricular septal defect near valve, chordae tendineae, conduction tract and outflow tract is limited, and an open operation scheme has to be selected because of the risk that the disk-shaped structure of the occluder influences the important cardiac structure.
Disclosure of Invention
In view of the above-mentioned disadvantages of the prior art, the technical problem to be solved by the present invention is to provide a ventricular septal defect occluder without a disk-shaped structure, which is anchored at the ventricular septal defect site by a rivet structure penetrating into the myocardium, so as to achieve the effect of occluding the ventricular septal defect.
The invention is realized in the following way: the EY ventricular septal defect occluder comprises an occluder main body, a steel sleeve and a rivet structure, wherein the occluder main body is of a nickel-titanium alloy wire woven mesh structure. The occluder is characterized in that the occluder main body is similar to a thin waist cylinder in outline and comprises a left ventricle surface, an anchoring surface and a right ventricle surface, wherein a steel sleeve used for binding the broken end of a nickel-titanium alloy wire is arranged in the center of the left ventricle surface, internal threads are arranged at the outer end of the steel sleeve, and the steel sleeve and a nut have similar functional structures and are used for being in spiral connection with a steel cable for pushing the occluder; the diameters of the left ventricle face and the right ventricle face are equal and larger than the diameter of the waist.
The main body and the rivets are integrally formed, and the main body and the rivets are characterized in that the broken ends of part of the nickel-titanium alloy wires are positioned on the anchoring surface, and the center points of the rest nickel-titanium alloy wires on the left ventricle surface are bundled by a steel sleeve.
The elastic metal wire is a nickel-titanium alloy metal wire. The steel sleeve is obtained by mechanically and precisely processing medical stainless steel 317L.
The rivet structure is formed by bending the broken end of the metal wire on the anchoring surface and is perpendicular to the anchoring surface.
The invention has the beneficial effects that: because the EY ventricular septal defect occluder does not have a disc-shaped structure and does not protrude out of the ventricular cavity, the EY ventricular septal defect occluder can reduce the influence on the structural function of the ventricles; the rivet structure penetrates into cardiac muscle, the radian of the anchoring surface is matched with the convex-concave ventricular septal defect, and the fitting property is good; the main body of the occluder is of a hollow structure, only bears partial pressure of the left ventricle in the early stage, and the risk of falling off is reduced; the shape of the occluder is specially designed for non-membrane ventricular septal defect occlusion treatment, and provides equipment guarantee for interventional therapy of the ventricular septal defect.
Drawings
Fig. 1 is a schematic structural diagram of an EY ventricular septal defect occluder in the present application.
Figure 2 is a schematic diagram of the EY ventricular septal defect occluder after release.
In the figure: the device comprises a main body 1, rivets 2, a steel sleeve 3, a right ventricular surface 4, a left ventricular surface 5, an anchoring surface 6, a waist portion 7 and a nickel-titanium alloy wire 8.
Detailed Description
As shown in the attached figure 1, the EY ventricular septal defect occluder is similar to a guide wheel in shape and is integrally formed by weaving a plurality of nickel-titanium alloy wires. The occluder comprises a left ventricular surface, a right ventricular surface, an anchoring surface, a steel sleeve and a rivet structure.
The main body and the rivet are integrally formed, the broken ends of part of the metal wires are bent into a rivet structure on the anchoring surface, and the rest of the metal wires are bundled and fixed by the steel sleeve on the left ventricle surface.
The nickel-titanium alloy wire is medical high-elasticity nickel-titanium alloy wire.
The rivet structure is perpendicular to the anchoring surface on which it is located.
The manufacturing method of the invention comprises the following steps: a plurality of high-elasticity nickel-titanium alloy wires are woven into a hollow sphere with a certain diameter and density by a weaving machine, and the sphere is shaped by a mould and heat treatment. The broken ends of the metal wires do not exist on the right ventricle surface, and the broken ends of part of the metal wires are uniformly distributed on the anchoring surface and are bent to be vertical to the anchoring surface, so that a rivet structure is formed. The broken ends of the other metal wires are bundled and fixed on the surface of the left ventricle by a steel sleeve in an extrusion mode.
The invention adopts the high elasticity and the memory property of the nickel-titanium alloy, the occluder is drawn into the sheath tube to be in a linear strip shape under the action of external force, the occluder is conveyed to the ventricular septal defect part by the percutaneous puncture technology, the occluder is completely opened after being released to recover the natural state, the anchoring surface is attached to the ventricular septal defect wall, and the rivet structure is penetrated into the cardiac muscle. The plugging device only bears partial pressure of the left ventricle in the early stage, so the plugging device is not easy to fall off, the plugging device is firmly fixed in the later stage, thrombus is formed in the main body, abnormal blood flow is blocked, the plugging purpose is realized, and the treatment effect is achieved. The blocking device is not suitable for the blocking treatment of the ventricular septal defect part of the membrane part.
Claims (7)
- The EY ventricular septal defect occluder comprises an occluder main body, a steel sleeve and a rivet structure, wherein the occluder main body is of a nickel-titanium alloy wire woven mesh structure.
- 2. The occluder is characterized in that the outline of the occluder main body is similar to a thin waist cylinder and consists of a left ventricle surface, an anchoring surface and a right ventricle surface; the center of the left ventricle surface is provided with a steel sleeve for binding the broken end of the nickel-titanium alloy wire, the outer end of the steel sleeve is provided with internal threads, and the internal threads and the nut have similar functional structures and are used for being in spiral connection with a steel cable of the push plugging device; the diameters of the left ventricle face and the right ventricle face are equal and larger than the diameter of the waist.
- 3. The EY ventricular septal defect occluder of claim 1, wherein: the body and the rivet are integrally formed, and the body and the rivet are woven by a plurality of nickel-titanium alloy wires.
- 4. The EY ventricular septal defect occluder of claim 2 or 3, wherein a portion of the nitinol wire ends are located on the anchoring surface, and the remaining portion of the nitinol wire ends are tied by a steel sleeve at the center point of the left ventricular surface.
- 5. The EY ventricular septal defect occluder of claim 1 or 3, wherein: the rivet structure is formed by bending the broken end of the metal wire on the anchoring surface and is vertical to the anchoring surface.
- 6. The EY ventricular septal defect occluder of claim 1 or 3, wherein: the elastic metal wire is a nickel-titanium alloy metal wire.
- 7. The steel sleeve is made of medical stainless steel 317L through mechanical precision machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110106327.7A CN114788712A (en) | 2021-01-26 | 2021-01-26 | EY ventricular septal defect plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110106327.7A CN114788712A (en) | 2021-01-26 | 2021-01-26 | EY ventricular septal defect plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114788712A true CN114788712A (en) | 2022-07-26 |
Family
ID=82460754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110106327.7A Pending CN114788712A (en) | 2021-01-26 | 2021-01-26 | EY ventricular septal defect plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114788712A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050113868A1 (en) * | 2003-11-20 | 2005-05-26 | Devellian Carol A. | Device, with electrospun fabric, for a percutaneous transluminal procedure, and methods thereof |
| US20070225760A1 (en) * | 2006-03-24 | 2007-09-27 | Occlutech Gmbh | Occlusion Device and Method for its Manufacture |
| US20110054519A1 (en) * | 2008-03-26 | 2011-03-03 | Malte Neuss | Device for closing defects in the vascular system |
| CN110313946A (en) * | 2018-03-28 | 2019-10-11 | 上海微创医疗器械（集团）有限公司 | A kind of plugging device and preparation method thereof |
| US20200138569A1 (en) * | 2017-07-06 | 2020-05-07 | Raghuveer Basude | Tissue grasping devices and related methods |
-
2021
- 2021-01-26 CN CN202110106327.7A patent/CN114788712A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050113868A1 (en) * | 2003-11-20 | 2005-05-26 | Devellian Carol A. | Device, with electrospun fabric, for a percutaneous transluminal procedure, and methods thereof |
| US20070225760A1 (en) * | 2006-03-24 | 2007-09-27 | Occlutech Gmbh | Occlusion Device and Method for its Manufacture |
| US20110054519A1 (en) * | 2008-03-26 | 2011-03-03 | Malte Neuss | Device for closing defects in the vascular system |
| US20200138569A1 (en) * | 2017-07-06 | 2020-05-07 | Raghuveer Basude | Tissue grasping devices and related methods |
| CN110313946A (en) * | 2018-03-28 | 2019-10-11 | 上海微创医疗器械（集团）有限公司 | A kind of plugging device and preparation method thereof |
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