CN109106485B - Trans-valvular anchoring device for aortic valve retention - Google Patents
Trans-valvular anchoring device for aortic valve retention Download PDFInfo
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- CN109106485B CN109106485B CN201811008709.0A CN201811008709A CN109106485B CN 109106485 B CN109106485 B CN 109106485B CN 201811008709 A CN201811008709 A CN 201811008709A CN 109106485 B CN109106485 B CN 109106485B
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- valve
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- 210000001765 aortic valve Anatomy 0.000 title claims abstract description 26
- 238000004873 anchoring Methods 0.000 title claims abstract description 21
- 230000014759 maintenance of location Effects 0.000 title description 2
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 19
- 230000002861 ventricular Effects 0.000 claims description 11
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 3
- 210000000709 aorta Anatomy 0.000 description 7
- 230000017531 blood circulation Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002792 vascular Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 206010020772 Hypertension Diseases 0.000 description 1
- 206010067171 Regurgitation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 210000004351 coronary vessel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/848—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0008—Fixation appliances for connecting prostheses to the body
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention discloses a trans-valve anchoring device for retaining aortic valve, which comprises a first fixing piece, a connecting piece and a second fixing piece, wherein the first fixing piece is used for fixing an aortic blood vessel support and has elasticity, the second fixing piece is placed in an outflow tract and has elasticity, the first fixing piece is connected with the top of the connecting piece, the bottom of the connecting piece is connected with the second fixing piece, the second fixing piece is positioned below an active valve, the connecting piece penetrates through a gap between the active valves, and the first fixing piece is positioned above the active valve.
Description
Technical Field
The present invention relates to aortic stent fixation devices, and more particularly to a trans-valvular anchoring device for retaining the aortic valve.
Background
Under the condition that the existing aortic blood vessel stent is used for blood vessel leak repairing, when the aortic blood vessel stent is used at a blood vessel position above an active valve, the aortic blood vessel stent is easily fixed in a long-term use process due to high blood pressure ejected by a heart, and the ascending aorta is aged, expanded and lengthened, so that the intermittent slippage phenomenon of the aortic blood vessel stent is easily caused, and the ascending aorta is torn.
Disclosure of Invention
In view of the above-mentioned problems, the present invention provides a trans-valvular anchoring device for retaining an aortic valve, which has a simple structure and is convenient to use, and can effectively fix an aortic stent and prevent the aortic stent from slipping for a long distance.
The invention provides a trans-valve anchoring device for retaining an aortic valve, which comprises a first fixing piece, a connecting piece and a second fixing piece, wherein the first fixing piece is used for fixing an aortic blood vessel stent and has elasticity, the second fixing piece is placed in a left ventricular outflow tract and has elasticity, the first fixing piece is connected with the top of the connecting piece, the bottom of the connecting piece is connected with the second fixing piece, the second fixing piece is positioned below the active valve and is tightly clamped with the left ventricular outflow tract, the connecting piece penetrates through the active valve, the connecting piece is used for pulling the first fixing piece, and the first fixing piece is positioned at the far end of the active valve.
Furthermore, the first fixing piece and the second fixing piece are both in a wave-shaped circular ring shape.
Furthermore, the undulation directions of the first fixing piece and the second fixing piece are parallel to each other between the connecting pieces.
Further, the inner diameter of the first fixing part is larger than that of the second fixing part.
Furthermore, the first fixing piece, the connecting piece and the second fixing piece are of an integrated structure.
Furthermore, a plurality of third fixing pieces are arranged at the top of the first fixing piece, and a plurality of fourth fixing pieces are arranged at the bottom of the second fixing piece.
Furthermore, the shape of the third fixing piece is the same as that of the first fixing piece, and the third fixing piece and the first fixing piece are formed by mirroring the plane perpendicular to the connecting piece.
Furthermore, the shape of a fourth fixing piece is the same as that of the second fixing piece, and the fourth fixing piece and the second fixing piece are formed by mirroring the plane perpendicular to the connecting piece.
Furthermore, the first fixing piece, the connecting piece, the second fixing piece, the third fixing piece and the fourth fixing piece are all made of memory alloy.
Further, the connecting piece is one or more connecting rods uniformly distributed between the first fixing piece and the second fixing piece, and the connecting rods can incline towards the inner side or the outer side of the first fixing piece and the second fixing piece.
The invention has the beneficial effects that:
according to the aortic valve-spanning anchoring device for retaining the aortic valve, the first fixing piece can be clamped with the aortic blood vessel support, when the aortic blood vessel support retreats towards the far end, the first fixing piece and the aortic blood vessel support can be clamped and tightened, so that the separation phenomenon between the aortic blood vessel support and the first fixing frame can be effectively prevented, through the connection effect of the connecting piece, when the heart ejects blood flow, the aortic blood vessel support can generate a movement trend in the same direction as the blood flow direction, and the first fixing piece also can generate a movement trend in the same direction as the blood flow direction In the process of applying non-vertical upward force, the second fixing part does not move, and even if the first fixing part slides to a small extent, the first fixing part can be rapidly reset due to the elasticity of the first fixing part, so that the aortic blood vessel support is pulled back to the original position, and the long-distance sliding phenomenon of the aortic blood vessel support is effectively avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic view of the overall structure of a first embodiment of a trans-valve anchoring device for retaining an aortic valve according to the present invention;
FIG. 2 is a general block diagram of a first embodiment of a trans-valve anchoring device of the present invention retaining an aortic valve;
fig. 3 is an overall structural view of a second embodiment of the trans-valve anchoring device of the present invention retaining the aortic valve.
In the figure, 1 is a first fixing member, 2 is a connecting member, 3 is a second fixing member, 4 is a third fixing member, and 5 is a fourth fixing member.
Detailed Description
In order to better understand the technical content of the invention, specific embodiments are provided below, and the invention is further described with reference to the accompanying drawings.
Example one
Referring to fig. 1 to 2, the present invention provides a trans-valvular anchoring device for retaining aortic valve, comprising a first fixing member 1 with elasticity for fixing aortic vessel stent, a connecting member 2 with elasticity and a second fixing member 3 with elasticity for placing in the left ventricular outflow tract, wherein the first fixing member 1 is connected with the top of the connecting member 2, the bottom of the connecting member 2 is connected with the second fixing member 3, the second fixing member 3 is located under the aortic valve and clamped with the left ventricular outflow tract, the connecting member 2 passes through the aortic valve, the connecting member 2 is used for pulling the first fixing member 1, the first fixing member 1 is located at the distal end of the aortic valve, the first fixing member 1 can be clamped with the aortic vessel stent, when the aortic vessel stent is retracted towards the distal end, the first fixing member 1 can be clamped with the aortic vessel stent more tightly, therefore, the separation phenomenon between the aortic blood vessel stent and the first fixing frame is effectively prevented, when the heart sprays blood flow, the aortic blood vessel stent has a movement trend in the same direction with the blood flow direction, and the first fixing piece 1 also has a movement trend in the same direction with the blood flow direction, because the second fixing piece 3 can be clamped with the left ventricular outflow tract to keep a fixed state, and the second fixing piece 3 is not directly connected with the first fixing piece 1 at the position except the position of the connecting piece 2, the second fixing piece 3 can not move in the process of applying non-vertical upward force on other positions of the first fixing piece 1 except the position where the connecting piece 2 is connected with the first fixing piece 1 and the second fixing piece 3, and even if the first fixing piece 1 slides in a small range, the aortic stent is also rapidly restored due to the elasticity of the first fixing member 1, so that the aortic stent is pulled back to the original position, the long-distance slippage phenomenon of the aortic stent is effectively avoided, and in addition, the device does not influence the patient to perform intervention or operation aortic valve replacement operation.
First mounting 1 with second mounting 3 all is the wave ring form, through the wave ring form, can make the structure between first mounting 1 and the aorta vascular support more close to agree with inseparabler, improved the firm in connection degree of first mounting 1 with aorta vascular support greatly, because the structure of initiative valve is similar to the hemisphere that the middle part was drawn empty, consequently the wave shape of second mounting 3 can be inseparabler with the joint of initiative valve, the joint effect is better.
The undulation directions of the first fixing part 1 and the second fixing part 3 are parallel to the connecting part 2, and the undulation direction of the first fixing part 1 is parallel to the connecting part 2, so that the first fixing part 1 is in closer contact with the aortic stent, and the aortic stent can be clamped conveniently.
The inner diameter of the first fixing part 1 is larger than that of the second fixing part 3, so that the second fixing part 3 can be better placed in the left ventricular outflow tract, and the diameter inconsistency of the aorta and the left ventricular outflow tract can be better adapted.
First mounting 1, a connecting piece 2 and second mounting 3 are the integral structure, can effectively strengthen the intensity of this device through the integral structure to the conjugation degree between first mounting 1, connecting piece 2 and the second mounting 3 is better, and the result of use is good.
Example two
Referring to fig. 3, the difference between the present embodiment and the first embodiment is that a plurality of third fixing members 4 are disposed on the top of the first fixing member 1, and a plurality of fourth fixing members 5 are disposed on the bottom of the second fixing member 3, so that the contact area between the first fixing member 1 and the aortic stent can be effectively increased by the third fixing members 4, the anti-drop effect is better, and the contact area between the second fixing member 3 and the left ventricular outflow tract can be increased by the fourth fixing members 5, so that the stability is better.
The shape of the third fixing part 4 is the same as that of the first fixing part 1, the third fixing part 4 and the first fixing part 1 are formed by mirror images of planes perpendicular to the connecting part 2, the third fixing part 4 and the first fixing part 1 can be matched with each other to be clamped with the aortic vascular stent through the wave-shaped peak positions, and the third fixing part and the first fixing part are staggered with each other, so that the fixing effect is better.
The shape of the fourth fixing member 5 is the same as that of the second fixing member 3, and the fourth fixing member 5 and the second fixing member 3 are formed by mirroring the plane perpendicular to the connecting member 2, so that the situation of left-right shaking can be avoided due to the cooperation between the fourth fixing member 5 and the second fixing member 3.
First mounting 1, connecting piece 2, second mounting 3, third mounting 4 and fourth mounting 5 all adopt memory alloy to make, can be more convenient place human blood vessel from human outside, and elasticity is good moreover, and the result of use is better.
The connecting piece 2 is one or more connecting rods uniformly distributed between the first fixing piece 3 and the second fixing piece 4, the connecting rods can incline towards the inner side or the outer side of the first fixing piece 3 and the second fixing piece 4, and when one connecting rod is adopted, the device can be prevented from turning over when blood flow impacts; in addition, when only three connecting rods are adopted and are positioned at the junction between the aortic valves, the proximal end of the aortic stent can be prevented from covering the coronary artery opening, and the phenomenon of obvious valve regurgitation can be avoided; moreover, the device can adapt to the angle and the shape of the left ventricular outflow tract and the aortic root through the inclination action of the connecting rod, and can ensure that the first fixing part 3 is positioned at the middle position of the aortic lumen, so that the first fixing part 3 is prevented from being too tightly contacted with the inner wall of the aorta, and the possibility of tearing the aorta is greatly reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The trans-valve anchoring device for retaining the aortic valve is characterized by comprising a first fixing piece, a connecting piece and a second fixing piece, wherein the first fixing piece is used for fixing an aortic blood vessel support and has elasticity, the second fixing piece is placed in a left ventricular outflow tract and has elasticity, the first fixing piece is connected with the top of the connecting piece, the bottom of the connecting piece is connected with the second fixing piece, the second fixing piece is positioned below the active valve and is clamped with the left ventricular outflow tract, the connecting piece penetrates through the active valve, the connecting piece is used for pulling the first fixing piece, and the first fixing piece is positioned at the far end of the active valve.
2. The aortic valve retaining trans-valve anchoring device of claim 1, wherein the first and second fixation members are each in the shape of an undulating ring.
3. The aortic valve retaining trans-valve anchoring device of claim 2, wherein the first and second securing members undulate in a direction parallel to each other with respect to the connector.
4. The aortic valve retaining trans-valve anchoring device of claim 2, wherein the inner diameter of the first fixture is greater than the inner diameter of the second fixture.
5. The aortic valve retaining trans-valve anchoring device of claim 1, wherein the first fixture, connector, and second fixture are a unitary structure.
6. The aortic valve retaining trans-valve anchoring device of claim 1, wherein the top of the first fixture is provided with a plurality of third fixtures and the bottom of the second fixture is provided with a plurality of fourth fixtures.
7. The aortic valve retaining trans-valve anchoring device of claim 6, wherein the third fixture is the same shape as the first fixture, and the third fixture is mirrored from the first fixture in a plane perpendicular to the connector.
8. The aortic valve retaining trans-valve anchoring device of claim 6, wherein the fourth fixture is the same shape as the second fixture, and the fourth fixture is mirrored from the second fixture in a plane perpendicular to the connector.
9. The aortic valve retaining trans-valve anchoring device of claim 6, wherein the first, connector, second, third and fourth fixtures are made of a memory alloy.
10. The aortic valve retaining trans-valve anchoring device of claim 1, wherein the connecting member is one or more connecting rods uniformly distributed between the first and second fixation members, the connecting rods being tiltable towards the inside or the outside of the first and second fixation members.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811008709.0A CN109106485B (en) | 2018-08-31 | 2018-08-31 | Trans-valvular anchoring device for aortic valve retention |
| PCT/CN2019/086552 WO2020042668A1 (en) | 2018-08-31 | 2019-05-13 | Transvalvular anchoring device for retaining aortic valve |
| TW108121677A TWI735894B (en) | 2018-08-31 | 2019-06-21 | Transvalvular anchoring device for aortic valve sparing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811008709.0A CN109106485B (en) | 2018-08-31 | 2018-08-31 | Trans-valvular anchoring device for aortic valve retention |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109106485A CN109106485A (en) | 2019-01-01 |
| CN109106485B true CN109106485B (en) | 2020-02-07 |
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ID=64860327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811008709.0A Active CN109106485B (en) | 2018-08-31 | 2018-08-31 | Trans-valvular anchoring device for aortic valve retention |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN109106485B (en) |
| TW (1) | TWI735894B (en) |
| WO (1) | WO2020042668A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109106485B (en) * | 2018-08-31 | 2020-02-07 | 高峰 | Trans-valvular anchoring device for aortic valve retention |
| CN110507451A (en) * | 2019-08-29 | 2019-11-29 | 上海翰凌医疗器械有限公司 | Valve bracket and artificial valve with it |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6482228B1 (en) * | 2000-11-14 | 2002-11-19 | Troy R. Norred | Percutaneous aortic valve replacement |
| WO2003094795A1 (en) * | 2002-05-10 | 2003-11-20 | Cordis Corporation | Method of making a medical device having a thin wall tubular membrane over a structural frame |
| SE531468C2 (en) * | 2005-04-21 | 2009-04-14 | Edwards Lifesciences Ag | An apparatus for controlling blood flow |
| CN102283721B (en) * | 2006-06-01 | 2015-08-26 | 爱德华兹生命科学公司 | For improving the prosthetic insert of heart valve function |
| ES2421333T3 (en) * | 2008-07-17 | 2013-08-30 | Nvt Ag | Cardiac valve prosthesis system |
| US8734502B2 (en) * | 2008-12-17 | 2014-05-27 | Cook Medical Technologies Llc | Tapered stent and flexible prosthesis |
| CN101601618A (en) * | 2009-07-15 | 2009-12-16 | 郭伟 | A kind of aortic blood pipe holder |
| EP2732796A1 (en) * | 2012-11-20 | 2014-05-21 | Nakostech Sarl | Mitral valve replacement system |
| CN104274259B (en) * | 2014-10-30 | 2016-06-01 | 宁波健世生物科技有限公司 | The artificial valve prosthese of a kind of band lobe leaf clamping device |
| US9895222B2 (en) * | 2015-08-17 | 2018-02-20 | Venus Medtech (Hangzhou) Inc. | Aortic replacement valve |
| CN107019581B (en) * | 2016-02-02 | 2021-07-16 | 中国人民解放军第二军医大学 | Ascending aorta and aortic valve integrated intravascular stent |
| CN109106485B (en) * | 2018-08-31 | 2020-02-07 | 高峰 | Trans-valvular anchoring device for aortic valve retention |
-
2018
- 2018-08-31 CN CN201811008709.0A patent/CN109106485B/en active Active
-
2019
- 2019-05-13 WO PCT/CN2019/086552 patent/WO2020042668A1/en active Application Filing
- 2019-06-21 TW TW108121677A patent/TWI735894B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| TW202010480A (en) | 2020-03-16 |
| TWI735894B (en) | 2021-08-11 |
| WO2020042668A1 (en) | 2020-03-05 |
| CN109106485A (en) | 2019-01-01 |
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Effective date of registration: 20231225 Address after: 611, Huafeng international business building, 4018 Baoan Avenue, Yantian community, Xixiang street, Bao'an District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Yitai Technology Co.,Ltd. Address before: Department of Vascular Surgery, Haikou People's Hospital, No. 43 Renmin Avenue, Haidian Island, Meilan District, Haikou City, Hainan Province, 570100 Patentee before: Gao Feng |
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