CN113520675A - Anchoring device - Google Patents
Anchoring device Download PDFInfo
- Publication number
- CN113520675A CN113520675A CN202110912368.5A CN202110912368A CN113520675A CN 113520675 A CN113520675 A CN 113520675A CN 202110912368 A CN202110912368 A CN 202110912368A CN 113520675 A CN113520675 A CN 113520675A
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- CN
- China
- Prior art keywords
- heart valve
- anchoring
- anchoring ring
- ring
- anchoring device
- 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
- 238000004873 anchoring Methods 0.000 title claims abstract description 83
- 210000003709 heart valve Anatomy 0.000 claims abstract description 60
- 239000000463 material Substances 0.000 claims description 5
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 4
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims description 3
- 210000004115 mitral valve Anatomy 0.000 abstract description 14
- 230000002452 interceptive effect Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 210000004204 blood vessel Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 208000019622 heart disease Diseases 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004375 bundle of his Anatomy 0.000 description 1
- 208000018578 heart valve disease Diseases 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002861 ventricular Effects 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
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
- A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
- A61F2/2418—Scaffolds therefor, e.g. support stents
Landscapes
- 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 provides an anchoring device for fixing a prosthetic heart valve stent, comprising: the anchor ring is annular; the connecting rods are uniformly distributed on the anchoring ring, one ends of the connecting rods are fixedly connected with the anchoring ring, the other ends of the connecting rods face the same direction parallel to the central line of the anchoring ring and form an annular fixing part, and the connecting rods are used for fixing the artificial heart valve support. The invention changes the installation position of the artificial heart valve support through the anchoring device, so that the artificial heart valve support can be far away from the mitral valve, thereby reducing the risk of the artificial heart valve support interfering the mitral valve.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an anchoring device.
Background
With the increasing average life span, the incidence of heart disease is increasing. One of the major types of heart diseases is heart valve disease, and currently, artificial heart valves are mainly used to treat the heart disease. However, in the prior art, in order to make the artificial heart valve more stable after implantation, the artificial heart valve stent needs to be implanted at a deeper position, which results in a higher risk of the artificial heart valve stent interfering with the mitral valve.
It can be seen that the prior art has a problem that the risk of the artificial heart valve stent interfering with the mitral valve is high.
Disclosure of Invention
The embodiment of the invention provides an anchoring device, which aims to solve the problem that the risk of interference of a mitral valve by a prosthetic heart valve is high in the prior art.
To achieve the above object, an anchoring device for fixing a prosthetic heart valve stent according to an embodiment of the present invention includes: an anchoring ring and a plurality of connecting rods, wherein,
the anchoring ring is annular;
the connecting rods are uniformly distributed on the anchoring ring, one ends of the connecting rods are fixedly connected with the anchoring ring, the other ends of the connecting rods face the same direction parallel to the central line of the anchoring ring and form an annular fixing part, and the connecting rods are used for fixing the artificial heart valve support.
As an alternative embodiment, the end of the connecting rod remote from the anchoring ring is provided with an inner hook facing the inside of the anchoring ring, the inner hook being used for fixing a prosthetic heart valve stent.
As an optional implementation manner, one end of the connecting rod, which is far away from the anchoring ring, is provided with a magnetic attraction block, and the artificial heart valve stent is provided with the magnetic attraction block, and the connecting rod is connected with the artificial stent through the magnetic attraction block.
As an alternative embodiment, the anchoring ring is wave-shaped, one end of the connecting rod being connected to a trough of the wave-shape near the connecting rod.
As an alternative embodiment, the number of undulations of the anchoring ring corresponds to the number of connecting rods.
As an alternative embodiment, the material of the anchoring ring and the connecting rod is a nitinol material.
One of the above technical solutions has the following advantages or beneficial effects:
in the embodiment of the invention, the anchoring device is pre-placed at a position far away from the mitral valve, and then the artificial heart valve stent is fixed at the corresponding position and connected with the anchoring device, so that the stability of the whole structure is enhanced, the artificial heart valve stent can be far away from the mitral valve, and the risk of interference between the artificial heart valve stent and the mitral valve is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some 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 an anchoring device according to an embodiment of the present invention;
fig. 2 is a schematic plan view illustrating a disassembled structure of an anchoring device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a prosthetic heart valve stent according to an embodiment of the present invention;
FIG. 4 is a schematic view of an anchoring device delivery provided by an embodiment of the present invention;
FIG. 5 is a schematic illustration of a release process for an anchoring device according to an embodiment of the present invention;
FIG. 6 is a schematic view of an anchoring device according to an embodiment of the present invention in a released position;
FIG. 7 is a schematic delivery diagram of a prosthetic heart valve stent according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a release process of a prosthetic heart valve stent according to an embodiment of the present invention;
FIG. 9 is a schematic view of a prosthetic heart valve stent in a released position according to an embodiment of the present invention;
fig. 10 is a schematic view of the attachment position of an anchoring device and a prosthetic heart valve stent according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more.
As shown in fig. 1, an anchoring device 10 for securing a prosthetic heart valve stent 20 is provided according to an embodiment of the present invention, including: an anchoring ring 101 and a plurality of connecting rods 102, wherein,
the anchoring ring 101 is ring-shaped;
the connecting rods 102 are uniformly distributed on the anchoring ring 101, one ends of the connecting rods 102 are fixedly connected with the anchoring ring 101, the other ends of the connecting rods 102 face the same direction parallel to the midline of the anchoring ring 101 and form an annular fixing part, and the connecting rods 102 are used for fixing the artificial heart valve stent 20.
In this embodiment, the anchoring device 10 is fixed at a position far away from the mitral valve, and the prosthetic heart valve holder 20 is connected and fixed with the anchoring device 10 so that the prosthetic heart valve holder 20 can be far away from the mitral valve, thereby reducing the risk of interference between the prosthetic heart valve holder 20 and the mitral valve.
Wherein the anchoring ring 101 is fixed to the inner wall of the blood vessel after being delivered to the target site and released; after the artificial heart valve stent 20 is delivered and released, the artificial heart valve stent 20 is connected with the annular fixing part formed by the connecting rod 102 and is fixed at the native valve annulus region. In this way, the prosthetic heart valve holder 20 is moved away from the mitral valve, thereby reducing the risk of interference of the prosthetic heart valve holder 20 with the mitral valve; the anchoring device 10 can increase the stability of the artificial heart valve support 20 after installation and prevent the artificial heart valve support 20 from falling off.
In addition, the prosthetic heart valve stent 20 is of a self-expanding or balloon-expandable design, and the prosthetic heart valve stent 20 provided by the embodiment of the present invention is of a self-expanding structure, as shown in fig. 2.
In a state in which the anchoring device 10 is completely connected to the prosthetic heart valve holder 20, as shown in fig. 3, the anchoring device 10 is fixedly connected to the prosthetic heart valve holder 20 by the connecting rod 102.
As an alternative embodiment, the end of the connecting rod 102 remote from the anchoring ring 101 is provided with an inner hook facing the inside of the anchoring ring 101 for fixing the prosthetic heart valve holder 20.
In the present embodiment, the connection and fixation of the connection rod 102 and the prosthetic heart valve stent 20 are achieved by an inner hook. The artificial heart valve stent 20 is of a net structure, and the inner hooks are matched with the net structure and can be connected and fixed with the inner hooks after the artificial heart valve stent 20 is released.
Wherein the inner hook is formed by means of a setting heat treatment.
As an alternative embodiment, one end of the connecting rod 102 away from the anchoring ring 101 is provided with a magnetic block, and the artificial heart valve stent 20 is provided with a magnetic block, and the connecting rod 102 is connected with the artificial stent through the magnetic block.
In this embodiment, the anchoring device 10 is connected and fixed to the prosthetic heart valve holder 20 through the magnetic block. The magnetic block is a medical magnetic part, and correspondingly, the magnetic block is also mounted on the surface of the artificial heart valve stent 20, and is connected and fixed with the connecting rod 102 through magnetic force after the artificial heart valve stent 20 is released.
In addition, one end of the connecting rod 102 away from the anchoring ring 101 may be in the form of an annular bayonet to be fixedly connected with the prosthetic heart valve holder 20.
As an alternative embodiment, the anchoring ring 101 is wave-shaped, one end of the connecting rod 102 being connected to a trough of the wave-shape close to the connecting rod 102.
In the present embodiment, the anchoring device 10 needs to be compressed when the anchoring device 10 is transported, and in this case, the anchoring ring 101 of the anchoring device 10 is formed into a wave shape so that the wave shape can be easily compressed, and the wave shape can more stably fix the anchoring ring 101 to the inner wall of the blood vessel.
Wherein, according to the artificial heart valve stent 20 with different sizes, the anchoring ring 101 is designed to be composed of 3-12 waveforms to meet the size requirement. The anchoring ring 101 has a width and thickness of 0.3-3 mm to increase the strength of the structure.
As an alternative embodiment, the number of waves of the anchoring ring 101 corresponds to the number of connecting rods 102.
In this embodiment, the number of the waves and the number of the connecting rods 102 are consistent, so that the anchoring device 10 is uniformly stressed and the connection with the artificial heart valve stent 20 is more stable.
As an alternative embodiment, the material of the anchoring ring 101 and the connecting rod 102 is nitinol.
In this embodiment, the nickel-titanium alloy material of the anchoring ring 101 enables expansion and expansion of the anchoring device 10 after compression and release.
In use of the anchoring device 10, as shown in fig. 5, the anchoring device 10 is first delivered to the aortic position above the native valve. As further shown in fig. 6 and 7, the anchoring device 10 is released and the anchoring ring 101 abuts and is secured against the inner wall of the blood vessel. As shown in FIG. 8, the prosthetic heart valve stent 20 is delivered to the position of the connecting rods 102 of the anchoring device 10, as shown in FIG. 9, exposing the compressed prosthetic heart valve stent 20 and confirming that there is no abnormality in position. And finally, releasing the artificial heart valve support 20, connecting and fixing the artificial heart valve support 20 with the anchoring device 10, and abutting and fixing the artificial heart valve support 20 with the inner wall of the original valve ring area to complete the implantation of the artificial heart valve support 20. The position of the prosthetic heart valve holder 20 can be made higher than the ventricular position by the anchoring device 10, thereby reducing the risk of interference with the mitral valve while avoiding compression of the bundle of his left.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. An anchoring device for securing a prosthetic heart valve stent, comprising: an anchoring ring and a plurality of connecting rods, wherein,
the anchoring ring is annular;
the connecting rods are uniformly distributed on the anchoring ring, one ends of the connecting rods are fixedly connected with the anchoring ring, the other ends of the connecting rods face the same direction parallel to the central line of the anchoring ring and form an annular fixing part, and the connecting rods are used for fixing the artificial heart valve support.
2. The anchoring device of claim 1, wherein an end of the connecting rod remote from the anchoring ring is provided with an internal hook facing an inner side of the anchoring ring, the internal hook being for securing a prosthetic heart valve stent.
3. The anchoring device of claim 1, wherein a magnetic block is disposed at an end of the connecting rod away from the anchoring ring, and the prosthetic heart valve stent is disposed with the magnetic block, and the connecting rod is connected to the prosthetic stent through the magnetic block.
4. The anchoring device of claim 1 wherein said anchoring ring is wave-shaped, one end of said connecting rod being connected to a trough of said wave-shape adjacent said connecting rod.
5. The anchoring device of claim 4 wherein the number of undulations in the anchoring ring is the same as the number of tie rods.
6. An anchoring device as defined in claim 1, wherein the material of said anchoring ring and said connecting rod is a nitinol material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110912368.5A CN113520675A (en) | 2021-08-10 | 2021-08-10 | Anchoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110912368.5A CN113520675A (en) | 2021-08-10 | 2021-08-10 | Anchoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113520675A true CN113520675A (en) | 2021-10-22 |
Family
ID=78091393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110912368.5A Pending CN113520675A (en) | 2021-08-10 | 2021-08-10 | Anchoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113520675A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109350311A (en) * | 2018-12-14 | 2019-02-19 | 宁波健世生物科技有限公司 | A kind of valve bracket of controlled release |
| CN109715111A (en) * | 2016-09-15 | 2019-05-03 | 爱德华兹生命科学公司 | Heart valve clamping device and delivery system |
| 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 |
| CN215228844U (en) * | 2021-08-10 | 2021-12-21 | 康迪泰科(北京)医疗科技有限公司 | Anchoring device |
-
2021
- 2021-08-10 CN CN202110912368.5A patent/CN113520675A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109715111A (en) * | 2016-09-15 | 2019-05-03 | 爱德华兹生命科学公司 | Heart valve clamping device and delivery system |
| CN109350311A (en) * | 2018-12-14 | 2019-02-19 | 宁波健世生物科技有限公司 | A kind of valve bracket of controlled release |
| 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 |
| CN215228844U (en) * | 2021-08-10 | 2021-12-21 | 康迪泰科(北京)医疗科技有限公司 | Anchoring device |
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