CN117379227A - Heart valve prosthesis that adaptively avoids native tissue - Google Patents
Heart valve prosthesis that adaptively avoids native tissue Download PDFInfo
- Publication number
- CN117379227A CN117379227A CN202210780507.8A CN202210780507A CN117379227A CN 117379227 A CN117379227 A CN 117379227A CN 202210780507 A CN202210780507 A CN 202210780507A CN 117379227 A CN117379227 A CN 117379227A
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- Prior art keywords
- frame
- valve prosthesis
- heart valve
- elastic
- inner cylinder
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Classifications
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- 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
-
- 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
-
- 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
- A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
- A61F2/246—Devices for obstructing a leak through a native valve in a closed condition
-
- 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
- A61F2/2472—Devices for testing
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0014—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof using shape memory or superelastic materials, e.g. nitinol
Landscapes
- Health & Medical Sciences (AREA)
- Cardiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Transplantation (AREA)
- Oral & Maxillofacial 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
本发明提供了一种自适应避让原生组织的心脏瓣膜假体，涉及医疗器械技术领域。所述瓣膜假体包括：内筒架和外支架；外支架包括：顶框、底框和若干支撑件；顶框和底框分别与内筒架连接固定，顶框与底框通过支撑件连接固定；内筒架和外支架均附着有软性密封膜；内筒架内设置有假体瓣叶；内筒架和/或外支架设置有若干向上向内延伸的弹性钩爪；外支架上的软性密封膜能够在接触到原生组织时自适应内陷，有效规避了瓣膜假体干涉原生组织导致并发症产生的情况；弹性钩爪向上勾住原生瓣叶，原生瓣叶在弹性钩爪末端翻卷，配合腱索对原生瓣叶的下拉，使得原生瓣叶密封包裹住瓣膜假体的侧壁，既起到了定位作用，又防止了瓣周漏。
The invention provides a heart valve prosthesis that adaptively avoids native tissue, and relates to the technical field of medical devices. The valve prosthesis includes: an inner barrel frame and an outer frame; the outer frame includes: a top frame, a bottom frame and several supports; the top frame and the bottom frame are respectively connected and fixed with the inner barrel frame, and the top frame and the bottom frame are connected through supports Fixed; the inner barrel frame and the outer frame are both attached with soft sealing films; the inner barrel frame is provided with prosthetic leaflets; the inner barrel frame and/or the outer frame are provided with a number of elastic hooks extending upward and inward; the outer frame is provided with The soft sealing membrane can self-retract when it comes into contact with the native tissue, effectively avoiding complications caused by the valve prosthesis interfering with the native tissue; the elastic hook hooks the native valve leaflet upward, and the native valve leaflet is in the elastic hook claw The end is rolled, and the chordae tendineae pull down the native valve leaflets, so that the native valve leaflets seal and wrap the side wall of the valve prosthesis, which not only plays a positioning role, but also prevents paravalvular leakage.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a heart valve prosthesis capable of adaptively avoiding primary tissues.
Background
Valves exist in the heart and large blood vessels of a human body, and the valves are used for ensuring unidirectional flow of blood flow, namely arterial blood centrifugal flow and venous blood centripetal flow, and if the valves are damaged, blood flow is disturbed, so that morbidity is caused to people. The ideal valve has good compatibility with human body, no mechanical failure and no thrombus. Valve replacement therapy should be performed when the flow dynamics are affected due to stenosis or insufficiency of the heart valve caused by various reasons.
If the native valve in the human heart presents an essential problem and is not amenable to repair surgery, replacement of the native valve by a heart valve prosthesis is required. The native valve is typically replaced with a prosthetic mechanical valve made of synthetic material or a prosthetic biological valve made of biological tissue.
However, the existing heart valve prosthesis is easy to interfere with the primary tissues of a patient, such as atrioventricular node, conduction bundle, outflow tract and the like, and causes great damage to the primary tissues of the patient, and complications are easy to generate.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a heart valve prosthesis capable of adaptively avoiding primary tissues, and solves the problem that the heart valve prosthesis is easy to cause complications.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme:
a heart valve prosthesis that adaptively evades native tissue, the valve prosthesis comprising: an inner cylinder frame and an outer bracket;
the outer bracket includes: a top frame, a bottom frame and a plurality of supporting pieces;
the top frame and the bottom frame are respectively connected and fixed with the inner cylinder frame, and the top frame and the bottom frame are connected and fixed through a supporting piece;
the inner cylinder frame and the outer bracket are both attached with soft sealing films;
a prosthetic valve leaf is arranged in the inner cylinder frame;
the inner cylinder frame and/or the outer bracket are/is provided with a plurality of elastic hooks extending upwards and inwards.
Preferably, the support member is arranged corresponding to the isthmus of the native valve, and the support member is clamped on the isthmus of the native valve.
Preferably, the support member is provided as a support bar.
Preferably, the support member is provided as an elastic member.
Preferably, the elastic claw is attached with an anti-slip braid.
Preferably, the inner cylinder frame and/or the outer bracket are/is provided with a sensor.
Preferably, the top ends of the elastic claws are bent downwards and inwards to extend.
Preferably, the outer wall of the inner cylinder frame is provided with elastic inner claws which are in one-to-one correspondence with the elastic claws, and the elastic inner claws are matched with the elastic claws to clamp the primary valve leaflets.
Preferably, the valve prosthesis is woven with a mesh of soft wires.
(III) beneficial effects
The invention provides a heart valve prosthesis capable of adaptively avoiding primary tissues. Compared with the prior art, the method has the following beneficial effects:
in the present invention, the valve prosthesis comprises: an inner cylinder frame and an outer bracket; the outer support includes: a top frame, a bottom frame and a plurality of supporting pieces; the top frame and the bottom frame are respectively connected and fixed with the inner cylinder frame, and the top frame and the bottom frame are connected and fixed through a supporting piece; the inner cylinder frame and the outer bracket are both attached with soft sealing films, so that the heart valve prosthesis establishes a single blood channel formed by the inner cylinder frame; the inner cylinder frame is internally provided with prosthetic valve leaves; the inner cylinder frame and/or the outer bracket are provided with a plurality of elastic hooks extending upwards and inwards; the soft sealing membrane on the outer bracket can adaptively sink when contacting with the primary tissue, so that the primary tissue is avoided, and the condition that the valve prosthesis interferes with the primary tissue to cause complications is effectively avoided; the elastic claw penetrates through the gaps among the chordae tendineae to hook the native valve leaflet upwards, the native valve leaflet turns over at the tail end of the elastic claw, and the native valve leaflet is pulled downwards by the chordae tendineae, so that the native valve She Mifeng wraps the side wall of the valve prosthesis, the positioning effect is achieved, and the paravalvular leakage is prevented.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of an inner barrel holder and an outer bracket in embodiment 1 of the present invention;
FIG. 2 is a schematic diagram showing the assembly of the sensor in embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of an inner barrel holder and an outer bracket in embodiment 2 of the present invention;
fig. 4 is a schematic structural view of an inner barrel holder and an outer bracket in embodiment 3 of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The heart valve prosthesis capable of adaptively avoiding the primary tissues solves the problem that complications are easily caused by the heart valve prosthesis.
The technical scheme in the embodiment of the application aims to solve the technical problems, and the overall thought is as follows:
in an embodiment of the invention, the valve prosthesis comprises: an inner cylinder frame and an outer bracket; the outer support includes: a top frame, a bottom frame and a plurality of supporting pieces; the top frame and the bottom frame are respectively connected and fixed with the inner cylinder frame, and the top frame and the bottom frame are connected and fixed through a supporting piece; the inner cylinder frame and the outer bracket are both attached with soft sealing films, so that the heart valve prosthesis establishes a single blood channel formed by the inner cylinder frame; the inner cylinder frame is internally provided with prosthetic valve leaves; the inner cylinder frame and/or the outer bracket are provided with a plurality of elastic hooks extending upwards and inwards; the soft sealing membrane on the outer bracket can adaptively sink when contacting with the primary tissue, so that the primary tissue is avoided, and the condition that the valve prosthesis interferes with the primary tissue to cause complications is effectively avoided; the elastic claw penetrates through the gaps among the chordae tendineae to hook the native valve leaflet upwards, the native valve leaflet turns over at the tail end of the elastic claw, and the native valve leaflet is pulled downwards by the chordae tendineae, so that the native valve She Mifeng wraps the side wall of the valve prosthesis, the positioning effect is achieved, and the paravalvular leakage is prevented.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 1, the present invention provides a heart valve prosthesis that adaptively evades native tissue, the valve prosthesis comprising: an inner cylinder frame 10 and an outer bracket 20;
the outer bracket 20 includes: a top frame 21, a bottom frame 22 and a number of supports 23;
the top frame 21 and the bottom frame 22 are respectively connected and fixed with the inner cylinder frame 10, and the top frame 21 and the bottom frame 22 are connected and fixed through a supporting piece 23;
the inner cylinder frame 10 and the outer bracket 20 are both attached with soft sealing films, so that a single blood channel formed by the inner cylinder frame 10 is established by the heart valve prosthesis, and the soft sealing films promote friction force between the outer bracket 20 and heart tissues, so that the heart valve prosthesis is supported and installed more firmly;
a prosthetic valve leaf 11 is arranged in the inner cylinder frame 10;
the inner cylinder frame 10 and/or the outer bracket 20 are provided with a plurality of elastic hooks 24 extending upwards and inwards;
the soft sealing membrane on the outer bracket 20 can adaptively sink when contacting with the primary tissues (such as atrioventricular node, conducting bundle, outflow channel and the like), so as to avoid the primary tissues, and effectively avoid the condition that the valve prosthesis interferes with the primary tissues to cause complications; the elastic claw 24 passes through the gaps between the chordae tendineae and hooks the native valve leaflet upwards, the native valve leaflet turns over at the tail end of the elastic claw 24, and the native valve leaflet is pulled down by the chordae tendineae, so that the native valve She Mifeng wraps the side wall of the valve prosthesis, thereby playing a role in positioning and preventing paravalvular leakage.
As shown in fig. 1, the supporting piece 23 is arranged corresponding to the isthmus of the native valve, the supporting piece 23 is clamped on the isthmus of the native valve, so that the mounting stability of the valve prosthesis is enhanced, meanwhile, the native valve leaflets and the supporting piece 23 are arranged in a staggered manner, the condition that the supporting piece 23 interferes with the native valve leaflets is avoided, and the sealing and wrapping of the native valve leaflets on the side wall of the valve prosthesis are ensured.
The support 23 is provided as a support bar.
The inner cylinder frame 10 and the outer bracket 20 are made of elastic metal, and the soft sealing film comprises: a polymer material film and/or a biological material film;
the elastic metal includes: nitinol, resilient stainless steel, and the like.
The polymer material film includes: PET, TPU, PU, PE, PA, PP, PS, etc.
The biomaterial film includes: bovine pericardium biofilm, porcine pericardium biofilm, equine pericardium biofilm, etc.
The elastic fingers 24 are attached with an anti-slip braid, which can increase friction with the native leaflets.
As shown in fig. 2, the inner cylinder frame 10 and/or the outer bracket 20 are provided with a sensor 30, and the sensor 30 is provided with a built-in power supply and wirelessly transmits information.
The sensor 30 adopts a pressure sensor, and the sensor 30 is arranged on the outer bracket 20 and is used for detecting the compression strength of the outer bracket 20 to the primary tissue, and the alarm is triggered by the overlarge compression strength.
The sensor 30 is disposed on the inner barrel holder 10 for detecting a valve-spanning differential pressure.
The sensor 30 is a flow sensor, and the sensor is arranged on the outer bracket 20 and is used for detecting the perivalvular leakage.
The sensor 30 is provided on the inner cylinder frame 10, and can detect the damage and reflux of the valve in time.
A metal soft wire mesh can be woven everywhere of the valve prosthesis;
example 2:
as shown in fig. 3, the supporting member 23 is provided as an elastic member, and the supporting member 23 can be elastically deformed downward to perform a buffering function when the chordae tendineae pull the native valve leaflet downward.
Example 3:
as shown in fig. 3, the top ends of the elastic claws 24 are bent downward and inward, so that the elastic claws 24 are more attached to the native valve leaflet, the bent portions increase the acting area of the elastic claws 24 and the inner barrel holder 10, and the stability of clamping the native valve leaflet is improved.
Example 4:
as shown in fig. 4, the outer wall of the inner cylinder frame 10 is provided with elastic inner claws 12 corresponding to the elastic claws 24 one by one, and the elastic inner claws 12 and the elastic claws 24 cooperate to clamp the native valve leaflet, so as to improve the stability of clamping the native valve leaflet.
In summary, compared with the prior art, the invention has the following beneficial effects:
in an embodiment of the invention, the valve prosthesis comprises: an inner cylinder frame and an outer bracket; the outer support includes: a top frame, a bottom frame and a plurality of supporting pieces; the top frame and the bottom frame are respectively connected and fixed with the inner cylinder frame, and the top frame and the bottom frame are connected and fixed through a supporting piece; the inner cylinder frame and the outer bracket are both attached with soft sealing films, so that the heart valve prosthesis establishes a single blood channel formed by the inner cylinder frame; the inner cylinder frame is internally provided with prosthetic valve leaves; the inner cylinder frame and/or the outer bracket are provided with a plurality of elastic hooks extending upwards and inwards; the soft sealing membrane on the outer bracket can adaptively sink when contacting with the primary tissue, so that the primary tissue is avoided, and the condition that the valve prosthesis interferes with the primary tissue to cause complications is effectively avoided; the elastic claw penetrates through the gaps among the chordae tendineae to hook the native valve leaflet upwards, the native valve leaflet turns over at the tail end of the elastic claw, and the native valve leaflet is pulled downwards by the chordae tendineae, so that the native valve She Mifeng wraps the side wall of the valve prosthesis, the positioning effect is achieved, and the paravalvular leakage is prevented.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A heart valve prosthesis that adaptively evades native tissue, the valve prosthesis comprising: an inner cylinder frame (10) and an outer bracket (20);
the outer bracket (20) comprises: a top frame (21), a bottom frame (22) and a plurality of supporting pieces (23);
the top frame (21) and the bottom frame (22) are respectively connected and fixed with the inner cylinder frame (10), and the top frame (21) and the bottom frame (22) are connected and fixed through a supporting piece (23);
the inner cylinder frame (10) and the outer bracket (20) are both attached with soft sealing films;
a prosthetic valve leaf (11) is arranged in the inner cylinder frame (10);
the inner cylinder frame (10) and/or the outer bracket (20) are provided with a plurality of elastic hooks (24) extending upwards and inwards.
2. The heart valve prosthesis adapted to avoid native tissue according to claim 1, wherein the support (23) is arranged corresponding to the isthmus of the native valve, the support (23) being snapped onto the isthmus of the native valve.
3. Heart valve prosthesis adapted to avoid native tissue according to claim 2, characterized in that the support (23) is provided as a support bar.
4. Heart valve prosthesis adapted to avoid native tissue according to claim 2, characterized in that the support (23) is provided as an elastic member.
5. The heart valve prosthesis adapted to avoid native tissue according to claim 1, wherein the elastic fingers (24) are attached with a non-slip braid.
6. Heart valve prosthesis adapted to avoid native tissue according to claim 1, characterized in that the inner cartridge holder (10) and/or the outer holder (20) are provided with sensors (30).
7. The heart valve prosthesis adapted to avoid native tissue according to claim 1, wherein the tips of the resilient fingers (24) are bent downwardly and inwardly.
8. The heart valve prosthesis capable of adaptively avoiding the primary tissue according to claim 1, wherein the outer wall of the inner cylinder frame (10) is provided with elastic inner claws (12) in one-to-one correspondence with the elastic claws (24), and the elastic inner claws (12) are matched with the elastic claws (24) to clamp the primary valve leaflet.
9. Heart valve prosthesis according to any of claims 1 to 8, characterized in that the valve prosthesis is woven with a soft wire mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210780507.8A CN117379227A (en) | 2022-07-04 | 2022-07-04 | Heart valve prosthesis that adaptively avoids native tissue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210780507.8A CN117379227A (en) | 2022-07-04 | 2022-07-04 | Heart valve prosthesis that adaptively avoids native tissue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117379227A true CN117379227A (en) | 2024-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210780507.8A Pending CN117379227A (en) | 2022-07-04 | 2022-07-04 | Heart valve prosthesis that adaptively avoids native tissue |
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| CN (1) | CN117379227A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119499013A (en) * | 2024-10-18 | 2025-02-25 | 上海以心医疗器械有限公司 | Valve stents and valve prostheses |
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| CN109199640A (en) * | 2018-10-24 | 2019-01-15 | 宁波健世生物科技有限公司 | A kind of artificial valve prosthese |
| CN111329621A (en) * | 2019-07-26 | 2020-06-26 | 闫朝武 | Transcatheter aortic prosthetic valve, delivery system and delivery method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119499013A (en) * | 2024-10-18 | 2025-02-25 | 上海以心医疗器械有限公司 | Valve stents and valve prostheses |
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Application publication date: 20240112 |