CN113648109B - Transcatheter artificial mitral valve system - Google Patents
Transcatheter artificial mitral valve system Download PDFInfo
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- CN113648109B CN113648109B CN202111005773.5A CN202111005773A CN113648109B CN 113648109 B CN113648109 B CN 113648109B CN 202111005773 A CN202111005773 A CN 202111005773A CN 113648109 B CN113648109 B CN 113648109B
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- traction
- assembly
- anchoring
- apex
- connecting seat
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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
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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
- A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
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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
- A61F2/2442—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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- 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
The invention belongs to the technical field of medical appliances, in particular to the A61F2/24 field, and particularly relates to a transcatheter artificial mitral valve system. The present invention provides a transcatheter prosthetic mitral valve system comprising a prosthetic valve assembly configured as a frame-like structure with gradually expanding diameter along a reverse direction of blood flow; the prosthetic valve assembly is convergent at a distal-most end in a blood flow direction; a traction assembly disposed at a distal end of the prosthetic valve assembly; a apex anchor assembly extending from outside the apex to the traction assembly. Through setting up the haulage rope as elastic rope, make prosthetic valve subassembly under the traction of heart apex anchor subassembly, can tighten up or expand and lengthen along with the ventricular diastole diminishing to can keep certain traction force, the normal diastole of haulage rope cooperation ventricle does not influence the normal function of ventricle, reduces simultaneously and pulls heart muscle, avoids causing serious damage to the myocardium.
Description
Technical Field
The invention belongs to the technical field of medical appliances, in particular to the A61F2/24 field, and particularly relates to a transcatheter artificial mitral valve system.
Background
The operation of heart valve disease is one of the most challenging operations in the area of structural heart disease, and the birth of transcatheter interventions has rewritten the history of this area. The heart valve is made to be gold-digging and hot earth while the disease treatment history is rewritten through the breakthrough of the technology from chest opening to minimally invasive intervention. Mitral Regurgitation (MR) is the most common valve pathology in the western world, and epidemiological studies in europe and america have shown that the prevalence reaches 10% in the 75 year old and significantly exceeds aortic valve pathology. It is estimated that severe MR patients in our country are over 1500 tens of thousands, but the surgical treatment rate is lower than 2%. Study data show that more than half of patients with severe symptoms of mitral regurgitation have not been selected for surgical treatment due to high surgical risk. However, the global industry and doctors pay more attention to treatment of mitral valve diseases, and mitral valve has a great risk and technical challenge due to its structural characteristics (D shape + saddle shape) determining the therapeutic products, so that few people in China or even the world currently make breakthrough progress in the field of mitral valve treatment. The current market for treating mitral valve maturation is mainly based on medicines and surgical operations, the development of minimally invasive operations brings hopes for treating mitral valve, a batch of instruments mainly used for interventional repair are currently being subjected to clinical research before marketing or are already marketed, and Chinese patent with the authority of CN106236325B provides an artificial mitral annuloplasty ring conveyor and an artificial mitral annuloplasty ring conveying system, wherein the main principles are that annuloplasty, edge-to-edge repair, chordae tendineae repair and leaflet molding are adopted, but the repair in any mode cannot thoroughly solve the problem of mitral regurgitation without obvious defects for a long time and effectively. There is a need for a transcatheter aortic valve-like product to replace/replace a native diseased valve, and mitral valve replacement aims to replace the diseased native valve by transapical/transfemoral implantation of a prosthetic heart valve, thereby long-term and effective solving the problem of mitral regurgitation. The replacement surgery has wider indication for repair, the treatment is more thorough and effective, and the mitral valve disease cured by the replacement of high-quality products has far more ideal effect than repair.
There is only one commercially available version of the ductal apex access mitral valve system approved by the european union, tendyne mitral valve system by Abbott corporation. The product is implanted into the mitral valve position of a patient to replace a diseased mitral valve through a catheter via a transapical access, and the valve is connected to the outer wall of the transapical ventricle through a traction rope and fixed at the transapical position through an anchor disc. Up to now, more than 300 patients have implanted Tendyne valve systems, which greatly improves their quality of life.
The development of existing valve system technologies, represented by the Tendyne valve system, presents several problems: (1) The connecting rope used by the valve system and the apex of the heart is shortened in the distance from the apex of the heart to the plane of the annulus when the ventricle contracts, and the traction rope becomes loose, so that the valve loses the traction in the direction of the apex of the heart for a short time, and the valve system is attached to the structure of the native annulus, so that the valve system is attached to the structure of the native annulus, and the valve leaks around the valve and slides into the atrium for a short time; in the diastole of the heart chamber, the ventricular distance is increased, the distance between the apex of the heart and the plane of the annulus is increased, the traction rope is tightly pulled, at the moment, the normal comfort of the ventricle is limited to a certain extent, the normal heart function is influenced, and meanwhile, the heart muscle is also damaged by certain pulling. (2) The fixed point between the bracket and the connecting rope is positioned in the opening area of the valve leaflet, so that the opening area of the valve is reduced. (3) The valve to the valve annulus is fixed at the apex position through a connecting rope, so that the problem of left ventricular outflow obstruction is easily caused.
Disclosure of Invention
In view of the above, the present invention provides a transcatheter prosthetic mitral valve system comprising
A prosthetic valve assembly configured in a frame-like configuration with a gradual expansion of the loop diameter in a direction opposite to the blood flow; the prosthetic valve assembly is convergent at a distal-most end in a blood flow direction;
a traction assembly disposed at a distal end of the prosthetic valve assembly;
a apex anchor assembly extending from outside the apex to the traction assembly.
As a preferred technical scheme, the traction assembly comprises a connecting seat and a connecting cap, wherein the connecting cap is arranged at the far end of the connecting seat, and the connecting seat and the connecting cap are connected in a matched manner through internal threads of the connecting cap and external threads of the connecting seat.
As a preferred technical solution, the connection seat includes a threaded portion and an end portion, the end portion being disposed at a proximal end of the threaded portion, and an outer diameter of the end portion being larger than an outer diameter of the threaded portion.
As a preferable technical scheme, grooves arranged along the blood flowing direction are formed in the connecting seat, the number of the grooves is 3-8, a plurality of the grooves are uniformly formed along the outer ring of the connecting seat, and the grooves penetrate through the end part and the threaded part of the connecting seat.
As a preferred technical scheme, the prosthetic valve component is provided with a plurality of connecting feet at the far end, the connecting feet are arranged in parallel along the blood flow direction, and the connecting feet are matched with the grooves.
As a preferred solution, the distal ends of the plurality of connection pins are connected to each other by means of a circular ring.
As a preferred technical scheme, the apex anchor assembly comprises a traction rope and a gear mechanism, wherein the gear mechanism is arranged on the outer side of the apex, and the traction rope is connected with the traction assembly and the gear mechanism; the hauling rope is arranged as an elastic rope.
As a preferred technical scheme, the device also comprises an intracardiac anchoring assembly, the intracardiac anchoring assembly comprises an anchoring part and a traction part, the anchoring part is used for fixing the intracardiac anchoring component on the inner side wall of the heart muscle, and the traction rope passes through the traction part to change the traction direction.
As a preferable technical scheme, the anchoring part is provided with a plurality of claw-shaped structures which are turned outwards, the traction part is provided with a circular ring structure with a cross beam in the middle, and the anchoring part is fixedly connected with the circular ring structure and is uniformly distributed in the center of the circular ring structure; the cross beam is used for changing the traction direction of the traction rope.
As a preferred technical solution, the intracardiac anchoring assembly is configured as a bent linear structure; the linear structure body is bent at the middle position to form a traction part, and two end parts of the linear structure body are turned outwards to form an anchoring part of the hook-shaped structure.
The beneficial effects are that: the invention provides a transcatheter artificial mitral valve system, which is used for solving the problem of difficult fixation of an artificial valve in a heart, and by arranging a traction rope as an elastic rope, a prosthetic valve component can be tightened along with the contraction of a heart chamber and the expansion of the heart chamber or prolonged along with the expansion of the heart chamber under the traction of a heart apex anchor component, and a certain traction pulling force can be maintained, and the traction rope is matched with the normal expansion of the heart chamber, so that the normal function of the heart chamber is not influenced, the pulling of heart muscles is reduced, and the serious damage to the heart muscles is avoided.
The invention provides a unique bracket structure, wherein a plurality of parallel connecting feet are arranged at the far end of a prosthetic valve component and are used as connecting structures of the prosthetic valve component and a traction component, and the connecting structures are arranged outside the opening area of valve leaflets, so that the opening area of the valve leaflets is not influenced.
The present invention provides an intracardiac anchoring assembly in a transcatheter mitral valve system that reduces the risk of obstruction by adding an intracardiac fixation point, including an intracardiac muscle anchoring structure and delivery means, limiting the valve system to the left ventricular outflow tract direction/position.
Drawings
FIG. 1 is a schematic illustration of a transcatheter mitral valve prosthesis system in place for use within a heart, as provided by the present invention;
FIG. 2 is a schematic diagram of the architecture of a transcatheter prosthetic mitral valve system provided in an embodiment;
FIG. 3 is a schematic illustration of the structure of a prosthetic valve assembly provided in an embodiment;
FIG. 4 is a schematic view of a connector provided in an embodiment;
FIG. 5 is a schematic diagram of the architecture of a transcatheter prosthetic mitral valve system provided in an embodiment;
FIG. 6 is a schematic illustration of an application site of a transcatheter prosthetic mitral valve system within a heart provided in an embodiment;
FIG. 7 is a schematic illustration of an application site within a heart of an intracardiac anchoring assembly provided in an embodiment;
FIG. 8 is a schematic illustration of the structure of an intracardiac anchor assembly provided in an embodiment;
FIG. 9 is a schematic illustration of an application site within a heart of an intracardiac anchoring assembly provided in an embodiment;
FIG. 10 is a schematic illustration of the structure of an intracardiac anchor assembly provided in an embodiment;
FIG. 11 is a schematic illustration of the delivery principle of an intracardiac anchor assembly provided in an embodiment;
FIG. 12 is a schematic illustration of the delivery principle of an intracardiac anchor assembly provided in an embodiment;
wherein, 1-prosthetic valve assembly, 11-connecting leg, 2-traction assembly, 21-connecting seat, 2101-threaded portion, 2102-end portion, 2103-groove, 22-connecting cap, 3-apex anchor assembly, 31-traction rope, 32-gear mechanism, 4-endocardial anchor assembly, 41-anchor portion, 42-traction portion; 51-left atrium, 52-left ventricle, 53-ventricular wall structure, 6-delivery sheath.
Detailed Description
A transcatheter prosthetic mitral valve system as shown in figures 1-12, comprising
A prosthetic valve assembly 1, the prosthetic valve assembly 1 being provided in a frame-like structure with gradually expanding diameters in opposite directions of blood flow; the prosthetic valve assembly 1 is convergent at the most distal end in the direction of blood flow;
a traction assembly 2, said traction assembly 2 being arranged at the distal end of said prosthetic valve assembly 1;
apex anchor assembly 3, said apex anchor assembly 3 extending from outside the apex to said traction assembly 2.
As shown in fig. 2, in some preferred embodiments, the traction assembly 2 includes a coupling seat 21 and a coupling cap 22, the coupling cap 22 being disposed at a distal end of the coupling seat 21, the coupling seat 21 and the coupling cap 22 being coupled by female threads of the coupling cap 22 and male threads of the coupling seat 21.
In some preferred embodiments, the connecting seat 21 includes a threaded portion 2101 and an end portion 2102, the end portion 2102 being disposed proximally of the threaded portion 2101, the end portion 2102 having an outer diameter greater than the outer diameter of the threaded portion 2101.
In some preferred embodiments, the connecting seat 21 is provided with grooves 2103 arranged along the blood flowing direction, the number of the grooves 2103 is 3-8, a plurality of the grooves 2103 are uniformly arranged along the outer ring of the connecting seat 21, and the grooves 2103 are arranged through the end 2102 and the threaded portion 2101 of the connecting seat 21.
In some preferred embodiments, the prosthetic valve assembly 1 is provided with a plurality of connection legs 11 at the distal end, the plurality of connection legs 11 being arranged in parallel in the blood flow direction, the connection legs 11 being arranged in cooperation with the grooves 2103.
Preferably, when the connecting pin is embedded in the groove, the diameter of the outer ring of the connecting pin is the same as the minor diameter of the threaded part, so that the installation of the connecting pin is ensured not to affect the matching connection of the connecting seat and the connecting cap.
In some preferred embodiments, the distal ends of the plurality of connection pins 11 are connected to each other by a circular ring. Ring-limited pull-cord detachment from valve system
In some preferred embodiments, the apex anchor assembly 3 comprises a traction rope 31 and a gear mechanism 32, the gear mechanism 32 being disposed outside the apex, the traction rope 31 connecting the traction assembly 2 and the gear mechanism 32; the hauling cable 31 is provided as an elastic cable.
Preferably, the traction rope is made of super-elastic material or elastic structure, or the strength is enhanced by coating a layer of tubular braided fabric on the outer layer of the material.
In some preferred embodiments, as shown in fig. 5, 6 or 3 connecting legs in the prosthetic valve assembly are concentrated by being directed along the peripheral edge of the stent at a point on or outside the valve circumference that is secured to the apex anchor location by a traction mechanism coupled to a traction rope, thereby achieving the goal of not occupying the effective open area of the valve.
In some preferred embodiments, the endocardial anchoring assembly 4 is further included, the endocardial anchoring assembly 4 includes an anchoring portion 41 and a pulling portion 42, the anchoring portion 41 is used to fix the endocardial anchoring assembly 4 to the endocardial sidewall, and the pulling rope 31 passes through the pulling portion 42 to change the pulling direction.
As shown in fig. 7 and 8, in some preferred embodiments, the anchoring portion 41 is provided with a plurality of claw structures turned outwards, the traction portion 42 is provided with a circular ring structure with a beam in the middle, and the anchoring portion 41 is fixedly connected with the circular ring structure and uniformly distributed in the center of the circular ring structure; the cross beam is used to change the traction direction of the traction rope 31.
As shown in fig. 11, which is a schematic illustration of the delivery principle of the intracardiac anchor assembly, the delivery sheath 6 is withdrawn after reaching the target site to release the claws to penetrate the myocardium.
As shown in fig. 9 and 10, in some preferred embodiments, the intracardiac anchor assembly 4 is provided as a bent linear structure; the linear structure is bent at a middle position to form a traction portion 42, and both end portions 2102 of the linear structure are turned outwards to form an anchoring portion 41 of a hook-type structure.
As shown in fig. 12, which is a schematic view of the delivery principle of the intracardiac anchoring assembly, the anchoring portion 41 is a spring hook made of super elastic material, the tail structure is provided with a round hole through which a traction rope is passed, one end is connected with a valve system, the other end is connected with a cardiac apex fixing position, the spring hook is pressed and held into the delivery sheath 6 to be delivered to a target position before implantation, and then the spring hook is released, and the front end penetrates the cardiac muscle and is gripped for anchoring.
Working principle: the invention provides a transcatheter artificial mitral valve system, wherein a prosthetic valve component 1 is arranged in an annulus between a left atrium 51 and a left ventricle 52, a diseased native valve is replaced by the prosthetic valve, one end of the prosthetic valve system extending into the left atrium is provided with a fixing function through a structure with gradually expanded ring diameters, the prosthetic valve system is prevented from falling off in the left ventricle direction under the drive of blood flow, and meanwhile, a heart apex anchor component is arranged, and the prosthetic valve component is prevented from being extruded out and falling off in the left atrium direction when the ventricle is expanded under the traction action of a traction rope. The distal end of the artificial valve component is provided with a plurality of parallel connecting feet which are used as connecting structures of the artificial valve component and the traction component, and the connecting structures are arranged outside the opening area of the valve leaflet, so that the opening area of the valve leaflet is not influenced. The present invention provides an intracardiac anchoring assembly in a transcatheter mitral valve system that reduces the risk of obstruction by adding an intracardiac fixation point, including an intracardiac muscle anchoring structure and delivery means, limiting the valve system to the left ventricular outflow tract direction/position.
Claims (3)
1. A transcatheter prosthetic mitral valve system, comprising:
a prosthetic valve assembly (1), the prosthetic valve assembly (1) being arranged in a frame-like configuration with gradually expanding diameter along the reverse direction of blood flow; the prosthetic valve assembly (1) is convergent at the most distal end in the direction of blood flow;
a traction assembly (2), the traction assembly (2) being arranged at the distal end of the prosthetic valve assembly (1);
a apex anchor assembly (3), the apex anchor assembly (3) extending from outside the apex to the traction assembly (2);
the traction assembly (2) comprises a connecting seat (21) and a connecting cap (22), wherein the connecting cap (22) is arranged at the far end of the connecting seat (21), and the connecting seat (21) and the connecting cap (22) are connected in a matched manner through internal threads of the connecting cap (22) and external threads of the connecting seat (21);
the connecting seat (21) comprises a threaded portion (2101) and an end portion (2102), the end portion (2102) is arranged at the proximal end of the threaded portion (2101), and the outer diameter of the end portion (2102) is larger than that of the threaded portion (2101);
grooves (2103) arranged along the blood flow direction are formed in the connecting seat (21), the number of the grooves (2103) is 3-8, a plurality of the grooves (2103) are uniformly formed along the outer ring of the connecting seat (21), and the grooves (2103) penetrate through the end part (2102) and the threaded part (2101) of the connecting seat (21);
the artificial valve component (1) is provided with a plurality of connecting feet (11) at the far end, the connecting feet (11) are arranged in parallel along the blood flow direction, and the connecting feet (11) are matched with the grooves (2103);
the heart apex anchoring assembly (3) comprises a traction rope (31) and a gear mechanism (32), the gear mechanism (32) is arranged on the outer side of the heart apex, and the traction rope (31) is connected with the traction assembly (2) and the gear mechanism (32); the hauling rope (31) is arranged as an elastic rope;
the heart muscle traction device further comprises an heart muscle anchoring assembly (4), wherein the heart muscle anchoring assembly (4) comprises an anchoring part (41) and a traction part (42), the anchoring part (41) is used for fixing the heart muscle anchoring assembly (4) on the inner side wall of the heart muscle, and the traction rope (31) passes through the traction part (42) to change the traction direction;
the intracardiac anchoring component (4) is arranged as a bent linear structure body; the linear structure is bent at a middle position to form a traction part (42), and two end parts (2102) of the linear structure are turned outwards to form an anchoring part (41) of the hook-shaped structure.
2. A transcatheter prosthetic mitral valve system according to claim 1, wherein the distal ends of the plurality of connecting legs (11) are connected to each other by a circular ring.
3. The transcatheter prosthetic mitral valve system of claim 1, wherein the anchoring portion (41) is provided in a plurality of outwardly turned claw-like structures, the traction portion (42) is provided in a circular ring structure with a cross beam in the middle, and the anchoring portion (41) is fixedly connected to the circular ring structure and uniformly distributed at the center of the circular ring structure; the cross beam is used for changing the traction direction of the traction rope (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111005773.5A CN113648109B (en) | 2021-08-30 | 2021-08-30 | Transcatheter artificial mitral valve system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111005773.5A CN113648109B (en) | 2021-08-30 | 2021-08-30 | Transcatheter artificial mitral valve system |
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| CN113648109A CN113648109A (en) | 2021-11-16 |
| CN113648109B true CN113648109B (en) | 2023-08-25 |
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| CN202111005773.5A Active CN113648109B (en) | 2021-08-30 | 2021-08-30 | Transcatheter artificial mitral valve system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109925095A (en) * | 2017-12-18 | 2019-06-25 | 先健科技(深圳)有限公司 | Heart valve |
| CN110934664A (en) * | 2018-09-25 | 2020-03-31 | 先健科技(深圳)有限公司 | Heart valve |
| CN212522083U (en) * | 2019-12-19 | 2021-02-12 | 先健科技(深圳)有限公司 | Heart valve |
| CN213156729U (en) * | 2020-06-01 | 2021-05-11 | 宁波健世生物科技有限公司 | Novel valve prosthesis with adjustable fixing end |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9986993B2 (en) * | 2014-02-11 | 2018-06-05 | Tendyne Holdings, Inc. | Adjustable tether and epicardial pad system for prosthetic heart valve |
| US20190343634A1 (en) * | 2018-05-09 | 2019-11-14 | Neochord, Inc. | Radial arm tissue anchor for minimally invasive heart valve repair |
| US20210030537A1 (en) * | 2019-07-31 | 2021-02-04 | Tendyne Holdings, Inc. | Tethering System For A Prosthetic Heart Valve |
-
2021
- 2021-08-30 CN CN202111005773.5A patent/CN113648109B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109925095A (en) * | 2017-12-18 | 2019-06-25 | 先健科技(深圳)有限公司 | Heart valve |
| CN110934664A (en) * | 2018-09-25 | 2020-03-31 | 先健科技(深圳)有限公司 | Heart valve |
| CN212522083U (en) * | 2019-12-19 | 2021-02-12 | 先健科技(深圳)有限公司 | Heart valve |
| CN213156729U (en) * | 2020-06-01 | 2021-05-11 | 宁波健世生物科技有限公司 | Novel valve prosthesis with adjustable fixing end |
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| CN113648109A (en) | 2021-11-16 |
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