CN114305806A - Valve support, valve prosthesis and component for implanting valve prosthesis - Google Patents
Valve support, valve prosthesis and component for implanting valve prosthesis Download PDFInfo
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- CN114305806A CN114305806A CN202210039383.8A CN202210039383A CN114305806A CN 114305806 A CN114305806 A CN 114305806A CN 202210039383 A CN202210039383 A CN 202210039383A CN 114305806 A CN114305806 A CN 114305806A
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Abstract
The invention relates to the technical field of medical equipment, in particular to a valve stent and a valve prosthesis, wherein the valve stent comprises: comprises a crown body for fixing the valve skirt cloth, a plurality of supporting bodies which are connected with the crown body and are spaced from each other, and a positioning body which is arranged between the adjacent supporting bodies; a through channel for blood circulation is formed among the plurality of supporting bodies, and the tail end of at least one supporting body is bent to the through channel.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a valve stent, a valve prosthesis and a component for implanting the valve prosthesis.
Background
The heart system includes a left atrium and a left ventricle with a mitral valve therebetween that opens and closes with the heart beat, and in the open state of the mitral valve, blood flows through the left atrium to the left ventricle. Once the mitral valve is abnormal or diseased, the left ventricle cannot be completely closed when contracting, blood of the left ventricle flows back to the left atrium, the medicine is called mitral regurgitation, the mitral regurgitation easily causes pathological changes of the heart, and causes symptoms of labored breathing difficulty, hypodynamia, hypomotility and the like, if the regurgitation is serious, surgical treatment such as mitral valve repair or mitral valve replacement operation is required. In valve replacement surgery, a valve prosthesis is added to the malfunctioning mitral valve and works in place of the native mitral valve of the body to treat or ameliorate regurgitation caused by the native mitral valve lesion. Currently, mitral valve replacement medical technology and valve prosthesis are in the early exploration stage, so there is a need for development and continuous improvement of valve prosthesis.
Disclosure of Invention
Based on the above drawbacks, the present application discloses a valve stent and a valve prosthesis, in particular.
In one aspect, the present application provides a valve stent, wherein: comprises a crown body for fixing the valve skirt cloth, a plurality of supporting bodies which are connected with the crown body and are spaced from each other, and a positioning body which is arranged between the adjacent supporting bodies; a through channel for blood circulation is formed among the plurality of supporting bodies, and the tail end of at least one supporting body is bent to the through channel.
Preferably, the valve stent described above, wherein: the positioning body is provided with an opening end part and a closing end part; the opening end part of the positioning body is fixedly connected with the supporting body, and the closing end part of the positioning body extends towards the direction far away from the through channel.
Preferably, the valve stent described above, wherein: the crown body comprises a first crown split body and a second crown split body, the first crown split body and the second crown split body are respectively provided with an opening end part and a closed end part, the closed end parts of the second crown split body and the closed end parts of the first crown split body are arranged at intervals along the circumference, and the closed end parts extend towards the direction far away from the through passage.
Preferably, the valve stent described above, wherein: the crown body comprises a third crown split body, the third crown split body is provided with an opening end, the opening end of the third crown split body is fixedly connected with the supporting body, and the third crown split body is arranged at the downstream of the first crown split body.
Preferably, the valve stent described above, wherein: the distal end portion of at least one of the support bodies is provided with a fixing hole for fixing the valve.
Preferably, the valve stent described above, wherein: the valve support is a single-layer support, and an inner-layer support used for fixing the valve structure is not arranged in the through channel.
Preferably, the valve stent described above, wherein: the supporter is six, and the end of each supporter all bends to the through channel.
In another aspect, the present application further provides a valve stent, wherein: the valve skirt comprises a crown body for fixing the valve skirt, a plurality of supporting bodies connected with the crown body and arranged at intervals, and a positioning body arranged between the adjacent supporting bodies; and a through channel for blood circulation is formed among the plurality of supporting bodies, and the upstream channel of the through channel is larger than the downstream channel.
Preferably, the valve stent described above, wherein: the positioning body is provided with an opening end part and a closing end part; the opening end part of the positioning body is fixedly connected with the supporting body, and the closing end part of the positioning body extends towards the direction far away from the through channel.
Preferably, the valve stent described above, wherein: the crown body comprises a first crown split body and a second crown split body, the first crown split body and the second crown split body are respectively provided with an opening end part and a closed end part, the closed end parts of the second crown split body and the closed end parts of the first crown split body are arranged at intervals along the circumference, and the closed end parts extend towards the direction far away from the through passage.
Preferably, the valve stent described above, wherein: the crown body comprises a third crown split body, the third crown split body is provided with an opening end, the opening end of the third crown split body is fixedly connected with the supporting body, and the third crown split body is arranged at the downstream of the first crown split body.
Preferably, the valve stent described above, wherein: the distal end portion of at least one of the support bodies is provided with a fixing hole for fixing the valve.
Preferably, the valve stent described above, wherein: the valve support is a single-layer support, and an inner-layer support used for fixing the valve structure is not arranged in the through channel.
In another aspect, the present application further provides a valve prosthesis, including a valve stent of any one of the above aspects, further including:
a skirt fixedly disposed along the valve stent to cover at least a portion of the valve stent,
a valve structure disposed on the skirt within the through passage.
Preferably, the valve prosthesis is a single-layer stent, and the valve structure is connected to the single-layer stent through the skirt.
Preferably, the valve prosthesis comprises the valve prosthesis of any one of the above items, and further comprises a delivery unit for accommodating the valve prosthesis and delivering the valve prosthesis between the atrium and the ventricle in a compressed state of the valve prosthesis.
Compared with the prior art, the invention has the beneficial effects that at least:
1. when oxygenated blood flows from the left ventricle to the aorta, a blood flow stream is typically formed; when the valve stent is implanted in the heart, the support body with the bent end can be close to the blood flow stream side, and the interference of the blood flow stream can be reduced due to the fact that the end of the support body is bent towards the through channel. In other words, with proper implant installation, bending the support ends toward the valve stent through the passageway can reduce interference of oxygenated blood flow from the ventricle to the aortic blood flow. Further, when the tail end of each support body is bent towards the through channel, the specific support body of the valve support does not need to be considered to be close to the blood bundle channel, and the convenience of intervention installation is further improved.
2. A plurality of first coronary spiders are arranged on one valve support, the closed ends of the first coronary spiders contact with the atrium of the human body so that the valve support is fixed, and the valve support can overcome the extrusion force of the cardiac muscle and the fluid force exerted by the oxygenated blood and keep relatively static. The valve support is assisted to be positioned through the second coronary fission, on one hand, contact points of an upper end connecting portion of the valve support and an atrium are increased, and the valve support is prevented from offsetting in position, on the other hand, each contact point of the valve support is stressed in the atrium and the ventricle in a balanced manner, on the other hand, when the skirting cloth is arranged on the valve support, the skirting cloth is supported by the closed end portion of the second coronary fission and the closed end portion of the first coronary fission, so that a horn-shaped (or bowl-shaped) opening area is formed at the edge of the skirting cloth, and the horn-shaped opening area can be used for conveniently introducing oxygen-containing blood into the ventricle.
3. The closed ends of the first crown-shaped split body and the second crown-shaped split body are arc-shaped, so that the contact point of the crown-shaped body and the atrium is blunt, the upper connecting part is prevented from causing trauma to the atrium in the frequent contraction process of the atrium, and in addition, when the terylene cloth is sewn on the surface of the valve support, the contact area of the terylene cloth and the crown-shaped body is increased, so that the terylene cloth can be tightly fixed on the valve support.
4. The closed end of the positioning body is arc-shaped. The contact point of the positioning body and the ventricle is blunt, so that the end part of the positioning body is prevented from causing trauma points to the ventricle in the frequent contraction process of the ventricle, and in addition, when the terylene cloth is sewn on the surface of the valve support, the contact area of the terylene cloth and the positioning body is increased, so that the terylene cloth can be tightly fixed on the valve support.
5. The end parts of the third type coronary fission bodies are fixedly connected with the supporting body, the valve support is positioned by the aid of the third type coronary fission bodies, on one hand, contact points of the valve support and an atrium are increased, the valve support is prevented from being deviated in position, on the other hand, each contact point of the valve support is stressed in the atrium and the ventricle in a balanced manner, and the valve support is further supported and positioned.
6. The upstream channel of the through channel is larger than the downstream channel, the area of the downstream channel of the valve support is relatively reduced, and the opening and closing area of the valve is reduced in the contraction and relaxation process of the heart chamber, so that the valve can be closed quickly.
7. Because the support body forms a through passage with an upstream passage larger than a downstream passage, the size of the valve stent in the left ventricle can be reduced, and the interference of oxygen-containing blood flow from the ventricle to the aortic blood flow can be reduced.
Drawings
Fig. 1 is a schematic structural diagram of a valve stent according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a valve stent according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a valve stent according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a valve stent according to an embodiment of the present invention.
Detailed description of the preferred embodiments
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
A valve stent, wherein: comprises a crown body for fixing the valve skirt cloth, a plurality of supporting bodies which are connected with the crown body and are spaced from each other, and a positioning body which is arranged between the adjacent supporting bodies; a through channel for blood circulation is formed among the plurality of supporting bodies, and the tail end of at least one supporting body bends to the through channel. The longitudinal height of the valve support is reduced in the state of the same length of the valve support due to the fact that at least one of the support bodies is bent to the through channel at the tail end of the support body. Because the length of the support body is not changed, the support force provided by the support body to the valve leaflets and the valve skirt is kept unchanged, in the application process, the valve prosthesis formed based on the valve support is placed between an atrium and a ventricle, the atrium is positioned at the bottom of the atrium, and the support body is partially positioned in the ventricle. The longitudinal height of the support body of the valve support is relatively reduced, in a ventricular contraction state, a through channel in the valve prosthesis is closed, the oxygen-containing blood flow is extruded into the aorta above the right front of the ventricle, the oxygen-containing blood flow flows upwards from the ventricle into the aorta, and in the flowing process, the contact area between the oxygen-containing blood flow and the support body of the valve prosthesis is relatively reduced, so that the interference of the oxygen-containing blood flow from the ventricle to the aorta is reduced. On the other hand, as the support body of the valve support is bent towards the through channel, the annular area formed by the tail end of the support body of the valve support is reduced, and the opening and closing area of the valve is reduced in the contraction and relaxation processes of the ventricle, which is beneficial to the rapid closing of the valve.
Schematically, as shown in fig. 1 to 4, a valve stent, wherein: comprises a crown body 1 for fixing valve skirt cloth, a plurality of supporting bodies 12 which are connected with the crown body 1 and are spaced from each other, and a positioning body 2 which is arranged between the adjacent supporting bodies 12; a through channel 13 for allowing blood to flow is formed between the plurality of supporting bodies 12, and the tail end of at least one supporting body 12 is bent to the through channel 13. Further, the number of the supporting bodies 12 is six, and the end of each supporting body 12 is bent toward the through channel. When the ends of the support body 12 are all bent towards the through passage, the overall longitudinal height is reduced, further reducing the disturbance of the flow of oxygenated blood from the ventricle to the aorta.
Further, the open end of the positioning body 2 is fixedly connected to the supporting body 12, and the closed end 21 of the positioning body 2 extends away from the through channel 13. In use, the closed end 21 of the positioning body 2 is pressed against the heart tissue to position the valve support, the upper side of the crown 1 being situated on the annulus of the human body, through which the atrium is in communication with the ventricle.
Further, the crown body 1 comprises a first crown part 11 and a second crown part 14, the first crown part 11 and the second crown part 14 respectively have an open end and a closed end, the closed ends 141 of the second crown part 14 and the closed ends 111 of the first crown part 11 are connected with each other along the circumference at intervals, and the closed ends extend in the direction away from the through channel 13.
The closed end 111 of the first crown-shaped split body 11, the closed end 141 of the second crown-shaped split body 14 and/or the closed end 21 of the positioning body 2 are/is arc-shaped.
Wherein the first crown type sub-body and the second crown type sub-body can be formed by any one of plastic expanding materials or self-expanding materials known in the field. The valve stent is formed by cutting any one of plastic expanding materials or self-expanding materials (such as nickel-titanium alloy) through laser.
Further, the first crown body part 11 and the supporting body 12 may be integrally formed. For example, the blade-shaped support is integrally formed, the tip part of the blade-shaped support is a first crown-shaped split body, and the blade edge part of the blade-shaped support is a support body. Further, the distal end portion of at least one of the supports 12 is provided with a fixing hole 121 for fixing the valve.
A plurality of first coronary fission bodies are arranged on a valve support, the closed ends of the first coronary fission bodies form a crown, and the first coronary fission bodies are positioned above the valve ring at the bottom of the atrium of the human body so that the valve support is fixed. Displacement of the valve stent during myocardial motion is avoided.
Further, the valve stent is a single-layer stent, and the through channel is not provided with an inner-layer stent for fixing the valve structure. Based on the double-layer valve support that appears among the prior art, outer support is used for with the heart tissue is fixed promptly, and the valve structure is fixed to the inlayer support, and the valve support that forms final form is installed and is positioned on outer support to the inlayer support, and the valve support that this application provided is the condition that the individual layer and terminal inwards shrink, adopts this kind of valve support, and its simple structure, percutaneous implantation human body in the in-service use process, and it is simple relatively for double-layer structure valve support's its implantation process.
It should be noted that the valve stent of the present application can be applied between the left atrium and the left ventricle, and the valve stent is subjected to the squeezing force of the myocardium on one hand and the fluid force exerted by the oxygenated blood on the other hand. The provision of a plurality of coronary segments of the first type is intended to enable the valve stent to remain stationary against the squeezing forces of the heart muscle, the fluid forces exerted by oxygenated blood. Maintaining the relative positioning of the valve support is essential because, upon displacement of the valve support, there is a possibility of gaps between the valve support prosthesis and the atria and ventricles through which the oxygenated blood may cause regurgitation during ventricular contraction.
The second crown-shaped split body 14 is arranged between the adjacent first crown-shaped split bodies, and the end part of the second crown-shaped split body 14 extends along the circumference. The valve support is assisted to be positioned through the second coronary fission 14, on one hand, contact points of an upper end connecting portion of the valve support and an atrium are increased, the valve support is prevented from being deviated in position, on the other hand, stress of each contact point of the valve support in the atrium and the ventricle is balanced, on the other hand, when the skirts are arranged on the valve support, the skirts are supported by the closed end portions of the second coronary fission 14 and the first coronary fission 11, a horn-shaped (or bowl-shaped) opening area is formed in the edge of the skirts, and oxygen-containing blood can be conveniently introduced into the ventricle through the horn-shaped opening area.
The closed ends of the first crown-shaped split body and the second crown-shaped split body are arc-shaped, so that the contact point of the crown-shaped body and the atrium is blunt, the upper connecting part is prevented from causing trauma to the atrium in the frequent contraction process of the atrium, and in addition, when the terylene cloth is sewn on the surface of the valve support, the contact area of the terylene cloth and the crown-shaped body is increased, so that the terylene cloth can be tightly fixed on the valve support.
The closed end of the positioning body is arc-shaped. Because the cardiac muscle of the left ventricle is thick, oxygen-containing blood can be pumped into the main artery to enter the whole body in the movement process of the left ventricle, then the extrusion force generated by the cardiac muscle of the left ventricle is relatively large, so that the contact point of the positioning body and the cardiac ventricle is blunt, the end part of the positioning body is prevented from causing trauma points to the cardiac ventricle in the frequent contraction process of the cardiac ventricle, and in addition, when the terylene cloth is sewn on the surface of the valve support, the contact area of the terylene cloth and the positioning body is increased, so that the terylene cloth can be tightly fixed on the valve support.
On the basis of the technical scheme, the cross-sectional area of the inflow end of the through channel of the valve support is larger than that of the outflow end of the through channel of the valve support, so that the stability of the valve support is further guaranteed, and each contact point of the valve support is stressed in an atrium and a ventricle in a balanced manner.
Example two
The present invention further provides a valve stent, wherein: the valve skirt comprises a crown body for fixing the valve skirt, a plurality of supporting bodies connected with the crown body and arranged at intervals, and a positioning body arranged between the adjacent supporting bodies; and a through channel for blood circulation is formed among the plurality of supporting bodies, and the upstream channel of the through channel is larger than the downstream channel.
Because the upstream channel of the through channel is larger than the downstream channel, the area of the downstream channel of the valve support is relatively reduced, and the opening and closing area of the valve is reduced in the contraction and relaxation process of the heart chamber, which is beneficial to the rapid closing of the valve.
As a further preferred embodiment, the valve stent described above, wherein: the positioning body is provided with an opening end part and a closing end part; the opening end part of the positioning body is fixedly connected with the supporting body, and the closing end part of the positioning body extends towards the direction far away from the through channel.
As a further preferred embodiment, the valve stent described above, wherein: the crown body comprises a first crown split body and a second crown split body, the first crown split body and the second crown split body are respectively provided with an opening end part and a closed end part, and the closed end parts of the second crown split body and the closed end parts of the first crown split body are arranged and connected adjacently along the circumference and extend towards the direction far away from the through channel.
As a further preferred embodiment, the valve stent described above, wherein: the closed end part of the first crown-shaped split body, the closed end part of the second crown-shaped split body and/or the closed end part of the positioning body are in arc shapes.
As a further preferred embodiment, the valve stent described above, wherein: the crown body also comprises a third crown split body, the third crown split body is provided with an opening end part, the opening end part of the third crown split body is fixedly connected with the supporting body, and the third crown split body is arranged at the downstream of the first crown split body.
As a further preferred embodiment, the valve stent described above, wherein: the distal end portion of at least one of the support bodies is provided with a fixing hole for fixing the valve.
As a further preferred embodiment, the valve stent described above, wherein: the valve support is a single-layer support, and an inner-layer support used for fixing the valve structure is not arranged in the through channel.
The working principle of the valve stent provided by the second embodiment is the same as that of the valve stent provided by the first embodiment, and the details are not repeated here.
EXAMPLE III
A valvular prosthesis comprising a valvular stent of any of the above embodiments, further comprising:
the valve support comprises a skirt fabric, wherein the skirt fabric is fixedly arranged along the valve support to cover the valve support, and further can be made of polyester fabric or other medical fabrics, so that the valve support is covered by the skirt fabric to form a complete through channel.
The valve structure is arranged on the skirt cloth in the through channel, and further can be further fixed through a fixing hole arranged at the tail end part of the support body. The valve structure is switched between a relaxed state and a contracted state, the valve structure in the contracted state covers the through channel of the valve support so as to block the reverse flow of the oxygenated blood, the valve structure in the relaxed state is opened so as to enable the through channel of the valve support to work in a conducting state, and the oxygenated blood flows from the atrium to the ventricle and is pressed into the aorta by the ventricle.
Because the support tail end of the valve support is bent towards the through channel, the annular area formed by the support tail end of the valve support is reduced, the opening and closing area of the valve is reduced in the contraction and relaxation process of the heart chamber, the valve is closed, and the valve can be closed even if a patient with weak heart contraction capacity is suffered from extrusion force generated by the heart chamber. On the other hand, because the extension part (support body) of the valve support is relatively reduced, the skirt is covered on the support body, in the heart chamber contraction state, the oxygenated blood flow is extruded into the aorta above the right front of the heart chamber, the oxygenated blood flows upwards from the heart chamber into the aorta, in the oxygenated blood flow process, the skirt and the support body are blocked, and the tail end of the support body bends to the through channel, so that the blocking is reduced, and the interference of the oxygenated blood flowing from the heart chamber to the aorta is reduced.
As a further preferred embodiment, the above valve prosthesis, wherein the valve stent comprises six said supports, and said supports are evenly distributed.
In a further preferred embodiment, the valve prosthesis is a single-layer stent, and the valve structure is connected to the single-layer stent through the skirt. The valve stent has simple structure, is implanted into a human body through the skin in the actual use process, and is relatively simple compared with the implantation process of the valve stent with the double-layer structure.
Example four
An assembly for implanting a valve prosthesis, comprising a valve prosthesis as claimed in any preceding claim, further comprising a delivery unit for receiving the valve prosthesis in its compressed state and delivering the valve prosthesis between the atrium and the ventricle.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (16)
1. A valve stent characterized by: comprises a crown body for fixing the valve skirt cloth, a plurality of supporting bodies which are connected with the crown body and are spaced from each other, and a positioning body which is arranged between the adjacent supporting bodies; a through channel for blood circulation is formed among the plurality of supporting bodies, and the tail end of at least one supporting body is bent to the through channel.
2. A valve stent according to claim 1, wherein: the positioning body is provided with an opening end part and a closing end part; the opening end part of the positioning body is fixedly connected with the supporting body, and the closing end part of the positioning body extends towards the direction far away from the through channel.
3. A valve stent according to claim 1, wherein: the crown body comprises a first crown split body and a second crown split body, the first crown split body and the second crown split body are respectively provided with an opening end part and a closed end part, the closed end parts of the second crown split body and the closed end parts of the first crown split body are arranged at intervals along the circumference, and the closed end parts extend towards the direction far away from the through passage.
4. A valve stent according to claim 3, wherein: the crown body comprises a third crown split body, the third crown split body is provided with an opening end, the opening end of the third crown split body is fixedly connected with the supporting body, and the third crown split body is arranged at the downstream of the first crown split body.
5. A valve stent according to claim 1, wherein: the distal end portion of at least one of the support bodies is provided with a fixing hole for fixing the valve.
6. A valve stent according to claim 1, wherein: the valve support is a single-layer support, and an inner-layer support used for fixing the valve structure is not arranged in the through channel.
7. A valve stent according to any one of claims 1 to 6, wherein: the supporter is six, and the end of each supporter all bends to the through channel.
8. A valve stent characterized by: the valve skirt comprises a crown body for fixing the valve skirt, a plurality of supporting bodies connected with the crown body and arranged at intervals, and a positioning body arranged between the adjacent supporting bodies; and a through channel for blood circulation is formed among the plurality of supporting bodies, and the upstream channel of the through channel is larger than the downstream channel.
9. The valve stent of claim 8, wherein: the positioning body is provided with an opening end part and a closing end part; the opening end part of the positioning body is fixedly connected with the supporting body, and the closing end part of the positioning body extends towards the direction far away from the through channel.
10. The valve stent of claim 8, wherein: the crown body comprises a first crown split body and a second crown split body, the first crown split body and the second crown split body are respectively provided with an opening end part and a closed end part, the closed end parts of the second crown split body and the closed end parts of the first crown split body are arranged at intervals along the circumference, and the closed end parts extend towards the direction far away from the through passage.
11. A valve stent according to claim 10, wherein: the crown body comprises a third crown split body, the third crown split body is provided with an opening end, the opening end of the third crown split body is fixedly connected with the supporting body, and the third crown split body is arranged at the downstream of the first crown split body.
12. The valve stent of claim 8, wherein: the distal end portion of at least one of the support bodies is provided with a fixing hole for fixing the valve.
13. The valve stent of claim 8, wherein: the valve support is a single-layer support, and an inner-layer support used for fixing the valve structure is not arranged in the through channel.
14. A valvular prosthesis comprising a valvular stent as claimed in any one of claims 1 to 13, further comprising:
the skirt cloth is fixedly arranged on the valve support,
a valve structure connected with the skirt within the through passage.
15. The valve prosthesis of claim 14, wherein the valve stent is a single-layered stent to which the valve structure is attached by the skirt.
16. An assembly for implanting a valve prosthesis, comprising a valve prosthesis according to claim 14 or 15, and further comprising a delivery unit for receiving the valve prosthesis in a compressed state of the valve prosthesis and delivering the valve prosthesis between the atrium and the ventricle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210039383.8A CN114305806A (en) | 2022-01-13 | 2022-01-13 | Valve support, valve prosthesis and component for implanting valve prosthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210039383.8A CN114305806A (en) | 2022-01-13 | 2022-01-13 | Valve support, valve prosthesis and component for implanting valve prosthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114305806A true CN114305806A (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210039383.8A Pending CN114305806A (en) | 2022-01-13 | 2022-01-13 | Valve support, valve prosthesis and component for implanting valve prosthesis |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140277411A1 (en) * | 2011-09-12 | 2014-09-18 | Highlife Sas | Transcatheter valve prosthesis |
| CN104771247A (en) * | 2014-01-15 | 2015-07-15 | 赛诺医疗科学技术有限公司 | Device and method for mitral valve regurgitation treatment |
| CN107427364A (en) * | 2014-12-19 | 2017-12-01 | 杭州启明医疗器械有限公司 | Minimally invasive mitral valve displacement with edge |
| 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 |
| CN216933624U (en) * | 2022-01-13 | 2022-07-12 | 上海以心医疗器械有限公司 | Valve support, valve prosthesis and component for implanting valve prosthesis |
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2022
- 2022-01-13 CN CN202210039383.8A patent/CN114305806A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140277411A1 (en) * | 2011-09-12 | 2014-09-18 | Highlife Sas | Transcatheter valve prosthesis |
| CN104771247A (en) * | 2014-01-15 | 2015-07-15 | 赛诺医疗科学技术有限公司 | Device and method for mitral valve regurgitation treatment |
| CN107427364A (en) * | 2014-12-19 | 2017-12-01 | 杭州启明医疗器械有限公司 | Minimally invasive mitral valve displacement with edge |
| 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 |
| CN216933624U (en) * | 2022-01-13 | 2022-07-12 | 上海以心医疗器械有限公司 | Valve support, valve prosthesis and component for implanting valve prosthesis |
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