CN112773564A - Heart valve - Google Patents
Heart valve Download PDFInfo
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- CN112773564A CN112773564A CN202110102840.9A CN202110102840A CN112773564A CN 112773564 A CN112773564 A CN 112773564A CN 202110102840 A CN202110102840 A CN 202110102840A CN 112773564 A CN112773564 A CN 112773564A
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- valve
- leaflet
- frame
- skirt
- outer skirt
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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
- A61F2/2418—Scaffolds therefor, e.g. support stents
Abstract
The invention provides a heart valve, which relates to the field of medical instruments and comprises valve leaflets, a valve frame, an inner skirt and an outer skirt; the inner skirt is abutted against the inner wall of the valve frame, and the first end of the inner skirt is sewn with the first end of the valve frame; the valve leaflets are arranged in the outer skirt, and the first ends of the valve leaflets, the first ends of the outer skirt and the second end of the inner skirt are sewn with the second end of the valve frame; the second end of the valve leaf is turned inwards, and the second end of the valve leaf is sewn and arranged inside the valve frame; the second end of the outer skirt is turned outwards, and the second end of the outer skirt is sewn and arranged outside the valve frame. The invention can improve the medical effect of the heart valve.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a heart valve.
Background
The heart valve prosthesis mainly fixes the pericardial tissue on the stent by means of sewing and the like, and then simulates the native valve of a human body through the structural form of two-leaf or three-leaf blades formed by the pericardial tissue in the center of the stent, and the heart valve prosthesis is implanted to the position of the native valve to replace the original diseased valve. The current common heart valve has the suture line exposed leakage on the blood flushing surface, and the blood contacts with the suture line, so that the disease risk of thrombus can occur. It can be seen that the prior art heart valves have a greater probability of thrombus formation.
Disclosure of Invention
The embodiment of the invention provides a heart valve, which aims to solve the problem that the probability of forming thrombus is high.
In a first aspect, embodiments of the present invention provide a heart valve, including a leaflet, a valve frame, an inner skirt, and an outer skirt;
the inner skirt is abutted against the inner wall of the valve frame, and the first end of the inner skirt is sewn with the first end of the valve frame;
the valve leaflets are arranged in the outer skirt, and the first ends of the valve leaflets, the first ends of the outer skirt and the second end of the inner skirt are sewn with the second end of the valve frame;
the second end of the valve leaf is turned inwards, and the second end of the valve leaf is arranged inside the valve frame in a sewing mode;
the second end of the outer skirt is turned outwards, and the second end of the outer skirt is arranged outside the valve frame in a sewn mode.
Optionally, the first end of the valve leaflet is a triangular sawtooth matched with the unit lattice of the valve frame;
the second end of the inner skirt is provided with triangular saw teeth matched with the unit lattices of the petal frame;
the first end of the outer skirt is provided with triangular saw teeth matched with the unit cells of the petal frame;
the triangular sawtooth structure of the first end of the valve leaflet coincides with the triangular sawtooth structure of the first end of the outer skirt and is in butt joint with the triangular sawtooth structure of the sawtooth of the second end of the inner skirt.
Optionally, the leaflet comprises a first aliquot, a second aliquot, and a third aliquot, wherein the first aliquot is a suture region between a third end of the leaflet and a fourth end of the leaflet;
the valve leaf is sewed with the valve frame through the first equal part, the second equal part and the third equal part.
Optionally, the leaflet further includes a first overlapping section, the first overlapping section is sewn to the first equal part of the leaflet, and the leaflet is sewn to the leaflet frame through the first overlapping section.
Optionally, the valve frame includes a first positioning beam, a second positioning beam, and a third positioning beam, and the valve leaflet further includes a second overlapping slice and a third overlapping slice;
the first positioning beam is sewn with a first equal-dividing part of the valve leaf through the first lap-jointed slice;
the second positioning beam is sewn with a second equally-divided part of the valve leaflet through the second lap-jointed slice;
the third positioning beam is sewed with the third equally-divided part of the valve leaflet through the third lapping section.
Optionally, the second end of the outer skirt covers at least one cell of the valve frame, and the height of the second end of the outer skirt is less than or equal to the height of the first end of the inner skirt.
Optionally, the material of the valve leaflet is a pericardial material.
Optionally, the inner skirt is made of a pericardium material.
Optionally, the material of the first lap-joint slice is a pericardium material;
the material of the second lap-joint slice is a pericardium material;
the material of the third lap-joint slice is a pericardium material.
Optionally, the material of the outer skirt is polyester fiber.
In the embodiment of the invention, the heart valve comprises valve leaflets, a valve frame, an inner skirt and an outer skirt, wherein the first end of the inner skirt and the first end of the valve frame are sewed together; the second end of the valve leaf is turned inwards, and the second end of the valve leaf is sewn and arranged inside the valve frame; the second end of the outer skirt is turned outwards, and the second end of the outer skirt is sewn and arranged outside the valve frame. Through the suture arrangement of the second end inversion of the valve leaves and the valve frame, the blood flow flushing surface is not exposed by the suture, so that the probability of forming thrombus can be reduced, and the medical effect of the heart valve can be improved.
Drawings
FIG. 1 is one of the block diagrams of a heart valve provided by embodiments of the present invention;
FIG. 2 is a second block diagram of a heart valve according to an embodiment of the present invention;
fig. 3 is one of the structural views of a leaflet according to an embodiment of the present invention;
FIG. 4 is a third block diagram of another heart valve provided in accordance with embodiments of the present invention;
FIG. 5 is a fourth illustration of a block diagram of another heart valve provided in accordance with an embodiment of the present invention;
FIG. 6 is a fifth block diagram of another heart valve provided in accordance with embodiments of the present invention;
FIG. 7 is a sixth block diagram of another heart valve provided in accordance with embodiments of the present invention;
FIG. 8 is a seventh aspect of a block diagram of another heart valve provided in accordance with embodiments of the present invention;
FIG. 9 is an eighth block diagram of an alternative heart valve according to embodiments of the present invention;
figure 10 is a second structural view of a leaflet according to an embodiment of the present invention;
FIG. 11 is a block diagram of an inner skirt according to an embodiment of the present invention;
FIG. 12 is a block diagram of an outer skirt according to an embodiment of the present invention;
fig. 13 is a third structural view of a leaflet according to an embodiment of the present invention;
FIG. 14 is a ninth illustration of a block diagram of a heart valve provided by an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used are interchangeable under appropriate circumstances such that embodiments of the application can be practiced in sequences other than those illustrated or described herein, and the terms "first" and "second" used herein generally do not denote any order, nor do they denote any order, for example, the first object may be one or more.
Referring to fig. 1, fig. 1 is a structural diagram of a heart valve according to an embodiment of the present invention, and as shown in fig. 1, a heart valve includes a leaflet 1, a valve frame 2, an inner skirt 3, and an outer skirt 4;
the inner skirt 3 is abutted against the inner wall of the valve frame 2, and the first end of the inner skirt 3 is sewn with the first end of the valve frame 2;
the valve leaflet 1 is arranged in the outer skirt 4, and a first end of the valve leaflet 1, a first end of the outer skirt 4 and a second end of the inner skirt 3 are sewed with a second end of the valve frame 2;
the second end of the valve leaf 1 is turned inwards, and the second end of the valve leaf 1 is sewed and arranged inside the valve frame 2;
the second end of the outer skirt 4 is turned outwards, and the second end of the outer skirt 4 is sewed and arranged outside the valve frame 2.
The heart valve prevents the backflow of blood mainly by closing the valve leaflets 1, and allows the blood to smoothly pass through the valve leaflets 1 by opening. The valve frame 2 is a support system of the valve leaflet 1, and the valve leaflet 1 can be sewed and arranged inside the valve frame 2. The inner skirt 3 and the outer skirt 4 are mainly used for preventing the side leakage of blood in the state where the leaflet 1 is open.
The inner skirt 3 is arranged to be cylindrical through sewing, as shown in fig. 2, the first end of the inner skirt 3 and the first end of the valve frame 2 are sewn, the inner skirt 3 is attached to the inner wall of the valve frame 2, the first end of the inner skirt 3 is sewn and fixed to the first end of the valve frame 2, and the sewing path of the first end of the inner skirt 3 and the first end of the valve frame 2 is shown in fig. 3.
As shown in fig. 4, the leaflet 1, which is tubular after suturing, is turned inside out, the suture at the second end of the leaflet 1 is turned outside, and no suture is present on the inner wall of the leaflet 1. As shown in fig. 5, the leaflet 1 is disposed in the outer skirt 4, the first end of the leaflet 1 is aligned with the first end of the outer skirt 4, and then is abutted against the second end of the inner skirt 3, and then each needle sewing thread is sewn to the valve frame 2 through the second end of the inner skirt 3, the first end of the leaflet 1 and the first end of the outer skirt 4, and the sewing path of the first end of the leaflet 1, the first end of the outer skirt 4 and the second end of the inner skirt 3 and the second end of the valve frame 2 is shown in fig. 6.
As shown in fig. 7, the second end of the leaflet 1 is inverted and the second end of the leaflet 1 is sutured and disposed inside the valve frame 2. When the second end of the valve leaflet 1 is sewed and arranged inside the valve frame 2, the second end of the valve leaflet 1 and the valve frame 2 are completely sewed and arranged, so that the valve leaflet 1 cannot be closed, the side surface of three equal division points can be selected at the second end of the valve leaflet 1 to be sewed and arranged with the valve frame 2, and therefore when blood flows, no sewing thread is exposed on a blood flow brushing surface, and the risk of thrombosis can be reduced. In addition, the suture position between the second end of the leaflet 1 and the frame 2 is higher than the suture position between the first end of the inner skirt 3 and the frame 2, and if the suture position between the first end of the inner skirt 3 and the frame 2 is higher than the suture position between the second end of the leaflet 1 and the frame 2, the leaflet 1 may not close completely. As shown in fig. 8, the second end of the outer skirt 4 is turned outwards, and the second end of the outer skirt 4 is sewn to the outside of the valve frame 2.
As shown in fig. 9, the valve leaflet 1 is opened, blood flows from bottom to top through the outer skirt 4 and the valve leaflet 1 in sequence, and no suture is exposed on the blood flow scouring surface, so that the risk of thrombosis can be reduced. In addition, the inner skirt 3 and the outer skirt 4 can also prevent the side leakage of blood when the valve leaflet 1 is in an open state, wherein the inner skirt 3 is mainly used for preventing the side leakage of blood, and the outer skirt 4 can play an auxiliary role in preventing the side leakage of blood.
In the embodiment of the invention, the heart valve comprises a valve leaflet 1, a valve frame 2, an inner skirt 3 and an outer skirt 4, wherein the first end of the inner skirt 3 and the first end of the valve frame 2 are sewed together, the valve leaflet 1 is arranged in the outer skirt 4, and the first end of the valve leaflet 1, the first end of the outer skirt 4 and the second end of the inner skirt 3 are sewed together with the second end of the valve frame 2; the second end of the valve leaf 1 is turned inwards, and the second end of the valve leaf 1 is sewn and arranged inside the valve frame 2; the second end of the outer skirt 4 is turned outwards, and the second end of the outer skirt 4 is sewed and arranged outside the valve frame 2. Through the suture arrangement of the second end inversion of the valve leaf 1 and the valve frame 2, no suture line is exposed on the blood flow flushing surface, so that the risk of thrombosis can be reduced, and the medical effect of the heart valve can be improved.
As an alternative embodiment, the first end of the valve leaflet 1 is a triangular sawtooth which is matched with the unit cell of the valve frame 2;
the second end of the inner skirt 3 is provided with triangular saw teeth matched with the unit cells of the petal frame 2;
the first end of the outer skirt 4 is provided with triangular saw teeth matched with the unit cells of the petal frame 2;
the triangular sawtooth structure of the first end of the valve leaflet 1 is superposed with the triangular sawtooth structure of the first end of the outer skirt 4 and is in butt joint with the triangular sawtooth structure of the sawtooth of the second end of the inner skirt 3.
As shown in fig. 10, the first end of the leaflet 1 is triangular serrations whose size and shape are adapted to the size and shape of the apex angle of the unit cell of the leaflet frame 2 for easy suturing, the unit cell of the leaflet frame 2 is a rhombic unit cell, and the upper apex angle and the lower apex angle are the same in shape and size, that is, the number and size of the serrations of the triangular serrations of the first end of the leaflet 1 depend on the structure of the leaflet frame 2, and the triangular serrations may partially coincide with the triangle of the lower apex angle of the rhombic unit cell of the leaflet frame 2. The leaflet 1 is sewn in a tubular shape by: the square valve leaflet 1 can be folded firstly, the edges of the third end and the fourth end of the valve leaflet 1 are overlapped, furthermore, the edges of the third end and the fourth end are sewed together, then the edges of the third end and the fourth end are sewed together at the second end of the valve leaflet 1 without a triangular sawtooth structure, and the square valve leaflet 1 is sewed into a cylinder shape.
As shown in fig. 11, the second end of the inner skirt 3 is a triangular sawtooth adapted to the cell of the petal frame 2, that is, the number and size of the triangular sawtooth at the second end of the inner skirt 3 depend on the structure of the petal frame 2, and the triangular sawtooth part can coincide with the triangle at the lower vertex angle of the rhombic cell of the petal frame 2. In addition, the first end of the inner skirt 3 may also be a triangular sawtooth which is adapted to the cell of the petal frame 2.
As shown in fig. 12, the first end of the outer skirt 4 is a triangular sawtooth adapted to the cell of the petal frame 2, that is, the number and size of the triangular sawtooth at the first end of the outer skirt 4 depend on the structure of the petal frame 2, and the triangular sawtooth part can coincide with the triangle at the lower vertex angle of the rhombic cell of the petal frame 2.
The mode that the first end of leaflet 1, the first end of outer skirt 4 and the second end of inner skirt 3 and the second end of valve frame 2 are sewed up does: the triangular saw teeth at the first end of the valve leaflet 1 are aligned with the triangular saw teeth at the first end of the outer skirt 4 and then are in butt joint with the triangular saw teeth at the second end of the inner skirt 3, the sewing tightness can be ensured, and then each needle penetrates through the triangular saw teeth of the inner skirt 3, the triangular saw teeth of the valve leaflet 1 and the triangular saw teeth of the outer skirt 4 to be sewn with the valve frame 2.
In this embodiment, because the first end of leaflet is the triangle-shaped sawtooth with the cell adaptation of petal frame, and interior skirt second end is the triangle-shaped sawtooth with the cell adaptation of petal frame, the first end of outer skirt be with the triangle-shaped sawtooth of the cell adaptation of petal frame, because the triangle-shaped sawtooth is adapted with the cell of petal frame to can improve the convenience of sewing up.
Optionally, the leaflet 1 comprises a first aliquot, a second aliquot and a third aliquot, wherein the first aliquot is a suture region between a third end of the leaflet 1 and a fourth end of the leaflet 1;
the valve leaflet 1 is sewed with the valve frame 2 through the first equal part, the second equal part and the third equal part.
The cylindrical leaflet 1 can be divided into three equal parts, and each part is an equal part in the area where the second end of the leaflet 1 is intersected, so that the leaflet 1 comprises a first equal part, a second equal part and a third equal part, wherein the suturing area between the third end of the leaflet 1 and the fourth end of the leaflet 1 is the first equal part, one suturing area can be reduced, and the suturing efficiency is improved.
The leaflet 1 is sutured to the valve frame 2 at the first, second, and third equal parts. The second end of the valve leaf 1 is sewed with the valve frame 2 through the equant part, so that the opening and closing state of the valve leaf can be improved.
In this embodiment, since the leaflet includes the first, second, and third equal parts, the first equal part is a suture region of the third end of the leaflet and the fourth end of the leaflet, which can improve the efficiency of the suture, and the leaflet is sutured to the valve frame through the first, second, and third equal parts, which can improve the open and closed states of the leaflet, thereby improving the medical effect of the heart valve.
Optionally, the leaflet 1 further includes a first overlapping section, the first overlapping section is sewn to the first equal part of the leaflet 1, and the leaflet 1 is sewn to the leaflet frame 2 through the first overlapping section.
As shown in fig. 13, when the leaflet 1 is sutured into a tubular leaflet, a first lap-cut piece may be added to the sutured area, and the first lap-cut piece may be sutured at the interface with the tubular leaflet 1. In addition, the valve leaflet 1 can be sutured with the valve frame 2 through the first overlapping section. The overlapped slices are strip slices which are long and thin, can share the pulling force of the thin line at the sewing position, and improve the stability of the sewing position.
In this embodiment, because the leaflet still includes first overlap joint section, first overlap joint section and the first partition position suture setting of leaflet, the setting is sewed up through first overlap joint section and valve frame to the leaflet, and the pull force of suture department fine rule can be shared to the overlap joint section, improves the stability of suture department to the medical treatment effect that can improve heart valve.
Optionally, the valve frame 2 includes a first positioning beam, a second positioning beam, and a third positioning beam, and the valve leaflet 1 further includes a second overlapping slice and a third overlapping slice;
the first positioning beam is sewn with the first equal-dividing part of the valve leaf 1 through the first lap joint slice;
the second positioning beam is sewn with a second equally-divided part of the valve leaflet 1 through the second lap joint slice;
the third positioning beam is sewed with the third equally-divided part of the valve leaflet 1 through the third lapping slice.
The leaflet 1 includes a first lapped slice, a second lapped slice, and a third lapped slice, and as shown in fig. 13, the first lapped slice is sewn to the first bisector of the leaflet 1, the second lapped slice is sewn to the second bisector of the leaflet 1, and the third lapped slice is sewn to the third bisector of the leaflet 1.
The first positioning beam, the second positioning beam and the third positioning beam of the valve frame 2 respectively correspond to the first equal part, the second equal part and the third equal part of the valve leaflet 1. The first locating beam is sewed up the setting through the first partition position of first overlap joint section and leaflet 1, and the setting is sewed up through the second partition position of second overlap joint section and leaflet 1 to the second locating beam, and the setting is sewed up through the third partition position of third overlap joint section and leaflet 1 to the third locating beam, and the second end of leaflet 1 is sewed up through overlap joint section and valve frame 2, can share the pulling force of sewing up the department fine rule, improves the stability of sewing up the department. The suture line passes through the second overlapping section of the valve leaflet 1 and the second bisection part of the valve leaflet 1, and then is wound for 5-10 circles around the second positioning beam of the valve frame 2 to be tightly knotted, as shown in fig. 14. When the valve leaflet 1 is opened and blood flows, the flushing force of the blood flow is larger on the second end of the valve leaflet 1 and the suturing area of the valve frame 2, the suturing of the second end of the valve leaflet 1 and the valve frame 2 can be stabilized through the suturing mode, and no suture line is exposed on the blood flow flushing surface.
In this embodiment, the valve frame 2 includes a first positioning beam, a second positioning beam, and a third positioning beam, the first positioning beam is sewn together with the first equal part of the valve leaflet 1 through the first overlapping section, the second positioning beam is sewn together with the second equal part of the valve leaflet 1 through the second overlapping section, the third positioning beam is sewn together with the third equal part of the valve leaflet 1 through the third overlapping section, the second end of the valve leaflet 1 is sewn together with the valve frame 2 through the first overlapping section, the second overlapping section, and the third overlapping section, so that the tension of the thin line at the sewing position can be shared, and the stability of the sewing position can be improved.
Optionally, the second end of the outer skirt 4 covers at least one cell of the valve frame 2, and the height of the second end of the outer skirt 4 is less than or equal to the height of the first end of the inner skirt 3.
If the height of the suture position of the second end of the outer skirt 4 and the valve frame 2 is too high, the blood circulation may be blocked. Therefore, the second end of the outer skirt 4 is turned outwards to cover at least one cell of the valve frame 2, and the height of the second end of the outer skirt 4 is less than or equal to the height of the first end of the inner skirt 3.
In this embodiment, because the second end of the outer skirt covers at least one unit cell of the valve frame, the height of the second end of the outer skirt is less than or equal to the height of the first end of the inner skirt, the blockage of blood circulation can be reduced, and the medical effect of the heart valve can be improved.
Optionally, the material of the valve leaflet 1 is a pericardial material.
The pericardium material mainly comprises a porcine pericardium and a bovine pericardium, wherein the porcine pericardium is a compact tissue wrapping a porcine heart, and the bovine pericardium is a compact tissue wrapping a bovine heart. The porcine pericardium tissue and the bovine pericardium tissue have high collagen content, are very compact and compact, and the heart valve made of the collagen has better tolerance to the pressure of the cardiac cycle and is less bent under bending stress. In addition, the hemodynamic performance of bovine pericardial valves is more excellent than that of porcine heart valves.
In this embodiment, since the material of the valve leaflet is a pericardial material, the heart valve made of the pericardial material has better tolerance to the pressure of the cardiac cycle, so that the medical effect of the heart valve can be improved.
Optionally, the material of the inner skirt 3 is a pericardial material.
The inner skirt 3 is mainly used for preventing side leakage of blood flow, the inner skirt 3 is made of a pericardium material, and the pericardium material has better tolerance to pressure of a cardiac cycle, so that the side leakage preventing effect of blood flow can be improved.
In this embodiment, the material of the inner skirt is a pericardial material, and the effect of preventing side leakage of blood flow can be improved.
Optionally, the material of the first lap-joint slice is a pericardium material;
the material of the second lap-joint slice is a pericardium material;
the material of the third lap-joint slice is a pericardium material.
Wherein, the overlap joint section mainly used stabilizes the sewing of leaflet 1 and valve frame 2, and first overlap joint section's material can be the pericardial material, and second overlap joint section's material can be the pericardial material, and third overlap joint section's material can be the pericardial material. Compared with other materials, the pericardium material is very compact and compact, and has better suture effect.
In the embodiment, the first overlapping section is made of a pericardium material, the second overlapping section is made of a pericardium material, and the third overlapping section is made of a pericardium material, so that the pericardium material is very compact and compact, the sewing effect is good, and the medical effect of the heart valve can be improved.
Optionally, the material of the outer skirt 4 is polyester fiber.
The polyester fiber is common, has good wrinkle resistance and shape retention, high strength and elastic recovery capability, and is firm and durable. The outer skirt is made of polyester fiber, is thin and can bear large tensile force.
In the embodiment, the outer skirt is made of polyester fiber, so that the outer skirt is thin and can bear large tensile force, and the medical effect of the heart valve can be improved.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A heart valve is characterized by comprising valve leaflets, a valve frame, an inner skirt and an outer skirt;
the inner skirt is abutted against the inner wall of the valve frame, and the first end of the inner skirt is sewn with the first end of the valve frame;
the valve leaflets are arranged in the outer skirt, and the first ends of the valve leaflets, the first ends of the outer skirt and the second end of the inner skirt are sewn with the second end of the valve frame;
the second end of the valve leaf is turned inwards, and the second end of the valve leaf is arranged inside the valve frame in a sewing mode;
the second end of the outer skirt is turned outwards, and the second end of the outer skirt is arranged outside the valve frame in a sewn mode.
2. The heart valve of claim 1, wherein the first end of the leaflet is a triangular serration that fits into a cell of the valve frame;
the second end of the inner skirt is provided with triangular saw teeth matched with the unit lattices of the petal frame;
the first end of the outer skirt is provided with triangular saw teeth matched with the unit cells of the petal frame;
the triangular sawtooth structure of the first end of the valve leaflet coincides with the triangular sawtooth structure of the first end of the outer skirt and is in butt joint with the triangular sawtooth structure of the sawtooth of the second end of the inner skirt.
3. The heart valve of claim 1, wherein the leaflet includes a first aliquot, a second aliquot, and a third aliquot, wherein the first aliquot is a suture region of a third end of the leaflet and a fourth end of the leaflet;
the valve leaf is sewed with the valve frame through the first equal part, the second equal part and the third equal part.
4. The heart valve of claim 3, wherein the leaflet further comprises a first lap-section that is sutured to a first aliquot of the leaflet, the leaflet being sutured to the frame via the first lap-section.
5. The heart valve of claim 4, wherein the valve frame includes a first positioning beam, a second positioning beam, and a third positioning beam, the leaflet further including a second lap slice and a third lap slice;
the first positioning beam is sewn with a first equal-dividing part of the valve leaf through the first lap-jointed slice;
the second positioning beam is sewn with a second equally-divided part of the valve leaflet through the second lap-jointed slice;
the third positioning beam is sewed with the third equally-divided part of the valve leaflet through the third lapping section.
6. The heart valve of claim 1, wherein the second end of the outer skirt covers at least one cell of the valve frame, the second end of the outer skirt having a height less than or equal to a height of the first end of the inner skirt.
7. The heart valve of claim 1, wherein the material of the leaflet is pericardial material.
8. The heart valve of claim 1, wherein the material of the inner skirt is a pericardial material.
9. The heart valve of claim 5, wherein the material of the first lap-section is a pericardial material;
the material of the second lap-joint slice is a pericardium material;
the material of the third lap-joint slice is a pericardium material.
10. The heart valve of claim 1, wherein the material of the outer skirt is polyester fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110102840.9A CN112773564A (en) | 2021-01-26 | 2021-01-26 | Heart valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110102840.9A CN112773564A (en) | 2021-01-26 | 2021-01-26 | Heart valve |
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| CN112773564A true CN112773564A (en) | 2021-05-11 |
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| CN202110102840.9A Pending CN112773564A (en) | 2021-01-26 | 2021-01-26 | Heart valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113855326A (en) * | 2021-09-28 | 2021-12-31 | 科凯(南通)生命科学有限公司 | Artificial heart valve |
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2021
- 2021-01-26 CN CN202110102840.9A patent/CN112773564A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113855326A (en) * | 2021-09-28 | 2021-12-31 | 科凯(南通)生命科学有限公司 | Artificial heart valve |
| CN113855326B (en) * | 2021-09-28 | 2023-11-14 | 科凯(南通)生命科学有限公司 | Artificial heart valve |
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