Disclosure of Invention
To solve the problems in the related art, the embodiments of the present disclosure provide a prosthetic valve sinus complex.
In a first aspect, embodiments of the present disclosure provide a prosthetic valve sinus complex comprising a leaflet lower edge skirt and a leaflet;
One surface of the skirt edge of the lower edge of the valve leaflet is used for being attached to and connected with the valve annulus;
The lower edge of the leaflet is connected to the other side of the leaflet lower edge skirt for forming a leaflet pocket between the leaflet and the sinus wall.
In one embodiment of the present disclosure, an upper rim arm protrudes from the leaflet between an upper rim of the leaflet and a lower rim of the leaflet, an end of the upper rim arm for connection with the sinus wall.
In one embodiment of the present disclosure, the prosthetic valve sinus complex further comprises an upper rim arm skirt, one face of the upper rim arm skirt being connected to an end of the upper rim arm, the other face of the upper rim arm skirt being adapted to be connected to the sinus wall.
In one embodiment of the present disclosure, the leaflet is integrally formed with the leaflet lower edge skirt;
Or the lower edge of the valve leaflet is sewed with the other surface of the skirt edge of the lower edge of the valve leaflet.
In one embodiment of the present disclosure, the leaflet lower edge skirt, and the upper edge arm skirt are integrally formed;
Or the lower edge of the valve leaflet is sewed with the other surface of the lower edge skirt of the valve leaflet, and one surface of the upper edge arm skirt is sewed with the end part of the upper edge arm.
In one embodiment of the present disclosure, the leaflet, leaflet lower edge skirt and upper edge arm skirt are pieces of the same tissue, chemically modified pieces of a heterologous tissue, or patches of an artificial material.
In one embodiment of the present disclosure, the chemically modified xenogeneic tissue sheets include anti-calcified modified animal pericardium and arterial valves.
In one embodiment of the present disclosure, the upper edge of the leaflet is a convex structure that gradually decreases from the middle to both ends.
In one embodiment of the present disclosure, the prosthetic valve sinus complex further comprises a prosthetic sinus wall connected to the leaflet skirt, the prosthetic sinus wall for abutment with the sinus wall.
In one embodiment of the present disclosure, the leaflet lower edge skirt is attached to the artificial sinus wall by a detachable structure.
According to the technical scheme provided by the embodiment of the disclosure, the artificial arterial valve sinus complex comprises a leaflet lower edge skirt and a leaflet, one surface of the leaflet lower edge skirt is used for being attached to an annulus and connected with the annulus, and the lower edge of the leaflet is connected with the other surface of the leaflet lower edge skirt and used for forming a leaflet pocket between the leaflet and the sinus wall. In operation, a doctor only needs to cut the skirt edge of the lower edge of the valve leaflet according to the annular shape of the valve leaflet, then one surface of the skirt edge of the lower edge of the valve leaflet is attached to the annular and connected with the annular, a valve pocket can be formed between the valve leaflet and the sinus wall, the shape of the valve pocket is formed before replacement, the shape of the valve pocket is relatively similar to that of the valve pocket in a human body, and the opening and closing functions of the valve sinus complex of the artificial artery after replacement can be ensured to be perfect.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Detailed Description
Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement them. In addition, for the sake of clarity, portions irrelevant to description of the exemplary embodiments are omitted in the drawings.
In this disclosure, it should be understood that terms such as "comprises" or "comprising," etc., are intended to indicate the presence of features, numbers, steps, acts, components, portions, or combinations thereof disclosed in this specification, and are not intended to exclude the possibility that one or more other features, numbers, steps, acts, components, portions, or combinations thereof are present or added.
In addition, it should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In the present disclosure, if an operation of acquiring user information or user data or an operation of presenting user information or user data to another person is referred to, the operations are all operations authorized, confirmed, or actively selected by the user.
In the related art, when the valve is replaced, a self-wrapping sheet or a bovine pericardium patch can be cut and sewn to form a prosthetic valve material, so that the valve can be replaced by the prosthetic valve material in operation.
However, the applicant found that, due to the relatively simple shape of the above-mentioned prosthetic valve material, in the operation, it is often required to first cut the prosthetic valve material by a doctor and then replace the prosthetic valve with the cut prosthetic valve, and in this process, it is also required to ensure that the shape of the formed valve pocket after replacement is relatively similar to that of the valve pocket in the human body, so as to ensure that the opening and closing functions of the cut prosthetic valve after replacement are all perfect.
For example, the artificial valve sinus composite material formed by adopting a self pericardium sheet or cutting and sewing a bovine pericardium patch is generally square, in the operation, a doctor needs to cut the artificial valve sinus composite material of the square shape firstly to obtain an artificial valve sinus composite with a shape relatively close to that of the valve leaflet of the arterial valve, and the doctor manually sets the shape of the artificial valve sinus composite during replacement to form a valve pocket between the artificial valve sinus composite and the sinus wall, so that the shape of the valve pocket is relatively close to that of the valve pocket in a human body, and the opening and closing functions of the cut artificial valve sinus composite after replacement are all perfect.
Therefore, the scheme increases the operation difficulty of replacing the arterial valve and reduces the success rate of replacement.
In order to solve the above-mentioned problem, the technical solution provided by the embodiments of the present disclosure provides a prosthetic valve sinus complex, which includes a leaflet lower edge skirt and a leaflet, one surface of the leaflet lower edge skirt is used for being attached to and connected with an annulus, and the lower edge of the leaflet is connected with the other surface of the leaflet lower edge skirt, for forming a leaflet pocket between the leaflet and the sinus wall. In operation, a doctor only needs to cut the skirt edge of the lower edge of the valve leaflet according to the annular shape of the valve leaflet, then one surface of the skirt edge of the lower edge of the valve leaflet is attached to the annular and connected with the annular, a valve pocket can be formed between the valve leaflet and the sinus wall, the shape of the valve pocket is formed before replacement, the shape of the valve pocket is relatively similar to that of the valve pocket in a human body, and the opening and closing functions of the valve sinus complex of the artificial artery after replacement can be ensured to be perfect.
Fig. 1 illustrates a front view of a prosthetic valve sinus complex according to an embodiment of the present disclosure, fig. 2 illustrates a top view of the prosthetic valve sinus complex according to an embodiment of the present disclosure, and fig. 3 illustrates a longitudinal cross-sectional view of the prosthetic valve sinus complex according to an embodiment of the present disclosure. As shown in fig. 1-3, the prosthetic valve sinus complex includes a leaflet lower edge skirt 100 and a leaflet 200, one side of the leaflet lower edge skirt 100 being adapted to be attached to and connected with the annulus, and a lower edge 201 of the leaflet 200 being connected with the other side of the leaflet lower edge skirt 100 for forming a leaflet pocket 301 between the leaflet 200 and the sinus wall 300.
In one implementation of the present disclosure, the leaflet is integrally formed with the leaflet lower edge skirt, or the leaflet lower edge is sewn to the other side of the leaflet lower edge skirt.
In one implementation of the present disclosure, the leaflet, leaflet lower edge skirt, may be a homogenous tissue sheet, a chemically modified xenogeneic tissue sheet, or an artificial material patch. Wherein the heterologous tissue slices subjected to chemical modification treatment comprise animal pericardium subjected to anti-calcification modification treatment and arterial valves.
In the technical scheme provided by the embodiment of the disclosure, the artificial arterial valve sinus complex comprises a leaflet lower edge skirt and a leaflet, wherein one surface of the leaflet lower edge skirt is used for being attached to an annulus and connected with the annulus, and the lower edge of the leaflet is connected with the other surface of the leaflet lower edge skirt and used for forming a leaflet pocket between the leaflet and the sinus wall. In operation, a doctor only needs to cut the skirt edge of the lower edge of the valve leaflet according to the annular shape of the valve leaflet, then one surface of the skirt edge of the lower edge of the valve leaflet is attached to the annular and connected with the annular, a valve pocket can be formed between the valve leaflet and the sinus wall, the shape of the valve pocket is formed before replacement, the shape of the valve pocket is relatively similar to that of the valve pocket in a human body, and the opening and closing functions of the valve sinus complex of the artificial artery after replacement can be ensured to be perfect.
In one embodiment of the present disclosure, fig. 4 shows an elevation view of a prosthetic valve sinus complex according to an embodiment of the present disclosure. As shown in fig. 4, between the upper edge 202 of the leaflet 200 and the lower edge 201 of the leaflet 200, an upper edge arm 400 protrudes from the outside of the leaflet 200, and an end of the upper edge arm 400 is used to connect with the sinus wall 300.
In the technical scheme, after the prosthetic valve sinus complex is used for replacing an arterial valve, the extension degree of the upper edge arm is increased along with the increase of the diameter of the arterial valve, so that the size of an opening of a valve pocket is increased along with the increase of the diameter of the arterial valve sinus complex, and the situation that the prosthetic valve sinus complex is not closed incompletely is ensured.
In one embodiment of the present disclosure, as shown in fig. 4, the prosthetic valve sinus complex further includes an upper rim arm skirt 500, one face of the upper rim arm skirt 500 being connected to the end of the upper rim arm 400, and the other face of the upper rim arm skirt 500 being adapted to be connected to the sinus wall 300.
In one embodiment of the present disclosure, the leaflet lower edge skirt, and the upper edge arm skirt are integrally formed;
Or the lower edge of the valve leaflet is sewed with the other surface of the lower edge skirt of the valve leaflet, and one surface of the upper edge arm skirt is sewed with the end part of the upper edge arm.
In one embodiment of the present disclosure, the leaflet, leaflet lower edge skirt and upper edge arm skirt are pieces of the same tissue, chemically modified pieces of a heterologous tissue, or patches of an artificial material.
In one embodiment of the present disclosure, the chemically modified xenogeneic tissue sheets include anti-calcified modified animal pericardium and arterial valves.
In the technical scheme, when the prosthetic valve sinus complex is used for replacing an arterial valve, a doctor can directly attach and connect the other surface of the skirt edge of the upper edge arm with the sinus wall, so that the operation difficulty in replacing the arterial valve is reduced, and the success rate of replacement is improved.
In one embodiment of the present disclosure, the upper edge of the leaflet is a convex structure that gradually decreases from the middle to both ends.
In the technical scheme, the upper edge of the valve leaflet is of a convex structure gradually decreasing from the middle part to the two ends, so that the artificial valve sinus complex is more similar to the shape of an aortic valve in a human body, and the closing condition of the artificial valve sinus complex and other autologous arterial valves is better.
In one embodiment of the present disclosure, fig. 5 shows a top view of a prosthetic valve sinus complex according to an embodiment of the present disclosure, and fig. 6 shows a longitudinal cross-sectional view of a prosthetic valve sinus complex according to an embodiment of the present disclosure. As shown in fig. 5-6, the prosthetic valve sinus complex further includes a prosthetic sinus wall 600 removably attached to the leaflet skirt 100, the prosthetic sinus wall 600 being adapted to be attached to the sinus wall.
In one implementation of the present disclosure, a plurality of break points may be provided along the line of attachment of the artificial sinus wall to the leaflet lower edge skirt, such that a frangible line structure is formed along the line of attachment, such that the two may be torn along the frangible line structure during surgery to separate the two, or the artificial sinus wall may be bonded to the leaflet lower edge skirt, such that the two may be separated during surgery.
The leaflet lower edge skirt 100 and the artificial sinus wall 600 may be integrally formed, and the artificial sinus wall 600 may be cut off along the annulus after suturing. The artificial sinus wall 600 is removed for replacement of the left and right coronary valves, and the artificial sinus wall may not be removed for replacement of the non-coronary and pulmonary valves, and the artificial sinus wall may be used to reinforce the autologous sinus wall.
In the above technical solution, the prosthetic valve sinus complex further includes a prosthetic sinus wall detachably connected to the leaflet skirt, the prosthetic sinus wall being adapted to be attached to the sinus wall. Before operation, the shape of the skirt edge of the lower edge of the valve leaflet can be fixed by the artificial sinus wall, so that the shape of the artificial valve sinus complex is not easy to deform, the shape of the artificial valve sinus complex is further ensured to be relatively close to the shape of a valve pocket in a human body, the opening and closing functions of the artificial valve sinus complex after replacement are all perfect, and in operation, when a doctor attaches the artificial sinus wall to the sinus wall and attaches and connects one surface of the skirt edge of the lower edge of the valve leaflet to the sinus wall, the artificial sinus wall can be separated from the skirt edge of the lower edge of the valve leaflet, so that the normal functions of the artificial valve sinus complex are not affected.
The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the invention referred to in this disclosure is not limited to the specific combination of features described above, but encompasses other embodiments in which any combination of features described above or their equivalents is contemplated without departing from the inventive concepts described. Such as those described above, are mutually substituted with the technical features having similar functions disclosed in the present disclosure (but not limited thereto).