Artificial valve with filling device

Abstract

The utility model relates to the technical field of medical instruments, in particular to an artificial valve with a filling device, which comprises an outer-layer support, an inner-layer support, an artificial valve leaflet and a filling component, the artificial valve leaflet is arranged on the inner side of the inner-layer support, a barb component is arranged on the periphery of the outer-layer support, the outer-layer support is sleeved on the periphery of the inner-layer support, and the filling component is arranged on the outer-layer support. A hollow area is formed between the outer-layer support and the inner-layer support, a sealing assembly is connected between the outer-layer support and the inner-layer support, the filling assembly comprises a control valve and a hollow filling expansion and contraction body, the filling expansion and contraction body is installed on the periphery of the outer-layer support in a sleeving mode and communicated with the hollow area, and the control valve is connected with the control valve. The inner-layer support is further provided with a valve inlet communicated with one end of the control valve. According to the utility model, the closed filling expansion and contraction body is sewn at the corresponding valve ring position of the artificial valve, so that the filling expansion and contraction body is congested, expanded and bulged to fill the perivalvular gap, and a better perivalvular leakage prevention function is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially is a kind of artificial valve with filling device. BACKGROUND

[0002] When existing interventional artificial valve is implanted in body, it is influenced by individual anatomical structure or pathological change degree, and there is a certain degree of paravalvular leakage, which can seriously affect the treatment effect of operation;At present, for the paravalvular leakage after interventional valve implantation, the common remedial method is to place a closure device at the paravalvular leakage opening by surgical or interventional method, but this undoubtedly increases the burden of patients;Therefore, how to improve the paravalvular leakage prevention function of valve becomes a technical problem needed urgently, at present, the paravalvular leakage prevention ability of valve is improved by means of suture thickening high molecular skirt or water-absorbing material etc., but this increases the difficulty of sheathing, and it is also useless when encountering larger paravalvular leakage opening. SUMMARY

[0003] The utility model provides a kind of artificial valve with filling device to the problems in prior art, by suturing a closed filling expansion body to the corresponding valve ring position of artificial valve, the filling expansion body is used to fill paravalvular space after filling expansion;While setting a control valve at inner layer support, the filling expansion body only allows the blood of heart to enter the hollow area between inner layer support and outer layer support and reach the filling expansion body of artificial valve corresponding valve ring position, so that filling expansion body fills paravalvular space when filling expansion, and better paravalvular leakage prevention function is played.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] The utility model provides a kind of artificial valve with filling device, it includes outer layer support, inner layer support, artificial valve leaf and filling component, the artificial valve leaf is arranged at the inside of the inner layer support, the outer periphery of the outer layer support is provided with barb component, the outer layer support is sleeved in the outer periphery of the inner layer support, and the hollow area is formed between the outer layer support and the inner layer support, the sealing component for sealing the hollow area is connected between the outer layer support and the inner layer support, the filling component includes control valve and the filling expansion body of hollow setting, the filling expansion body is installed in the outer periphery of outer layer support, the filling expansion body is communicated with the hollow area, one end of the control valve is installed in the hollow area and is connected with one side of the inner layer support, and the inner layer support is also provided with the valve inlet that is communicated with one end of the control valve.

[0006] Wherein, one side of the outer layer support is provided with flow-through hole, and the hollow area is communicated with the filling expansion body through the flow-through hole.

[0007] The sealing assembly comprises a lower sealing edge, and the lower end of the inner layer support and the lower end of the outer layer support are connected by the lower sealing edge.

[0008] The sealing assembly comprises an upper sealing edge, and the lower end of the inner layer support and the lower end of the outer layer support are connected by the upper sealing edge.

[0009] The sealing assembly comprises an outer support skirt, and the inner side of the outer layer support is connected by the outer support skirt.

[0010] The sealing assembly comprises an inner support skirt, and the outer side of the inner layer support is connected by the inner support skirt.

[0011] The barb assembly comprises a first barb group and a second barb group arranged circumferentially along the outer wall of the outer layer support, and the first barb group is located above the second barb group.

[0012] The first barb group comprises a plurality of first barb bodies arranged at equal intervals on the outer wall of the outer layer support, and the second barb group comprises a plurality of second barb bodies arranged at equal intervals on the outer wall of the outer layer support, and the first barb bodies and the second barb bodies are arranged in a staggered manner.

[0013] The control valve comprises a valve body and an elastic rope, one end of the valve body is sewn and connected to the inner layer support, the other end of the valve body is in a free state and floats in the hollow area, one end of the elastic rope is connected to the other end of the valve body, and the other end of the elastic rope is connected to the outer layer support.

[0014] The utility model discloses beneficial effects:

[0015] During work, the hollow area is formed between the inner layer support and the outer layer support, blood pressure circulation is facilitated, the through hole is communicated with the filling expansion body, the control valve is exposed from the valve inlet when the artificial valve leaflet is closed, blood enters the hollow area through the valve inlet and the control valve, and then enters the filling expansion body through the through hole, the filling expansion body is filled with blood, and the filling expansion body is inflated to fill the perivalvular space; the function of the control valve is to ensure that the blood in the hollow area does not flow out; the perivalvular position of the valve is filled with a gap in the embodiment, which is used for preventing perivalvular leakage, the main scheme is that a closed filling expansion body is sewn on the corresponding valve ring position of the artificial valve, and the filling expansion body is inflated to fill the perivalvular space; meanwhile, a control valve is arranged at the inner layer support, the filling expansion body only allows the blood of the heart to enter the hollow area between the inner layer support and the outer layer support and reach the filling expansion body at the corresponding valve ring position of the artificial valve, so that the filling expansion body is inflated to fill the perivalvular space, and the perivalvular leakage prevention function is good. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Structure diagram of a kind of artificial valve with filling device of the utility model.

[0017] Figure 2 Structure diagram of another view of a kind of artificial valve with filling device of the utility model.

[0018] Figure 3 Structure diagram of the utility model hidden after lower sealing edge.

[0019] Figure 4 Partial structure sectional view of a kind of artificial valve with filling device of the utility model.

[0020] Figure 5 State diagram when the filling expansion body of the utility model is in shrinkage state.

[0021] Figure 6 State diagram when the filling expansion body of the utility model is in inflation state.

[0022] In Figures 1 to 6 The reference signs in the drawings include:

[0023] 1, outer support; 2, inner support; 3, artificial valve leaf; 4, hollow area; 5, control valve; 6, filling expansion body; 7, valve inlet; 8, flow hole; 9, lower sealing edge; 10, upper sealing edge; 11, outer support skirt; 12, inner support skirt; 13, first barb body; 14, second barb body; 15, valve body; 16, elastic rope. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model. It can be understood that the drawings are only provided for reference and illustration, and are not used to limit the utility model. The connection relationship shown in the drawings is only for the convenience of clear description, and does not limit the connection mode.

[0025] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or a middle component can exist at the same time. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the utility model belongs. It should also be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The terms used in the specification of the utility model herein are only for the purpose of describing the specific embodiments, and are not intended to limit the utility model.

[0026] It should also be noted that in the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] As Figures 1 to 6As shown, an artificial valve with a filling device includes an outer stent 1, an inner stent 2, an artificial valve leaflet 3, and a filling assembly, the artificial valve leaflet 3 is arranged on the inner side of the inner stent 2, the outer periphery of the outer stent 1 is provided with a barb assembly, the outer stent 1 is sleeved on the outer periphery of the inner stent 2, a hollow area 4 is formed between the outer stent 1 and the inner stent 2, a sealing assembly for sealing the hollow area 4 is connected between the outer stent 1 and the inner stent 2, the filling assembly includes a control valve 5 and a hollow filling balloon 6, the filling balloon 6 is sleeved and installed on the outer periphery of the outer stent 1, the filling balloon 6 communicates with the hollow area 4, one end of the control valve 5 is arranged in the hollow area 4 and connected with one side of the inner stent 2, and the inner stent 2 is also provided with a valve inlet 7 in communication with one end of the control valve 5; wherein, one side of the outer stent 1 is provided with a flow hole 8, and the hollow area 4 communicates with the filling balloon 6 through the flow hole 8. Specifically, when the utility model works, the hollow area 4 is formed between the inner stent 2 and the outer stent 1, blood pressure is convenient to flow, and the filling balloon 6 communicates with the flow hole 8, when the artificial valve leaflet 3 is closed, the control valve 5 is exposed from the valve inlet 7, blood enters the hollow area 4 through the valve inlet 7 and the control valve 5, and then enters the filling balloon 6 through the flow hole 8, and the filling balloon 6 is filled with blood and swells to fill the perivalvular space; the function of the control valve 5 is to ensure that the blood in the hollow area 4 does not flow out; in order to fill the perivalvular space of the valve, the application prevents perivalvular leakage, and the main scheme is to sew a closed filling balloon 6 on the corresponding annulus position of the artificial valve, the filling balloon 6 is inflated and expanded to fill the perivalvular space; at the same time, a control valve 5 is arranged at the inner stent 2, the filling balloon 6 only allows the blood of the heart to enter the hollow area 4 between the inner stent 2 and the outer stent 1 and reach the filling balloon 6 at the corresponding annulus position of the artificial valve, so that the filling balloon 6 is filled and expanded to fill the perivalvular space, and the perivalvular leakage prevention function is good.

[0028] In the embodiment of the present application, the control valve 5 comprises a valve body 15 and an elastic rope 16, one end of the valve body 15 is sutured to the inner layer support 2, the other end of the valve body 15 is in a free state and floats in the hollow area 4, one end of the elastic rope 16 is connected to the other end of the valve body 15, and the other end of the elastic rope 16 is connected to the outer layer support 1; when the embodiment of the present application is loaded with a valve, the control valve 5 can be opened to discharge the liquid inside, facilitating loading, and after being implanted in the body, the control valve 5 starts to work automatically under the action of blood pressure, completing the blood filling and expansion of the filling and expanding body 6. Specifically, before the filling and expanding body 6 is filled with blood, the filling and expanding body 6 is in a contracted state, the valve body 15 is tightly sealed by pulling the opening at the other end of the valve body 15 under the connection of the elastic rope 16; when the embodiment of the present application is loaded on the native valve of the human body, blood leaks from the valve inlet 7 and impacts the valve body 15, so that the valve body 15 is opened, the elastic rope 16 is stretched, blood enters the hollow area 4, and enters the filling and expanding body 6 through the flow-through hole 8, filling the filling and expanding body 6 with blood, and the filling and expanding body 6 is inflated to fill the perivalvular space after being filled with blood.

[0029] The control valve 5 is used to ensure that the blood entering the hollow area 4 does not flow out; the material of the control valve 5 can be animal pericardium or high polymer material.

[0030] In the embodiment of the present application, the sealing assembly comprises a lower sealing edge 9, and the lower end of the inner layer support 2 and the lower end of the outer layer support 1 are connected by the lower sealing edge 9. The sealing assembly comprises an upper sealing edge 10, and the lower end of the inner layer support 2 and the lower end of the outer layer support 1 are connected by the upper sealing edge 10. The sealing assembly comprises an outer support skirt 11, and the inner side of the outer layer support 1 is connected by the outer support skirt 11. The sealing assembly comprises an inner support skirt 12, and the outer side of the inner layer support 2 is connected by the inner support skirt 12. Specifically, the hollow area 4 between the inner layer support 2 and the outer layer support 1 is sealed by the sealing assembly, which plays a role in connecting the inner layer support 2 and the outer layer support 1 and also plays a role in buffering, through the structural connection of the lower sealing edge 9, the upper sealing edge 10, the outer support skirt 11 and the inner support skirt 12; the sealing assembly can be animal pericardium or high polymer material.

[0031] In the embodiment of the present application, the barb assembly comprises a first barb group and a second barb group arranged circumferentially along the outer wall of the outer layer support 1, and the first barb group is located above the second barb group. The first barb group comprises a plurality of first barb bodies 13 arranged at equal intervals on the outer wall of the outer layer support 1, and the second barb group comprises a plurality of second barb bodies 14 arranged at equal intervals on the outer wall of the outer layer support 1. The first barb bodies 13 and the second barb bodies 14 are arranged in a staggered manner. Specifically, under the above arrangement, a height difference is formed between the first barb bodies 13 and the second barb bodies 14. The first barb bodies 13 are used to anchor on the native annulus of the human body, and the second barb bodies 14 are used to anchor on the native leaflet of the human body. Further, according to actual needs, the bending angles and lengths of the first barb bodies 13 and the second barb bodies 14 are different, so as to ensure that they can be well anchored on the native annulus and the native leaflet.

[0032] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed in the preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application. Any simple modification, equivalent change and modification of the above embodiment within the scope of the present application are all within the scope of the present application.

Claims

1. A prosthetic valve having a filling device, characterized by: The artificial valve comprises an outer stent, an inner stent, an artificial valve leaflet and a filling assembly. The artificial valve leaflet is arranged inside the inner stent. The outer periphery of the outer stent is provided with a barb assembly. The outer stent is sleeved on the outer periphery of the inner stent. A hollow region is formed between the outer stent and the inner stent. A sealing assembly for sealing the hollow region is connected between the outer stent and the inner stent. The filling assembly comprises a control valve and a hollow filling expansion body. The filling expansion body is sleeved and mounted on the outer periphery of the outer stent. The filling expansion body is in communication with the hollow region. One end of the control valve is arranged in the hollow region and connected with one side of the inner stent. The inner stent is further provided with a valve inlet in communication with one end of the control valve.

2. The prosthetic valve with a filling device according to claim 1, characterized in that: One side of the outer stent is provided with a flow-through hole. The hollow region is in communication with the filling expansion body through the flow-through hole.

3. The prosthetic valve with a filling device according to claim 1, characterized in that: The sealing assembly comprises a lower sealing edge. The lower end of the inner stent and the lower end of the outer stent are connected with the lower sealing edge.

4. The prosthetic valve with a filling device according to claim 1, characterized in that: The sealing assembly comprises an upper sealing edge. The lower end of the inner stent and the lower end of the outer stent are connected with the upper sealing edge.

5. The prosthetic valve with a filling device according to claim 1, characterized in that: The sealing assembly comprises an outer stent skirt. The inner side of the outer stent is connected with the outer stent skirt.

6. The prosthetic valve with a filling device according to claim 1, characterized in that: The sealing assembly comprises an inner stent skirt. The outer side of the inner stent is connected with the inner stent skirt.

7. The prosthetic valve with a filling device according to claim 1, characterized in that: The barb assembly comprises a first barb group and a second barb group arranged circumferentially along the outer wall of the outer stent. The first barb group is located above the second barb group.

8. The prosthetic valve with a filling device according to claim 7, characterized in that: The first barb group comprises a plurality of first barb bodies arranged at equal intervals on the outer wall of the outer stent. The second barb group comprises a plurality of second barb bodies arranged at equal intervals on the outer wall of the outer stent. The first barb bodies and the second barb bodies are arranged in a staggered manner.

9. The prosthetic valve with a filling device according to claim 1, characterized in that: The control valve comprises a valve body and an elastic rope. One end of the valve body is sutured to the inner stent. The other end of the valve body is in a free state and floats in the hollow region. One end of the elastic rope is connected to the other end of the valve body. The other end of the elastic rope is connected to the outer stent.

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