Transcatheter biological valve compression device

Abstract

The present application belongs to the technical field of medical devices, and particularly relates to a transcatheter biological valve compression device, which comprises a shell, the shell has a top opening, a pre-compression cone, a guide tube, a final compression cone and a material receiver are sequentially arranged in the shell from top to bottom, an annular protrusion is arranged on the outer periphery of the pre-compression cone, the diameter of the annular protrusion is greater than that of the top opening of the shell, so that the pre-compression cone can be inserted into the shell and clamped with the top opening through the annular protrusion; one end of the guide tube is in communication with the pre-compression cone, and the other end is in communication with the final compression cone; a support structure is further arranged in the shell, the final compression cone is supported on the support structure, and the material receiver is arranged at the bottom of the shell. The compression device is convenient to use and has good compression effect.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical devices, and particularly relates to a transcatheter biological valve compression device. BACKGROUND

[0002] The transcatheter biological valve system needs to be loaded into the delivery system by manual operation when in use, and the biological valve is released after positioning at the target position. In the current existing technology, the compression operation of the biological valve needs to take a long time due to the complexity of the compression device, and may also cause problems such as over-compression of the biological valve, damage to the valve frame, and damage to the valve, so that the biological valve cannot be normally compressed and loaded. The above problems directly prolong the time required for the biological valve implantation surgery, and increase the risk of the surgery. If the time experienced before the release of the biological valve is shorter, the compression operation is simpler, the damage to the valve is smaller, the patient bears less surgery time, and the success rate of the surgery is higher.

[0003] In the current existing technology, there are also descriptions about the transcatheter biological valve compression device. For example, the Chinese invention patent with the application number CN202110594298.3 discloses a compression device for transcatheter biological valve, which includes two separately arranged conical structures of pre-compression cone and final compression cone. Both of the two conical structures include a guide section and a compression section. The inner wall of the guide section gradually decreases in diameter towards the compression section, and the inner wall surface is in the shape of a conical surface. The smallest diameter of the guide section is the same as the diameter of the compression section. The inner wall of the compression section is in the shape of a cylindrical surface. The diameter of the compression section of the final compression cone is smaller than that of the pre-compression cone. When in use, the valve frame of the biological valve is first pre-compressed through the inner hole of the pre-compression cone, and then finally compressed through the inner hole of the final compression section. However, the compression device still needs to be matched with the delivery system to complete the delivery of the compressed biological valve after the compression of the biological valve is completed. Therefore, a suitable delivery system is still involved, which causes an increase in cost and a complicated operation. SUMMARY

[0004] The problem to be solved by the present application and the technical solution proposed are to improve the existing technology, so as to provide a transcatheter biological valve compression device. The device of the present application can compress the biological valve, and is convenient and efficient to operate.

[0005] The above technical purpose of the present application is achieved by the following technical solution:

[0006] One embodiment of the present application provides a transcatheter biological valve compression device, comprising a housing having a top opening, a pre-compression cone, a guide tube, a final compression cone and a material receiver arranged in the housing from top to bottom, an annular protrusion is arranged on the outer periphery of the pre-compression cone, the diameter of the annular protrusion is greater than the diameter of the top opening of the housing, so that the pre-compression cone can be inserted into the housing and clamped with the top opening through the annular protrusion; one end of the guide tube is in communication with the pre-compression cone, and the other end is in communication with the final compression cone; a support structure is further arranged in the housing, and the final compression cone is supported on the support structure, and the material receiver is arranged at the bottom of the housing.

[0007] According to the transcatheter biological valve compression device provided by the above-mentioned one embodiment of the present application, the pre-compression cone is an integrally formed structure, comprising a guide section and a compression section, the inner wall of the guide section gradually decreases in diameter towards the compression section, the inner wall surface is a whole conical surface, and the minimum diameter is the same as the inner hole diameter of the compression section, and the inner wall of the compression section is a cylindrical surface.

[0008] According to the transcatheter biological valve compression device provided by the above-mentioned one embodiment of the present application, the final compression cone comprises a guide section and a compression section, the inner wall of the guide section gradually decreases in diameter towards the compression section, the inner wall surface is a whole conical surface, and the minimum diameter is the same as the inner hole diameter of the compression section, and the inner wall of the compression section is a cylindrical surface.

[0009] According to the transcatheter biological valve compression device provided by the above-mentioned one embodiment of the present application, the guide tube comprises an integrally formed outer tube and an inner tube, the inner wall of the outer tube is a cylindrical surface, and the inner tube comprises a first section inner tube and a second section inner tube connected integrally, the first section inner tube gradually decreases in diameter towards the second section inner tube, the inner wall surface is a whole conical surface, and the minimum diameter is the same as the inner hole diameter of the second section inner tube, and the inner wall of the second section inner tube is a cylindrical surface.

[0010] According to the transcatheter biological valve compression device provided by the above-mentioned one embodiment of the present application, the outer diameter of the compression section of the pre-compression cone is smaller than the inner diameter of the second section inner tube of the guide tube, and the inner diameter of the guide section of the final compression cone is greater than the outer diameter of the first section inner tube of the guide tube, so that the compression section of the pre-compression cone is inserted into the second section inner tube of the guide tube, and the first section inner tube of the guide tube is inserted into the guide section of the final compression cone.

[0011] According to the one embodiment of the above-mentioned application, the final compression cone comprises an upper cone shell, a lower cone shell, positioning pins and an adapter, the positioning pins are fixedly installed in the installation holes on both sides of the edge of the lower cone shell, two pin holes are arranged at the corresponding positions of the upper cone shell for matching installation with the positioning pins, the upper cone shell and the lower cone shell are detachably connected together through the positioning pins, the edges of the two cone shells after connection are tightly fitted, and the two edges jointly form the cone structure of the final compression cone; the outer threads are arranged outside the compression sections of the upper cone shell and the lower cone shell, the adapter is in a cylindrical shape, and the inner threads are arranged inside the adapter, and the adapter is detachably connected with the outer threads of the compression sections of the upper cone shell and the lower cone shell.

[0012] According to the one embodiment of the above-mentioned application, the support structure comprises a plurality of support frames and a support ring, one end of the support frame is fixed to the inner wall of the shell, and the other end of the support frame is fixed to the support ring.

[0013] According to the one embodiment of the above-mentioned application, the number of the support frames is at least three, and the support frames are uniformly distributed and fixed to the periphery of the support ring.

[0014] According to the one embodiment of the above-mentioned application, the inner diameter of the support ring is smaller than the outer diameter of the guide section of the final compression cone, so that the final compression cone can be supported on the support ring and fixed at the guide section of the final compression cone.

[0015] According to the one embodiment of the above-mentioned application, the pre-compression cone and the final compression cone are both made of a high polymer material.

[0016] In summary, the application has the following beneficial effects: the pre-compression cone and the final compression cone are connected through the guide pipe, so that the pre-compressed biological valve can be directly introduced into the final compression cone through the guide pipe for compression, and the compressed biological valve can be directly put into the material receiver for storage, which is convenient and easy to operate. The compression device of the application has good stability, and the biological valve can be directly compressed without secondary operation. BRIEF DESCRIPTION OF DRAWINGS

[0017] The disclosure will become more readily understood by reference to the accompanying drawings. It will be readily understood that these drawings are only for illustrative purposes and are not intended to limit the application in any way.

[0018] Fig. 1 It is a structural schematic diagram of the transcatheter biological valve compression device of the application.

[0019] Fig. 2 Structure diagram of the shell of the transcatheter biological valve compression device of the present application;

[0020] Fig. 3 Structure diagram of the guide tube of the transcatheter biological valve compression device of the present application.

[0021] In the drawings, each of the following is indicated: shell-1; pre-compression cone-2; guide tube-3; final compression cone-4; material receiver-5; support structure-6; top opening-11; annular protrusion-21; outer tube-31; inner tube-32; first section inner tube-321; second section inner tube-322; support frame-61; support ring-62. Embodiment

[0022] In order to make the technical means, creative features, purposes and effects achieved by the present application easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the embodiments of the present application and the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0023] In the description of the present patent, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "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 present patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present patent.

[0024] In the description of the present patent, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those of ordinary skill in the art, the specific meanings of the above terms in the present patent can be understood according to the specific circumstances.

[0025] As Figs. 1-3As shown, the preferred embodiment of the present application provides a kind of compressed device of trans-catheter biological valve, including shell 1, shell 1 has top opening 11.There is pre-compression cone 2, guide tube 3, final compression cone 4 and material receiver 5 in shell 1 from top to bottom in turn.The outer periphery of pre-compression cone 2 is provided with annular protrusion 21.The diameter of annular protrusion 21 is greater than the diameter at the top opening 11 of shell 1, so that pre-compression cone 2 can be inserted into shell 1 and be clamped with top opening 11 by annular protrusion 21.The one end of guide tube 3 is communicated with pre-compression cone 2, and the other end is communicated with final compression cone 4.Supporting structure 6 is also provided in shell 1.Final compression cone 4 is supported on supporting structure 5.Material receiver 5 is arranged at the bottom of shell 1.

[0026] Further, pre-compression cone 2 is an integrally formed structure, including guide section and compression section, the inner wall of guide section gradually decreases in diameter towards compression section, the inner wall surface is overall conical, and the minimum diameter is the same as the inner hole diameter of compression section, and the inner wall of compression section is cylindrical.

[0027] Further, final compression cone 4 includes guide section and compression section, the inner wall of guide section gradually decreases in diameter towards compression section, the inner wall surface is overall conical, and the minimum diameter is the same as the inner hole diameter of compression section, and the inner wall of compression section is cylindrical.

[0028] Further, guide tube 3 includes integrally formed outer tube 31 and inner tube 32.The inner wall of outer tube 31 is cylindrical.The inner tube 32 includes integrally connected first section inner tube 321 and second section inner tube 322.The first section inner tube 321 gradually decreases in diameter towards the second section inner tube 322, the inner wall surface is overall conical, and the minimum diameter is the same as the inner hole diameter of second section inner tube 322.The inner wall of second section inner tube 322 is cylindrical.

[0029] Further, the outer diameter of compression section of pre-compression cone 2 is smaller than the inner diameter of second section inner tube 322 of guide tube 3, and the inner diameter of guide section of final compression cone 4 is greater than the outer diameter of first section inner tube 321 of guide tube 3, so that the compression section of pre-compression cone 2 is inserted into the second section inner tube 322 of guide tube 3, and the first section inner tube 321 of guide tube 3 is inserted into the guide section of final compression cone 4.

[0030] Further, the final compression cone 4 comprises an upper cone shell, a lower cone shell, positioning pins and an adapter, the positioning pins are fixedly installed in the installation holes on both sides of the edge of the lower cone shell, two pin holes are arranged at the corresponding positions of the upper cone shell for cooperating with the positioning pins, the upper cone shell and the lower cone shell are detachably connected together through the positioning pins, the edges of the two cone shells after connection are tightly fitted, and together form the cone structure of the final compression cone. The outer threads are arranged outside the compression sections of the upper cone shell and the lower cone shell, the adapter is in a cylindrical shape, and the inner threads are arranged inside the adapter, and the adapter is detachably connected with the outer threads of the compression sections of the upper and lower cone shells.

[0031] Further, the support structure 6 comprises a plurality of support frames 61 and a support ring 62. One end of the support frame 61 is fixed to the inner wall of the shell 1, and the other end of the support frame 61 is fixed to the support ring 62.

[0032] Further, the number of the support frames 61 is at least three, and in this embodiment, the number is four, which are uniformly distributed and fixed to the periphery of the support ring 62.

[0033] Further, the inner diameter of the support ring 62 is smaller than the outer diameter of the guide section of the final compression cone 4, so that the final compression cone 4 can be supported on the support ring 62 and fixed at the guide section of the final compression cone 4.

[0034] Further, the pre-compression cone 2 and the final compression cone 4 are both made of high polymer materials.

[0035] The above specific embodiments further specifically describe the purposes, technical solutions and beneficial effects of the present application, and it should be understood that the above description is only a specific embodiment of the present application, and does not limit the present application in any form, and any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments are within the scope of the technical solutions of the present application.

Claims

1. A transcatheter bioprosthetic valve compression device, characterized in that, The device includes an outer casing with a top opening. Inside the casing, from top to bottom, are arranged a pre-compression cone, a guide tube, a final compression cone, and a receiver. The pre-compression cone has an annular protrusion on its outer periphery, the diameter of which is larger than the diameter of the top opening of the casing, allowing the pre-compression cone to be inserted into the casing and engaged with the top opening by the annular protrusion. One end of the guide tube communicates with the pre-compression cone, and the other end communicates with the final compression cone. A support structure is also provided inside the casing, supporting the final compression cone. The receiver is located at the bottom of the casing. The pre-compression cone is a structure integrally formed, including a guide section and a compression section. The diameter of the inner wall of the guide section gradually decreases towards the compression section, and its inner wall surface is generally conical. Its minimum diameter is the same as the inner diameter of the compression section. The inner wall of the compression section is cylindrical. The final compression cone includes a guide section and a compression section. The diameter of the inner wall of the guide section gradually decreases towards the compression section, and its inner wall surface is generally conical. Its minimum diameter is the same as the inner diameter of the compression section. The inner wall of the compression section is cylindrical. The guide tube includes an integrally formed outer tube and an inner tube. The inner wall of the outer tube is cylindrical. The inner tube includes an integrally connected first inner tube section and a second inner tube section. The diameter of the first inner tube section gradually decreases in the direction towards the second inner tube section. Its inner wall surface is generally conical. Its minimum diameter is the same as the inner diameter of the second inner tube section. The inner wall of the second inner tube section is cylindrical.

2. The transcatheter bioprosthetic valve compression device according to claim 1, characterized in that, The outer diameter of the compression section of the pre-compression cone is smaller than the inner diameter of the second inner tube of the guide tube, and the inner diameter of the guide section of the final compression cone is larger than the outer diameter of the first inner tube of the guide tube, so that the compression section of the pre-compression cone is inserted into the second inner tube of the guide tube, and the first inner tube of the guide tube is inserted into the guide section of the final compression cone.

3. The transcatheter bioprosthetic valve compression device according to claim 1, characterized in that, The final compression cone includes an upper conical shell, a lower conical shell, a locating pin, and an assembler. The locating pin is fixedly installed in the mounting holes on both sides of the edge of the lower conical shell. The upper conical shell has two pin holes at corresponding positions for engaging with the locating pin. The upper and lower conical shells are detachably connected together by the locating pin, and the edges of the two conical shells fit tightly together to form the conical structure of the final compression cone. External threads are provided on the outside of the compression sections of the upper and lower conical shells. The assembler is cylindrical with internal threads and is detachably connected to the external threads of the compression sections of the upper and lower conical shells.

4. The transcatheter bioprosthetic valve compression device according to claim 1, characterized in that, The support structure includes multiple support frames and support rings. One end of each support frame is fixed to the inner wall of the outer shell, and the other end of each support frame is fixed to the support ring.

5. The transcatheter bioprosthetic valve compression device according to claim 4, characterized in that, The number of support frames is at least three, which are evenly distributed and fixed around the periphery of the support ring.

6. The transcatheter bioprosthetic valve compression device according to claim 4, characterized in that, The inner diameter of the support ring is smaller than the outer diameter of the guide section of the final compression cone, so that the final compression cone can be supported on the support ring and fixed at the guide section of the final compression cone.

7. The transcatheter bioprosthetic valve compression device according to claim 1, characterized in that, Both the pre-compression cone and the final compression cone are made of polymer materials.

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