CN215458985U - Compression device for transcatheter biological valve - Google Patents
Compression device for transcatheter biological valve Download PDFInfo
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- CN215458985U CN215458985U CN202121176749.3U CN202121176749U CN215458985U CN 215458985 U CN215458985 U CN 215458985U CN 202121176749 U CN202121176749 U CN 202121176749U CN 215458985 U CN215458985 U CN 215458985U
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- compression
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- shell
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- 238000007906 compression Methods 0.000 title claims abstract description 103
- 230000006835 compression Effects 0.000 title claims abstract description 101
- 241000237942 Conidae Species 0.000 claims description 24
- 239000002861 polymer material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 8
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 210000001765 aortic valve Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 210000004115 mitral valve Anatomy 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 210000000591 tricuspid valve Anatomy 0.000 description 1
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Abstract
The utility model discloses a transcatheter biological valve compression device, which comprises a pre-compression cone and a final compression cone which are separately arranged cone structures, wherein each cone structure comprises a guide section and a compression section, the diameter of the inner wall of the guide section is gradually reduced towards the direction of the compression section, the surface of the inner wall of the guide section is integrally in a conical shape, the minimum diameter of the guide section is the same as the diameter of the compression section, and the inner wall of the compression section is in a cylindrical shape. The diameter of the compression section of the final compression cone is smaller than the diameter of the compression section of the pre-compression cone. When the biological valve is used, the valve frame of the biological valve is pre-compressed through the inner hole of the pre-compression cone, and then is finally compressed through the inner hole of the final compression section. The inner hole diameters of the two compression cone devices are gradually reduced, the radial pressure applied to the valve frame is gradually increased, the compression operation of the biological valve can be completed by dragging and moving for two times, the required operation time is obviously shortened compared with the prior art, and the damage probability of the biological valve is reduced.
Description
Technical Field
The utility model belongs to the technical field of medical instruments, and relates to a compression device for a transcatheter biological valve.
Background
When the transcatheter biological valve system is used, the biological valve needs to be loaded into the delivery system by means of manual operation, and the biological valve is released after being positioned to a target position. In the prior art, the complexity of the compression device causes the compression operation of the biological valve to take a long time, and may cause problems of excessive compression, damage to the valve frame, and breakage of the valve, so that the biological valve cannot be compressed and loaded normally. The above problems directly extend the time required for the biological valve implantation surgery, increasing the risks faced by the surgery. If the shorter the time elapsed during the pre-release procedure of the biological valve, the simpler the compression procedure is performed, the less damage to the valve is done, the less time the patient is subjected to the operation, and the higher the success rate of the operation.
In the existing technology, the method of compressing the biological valve by coaxially rotating the biological valve through the mechanical transmission mechanism usually requires components such as a guide rod and a catheter to limit the maximum and minimum diameters of the biological valve, and the operation process is tedious, extremely long and time-consuming, and easily causes damage to the biological valve, thereby reducing the success rate of the operation.
Another prior art solution is to use a compression device based on reducer principle to compress a biological valve, which requires the compression device and a delivery system matching with the biological valve to be detachably and manually connected together and have a fixing and anti-loosening function. When compressing the biological valve, the operator is required to manually rotate the handle at the proximal end of the delivery system to pass the biological valve through the reducer and into the sheath, and the operator cannot observe the operating status of the biological valve. The significant disadvantage is that the operation steps of the compressing device are complicated and it is impossible to observe in real time whether the compressed valve is damaged when entering the sheath. Therefore, the existing biological valve compression device has the problems of complex operation process and long time consumption. There is a need for a compression device that is more convenient to operate, significantly reduces time consumption, and significantly improves compression efficiency.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems of complex operation process and long time consumption of the existing biological valve compression method, the utility model provides a transcatheter biological valve compression device, which comprises:
two cone structures, a pre-compression cone and a final compression cone, respectively, wherein,
the precompression cone is an integrally formed structural body and comprises a guide section and a compression section, the diameter of the inner wall of the guide section is gradually reduced towards the direction of the compression section, the surface of the inner wall of the guide section is in a conical surface shape as a whole, the minimum diameter of the guide section is the same as the diameter of an inner hole of the compression section, and the inner wall of the compression section is in a cylindrical surface shape;
the final compression cone comprises an upper cone shell, a lower cone shell, a positioning pin and an assembler, the positioning pin is fixedly installed in mounting holes on two sides of the edge of the lower cone shell, two pin holes are formed in the corresponding position of the upper cone shell and used for being installed in a matched mode with the positioning pin, the upper cone shell and the lower cone shell are detachably connected together through the positioning pin, the edges of the two cone shells after connection are tightly attached to form a cone structure of the final compression cone together, the final compression cone comprises a guide section and a compression section, the diameter of the inner wall of the guide section is gradually reduced towards the direction of the compression section, the surface of the inner wall of the guide section is integrally in a cone shape, the minimum diameter of the inner wall of the guide section is the same as the diameter of the inner hole of the compression section, the inner wall of the compression section is in a cylindrical shape, and external threads are arranged outside the compression sections of the upper cone shell and the lower cone shell, the assembler is in a cylindrical shape, internal threads are arranged in the assembler, and the assembler is detachably connected with the external threads of the compression sections of the upper conical shell and the lower conical shell.
According to the compression device for the transcatheter biological valve, the number of the positioning pins is even, and the positioning pins are symmetrically arranged on the edges of the upper conical shell and the lower conical shell relative to the axis of the upper conical shell and the lower conical shell, and preferably is 2.
According to the compression device of the transcatheter biological valve, the inner hole diameter of the compression section of the final compression cone is smaller than that of the compression section of the pre-compression cone.
According to the compression device of the transcatheter biological valve, the pre-compression cone and the final compression cone are preferably made of high polymer materials.
Utility model's beneficial effect: the biological valve compression device provided by the utility model is characterized in that the biological valve is pre-compressed by the pre-compression cone device, and then is finally compressed and formed by the inner hole of the final compression cone device. Because the inner hole diameter of two compression awl devices reduces gradually, the radial pressure of applying on the valve frame increases gradually, draws the compression operation that removes just can accomplish biological valve through twice, and the operating procedure compares prior art and simplifies greatly, and required operating time is showing and is shortening, because the direct operation step to biological valve reduces, can reduce biological valve's damage probability.
Drawings
FIG. 1 is a perspective view of a pre-compression cone apparatus according to an embodiment of the present invention;
FIG. 2 is a front view of a pre-compression cone apparatus according to an embodiment of the present invention;
FIG. 3 is a perspective view of a final compression cone apparatus according to an embodiment of the present invention;
FIG. 4 is a front view of a final compression cone apparatus according to an embodiment of the present invention;
FIG. 5 is an exploded view of a final compression cone apparatus according to an embodiment of the present invention.
Detailed Description
The utility model will be further illustrated with reference to the following specific examples. It should be understood that the examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that various changes or modifications can be made by those skilled in the art after reading the disclosure of the present invention, and such equivalents also fall within the scope of the utility model.
According to one embodiment of the present invention, as shown in fig. 1 and 2, a pre-compression cone 100 for a biological valve is used for performing primary compression molding on the biological valve, and comprises a guide section 160 and a compression section 170. In particular implementations, the pre-compression process is accomplished by guiding the biological valve through the guide section 160 into the compression section 170 and moving the valve frame of the biological valve completely through the compression section 170 by pulling (e.g., via sutures).
Fig. 3, 4 and 5 show the structure of the final compression cone 110 of the biological valve of the present embodiment, which is used for performing final compression molding on the biological valve, and comprises a cone shell upper cone shell 120, a cone shell lower cone shell 130, a positioning pin 140 and an assembler 150. In practical implementation, the lower cone shell 130 is already fixedly installed with the positioning pins 140 in advance, the number of the positioning pins 140 provided in this embodiment is 2, and two positioning pins 140 are symmetrically arranged with respect to the axis of the cone shell. The upper conical shell 120 is connected with the positioning pin 140 through a pin hole on the upper conical shell, and the edges of the upper conical shell 120 and the lower conical shell 130 are tightly attached together by applying pressure in opposite directions to the upper conical shell and the lower conical shell. The assembler 150 is rotatably mounted with the external thread section 200 on the upper conical shell 120 and the external thread section 200 on the lower conical shell 130. The pre-compressed, shaped biological valve is guided to the compression section 190 by the guide section 180 and the valve frame of the moving biological valve is pulled (e.g., by sutures) to move completely through the compression section 190 to complete the final compression process.
The inner hole diameter of the compression section 190 of the final compression cone 110 is smaller than that of the compression section 170 of the pre-compression cone 100, the radial pressure applied to the valve frame is gradually increased through the pre-compression cone 100 and the final compression cone 110 in sequence, the compression operation of the biological valve can be completed through two times of dragging and moving, compared with the prior art, the operation steps are greatly simplified, the required operation time is obviously shortened, and the damage probability of the biological valve can be reduced due to the fact that the direct operation steps of the biological valve are reduced.
The final compression cone 110 is designed with a fabricated construction for the purpose of use with an associated delivery system, and the specific method of use is not described in detail herein.
The transcatheter biological valve compression device of the present invention may be used for compression of aortic, mitral, and tricuspid valves.
The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A device for compressing a transcatheter biological valve, comprising:
two cone structures, a pre-compression cone and a final compression cone, respectively, wherein,
the precompression cone is an integrally formed structural body and comprises a guide section and a compression section, the diameter of the inner wall of the guide section is gradually reduced towards the direction of the compression section, the surface of the inner wall of the guide section is in a conical surface shape as a whole, the minimum diameter of the guide section is the same as the diameter of an inner hole of the compression section, and the inner wall of the compression section is in a cylindrical surface shape;
the final compression cone comprises an upper cone shell, a lower cone shell, a positioning pin and an assembler, the positioning pin is fixedly installed in mounting holes on two sides of the edge of the lower cone shell, two pin holes are formed in the corresponding position of the upper cone shell and used for being installed in a matched mode with the positioning pin, the upper cone shell and the lower cone shell are detachably connected together through the positioning pin, the edges of the two cone shells after connection are tightly attached to form a cone structure of the final compression cone together, the final compression cone comprises a guide section and a compression section, the diameter of the inner wall of the guide section is gradually reduced towards the direction of the compression section, the surface of the inner wall of the guide section is integrally in a cone shape, the minimum diameter of the inner wall of the guide section is the same as the diameter of the inner hole of the compression section, the inner wall of the compression section is in a cylindrical shape, and external threads are arranged outside the compression sections of the upper cone shell and the lower cone shell, the assembler is in a cylindrical shape, internal threads are arranged in the assembler, and the assembler is detachably connected with the external threads of the compression sections of the upper conical shell and the lower conical shell.
2. The device of claim 1, wherein the positioning pins are provided in an even number and are symmetrically disposed on the edges of the upper and lower conical shells relative to the axis of the upper and lower conical shells.
3. The device of claim 2, wherein the number of said positioning pins is 2.
4. The device of claim 3, wherein the inner bore diameter of the compression section of the final compression cone is smaller than the inner bore diameter of the compression section of the pre-compression cone.
5. The device of any of claims 1-4, wherein the pre-compression cone and the final compression cone are preferably made of a polymer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121176749.3U CN215458985U (en) | 2021-05-28 | 2021-05-28 | Compression device for transcatheter biological valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121176749.3U CN215458985U (en) | 2021-05-28 | 2021-05-28 | Compression device for transcatheter biological valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215458985U true CN215458985U (en) | 2022-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121176749.3U Active CN215458985U (en) | 2021-05-28 | 2021-05-28 | Compression device for transcatheter biological valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215458985U (en) |
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2021
- 2021-05-28 CN CN202121176749.3U patent/CN215458985U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A compression device for transcatheter biological valves Granted publication date: 20220111 Pledgee: Bank of Nanjing Jiangbei District branch of Limited by Share Ltd. Pledgor: Nanjing Shengde Medical Technology Co.,Ltd. Registration number: Y2024980006262 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |