Setting device for NiTi tube of heart valve forming ring

Abstract

The utility model relates to the technical field of machining and forming devices, in particular to a heart valve forming ring NiTi tube shaping device which comprises a base, a rotary table platform, a fixed core body arranged in the middle of the rotary table platform and a plurality of toggle clamping mechanisms annularly arranged on the upper end face of the rotary table platform at equal intervals. The toggle clamp mechanisms are located on the periphery of the fixed core body, the periphery of the fixed core body is sleeved with a shape control piece, a shape limiting groove is formed in the peripheral wall of the shape control piece, and a plurality of pressing pieces are arranged on the peripheral wall of the shape control piece in the circumferential direction of the shape control piece. The NiTi pipe is arranged in the shape limiting groove of the shape control piece in a surrounding sectional mode, the NiTi pipe is prevented from being damaged by an operator in the shaping process, the pressing piece is pre-fixed in a sectional mode through the toggle clamp, the NiTi pipe is prevented from popping up, damage to the NiTi pipe is reduced, and personal damage to the operator caused by popping up is reduced; and meanwhile, the production efficiency of the NiTi pipe of the heart valve forming ring is improved.

Description

Technical Field

[0001] This utility model relates to the field of processing and forming equipment technology, and in particular to a shaping device for a NiTi tube for heart valve forming rings. Background Technology

[0002] The cut NiTi tubes for heart valve angioplasty are fixed in a molding die and then heat-treated to obtain the desired shape. During the molding process, it was found that the NiTi tubes were prone to popping out during insertion into the die, making them difficult to handle. Because the method used is a snap-fit ​​mechanism, most molded products break and become unusable. Existing molding methods rely on finger pressing, which not only easily causes product breakage but also poses a risk of injury to the operator if the tubes pop out during molding. Summary of the Invention

[0003] This invention addresses the problems in existing technologies by providing a shaping device for NiTi tubes used in heart valve annuli. The device features a novel structure, using a segmented, surrounding method to mold the NiTi tube into the shape-limiting groove of the shape control component. This prevents damage to the NiTi tube during shaping and improves product yield and quality. Furthermore, the invention employs segmented pre-fixing clamps with elbow clamps to prevent the NiTi tube from popping out, reducing damage to the tube and potential operator injury. It also increases operator efficiency during molding, saving time and improving the overall production efficiency of NiTi tubes for heart valve annuli.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model provides a shaping device for a NiTi tube for heart valve annuli, which includes a base, a turntable platform rotatably mounted on the base, a fixed core mounted on the center of the turntable platform, and multiple elbow clamping mechanisms. The multiple elbow clamping mechanisms are arranged at equal intervals around the upper surface of the turntable platform and are located on the outer periphery of the fixed core. A shape control component is sleeved on the outer periphery of the fixed core. The outer peripheral wall of the shape control component is provided with a shape limiting groove. Multiple pressure plates are mounted on the outer peripheral wall of the shape control component along its circumference. The pressure plates are detachably connected to the shape control component, and each pressure plate corresponds to one of the elbow clamping mechanisms.

[0006] The outer peripheral wall of the shape control component is provided with a plurality of first connecting holes, and the pressing plate is provided with a plurality of second connecting holes, wherein the first connecting holes and the second connecting holes are provided correspondingly.

[0007] The turntable platform has multiple mounting brackets at equal intervals on its upper surface. Each mounting bracket corresponds to one of the elbow clamping mechanisms. The elbow clamping mechanisms are detachably mounted on the mounting brackets, and the mounting brackets are detachably connected to the turntable platform.

[0008] The mounting bracket is L-shaped; the mounting bracket includes a horizontal connecting section and a vertical connecting section mounted on the horizontal connecting section, the elbow clamp mechanism is mounted on one side of the vertical connecting section, and the horizontal connecting section is detachably connected to the turntable platform.

[0009] The horizontal connecting section is provided with multiple first mounting holes, the vertical connecting section is provided with multiple second mounting holes, and the turntable platform is provided with multiple third mounting holes, with the first mounting holes and the third mounting holes corresponding to each other.

[0010] A heating block is provided inside the fixed core.

[0011] The beneficial effects of this utility model are:

[0012] In operation, this invention uses a shape control component installed on the outer periphery of a fixed core. Cut NiTi tubes are sequentially placed into the shape-limiting grooves of the shape control component, while pressure plates are sequentially attached to the outer wall of the component. Each pressure plate is pre-fixed using a corresponding elbow clamp mechanism before being locked to prevent loosening. After all pressure plates are installed, the fixed core is heated to shape the NiTi tube within the shape-limiting groove. This novel structure, using a segmented, surrounding method to mold the NiTi tube into the shape-limiting groove, avoids damage to the NiTi tube during shaping and improves product yield and quality. The segmented pre-fixation of the pressure plates with elbow clamps prevents NiTi tube ejection, reducing damage to the tube and potential operator injury. Furthermore, it increases operator efficiency, saving time and improving the production efficiency of NiTi tubes for heart valve annuli. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the shaping device for a NiTi tube used in heart valve annuli according to the present invention.

[0014] exist Figure 1 The reference numerals in the figures include:

[0015] 1. Base; 2. Turntable platform; 3. Fixed core; 4. Elbow clamp mechanism; 5. Shape control component; 6. Shape limiting groove; 7. Pressing plate; 8. First connecting hole; 9. Second connecting hole; 10. Mounting bracket; 11. Horizontal connecting section; 12. Vertical connecting section; 13. First mounting hole; 14. Second mounting hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. It is understood that the accompanying drawings are provided for reference and illustration only and are not intended to limit the present utility model. The connection relationships shown in the drawings are only for clear description and do not limit the connection method.

[0017] 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 there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; or as a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0018] It should also be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] like Figure 1The device shown is a shaping device for a NiTi tube for heart valve annuli. It includes a base 1, a turntable platform 2 rotatably mounted on the base 1, a fixed core 3 mounted on the middle of the turntable platform 2, and multiple elbow clamping mechanisms 4. The multiple elbow clamping mechanisms 4 are arranged at equal intervals around the upper end face of the turntable platform 2 and are located on the outer periphery of the fixed core 3. A shape control member 5 is sleeved on the outer periphery of the fixed core 3. A shape limiting groove 6 is provided around the outer periphery of the shape control member 5. Multiple pressure plates 7 are mounted on the outer periphery of the shape control member 5. The pressure plates 7 are detachably connected to the shape control member 5. The pressure plates 7 are arranged in a one-to-one correspondence with the elbow clamping mechanisms 4. A heating block is provided inside the fixed core 3.

[0020] Specifically, in operation, the shape control component 5 is installed on the outer periphery of the fixed core 3. The cut NiTi tubes are sequentially placed into the shape limiting grooves 6 of the shape control component 5, and pressure plates 7 are sequentially attached to the outer periphery of the shape control component 5. Each pressure plate 7 is pre-fixed using the corresponding elbow clamp mechanism 4, and then the pressure plate 7 is locked to prevent it from loosening. After all pressure plates 7 are installed, the fixed core 3 is heated to shape the NiTi tubes within the shape limiting grooves 6. This invention has a novel structure. By using a segmented, surrounding method to mold the NiTi tubes into the shape limiting grooves 6 of the shape control component 5, it avoids damage to the NiTi tubes during shaping and improves the product's pass rate and quality. The segmented pre-fixation of the pressure plates 7 by the elbow clamp prevents the NiTi tubes from popping out, reducing damage to the NiTi tubes and the risk of injury to the operator. At the same time, it improves the operator's molding efficiency, saving time and increasing the production efficiency of NiTi tubes for heart valve annuli.

[0021] In this embodiment, since the turntable platform 2 is rotatably mounted on the base 1, the turntable platform 2 can rotate, which makes it convenient for operators to adjust the angle and direction during the mold assembly process, reducing the difficulty of operation and improving production efficiency.

[0022] In this embodiment, the outer peripheral wall of the shape control member 5 is further provided with a plurality of first connecting holes 8, and the pressure plate 7 is further provided with a plurality of second connecting holes 9, with the first connecting holes 8 and the second connecting holes 9 corresponding to each other. Specifically, the first connecting holes 8 and the second connecting holes 9 can be screw holes, and screws are used to connect to the first connecting holes 8 and the second connecting holes 9, thereby realizing the connection and locking between the pressure plate 7 and the shape control member 5.

[0023] In this embodiment, the upper surface of the turntable platform 2 is provided with multiple mounting brackets 10 at equal intervals. Each mounting bracket 10 corresponds to one of the elbow clamping mechanisms 4, and the elbow clamping mechanisms 4 are detachably mounted on the mounting brackets 10. The mounting brackets 10 are detachably connected to the turntable platform 2. The mounting brackets 10 are L-shaped and include a horizontal connecting section 11 and a vertical connecting section 12 mounted on the horizontal connecting section 11. The elbow clamping mechanism 4 is mounted on one side of the vertical connecting section 12, and the horizontal connecting section 11 is detachably connected to the turntable platform 2. The horizontal connecting section 11 has multiple first mounting holes 13, the vertical connecting section 12 has multiple second mounting holes 14, and the turntable platform 2 has multiple third mounting holes, with the first mounting holes 13 corresponding to the third mounting holes. Specifically, the mounting bracket 10 can be connected to the first mounting hole 13 and the third mounting hole by bolts, so as to realize the assembly and disassembly between the turntable platform 2 and the horizontal connecting section 11, which is convenient for assembly; at the same time, with the cooperation of the vertical connecting section 12 and the second mounting hole 14, the elbow clamp mechanism 4 can be installed and disassembled, which is convenient for replacement.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A shaping device for a NiTi tube for heart valve annuloplasty, characterized in that: The device includes a base, a turntable platform rotatably mounted on the base, a fixed core mounted on the center of the turntable platform, and multiple elbow clamping mechanisms. The multiple elbow clamping mechanisms are arranged at equal intervals around the upper surface of the turntable platform. The multiple elbow clamping mechanisms are located on the outer periphery of the fixed core. A shape control component is sleeved on the outer periphery of the fixed core. The outer peripheral wall of the shape control component is provided with a shape limiting groove. Multiple pressure plates are installed on the outer peripheral wall of the shape control component along its circumference. The pressure plates are detachably connected to the shape control component. The pressure plates are arranged in a one-to-one correspondence with the elbow clamping mechanisms.

2. The shaping device for a NiTi tube for heart valve annuloplasty according to claim 1, characterized in that: The outer peripheral wall of the shape control component is also provided with a plurality of first connecting holes, and the pressing plate is also provided with a plurality of second connecting holes, wherein the first connecting holes and the second connecting holes are provided correspondingly.

3. The shaping device for a NiTi tube for heart valve annuloplasty according to claim 1, characterized in that: The upper surface of the turntable platform is provided with multiple mounting brackets at equal intervals. Each mounting bracket corresponds to one of the elbow clamping mechanisms. The elbow clamping mechanisms are detachably mounted on the mounting brackets, and the mounting brackets are detachably connected to the turntable platform.

4. The shaping device for a NiTi tube for a heart valve annuloplasty ring according to claim 3, characterized in that: The mounting bracket is L-shaped; the mounting bracket includes a horizontal connecting section and a vertical connecting section mounted on the horizontal connecting section, the elbow clamping mechanism is mounted on one side of the vertical connecting section, and the horizontal connecting section is detachably connected to the turntable platform.

5. The shaping device for a NiTi tube for a heart valve annuloplasty ring according to claim 4, characterized in that: The horizontal connecting section is provided with a plurality of first mounting holes, the vertical connecting section is provided with a plurality of second mounting holes, and the turntable platform is provided with a plurality of third mounting holes, wherein the first mounting holes and the third mounting holes are provided correspondingly.

6. The shaping device for a NiTi tube for heart valve annuloplasty according to claim 1, characterized in that: A heating block is provided inside the fixed core.

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