Preparation method and processing equipment of degradable magnesium alloy suture

Abstract

A biodegradable magnesium alloy suture preparation and processing equipment includes a raw material initial processing component, a heat treatment device, a hot extrusion device, and a wire drawing component arranged sequentially along the production line. The raw material initial processing component consists of a processing table, a mounting plate, a fixing mechanism, a moving plate, a telescopic cylinder, and a moving grinding mechanism. The mounting plate is fixedly connected to the processing table, and the mounting plate is equipped with the fixing mechanism. A telescopic cylinder is installed on one side of the processing table, and the telescopic end of the telescopic cylinder is connected to the moving plate. The moving plate is equipped with the moving grinding mechanism. The wire drawing component includes a machine chamber and a wire feeding unit, a first drawing unit, a first processing unit, a wire drawing intermediate frequency conversion unit, a second drawing unit, a second processing unit, and a wire take-up unit arranged sequentially along the production line inside the machine chamber. The wire feeding unit feeds the wire, and the wire feeding, drawing, and take-up speeds are controlled by a frequency converter to ensure uniform wire drawing, thus solving the problem of unstable wire take-up control in the existing wire drawing process.

Description

Technical Field

[0001] This invention relates to the field of biodegradable magnesium alloy suture preparation and processing technology, and in particular to a method and processing equipment for preparing biodegradable magnesium alloy sutures. Background Technology

[0002] Surgical sutures are an essential medical material used in surgery to close surgical incisions or wounds. Traditional surgical sutures are mainly made of natural materials such as silk, cotton, and sheep intestines, as well as artificial materials such as polyamide and polypropylene. However, these materials have some drawbacks, such as susceptibility to infection, biodegradability, and mechanical properties. With the development of in vivo repair and minimally invasive techniques as trends in surgical medicine, absorbable sutures are the most effective method for treating internal organs, orthopedics, gastroenterology, ophthalmology, and cosmetic procedures. Biodegradable magnesium alloy sutures represent a new generation of sutures. These biodegradable magnesium alloy materials exhibit no biological reaction, high biocompatibility and sterilization properties, as well as high strength, good plasticity, and uniform corrosion resistance, making them a new generation of medical sutures.

[0003] The preparation process of magnesium alloy suture involves melting, hot extrusion, and warm drawing to produce fine threads from raw materials. High precision and drawing stability are required during the preparation process. However, current methods are difficult to control during drawing and winding, resulting in complex operations and unstable control during synchronous and constant tension winding, leading to uneven drawing and affecting product quality. Furthermore, the surface quality of currently prepared magnesium alloy threads is poor. Therefore, a biodegradable magnesium alloy suture preparation method and processing equipment are needed to address these issues. Summary of the Invention

[0004] In view of the above-mentioned technical problems, the present invention provides a method and equipment for preparing biodegradable magnesium alloy sutures, which solves the problems that the drawing and winding processes are difficult to control in the current preparation process, resulting in uneven drawing and poor surface quality of the finished products.

[0005] The present invention provides a biodegradable magnesium alloy suture preparation and processing equipment, comprising a raw material initial processing component, a heat treatment device, a hot extrusion device, and a wire drawing component arranged sequentially along a production line. The raw material initial processing component consists of a processing table, a mounting plate, a fixing mechanism, a moving plate, a telescopic cylinder, and a moving grinding mechanism. The mounting plate is fixedly connected to the processing table, and the mounting plate is equipped with the fixing mechanism. A telescopic cylinder is mounted on one side of the processing table, and the telescopic end of the telescopic cylinder is connected to the moving plate. The moving plate is equipped with the moving grinding mechanism. The wire drawing component includes a machine chamber and, within the machine chamber, a wire feeding unit, a first drawing unit, a first processing unit, a wire drawing intermediate frequency conversion unit, a second drawing unit, a second processing unit, a wire take-up unit, and a wire feeding unit arranged sequentially along the production line.

[0006] The fixing mechanism includes a drive motor, a turntable, a bidirectional lead screw, a knob, a moving rod, and a fixing block. The drive motor is mounted on a mounting plate, and its conveying end is connected to the turntable via a connecting shaft. The bidirectional lead screw is mounted in a groove on the turntable via a bearing. One end of the bidirectional lead screw passes through the outer edge of the turntable and is connected to the knob. The two ends of the bidirectional lead screw are threadedly connected to the moving rod, and the fixing block is connected to the moving rod.

[0007] The movable grinding mechanism consists of a motor, a lead screw, a mounting bracket, a grinding motor, and a grinding disc. The motor is mounted on one side of the movable plate, and its output end is connected to one end of the lead screw. The other end of the lead screw is mounted on the wall of a movable groove on the movable plate via a bearing. The lead screw is threadedly connected to the mounting bracket. Both ends of the mounting bracket are slidably connected to T-slots located on both sides of the movable groove opening on the movable plate. The grinding motor is mounted on the mounting bracket and is connected to the grinding disc.

[0008] The wire feeding unit consists of a wire feeding motor, a wire feeding frequency converter, a wire feeding gearbox, and a wire feeding reel. The output end of the wire feeding motor is connected to the wire feeding reel sequentially through the wire feeding gearbox and the wire feeding frequency converter. The first drawing unit consists of a first mounting base, a first drawing machine, a heating and greasing machine A, and a second drawing machine. The first drawing machine is mounted on the first mounting base, and the heating and greasing machine A is mounted on the first mounting base next to the first drawing machine. The second drawing machine is located next to the heating and greasing machine A. The first processing unit consists of a first alkaline washing tank, a first acid washing tank, a first clear water tank, and a first air drying area. The first alkaline washing tank, the first acid washing tank, the first clear water tank, and the first air drying area are sequentially arranged in the machine room next to the first mounting base.

[0009] The intermediate frequency conversion unit for wire drawing includes a wire drawing wheel, a wire drawing frequency converter, a wire drawing gearbox, and a wire drawing motor. The wire drawing wheel is installed in the machine room, one side of which is connected to the wire drawing frequency converter. The wire drawing frequency converter is connected to the wire drawing gearbox, which is connected to the output end of the wire drawing motor.

[0010] The second drawing unit consists of a second mounting base, a third drawing machine, a heating and greasing machine B, and a fourth drawing machine. The third drawing machine is mounted on the second mounting base, and the heating and greasing machine B is mounted on the second mounting base next to the third drawing machine. The fourth drawing machine is mounted next to the heating and greasing machine B. The second processing unit includes a second alkaline washing tank, a second acid washing tank, a second clear water tank, and a second air drying area. The second alkaline washing tank, the second acid washing tank, the second clear water tank, and the second air drying area are sequentially arranged in the machine room next to the second mounting base. The take-up unit consists of a take-up motor, a take-up reduction gearbox, a take-up frequency converter, and a take-up reel. The output end of the take-up motor is connected to the take-up reel sequentially through the take-up reduction gearbox and the take-up frequency converter.

[0011] Furthermore, the wire is subjected to alkaline washing in the first alkaline washing tank and the second alkaline washing tank under the action of multiple guide rollers, acid washing in the first acid washing tank and the second acid washing tank, and cleaning in the first clear water tank and the second clear water tank.

[0012] Furthermore, the guide holes at both ends of the movable plate are connected by guide posts, which are mounted on the processing table.

[0013] Furthermore, blowers are used to dry the wires in both the first and second drying zones.

[0014] Furthermore, a wire channel is provided on one side wall of the machine room for the wire to enter the machine room for drawing.

[0015] A method for preparing biodegradable magnesium alloy sutures, the specific steps of which are as follows:

[0016] The first step is to process the magnesium ingots into round magnesium billets using a raw material pre-processing component;

[0017] The second step involves placing the round magnesium billet from the first step into a heat treatment device for heating to the set heat treatment temperature and holding it for a given time.

[0018] The third step is to place the heat-treated magnesium billet into the mold in the hot extrusion device and extrude it into magnesium material with a certain wire diameter.

[0019] The fourth step involves placing the prepared magnesium material into a wire drawing assembly and drawing it into magnesium wire of the target diameter. The temperature during the drawing process is controlled within the required temperature range.

[0020] Specifically, in step three, the mold used in the hot extrusion device is placed in a heat treatment furnace and preheated at a set temperature.

[0021] The beneficial effects of this invention are:

[0022] This invention incorporates frequency converters in the wire feeding unit, the intermediate frequency conversion unit for wire drawing, and the wire take-up unit. By controlling the speed of wire feeding, wire drawing, and wire take-up through the frequency converters, uniform wire drawing can be achieved, thus solving the problem of unstable synchronous and constant tension wire take-up control in the existing wire drawing process.

[0023] During the drawing process of magnesium materials, the heating and greasing machine can raise the temperature and soften the wire, improve the plasticity of the magnesium alloy wire, and achieve a larger deformation. At the same time, after the wire is drawn, the alkaline washing, acid washing and water washing process can clean the impurities on the surface of the wire, making it easier to draw the wire. On the other hand, it can also cool the wire after it is demolded, and the deformed structure can be quickly fixed, retaining the work hardening of the wire, improving the strength of the drawn wire, avoiding wire breakage and failure, and improving processing efficiency. Attached Figure Description

[0024] Figure 1 This is a front view schematic diagram of the raw material initial processing component structure of a biodegradable magnesium alloy suture preparation and processing equipment according to the present invention;

[0025] Figure 2 This is a schematic diagram of the raw material initial processing structure components of a biodegradable magnesium alloy suture preparation and processing equipment according to the present invention;

[0026] Figure 3 This is a longitudinal cross-sectional schematic diagram of the wire drawing component structure of a biodegradable magnesium alloy suture preparation and processing equipment according to the present invention;

[0027] Figure 4 This is a schematic cross-sectional view of the wire drawing component structure of a biodegradable magnesium alloy suture preparation and processing equipment according to the present invention;

[0028] As shown in the figure: 100. Magnesium material, 1. Processing table, 2. Mounting plate, 31. Drive motor, 32. Turntable, 33. Knob, 34. Bidirectional lead screw, 35. Moving rod, 36. Fixed clamp, 4. Moving plate, 41. T-slot, 5. Telescopic cylinder, 61. Motor, 62. Lead screw, 63. Mounting bracket, 65. Grinding motor, 66. Grinding disc, 7. Machine chamber, 70. Wire channel, 711. Wire feeding reel, 712. Wire feeding motor, 713. Wire feeding gearbox, 714. Wire feeding frequency converter, 721. First mounting base, 722. First drawing machine, 723. Heating and greasing machine A, 7 24. Second drawing machine; 731. First alkaline washing tank; 732. First pickling tank; 733. First clear water tank; 741. Drawing wheel; 742. Drawing motor; 743. Drawing gearbox; 744. Drawing frequency converter; 751. Second mounting base; 752. Third drawing machine; 753. Heating and greasing machine B; 754. Fourth drawing machine; 761. Second alkaline washing tank; 762. Second pickling tank; 763. Second clear water tank; 771. Take-up reel; 772. Take-up motor; 773. Take-up gearbox; 774. Take-up frequency converter; 781. Blower; 791. Guide roller. Detailed Implementation

[0029] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Example 1

[0033] This invention proposes a biodegradable magnesium alloy suture preparation and processing equipment, comprising raw material pre-processing components (such as...) arranged sequentially along the production line. Figure 1 and Figure 2 Heat treatment apparatus (not shown), hot extrusion apparatus (not shown), wire drawing assembly (such as...) Figure 3 and 4 The preparation and processing equipment designed in this invention is electrically connected to an external control box, and the operation of each electronic component is controlled by a controller inside the control box.

[0034] In the raw material primary processing assembly, the processing table 1 is fixedly connected to the mounting plate 2. A mounting and fixing mechanism is installed on the mounting plate 2. A drive motor 31 in the fixing mechanism is mounted on the mounting plate 2. The conveying end of the drive motor 31 is connected to a turntable 32 via a connecting shaft. A bidirectional lead screw 33 is installed in a groove on the turntable 32 via bearings. The threads on both sides of the bidirectional lead screw 33 are in opposite directions. One end of the bidirectional lead screw 33 passes through the outer edge of the turntable 32 and is connected to a knob 34. Moving rods 35 are threaded to both ends of the bidirectional lead screw 33, and fixed clamping blocks 36 are connected to the moving rods 35.

[0035] A telescopic cylinder 5 is installed on one side of the processing table 1. The telescopic end of the telescopic cylinder 5 is connected to the moving plate 4. Guide columns 51 are connected through guide holes at both ends of the moving plate 4 and are installed on the processing table 1 to guide the movement of the moving plate 4 when the telescopic cylinder 5 is activated. A moving grinding mechanism is installed on the moving plate 4. The moving grinding mechanism consists of a motor 61, a lead screw 62, a mounting frame 63, a grinding motor 64, and a grinding disc 65. The motor 61 is installed on one side of the moving plate 4. The output end of the motor 61 is connected to one end of the lead screw 62. The other end of the lead screw 62 is installed on the wall of the moving groove on the moving plate 4 through a bearing. The lead screw 62 is threadedly connected to the mounting frame 63. Both ends of the mounting frame 63 are slidably connected to T-slots 41 located on both sides of the moving groove opening on the moving plate 4. The grinding motor 64 is installed on the mounting frame 4 and is connected to the grinding disc 65. The grinding motor 64 drives the grinding disc 65 to perform grinding.

[0036] In the first step of a method for preparing biodegradable magnesium alloy sutures, magnesium ingots are formed into round magnesium blanks using a raw material pre-processing assembly. During pre-processing, the magnesium ingot is placed on a turntable 32 between two fixed clamping blocks 36. By rotating a knob 33, the moving rods 35 connected to the threads on both sides of the bidirectional lead screw 34 are moved axially, controlling the two fixed clamping blocks 36 to move towards the magnesium ingot, thus clamping and fixing the magnesium ingot material. Subsequently, the drive motor 31 is started, controlling the turntable 32 to rotate the magnesium ingot material. At the same time, the telescopic cylinder 5 is activated to control the moving plate 4 to move forward, and the grinding disc 65 grinds the magnesium ingot material. While grinding, the grinding disc 65 moves laterally back and forth under the rotation of the lead screw 62 driven by the motor 61, grinding the magnesium ingot material. This can remove the oxidized oxide layer on the surface of the magnesium ingot material, improving the quality of the subsequent magnesium material production and processing into sutures.

[0037] After the initial processing of raw materials, the round magnesium ingots are placed into a heat treatment device for heating to a set temperature and holding for a given time. The heat-treated magnesium ingots are then placed into a die in a hot extrusion device and extruded into magnesium material of a specific wire diameter. The die used in the hot extrusion device is placed in a heat treatment furnace and preheated at a set temperature. The magnesium material with a specific wire diameter after hot extrusion is conveyed to a wire drawing assembly. The wire drawing assembly includes a machine chamber 7 and, within the machine chamber 7, a wire feeding unit, a first drawing unit, a first processing unit, a wire drawing intermediate frequency conversion unit, a second drawing unit, a second processing unit, and a take-up unit, arranged sequentially along the production line.

[0038] Magnesium material 100 enters the machine room 7 through the wire passage 70 provided on the machine room 7. The wire feeding unit consists of a wire feeding motor 712, a wire feeding frequency converter 714, a wire feeding reduction gearbox 713, and a wire feeding reel 711. The output end of the wire feeding motor 712 is connected to the wire feeding reel 711 through the wire feeding reduction gearbox 713 and the wire feeding frequency converter 714 in sequence. The wire feeding motor 712 controls the wire feeding speed of magnesium material 100. Magnesium material 100 enters the first drawing unit. The first drawing unit consists of a first mounting base 721, a first drawing machine 722, a heating and greasing machine A (723), and a second drawing machine. The first processing unit consists of a first mounting base 721, a first drawing machine 722, and a second drawing machine 724. A heating and greasing machine A (723) is installed between the first drawing machine 722 and the second drawing machine 724. The production line of the first processing unit is sequentially composed of a first alkaline washing tank 731, a first acid washing tank 732, a first clear water tank 733, and a first air drying area. The second drawing unit consists of a second mounting base 751, a third drawing machine 752, a heating and greasing machine B (753), and a fourth drawing machine 754. The third drawing machine 752 is installed on the second mounting base 751. 52 and the fourth drawing machine 754, a heating and greasing machine B (753) is installed between the first drawing machine 752 and the second drawing machine 754. The second processing unit in the machine room 7 includes a second alkaline washing tank 761, a second acid washing tank 762, a second clear water tank 763 and a second air drying area, which are installed in the following order: production sequence. Magnesium material 100 is alkaline washed in the first alkaline washing tank 731 and the second alkaline washing tank 761 under the action of multiple guide rollers 791, acid washed in the first acid washing tank 732 and the second acid washing tank 762, and cleaned in the first clear water tank 733 and the second clear water tank 763. The washing process involves two drying zones, where blowers (781) are used to dry the washed wire. During the drawing process, the heating and greasing machine softens the wire, increasing its plasticity and allowing for greater deformation. Simultaneously, the alkaline washing, acid washing, and water washing processes after drawing remove impurities from the wire surface, facilitating drawing. Furthermore, the cooling process after demolding allows for rapid fixation of the deformed structure, preserving work hardening and improving the wire's strength after drawing. This prevents breakage and improves processing efficiency.

[0039] The intermediate frequency conversion unit for wire drawing includes a wire drawing wheel 741, a wire drawing frequency converter 744, a wire drawing gearbox 743, and a wire drawing motor 742. The wire drawing wheel 741 is mounted on the mounting wall inside the machine room 7. One side of the wire drawing wheel 741 is connected to the wire drawing frequency converter 744, which is connected to the wire drawing gearbox 743. The wire drawing gearbox 743 is connected to the output end of the wire drawing motor 742. The intermediate frequency conversion unit for wire drawing is located between the first drawing unit and the second drawing unit, and plays a role in controlling the speed and providing support for the drawing of magnesium material.

[0040] The final take-up unit consists of a take-up motor 772, a take-up reduction gearbox 773, a take-up frequency converter 774, and a take-up reel 771. The output end of the take-up motor 772 is connected to the take-up reel 771 in sequence through the take-up reduction gearbox 773 and the take-up frequency converter 774. In this invention, frequency converters are provided in the pay-off unit, the intermediate frequency converter unit for wire drawing, and the take-up unit. By controlling the speed of pay-off, wire drawing, and take-up through the frequency converter, the wire drawing can be made uniform, thus solving the problem of unstable synchronous and constant tension take-up control in the existing wire drawing process.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. The various components mentioned in this invention are common technologies in the existing field. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A biodegradable magnesium alloy suture preparation and processing equipment, comprising a raw material initial processing component, a heat treatment device, a hot extrusion device, and a wire drawing component arranged sequentially along a production line. The raw material initial processing component consists of a processing table, a mounting plate, a fixing mechanism, a moving plate, a telescopic cylinder, and a moving grinding mechanism. The mounting plate is fixedly connected to the processing table, and the mounting plate is provided with a mounting fixing mechanism. A telescopic cylinder is installed on one side of the processing table, and the telescopic end of the telescopic cylinder is connected to the moving plate. The moving plate is provided with a moving grinding mechanism. The wire drawing component includes a machine chamber and a wire feeding unit, a first drawing unit, a first processing unit, a wire drawing intermediate frequency conversion unit, a second drawing unit, a second processing unit, a wire take-up unit, and a wire feeding unit arranged sequentially along the production line within the machine chamber.

2. The biodegradable magnesium alloy suture preparation and processing equipment according to claim 1, characterized in that... The fixing mechanism includes a drive motor, a turntable, a bidirectional lead screw, a knob, a moving rod, and a fixing block. The drive motor is mounted on a mounting plate, and the conveying end of the drive motor is connected to the turntable via a connecting shaft. The bidirectional lead screw is installed in a groove on the turntable via a bearing. One end of the bidirectional lead screw passes through the outer edge of the turntable and is connected to the knob. The two ends of the bidirectional lead screw are respectively threaded to the moving rod, and the fixing block is connected to the moving rod.

3. The biodegradable magnesium alloy suture preparation and processing equipment according to claim 1, characterized in that... The movable grinding mechanism consists of a motor, a lead screw, a mounting frame, a grinding motor, and a grinding disc. The motor is mounted on one side of the movable plate, and the output end of the motor is connected to one end of the lead screw. The other end of the lead screw is mounted on the wall of the movable groove on the movable plate via a bearing. The lead screw is threadedly connected to the mounting frame. Both ends of the mounting frame are slidably connected to T-slots located on both sides of the movable groove opening on the movable plate. The grinding motor is mounted on the mounting frame and is connected to the grinding disc.

4. The biodegradable magnesium alloy suture preparation and processing equipment according to claim 1, characterized in that... The wire feeding unit consists of a wire feeding motor, a wire feeding frequency converter, a wire feeding gearbox, and a wire feeding reel. The output end of the wire feeding motor is connected to the wire feeding reel in sequence through the wire feeding gearbox and the wire feeding frequency converter. The first drawing unit consists of a first mounting base, a first drawing machine, a heating and greasing machine A, and a second drawing machine. The first drawing machine is installed on the first mounting base, and the heating and greasing machine A is installed on the first mounting base next to the first drawing machine. The second drawing machine is installed next to the heating and greasing machine A. The first processing unit consists of a first alkaline washing tank, a first acid washing tank, a first clear water tank, and a first air drying area. The first alkaline washing tank, the first acid washing tank, the first clear water tank, and the first air drying area are sequentially installed in the machine room next to the first mounting base.

5. The biodegradable magnesium alloy suture preparation and processing equipment according to claim 1, characterized in that... The intermediate frequency conversion unit for wire drawing includes a wire drawing wheel, a wire drawing frequency converter, a wire drawing gearbox, and a wire drawing motor. The wire drawing wheel is installed in the machine room. One side of the wire drawing wheel is connected to the wire drawing frequency converter. The wire drawing frequency converter is connected to the wire drawing gearbox. The wire drawing gearbox is connected to the output end of the wire drawing motor.

6. The biodegradable magnesium alloy suture preparation and processing equipment according to claim 1, characterized in that... The second drawing unit consists of a second mounting base, a third drawing machine, a heating and greasing machine B, and a fourth drawing machine. The third drawing machine is mounted on the second mounting base, and the heating and greasing machine B is mounted on the second mounting base next to the third drawing machine. The fourth drawing machine is mounted next to the heating and greasing machine B. The second processing unit includes a second alkaline washing tank, a second acid washing tank, a second clear water tank, and a second air drying area. The second alkaline washing tank, the second acid washing tank, the second clear water tank, and the second air drying area are sequentially arranged in the machine room next to the second mounting base. The take-up unit consists of a take-up motor, a take-up reduction gearbox, a take-up frequency converter, and a take-up reel. The output end of the take-up motor is connected to the take-up reel sequentially through the take-up reduction gearbox and the take-up frequency converter.

7. The biodegradable magnesium alloy suture preparation and processing equipment according to claim 4 or 6, characterized in that... The wire is subjected to alkaline washing in the first alkaline washing tank and the second alkaline washing tank under the action of multiple guide rollers, acid washing in the first acid washing tank, and cleaning in the first and second clean water tanks.

8. A method for preparing a biodegradable magnesium alloy suture, comprising the following steps: The first step is to process the magnesium ingots into round magnesium billets using a raw material pre-processing component; The second step involves placing the round magnesium billet from the first step into a heat treatment device for heating to the set heat treatment temperature and holding it for a given time. The third step is to place the heat-treated magnesium billet into the mold in the hot extrusion device and extrude it into magnesium material with a certain wire diameter. The fourth step is to place the prepared magnesium material into the wire drawing assembly for drawing into magnesium wire of the target diameter, and control the temperature within the required temperature range during the drawing process.

9. The method for preparing a biodegradable magnesium alloy suture according to claim 8, characterized in that... In step three, the mold used in the hot extrusion device is placed in a heat treatment furnace and preheated at a set temperature.

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