Barbed suture cutting device

Abstract

The utility model discloses a barb suture cutting device, and relates to the technical field of medical sutures, the barb suture cutting device comprises a positioning mechanism and a cutting mechanism, the positioning mechanism is used for positioning a suture to be cut; the cutting mechanism is arranged beside the positioning mechanism and comprises a rotary driving structure and a cutter driving structure, the driving end of the rotary driving structure is connected with the cutter driving structure and used for adjusting the angle of the cutter driving structure relative to the sewing thread, and the cutter driving structure is used for cutting the sewing thread. The production efficiency and the sewing quality of the sewing thread can be improved.

Description

Technical Field

[0001] This application relates to the field of medical suture technology, and in particular to a barbed suture cutting device. Background Technology

[0002] In the field of medical suturing, barbed sutures are widely used due to their advantages such as eliminating the need for knotting and reducing tissue damage and infection risks. However, the traditional process for manufacturing barbed sutures has significant drawbacks. Traditional machining for barbs often utilizes a stamping die in conjunction with a simple linear motion mechanism. Specifically, by pre-fabricating a stamping die of a specific shape, the die, driven by the linear motion mechanism, presses the suture to attempt to cut out the barb shape. Traditional methods struggle to precisely control the angle at which the cutter enters the suture, resulting in significant deviations in the angle and shape of the cut barbs, leading to poor consistency. This not only affects the gripping force and stability of the barbed suture during suturing but also reduces the quality of the suture. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a barbed suture cutting device that can improve suture production efficiency and stitch quality.

[0004] This application provides a barbed suture cutting device, comprising:

[0005] A positioning mechanism is used to position the suture to be cut;

[0006] A cutting mechanism is provided on the side of the positioning mechanism, including a rotary drive structure and a cutter drive structure. The drive end of the rotary drive structure is connected to the cutter drive structure and is used to adjust the angle of the cutter drive structure relative to the suture. The cutter drive structure is used to cut the suture.

[0007] The barbed suture cutting device according to the embodiments of this application has at least the following beneficial effects: When the barbed suture cutting device is working, the positioning mechanism first positions the surgical suture to be cut, and then the cutting mechanism starts working, with the cutter drive structure operating in cooperation with the rotary drive structure. Before cutting into the suture, the rotary drive structure precisely adjusts the angle of the cutter drive structure relative to the suture according to the preset angle requirements. After the cutter drive structure cuts into the suture at the precisely adjusted angle, the rotary drive structure rotates the cutter drive structure slightly, causing the cutter drive structure to flip up the outer side of the surgical suture, thereby forming a barb. In terms of manufacturing cost and efficiency, the barbed suture cutting device provided by this application does not require the production of multiple sets of molds for different barb angles as in traditional methods, greatly reducing manufacturing costs and improving production efficiency; in terms of product quality, it achieves precise control of the barb angle and shape, ensuring the consistency of the barb shape, greatly improving the gripping force and stability of the barbed suture during suturing, and improving the suturing quality.

[0008] According to some embodiments of this application, the cutting mechanism further includes a support plate, the rotary drive structure includes a first drive member and a turntable assembly, the turntable assembly includes a fixed part, a transmission part and a rotating part, the fixed part is disposed on the side of the support plate near the positioning mechanism, the rotating part is rotatably disposed on the fixed part, the transmission part is disposed in the fixed part and connected to the drive end of the first drive member, the first drive member is used to drive the transmission part to drive the rotating part to rotate, and the cutter drive structure is disposed on the rotating part.

[0009] According to some embodiments of this application, the cutter drive structure includes a first connecting plate, a second drive member, and a cutter assembly. One side of the first connecting plate is connected to the rotating part, the second drive member is fixed to the other side of the first connecting plate, and the drive end of the second drive member is connected to the cutter assembly. The second drive member is used to drive the cutter assembly to move closer to or away from the suture.

[0010] According to some embodiments of this application, the cutter assembly includes a second connecting plate, a mounting block, and a blade. One side of the second connecting plate is connected to the driving end of the second driving member. The mounting block is disposed on the other side of the second connecting plate. The blade is detachably disposed on the end of the mounting block away from the second connecting plate. When the blade is fully inserted into the seam, the tip of the blade coincides with the rotation axis of the rotating part.

[0011] According to some embodiments of this application, the cutting mechanism further includes a fine-tuning structure disposed on the side of the positioning mechanism, and the support plate is disposed on the adjustment part of the fine-tuning structure. The fine-tuning structure is used to adjust the relative position between the cutting mechanism and the positioning mechanism.

[0012] According to some embodiments of this application, the fine-tuning structure includes a fixed plate, an adjusting plate, a return spring, and a fine-tuning rotating member. The adjusting plate is slidably connected to the fixed plate. A fixed block and a push block are respectively provided on the same side of the fixed plate and the adjusting plate. The fine-tuning rotating member passes through the fixed block. The movable rod of the fine-tuning rotating member abuts against the push block to push the adjusting plate to move in the direction of the positioning mechanism. The return spring is disposed between the fixed plate and the adjusting plate, and its two ends abut against the fixed plate and the adjusting plate respectively.

[0013] According to some embodiments of this application, the positioning mechanism includes a first base plate and a top column, the top column being disposed on the first base plate, and the top column being used to abut against the position to be cut of the suture, so as to position and support the position to be cut of the suture.

[0014] According to some embodiments of this application, the positioning mechanism further includes an upward driving structure and a micro-lifting driving structure. The first base plate is disposed at the driving end of the upward driving structure. The first base plate is provided with fixed clamping columns on both sides of the top column. The upward driving structure is used to drive the first base plate to move so that the fixed clamping column clamps and positions the suture. The top column is disposed on the first base plate through the micro-lifting driving structure. The micro-lifting driving structure is used to drive the top column to rise so as to lift the suture clamped by the fixed clamping column.

[0015] According to some embodiments of this application, an image monitoring mechanism is also included, which includes an image acquisition module and a reflective prism assembly. The reflective prism assembly is disposed on the first base plate, and the image acquisition module is located above the reflective prism assembly. The reflective prism assembly is used to reflect the image of the positioning support stitch on the top column to the image acquisition module.

[0016] According to some embodiments of this application, a moving mechanism is also included, wherein the driving end of the moving mechanism is provided with a second base plate, the positioning mechanism and the cutting mechanism are disposed on the second base plate, and the moving mechanism is used to drive the positioning mechanism and the cutting mechanism to move closer to or away from the suture to be cut.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] Additional aspects and advantages of this application will become apparent and readily understood in conjunction with the following description of the embodiments, in which:

[0019] Figure 1A schematic diagram of the structure of the barbed suture cutting device provided in some embodiments of this application from one perspective;

[0020] Figure 2 This is a structural schematic diagram from another perspective of the barbed suture cutting device provided in some embodiments of this application.

[0021] The attached icons are numbered as follows:

[0022] Support plate 110; first driving component 121; fixing part 122; first connecting plate 131; second driving component 132; second connecting plate 133; mounting block 134; blade 135; fixing plate 141; fixing block 142; adjusting plate 143; push block 144; fine-tuning rotating component 145; first base plate 210; top column 220; lifting drive structure 230; image acquisition module 310; reflecting prism assembly 320; moving mechanism 400; second base plate 410. Detailed Implementation

[0023] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0024] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0025] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0026] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0027] In the field of medical suturing, barbed sutures are widely used due to their advantages such as eliminating the need for knotting and reducing tissue damage and infection risks. However, the traditional process for manufacturing barbed sutures has significant drawbacks. Traditional machining for barbs often utilizes a stamping die in conjunction with a simple linear motion mechanism. Specifically, by pre-fabricating a stamping die of a specific shape, the die, driven by the linear motion mechanism, presses the suture to attempt to cut out the barb shape. Traditional methods struggle to precisely control the angle at which the cutter enters the suture, resulting in significant deviations in the angle and shape of the cut barbs, leading to poor consistency. This not only affects the gripping force and stability of the barbed suture during suturing but also reduces the quality of the suture.

[0028] Based on this, this application provides a barbed suture cutting device to solve the above-mentioned technical problems. The technical solutions provided by this application will be described in detail below.

[0029] Reference Figure 1 and Figure 2 This application provides a barbed suture cutting device, including: a positioning mechanism and a cutting mechanism. The positioning mechanism is used to position the suture to be cut. The cutting mechanism is disposed on the side of the positioning mechanism and includes a rotary drive structure and a cutter drive structure. The drive end of the rotary drive structure is connected to the cutter drive structure and is used to adjust the angle of the cutter drive structure relative to the suture. The cutter drive structure is used to cut the suture.

[0030] When the barbed suture cutting device is in operation, the positioning mechanism first positions the surgical suture to be cut. Then, the cutting mechanism begins operation, with the cutter drive structure cooperating with the rotary drive structure. Before cutting into the suture, the rotary drive structure precisely adjusts the angle of the cutter drive structure relative to the suture according to preset angle requirements. After the cutter drive structure cuts into the suture at the precisely adjusted angle, the rotary drive structure slightly rotates the cutter drive structure, causing it to flip up the outer side of the surgical suture, thus forming a barb. In terms of manufacturing cost and efficiency, the barbed suture cutting device provided in this application eliminates the need to create multiple sets of molds for different barb angles, as is done in traditional methods, significantly reducing manufacturing costs and improving production efficiency. Regarding product quality, it achieves precise control of the barb angle and shape, ensuring the consistency of the barb shape and greatly improving the gripping force and stability of the barbed suture during suturing, thereby improving the suturing quality.

[0031] Reference Figure 1It is understood that the cutting mechanism also includes a support plate 110, and the rotary drive structure includes a first drive member 121 and a turntable assembly. The turntable assembly includes a fixed part 122, a transmission part, and a rotating part. The fixed part 122 is located on the side of the support plate 110 near the positioning mechanism. The rotating part is rotatably mounted on the fixed part 122. The transmission part is located within the fixed part 122 and connected to the drive end of the first drive member 121. The first drive member 121 drives the rotating part to rotate by driving the transmission part. The cutter drive structure is located on the rotating part. The transmission part is located within the fixed part 122 and can be a structure such as a gear set or a belt drive. The drive end of the first drive member 121 is connected to the transmission part and transmits power to the transmission part. The operation of the transmission part drives the rotating part to rotate on the fixed part 122. Since the cutter drive structure is located on the rotating part, the cutter drive structure rotates together with the rotating part to adjust the angle relative to the seam thread to meet the requirements of different barb cutting angles. The transmission unit is precisely controlled by the first driving component 121, which in turn drives the rotating part to rotate, allowing for precise adjustment of the angle of the cutting blade drive structure. Compared to traditional stamping dies where the fixed angle is difficult to change, this structure can easily achieve barb cutting at various angles, greatly improving the adaptability of the cutting device to different barb angle requirements.

[0032] Reference Figure 1 and Figure 2 It is understood that the cutter drive structure includes a first connecting plate 131, a second driving member 132, and a cutter assembly. One side of the first connecting plate 131 is connected to the rotating part, and the second driving member 132 is fixed to the other side of the first connecting plate 131. The driving end of the second driving member 132 is connected to the cutter assembly, and the second driving member 132 is used to drive the cutter assembly to move closer to or away from the seam. The first connecting plate 131 serves to connect the rotating part and the cutter assembly, and its connection to the rotating part ensures that the cutter assembly can rotate with the rotating part to achieve angle adjustment. When it is necessary to cut the seam, the driving end of the second driving member 132 pushes the cutter assembly closer to the seam. For example, the second driving member 132 is a cylinder, and the piston rod of the cylinder extends to drive the cutter assembly to move. Under the action of the second driving member 132, the cutter assembly moves towards the seam at a set speed and force to complete the cutting action. After the cutting is completed, the driving end of the second driving member 132 retracts, driving the cutter assembly away from the seam, ready for the next cut or waiting for a new operation command. The second drive unit 132 can precisely control the movement of the cutter assembly. When cutting sutures, it can accurately cut into the suture to a specified depth. Furthermore, it can flexibly adjust the cutting force and speed according to different suture materials and barb requirements, thereby improving the cutting accuracy and quality.

[0033] Continue to refer to Figure 1 and Figure 2It is understood that the cutter assembly includes a second connecting plate 133, a mounting block 134, and a blade 135. One side of the second connecting plate 133 is connected to the driving end of the second driving member 132, and the mounting block 134 is located on the other side of the second connecting plate 133. The blade 135 is detachably mounted on the end of the mounting block 134 away from the second connecting plate 133. When the blade 135 is fully inserted into the suture, the tip of the blade 135 coincides with the rotation axis of the rotating part. The detachable mounting method of the blade 135 facilitates the replacement of different types or specifications of blades 135 according to different cutting needs. Blades 135 of different shapes, sizes, and materials can be selected and mounted on the mounting block 134 according to actual cutting needs. In addition, when the blade 135 is worn, damaged, or needs to be replaced with a different type of blade 135 to adapt to different suture materials or barb shape requirements, it can be easily and quickly disassembled and replaced without the need for complex repair or replacement operations of the entire cutter assembly, thereby improving the maintenance efficiency of the equipment and reducing maintenance costs. In addition, the tip of the blade 135 coincides with the rotation axis of the rotating part. When the rotating drive structure rotates and flips the barb, the rotation center of the blade tip (i.e., the position of the blade tip axis) remains fixed relative to the seam. This avoids the downward squeezing tendency of the blade due to the offset of the rotation center during the barb flipping process, thereby preventing the seam below the blade from being pulled and damaged, protecting the integrity and strength of the seam, and improving the product's pass rate and quality stability.

[0034] Continue to refer to Figure 1 and Figure 2 It is understood that the cutting mechanism also includes a fine-tuning structure, which is located beside the positioning mechanism. The support plate 110 is mounted on the adjustment section of the fine-tuning structure. This fine-tuning structure is used to adjust the relative position between the cutting mechanism and the positioning mechanism. Due to the variety of thread specifications, the cutting position needs precise control. The fine-tuning structure allows the operator to finely adjust the position of the cutting mechanism before cutting, based on the actual condition of the thread, ensuring that the cutting blade assembly cuts in the optimal position. During equipment operation, the operator can directly adjust the cutting position in real time through the fine-tuning structure without the need for complex disassembly and reinstallation of the equipment, thus expanding the applicability of the cutting device to different thread types.

[0035] Reference Figure 1It is understood that the fine-tuning structure includes a fixed plate 141, an adjusting plate 143, a return spring, and a fine-tuning rotating component 145. The adjusting plate 143 is slidably connected to the fixed plate 141. A fixed block 142 and a push block 144 are respectively provided on the same side of the fixed plate 141 and the adjusting plate 143. The fine-tuning rotating component 145 passes through the fixed block 142, and its movable rod abuts against the push block 144, which is used to push the adjusting plate 143 to move in the direction of the positioning mechanism. The return spring is located between the fixed plate 141 and the adjusting plate 143, and its two ends abut against the fixed plate 141 and the adjusting plate 143 respectively. During fine-tuning, rotating the fine-tuning rotating component 145 causes the fine-tuning rotating component 145 passing through the fixed block 142 to rotate, and its movable rod gradually pushes the push block 144. Because the adjusting plate 143 and the fixed plate 141 are slidably connected, when the push block 144 is subjected to force, it causes the adjusting plate 143 to slide along the fixed plate 141 and move towards the positioning mechanism. This, in turn, causes the support plate 110 and the cutting mechanism mounted on the adjusting plate 143 to move, thereby adjusting the relative position of the cutting mechanism and the positioning mechanism. When it is necessary to restore the initial position or make a reverse adjustment, the external force is removed, the reset spring releases its elasticity, and pushes the adjusting plate 143 to slide away from the positioning mechanism, thereby resetting the position. The entire process is achieved by precisely controlling the moving distance of the adjusting plate 143 through fine-tuning the rotation angle of the rotating component 145, thus realizing the fine-tuning of the position of the cutting mechanism.

[0036] Reference Figure 1 and Figure 2 It is understood that the positioning mechanism includes a first base plate 210 and a top post 220. The top post 220 is mounted on the first base plate 210 and is used to abut against the position of the thread to be cut, thereby positioning and supporting the position of the thread to be cut. Before cutting the thread, the thread is placed on the first base plate 210, and the position to be cut is aligned with the top post 220. The top post 220 protrudes from the first base plate 210. After the thread is in place, the top post 220 abuts against the position of the thread to be cut. On the one hand, the top post 220 prevents the thread from moving arbitrarily in the horizontal direction, thus positioning the position of the thread to be cut; on the other hand, when the cutting mechanism cuts the thread, the top post 220 provides stable support for the position of the thread to be cut, preventing the thread from shifting, deforming, or shaking due to the cutting force, ensuring the smooth progress of the cutting process.

[0037] Continue to refer to Figure 1 and Figure 2It is understood that the positioning mechanism also includes an upward drive structure 230 and a micro-lift drive structure (not shown in the figure). The first base plate 210 is disposed at the drive end of the upward drive structure 230. The first base plate 210 is provided with fixed clamping posts on both sides of the top post 220. The upward drive structure 230 is used to drive the first base plate 210 to move so that the fixed clamping posts clamp and position the suture. The top post 220 is disposed on the first base plate 210 through the micro-lift drive structure, which is used to drive the top post 220 to rise and lift the suture clamped by the fixed clamping posts. During the preparation stage of the barbed suture cutting operation, the upward drive structure 230 is in the initial state, and the first base plate 210 together with the top post 220 disposed thereon is in a low position, which makes it convenient for the operator to place the suture on the first base plate 210. After the suture is placed, the upward drive structure 230 is activated, and its drive end begins to move upward, driving the first base plate 210 to rise synchronously. As the first base plate 210 rises, the fixed clamping posts gradually approach the suture. The fixed clamping posts at both ends of the top post 200 clamp the suture to stabilize the tension of the suture at the cutting position. Then, the top post 220 is slightly lifted by the micro-lifting drive structure. After cutting, the lifting drive structure 230 operates in reverse, and the drive end drives the first base plate 210 downward. The fixed clamping posts and the top post 220 then separate from the suture, making it easy for the operator or other unloading mechanism to remove the cut suture.

[0038] Reference Figure 1 and Figure 2 It is understood that the barbed suture cutting device provided in this application also includes an image monitoring mechanism. The image monitoring mechanism includes an image acquisition module 310 and a reflecting prism assembly 320. The reflecting prism assembly 320 is disposed on the first base plate 210, and the image acquisition module 310 is located above the reflecting prism assembly 320. The reflecting prism assembly 320 is used to reflect the image of the suture positioned and supported on the top post 220 to the image acquisition module 310. During the operation of the barbed suture cutting device, after the top post 220 positions and supports the suture, light shines on the suture. The light reflected from the suture enters the reflecting prism assembly 320 disposed on the first base plate 210. The reflecting prism assembly 320 changes the propagation direction of the light through its optical structure, transmitting the image of the suture to the image acquisition module 310 located above by reflection. The image acquisition module 310 captures the reflected image and records the real-time status of the suture on the top post 220, including information such as position and shape. Operators can use the images fed back by the image acquisition module 310 to determine the positioning of the suture on the top post 220. They can then promptly detect positioning deviations through manual or intelligent recognition systems, make adjustments, further improve positioning accuracy, reduce cutting errors, and ensure the cutting quality of the barbed suture.

[0039] Reference Figure 1 and Figure 2It is understood that the barbed thread cutting device provided in this application also includes a moving mechanism 400. The driving end of the moving mechanism 400 is provided with a second base plate 410. The positioning mechanism and the cutting mechanism are mounted on the second base plate 410. The moving mechanism 400 is used to drive the positioning mechanism and the cutting mechanism closer to or further away from the thread to be cut. When it is necessary to approach the thread to be cut, the moving mechanism 400 drives the positioning mechanism and the cutting mechanism closer to the thread until the cutting mechanism reaches a suitable cutting position. After the cutting operation is completed, the moving mechanism 400 reverses its direction, moving the positioning mechanism and the cutting mechanism away from the thread, making it easier for the operator to remove the cut thread and preparing for the next cut. By precisely controlling the stroke of the moving mechanism 400, it can be ensured that the positioning mechanism can accurately position the thread at the optimal working position of the cutting mechanism each time, avoiding cutting errors caused by positional deviations, improving the cutting accuracy of the barbed thread, and ensuring the stability of product quality.

[0040] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A barbed thread cutting device, characterized in that, include: A positioning mechanism is used to position the suture to be cut; A cutting mechanism is provided on the side of the positioning mechanism, including a rotary drive structure and a cutter drive structure. The drive end of the rotary drive structure is connected to the cutter drive structure and is used to adjust the angle of the cutter drive structure relative to the suture. The cutter drive structure is used to cut the suture.

2. The barbed suture cutting device according to claim 1, characterized in that, The cutting mechanism further includes a support plate. The rotary drive structure includes a first drive member and a turntable assembly. The turntable assembly includes a fixed part, a transmission part, and a rotating part. The fixed part is disposed on the side of the support plate near the positioning mechanism. The rotating part is rotatably disposed on the fixed part. The transmission part is disposed within the fixed part and connected to the drive end of the first drive member. The first drive member is used to drive the transmission part to drive the rotating part to rotate. The cutter drive structure is disposed on the rotating part.

3. The barbed suture cutting device according to claim 2, characterized in that, The cutter drive structure includes a first connecting plate, a second drive member, and a cutter assembly. One side of the first connecting plate is connected to the rotating part, and the second drive member is fixed to the other side of the first connecting plate. The drive end of the second drive member is connected to the cutter assembly, and the second drive member is used to drive the cutter assembly to move closer to or away from the suture.

4. The barbed suture cutting device according to claim 3, characterized in that, The cutting assembly includes a second connecting plate, a mounting block, and a blade. One side of the second connecting plate is connected to the driving end of the second driving member. The mounting block is disposed on the other side of the second connecting plate. The blade is detachably disposed on the end of the mounting block away from the second connecting plate. When the blade is fully inserted into the seam, the tip of the blade coincides with the rotation axis of the rotating part.

5. The barbed suture cutting device according to claim 2, characterized in that, The cutting mechanism further includes a fine-tuning structure, which is disposed on the side of the positioning mechanism. The support plate is disposed on the adjustment part of the fine-tuning structure, and the fine-tuning structure is used to adjust the relative position between the cutting mechanism and the positioning mechanism.

6. The barbed suture cutting device according to claim 5, characterized in that, The fine-tuning structure includes a fixed plate, an adjusting plate, a return spring, and a fine-tuning rotating component. The adjusting plate is slidably connected to the fixed plate. A fixed block and a push block are respectively provided on the same side of the fixed plate and the adjusting plate. The fine-tuning rotating component passes through the fixed block, and the movable rod of the fine-tuning rotating component abuts against the push block to push the adjusting plate to move in the direction of the positioning mechanism. The return spring is disposed between the fixed plate and the adjusting plate, and its two ends abut against the fixed plate and the adjusting plate respectively.

7. The barbed suture cutting device according to claim 1, characterized in that, The positioning mechanism includes a first base plate and a top column. The top column is disposed on the first base plate and is used to abut against the position of the suture to be cut in order to position and support the position of the suture to be cut.

8. The barbed suture cutting device according to claim 7, characterized in that, The positioning mechanism further includes an upward driving structure and a micro-lifting driving structure. The first base plate is disposed at the driving end of the upward driving structure. The first base plate is provided with fixed clamping columns on both sides of the top column. The upward driving structure is used to drive the first base plate to move so that the fixed clamping columns clamp and position the suture. The top column is disposed on the first base plate through the micro-lifting driving structure. The micro-lifting driving structure is used to drive the top column to rise so as to lift the suture clamped by the fixed clamping columns.

9. The barbed suture cutting device according to claim 7, characterized in that, It also includes an image monitoring mechanism, which includes an image acquisition module and a reflective prism assembly. The reflective prism assembly is disposed on the first base plate, and the image acquisition module is located above the reflective prism assembly. The reflective prism assembly is used to reflect the image of the positioning support suture on the top column to the image acquisition module.

10. The barbed suture cutting device according to claim 1, characterized in that, It also includes a moving mechanism, the driving end of which is provided with a second base plate. The positioning mechanism and the cutting mechanism are disposed on the second base plate. The moving mechanism is used to drive the positioning mechanism and the cutting mechanism to move closer to or away from the suture to be cut.

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