Processing device for barbs of suture lines

Abstract

The invention relates to the field of medical suture line processing, in particular to a suture line barb processing device which comprises a support, a movable frame is rotatably mounted in the support, the rotating axis of the movable frame extends horizontally, a suture line penetrates through the support and the movable frame, and the rotating axis of the movable frame coincides with the suture line; a knife rest is rotatably mounted in the movable frame, the rotating axis of the knife rest is perpendicularly intersected with the suture line, a mounting seat driven by a driving device to reciprocate is arranged on the knife rest, the moving direction of the mounting seat is perpendicular to the rotating axis of the knife rest, an adjustable knife holder is mounted on the mounting seat, and a cutter is fixedly mounted on the knife holder; the moving path of the cutter is vertically intersected with the rotating axis of the cutter rest; a power component used for adjusting the angle of the tool rest is connected between the tool rest and the movable frame. The electric push rod drives the knife rest to rotate relative to the movable frame when stretching out and drawing back, and therefore the cutting angle of the cutter to suture lines is adjusted.

Description

Technical Field

[0001] The invention relates to the field of medical suture processing, and in particular to a suture barb processing device. Background Art

[0002] Barbed sutures are knotless sutures that have a barbed structure on the surface. When suturing tissue, these barbs penetrate into the tissue and lock it in place, without the need to tie a knot to tie the suture.

[0003] In the prior art, the utility model patent with application number CN221555752U discloses a suture barb processing mechanism, in which a first winding roller is provided at the output end of the first servo motor, a mounting box is provided in the middle of the upper surface of the processing table, a rotating block is slidably connected to the middle of the inner wall of the mounting box, a fixing ring is fixedly connected to the front end of the inner wall of the mounting box, and a plurality of fixing holes are provided on the outer wall of the front end of the fixing ring; two hydraulic rods are fixedly connected to both sides of the inner wall of the rotating block, a cutting knife is provided at the output end of the hydraulic rod, and a second winding roller is provided at the output end of the second servo motor. By manually adjusting the rotating block, the cutting knife head is adjusted to a suitable angle, and then the rotating block is fixed by bolts, so that the angle of the cutting knife can be adjusted according to the actual situation of the suture, and the mechanism has a wide range of applications.

[0004] However, the above-mentioned barb processing mechanism can only adjust the orientation of the cutting head by circumferential rotation around the suture line, and the angle between the hydraulic rod and the suture line is fixed, so the inclination angle of the cutting head when cutting the suture line cannot be adjusted, and different processing requirements cannot be met, and it needs to be improved. Summary of the invention

[0005] The object of the present invention is to provide a suture barb processing device, which is convenient for adjusting the inclination angle of the cutter to solve the defects mentioned in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A suture barb processing device comprises a bracket, a movable frame is rotatably installed in the bracket, the axis of rotation of the movable frame extends horizontally, the suture passes through the bracket and the movable frame, and the axis of rotation of the movable frame coincides with the suture; a knife holder is rotatably installed in the movable frame, the axis of rotation of the knife holder is perpendicular to the suture, a mounting seat driven to reciprocate by a driving device is provided on the knife holder, the direction of movement of the mounting seat is perpendicular to the axis of rotation of the knife holder, an adjustable knife holder is installed on the mounting seat, a cutter is fixedly installed on the knife holder, and the movement path of the cutter is perpendicular to the axis of rotation of the knife holder; a power component for adjusting the angle of the knife holder is connected between the knife holder and the movable frame.

[0008] As a preferred technical solution, the power component is an electric push rod, one end of which is hinged on the movable frame and the other end is hinged on the tool holder. When the electric push rod is extended or retracted, it drives the tool holder to rotate relative to the movable frame.

[0009] As a preferred technical solution, a large gear is fixedly mounted on the movable frame, the axis of the large gear coincides with the axis of rotation of the movable frame, and a small gear driven to rotate by an adjusting motor is mounted on the bracket, and the small gear meshes with the large gear.

[0010] As a preferred technical solution, coaxially arranged mounting shafts are fixedly installed at the opposite ends of the bracket, and the two ends of the movable frame are rotatably connected to the corresponding mounting shafts. The mounting shaft passes through the corresponding ends of the bracket and the movable frame, and a wire passing hole is provided in the mounting shaft along its axis, and the suture thread passes through the wire passing hole.

[0011] As a preferred technical solution, a sliding rod is fixedly installed on the tool holder, the sliding rod is perpendicular to the axis of rotation of the tool holder, and the mounting seat is slidably installed on the sliding rod; the driving device includes an eccentric wheel installed on the tool holder and driven to rotate by a driving motor, a supporting wheel matching the eccentric wheel is rotatably installed on the mounting seat, and a supporting spring for making the supporting wheel close to the outer peripheral surface of the eccentric wheel is sleeved on the sliding rod, and when the eccentric wheel rotates, the mounting seat is driven to reciprocate along the sliding rod.

[0012] As a preferred technical solution, a sliding groove is provided at the bottom of the mounting seat, and the extension direction of the sliding groove is perpendicular to the axis of rotation of the tool holder. The tool holder is slidably installed in the sliding groove, and a nut is fixedly installed in the sliding groove. An adjusting screw extending along the length direction of the sliding groove is screwed into the nut, and a tension spring is provided in the sliding groove for pulling the tool holder to abut one end of the adjusting screw.

[0013] As a preferred technical solution, a knob is sleeved on the outer side of the end of the adjusting screw away from the knife seat, a coaxially arranged polygonal column is fixedly installed on the end of the adjusting screw away from the knife seat, and a sliding groove matching the polygonal column is provided on the end of the knob away from the knife seat; the end of the knob close to the knife seat is in the shape of a cylinder coaxially arranged with the adjusting screw, the mounting seat is provided with a circular groove for inserting the cylindrical end of the knob, a protruding positioning block is provided on the outer side of the cylindrical end of the knob, and a positioning groove matching the positioning block is provided on the inner wall of the circular groove.

[0014] As a preferred technical solution, the adjusting screw is sleeved with a locking spring for inserting one cylindrical end of the knob into the circular groove.

[0015] As a preferred technical solution, a locking bolt is screwed into the slide groove, and a waist hole for the locking bolt to pass through is provided on the knife seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When the cutter cuts the suture, the motor can be adjusted to drive the small gear to rotate, and the small gear drives the large gear and the movable frame to rotate around the mounting shaft, and then the movable frame drives the cutter to rotate around the suture, thereby adjusting the cutting position of the cutter on the suture around the circumference of the suture;

[0018] 2. A knife holder is rotatably installed in the movable frame. When the electric push rod is extended or retracted, the knife holder is driven to rotate relative to the movable frame, thereby adjusting the cutting angle of the cutter to the suture line to meet different processing requirements;

[0019] 3. The tension spring applies a pulling force to the knife seat in the direction away from the support shaft, so that the knife seat is pressed against the front end of the adjusting screw. The installation position of the knife seat and the cutter can be fine-tuned along the radial direction of the support shaft by rotating the adjusting screw, so as to adjust the depth of the cutter cutting into the suture line when the installation seat moves back and forth within a fixed stroke.

[0020] 4. After the knife holder and the cutter are adjusted to the desired position, the thrust of the locking spring causes the cylindrical end of the knob to be inserted into the circular groove. At the same time, the knob drives the positioning block to be inserted into the aligned positioning groove, thereby limiting the rotation of the knob and the adjusting screw to avoid accidental contact with the knob, causing the knife holder and the cutter to deviate from the preset position. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0023] Figure 2 yes Figure 1 A right side schematic diagram of

[0024] Figure 3 is a schematic structural diagram of the rear end of the movable frame according to an embodiment of the present invention;

[0025] Figure 4 is a schematic structural diagram of a tool holder according to an embodiment of the present invention;

[0026] Figure 5 is a schematic structural diagram of a mounting base according to an embodiment of the present invention;

[0027] Figure 6 yes Figure 5 Yes, explosion diagram;

[0028] Figure 7 is a schematic structural diagram of a knob according to an embodiment of the present invention;

[0029] Figure 8 It is a schematic structural diagram of a circular groove according to an embodiment of the present invention.

[0030] In the figure: 1- bracket; 2- bottom plate; 3- vertical plate; 4- movable frame; 5- mounting shaft; 6- electric push rod; 7- support wheel; 8- suture line; 9- thread hole; 10- large gear; 11- adjusting motor; 12- small gear; 13- tool holder; 14- supporting shaft; 15- supporting plate; 16- mounting seat; 17- strip hole; 18- sliding rod; 19- door frame; 20- driving motor; 21- eccentric wheel ; 22-knife holder; 23-cutter; 24-slide groove; 25-nut; 26-adjusting screw; 27-tension spring; 28-first hanging rod; 29-second hanging rod; 30-avoidance hole; 31-knob; 32-through hole; 33-polygonal column; 34-slide groove; 35-positioning block; 36-positioning groove; 37-locking spring; 38-locking bolt; 39-waist hole; 40-support spring; 41-round groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figures 1 to 8 As shown, a suture barb processing device includes a bracket 1, the bracket 1 is provided with a bottom plate 2, and vertical plates 3 are respectively fixedly installed on the front and rear ends of the top of the bottom plate 2 by bolts. A movable frame 4 is rotatably installed in the bracket 1, and the side of the movable frame 4 is U-shaped, and the axis of rotation of the movable frame 4 extends horizontally front and back. Specifically, two vertical plates 3 are respectively fixedly installed with installation shafts 5 extending front and back by bolts, and the two installation shafts 5 are coaxially arranged, and the front and rear vertical walls of the movable frame 4 are respectively rotatably connected to the corresponding installation shafts 5 through bearings. The suture 8 passes through the bracket 1 and the movable frame 4. Specifically, the installation shaft 5 passes through the corresponding vertical plate 3 and the corresponding vertical wall of the movable frame 4, and the installation shaft 5 is provided with a thread hole 9 that passes through along its axis. The suture 8 passes through the thread hole 9, so that the axis of rotation of the movable frame 4 coincides with the suture 8.

[0033] like Figure 2 and Figure 3 As shown, a large gear 10 is fixedly installed on the outer side of the vertical wall at the rear side of the movable frame 4 by bolts. The large gear 10 is a hollow ring and the axis of the large gear 10 coincides with the axis of the installation shaft 5. An adjustment motor 11 is fixedly installed on the vertical plate 3 at the rear end of the bracket 1 by bolts. A coaxially arranged small gear 12 is fixedly installed on the rotating shaft of the adjustment motor 11, and the small gear 12 is meshed with the large gear 10. When the cutter 23 cuts the suture 8, the small gear 12 can be driven to rotate by the adjustment motor 11, and the small gear 12 drives the large gear 10 and the movable frame 4 to rotate around the installation shaft 5, and then the movable frame 4 drives the cutter 23 to rotate around the suture 8, so as to adjust the cutting position of the suture 8 by the cutter 23 around the circumference of the suture 8.

[0034] A knife holder 13 is rotatably installed in the movable frame 4, and the axis of rotation of the knife holder 13 intersects the suture line 8 at right angles. The knife holder 13 is specifically in a U-shape with an open front end. Support shafts 14 extending left and right are respectively fixedly installed on the left and right sides of the front end of the knife holder 13 by bolts. Two support plates 15 arranged opposite to each other on the left and right are fixedly installed between the two vertical walls of the movable frame 4 by bolts. The support shaft 14 is rotatably connected to the corresponding support plate 15 through a bearing, and the axis of the support shaft 14 intersects the suture line 8 at right angles. The rear end of the support shaft 14 deviates in the direction away from the suture line 8, so that a certain inclination angle is maintained between the knife holder 13 and the cutter 23 and the suture line 8. A power component for adjusting the angle of the tool holder 13 is connected between the tool holder 13 and the movable frame 4. The power component is specifically an electric push rod 6. Two electric push rods 6 are symmetrically arranged on the left and right. One end of the electric push rod 6 is hinged to the inner side of the bottom wall of the movable frame 4, and the other end is hinged to the rear end of the tool holder 13. The electric push rod 6 is tilted. When the electric push rod is extended or retracted, it drives the tool holder 13 to rotate relative to the movable frame 4, thereby adjusting the cutting angle of the cutter 23 to the suture line 8 to meet different processing requirements.

[0035] like Figure 4As shown, a mounting seat 16 driven to reciprocate by a driving device is provided on the tool holder 13, and the movement direction of the mounting seat 16 is perpendicular to the axis of rotation of the tool holder 13. The left and right side walls of the tool holder 13 are respectively provided with strip holes 17 that are arranged horizontally through, and sliding rods 18 are respectively fixed in the two strip holes 17 by bolts. The sliding rods 18 are perpendicularly arranged to the support shaft 14, and the left and right ends of the mounting seat 16 are respectively slidably installed on the corresponding sliding rods 18, thereby improving the sliding stability of the mounting seat 16. The driving device includes a door frame 19 fixedly installed on the top of the tool holder 13 by bolts, a driving motor 20 is installed on the door frame 19 by bolts, and the rotating shaft of the driving motor 20 is arranged perpendicular to the sliding rod 18, an eccentric wheel 21 is fixedly installed on the rotating shaft of the driving motor 20, and a support wheel 7 matching the eccentric wheel 21 is rotatably installed on the top of the mounting seat 16 through a bearing, the axis of the support wheel 7 is parallel to the rotating shaft of the driving motor 20, and the support wheel 7 is located on the side of the eccentric wheel 21 close to the support shaft 14, and a support spring 40 is sleeved on the sliding rod 18 for making the support wheel 7 close to the outer peripheral surface of the eccentric wheel 21, one end of the support spring 40 abuts the front side wall of the strip hole 17, and the other end abuts the side of the mounting seat 16 close to the support shaft 14, the support spring 40 gives the mounting seat 16 a thrust backward in the direction away from the support shaft 14, and then the mounting seat 16 drives the support wheel 7 to be close to the front side of the eccentric wheel 21 backward, and reciprocates back and forth with the rotation of the eccentric wheel 21.

[0036] When in use, the suture 8 is driven to move axially by the traction mechanism, the driving motor 20 is started and the eccentric wheel 21 is driven to rotate, the eccentric wheel 21 acts on the support wheel 7 and drives the mounting seat 16 to move back and forth along the slide bar 18; an adjustable knife seat 22 is installed on the mounting seat 16, and a cutter 23 is fixedly installed at the bottom of the knife seat 22 by bolts, and the front end of the cutter 23 extends out of the knife seat 22. After the installation position of the knife seat 22 is adjusted, the mounting seat 16 moves back and forth along the slide bar 18 and drives the cutter 23 to move synchronously. When the mounting seat 16 moves forward along the slide bar 18 in an inclined manner toward the support shaft 14, the mounting seat 16 drives the cutter 23 to advance and cut the suture 8; when the mounting seat 16 moves backward along the slide bar 18 in an inclined manner away from the support shaft 14, the mounting seat 16 drives the cutter 23 to retract, so that barbs are formed on the outer surface of the suture 8 as the mounting seat 16 and the cutter 23 move back and forth.

[0037] The movement path of the cutter 23 intersects perpendicularly with the axis of the support shaft 14, so as to avoid a significant change in the distance between the front end of the cutter 23 and the suture line 8 when the angles of the knife holder 13 and the cutter 23 change.

[0038] like Figure 5 and Figure 6As shown, a slide groove 24 is provided at the bottom of the mounting seat 16, and the extension direction of the slide groove 24 is perpendicular to the axis of the support shaft 14. The slide groove 24 is opened at one end close to the support shaft 14, and the knife seat 22 is slidably installed in the slide groove 24. A nut 25 is fixedly installed in the rear end of the slide groove 24 by bolts, and an adjusting screw 26 extending along the length direction of the slide groove 24 is screwed into the nut 25. A tension spring 27 for pulling the knife seat 22 backward to abut against the front end of the adjusting screw 26 is provided in the slide groove 24. Two tension springs 27 are arranged opposite to each other on the left and right. Two first hanging rods 28 arranged opposite to each other on the left and right are screwed into the rear end of the knife seat 22, and a second hanging rod 29 is screwed into the slide groove 24 located on the rear side of the first hanging rod 28, and the two ends of the tension spring 27 are respectively hung on the corresponding first hanging rod 28 and the second hanging rod 29. The tension spring 27 applies a pulling force to the knife seat 22 in the direction backward and away from the support shaft 14, so that the knife seat 22 rests backward against the front end of the adjusting screw 26. The installation position of the knife seat 22 and the cutter 23 can be fine-tuned along the radial direction of the support shaft 14 by rotating the adjusting screw 26, so as to adjust the depth of the cutter 23 cutting into the suture line 8 when the mounting seat 16 moves back and forth within a fixed stroke.

[0039] like Figure 7 and Figure 8 As shown, one end of the adjusting screw 26 away from the knife seat 22 passes backward out of the outer side of the slide groove 24, and the rear end of the mounting seat 16 is provided with an avoidance hole 30 for the adjusting screw 26 to pass through. A knob 31 is sleeved on the outer side of the rear end of the adjusting screw 26, and the knob 31 is provided with a through hole 32 for the adjusting screw 26 to pass through. A coaxially arranged polygonal column 33 is welded to the end of the adjusting screw 26 away from the knife seat 22, and a sliding groove 34 matching the polygonal column 33 is provided at the end of the knob 31 away from the knife seat 22. The through hole 32 is connected to the sliding groove 34. The cross-section of the sliding groove 34 is a regular polygon matching the polygonal column 33. The polygonal column 33 is retracted into the sliding groove 34. When the knob 31 is rotated, the adjusting screw 26 can be driven to rotate through the polygonal column 33, so as to adjust the knife seat 22 and the cutter 23 forward and backward.

[0040] The end of the knob 31 close to the knife seat 22 is cylindrical and is coaxially arranged with the adjusting screw 26. The rear end of the mounting seat 16 is provided with a circular groove 41 for the cylindrical end of the knob 31 to be inserted. The avoidance hole 30 is connected to the circular groove 41. A protruding positioning block 35 is integrally formed on the outer side of the cylindrical end of the knob 31. Three positioning blocks 35 are arranged at equal intervals around the knob 31. A positioning groove 36 matching the positioning block 35 is provided on the inner wall of the circular groove 41. A plurality of positioning grooves 36 are evenly spaced around the inner wall of the circular groove 41. When it is necessary to fine-tune the installation position of the knife holder 22 and the cutter 23, the knob 31 can be pulled backward and away from the knife holder 22 to disengage its front end from the circular groove 41, and the knob 31 can drive the positioning block 35 to disengage the positioning groove 36. Then the knob 31 can be rotated to drive the adjusting screw 26 to rotate and adjust the knife holder 22 and the cutter 23 forward and backward. After the knife holder 22 and the cutter 23 are adjusted to the desired position, the front cylindrical end of the knob 31 is inserted into the circular groove 41, and the knob 31 drives the positioning block 35 to be inserted into the aligned positioning groove 36 at this time, thereby limiting the rotation of the knob 31 and the adjusting screw 26 to avoid accidentally touching the knob 31 and causing the knife holder 22 and the cutter 23 to deviate from the preset position.

[0041] In addition, a locking spring 37 is sleeved on the adjusting screw 26 located in the sliding groove 34. One end of the locking spring 37 abuts against the inner wall of the sliding groove 34, and the other end abuts against the polygonal column 33. The locking spring 37 gives the knob 31 a thrust forward in the direction close to the knife seat 22. When there is no external force, the cylindrical end of the knob 31 remains inserted into the circular groove 41 to prevent the knob 31 from being accidentally rotated.

[0042] A locking bolt 38 is screwed into the slide groove 24, and a waist hole 39 is provided on the knife seat 22 for the locking bolt 38 to pass through, and the waist hole 39 vertically penetrates the knife seat 22. After loosening the locking bolt 38, the knife seat 22 and the cutter 23 can be adjusted forward and backward by rotating the knob 31; after the knife seat 22 and the cutter 23 are adjusted to the right position, the locking bolt 38 is tightened to further fix the position of the knife seat 22 and the cutter 23, thereby improving the cutting accuracy of the cutter 23 on the suture 8.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A suture barb processing device, characterized in that: It comprises a bracket, a movable frame is rotatably mounted inside the bracket, the axis of rotation of the movable frame extends horizontally, a suture line passes through the bracket and the movable frame, and the axis of rotation of the movable frame coincides with the suture line; a knife holder is rotatably mounted inside the movable frame, the axis of rotation of the knife holder intersects perpendicularly with the suture line, a mounting seat driven to reciprocate by a driving device is provided on the knife holder, the direction of movement of the mounting seat is perpendicular to the axis of rotation of the knife holder, an adjustable knife holder is mounted on the mounting seat, a cutter is fixedly mounted on the knife holder, and the movement path of the cutter intersects perpendicularly with the axis of rotation of the knife holder; a power component for adjusting the angle of the knife holder is connected between the knife holder and the movable frame.

2. A suture barb processing device according to claim 1, characterized in that: The power component is an electric push rod, one end of which is hinged on the movable frame and the other end is hinged on the tool holder. When the electric push rod is extended or retracted, it drives the tool holder to rotate relative to the movable frame.

3. A suture barb processing device according to claim 1, characterized in that: A large gear is fixedly mounted on the movable frame, the axis of which coincides with the axis of rotation of the movable frame, and a small gear driven to rotate by an adjusting motor is mounted on the bracket, the small gear meshes with the large gear.

4. A suture barb processing device according to claim 1, characterized in that: The opposite ends of the bracket are respectively fixedly installed with coaxially arranged mounting shafts, and the two ends of the movable frame are respectively rotatably connected with the corresponding mounting shafts. The mounting shaft passes through the corresponding ends of the bracket and the movable frame. The mounting shaft is provided with a wire passing hole arranged along its axis, and the suture thread passes through the wire passing hole.

5. A suture barb processing device according to claim 1, characterized in that: A sliding rod is fixedly installed on the tool holder, and the sliding rod is perpendicular to the axis of rotation of the tool holder, and the mounting seat is slidably installed on the sliding rod; the driving device includes an eccentric wheel installed on the tool holder and driven to rotate by a driving motor, and a supporting wheel matching the eccentric wheel is rotatably installed on the mounting seat, and a supporting spring for making the supporting wheel close to the outer peripheral surface of the eccentric wheel is sleeved on the sliding rod, and when the eccentric wheel rotates, the mounting seat is driven to reciprocate along the sliding rod.

6. A suture barb processing device according to claim 1, characterized in that: A slide groove is provided at the bottom of the mounting seat, and the extension direction of the slide groove is perpendicular to the axis of rotation of the tool holder. The tool holder is slidably installed in the slide groove, and a nut is fixedly installed in the slide groove. An adjusting screw extending along the length direction of the slide groove is screwed into the nut, and a tension spring is provided in the slide groove for pulling the tool holder to abut against one end of the adjusting screw.

7. A suture barb processing device according to claim 6, characterized in that: A knob is sleeved on the outer side of the end of the adjusting screw away from the knife seat, a coaxially arranged polygonal column is fixedly mounted on the end of the adjusting screw away from the knife seat, and a sliding groove matching the polygonal column is provided on the end of the knob away from the knife seat; the end of the knob close to the knife seat is in the shape of a cylinder coaxially arranged with the adjusting screw, the mounting seat is provided with a circular groove for inserting the cylindrical end of the knob, a protruding positioning block is provided on the outer side of the cylindrical end of the knob, and a positioning groove matching the positioning block is provided on the inner wall of the circular groove.

8. A suture barb processing device according to claim 7, characterized in that: The adjusting screw is sleeved with a locking spring for inserting one cylindrical end of the knob into the circular groove.

9. A suture barb processing device according to claim 6, characterized in that: A locking bolt is screwed into the slide groove, and a waist hole for the locking bolt to pass through is provided on the knife seat.

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