Suture line barb structure cutting device capable of adjusting cutting direction in radial direction

Abstract

The invention belongs to the technical field of suture line cutting, and particularly relates to a suture line barb structure cutting device capable of adjusting the cutting direction in the radial direction, the suture line barb structure cutting device comprises a rack, a clamping mechanism is arranged above the rack, and a suture line penetrates through the clamping end of the clamping mechanism; a driving mechanism is arranged below the rack, the driving mechanism is in transmission connection with a rotating mechanism, a position adjusting mechanism is arranged on the rotating mechanism, an angle adjusting mechanism is arranged at the movable end of the position adjusting mechanism, a cutting mechanism is arranged at the movable end of the angle adjusting mechanism, and the suture line and the cutting end of the cutting mechanism are correspondingly arranged up and down. A suture line penetrates through the clamping mechanism, the driving mechanism drives the rotating mechanism to rotate in a reciprocating mode, the cutting direction is adjusted, the cutting position is adjusted through the position adjusting mechanism, the cutting angle is adjusted through the angle adjusting mechanism, and bidirectional barb structure cutting of the suture line is achieved. By means of the device, barbs in different directions can be cut on the suture line at a time, and operation is easy.

Description

Technical Field

[0001] The present invention belongs to the technical field of suture cutting, and in particular relates to a suture barb structure cutting device with radially adjustable cutting direction. Background Art

[0002] Traditional sutures have the characteristics of easy operation and high efficiency, but when used in intracavitary surgery, there are problems such as limited surgical space, loose knots and easy breakage of sutures. Barbed sutures have become a new type of medical material that has attracted much attention in clinical surgery due to their advantages such as no need to tie knots and uniform stress distribution. However, the barb structure will significantly reduce the breaking strength of the suture, which may cause serious medical accidents. Finite element simulation studies have shown that the stress intensity factor at the midpoint of the crack front line of the barb structure is the largest, and it is the position where the crack is most likely to expand. In order to balance the breaking stress and anchoring force of the barbed suture, bidirectional barbs are opened on the suture. However, the existing technology for opening bidirectional barbs on the suture requires removing the suture after opening the barbs in one direction and then opening barbs in the opposite direction, which is more troublesome. Summary of the Invention

[0003] The object of the present invention is to provide a suture barb structure cutting device with radially adjustable cutting direction to solve the above problems.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] A suture barb structure cutting device with radially adjustable cutting direction comprises: a frame, a clamping mechanism is provided above the frame, a clamping end of the clamping mechanism is located below the frame, and a suture passes through the clamping end of the clamping mechanism;

[0006] A driving mechanism is provided below the frame, and the driving mechanism is connected to a rotating mechanism in a transmission manner. The driving mechanism drives the rotating mechanism to perform reciprocating rotational motion. A position adjustment mechanism is provided on the rotating mechanism, and an angle adjustment mechanism is provided at the movable end of the position adjustment mechanism. A cutting mechanism is provided at the movable end of the angle adjustment mechanism, and the suture line and the cutting end of the cutting mechanism are arranged correspondingly up and down.

[0007] In the suture barb structure cutting device with radially adjustable cutting direction of the present invention, the rotating mechanism includes a mounting frame, the mounting frame is located below the frame, a swivel is fixedly connected to the top surface of the mounting frame, a base plate is rotatably connected above the swivel, two drive grooves are provided on the base plate, the two drive grooves are coaxially arranged, and the two drive grooves respectively pass through the diagonal corners of the base plate, the drive grooves are adapted to the drive mechanism, and the position adjustment mechanism is arranged on the top surface of the base plate.

[0008] In the suture barb structure cutting device with radially adjustable cutting direction of the present invention, the driving mechanism includes four gears, which are sequentially arranged in a direction perpendicular to the suture, and two adjacent gears are meshed with each other. The gear at one end is rotatably connected to the top of the rotary drive motor through a thrust ball bearing, and the gear at one end is coaxially fixed with the output shaft of the rotary drive motor, and the other gears are rotatably connected to the top of the gear seat through another thrust ball bearing.

[0009] The top ends of the gears at both ends are fixedly connected with a rotation drive shaft, and the rotation drive shaft is adapted to and corresponding to the drive slot.

[0010] In the suture barb structure cutting device with radially adjustable cutting direction of the present invention, the position adjustment mechanism includes a ball screw, which is rotatably connected to the top surface of the base plate through two first bearing seats, one end of the ball screw passes through one of the first bearing seats and is coaxially fixed with the output shaft of the position adjustment motor, the position adjustment motor is fixed to the top surface of the base plate, the ball screw is threadedly connected to a ball slider, the ball slider is slidably connected to the top surface of the base plate, and a first mounting seat is fixedly installed on the ball slider.

[0011] In the suture barb structure cutting device with radially adjustable cutting direction of the present invention, the angle adjustment mechanism includes two second bearing seats fixedly connected to the first mounting seat, and a second mounting seat is rotatably connected between the two second bearing seats. One end of the second mounting seat passes through the second bearing seat and is coaxially fixed with the output shaft of the angle adjustment motor, and the angle adjustment motor is fixed to the first mounting seat.

[0012] In the suture barb structure cutting device with radially adjustable cutting direction of the present invention, the cutting mechanism includes a cutting cylinder, which is fixed to the second mounting seat, and the output end of the cutting cylinder is detachably connected to a cutting knife, and the suture and the cutting knife are arranged correspondingly above and below.

[0013] In the suture barb structure cutting device with radially adjustable cutting direction of the present invention, the clamping mechanism includes a telescopic rod, both ends of the telescopic rod are respectively fixed to the middle of the parallel rod, both ends of the parallel rod are respectively rotatably connected to the top of the rotating rod, the middle of the rotating rod is hinged to a limiting rod, the limiting rod is fixed to the frame, the bottom end of the rotating rod is hinged to a first movable rod, the end of the first movable rod away from the rotating rod is hinged to a push rod, the push rod is slidably connected in a sliding sleeve, the end of the push rod away from the first movable rod passes through the sliding sleeve, and the suture is located between the two push rods.

[0014] In the suture barb structure cutting device with radially adjustable cutting direction of the present invention, one end of the push rod passing through the sliding sleeve is fixedly connected to a rubber column, the axis of the rubber column is vertically arranged, and the suture is in sliding contact with the two rubber columns.

[0015] In the suture barb structure cutting device with radially adjustable cutting direction of the present invention, a support plate is fixed to the frame, a mounting plate is fixed to the top end of the support plate, a vertically arranged upright pole is fixed to the top end of the mounting plate, a slip ring is vertically slidably connected to the upright pole, two second movable rods are hinged on the outer side wall of the slip ring, and the ends of the second movable rods away from the slip ring are respectively hinged on the two rotating rods.

[0016] In the suture barb structure cutting device with radially adjustable cutting direction of the present invention, a pressure block is fixed to the frame, the pressure block and the cutting knife are arranged correspondingly above and below, and the suture passes between the pressure block and the cutting knife.

[0017] Compared with the prior art, the present invention has the following advantages and technical effects:

[0018] The present invention provides a suture barb structure cutting device with radially adjustable cutting direction. During operation, the suture is first passed through a clamping mechanism, and then a driving mechanism drives a rotating mechanism to perform reciprocating rotational motion to adjust the cutting direction. The cutting position of the cutting mechanism is adjusted by a position adjustment mechanism, and the cutting angle of the cutting mechanism is adjusted by an angle adjustment mechanism to achieve bidirectional cutting of the barb structure of the suture.

[0019] The device of the present invention can cut barbs in different directions on a suture thread at one time and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive work.

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is the front view of the present invention;

[0023] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle;

[0024] Figure 4 It is a left side view of the present invention;

[0025] Among them, 1. frame; 2. suture line; 3. telescopic rod; 4. parallel rod; 5. rotating rod; 6. limit rod; 7. first movable rod; 8. second movable rod; 9. vertical rod; 10. slip ring; 11. mounting plate; 12. support plate; 13. rotating drive motor; 14. gear; 15. rotating drive shaft; 16. bottom plate; 17. swivel; 18. mounting frame; 19. gear seat; 20. angle adjustment motor; 21. first bearing seat; 22. position adjustment motor; 23. ball screw; 24. ball slider; 25. first mounting seat; 26. cutting cylinder; 27. thrust ball bearing; 28. push rod; 29. ​​sleeve; 30. rubber column; 31. cutting knife; 32. second bearing seat; 33. second mounting seat. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Reference Figures 1 to 4 The present invention discloses a suture barb structure cutting device with radially adjustable cutting direction, comprising: a frame 1, a clamping mechanism is provided above the frame 1, a clamping end of the clamping mechanism is located below the frame 1, and a suture 2 passes through the clamping end of the clamping mechanism;

[0029] A driving mechanism is provided below the frame 1, and the driving mechanism is connected to a rotating mechanism. The driving mechanism drives the rotating mechanism to perform reciprocating rotational motion. A position adjustment mechanism is provided on the rotating mechanism. The movable end of the position adjustment mechanism is provided with an angle adjustment mechanism. The movable end of the angle adjustment mechanism is provided with a cutting mechanism. The suture line 2 is provided correspondingly to the cutting end of the cutting mechanism above and below.

[0030] The present invention provides a suture barb structure cutting device with radially adjustable cutting direction. During operation, the suture 2 is first passed through the clamping mechanism, and then the driving mechanism drives the rotating mechanism to perform reciprocating rotation to adjust the cutting direction. The cutting position of the cutting mechanism is adjusted by the position adjustment mechanism, and the cutting angle of the cutting mechanism is adjusted by the angle adjustment mechanism to achieve bidirectional barb structure cutting of the suture 2.

[0031] There may also be two clamping mechanisms, which are symmetrically arranged along the axis of the rotating mechanism.

[0032] The device of the present invention can cut barbs in different directions on a suture thread at one time and is easy to operate.

[0033] In a feasible solution, the rotating mechanism includes a mounting frame 18, which is located below the frame 1. A swivel 17 is fixed to the top surface of the mounting frame 18, and a base plate 16 is rotatably connected above the swivel 17. Two drive grooves are provided on the base plate 16, and the two drive grooves are coaxially arranged. The two drive grooves respectively pass through the diagonal corners of the base plate 16. The drive grooves are adapted to the drive mechanism, and the position adjustment mechanism is arranged on the top surface of the base plate 16.

[0034] In one feasible solution, the drive mechanism includes four gears 14, which are sequentially arranged in a direction perpendicular to the suture line 2, with adjacent gears 14 meshing with each other. The gear 14 at one end is rotatably connected to the top of the rotary drive motor 13 through a thrust ball bearing 27. The gear 14 at one end is coaxially fixed to the output shaft of the rotary drive motor 13, and the other gears 14 are rotatably connected to the top of the gear seat 19 through another thrust ball bearing 27.

[0035] The top ends of the gears 14 at both ends are fixedly connected with a rotation drive shaft 15 , which is adapted to and corresponding to the drive slots.

[0036] The rotating drive motor 13 drives four sequentially meshed gears 14 to rotate, thereby driving the rotating drive shaft 15 to perform circular motion. The structure of the rotating drive shaft 15 is as follows: Figure 2 As shown, one end of the rotating drive shaft 15 extends into the driving groove, and the rotating drive shaft 15 slides in the driving groove, thereby driving the base plate 16 to rotate. When one of the rotating drive shafts 15 is separated from the driving groove, the other rotating drive shaft 15 is combined with the other driving groove, driving the base plate 16 to rotate in the opposite direction, thereby realizing reciprocating rotation of the base plate 16, realizing radially adjustable cutting direction of the barb structure of the suture thread 2, and increasing the bending stiffness of the barb structure.

[0037] The swivel 17 serves as a movement base for the base plate 16 , allowing the base plate 16 to rotate smoothly without deviation.

[0038] The thrust ball bearing 27 enables the gear 14 to rotate more smoothly.

[0039] The barb structure is prepared by a rotary drive motor 13 to achieve the reciprocating rotation of the cutting device in a compact structure.

[0040] By changing the relative positions of the gears 14 or the rotating ring 17, the reciprocating rotation angle of the cutting device can be easily adjusted.

[0041] In a feasible solution, the position adjustment mechanism includes a ball screw 23, which is rotatably connected to the top surface of the base plate 16 through two first bearing seats 21. One end of the ball screw 23 passes through one of the first bearing seats 21 and is coaxially fixed with the output shaft of the position adjustment motor 22. The position adjustment motor 22 is fixed to the top surface of the base plate 16. The ball screw 23 is threadedly connected to the ball slider 24. The ball slider 24 is slidably connected to the top surface of the base plate 16, and a first mounting seat 25 is fixedly installed on the ball slider 24.

[0042] The position adjustment motor 22 drives the ball screw 23 to rotate, and the ball screw 23 drives the first mounting seat 25 to move along the length direction of the ball screw 23 through the ball slider 24, thereby achieving position adjustment of the cutting mechanism.

[0043] In a feasible solution, the angle adjustment mechanism includes two second bearing seats 32 fixedly connected to the first mounting seat 25, and a second mounting seat 33 is rotatably connected between the two second bearing seats 32. One end of the second mounting seat 33 passes through the second bearing seat 32 and is coaxially fixed with the output shaft of the angle adjustment motor 20. The angle adjustment motor 20 is fixedly connected to the first mounting seat 25.

[0044] The angle adjustment motor 20 drives the second mounting seat 33 to rotate, adjusts the angle of the second mounting seat 33, and adjusts the angle of the cutting mechanism.

[0045] In a feasible solution, the cutting mechanism includes a cutting cylinder 26, which is fixed to the second mounting base 33. The output end of the cutting cylinder 26 is detachably connected to a cutting knife 31, and the suture line 2 and the cutting knife 31 are arranged correspondingly up and down.

[0046] A knife groove is provided at the output end of the cutting cylinder 26, and the cutting knife 31 is inserted into the knife groove. An external thread is provided on the outer wall of the output end of the cutting cylinder 26, and the diameter of the output end of the cutting cylinder 26 gradually increases in the direction away from the cutting cylinder 26. A nut is connected to the outer thread of the output end of the cutting cylinder 26. After inserting the blade, the width of the knife groove can be changed by tightening the nut, thereby clamping the cutting knife 31.

[0047] In a feasible solution, the clamping mechanism includes a telescopic rod 3, the two ends of the telescopic rod 3 are respectively fixed to the middle of the parallel rod 4, the two ends of the parallel rod 4 are respectively rotatably connected to the top of the rotating rod 5, the middle of the rotating rod 5 is hinged with a limit rod 6, the limit rod 6 is fixed to the frame 1, the bottom end of the rotating rod 5 is hinged with a first movable rod 7, the end of the first movable rod 7 away from the rotating rod 5 is hinged with a push rod 28, the push rod 28 is slidably connected in the sliding sleeve 29, the end of the push rod 28 away from the first movable rod 7 passes through the sliding sleeve 29, and the suture line 2 is located between the two push rods 28.

[0048] The telescopic rod 3 extends, and drives the top ends of the rotating rods 5 on both sides to move away from each other through the two parallel rods 4. The rotating rods 5 rotate around the limiting rods 6, and the bottom ends of the rotating rods 5 on both sides approach each other, thereby clamping the suture thread 2.

[0049] In a feasible solution, one end of the push rod 28 passing through the sliding sleeve 29 is fixedly connected to a rubber column 30 , the axis of the rubber column 30 is vertically arranged, and the suture thread 2 is in sliding contact with the two rubber columns 30 .

[0050] The material of the rubber column 30 is flexible rubber;

[0051] Such an arrangement allows the suture thread 2 to be movable in a clamped state without damaging the suture thread.

[0052] In a feasible solution, a support plate 12 is fixed to the frame 1, a mounting plate 11 is fixed to the top of the support plate 12, a vertically arranged upright pole 9 is fixed to the top of the mounting plate 11, a slip ring 10 is vertically slidably connected to the upright pole 9, two second movable rods 8 are hinged on the outer side wall of the slip ring 10, and the ends of the second movable rods 8 away from the slip ring 10 are respectively hinged on the two rotating rods 5.

[0053] When the top ends of the rotating rods 5 on both sides move away from or closer to each other, the slip ring 10 always slides on the vertical rod 9, so that the rotating rods 5 on both sides are always symmetrical along the vertical rod 9, so that the suture line 2 remains in the center.

[0054] In a feasible solution, a pressing block is fixed to the frame 1 , and the pressing block and the cutting knife 31 are arranged correspondingly up and down, and the suture thread 2 passes between the pressing block and the cutting knife 31 .

[0055] The pressing block and the cutting knife 31 are arranged correspondingly up and down to prevent the suture line 2 from deflecting when the barbs are opened, thereby affecting normal work.

[0056] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0057] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A suture barb structure cutting device with radially adjustable cutting direction, characterized in that: include: A frame (1), wherein a clamping mechanism is provided above the frame (1), a clamping end of the clamping mechanism is located below the frame (1), and a suture (2) passes through the clamping end of the clamping mechanism; A driving mechanism is provided below the frame (1), the driving mechanism being connected to a rotating mechanism, the driving mechanism driving the rotating mechanism to perform reciprocating rotational motion, a position adjustment mechanism being provided on the rotating mechanism, an angle adjustment mechanism being provided at a movable end of the position adjustment mechanism, a cutting mechanism being provided at a movable end of the angle adjustment mechanism, and the suture line (2) being provided in correspondence with the cutting end of the cutting mechanism.

2. The suture barb structure cutting device with radially adjustable cutting direction according to claim 1, characterized in that: The rotating mechanism includes a mounting frame (18), the mounting frame (18) is located below the frame (1), a rotating ring (17) is fixed on the top surface of the mounting frame (18), a bottom plate (16) is rotatably connected above the rotating ring (17), two driving grooves are opened on the bottom plate (16), the two driving grooves are coaxially arranged, the two driving grooves respectively pass through the diagonal corners of the bottom plate (16), the driving grooves are adapted to the driving mechanism, and the position adjustment mechanism is arranged on the top surface of the bottom plate (16).

3. The suture barb structure cutting device with radially adjustable cutting direction according to claim 2, characterized in that: The driving mechanism includes four gears (14), the four gears (14) are sequentially arranged in a direction perpendicular to the suture line (2), and two adjacent gears (14) are meshed with each other. The gear (14) at one end is rotatably connected to the top of the rotation drive motor (13) through a thrust ball bearing (27). The gear (14) at one end is coaxially fixed to the output shaft of the rotation drive motor (13), and the other gears (14) are rotatably connected to the top of the gear seat (19) through another thrust ball bearing (27); The top ends of the gears (14) at both ends are fixedly connected with a rotation drive shaft (15), and the rotation drive shaft (15) is adapted to and correspondingly arranged with the drive slot.

4. The suture barb structure cutting device with radially adjustable cutting direction according to claim 3, characterized in that: The position adjustment mechanism includes a ball screw (23), which is rotatably connected to the top surface of the base plate (16) through two first bearing seats (21), one end of the ball screw (23) passes through one of the first bearing seats (21) and is coaxially fixed with the output shaft of the position adjustment motor (22), the position adjustment motor (22) is fixed to the top surface of the base plate (16), the ball screw (23) is threadedly connected to a ball slider (24), the ball slider (24) is slidably connected to the top surface of the base plate (16), and a first mounting seat (25) is fixedly installed on the ball slider (24).

5. The suture barb structure cutting device with radially adjustable cutting direction according to claim 4, characterized in that: The angle adjustment mechanism comprises two second bearing seats (32) fixedly connected to the first mounting seat (25), a second mounting seat (33) being rotatably connected between the two second bearing seats (32), one end of the second mounting seat (33) passing through the second bearing seat (32) and coaxially fixedly connected to the output shaft of the angle adjustment motor (20), and the angle adjustment motor (20) being fixedly connected to the first mounting seat (25).

6. The suture barb structure cutting device with radially adjustable cutting direction according to claim 5, characterized in that: The cutting mechanism comprises a cutting cylinder (26), the cutting cylinder (26) being fixedly connected to the second mounting seat (33), the output end of the cutting cylinder (26) being detachably connected to a cutting knife (31), and the suture line (2) and the cutting knife (31) being arranged correspondingly up and down.

7. The suture barb structure cutting device with radially adjustable cutting direction according to claim 1, characterized in that: The clamping mechanism includes a telescopic rod (3), the two ends of the telescopic rod (3) are respectively fixed to the middle of the parallel rod (4), the two ends of the parallel rod (4) are respectively rotatably connected to the top of the rotating rod (5), the middle of the rotating rod (5) is hinged to a limit rod (6), the limit rod (6) is fixed to the frame (1), the bottom end of the rotating rod (5) is hinged to a first movable rod (7), the end of the first movable rod (7) away from the rotating rod (5) is hinged to a push rod (28), the push rod (28) is slidably connected in a sliding sleeve (29), the end of the push rod (28) away from the first movable rod (7) passes through the sliding sleeve (29), and the suture (2) is located between the two push rods (28).

8. The suture barb structure cutting device with radially adjustable cutting direction according to claim 7, characterized in that: One end of the push rod (28) passing through the sliding sleeve (29) is fixedly connected to a rubber column (30), the axis of the rubber column (30) is vertically arranged, and the suture line (2) is in sliding contact with the two rubber columns (30).

9. The suture barb structure cutting device with radially adjustable cutting direction according to claim 7, characterized in that: A support plate (12) is fixedly connected to the frame (1), a mounting plate (11) is fixedly connected to the top of the support plate (12), a vertically arranged upright pole (9) is fixedly connected to the top of the mounting plate (11), a slip ring (10) is vertically slidably connected to the upright pole (9), two second movable rods (8) are hinged on the outer side wall of the slip ring (10), and one end of the second movable rod (8) away from the slip ring (10) is hinged on the two rotating rods (5) respectively.

10. The suture barb structure cutting device with radially adjustable cutting direction according to claim 6, characterized in that: A pressing block is fixedly connected to the frame (1), and the pressing block and the cutting knife (31) are arranged correspondingly up and down, and the suture line (2) passes between the pressing block and the cutting knife (31).

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