Knotless suture barb cutting device

By employing multi-dimensional cutting design and simultaneous debris processing, the precision and efficiency issues of traditional suture barb cutting devices have been resolved, achieving efficient and precise barb cutting while protecting the environment.

CN224588135UActive Publication Date: 2026-08-04HENAN ZHONGDONG MEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN ZHONGDONG MEDICAL TECH CO LTD
Filing Date
2025-09-08
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Traditional suture barb cutting devices suffer from problems such as limited angle, need for manual cleaning of debris, easy dulling of the cutting end, and difficulty in maintaining the locking mechanism, making it difficult to meet the precision, efficiency, and stability requirements of large-scale production.

Method used

It adopts a multi-dimensional cutting design, equipped with a dust collection component and a scraping component. It uses a motor to drive the cutting and locking components to achieve multi-dimensional cutting. The dust collection component handles the debris at the same time, and the scraping component removes the barbs that stick to the cutting end in real time.

Benefits of technology

It achieves precise cutting of suture barbs, avoids missed cuts and incorrect cuts, reduces manual cleaning workload, maintains the sharpness of the cutting end, and improves production efficiency and precision.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224588135U_ABST
    Figure CN224588135U_ABST
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Abstract

The utility model relates to the field of suture processing, and disclose a kind of barbed cutting device of knot-free suture, including cutting table, still including movable base, movably being located on the cutting table;Two cutting parts are used to cut the barb of suture;Locking part is used to lock the suture to be cut, and the locking end of the locking part can rotate;Dust suction assembly is set on the cutting table, scraping assembly is connected to the cutting part, and scraping assembly has scraping end;The scraping assembly of the utility model can synchronously solve the problem of adhering barb of cutting end, when cutting disc high-speed rotation cuts, shell is sleeved outside cutting disc blade part, and the scraping groove opened in it is closely combined with cutting disc blade part, along with cutting disc rotation, scraping groove can scrape the barb scrap adhered in blade part in real time, prevent the dullness of cutting edge caused by scrap accumulation, guarantee the sharpness and accuracy of subsequent cutting.
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Description

Technical Field

[0001] This utility model relates to the field of suture processing, and in particular to a knot-free suture barb cutting device. Background Technology

[0002] Knotless sutures, with their self-fixing function achieved by the barbed structure on their surface, are widely used in the field of medical surgery. The precision of the barb processing directly determines the performance and safety of the sutures. If the cutting is irregular, has burrs, or is incomplete, it may cause tissue damage or insufficient suture strength. Therefore, barb cutting is a key process in the production of knotless sutures.

[0003] Currently, barb cutting in the industry mostly relies on traditional manual operation or simple semi-automatic equipment. Manual methods are inefficient and difficult to control the cutting angle and depth precisely, which can easily lead to inconsistent barb specifications, missed cuts, or damage to the suture itself. Although semi-automatic equipment replaces some manual labor, it has drawbacks such as a single cutting angle, the need for multiple adjustments or parts replacements, the need for manual cleaning of cutting debris, which can pollute the environment and affect accuracy, the tendency for debris to stick to the cutting end, which reduces sharpness, and the inconvenience of locking mechanism fixation and maintenance. These shortcomings make it difficult to meet the requirements of precision, efficiency, and stability for large-scale production. Utility Model Content

[0004] This invention proposes a knot-free suture barb cutting device to solve the problems of traditional suture barb cutting devices, such as limited angle, need for manual cleaning of debris, easy dulling of the cutting end, and difficulty in maintaining the locking mechanism.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a knot-free suture barb cutting device, including a cutting table, and further comprising: A movable base is movably mounted on the cutting table; Both cutting components are mounted on the movable base and are used to cut the barbs of the suture thread; A locking element is provided at both ends of the upper end face of the cutting table and is used to lock the suture to be cut, and the locking end of the locking element is rotatable; A dust extraction component, disposed on the cutting table, is used to simultaneously extract waste material when the cutting workpiece is cutting the barbs of the seam. A scraping assembly is connected to the cutting member and has a scraping end that simultaneously scrapes the barbs adhered to the cutting end of the cutting member when the cutting member cuts the barbs of the suture line.

[0006] Preferably, each of the cutting components includes a first motor mounted on a movable base via a mounting plate, and a cutting disc is mounted on the output end of the first motor.

[0007] Preferably, the locking element includes a second motor mounted via a vertical plate, and a locking head is mounted on the output end of the second motor.

[0008] Preferably, the vacuuming assembly includes: A suction nozzle, wherein the air outlet end of the suction nozzle is connected to a suction tube; The waste collection box and the exhaust fan are both installed inside the cutting table. The cutting table is connected to the waste collection box via an exhaust pipe, and the other end of the suction pipe is connected to the waste collection box.

[0009] Preferably, the scraping assembly includes: A collar is rotatably mounted on the shaft at the output end of the first motor; A sleeve is fitted over the cutting edge of the cutting disc. The sleeve has a scraping groove, and a first connecting strip connects the collar and the sleeve.

[0010] Preferably, a second connecting strip is also connected to the first connecting strip, and the end of the second connecting strip away from the first connecting strip is detachably connected to the mounting plate on the movable base.

[0011] The technical effects and advantages provided by this utility model in the above technical solution are as follows: (1) This application uses two cutting discs, with a movable base and a rotatable locking component to achieve multi-dimensional cutting adjustment. During operation, the locking component fixes the suture and drives it to rotate through a motor. The movable base drives the cutting component to move along the length of the suture. With the design of the cutting discs, the barbs of the suture can be cut in an all-round way, avoiding the problems of missed cuts and wrong cuts caused by the single angle in the traditional cutting method.

[0012] (2) The dust collection component equipped in this application can complete the waste treatment simultaneously during the cutting process. When cutting, the exhaust fan is started to create negative pressure in the waste collection box. The suction nozzle directly sucks the barbed debris generated during cutting into the waste collection box through the suction tube, effectively preventing the debris from falling onto the cutting table or the surrounding environment. Compared with the traditional manual cleaning method, it not only reduces the workload of subsequent cleaning.

[0013] (3) In this application, the scraping component connected to the cutting part can simultaneously solve the problem of barbs adhering to the cutting end. When the cutting disc rotates at high speed, the sleeve is fitted outside the cutting disc blade. The scraping groove opened therein fits tightly with the cutting disc blade. As the cutting disc rotates, the scraping groove can scrape off the barb debris adhering to the blade in real time, preventing the accumulation of debris from dulling the cutting edge and ensuring the sharpness and accuracy of subsequent cutting. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an appearance drawing of the present utility model; Figure 3 This utility model Figure 2 An exterior view from another angle; Figure 4 This is a schematic diagram of the structure of the cutting component and scraping assembly of this utility model; Figure 5 This is a schematic diagram of the scraping component of this utility model; In the diagram: 1. Cutting table; 2. Movable base; 3. Cutting component; 31. First motor; 32. Cutting disc; 4. Locking component; 41. Second motor; 42. Locking head; 5. Dust collection assembly; 51. Nozzle; 52. Suction tube; 53. Waste collection bin; 54. Exhaust fan; 6. Scraping assembly; 61. Collar; 62. Housing; 63. First connecting strip; 64. Scraping groove; 65. Second connecting strip. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-4 As shown, a knot-free suture barb cutting device includes a cutting table 1 and a controller (not shown), as well as a movable base 2, cutting components 3, and locking components 4. The movable base 2 is movably mounted on the cutting table 1, specifically, it can move back and forth along the upper surface of the cutting table 1. There are two cutting components 3, both of which are mounted on the movable base 2. The movable base 2 can be moved by a screw drive or a linear guide rail, and they are symmetrically arranged in the direction of movement of the movable base 2. The cutting components 3 are used to cut the barbs of the suture. The locking components 4 are located at both ends of the upper surface of the cutting table 1 and are used to lock the suture to be cut. The locking end of the locking component 4 is rotatable.

[0018] Each cutting component 3 includes a first motor 31 mounted on a movable base 2 via a mounting plate. A cutting disc 32 is mounted on the output end of the first motor 31. When the first motor 31 is started, the cutting disc 32 can be rotated to cut the barbs of the suture.

[0019] The locking component 4 includes a second motor 41 mounted on a vertical plate. A locking head 42 is mounted on the output end of the second motor 41. The locking head 42 is a long rod in shape and has a through groove so that the end of the sewing thread can be passed through and tied tightly. It should be noted that there are two locking components 4. One locking component 4 consists of the second motor 41 and the locking head 42, while the other locking head 42 does not require the second motor 41.

[0020] Based on the above, in actual use, the staff first fixes and tightens both ends of the suture thread to be cut with two locking pieces 4, and then starts the second motor 41. The output end of the second motor 41 drives the locking head 42 to rotate, which in turn drives the suture thread to be cut to rotate. When the moving base 2 moves to the right, the rear cutting piece 3 starts to cut the barbs, while the left cutting piece 3 does not start. When the moving base 2 moves to the left, the left cutting piece 3 starts to cut the barbs, while the right cutting piece 3 stops.

[0021] In addition, see Figures 1-4 As shown, it also includes a dust collection component 5, which is set on the cutting table 1. The dust collection component 5 is used to simultaneously suck up waste material when the cutting part 3 cuts the barbs of the suture line. The dust collection component 5 includes a suction nozzle 51, a waste collection box 53, and an exhaust fan 54. Both the waste collection box 53 and the exhaust fan 54 are installed inside the cutting table 1. The cutting table 1 is connected to the waste collection box 53 through an exhaust pipe. A suction pipe 52 connects the suction nozzle 51 and the waste collection box 53. When cutting, the exhaust fan 54 can be activated to create negative pressure inside the waste collection box 53. The suction nozzle 51 can then suck up the cut barbs, reducing the amount of barbs falling onto the worktable and reducing the amount of subsequent cleaning work. A filter screen is installed at the connection between the exhaust fan 54 and the waste collection box 53 to prevent barb debris from entering the exhaust fan 54.

[0022] See Figures 1-5 As shown, it also includes a scraping component 6, which is connected to the cutting component 3 and has a scraping end. When the cutting component 3 cuts the barbs of the suture, it simultaneously scrapes the barbs that are adhered to the cutting end of the cutting component 3.

[0023] The scraping component 6 includes: The collar 61 is rotatably mounted on the shaft at the output end of the first motor 31; The housing 62 is fitted over the cutting blade of the cutting disc 32. The housing 62 is provided with a scraping groove 64. A first connecting strip 63 is connected between the collar 61 and the housing 62. A second connecting strip 65 is also connected to the first connecting strip 63. The end of the second connecting strip 65 away from the first connecting strip 63 can be detachably connected to the mounting plate on the movable base 2.

[0024] As described above, when the cutting part 3 cuts the barbs of the suture line, the cutting edge of the cutting disc 32 moves in contact with the scraping groove 64. The hard shell 62 can be used to scrape off the barbs adhering to the cutting edge of the cutting disc 32, so as to avoid affecting subsequent cutting and prevent the adhering barbs from splashing and causing injury to personnel.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A knotless suture barb cutting device, comprising a cutting table (1), characterized in that, Also includes: A movable base (2) is movably mounted on the cutting table (1); Two cutting pieces (3) are installed on the movable base (2) for cutting the barbs of the suture; Locking member (4) is provided at both ends of the upper end face of the cutting table (1) and is used to lock the suture to be cut, and the locking end of the locking member (4) is rotatable; A dust extraction assembly (5) is provided on the cutting table (1) for simultaneously extracting waste material when the cutting piece (3) cuts the barbs of the suture line; A scraping component (6) is connected to the cutting component (3) and has a scraping end. When the cutting component (3) cuts the barbs of the suture line, it simultaneously scrapes the barbs that are adhered to the cutting end of the cutting component (3).

2. A knotless suture barb cutting device according to claim 1, wherein: Each of the cutting components (3) includes a first motor (31) mounted on a movable base (2) via a mounting plate, and a cutting disc (32) is mounted on the output end of the first motor (31).

3. A knotless suture barb cutting device according to Claim 1, wherein: The locking element (4) includes a second motor (41) mounted on a vertical plate, and a locking head (42) is mounted on the output end of the second motor (41).

4. A knotless suture barb cutting device according to Claim 1, wherein: The vacuuming assembly (5) includes: A suction nozzle (51) is provided with a suction tube (52) connected to the air outlet end of the suction nozzle (51). The waste collection box (53) and the exhaust fan (54) are both installed inside the cutting table (1). The cutting table (1) is connected to the waste collection box (53) through an exhaust pipe, and the other end of the suction pipe (52) is connected to the waste collection box (53).

5. A knotless suture barb cutting device according to Claim 2, wherein: The scraping assembly (6) includes: A collar (61) is rotatably mounted on the shaft at the output end of the first motor (31); A sleeve (62) is fitted over the cutting edge of the cutting disc (32). The sleeve (62) is provided with a scraping groove (64). A first connecting strip (63) is connected between the collar (61) and the sleeve (62).

6. A knotless suture barb cutting device according to claim 5, wherein: A second connecting strip (65) is also connected to the first connecting strip (63), and the end of the second connecting strip (65) away from the first connecting strip (63) is detachably connected to the mounting plate on the movable base (2).