A medical suture line inverted stimulation light-assisted cutting device

Abstract

The present invention belongs to the technical field of medical sutures, and in particular, relates to a medical suture barb-stimulating light-assisted cutting device, including a wire-laying assembly and a cutting assembly, etc. The wire-laying assembly is used to lay out the sutures, and the cutting assembly is used to process barbs on the sutures. In the cutting assembly of the present invention, the first cutter for barb cutting of the sutures does not need to swing, but cooperates with the second cutter parallel to its movement direction to achieve the outward warping of the cut barbs, so that the structure for driving the first cutter in the cutting assembly is simpler, effectively reducing the equipment cost.

Description

Technical Field

[0001] The invention belongs to the technical field of medical sutures, and in particular relates to a medical suture inverted stimulation light-assisted cutting device. Background Art

[0002] Sutures are special linear materials used for ligation and hemostasis, suture and tissue suture in surgical operations or trauma treatment. Sutures can be divided into barbed sutures and traditional sutures according to whether they have barbed structures. Barbed sutures have the following advantages over traditional sutures:

[0003] Barbed sutures can significantly shorten the time for wound suturing; barbed sutures can reduce the total cost of wound closure; barbed sutures can reduce the incidence of needle stick injuries during wound suturing; barbed sutures can achieve continuous full-thickness suturing, anchor the tissue through bidirectional barbs, and automatically close the wound without tying knots; barbed sutures can also reduce wound bleeding, and there is no need for an assistant to pull the sutures during the entire suturing process; barbed sutures will evenly distribute tension throughout the wound during suturing, achieving better wound healing effects and improving surgical efficiency; because the barbs are evenly distributed along the barbed sutures, the impact of stress concentration is reduced, reducing the risk of barbed suture breakage during and after surgery.

[0004] Therefore, barbed sutures are increasingly used in surgical operations as an emerging medical material.

[0005] The diameter of the suture is generally less than 5 mm, and the barbs on the suture are generally distributed circumferentially. Only when the barbs are distributed circumferentially can the purpose of knot-free suture be achieved. Patent application number 202023140124.X discloses a circumferential cutting method in which the cutting tool holder rotates. This cutting method will produce cutting errors during movement. During the cutting process, the vibration generated by the suture will cause insufficient cutting accuracy.

[0006] Patent application number 202210635423.5 discloses a barb processing method in which the cutting knife does not move but the suture moves. The movement of the suture, especially the rotation of the suture, will inevitably increase the rotation structure of the related wire roller and the winding roller to process the circumferentially distributed barbs on the suture, but this will inevitably make the equipment structure more complicated. In addition, due to the small diameter of the suture, the movement accuracy and cutting accuracy of the cutting knife are very high, and the equipment has a very high machining accuracy during operation, which leads to a high cost of the equipment.

[0007] like Fig.26As shown, the cutting knife needs to have two degrees of freedom of movement, namely oblique insertion and swinging, when performing cutting processing on the barbs on its suture line. The swinging of the cutting knife can make the barbs tilt up to ensure that the barbs of the suture line have a non-detachment function after suturing is completed. The swinging of the cutting knife will make the structure of the cutting knife more complicated, such as the patent with application number 202410752866.1.

[0008] A specific operation has a certain demand for a specific length and quantity. A whole set of sutures of different length specifications and quantities are wound on different rollers respectively. The cutting and rolling process of such sutures in the production process is more complicated, resulting in a higher production cost of the sutures.

[0009] The present invention designs a medical suture thread inverted stimulation light-assisted cutting device to solve the above problems. Summary of the invention

[0010] Based on this, it is necessary to provide a medical suture barb stimulation light-assisted cutting device for the problems existing in the current barbed sutures. The present invention drives the processing part of the suture to rotate locally through the wire transfer assembly to realize the processing of the circumferentially distributed barbs on the suture by the cutting assembly. There is no need to set a structure that drives the cutting assembly to rotate around the suture or there is no need to set a structure that drives the suture to rotate as a whole, thereby making the equipment structure simpler and saving the production and processing cost of the equipment. At the same time, it avoids the cutting accuracy or large cutting error caused by the rotation of the cutting assembly around the suture. The present invention performs precision processing of barbs on sutures of different diameters through the mutual cooperation of the first cutter and the second cutter in the cutting assembly and the platform. The present invention effectively realizes the precision processing of barbs on sutures of different diameters while requiring low mechanical processing accuracy of its equipment components. The first cutter in the cutting assembly of the present invention that performs barb cutting processing on the suture does not need to swing, but cooperates with the second cutter parallel to its movement direction to achieve the outward warping of the cut barbs, making the structure for driving the first cutter in the cutting assembly simpler, effectively reducing the equipment cost. The present invention uses an attachment component to attach an attachment line in a fluffy state formed by rubbing and pulling a plastic film to the lower side of a suture line to be cut as required, so that the suture line is attached to the attachment line and is wound and collected by the winding and collecting component together with the attachment line. The attachment line can remain in a continuous state after the suture line is cut by a laser cutter and can be effectively wound around the winding wheel of the winding and collecting component, so that the required complete set of suture lines of specified length specifications can be wound around the winding wheel in a continuous state after the barb processing is completed. Due to the simple structure of the attachment component and the winding and collecting component, the cutting and winding process of the suture line in its production process is simpler, reducing the complexity of the equipment structure, and further reducing the production cost of the suture line.

[0011] The above purpose is achieved through the following technical solutions:

[0012] A medical suture barb-stimulated light-assisted cutting device, used for barb processing of sutures, comprising:

[0013] The wire delivery component is used for delivering sutures.

[0014] A cutting assembly is used for processing barbs on a suture, the cutting assembly comprising a first door frame fixed to a platform, a second door frame driven by two first pneumatic push rods sliding obliquely in the first door frame, a third door frame sliding obliquely in the second door frame and provided with a second spring driving the third door frame to move obliquely downward, a first cutter for cutting the barbs on the suture on the platform and with an obliquely adjustable position provided in the third door frame, a second cutter integrally connected to the second door frame sliding obliquely on the front side surface of the first cutter, the front side of the blade of the second cutter having a barb tilting inclined surface for tilting the barbs outward, a top plate for pressing the suture is provided on the front side of the second cutter, a second telescopic rod for oblique telescoping is connected between the top plate and the third door frame, the second telescopic rod is provided with a third spring for driving the extension thereof.

[0015] The first pulling assembly is used for pulling the suture horizontally toward the cutting assembly.

[0016] The thread rotating assembly is used to rotate the barb-processed part of the suture thread back and forth by 240 degrees.

[0017] The attachment component is used for attaching an attachment line to the lower side of a suture thread that has been subjected to barb processing so that the suture thread remains in a continuous state after being cut.

[0018] The cutting component is used to cut off the suture thread after the attachment line is attached.

[0019] The second pulling component is used to pull the suture thread that has been processed with barbs toward the attachment component.

[0020] The winding and collecting component is used for winding and collecting the cut barbed suture thread.

[0021] In one of the embodiments, a semicircular groove cooperating with the suture line is formed at the lower end of the top plate, the second telescopic rod is composed of a second sleeve rod and a second inner rod which are sleeved with each other, the third spring is a compression spring and is arranged in the second sleeve rod, the upper end of the second telescopic rod is fixedly connected to the third door frame through a second connecting rod, the second cutter and the first cutter are slidingly matched with a trapezoidal guide groove and a trapezoidal guide block, the second cutter is fixedly connected to the second door frame through the first connecting rod, the first cutter is arranged on the tool holder, the two sides of the tool holder are slidingly arranged in two third sliding grooves on the inner side of the third door frame, two screws which are respectively threadedly connected to the two sides of the tool holder are rotatably arranged in the third door frame, two third pulleys are installed on the same side ends of the two screws, and the two third pulleys The cam is connected to the chassis by a second synchronous belt transmission, and a knob is installed at the end of one of the screw rods. A locking screw that cooperates with the conical surface of the knob end is threadedly installed on the third door frame. Two second sliding blocks are symmetrically arranged on both sides of the third door frame. The second sliding block is slidably arranged in the second sliding groove on the corresponding side of the second door frame. The upper end of the second sliding block is connected to the top of the second sliding groove through a second spring. Two first sliding blocks are symmetrically arranged on both sides of the second door frame. The first sliding block is slidably arranged in the first sliding groove on the corresponding side of the first door frame. The upper end of the first sliding block is connected to the top of the first sliding groove through a first pneumatic push rod. The top of the first door frame is fixedly connected to the platform through two symmetrically distributed support rods, and two limit blocks cooperating with the lower end of the third door frame are arranged on the platform.

[0022] In one of the embodiments, the platform is provided with a wire groove for positioning the suture wire that moves horizontally, and the platform is fixed above the base plate by a first bracket.

[0023] In one embodiment, the pay-off assembly includes a second bracket fixed to a base plate, a first axle is mounted on the second bracket via a first damper, a first pay-off wheel is mounted on the first axle, a suture wire is wound around the first pay-off wheel, and the second bracket is connected to a first positioning ring via a fixing rod to horizontally guide the suture wire on the first pay-off wheel into a wire groove on the platform.

[0024] In one embodiment, the first pulling assembly includes a third bracket fixed to the base plate, a first clamping wheel for supporting the suture thread from the first accommodating groove on the platform is installed in the third bracket through a second wheel axle, a first pulley is installed on the second wheel axle, the first pulley is connected to the second pulley on the output shaft of the first motor through a first synchronous belt, the first motor is arranged on the base plate, two first telescopic rods distributed front and back and vertically telescopic are arranged on the top of the third bracket, a first wheel seat and a second wheel seat seat are respectively installed at the lower ends of the two first telescopic rods, a second clamping wheel for pressing the suture thread to the first clamping wheel is arranged in the first wheel seat, a pressure wheel for making the suture thread passing through the first clamping wheel and the second clamping wheel move horizontally toward the cutting assembly is arranged in the second wheel seat, the first telescopic rod is composed of a first set rod and a first inner rod which are socketed with each other, and a first spring for driving the first inner rod to extend outward is arranged in the first set rod.

[0025] In one embodiment, the turning assembly includes a fourth bracket fixed to the base plate, two guide seats are arranged on the fourth bracket, a first ring sleeve with a notch is slidably arranged between the two guide seats along the direction parallel to the movement of the suture line, a second ring sleeve with a notch is rotatably arranged in the first ring sleeve, a gear ring with a notch is arranged on the second ring sleeve, the gear ring is meshed with the first gear on the output shaft of the third motor, the third motor is arranged on the outside of the first ring sleeve, a coaxial third sleeve is arranged on one end of the cutting assembly side of the second sleeve, a second accommodating groove is opened at the top of the third sleeve, a fourth slide groove is opened at the top of the second accommodating groove, a sliding rod is vertically slid in the fourth slide groove, a pressure block cooperating with the suture line is arranged at the lower end of the sliding rod, a second pneumatic push rod driving the sliding rod to move is arranged in the fourth slide groove, a second motor is arranged on the fourth bracket, a crank wheel is arranged on the output shaft of the second motor, and a connecting rod is hinged between the crank wheel and the other end of the first ring sleeve.

[0026] In one embodiment, the second pulling assembly includes a fifth bracket fixed to the base plate, a third clamping wheel for supporting the suture thread is installed in the fifth bracket through a third wheel axle, a fourth pulley is installed on the third wheel axle, the fourth pulley is transmission-connected to the fifth pulley on the output shaft of the fourth motor through a third synchronous belt, the fourth motor is arranged on the base plate, a third telescopic rod for vertical extension is arranged on the top of the fifth bracket, a third wheel seat is arranged at the lower end of the third telescopic rod, a fourth clamping wheel for pressing the suture thread against the third clamping wheel is arranged in the third wheel seat, the third telescopic rod is composed of a third sleeve rod and a third inner rod which are sleeved with each other, and a fourth spring for driving the third inner rod to extend outward is arranged in the third sleeve rod.

[0027] In one embodiment, the attachment assembly includes a sixth bracket fixed to the base plate, the sixth bracket is provided with a fifth clamping wheel for supporting the suture line, the sixth bracket is provided with a fourth wheel axle through a second damper, the fourth wheel axle is provided with a second pay-off wheel, the second pay-off wheel is wound with an attachment line, the attachment line bypasses the fifth clamping wheel and is horizontally pulled to the winding and collecting assembly, the top of the sixth bracket is provided with a fourth telescopic rod that is vertically telescopic, the lower end of the fourth telescopic rod is provided with a fourth wheel seat, the fourth wheel seat is provided with a sixth clamping wheel for pressing the suture line against the attachment line on the fifth clamping wheel, the fourth telescopic rod is composed of a fourth sleeve rod and a fourth inner rod that are mutually socketed, the fourth sleeve rod is provided with a fifth spring that drives the fourth inner rod to extend outward, and the sixth bracket is connected to a second positioning ring that guides the attachment line from the second pay-off wheel to the fifth clamping wheel through a third connecting rod.

[0028] In one embodiment, the cutting assembly includes a seventh bracket fixed to the base plate, the seventh bracket is provided with two guide sleeves, two guide rods are provided in the two guide sleeves for horizontally moving toward or away from each other, two symmetrically distributed clamps are provided on the two guide rods, two arc plates cooperating with the suture are provided at the upper ends of the two clamps, a fifth motor is provided on the seventh bracket, a second gear is provided on the output shaft of the fifth motor, the second gear is meshed with the racks on the two guide rods, and the seventh bracket is connected to a laser cutter through a fourth connecting rod for cutting the suture from the attachment line clamped by the two clamps.

[0029] In one embodiment, the winding assembly includes an eighth bracket fixed to the base plate, and a winding wheel for axially winding the suture thread in a single layer is installed on the eighth bracket through a fifth wheel axle. The fifth wheel axle is transmission-connected to the output shaft of the sixth motor on the eighth bracket, and the eighth bracket is connected to a positioning wheel through a fifth connecting rod so that the suture thread is exactly opposite to the laser cutter.

[0030] The beneficial effects of the present invention are:

[0031] 1. The present invention uses a wire turning assembly to drive the processing part of the suture to rotate locally to realize the processing of circumferentially distributed barbs on the suture by the cutting assembly, without the need to set a structure to drive the cutting assembly to rotate around the suture or a structure to drive the suture to rotate as a whole, thereby making the device structure simpler and saving the production and processing cost of the device. At the same time, it avoids insufficient cutting accuracy or large cutting error caused by the cutting assembly rotating around the suture.

[0032] 2. The present invention performs precision processing of barbs on sutures of different diameters by the mutual cooperation between the first cutter and the second cutter in the cutting assembly and the platform. The present invention effectively realizes precision processing of barbs on sutures of different diameters while having low requirements on the mechanical processing accuracy of its equipment components.

[0033] 3. The first cutter for cutting the barbs of the suture thread in the cutting assembly of the present invention does not need to swing, but cooperates with the second cutter parallel to its movement direction to achieve the outward curling of the cut barbs, making the structure for driving the first cutter in the cutting assembly simpler, effectively reducing the equipment cost.

[0034] 4. The present invention uses an attachment component to attach a fluffy attachment line formed by rubbing and pulling a plastic film to the lower side of the suture to be cut as required, so that the suture is attached to the attachment line and is wound and collected by the winding and collecting component together with the attachment line. The attachment line can remain in a continuous state after the suture is cut by the laser cutter and can be effectively wound on the winding wheel of the winding and collecting component, so that the required set of sutures of specified length specifications can be wound on the winding wheel in a continuous state after the barb processing is completed. Due to the simple structure of the attachment component and the winding and collecting component, the cutting and winding process of the suture in its production process is simpler, reducing the complexity of the equipment structure, and further reducing the production cost of the suture.

[0035] 5. The cutting assembly of the present invention can perform accurate barb processing on sutures of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is the present invention and its overall cross-sectional view;

[0037] Figure 2 is a cross-sectional view of a wire-paying assembly in the present invention;

[0038] Figure 3 is a side sectional view of the first pulling assembly in the present invention;

[0039] Figure 4 is a cross-sectional view of the first pulling assembly in the present invention;

[0040] Figure 5 is a schematic diagram of a cutting assembly in the present invention;

[0041] Figure 6 is a side sectional view of the cutting assembly of the present invention;

[0042] Figure 7 is a top cross-sectional view of the cutting assembly of the present invention;

[0043] Figure 8 is a cross-sectional view of the first cutter adjustment structure in the cutting assembly;

[0044] Fig. 9 It is a schematic diagram of the first cutter;

[0045] Fig.10 are two schematic diagrams of the second cutter;

[0046] Fig.11 It is a schematic diagram of the transfer assembly;

[0047] Fig.12 is a side cross-sectional view of the line transfer assembly;

[0048] Fig.13 is a cross-sectional view of the line transfer assembly;

[0049] Fig.14 It is a schematic diagram of the third ring sleeve in the transfer assembly;

[0050] Fig.15 is a cross-sectional view of the second pulling assembly in the present invention;

[0051] Fig.16 is a side cross-sectional view of the attached assembly and the truncated assembly;

[0052] Fig.17 is a cross-sectional view of a truncated component;

[0053] Fig.18 is a horizontal section through the truncated component;

[0054] Fig.19 is a cross-sectional view of the winding assembly;

[0055] Fig. 20 It is a schematic diagram of the platform structure;

[0056] Fig.21 It is a schematic diagram of the structure of the suture thread processed by the present invention;

[0057] Fig. 22 It is a schematic diagram of two states before and after the attachment line and the truncation component on the suture line act;

[0058] Fig.23 Schematic diagram of two states of the first cutter and the second cutter cutting and processing barbs on the suture line;

[0059] Fig.24 It is a schematic diagram of the sequence of the first cutter processing barbs on the suture line in the present invention;

[0060] Fig.25 It is a schematic diagram of the state in which the wire transfer assembly cooperates with the first cutter in the cutting assembly to process the measurement;

[0061] Fig.26 It is a schematic diagram of the existing suture barb processing steps;

[0062] Name of the label in the figure:

[0063] 101, bottom plate; 102, platform; 103, wire groove; 104, first receiving groove; 105, suture line; 106, notch; 107, barb; 108, first bracket;

[0064] 200, pay-off assembly; 201, second bracket; 202, first damper; 203, first wheel shaft; 204, first pay-off wheel; 205, first positioning ring; 206, fixing rod;

[0065] 300, first pulling assembly; 301, third bracket; 302, first clamping wheel; 303, second wheel shaft; 304, first pulley; 305, first synchronous belt; 306, second pulley; 307, first telescopic rod; 308, first set rod; 309, first spring; 310, first inner rod; 311, first wheel seat; 312, second clamping wheel; 313, second wheel seat; 314, pressure wheel; 316, first motor;

[0066] 400, cutting assembly; 401, support rod; 402, first door frame; 403, first slide; 404, first pneumatic push rod; 405, first slider; 406, second door frame; 407, second slide; 408, second spring; 409, second slider; 410, third door frame; 411, third slide; 412, screw; 413, third pulley; 414, second synchronous belt; 415, knob; 416, locking screw; 417, knife holder; 418, first cutter; 419, trapezoidal guide groove; 420, second cutter; 421, warping bevel; 422, trapezoidal guide block; 423, first connecting rod; 424, second connecting rod; 425, second telescopic rod; 426, second set rod; 427, third spring; 428, second inner rod; 429, limit block; 430, top plate;

[0067] 500, turning line assembly; 501, fourth bracket; 502, guide seat; 503, first ring sleeve; 504, connecting rod; 505, crank wheel; 506, second motor; 507, second ring sleeve; 508, gear ring; 509, first gear; 510, third motor; 511, third ring sleeve; 513, second receiving groove; 514, fourth slide groove; 515, second pneumatic push rod; 516, slide rod; 517, pressing block;

[0068] 600, second pulling assembly; 601, fifth bracket; 602, third wheel shaft; 603, third clamping wheel; 604, fourth pulley; 605, third synchronous belt; 606, fifth pulley; 607, fourth motor; 608, third telescopic rod; 609, third set rod; 610, fourth spring; 611, third inner rod; 612, third wheel seat; 613, fourth clamping wheel;

[0069] 700, attachment assembly; 701, sixth bracket; 702, fifth clamping wheel; 703, second pay-off wheel; 704, fourth wheel shaft; 705, second damper; 706, attachment line; 707, third connecting rod; 708, second positioning ring; 709, fourth telescopic rod; 710, fourth set rod; 711, fourth inner rod; 712, fifth spring; 713, fourth wheel seat; 714, sixth clamping wheel;

[0070] 800, truncation assembly; 801, seventh bracket; 802, guide sleeve; 803, guide rod; 804, clamping plate; 805, arc plate; 806, second gear; 807, fifth motor; 808, fourth connecting rod; 809, laser cutter; 810, rack;

[0071] 900, winding and collecting assembly; 901, eighth bracket; 902, winding wheel; 903, sixth motor; 904, fifth connecting rod; 905, positioning wheel; 906, fifth wheel shaft. DETAILED DESCRIPTION

[0072] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0073] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, 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 to the present invention.

[0074] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0075] like Figure 1-Figure 21 As shown, a laser-assisted cutting device for barbs 107 of medical suture 105 is used for barb 107 processing of suture 105, comprising:

[0076] The wire-delivering assembly 200 is used for delivering the suture 105 .

[0077] The cutting assembly 400 is used for processing the barbs 107 on the suture 105. The cutting assembly 400 includes a first door frame 402 fixed to the platform 102, a second door frame 406 driven by two first pneumatic push rods 404 slides obliquely in the first door frame 402, a third door frame 410 slides obliquely in the second door frame 406 and is provided with a second spring 408 that drives the third door frame 410 to move obliquely downward, and a cutting mechanism 107 for the suture 105 on the platform 102 is provided in the third door frame 410. The position of the first cutter 418 can be adjusted obliquely. A second cutter 420 connected to the second door frame 406 is slid obliquely on the front side of the first cutter 418. The front side of the blade of the second cutter 420 has a barb bevel 421 for causing the barb 107 to bend outward. A top plate 430 for pressing the suture thread 105 is provided on the front side of the second cutter 420. An obliquely telescopic second telescopic rod 425 is connected between the top plate 430 and the third door frame 410. The second telescopic rod 425 is provided with a third spring 427 for driving the extension thereof.

[0078] The first pulling assembly 300 is used to pull the suture 105 horizontally toward the cutting assembly 400 .

[0079] The thread rotating assembly 500 is used to rotate the processed portion of the barbs 107 of the suture thread 105 back and forth by 240 degrees.

[0080] The attachment assembly 700 is used to attach an attachment line 706 to the lower side of the suture line 105 that has been processed with barbs 107 so that the suture line 105 remains continuous after being cut.

[0081] The cutting component 800 is used to cut the suture thread 105 after the attachment line 706 is attached.

[0082] The second pulling component 600 is used to pull the suture thread 105 processed with the barbs 107 toward the attachment component 700 .

[0083] The winding and collecting assembly 900 is used to wind and collect the suture thread 105 with barbs 107 that has been cut.

[0084] In a further embodiment, Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9, Fig.10 As shown, the lower end of the top plate 430 is provided with a semicircular groove that cooperates with the suture line 105, the second telescopic rod 425 is composed of a second sleeve rod 426 and a second inner rod 428 that are sleeved with each other, the third spring 427 is a compression spring and is arranged in the second sleeve rod 426, the upper end of the second telescopic rod 425 is fixedly connected to the third door frame 410 through a second connecting rod 424, and the second cutter 420 and the first cutter 418 are provided with a sliding cooperation between the trapezoidal guide groove 419 and the trapezoidal guide block 422 The second cutter 420 is fixedly connected to the second door frame 406 through a first connecting rod 423, the first cutter 418 is arranged on the knife frame 417, and the two sides of the knife frame 417 are slidably arranged in two third sliding grooves 411 inside the third door frame 410, and the third door frame 410 is rotatably provided with two screw rods 412 respectively threadedly connected to the two sides of the knife frame 417, and the same side ends of the two screw rods 412 are equipped with two third pulleys 413, and the two third pulleys 413 are connected to the second door frame 410 through the second The synchronous belt 414 is connected for transmission, a knob 415 is installed at the end of one of the screw rods 412, a locking screw 416 which cooperates with the conical surface of the end of the knob 415 is threadedly installed on the third door frame 410, two second sliders 409 are symmetrically arranged on both sides of the third door frame 410, the second slider 409 is slidably arranged in the second slide groove 407 on the corresponding side of the second door frame 406, the upper end of the second slider 409 is connected to the top of the second slide groove 407 through the second spring 408, two first sliders 405 are symmetrically arranged on both sides of the second door frame 406, the first slider 405 is slidably arranged in the first slide groove 403 on the corresponding side of the first door frame 402, the upper end of the first slider 405 is connected to the top of the first slide groove 403 through the first pneumatic push rod 404, the top of the first door frame 402 is fixedly connected to the platform 102 through two symmetrically distributed support rods 401, and two limit blocks 429 which cooperate with the lower end of the third door frame 410 are arranged on the platform 102.

[0085] In a further embodiment, Figure 1 , Fig. 20 As shown, the platform 102 is provided with a wire groove 103 for positioning the horizontally moving suture wire 105 , and the platform 102 is fixed above the base plate 101 through a first bracket 108 .

[0086] In a further embodiment, Figure 1 , Figure 2As shown, the pay-off assembly 200 includes a second bracket 201 fixed to the base plate 101, a first axle 203 is installed on the second bracket 201 through a first damper 202, a first pay-off wheel 204 is installed on the first axle 203, a suture 105 wire is wound on the first pay-off wheel 204, and the second bracket 201 is connected to a first positioning ring 205 through a fixing rod 206 for horizontally guiding the suture 105 on the first pay-off wheel 204 to the wire groove 103 on the platform 102.

[0087] In a further embodiment, Figure 1 , Figure 3 , Figure 4 As shown, the first pulling assembly 300 includes a third bracket 301 fixed on the bottom plate 101, a first clamping wheel 302 for supporting the suture 105 from the first receiving groove 104 on the platform 102 is installed in the third bracket 301 through a second wheel shaft 303, a first pulley 304 is installed on the second wheel shaft 303, the first pulley 304 is connected to the second pulley 306 on the output shaft of the first motor 316 through a first synchronous belt 305, the first motor 316 is arranged on the bottom plate 101, and two first pulleys 306 are arranged on the top of the third bracket 301 and are distributed front and back and are vertically retractable. The telescopic rod 307, the lower ends of the two first telescopic rods are respectively installed with a first wheel seat 311 and a second wheel seat 313, the first wheel seat 311 is provided with a second clamping wheel 312 for pressing the suture 105 to the first clamping wheel 302, the second wheel seat 313 is provided with a pressing wheel 314 for making the suture 105 passing through the first clamping wheel 302 and the second clamping wheel 312 move horizontally toward the cutting assembly 400, the first telescopic rod 307 is composed of a first sleeve rod 308 and a first inner rod 310 which are mutually sleeved, and the first sleeve rod 308 is provided with a first spring 309 for driving the first inner rod 310 to extend outward.

[0088] In a further embodiment, Fig.11 , Fig.12 , Fig.13 , Fig.14As shown, the turning assembly 500 includes a fourth bracket 501 fixed to the bottom plate 101, and two guide seats 502 are arranged on the fourth bracket 501. A first ring sleeve 503 with a notch is slidably arranged between the two guide seats 502 in a direction parallel to the movement of the suture line 105. A second ring sleeve 507 with a notch is rotatably arranged in the first ring sleeve 503, and a gear ring 508 with a notch is arranged on the second ring sleeve 507. The gear ring 508 is meshed with a first gear 509 on the output shaft of the third motor 510. The third motor 510 is arranged on the outside of the first ring sleeve 503, and one end of the second ring sleeve 507 on the cutting assembly 400 side A coaxial third sleeve is provided on it, a second accommodating groove 513 is provided on the top of the third sleeve, a fourth slide groove 514 is provided on the top of the second accommodating groove 513, a slide rod 516 is vertically slidable in the fourth slide groove 514, a pressure block 517 cooperating with the suture thread 105 is provided at the lower end of the slide rod 516, a second pneumatic push rod 515 driving the slide rod 516 to move is provided in the fourth slide groove 514, a second motor 506 is provided on the fourth bracket 501, a crank wheel 505 is provided on the output shaft of the second motor 506, and a connecting rod 504 is hinged between the crank wheel 505 and the other end of the first ring sleeve 503.

[0089] In a further embodiment, Fig.15 As shown, the second pulling assembly 600 includes a fifth bracket 601 fixed on the bottom plate 101, a third clamping wheel 603 for supporting the suture 105 is installed in the fifth bracket 601 through a third wheel shaft 602, a fourth pulley 604 is installed on the third wheel shaft 602, and the fourth pulley 604 is connected to the fifth pulley 606 on the output shaft of the fourth motor 607 through a third synchronous belt 605, and the fourth motor 607 is arranged on the bottom plate 101. A vertically retractable third telescopic rod 608 is provided at the top of the fifth bracket 601, a third wheel seat 612 is provided at the lower end of the third telescopic rod 608, a fourth clamping wheel 613 for pressing the suture 105 against the third clamping wheel 603 is provided in the third wheel seat 612, the third telescopic rod 608 is composed of a third sleeve rod 609 and a third inner rod 611 which are sleeved with each other, and a fourth spring 610 is provided in the third sleeve rod 609 to drive the third inner rod 611 to extend outward.

[0090] In a further embodiment, Fig.16 , Fig.17As shown, the attachment assembly 700 includes a sixth bracket 701 fixed to the bottom plate 101, a fifth clamping wheel 702 for supporting the suture 105 is arranged in the sixth bracket 701, a fourth wheel shaft 704 is arranged on the sixth bracket 701 through a second damper 705, a second pay-off wheel 703 is arranged on the fourth wheel shaft 704, an attachment line 706 is wound around the second pay-off wheel 703, and the attachment line 706 bypasses the fifth clamping wheel 702 and is horizontally pulled to the winding assembly 900, and a fourth telescopic rod 709 that is vertically telescopic is arranged on the top of the sixth bracket 701. A fourth wheel seat 713 is provided at the lower end of the fourth telescopic rod 709, and a sixth clamping wheel 714 is provided in the fourth wheel seat 713 for pressing the suture thread 105 against the attachment line 706 on the fifth clamping wheel 702. The fourth telescopic rod 709 is composed of a fourth sleeve rod 710 and a fourth inner rod 711 which are sleeved with each other, and a fifth spring 712 is provided in the fourth sleeve rod 710 for driving the fourth inner rod 711 to extend outward. The sixth bracket 701 is connected to a second positioning ring 708 for guiding the attachment line 706 from the second pay-off wheel 703 to the fifth clamping wheel 702 through a third connecting rod 707.

[0091] In a further embodiment, Fig.17 , Fig.18 As shown, the truncation component 800 includes a seventh bracket 801 fixed to the base plate 101, two guide sleeves 802 are arranged on the seventh bracket 801, two guide rods 803 are arranged in the two guide sleeves 802 for horizontal movement toward or away from each other, two symmetrically distributed clamps 804 are arranged on the two guide rods 803, two arc plates 805 cooperating with the suture 105 are arranged on the upper ends of the two clamps 804, a fifth motor 807 is arranged on the seventh bracket 801, a second gear 806 is arranged on the output shaft of the fifth motor 807, the second gear 806 is meshed with the racks 810 on the two guide rods 803, and the seventh bracket 801 is connected to a laser cutter 809 through a fourth connecting rod 808 for cutting the suture 105 from the attachment line 706 clamped by the two clamps 804.

[0092] In a further embodiment, Fig.19 As shown, the winding assembly 900 includes an eighth bracket 901 fixed to the base plate 101, and a winding wheel 902 for axially single-layer winding of the suture 105 is installed on the eighth bracket 901 through a fifth wheel axle 906, and the fifth wheel axle 906 is connected to the output shaft of the sixth motor 903 on the eighth bracket 901 through a driving connection, and the eighth bracket 901 is connected to a positioning wheel 905 through a fifth connecting rod 904 so that the suture 105 is exactly opposite to the laser cutter 809.

[0093] The first motor 316 , the second motor 506 , the third motor 510 , the fourth motor 607 , the fifth motor 807 , and the sixth motor 903 in the present invention are all servo motors.

[0094] The present invention drives the processing part of the suture 105 to rotate locally by the turning assembly 500 to realize the processing of the circumferentially distributed barbs 107 on the suture 105 by the cutting assembly 400, and there is no need to set a structure to drive the cutting assembly 400 to rotate around the suture 105 or there is no need to set a structure to drive the suture 105 to rotate as a whole, thereby making the device structure simpler and saving the production and processing cost of the device. At the same time, it avoids the cutting accuracy or large cutting error caused by the cutting assembly 400 rotating around the suture 105. The present invention performs precision processing of the barbs 107 on sutures 105 of different diameters through the mutual cooperation of the first cutter 418 and the second cutter 420 in the cutting assembly 400 and the platform 102. The present invention effectively realizes the precision processing of barbs 107 on sutures 105 of different diameters while having low requirements on the mechanical processing accuracy of its equipment components. The first cutter 418 for cutting the barbs 107 of the suture 105 in the cutting assembly 400 of the present invention does not need to swing, but cooperates with the second cutter 420 parallel to its movement direction to achieve the outward curling of the cut barbs 107, making the structure for driving the first cutter 418 in the cutting assembly 400 simpler, effectively reducing the equipment cost. The present invention attaches a fluffy attachment line 706 formed by rubbing and pulling a plastic film to the lower side of the suture 105 to be cut as required through the attachment component 700, so that the suture 105 is attached to the attachment line 706 and is wound and collected by the winding and collecting component 900 together with the attachment line 706. The attachment line 706 can remain in a continuous state after the suture 105 is cut by the laser cutter 809 and can be effectively wound on the winding wheel 902 of the winding and collecting component 900, so that the required set of sutures 105 of specified length specifications can be wound on the winding wheel 902 in a continuous state after the barbs 107 are processed. Due to the simple structure of the attachment component 700 and the winding and collecting component 900, the cutting and winding process of the suture 105 in its production process is simpler, reducing the complexity of the equipment structure, and further reducing the production cost of the suture 105.

[0095] The operation process of the present invention is as follows:

[0096] In the initial state, the suture 105 on the first pay-off wheel 204 passes through the first positioning ring 205, the first pulling assembly 300, the cutting assembly 400, the wire rotation assembly 500, the second pulling assembly 600, the attachment assembly 700 and the cutting assembly 800 to reach the winding assembly 900, and the attachment line 706 on the second pay-off wheel 703 passes through the second positioning ring 708 and the fifth clamping wheel 702 and is wound around the winding wheel 902 with the suture 105, and the first clamping wheel 302 and the second clamping wheel 312 clamp the suture 105 , the pressing wheel 314 presses the suture 105 into the wire groove 103 on the platform 102, the top plate 430, the first cutter 418 and the second cutter 420 are all separated from the suture 105, the second slider 409 is located at the bottom of the corresponding second slide groove 407 on the second door frame 406, the second spring 408 is in a compressed state, the suture 105 is located in the second ring sleeve 507, the connecting rod 504 is parallel to the suture 105, and the distance between the first ring sleeve 503 and the axis of the crank wheel 505 is the largest, and the pressing block 517 is separated from the suture 105. The third clamping wheel 603 and the fourth clamping wheel 613 clamp the suture 105, the two clamping plates 804 are separated from the attachment line 706, and the two arc plates 805 are separated from the suture 105.

[0097] The seventh pulling assembly, the cutting assembly 400, the wire rotation assembly 500, the second pulling assembly 600, the attachment assembly 700, the cutting assembly 800 and the winding assembly 900 are started. The sixth motor 903 in the winding assembly 900 drives the winding wheel 902 to intermittently wind the suture 105 and the attachment line 706. The suture 105 drives the first pay-off wheel 204 to rotate to pay out the suture 105 wire. The first pulling assembly 300 and the second pulling assembly 600 intermittently and synchronously pull the suture 105 on both sides of the cutting assembly 400 and the wire rotation assembly 500, and the first pulling assembly 300, the second pulling assembly 600 and the winding assembly 900 pull the suture 105 synchronously and at the same speed.

[0098] When the first pulling assembly 300, the second pulling assembly 600, and the winding assembly 900 stop, the second motor 506 of the rotating assembly 500 drives the first ring 503 to reset and slide back in the direction of the cutting assembly 400 through the crank wheel 505 and the connecting rod 504, and at the same time, the pressing block 517 is separated from the suture 105. When the first pulling assembly 300, the second pulling assembly 600, and the winding assembly 900 are running, the second motor 506 of the rotating assembly 500 runs and drives the first ring 503 and the suture 105 to move synchronously through the crank wheel 505 and the connecting rod 504, and the pressing block 517, driven by the second pneumatic push rod 515, presses the suture 105 into the third ring 511 and assists the first pulling assembly 300 and the second pulling assembly 600 to pull the suture 105, so as to prevent the suture 105 part between the first pulling assembly 300 and the second pulling assembly 600 from drooping downward due to excessive length.

[0099] When the suture 105 is installed in the turning assembly 500, the notch of the first ring sleeve 503 is opposite to the notches on the second ring sleeve 507, the gear ring 508 and the third ring sleeve 511, and the pressing block 517 is located in the second receiving groove 513 at the top of the third ring sleeve 511, and the suture 105 is radially placed into the second ring sleeve 507 and the third ring sleeve 511 from the notches of the four.

[0100] like Fig.21 , Fig. 22 , Fig.23 As shown, when the suture 105 stops moving, the distance between the third ring 511 and the cutting assembly 400 is closest, and the two clamps 804 in the cutting assembly 800 clamp the corresponding parts of the attachment line 706 under the drive of the fifth motor 807 and make the corresponding parts of the attachment line 706 deform and concentrate below the suture 105, so as to avoid the laser cutter 809 cutting the attachment line 706 when cutting the suture 105, and ensure that the suture 105 is still in a continuous state after being cut due to the existence of the attachment line 706, which is conducive to the smooth winding of the suture 105 on the winding wheel 902 after being cut at equal lengths. At this time, the two first pneumatic push rods 404 in the cutting assembly 400 drive the second door frame 406 to move obliquely downward, and the second door frame 406 drives the third door frame 410 to move obliquely downward to the limit through the two second springs 408. The lower end of the third door frame 410 is against the limit block 429 and the platform 102. At the same time, the third door frame 410 drives the first cutter 418 on the knife holder 417 through the two screws 412 to cut the groove 106 on the suture line 105 and form the barb 107. Then As the two first pneumatic push rods 404 drive the second door frame 406 to continue to move obliquely downward, the two second springs 408 are further compressed, and the second door frame 406 drives the second cutter 420 to move to the limit relative to the first cutter 418. The blade of the second cutter 420 is inserted into the cutting groove 106 along the front side of the first cutter 418 and is flush with the blade of the first cutter 418. The tilted thorn slope 421 on the front side of the blade of the second cutter 420 makes the barb 107 tilt outward and protrude from the wall of the suture line 105. While the first cutter 418 cuts the barb 107 on the suture line 105, the third door frame 410 drives the top plate 430 to press the suture line 105 through the second telescopic rod 425, and the third spring 427 in the second telescopic rod 425 is further compressed to prevent the first cutter 418 from causing the suture line 105 to move when cutting the suture line 105, thereby improving the accuracy of the first cutter 418 in cutting the barb 107 on the suture line 105. The attachment line 706 is attached to the lower side of the suture 105 because the barbs 107 on the suture 105 enter the attachment line 706 under the squeezing of the fifth clamping wheel 702 and the sixth clamping wheel 714, so that the attachment line 706 is hooked on the suture 105 to form attachment.

[0101] like Fig.24 , Fig.25 As shown, after the first cutter 418 and the second cutter 420 in the cutting assembly 400 complete cutting the first groove 106 on the suture 105 and forming the barb 107, the two first pneumatic push rods 404 drive the top plate 430, the first cutter 418, and the second cutter 420 to reset and disengage from the suture 105, and the first pulling assembly 300, the second pulling assembly 600 and the winding assembly 900 pull the suture 105 to move. At the same time, the second pneumatic push rod 515 is started to drive the pressing block 517 to press the suture 105 and, driven by the second motor 506, together with the first pulling assembly 300, the second pulling assembly 600 and the winding assembly 900, pull the suture 105 to move a certain amplitude, and the distance between the first ring sleeve 503 and the axis of the crank wheel 505 is the smallest, and then, The third motor 510 is started, and the third motor 510 drives the second ring sleeve 507 and the third ring sleeve 511 to rotate 120 degrees through the first gear 509 and the ring gear 508. The third ring sleeve 511 and the pressing block 517 drive the suture line 105 where the cutting assembly 400 is located to perform a local rotation of 120 degrees. The first pneumatic push rod 404 is started to drive the first cutter 418 and the second cutter 420 to cut a second groove 106 on the suture line 105 and form a barb 107. Then, the second pneumatic push rod 515 is started to drive the pressing block 517 to disengage from the suture line 105 and the second motor 506 is started to drive the first ring sleeve 503, the second ring sleeve 507 and the third ring sleeve 511 to axially retreat and reset. The rotated part of the suture line 105 automatically rotates back to its original state.

[0102] Next, the two first pneumatic push rods 404 drive the top plate 430, the first cutter 418, and the second cutter 420 to reset and disengage the suture 105, and the first pulling assembly 300, the second pulling assembly 600, and the winding assembly 900 pull the suture 105 to move. At the same time, the second pneumatic push rod 515 is started to drive the pressing block 517 to press the suture 105 and pull the suture together with the first pulling assembly 300, the second pulling assembly 600, and the winding assembly 900 under the drive of the second motor 506. The line 105 moves a certain amplitude, and the distance between the first ring sleeve 503 and the axis of the crank wheel 505 is minimized. Then, the first pneumatic push rod 404 is started to drive the first cutter 418 and the second cutter 420 to cut a third groove 106 on the suture line 105 and form a barb 107. Then, the second pneumatic push rod 515 is started to drive the pressure block 517 to detach from the suture line 105 and the second motor 506 is started to drive the first ring sleeve 503, the second ring sleeve 507 and the third ring sleeve 511 to axially retreat and reset.

[0103] Next, the two first pneumatic push rods 404 drive the top plate 430, the first cutter 418, and the second cutter 420 to reset and disengage the suture 105, and the first pulling assembly 300, the second pulling assembly 600, and the winding assembly 900 pull the suture 105 to move. At the same time, the second pneumatic push rod 515 is started to drive the pressing block 517 to press the suture 105 and pull the suture 105 to move a certain amplitude together with the first pulling assembly 300, the second pulling assembly 600, and the winding assembly 900 under the drive of the second motor 506. The distance between the first ring 503 and the axis of the crank wheel 505 is the smallest, and then the third motor 510 is started. The third motor 510 drives the first gear 509 and the ring gear 509 to move the suture 105. 08 drives the second ring sleeve 507 and the third ring sleeve 511 to rotate 120 degrees in the opposite direction, the third ring sleeve 511 and the pressing block 517 drive the suture line 105 where the cutting assembly 400 is located to undergo a local reverse rotation of 120 degrees, the first pneumatic push rod 404 is started to drive the first cutter 418 and the second cutter 420 to cut a fourth groove 106 on the suture line 105 and form a barb 107, then, the second pneumatic push rod 515 is started to drive the pressing block 517 to detach from the suture line 105 and the second motor 506 is started to drive the first ring sleeve 503, the second ring sleeve 507 and the third ring sleeve 511 to axially retreat and reset, and the reversely rotated part of the suture line 105 automatically rotates back to its original state.

[0104] Starting from the first cutter 418 and the second cutter 420 processing the fifth groove 106 and the barbs 107 on the suture 105 , the above process can be repeated to complete the processing of the barbs 107 distributed circumferentially on the suture 105 .

Claims

1. A medical suture barb light-assisted cutting device for barbing sutures, which is used for barbing sutures, characterized in that: include: A thread-delivering assembly, used for delivering sutures; A cutting assembly, used for processing barbs on a suture, the cutting assembly comprising a first door frame fixed to a platform, a second door frame driven by two first pneumatic push rods sliding obliquely in the first door frame, a third door frame sliding obliquely in the second door frame and provided with a second spring driving the third door frame to move obliquely downward, a first cutter for cutting the barbs on the suture on the platform and whose position can be adjusted obliquely in the third door frame is provided in the third door frame, a second cutter integrally connected to the second door frame sliding obliquely on the front side surface of the first cutter, the front side of the blade of the second cutter having a barb tilting inclined surface for tilting the barbs outward, a top plate for pressing the suture is provided on the front side of the second cutter, a second telescopic rod for oblique telescoping is connected between the top plate and the third door frame, and a third spring for driving the extension of the second telescopic rod is provided in the second telescopic rod; A first pulling assembly, used to pull the suture horizontally toward the cutting assembly; A thread rotating assembly is used to rotate the barb-processed part of the suture thread back and forth by 240 degrees; An attachment component, used for attaching an attachment line to the lower side of the suture line after the barb processing is completed so that the attachment line remains in a continuous state after being cut; A cutting component, used for cutting off the suture thread after the attachment line is attached; A second pulling component is used to pull the suture thread that has been processed with barbs toward the attachment component; The winding and collecting component is used for winding and collecting the cut barbed suture thread.

2. The medical suture thread inverted stimulation light-assisted cutting device according to claim 1, characterized in that: The lower end of the top plate is provided with a semicircular groove that cooperates with the suture line, the second telescopic rod is composed of a second set rod and a second inner rod that are sleeved with each other, the third spring is a compression spring and is arranged in the second set rod, the upper end of the second telescopic rod is fixedly connected to the third door frame through the second connecting rod, the second cutter and the first cutter are slidably matched with the trapezoidal guide groove and the trapezoidal guide block, the second cutter is fixedly connected to the second door frame through the first connecting rod, the first cutter is arranged on the tool holder, and the two sides of the tool holder are slidably arranged in the two third sliding grooves on the inner side of the third door frame, and the third door frame is rotatably provided with two screws that are respectively threadedly connected to the two sides of the tool holder, and two third pulleys are installed on the same side ends of the two screws, and the two third pulleys are connected through the second same The step belt transmission connection, a knob is installed at the end of one of the screw rods, and a locking screw that cooperates with the conical surface of the knob end is threadedly installed on the third door frame, two second sliding blocks are symmetrically arranged on both sides of the third door frame, the second sliding block is slidably arranged in the second sliding groove on the corresponding side of the second door frame, the upper end of the second sliding block is connected to the top of the second sliding groove through a second spring, and two first sliding blocks are symmetrically arranged on both sides of the second door frame, the first sliding block is slidably arranged in the first sliding groove on the corresponding side of the first door frame, the upper end of the first sliding block is connected to the top of the first sliding groove through a first pneumatic push rod, the top of the first door frame is fixedly connected to the platform through two symmetrically distributed support rods, and two limit blocks cooperating with the lower end of the third door frame are arranged on the platform.

3. The medical suture thread inverted stimulation light-assisted cutting device according to claim 1, characterized in that: The platform is provided with a wire groove for positioning the suture wire that moves horizontally, and the platform is fixed above the bottom plate through a first bracket.

4. The medical suture thread inverted stimulation light-assisted cutting device according to claim 2, characterized in that: The pay-off assembly includes a second bracket fixed to the base plate, a first axle is installed on the second bracket through a first damper, a first pay-off wheel is installed on the first axle, suture wire is wound on the first pay-off wheel, and the second bracket is connected to a first positioning ring through a fixing rod to horizontally guide the suture on the first pay-off wheel into the wire groove on the platform.

5. The medical suture thread inverted stimulation light-assisted cutting device according to claim 1, characterized in that: The first pulling assembly includes a third bracket fixed on the base plate, wherein a first clamping wheel for supporting the suture thread from the first accommodating groove on the platform is installed in the third bracket through a second wheel axle, a first pulley is installed on the second wheel axle, the first pulley is connected to the second pulley on the output shaft of the first motor through a first synchronous belt, the first motor is arranged on the base plate, two first telescopic rods distributed front and back and vertically telescopic are arranged on the top of the third bracket, a first wheel seat and a second wheel seat are respectively installed at the lower ends of the two first telescopic rods, a second clamping wheel for pressing the suture thread to the first clamping wheel is arranged in the first wheel seat, a pressure wheel is arranged in the second wheel seat to make the suture thread passing through the first clamping wheel and the second clamping wheel move horizontally toward the cutting assembly, the first telescopic rod is composed of a first set rod and a first inner rod which are socketed with each other, and a first spring for driving the first inner rod to extend outward is arranged in the first set rod.

6. The medical suture thread inverted stimulation light-assisted cutting device according to claim 1, characterized in that: The turning assembly includes a fourth bracket fixed to the base plate, two guide seats are arranged on the fourth bracket, a first ring sleeve with a notch is slidably arranged between the two guide seats in a direction parallel to the movement of the suture line, a second ring sleeve with a notch is rotatably arranged in the first ring sleeve, a gear ring with a notch is arranged on the second ring sleeve, the gear ring is meshed with a first gear on the output shaft of the third motor, the third motor is arranged on the outside of the first ring sleeve, a coaxial third sleeve is arranged on one end of the cutting assembly side of the second sleeve, a second accommodating groove is provided at the top of the third sleeve, a fourth slide groove is provided at the top of the second accommodating groove, a sliding rod is vertically slid in the fourth slide groove, a pressure block cooperating with the suture line is provided at the lower end of the sliding rod, a second pneumatic push rod driving the sliding rod to move is arranged in the fourth slide groove, a second motor is arranged on the fourth bracket, a crank wheel is arranged on the output shaft of the second motor, and a connecting rod is hinged between the crank wheel and the other end of the first ring sleeve.

7. The medical suture thread inverted stimulation light-assisted cutting device according to claim 1, characterized in that: The second pulling assembly includes a fifth bracket fixed to the base plate, a third clamping wheel for supporting the suture thread is installed in the fifth bracket through a third wheel axle, a fourth pulley is installed on the third wheel axle, the fourth pulley is transmission-connected to the fifth pulley on the output shaft of the fourth motor through a third synchronous belt, the fourth motor is arranged on the base plate, a third telescopic rod for vertical extension is arranged on the top of the fifth bracket, a third wheel seat is arranged at the lower end of the third telescopic rod, a fourth clamping wheel for pressing the suture thread against the third clamping wheel is arranged in the third wheel seat, the third telescopic rod is composed of a third sleeve rod and a third inner rod which are sleeved with each other, and a fourth spring for driving the third inner rod to extend outward is arranged in the third sleeve rod.

8. The medical suture thread inverted stimulation light-assisted cutting device according to claim 1, characterized in that: The attachment assembly includes a sixth bracket fixed to the base plate, a fifth clamping wheel for supporting the suture line is arranged in the sixth bracket, a fourth wheel axle is arranged on the sixth bracket through a second damper, a second pay-off wheel is arranged on the fourth wheel axle, an attachment line is wound around the second pay-off wheel, and the attachment line bypasses the fifth clamping wheel and is horizontally pulled to the winding and collecting assembly, a fourth telescopic rod is arranged vertically and retractable on the top of the sixth bracket, a fourth wheel seat is arranged at the lower end of the fourth telescopic rod, a sixth clamping wheel for pressing the suture line against the attachment line on the fifth clamping wheel is arranged in the fourth wheel seat, the fourth telescopic rod is composed of a fourth sleeve rod and a fourth inner rod which are sleeved with each other, a fifth spring is arranged in the fourth sleeve rod to drive the fourth inner rod to extend outward, and the sixth bracket is connected to a second positioning ring for guiding the attachment line from the second pay-off wheel to the fifth clamping wheel through a third connecting rod.

9. The medical suture thread inverted stimulation light-assisted cutting device according to claim 1, characterized in that: The cutting assembly includes a seventh bracket fixed to the base plate, the seventh bracket is provided with two guide sleeves, two guide rods are provided in the two guide sleeves for horizontally moving toward or away from each other, two symmetrically distributed clamps are provided on the two guide rods, two arc plates cooperating with the suture are provided at the upper ends of the two clamps, the seventh bracket is provided with a fifth motor, the output shaft of the fifth motor is provided with a second gear, the second gear is meshed with the racks on the two guide rods, and the seventh bracket is connected to a laser cutter through a fourth connecting rod for cutting the suture from the attachment line position clamped by the two clamps.

10. The medical suture thread inverted stimulation light-assisted cutting device according to claim 9, characterized in that: The winding and collecting assembly includes an eighth bracket fixed to the base plate, on which a winding wheel for axially winding the suture thread in a single layer is installed via a fifth wheel axle, the fifth wheel axle is drivingly connected to the output shaft of the sixth motor on the eighth bracket, and the eighth bracket is connected to a positioning wheel via a fifth connecting rod so that the suture thread is exactly opposite to the laser cutter.

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