Medical suture and method of looping the tail thereof

Abstract

This invention relates to a medical suture and a method for forming a loop at its tail. The suture includes a main body segment, a middle segment, and a tail segment connected sequentially along its length. The processing method includes the following steps: S1, fixing the middle segment; S2, driving the middle segment and the tail segment to rotate together around a rotation center line, during which the main body segment is driven to coil around the rotation center line, causing the main body segment and the middle segment to intersect each other; S3, driving the tail segment to bend towards the middle segment, so that the tail segment and the middle segment partially adhere to each other and form a loop between the tail segment and the middle segment, during the bending process, the main body segment is wrapped between the tail segment and the middle segment, so that the middle segment passes through the loop segment while the loop segment is formed; S4, fixing the part where the tail segment and the middle segment adhere to each other. This processing method is simpler to operate and produces a higher quality finished product.

Description

Technical Field

[0001] This invention relates to a medical suture and a method for forming a loop at its tail. Background Technology

[0002] In the existing technology, in the production process of medical sutures, especially barbed sutures, after the barbs are cut and the needle is pressed, the end of the suture needs to be tied into a loop. Most manufacturers use manual knotting, which is difficult and inefficient. At the same time, this method makes it difficult to ensure the consistency and quality of the finished products. Summary of the Invention

[0003] The purpose of this invention is to provide a new method for forming a loop at the end of a medical suture.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a method for forming a loop at the tail of a medical suture, wherein the suture comprises a main body segment, a middle segment, and a tail segment connected sequentially along its length, and the method for forming a loop at the tail comprises the following steps: S1. Fix the middle section; S2. Keep the middle section and the tail section relatively fixed, drive the middle section to rotate around the rotation center line, and at the same time, coil the main body section around the rotation center line, so that the main body section moves from one end of the middle section to the other end of the middle section and intersects with the middle section, so that the main body section has a first part and a second part respectively disposed on opposite sides of the middle section, wherein the first part and the middle section are arranged in a closed shape along the circumference; S3. Drive the tail section to bypass the main body section and bend towards the middle section, so that the tail section and the middle section are at least partially attached, thereby forming a loop between the tail section and the middle section, and causing the main body section to slide through the loop along the length direction; S4. Fix the portion where the tail section and the middle section are attached to each other.

[0005] In some embodiments, in step S2, the main body segment is driven to pass over the middle segment and form an intersection; in step S3, the tail segment is bent upward and bent over the middle segment.

[0006] In some embodiments, in step S2, the main body segment is driven to tilt upward and coil to extend above the middle segment.

[0007] In some embodiments, during step S2, as the middle segment and the tail segment rotate, the tail segment is driven to bend downwards to create a misalignment with the main body segment in the vertical direction.

[0008] In some embodiments, in step S2, the tail section is rotated to the bending station; in step S3, the first bending member is driven to move upward to bend the tail section upward, and then the second bending member is driven to move closer to the middle section to bend the tail section upward above the middle section.

[0009] In some embodiments, in step S1, the middle segment and the tail segment extend along the same length direction; in step S2, the middle segment is driven to rotate by an angle α, where the angle α is greater than 180 degrees.

[0010] In some embodiments, in step S3, the free end of the tail segment is attached to the middle segment along the length direction of the middle segment.

[0011] In some embodiments, in step S4, the mating portion of the tail section and the middle section is welded together.

[0012] In some embodiments, in step S1, the suture is fixed to the mounting base, such that the middle section is supported by the mounting base, and the main body section and the tail section are respectively disposed on both sides of the mounting base; in step S2, the mounting base is driven to rotate around the rotation center line, and the main body section is coiled along the coiling channel on the mounting base.

[0013] In some embodiments, in step S1, the intermediate segment is fixed in a wire-locking groove extending along a first direction; in step S2, the tail segment is driven to bend into the wire-locking groove, and the tail segment and the intermediate segment fit together in the wire-locking groove.

[0014] In some embodiments, in step S1, the first seat and the second seat are driven to move closer together and the middle segment is fixed between the first seat and the second seat; the tail looping method further includes step S5: driving the first seat and the second seat away from each other to release the suture.

[0015] In some embodiments, in step S2, the top cover is driven to cover the middle section, and then the middle section is driven to rotate.

[0016] In some embodiments, in step S2, the pushing part is driven into the rotation path of the tail section, and during the rotation of the middle section and the tail section, the pushing part drives the tail section to bend downward.

[0017] In some embodiments, the upper cover is provided with a clearance groove that runs vertically through the upper and lower parts. In step S2, the middle section is driven to rotate to the lower part of the clearance groove and extend in the same direction as the clearance groove. In step S3, the tail section is driven to bend into the clearance groove and move closer to the middle section located below the clearance groove.

[0018] In some embodiments, in step S4, the upper cover moves away from the upper part of the middle section, driving the welding head downward and welding the mating part of the tail section to the middle section.

[0019] In some embodiments, in step S1, the intermediate segment is placed on a first support surface and fixed; in step S2, the main body segment is driven to coil along a coiling channel, the coiling channel having a second support surface for supporting and guiding the main body segment, at the intersection of the main body segment and the intermediate segment or at the intersection of the main body segment and the tail segment, there is a height difference h between the second support surface and the first support surface, where h is greater than one times the diameter of the suture line.

[0020] Another object of the present invention is to provide a medical suture.

[0021] To achieve the above objectives, the technical solution adopted by the present invention is: a medical suture, the suture comprising a main body segment, a middle segment and a tail segment connected sequentially along the length direction, the tail segment being at least partially attached to the middle segment, and the mutually attached portions of the tail segment and the middle segment being fixedly connected, a loop being formed between the tail segment and the middle segment, and the main body segment being slidably inserted into the loop along the length direction.

[0022] In some embodiments, the length of the main body segment is greater than the length of the middle segment, and the length of the middle segment is not less than the length of the tail segment.

[0023] Due to the application of the above technical solution, the present invention has the following advantages: The method for forming a loop at the tail of the medical suture of the present invention first involves crossing the main body segment and the middle segment of the suture, and then bending the tail segment of the suture so that the tail segment and the middle segment partially adhere and form a loop. During the bending process of the tail segment, the main body segment is enclosed within it. Thus, the looping operation is completed simultaneously with the loop formation. This method is simple to operate and can improve the consistency and quality of the finished product. The present invention also achieves the fixation of the loop by connecting the adhered portion of the tail segment and the middle segment. Compared with knotting, this reduces the foreign body sensation during suture use and avoids discomfort to the patient. Attached Figure Description

[0024] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Appendix Figure 1 A schematic diagram of a method for looping the tail of a medical suture; Appendix Figure 2 This is a schematic diagram of a portion of the structure of a suture processing device according to a specific embodiment of the present invention; Appendix Figure 3 This is a schematic diagram of the mounting base, folding mechanism, top cover, and main frame of the suture processing equipment; Appendix Figure 4 For the appendix Figure 3 Top view; Appendix Figure 5 For the appendix Figure 3 Side view of the mounting base, the folding mechanism, and the top cover; Appendix Figure 6 For the appendix Figure 5 Enlarged view of point A in the middle; Appendix Figure 7 For the appendix Figure 3 A schematic diagram of the zigzag mechanism and part of the main frame; Appendix Figure 8 For the appendix Figure 7 Enlarged view of point B in the middle; Appendix Figure 9 This is a schematic diagram of a mounting base according to a specific embodiment; Appendix Figure 10 For the appendix Figure 9 A diagram from another perspective; Appendix Figure 11 For the appendix Figure 10 Side view; Appendix Figure 12 This is a schematic diagram of the mounting base and the stitching line; Appendix Figure 13 This is a schematic diagram showing the fit between the mounting base and the top cover. Appendix Figure 14 This is a schematic diagram of the top cover; Appendix Figure 15 For the appendix Figure 14 A diagram from another perspective; Appendix Figure 16 A schematic diagram of a finished medical suture according to a specific embodiment; In the above attached diagrams: 100, suture line; 110, main body segment; 120, middle segment; 130, tail segment; 140, ring portion; 200. Winding channel; 210. First winding segment; 220. Second winding segment; 1. Mounting base; 10. Cable slot; 101. First port; 102. Second port; 11. First base body; 111. First clamping surface; 112. First support surface; 12. Second base body; 121. Second clamping surface; 13. Groove; 14. Positioning protrusion; 2. Winding section; 21. Guide groove; 211. Abutment surface; 212. Second support surface; 3. Folding mechanism; 31. First bending component; 311. First bending section; 312. Perforation; 32. Second bending component; 321. Second bending section; 33. First drive mechanism; 331. Drive head; 34. Second drive mechanism; 35. Swing component; 351. First connecting part; 352. Second connecting part; 4. Top cover; 41. Covering part; 42. Pushing part; 421. Pushing surface; 4211. Bending section; 4212. Platform section; 43. Positioning groove; 44. Clearance groove; 441. First groove section; 442. Second groove section; 5. Welding equipment; 51. Welding head; 6. Main frame; 61. Bending station. Detailed Implementation

[0026] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is for the purpose of aiding understanding the present invention, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] See Figure 16 The suture 100 shown is specifically a medical suture. During the manufacturing process of the suture 100, a loop 140 needs to be formed at its tail, and the suture 100 passes through this loop 140. Specifically, the suture 100 includes a main body segment 110, a middle segment 120, and a tail segment 130 connected sequentially along its length. During manufacturing, the tail segment 130 is bent relative to the middle segment 120 to form the loop 140, and the main body segment 110 passes through the loop 140. See also... Figure 16 As shown, in the finished product state, the middle segment 120 and the tail segment 130 of the suture 100 are at least partially attached, and the attached portion of the tail segment 130 and the middle segment 120 is fixedly connected. A loop 140 is formed between the tail segment 130 and the middle segment 120, and the main body segment 110 is slidably inserted into the loop 140 along its length. In this embodiment, the length of the main body segment 110 is greater than the length of the middle segment 120, and the main body segment 110 is the main part of the surgical suture. In this embodiment, the length of the middle segment 120 is not less than the length of the tail segment 130, thereby facilitating the processing and production of the suture 100.

[0028] This embodiment provides a method for looping the tail of a medical suture. The looping method includes the following steps: S1, fixing the intermediate segment 120. S2, keeping the intermediate segment 120 and the tail segment 130 relatively fixed, driving the intermediate segment 120 to rotate around the rotation center line, while simultaneously coiling the main body segment 110 around the rotation center line, so that the main body segment 110 wraps from one end of the intermediate segment 120 to the other end of the intermediate segment 120 and intersects with the intermediate segment 120, thereby giving the main body segment 110 a first part and a second part respectively located on opposite sides of the intermediate segment 120. See [link to documentation]. Figure 4 , Figure 12 As shown, the first part and the middle section 120 are arranged in a closed shape along the circumference. S3, the tail section 130 is driven to bypass the main body section 110 and bend towards the middle section 120, so that the tail section 130 and the middle section 120 are at least partially attached, thereby forming a ring 140 between the tail section 130 and the middle section 120, and the main body section 110 is slidably inserted into the ring 140 along the length direction. S4, the part where the tail section 130 and the middle section 120 are attached is fixed.

[0029] The method for forming a loop at the tail of the medical suture in this embodiment involves first crossing the main body segment 110 and the middle segment 120, and then bending the tail segment 130 to form a loop 140 between it and the middle segment 120. During the bending of the tail segment 130 to form the loop 140, the main body segment 110 is enveloped between the tail segment 130 and the middle segment 120, thus completing the looping process simultaneously. This method of crossing first and then forming a loop is simpler to operate than the method of forming a loop first and then threading it, and it also allows for better control of the quality and consistency of the finished product. Furthermore, in this embodiment, in step S2, the main body segment 110 is wound around the rotation center line by driving the middle segment 120 and the tail segment 130 to rotate, and the sutures 100 cross each other during the winding process. This method is easy to operate, and by controlling the winding path of the main body segment 110, the crossing point of the sutures 100 can be determined, thereby improving the consistency of the finished product.

[0030] In this embodiment, after the middle segment 120 is fixed in step S1, the main body segment 110 and the tail segment 130 are located on opposite sides of the middle segment 120. In step S2, the tail segment 130 rotates together with the middle segment 120. In step S3, during the bending of the tail segment 130, the main body segment 110 is wrapped between the tail segment 130 and the middle segment 120, so that the main body segment 110 passes through the ring portion 140 while the ring portion 140 is formed. In some preferred embodiments, in step S2, the main body segment 110 coils around the rotation center line with a radius r.

[0031] In this embodiment, see Figures 2 to 4The diagram illustrates a suture processing device for processing sutures. Specifically, the device includes a mounting base 1, which is rotatably arranged about a rotation center line. In step S1, the suture 100 is fixed to the mounting base 1, with the middle section 120 supported on the mounting base 1, and the main body section 110 and the tail section 130 respectively located on both sides of the mounting base 1. In step S2, the mounting base 1 is driven to rotate about the rotation center line, and the main body section 110 is wound along the winding channel 200 on the mounting base 1.

[0032] Specifically, in this embodiment, the mounting base 1 is provided with a support portion, a fixing structure, and a winding structure. The support portion has an upward-facing first support surface 112, extends along a first direction, and has a first end and a second end located at opposite ends along its length. The fixing structure is used to fix the suture 100 to the support portion. The winding structure forms a winding channel 200, one end of which connects to the first end. The winding channel 200 extends around a rotation center line and is arranged to intersect with the support portion. See also... Figures 9 to 12 As shown, the winding channel 200 and the support portion form a ring. When the suture 100 is fixed to the support portion, the mounting base 1 is driven to rotate, allowing the suture 100 located on the outer side of the first end to wind along the winding channel 200 and intersect with the suture 100 supported on the support portion. In other embodiments, the mounting base 1 can be rotated to cause the suture 100 located on the outer side of the first end to wind and intersect with the suture located on the outer side of the second end.

[0033] In this embodiment, in step S1, the middle segment 120 is placed on the first support surface 112 and fixed, the main body segment 110 extends from the first end to the outside of the support portion, and the tail segment 130 extends from the second end to the outside of the support portion. In this embodiment, in step S2, the main body segment 110 is driven to coil along the coiling channel 200.

[0034] In this embodiment, the coiled channel 200 has a second support surface 212 for supporting and guiding the main body segment 110. At the intersection of the main body segment 110 and the middle segment 120 or at the intersection of the main body segment 110 and the tail segment 130, there is a height difference h between the second support surface 212 and the first support surface 112. Preferably, h is greater than one times the diameter of the suture 100, so that the main body segment 110 and the middle segment 120 can be better intersected.

[0035] In this embodiment, in step S2, the main body segment 110 is driven to pass over the middle segment 120. In step S3, the tail segment 130 is bent upwards and then bent above the middle segment 120, so that the main body segment 110 is automatically enveloped during the bending process of the tail segment 130.

[0036] Specifically, in this embodiment, the second support surface 212 is located above the first support surface 112 at the intersection of the coiled channel 200 and the support portion, so that the suture 100 located on the outer side of the first end can pass through the coiled channel 200 from above the suture 100 supported on the support portion.

[0037] In this embodiment, the device further includes a folding mechanism 3, which includes a movably configured bending member. The bending member is used to bend the suture 100 extending from the second end to the outside of the support portion to the top of the support portion, so that it fits and partially overlaps with the suture 100 on the support portion, thereby forming a ring portion 140.

[0038] In this embodiment, the coiled channel 200 and the support portion intersect at the second end. In step S2, the main body segment 110 can intersect with the intermediate segment at the second end.

[0039] In this embodiment, the bending member is used to bend the tail section 130 located outside the support section toward the support section so that the tail section 130 and the middle section 120 are partially attached and partially overlapped, thereby forming a ring section 140. Specifically, in step S3, the tail section 130 encloses the main body section 110, thereby enabling the ring-threading operation to be completed while forming the ring section 140.

[0040] In some embodiments, in step S1, the intermediate segment 120 is fixed in the wire-locking groove 10 extending along the first direction. In step S2, the tail segment 130 is driven to bend into the wire-locking groove 10, and the tail segment 130 and the intermediate segment 120 fit together within the wire-locking groove 10. The wire-locking groove 10 can provide stable fixation for the intermediate segment 120, and at the same time, the wire-locking groove 10 can also fix the bent tail segment 130, improving the stability of the subsequent fixed connection between the tail segment 130 and the intermediate segment 120, thereby improving the quality of the finished product.

[0041] In this embodiment, the fixing structure includes a first clamping surface 111 and a second clamping surface 121 that can be brought closer together along a second direction. The first clamping surface 111 and the second clamping surface 121 can clamp and fix the suture 100. In this embodiment, the second direction is perpendicular to the first direction. The first clamping surface 111, the second clamping surface 121, and the first support surface 112 constitute the aforementioned suture groove 10, which extends along the first direction. In this embodiment, the suture groove 10 has a first port 101 and a second port 102 located at both ends. When the suture 100 is fixed to the mounting base 1, the main body section 110 is located outside the first port 101, the middle section 120 is fixed in the suture groove 10, and the tail section 130 is located outside the second port 102.

[0042] In this embodiment, the winding channel 200 includes a first winding segment 210 and a second winding segment 220 connected along its length. One end of the first winding segment 210 is connected to a first end, and the other end of the first winding segment 210 intersects with a support portion. The second winding segment 220 extends away from the support portion from the intersection of the first winding segment 210 and the support portion. The intersection of the first winding segment 210 and the support portion is the intersection of the winding channel 200 and the support portion. Specifically, in this embodiment, the first winding segment 210 is connected between the first port 101 and the second port 102, and the first winding segment 210 and the wire-locking groove 10 form a ring.

[0043] In this embodiment, the first winding segment 210 is arc-shaped with the rotation center line as its rotation center. In this embodiment, the second winding segment 220 extends in a straight line. In other embodiments, the second winding segment 220 is also arc-shaped.

[0044] In this embodiment, the setting of the coiling channel 200 is standardized and the coiling direction of the main body segment 110 is restricted, ensuring that the main body segment 110 and the intermediate segment 120 can accurately intersect at the second port 102, and the intersection point can also be standardized. This makes it convenient to set up each mechanism, such as the broken line mechanism 3, and can reduce or eliminate various positioning adjustment operations, thereby improving efficiency.

[0045] In this embodiment, the suture processing equipment has a winding mode and a folding mode. In the winding mode, the mounting base 1 rotates around the rotation center line, causing the main body segment 110 to coil along the winding channel. In the folding mode, the folding mechanism 3 drives the tail segment 130 to bend relative to the suture groove 10 to form a loop 140 and enclose the main body segment 110 therein.

[0046] In this embodiment, the rotation center line extends in the vertical direction. In some embodiments, after the mounting base 1 rotates around the rotation center line, the main body segment 110 passes under the middle segment 120 to form an intersection. In this embodiment, the bending member is used to drive the tail segment 130 outside the wire slot 10 to bend downward and form an envelope around the main body segment 110.

[0047] In this embodiment, the wire-locking groove 10 is disposed on the upper part of the mounting base 1, with the groove opening of the wire-locking groove 10 facing upward. The bending member is used to drive the tail section 130 to bend upward, thus forming an envelope around the main body section 110.

[0048] In this embodiment, positioning protrusions 14 are provided on the upper part of the two side walls of the suture groove 10. Specifically, the positioning protrusions 14 extend upward from the upper part of the wall of the suture groove 10. The positioning protrusions 14 serve two purposes: firstly, they position the tail section 130 that bends into the suture groove 10, ensuring that the free end of the tail section 130 accurately fits and overlaps with the middle section 120, thus accurately forming the ring 140 and guaranteeing subsequent connection and fixation. Secondly, as an upward extension of the wall of the suture groove 10, the positioning protrusions 14 increase the depth of the suture groove 10, thereby expanding the thickness of the suture 100 that the mounting base 1 can fix, allowing the suture processing equipment to accommodate a wider range of suture 100 sizes. In some embodiments, multiple positioning protrusions 14 are provided along the length of the suture groove 10.

[0049] In this embodiment, at the second port 102, the second support surface 212 is higher than the first support surface 112, so that the winding channel 200 and the wire-locking groove 10 are staggered vertically, so that the main body segment 110 at the second port 102 can automatically wind around to the top of the middle segment 120, making it convenient for the main body segment 110 to pass through the top of the middle segment 120.

[0050] In some embodiments, the support extends downward at an angle from the first end. Specifically, the wire-locking groove 10 extends downward at an angle from the first port 101 to the second port 102. By setting the wire-locking groove 10 to extend obliquely, the first support surface 112 extends downward at an angle, reducing the height of the first support surface 112 at the second port 102, thereby allowing the coiling channel 200 and the wire-locking groove 10 to intersect at the second port 102.

[0051] In other embodiments, in step S2, the main body segment 110 is driven to tilt upwards and coil to extend above the intermediate segment 120, thereby passing over the intermediate segment 120. In this embodiment, the first coiled segment 210 extends upwards at an angle from the first end. Specifically, the first coiled segment 210 extends upwards at an angle from the first port 101 to the second port 102. The first coiled segment 210 is offset upwards from the wire-holding groove 10 and guides the main body segment 110 to coil upwards.

[0052] Specifically, in this embodiment, the winding structure includes a winding portion 2 disposed on the mounting base 1. The winding portion 2 is disposed on one side of the support portion. The first coil winding section 210 includes a guide groove 21 disposed on the outer side of the winding portion 2. The guide groove 21 is radially recessed inward with the rotation center line as the center. The guide groove 21 extends upward at an angle from the first end. Specifically, the guide groove 21 extends upward at an angle from the first port 101 to the second port 102, and the guide groove 21 serves a guiding function. In this embodiment, the lower side wall of the guide groove 21 constitutes the aforementioned second support surface 212.

[0053] In other embodiments, the first winding section 210 includes a guide protrusion disposed on the outer side of the winding portion 2. The guide protrusion extends radially outward about the rotation center line, and its upper surface constitutes the aforementioned second support surface 212. The guide protrusion extends upward at an angle from the first end; specifically, it extends upward at an angle from the first port 101 to the second port 102, guiding the stitching line 100 to wind upward.

[0054] In this embodiment, the first winding section 210 includes an abutment surface 211 disposed on the outer side of the winding portion 2, the abutment surface 211 extending in the vertical direction. A second support surface 212 is disposed below the abutment surface 211, and the aforementioned upwardly inclined guide groove 21 is formed between the abutment surface 211 and the second support surface 212. In this embodiment, the first winding section 210 extends upward in a spiral manner around the rotation center line; specifically, the guide groove 21 extends upward in a spiral manner.

[0055] In this embodiment, see Figures 9 to 12 As shown, the winding part 2 is disposed on the top of the mounting base 1. Specifically, the winding part 2 is disposed on one side of the wire clamping groove 10 along a direction perpendicular to the length of the wire clamping groove 10. In this embodiment, the winding part 2 is integrally disposed with the mounting base 1.

[0056] In this embodiment, along the length direction perpendicular to the wire-holding groove 10, a clearance space is provided on the side of the wire-holding groove 10 away from the winding portion 2. The sewing thread 100 enters the clearance space after passing through the second port 102, and the second winding segment 220 is disposed in the clearance space. In some preferred embodiments, the second winding segment 220 extends horizontally, and the winding channel 200 forms an angle at the second port. The main body segment 110 extends horizontally after bypassing the second port 102. This arrangement facilitates the tail segment 130 to envelop the main body segment 110, improving the stability of the main body segment 110 during the enveloping process.

[0057] In this embodiment, the mounting base 1 includes a first base 11 and a second base 12 that can approach each other along a second direction, which is perpendicular to the rotation center line. In this embodiment, in step S1, the first base 11 and the second base 12 are driven to approach each other and the intermediate segment 120 is fixed between the first base 11 and the second base 12. In this embodiment, the tail looping method further includes step S5: driving the first base 11 and the second base 12 away from each other to release the suture 100.

[0058] Specifically, in this embodiment, the mounting base 1 has a clamping state and a releasing state. In the clamping state, the first base 11 and the second base 12 are close together, forming a suture groove 10 between them. Specifically, the first clamping surface 111 and the first supporting surface 112 are disposed on the upper part of the first base 11, and the second clamping surface 121 is disposed on the upper part of the second base 12, forming the suture groove 10 between the upper parts of the first base 11 and the upper parts of the second base 12. In the releasing state, the first base 11 and the second base 12 are relatively far apart. In this embodiment, by driving the mounting base 1 to switch to the clamping state, the suture 100 can be clamped and fixed using the first base 11 and the second base 12, and the suture 100 can be fixed in the suture groove 10. After completing the looping and looping operations, by driving the mounting base 1 to switch to the releasing state, the clamping of the suture 100 can be released, and the suture 100 can be removed from the mounting base 1.

[0059] In this embodiment, the winding portion 2 is disposed adjacent to the wire-holding groove 10, and the side of the winding portion 2 near the wire-holding groove 10 forms one side wall of the wire-holding groove 10. Specifically, in this embodiment, the winding portion 2 is fixed to the upper part of the first base 11, and one side of the winding portion 2 is the first clamping surface 111. In this embodiment, the second base 12 is provided with a clearance space.

[0060] In this embodiment, in step S1, the middle segment 120 and the tail segment 130 extend along the same length direction; in step S2, the middle segment 120 is driven to rotate by an angle α, where α is greater than 180 degrees. In this embodiment, in step S3, the free end of the tail segment 130 is attached to the middle segment 120 along the length direction of the middle segment 120.

[0061] Specifically, in this embodiment, the wire-locking groove 10 extends in a straight line, and the axis of the wire-locking groove 10 intersects the rotation center line. When driving the main body section 110 and the intermediate section 120 to intersect each other, the mounting base 1 needs to rotate more than 180 degrees. Specifically, in this embodiment, see... Figure 4 As shown, the folding mechanism 3, mounting base 1, and other mechanisms are arranged along a preset straight line direction. When fixing the suture line 100, the suture line 100 passes through the mounting base 1 perpendicular to the preset straight line direction and is fixed to the mounting base 1. This arrangement can improve the organization and neatness of the equipment, reduce the size of the equipment, and facilitate the fixing of the suture line 100. In this embodiment, in the winding mode, the mounting base 1 is driven to rotate 270 degrees around the rotation center line.

[0062] In this embodiment, the coiled channel 200 extends in a smooth curve at the connection with the first end. Specifically, the first coiled section 210 extends in a smooth curve at the connection with the first port 101, which allows the suture 100 to bend gently, thereby protecting the suture 100.

[0063] In this embodiment, see Figures 13 to 15 As shown, the suture processing equipment includes an upper cover 4. In step S2, the upper cover 4 is driven to cover the middle section 120, and then the middle section 120 is driven to rotate. The upper cover 4 is used to improve the stability of the middle section 120. Specifically, in this embodiment, the upper cover 4 has a blocking part 41. In step S1, specifically, when the equipment is in the winding mode, the blocking part 41 is covered above the support to prevent the suture 100 from falling off. Specifically, when the mounting base 1 rotates around the rotation center line, the blocking part 41 is covered above the suture groove 10 to prevent the suture 100 from falling off the suture groove 10.

[0064] In some embodiments, during step S2, as the middle segment 120 and the tail segment 130 rotate, the tail segment 130 is driven to bend downwards to form a misalignment with the main body segment 110 in the vertical direction, thereby facilitating the main body segment 110 to pass over the middle segment 120 or the tail segment 130.

[0065] In this embodiment, the upper cover 4 is provided with a driving structure for driving the tail section 130 outside the second port 102 to bend downwards. In this embodiment, the guide groove 21 and the driving structure provide dual protection to ensure that the main body section 110 and the middle section 120 accurately complete the intersection. In some embodiments, the ring-forming and ring-piercing integrated device includes one or more of the above-mentioned structural designs for ensuring accurate intersection.

[0066] In this embodiment, the driving structure includes a pushing part 42. In step S2, the pushing part 42 is driven into the rotation path of the tail section 130. During the rotation of the middle section 120 and the tail section 130, the pushing part 42 drives the tail section 130 to bend downward.

[0067] Specifically, in this embodiment, the pushing part 42 is disposed on the outer periphery of the shielding part 41. The pushing part 42 extends downward relative to the shielding part 41. The pushing part 42 is used to drive the tail section 130 extending from the second end to the outer side of the support part to bend downward during the rotation of the mounting base 1. In this embodiment, in the winding mode, when the upper cover 4 is placed on top of the mounting base 1, the bottom of the pushing part 42 is lower than the second support surface 212 at the intersection of the winding channel 200 and the support part. Specifically, the bottom of the pushing part 42 is lower than the second support surface 212 at the second port 102.

[0068] In some embodiments, the upper cover 4 includes a downwardly facing push surface 421, which is disposed on the outer periphery of the blocking portion 41. The push surface 421 is located below the blocking portion 41 in the vertical direction or extends downward to the lower part of the blocking portion 41. Specifically, the push surface 421 extends in the vertical direction to the lower part of the second support surface 212 at the intersection of the coiled channel 200 and the support portion. During the rotation of the mounting base 1, the push surface 421 drives the tail section 130 to bend downward. In this embodiment, the push portion 42 has a downwardly facing push surface 421. Specifically, the lower surface of the push portion 42 constitutes the push surface 421.

[0069] In this embodiment, the pushing part 42 is arranged around the blocking part 41. Specifically, the pushing surface 421 is arranged around the blocking part 41. In step S2, the pushing part 42 or the pushing surface 421 is always located above the tail section 130. During the rotation of the mounting base 1, the tail section 130 is always in contact with the pushing surface 421, thereby always maintaining a downward bending state.

[0070] In this embodiment, the pushing surface 421 gradually extends downward around the periphery of the blocking part 41. In step S2, the tail section 130 gradually bends downward. When the main body section 110 reaches the second port 102, the tail section 130 bends downward to the desired state.

[0071] Specifically, in this embodiment, see Figure 14 , Figure 15 As shown, the pushing surface 421 includes a bent section 4211 and a platform section 4212. The bent section 4211 extends downwards gradually around the periphery of the shielding portion 41, and the platform section 4212 is connected to the lower end of the bent section 4211. In this embodiment, the platform section 4212 extends horizontally. During the rotation of the mounting base 1, the bent section 4211 drives the tail section 130 to bend downwards. When the main body section 110 reaches the second port 102, the platform section 4212 abuts against the tail section 130. In this embodiment, the platform section 4212 is located below the second support surface 212 at the intersection of the coiled channel 200 and the support portion in the vertical direction.

[0072] In this embodiment, the upper cover 4 is provided with a positioning groove 43. The positioning groove 43 is located on the outer periphery of the shielding part 41. When the mounting base 1 rotates, the main body section 110 is inserted into the positioning groove 43. That is, in the winding mode, the main body section 110 is located in the positioning groove 43. The positioning groove 43 can play the role of positioning and limiting the main body section 110.

[0073] In this embodiment, the pushing surface 421 extends below the positioning groove 43. The positioning groove 43 allows the pushing surface 421 to avoid contact with the main body segment 110. During the downward movement of the tail segment 130 pushed by the pushing surface 421, the main body segment 110, located in the positioning groove 43, remains above the pushing surface 421, thus ensuring that the main body segment 110 passes over the tail segment 130. In this embodiment, the positioning groove 43 is located above the platform segment 4212.

[0074] In this embodiment, the upper cover 4 is slidably disposed, and the positioning groove 43 extends along the sliding direction of the upper cover 4. When the upper cover 4 moves above the mounting base 1, the main body segment 110 is inserted into the positioning groove 43. Specifically, the upper cover 4 is slidably disposed perpendicular to the rotation center line. In this embodiment, see... Figures 2 to 4 As shown, the suture processing equipment includes a frame body 6, a mounting base 1 rotatably mounted on the frame body 6, and an upper cover 4 slidably mounted on the frame body 6.

[0075] In this embodiment, the bending member is disposed on the outer periphery of the mounting base 1. In step S2, after the main body segment 110 completes winding and intersects with the tail segment 130, that is, after completing the winding mode, the mounting base 1 drives the tail segment 130 to the location of the bending member, and then the sewing thread processing equipment switches to the folded line mode. Specifically, the sewing thread processing equipment is provided with a bending station 61, and the bending member is disposed at the bending station 61. After the main body segment 110 completes winding, the mounting base 1 rotates and causes the tail segment 130 to move to the bending station 61. In this embodiment, the mounting base 1 has an initial state and a folded line state. When the equipment completes the winding mode and the equipment is in the folded line mode, the mounting base 1 is in the folded line state. In the folded line state, the second end or second port 102 faces the bending station. In this state, the bending member bends the tail segment 130 to form a loop 140.

[0076] In this embodiment, the bending component includes a first bending component 31 and a second bending component 32. The first bending component 31 and the second bending component 32 respectively perform two actions: upward bending and bending relative to the wire clamping groove 10. In some embodiments, the above two bending actions are performed by one bending component.

[0077] In this embodiment, in step S2, the tail section 130 is rotated to the bending station 61. In step S3, the first bending member 31 is driven to move upward to bend the tail section 130 upward, and then the second bending member 32 is driven to move closer to the middle section 120 to bend the tail section 130 upward above the middle section 120.

[0078] In this embodiment, the first bending member 31 is movable up and down, and is used to drive the tail section 130 to bend upward. With the rotation center line as the center, the second bending member 32 is arranged radially away from and closer to the mounting base 1, and is used to drive the tail section 130 to bend relative to the wire clamping groove 10. Specifically, the first bending member 31 has a first bending portion 311, which is movable up and down relative to the bending station 61. The second bending member 32 has a second bending portion 321, which is movable radially away from or closer to the bending station 61. In this embodiment, when in the zigzag mode, when the mounting base 1 is in the zigzag state, the second bending member 32 is arranged in a first direction relative to the mounting base 1.

[0079] In this embodiment, the second bending portion 321 is located above the bending station 61. When the tail section 130 is driven to bend, the second bending portion 321 moves from top to bottom relative to the mounting base 1. Specifically, in this embodiment, the second bending member 32 is slidably disposed, and the sliding direction of the second bending member 32 forms an angle with the horizontal direction.

[0080] In this embodiment, both the first bending portion 311 and the second bending portion 321 are provided with V-shaped grooves. The V-shaped grooves are used to facilitate the positioning of the suture line 100, thereby making it convenient and accurate to bend.

[0081] In this embodiment, the bending mechanism includes a first driving mechanism 33 for driving the first bending member 31 to move up and down and a second driving mechanism 34 for driving the second bending member 32 to move radially.

[0082] In this embodiment, the first driving mechanism 33 has a driving head 331 capable of horizontal movement. A linkage component is provided between the driving head 331 and the first bending member 31, so that when the driving head 331 moves horizontally, the linkage component can drive the first bending member 31 to move up and down. See also [link to previous embodiment]. Figure 5 , Figure 6 As shown, the linkage assembly includes a swing member 35, which is rotatably connected to the frame body 6 around a rotation center line. The swing member 35 has a first connecting portion 351 and a second connecting portion 352 respectively disposed on both sides of the rotation center line. The first connecting portion 351 is rotatably and slidably connected to the first bending member 31, and the second connecting portion 352 is rotatably and slidably connected to the drive head 331 of the first drive mechanism 33. In this embodiment, the rotation center line extends horizontally, and the direction of extension of the rotation center line is perpendicular to the direction of movement of the drive head 331. When the drive head 331 moves horizontally, the drive head 331 drives the swing member 35 to rotate around the rotation center line, and the swing member 35 drives the first bending member 31 to move up and down.

[0083] In this embodiment, the first bending member 31 has a first position and a second position. When in the first position, the first bending portion 311 is located below the bending station 61. When in the second position, the first bending portion 311 moves above the bending station 61 to bend the tail section 130. The second bending member 32 has a third position away from the mounting base 1 and a fourth position close to the mounting base 1.

[0084] In this embodiment, see Figure 7 , Figure 8 As shown, the first bending member 31 is provided with a through hole 312. When the first bending member 31 is in the second position and the second bending member 32 is in the fourth position, the second bending part 321 passes through the through hole 312. The through hole 312 serves as a guide and avoidance function.

[0085] In this embodiment, when the tail section 130 is bent, i.e., in step S3, the upper cover 4 remains on top of the mounting base 1 to maintain the stability of the suture 100 and prevent the suture 100 from moving or detaching from the thread-holding groove 10. In this embodiment, the upper cover 4 is provided with a clearance groove 44 to allow clearance between the second bending portion 321 and the tail section 130, so that the second bending portion 321 can approach the thread-holding groove 10 and the tail section 130 can be bent towards the thread-holding groove 10. In this embodiment, the clearance groove 44 extends through the upper cover 4 in the vertical direction. In step S2, the middle section 120 is driven to rotate to the lower part of the clearance groove 44 and extend in the same direction as the clearance groove 44. In step S3, the tail section 130 is driven to bend into the clearance groove 44 and approach the middle section 120 located below the clearance groove 44.

[0086] Specifically, see Figures 13 to 15 As shown, the clearance groove 44 includes a first groove segment 441 and a second groove segment 442 connected to each other. The width of the first groove segment 441 is greater than that of the second groove segment 442. The first groove segment 441 is used to avoid the second bend 321, and the second groove segment 442 is used to avoid the tail segment 130. At the same time, the second groove segment 442 can also guide the bending of the tail segment 130.

[0087] In some embodiments, the suture processing equipment further includes a fixing device for fixing the suture 100. Specifically, after bending, the tail section 130 is partially attached and overlapped, and the fixing device is used to fix the overlapping portion, thereby fixing the loop 140.

[0088] In this embodiment, in step S4, the portions of the tail section 130 and the middle section 120 that are in contact with each other are welded together. Specifically, the suture processing equipment also includes a welding device 5, which is the aforementioned fixing device. The welding device 5 includes a welding head 51 for welding the portions of the tail section 130 and the middle section 120 that are in contact with each other. See also Figure 2As shown, the welding head 51 is located above the mounting base 1 and is configured to move up and down. In step S4, the upper cover 4 moves away from the upper part of the middle section 120, driving the welding head 51 to move downward and weld the mating part of the tail section 130 and the middle section 120.

[0089] In this embodiment, the upper part of the mounting base 1 is provided with a downwardly recessed groove 13, a portion of the wire-holding groove 10 is located within the groove 13 and extends downward from the bottom of the groove 13, and the welding area is located within the groove 13. The groove 13 is used to avoid contact with the welding head 51. In some embodiments, the groove 13 is also used to position and guide the welding head 51. In this embodiment, the positioning protrusion 14 is provided within the groove 13.

[0090] In summary, the method for forming a loop at the tail of the medical suture in this embodiment involves first crossing the sutures 100 together, and then bending the tail segment 130 of the sutures 100 so that the tail segment 130 and the middle segment 120 partially adhere to each other and form a loop 140. During the bending of the tail segment 130, the main body segment 110 is enclosed within it, thus completing the looping operation simultaneously with the loop formation. By changing the operation sequence and method, the simpler method of driving the sutures 100 to cross each other replaces the threading operation, which requires precise positioning and operation. Furthermore, the crossing operation is achieved by rotating the mounting base 1 to make the sutures 100 coil along the coiling channel 200, simplifying the operation while improving the consistency and quality of the finished product.

[0091] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. In the event of any contradiction or inconsistency between the definitions used herein and those contained in other published documents, the definitions used herein shall prevail.

[0092] As indicated in this specification and claims, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0093] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0094] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A method for forming a loop at the tail of a medical suture, the suture comprising a main body segment, a middle segment, and a tail segment connected sequentially along its length, characterized in that, The tail looping method includes the following steps: S1. Fix the middle section; S2. Keep the middle section and the tail section relatively fixed, drive the middle section to rotate around the rotation center line, and at the same time, coil the main body section around the rotation center line, so that the main body section moves from one end of the middle section to the other end of the middle section and intersects with the middle section, so that the main body section has a first part and a second part respectively disposed on opposite sides of the middle section, wherein the first part and the middle section are arranged in a closed shape along the circumference; S3. Drive the tail section to bypass the main body section and bend towards the middle section, so that the tail section and the middle section are at least partially attached, thereby forming a loop between the tail section and the middle section, and causing the main body section to slide through the loop along the length direction; S4. Fix the portion where the tail section and the middle section are attached to each other.

2. The method for forming a loop at the tail of a medical suture according to claim 1, characterized in that: In step S2, the main body segment is driven to pass over the middle segment and form an intersection; in step S3, the tail segment is bent upward and then bent over the middle segment.

3. The method for forming a loop at the tail of a medical suture according to claim 2, characterized in that: In step S2, the main body segment is driven to tilt upward and coil to extend above the middle segment; And / or, in step S2, during the rotation of the middle segment and the tail segment, the tail segment is driven to bend downwards to form a misalignment with the main body segment in the vertical direction; And / or, in step S2, the tail section is rotated to the bending station; in step S3, the first bending member is driven to move upward to bend the tail section upward, and then the second bending member is driven to move closer to the middle section to bend the tail section upward above the middle section.

4. The method for forming a loop at the tail of a medical suture according to claim 1, characterized in that: In step S1, the middle segment and the tail segment extend along the same length direction; in step S2, the middle segment is driven to rotate by an angle α, where the angle α is greater than 180 degrees. And / or, in step S3, the free end of the tail segment is attached to the middle segment along the length direction of the middle segment; And / or, in step S4, the mating portion of the tail section and the middle section is welded together.

5. The method for forming a loop at the tail of a medical suture according to claim 1, characterized in that: In step S1, the suture is fixed to the mounting base, so that the middle section is supported by the mounting base, and the main body section and the tail section are respectively located on both sides of the mounting base; in step S2, the mounting base is driven to rotate around the rotation center line, and the main body section is coiled along the coiling channel on the mounting base. And / or, in step S1, the intermediate section is fixed in a wire-locking groove extending along the first direction; in step S2, the tail section is driven to bend into the wire-locking groove, and the tail section and the intermediate section are fitted together in the wire-locking groove. And / or, in step S1, the first seat and the second seat are driven to move closer together and the middle segment is fixed between the first seat and the second seat; the tail looping method further includes step S5: driving the first seat and the second seat away from each other to release the suture.

6. The method for forming a loop at the tail of a medical suture according to claim 1, characterized in that: In step S2, the upper cover is driven to cover the middle section, and then the middle section is driven to rotate. And / or, in step S2, the pusher is driven into the rotation path of the tail section, and during the rotation of the middle section and the tail section, the pusher drives the tail section to bend downward.

7. The method for forming a loop at the tail of a medical suture according to claim 6, characterized in that: The upper cover is provided with a clearance groove that runs vertically through it. In step S2, the middle section is driven to rotate to the bottom of the clearance groove and extend in the same direction as the clearance groove. In step S3, the tail section is driven to bend into the clearance groove and move closer to the middle section located below the clearance groove. And / or, in step S4, the upper cover moves away from the upper part of the middle section, driving the welding head downward and welding the mating part of the tail section to the middle section.

8. The method for forming a loop at the tail of a medical suture according to claim 1, characterized in that: In step S1, the intermediate segment is placed on the first support surface and fixed. In step S2, the main body segment is driven to coil along the coiling channel, which has a second support surface for supporting and guiding the main body segment. At the intersection of the main body segment and the middle segment or at the intersection of the main body segment and the tail segment, there is a height difference h between the second support surface and the first support surface, where h is greater than one times the diameter of the suture line.

9. A medical suture, characterized in that: The suture includes a main body segment, a middle segment, and a tail segment connected sequentially along the length direction. The tail segment is at least partially attached to the middle segment, and the mutually attached portions of the tail segment and the middle segment are fixedly connected. A loop is formed between the tail segment and the middle segment, and the main body segment is slidably inserted into the loop along the length direction.

10. The medical suture according to claim 9, characterized in that: The length of the main body segment is greater than the length of the middle segment, and the length of the middle segment is not less than the length of the tail segment.

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