Partial absorbable sport medicine orthopedic suture line and production method thereof

Abstract

The invention provides a partial absorbable sport medicine orthopedic suture line and a production method thereof. The suture line is characterized in that part of suture line is absorbable, and shelllayer weaving yarns are partially absorbable yarns formed by twisting absorbable fibers and non-absorbable fibers. The production method is characterized by comprising the following steps: firstly, twisting the absorbable fibers and the non-absorbable fibers into partially absorbable yarns by a doubler winder to be used as braided yarns; then selecting suitable structure, process and parameters,and producing the suture lines of required specifications by using a textile micro shaping weaving technique. The suture line obtained in the invention can be used for avulsion repairing of joint softtissues, and plays a good dynamics support during the repairing process. During the healing process, the absorbable fibers can be gradually degraded, and uniform pores are formed in surfaces, so thatthe growth and migration of cells are facilitated and tissue healing is promoted; in addition, the non-absorbable fibers in each strand of weaving yarns can ensure the relative stability of the structure during degradation.

Description

technical field [0001] The invention relates to a partially absorbable sports medicine orthopedic suture and a preparation method thereof, belonging to the field of biomedical textile materials. Background technique [0002] With the popularization of national fitness exercise, the amount of avulsion injuries of joint soft tissues such as tendons, ligaments, and joint capsules caused by exercise is increasing year by year. Once an injury occurs, it will inevitably bring a lot of inconvenience to the life of the patient. In addition, the regeneration ability of the joint soft tissue is poor, and the repair often needs to last for several months or even years. Therefore, more and more patients choose surgical repair. Suture is an indispensable material in the operation process. It plays a role of mechanical support during the repair of joint soft tissue and has an important impact on the repair effect. [0003] Since joint soft tissue involves joint movement, the requirements...

AI Technical Summary

Problems solved by technology

However, due to the smooth surface of ultra-high molecular weight polyethylene UHMWPE, slippery knots are prone to occur during use, and more knots need to be tied to ensure the safety of the knots, which will inevitably lead to excessively large surgical knots, thus providing a good environment for bacteria to hide In addition, from the perspective of long-term use, non-absorbable materials exist as foreign objects in the body for a long time, which may cause inflammation and pain at any time

Although absorbable sutures can alleviate the above-mentioned problems of joint safety and adverse reactions caused by long-term foreign bodies to a certain extent, due to their degradation and absorption, they often lose their mechanical support in a short period of time, which is difficult to meet the needs of joint soft tissue repair. Therefore, if the excellent mechanical properties of non-absorbable materials can be combined with the good degradation performance and biological properties of absorbable materials, it is expected to obtain a kind of material that can not only meet the mechanical requirements during the repair period, but also improve the safety of knotting. Orthopedic sutures that can reduce foreign body reactions to a certain extent

[0004] Existing patents on sutures include: ① Ultrabraid suture developed by Smith & Nephew, Fiberwire suture developed by Arthrex, and S-Weave suture developed by Kailitai. Mechanical requirements, but because it is a non-absorbable suture, the inflammatory reaction caused by foreign body reaction is still relatively large, and five to six knots need to be tied during the operation to ensure the safety of the node, and the node is relatively large; ② Orthocord suture developed by Depuy Company And the sutures reported in patents with authorization numbers US20050149118A1 and US008940018B2 are high-strength partially absorbable sutures, and the partially absorbable shell is woven by respectively arranging absorbable fibers or non-absorbable fibers on different spindles of the braiding machine. Although the suture can achieve partial absorption, provide good mechanical support in the early stage of repair, and can also improve the safety of the node, but the structural damage is more serious after the degradation of the absorbable components (for example, the suture woven from 16 strands of yarn can After the absorption component is degraded, it becomes 8 strands, and the structure is easy to become very loose and uneven compared with the original suture, and the supporting effect of the suture will be greatly reduced)

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