Abstract
Tribological interactions between surgical suture and human tissue play an important role in the stitching process. The purpose of the paper is to understanding the tribological behavior of surgical suture interacting with artificial skin, with respect to surgical suture material and structure, by means of a capstan experiment approach and a contact area model. The results indicated that structure and surface topography of the surgical suture had a pronounced effect on the tribological interactions. The apparent coefficient of friction of vicryl surgical suture was the smallest among the three surgical suture materials. As the sliding velocity increased, or the applied load decreased, the coefficient of friction increased. Furthermore, stick-slip phenomena were observed during the sliding procedure.
Highlights
Surgical sutures are essential for the re-approaching of divided tissues and for the ligation of the cut ends of vessels [1], and play a significant role in wound repair by providing support to healing tissues
With the proposed model the experimentally observed frictional behaviour of fibrous surgical suture was explained with theoretical support
A classical capstan method developed for the tribological study of fibers, was adopted to investigate the tribological interaction between surgical sutures and artificial skin in this study
Summary
Surgical sutures are essential for the re-approaching of divided tissues and for the ligation of the cut ends of vessels [1], and play a significant role in wound repair by providing support to healing tissues. The physical properties, handling characteristics, and biological properties affect the basic performance of a surgical suture material [2]. The ideal surgical suture should (1) be pulled through tissues; (2) provide knotting security; (3) allow for easy handling; (4) have predictable tensile strength and performance; and (5) not shrink in tissues. With respect to the ability to be pulled through tissues and knotting security, the friction during surgical suturetissue interactions plays a crucial role. Researchers have tried to improve the frictional performance of surgical sutures by various methods. Chen et al [5] treated and modified braided silk surgical suture with an antibacterial agent. Both the static and dynamic friction in surgical suture-tosurgical suture contacts are affected by the antibacterial treatment, reducing friction to about 16% and 33% respectively
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