非可吸收倒刺缝合线握持力及其影响因素  

Holding force of non-absorbable barbed sutures and its influencing factors

作　　者：成悦 左涵 安琪 李大伟 张伟[1,2] 付译鋆 CHENG Yue;ZUO Han;AN Qi;LI Dawei;ZHANG Wei;FU Yijun(School of Textile and Clothing,Nantong University,Nantong,Jiangsu 226019,China;National&Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health,Nantong,Jiangsu 226019,China)

机构地区：[1]南通大学纺织服装学院,江苏南通226019 [2]安全防护用特种纤维复合材料研发国家地方联合工程研究中心,江苏南通226019

出　　处：《纺织学报》2023年第6期66-71,共6页Journal of Textile Research

基　　金：南通市科技计划项目(MS22022068);江苏高校“青蓝工程”资助项目(苏教师函[2020]10号)。

摘　　要：握持力是评价非可吸收倒刺缝合线临床应用性能的一个重要指标,为探究影响非可吸收倒刺缝合线握持力的因素,选择5种不同针型结构的实验室自制倒刺缝合线和1种商用倒刺缝合线,在硅胶仿真模拟皮肤组织上进行弯曲模型握持力测试,并利用显微镜观察握持力测试前后不同试样的微观形貌。实验结果显示:缝合线线材的外括角、剪切深度、剪切距离等结构参数直接影响倒刺缝合线的握持力;缝合针的形状、弧形、弦长和曲率等结构参数对倒刺缝合线的握持力也有一定影响,相同条件下,圆形针比三角形针的握持力大,缝合针的弧形和弦长越大、曲率越小,倒刺缝合线的握持力越大。Objective The holding force of non-absorbable barbed sutures is a very important index,but its influencing factors have not been systematically studied.Therefore,this work was carried out to explore the influence of needle shape and linear structure on the holding force of non-absorbable barbed sutures.Method Six kinds of barbed sutures with different needle types and linear structures were prepared and tested via bending model on silica gel artificial skin tissue.The micromorphology of different specimens before and after the holding force test was observed by microscope.Besides,chemical composition and tensile performances of different specimens were tested and analyzed.Results After the holding force test,silica gel residue can be observed at the roots of the two barbed sutures(Fig.4),indicating that the barb has a certain ability to hold the silica gel artificial skin tissue.Fourier transform infrared spectroscopy(FT-IR)results illustrated that the chemical structures of sutures A1 and B were both non-absorbable polyamide sutures(Fig.5).Tensile performances of A1 and B sutures were compared,and there is no significant difference in strength between the two,but suture B showed a better breaking elongation(19.42±2.67)%and flexibility(Tab.3).Finally,the holding force of the six barbed sutures was tested via bending model on silica gel artificial skin tissue and the influence of barb and needle structure on holding force was analyzed(Fig.7).The external expansion angle of suture A1 and B were(15.13±2.08)°and(16.32±1.01)°,the cut depth of suture A1 and B were(0.091±0.018)mm and(0.114±0.041)mm.The two parameters of suture 6 were greater than that of suture 1,which is beneficial to improve the holding area of barb to surrounding artificial skin tissue.In addition,the cut distance of suture B was(0.865±0.016)mm,less than that of suture A1,which was(0.982±0.018)mm,indicating a higher barb density for suture B.The influence of needle structure on holding force was further divided into needle shape,chord length

关 键 词：倒刺缝合线 非可吸收 握持力 拉伸性能 微观形貌 

分 类 号：TS101.4[轻工技术与工程—纺织工程] TS102.5[轻工技术与工程—纺织科学与工程]