弯曲手术缝合针的生物力学

Biomechanics of curved surgical needle bending.

作者信息

Abidin M R, Towler M A, Rodeheaver G T, Thacker J G, Cantrell R W, Edlich R F

机构信息

Department of Plastic Surgery, University of Virginia School of Medicine, Charlottesville 22908.

出版信息

J Biomed Mater Res. 1989 Apr;23(A1 Suppl):129-43. doi: 10.1002/jbm.820231312.

DOI:10.1002/jbm.820231312

PMID:2722902

Abstract

Because needle bending resistance is such an important factor in the selection of surgical needles, a standard quantitative test of needle bending has been devised to study the biomechanics of deformation of needles from three different commercial manufacturers. The superior resistance to deformation of needles made by one manufacturer has been related to the specific alloy, ASTM 45500 stainless steel, employed in its production. The needles produced from ASTM stainless steel 45500 have stronger tensile and yield strengths than those of the other alloys, accounting for their greater resistance to bending.

摘要

由于抗针弯曲性在手术针的选择中是一个如此重要的因素，因此已经设计了一种标准的针弯曲定量测试，以研究来自三个不同商业制造商的针的变形生物力学。一家制造商生产的针具有卓越的抗变形能力，这与生产中使用的特定合金——ASTM 45500不锈钢有关。由ASTM 45500不锈钢生产的针比其他合金的针具有更强的拉伸强度和屈服强度，这就是它们具有更大抗弯曲能力的原因。