新型心血管穿刺针的生物力学性能

Biomechanical performance of new cardiovascular needles.

作者信息

Thacker J G, Ferguson R E, Rodeheaver G T, Edlich R F

机构信息

Department of Mechanical and Aerospace Engineering, University of Virginia School of Medicine, Charlottesville 22908, USA.

出版信息

J Long Term Eff Med Implants. 2001;11(1-2):55-63.

PMID:11495105

Abstract

Cardiovascular needles are now being manufactured from new stainless steel alloys containing high concentrations of nickel, Surgalloy and Ethalloy. The purpose of this study was to compare the biomechanical performance of a cardiovascular needle made of Surgalloy with a comparably sized needle made of Ethalloy. The parameters of biomechanical performance included sharpness, maintenance of sharpness, resistance to bending, and ductility. Because the biomechanical performance of these needles was remarkably similar, cardiovascular needles made of either the Surgalloy or Ethalloy alloys are recommended for cardiovascular surgery.

摘要

心血管针现在由含有高浓度镍的新型不锈钢合金制造，如Surgalloy和Ethalloy。本研究的目的是比较由Surgalloy制成的心血管针与由Ethalloy制成的尺寸相当的针的生物力学性能。生物力学性能参数包括锋利度、锋利度的保持、抗弯曲性和延展性。由于这些针的生物力学性能非常相似，因此建议在心血管手术中使用由Surgalloy或Ethalloy合金制成的心血管针。