Tribble C G, Moody F P, Girard P, Towler M A, McGregor W, Bellian K T, Edlich R F
Department of Plastic Surgery, University of Virginia School of Medicine, Charlottesville 22908.
Am Surg. 1992 Aug;58(8):458-62.
A new, compound-curved needle has been designed and developed for vascular surgery from a unique stainless steel alloy, American Society for Testing Materials (ASTM) 45500. This needle has two different radii of curvature and a relatively straight body followed by a short, curved tapered point. Despite its geometry, it exhibits a similar sharpness, as well as resistance to bending and breakage, as did a curved needle with a single radius of curvature manufactured from the same alloy. The design of this new needle enabled the surgeon to pass it through the vessel wall with greater accuracy to a controlled depth and length of bite than the curved cutting edge needle with a single radius of curvature.
一种新型的复合弯曲针已由一种独特的不锈钢合金——美国材料与试验协会（ASTM）45500设计并开发用于血管手术。这种针有两个不同的曲率半径，主体相对较直，后面跟着一个短的、弯曲的锥形尖端。尽管其几何形状如此，但它与由相同合金制造的具有单一曲率半径的弯曲针相比，具有相似的锋利度，以及抗弯曲和抗断裂能力。这种新针的设计使外科医生能够比具有单一曲率半径的弯曲切割边缘针更精确地将其穿过血管壁，达到可控的咬入深度和长度。
