Lüer's Lure: From an international standards perspective

摘要

The Luer connector, a specific type of small-bore connector, is encountered daily in clinical practice. The familiar Luer 6% taper male (slip), and the Luer-locking mechanism (LUER-LOK, Becton Dickinson, Franklin Lakes, NJ) have been used for nearly a century in a wide range of intravenous, neuraxial, enteral, airway and other medical applications. The Luer design began in 1897 when Hermann W. Liier filed U.S. patent no. 583,382' for his hypodermic precision ground-glass syringe. In 1925 Fairleigh S. Dickinson filed U.S. patent no. 1,742,4972 for a modification of Liier's syringe (fig. 1). The modification included a 6% taper and a novel sleeve-carrying component, element 5 in figure 1. The spiral cams, elements 9 and 10 in figure 1, were spaced a sufficient distance apart to permit the hub to freely rotate until it began to frictionally engage with the outer surface of the nozzle, element 2.