“外科器械”的英语表达是 surgical instruments 。
“surgical”意为“外科的;外科手术的” ;“instrument”常见意思为“器械;仪器;工具” ,二者组合“surgical instruments”即指用于外科手术的各种器械。例如:The hospital needs to purchase a new set of surgical instruments.(这家医院需要购置一套新的外科器械 。)