ECHOGENIC ENHANCEMENT FOR A NEEDLE

摘要

A needle (100; 200; 300) includes a surface with a plurality of first ultrasound reflecting depressions (106, -206, -306) formed therein. The first depressions are distributed along at least a portion of a length of the needle separated from one another by intervening sections (108; 208; 308). Each of the first depressions is extending along a curve between first and second ends adjacent to corresponding ones of the intervening sections with troughs at which surfaces of each of the first depressions most closely approach a longitudinal axis of the needle being offset toward the first ends of each of the first depressions.