Biopsy needle, with a sample taking section, comprises a longitudinal cutter with a corrugated cutting edge for a sample to be cut by a to-and-fro or a rotary movement

摘要

A biopsy needle, with a sample taking section (1), comprising a corrugated cutter (3) along a side cutting edge of the needle, where the cutting edge follows a sine curve path, with outer (4) and deeper inner (5) contours, the cutting corrugations have a height (H) of 0.5-1.0 mm and the corrugations are at length intervals (L) of 1.5 mm, is new.