AUTOMATED BIOPSY INSTRUMENTS

摘要

The present invention provides automated biopsy instruments (10) especially useful for improving minimally invasive medical procedures to obtain soft tissue biopsy samples. The biopsy instruments (10) provide side-by-side actuators (30, 32) which retract a stylet (22) and a cannula (20) in specific sequences. The biopsy instruments (10) may include a single spring or two springs (48) to sequentially fire the stylet (22) and the cannula (20).