A bone marrow biopsy device is provided that includes a cannula member and a stylet member each having arcuate handles having a length greater than the width thereof, a luer lock connector, and a handle locking arrangement. The cannula member handle has a recess which receives a collar on the stylet...http://www.google.de/patents/US4793363?utm_source=gb-gplus-sharePatent US4793363 - Biopsy needle
