Medical devices and apparatus for use in accessing and aspiration of bone marrow, namely, aspiration needles, access cannula and cannula spacer, surgical apparatus and instruments in the nature of powered drivers, ratcheting screwdrivers, torque limiting drivers, and torque measuring devices, body tissue containment apparatus and specimen containers, and kits containing these items, sold as a unit; medical devices and apparatus for use in performing biopsies of bone and bone marrow, namely, b...