An apparatus for removing portions of bone marrow from a bone is provided. The apparatus includes a housing and a hollow drive shaft operable to engage a gear assembly. The hollow drive shaft includes a first end operable to penetrate the bone and a second end operable to allow retrieval of portions...http://www.google.de/patents/US20060167378?utm_source=gb-gplus-sharePatent US20060167378 - Apparatus and method to access the bone marrow for oncology and stem cell applications
