A biopsy device consisting of a housing, a coring section on the housing having a cylindrical wall with a leading cutting edge to be bored into a tissue from which a biopsy sample is to be taken and an internal hollow space bounded by an inside surface of the cylindrical wall for accepting a sample of...http://www.google.es/patents/US5074311?utm_source=gb-gplus-sharePatente US5074311 - Biopsy device
