Abstract: An apparatus that allows for separating and collecting a fraction of a sample. The apparatus, when used with a centrifuge, allows for the creation of at least three fractions in the apparatus. It also provides for a new method of extracting the buffy coat phase from a whole blood sample and mesenchymal stem cells from bone reaming material. A buoy system that may include a first buoy portion and a second buoy member operably interconnected may be used to form at least three fractions from a sample during a substantially single centrifugation process. Therefore, the separation of various fractions may be substantially quick and efficient.
Type:
Grant
Filed:
May 25, 2006
Date of Patent:
November 16, 2010
Assignee:
Biomet Biologics, LLC
Inventors:
Michael D. Leach, Joel C. Higgins, Matthew Swift, Nathan Gordon