Patent ID: 8337784

Claim:
A centrifuge tube apparatus for centrifuging a sample collected in a syringe, the apparatus comprising: a) a syringe comprising a syringe tube having at least one syringe wall, a syringe interior, a syringe internal diameter, a syringe exterior, a maximal syringe external diameter, a narrowed syringe outlet end having means for connection to an outside instrumentality, and a syringe open end, opposite the narrowed syringe outlet end, communicating with the syringe interior and sized to receive an extensible syringe plunger; b) a syringe plunger sized to closely fit within the syringe interior, axially insertable and extensible from the syringe open end in communication with the syringe interior, and a maximal working syringe plunger extension length from the open end of the syringe; and c) a syringe holder having an holder open end, a holder opposing end, at least one holder wall, a holder interior, a first holder interior diameter greater than the maximal syringe external diameter, a second holder interior diameter less than the maximal syringe external diameter, and wherein the second interior diameter is located at an axial distance from the holder opposing end equal to, or greater than, the maximal syringe plunger working extension length.