Apparatus and methods for separating blood components
AssigneeNew Orleans
InventorsRandy Dorian, Michael D. Leach, Richard W. Storrs, Scott R. King
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Abstract
Apparatus and methods for separating blood components are disclosed in which an apparatus for separating blood generally includes a tube defining a channel and configured for receiving a quantity of blood and a float contained within the tube and having a density which is predefined so that the float is maintained at equilibrium between a first layer formed from a first fractional component of the blood and a second layer formed from a second fractional component of the blood. Upon completion of the centrifugation, the first layer may be removed from the tube while the float isolates the second layer from the first layer.
Claims17
An apparatus for separating blood, comprising:
- a tube defining a channel and configured for receiving a quantity of blood, wherein the channel is sealed at a proximal end of the tube by a septum;
- and
- a float contained within the tube such that the float is vacuum sealed within the channel via the septum, the float having a density which is predefined between 1.0 to 1.1 gram/ml so that the float is maintained at equilibrium between a first layer formed from a first fractional component of the blood and a second layer formed from a second fractional component of the blood,
- wherein the float further has a cylindrical body with a proximal portion of the float having an angled surface which is angled between about 2 to 45 degrees relative to a normal surface of the float such that the angled surface has a surface topography selected to retain a layer of red blood cells upon the angled surface of the float.
Dependencies are inferred from the claim text.