All-in-one means of separating blood components

摘要

A separation device including a first buoy, a second buoy, a first valve, and a second valve. The first buoy is mounted to a buoy guide post and slidably mounted within a separation chamber. The second buoy is slidably mounted to the guide post and movable between a first position and a second position. The second buoy closes the first valve and opens the second valve when in the first position. The second buoy opens the first valve and closes the second valve when in the second position. The second buoy has a density such that after spinning the device for a suitable period of time a first component of the composition is isolated between the first buoy and the second buoy and a second component of the composition is isolated between the second buoy and the end of the separation chamber that is opposite to a port.

主权项

1. A device having a separation chamber for separating components of a composition according to density comprising:
a port that provides fluid communication between an interior and an exterior of said separation chamber; a buoy guide post; a first buoy fixedly mounted to said buoy guide post and slidably mounted within said separation chamber; a second buoy slidably mounted to said buoy guide post and movable between a first position and a second position along said buoy guide post; a passage defined in said buoy guide post that is in fluid communication with said port; a first valve in said buoy guide post in fluid communication with said passage and an area of said separation chamber between said first buoy and said second buoy; a second valve in said buoy guide post in fluid communication with said passage and an area of said separation chamber between said second buoy and an end of said separation chamber that is opposite to said port; wherein said second buoy closes said first valve and opens said second valve when in said first position; and wherein said second buoy opens said first valve and closes said second valve when in said second position; and wherein said second buoy has a density such that after spinning said device for a suitable period of time a first component of said composition is isolated between said first buoy and said second buoy and a second component of said composition is isolated between said second buoy and said end of said separation chamber that is opposite to said port.