Patent ID: 9302042
Filing Date: 2016-04-05
CPC Classification: A61M,B01D

Claim Text:
1. A method for extracting platelet-rich plasma from whole blood and returning blood components to a donor comprising: a) drawing whole blood from a donor; b) introducing anticoagulant into the whole blood drawn from the donor; c) introducing the anticoagulated whole blood into a separation chamber, wherein the anticoagulated whole blood is separated into a number of blood components by centrifugation; d) transferring plasma separated from the anticoagulated whole blood to a plasma container; e) returning a first volume of the plasma from the plasma container back to the donor; f) repeating steps a through d; g) extracting platelet-rich plasma from a second volume of plasma within the separation chamber by surge elutriation; h) transferring said platelet-rich plasma into a platelet-rich plasma container; and i) returning the remaining blood components within the separation chamber to the donor.