RecruitingProcedureAnalysis of Red Blood Cell Integrity and Efficiency of Recovery Using a Novel Surgical Sponge-Blood Recovery Device (ProCell)The purpose of this research study is to compare two methods of recovering blood from surgical sponges used during heart and lung surgeries. The two methods are: 1) manually wringing sponges by hand, and 2) automated wringing sponges by an FDA approved suction device. Both methods are already in use in heart and lung surgeries at University Hospitals at the discretion of the surgeon.