870.4400—Cardiopulmonary bypass blood reservoir.
        
        (a) Identification.
         A cardiopulmonary bypass blood reservoir is a device used in conjunction with short-term extracorporeal circulation devices to hold a reserve supply of blood in the bypass circulation.
    
    
        
        (b) Classification.
         Class II (performance standards), except that a reservoir that contains a defoamer or filter is classified into the same class as the defoamer or filter.