the patented intervoid sterile bag of coveris flexibles in winsford is a multiindustry sampling package innovation that combines ultrasterile, ultrasecure, composite sampling systems for the first time.the intervoid sterile represents a major breakthrough in flexible packaging for medical, food, and other specimen sampling through its highly technical conversion methods.the sterile bags combine unique track & trace identification, patented tamper evident closure and tape, perforation, secondary gamma sterilization and leakresistant properties to deliver a composite, s