Combined ultrasonic welder of polymeric containers

Procedure of collection, processing and storage of donor blood preparations in conditions of medical institutions is connected with necessity of reliable hermetic sealing of polymeric container. To solve this problem combined ultrasonic welder is developed, which provides a juncture of high quality about 8 mm in width. As temperature of ultrasonic welding is below melting point of the polymeric material, it excludes excretion of harmful substances in donor blood and an environment.