MULTI-LAYERED TUBE FOR MEDICAL APPLICATION AND MEDICAL INFUSION BAG Russian patent published in 2015 - IPC A61J1/10 A61J1/20 A61M5/14 B32B27/32 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medical equipment. Medical infusion bag contains case of polyethylene film in form of bag for storing medical infusion solution and welded to case bottom tubular port, through which medical infusion solution is discharged from case. Multi-layered tube for medical application is used as tubular port. Tube contains external, internal and adhesive layers. External layer contains high-density polyethylene. Internal layer contains polymer material, which contains random polypropylene and/or block-polypropylene. Adhesive layer is placed between external and internal layers and contains adhesive resin. Tube can also contain external and internal layers. External layer contains polymer material, which contains high-density polyethylene and adhesive resin, where content of adhesive resin constitutes from 20 to 60 wt %. Internal layer contains polymer material which contains random polypropylene and/or block-polypropylene.

EFFECT: application of group of inventions will make it possible to increase adhesive ability of tube to polyethylene bag and polypropylene connector, as well as to increase thermal resistance.

3 cl, 3 dwg, 3 tbl, 16 ex