Medicinal medium transport tube - has inner hose formed of spiral strip and unaffected by bends in outer hose

摘要

The flexible medium transport tube is for medical purposes, having an outer hose extending between the two ends. An outer hose (21) is accommodated inside the outer one (15), and of smaller diameter than the intermediate portion (16) of the latter. It comprises a spiral strip with adjacent turns, flexible enough to allow easy bending, and forms on open passage for the fluid unaffected by bends or kinks in the outer hose. The outer hose can be of latex, its intermediate section being between 127 and 279.4 x 10-3 mm. Its internal diameter can be between 1.5 and 3 times the external diameter of the inner tube.