CATHETER DEVICE FOR ODOUR-REDUCING DELIVERY AND/OR DISCHARGE OF SUBSTANCES TO/FROM THE HUMAN OR ANIMAL BODY

The invention describes a specific, multilayer tubular film for the manufacture of catheter devices that are usable in the most odor-neutral manner possible. The passage of substances through the film wall may be reduced or avoided by incorporating suitable barrier layers. The delivery of strong-smelling active substances and also the discharge of intensely odorous excretions or secretions may be optimized in a problem-solving manner by proportional layers of EVOH- or PVDC-based materials, for example, in the multilayer film structure. The invention combines these barrier layers with mechanically loadable carrier layers made of polyurethane (PUR), PVC, or also polyamide (PA) or PA-related material layers, for example. The invention describes, among other things, embodiments of catheters having retaining balloon components that are equipped with odor-inhibiting layer portions over the entire intracorporeal and extracorporeal surface of the catheter and that thus provide maximum protection against release of odors. The invention further describes embodiments that are manufacturable in a particularly advantageous manner, with several of the components that make up the catheter being manufactured by simultaneous forming from a single film tube blank.