FIELD: medicine.
SUBSTANCE: invention relates to medical equipment. Components of expiratory limb include vapour-permeable materials, which are permeable for water vapour and, in fact, impermeable for liquid water and volume flow of gases. Limb channel from foamed polymer includes thermoplastic elastomeric material and cell voids, distributed inside solid material.
EFFECT: invention makes it possible to increase strength of limb wall with acceptable vapour-permeability.
24 cl, 4 tbl, 20 dwg
