FIELD: medical engineering.
SUBSTANCE: device has working member manufactured as viscoelastic ring-shaped corrugation having blank wall, tightly embracing a base ring with passage orifice of round or oval shape. Movable part of the working member is represented with one or several cusps belonging to the blank wall of the viscoelastic corrugation. The cusps have thickenings in diametric or radial direction and/or supporting pins transecting the passage opening to prevent them from being drawn by pressure into passage opening of the base ring.
EFFECT: simplified valve design.
7 cl, 10 dwg
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