CHANGEABLE NOSE FILTER Russian patent published in 2003 - IPC

Abstract RU 2217176 C2

FIELD: medicine, may be used by a patient for treatment of diseases or protection against pollutions of the atmosphere by placement of filters in the accessory nasal sinuses. SUBSTANCE: changeable nose filter represents a filtering element in the form of truncated cone. The novelty is in the fact that the truncated cone is provided with circular cuts, the lower and upper bases of the cone have concave cone-shaped funnels. EFFECT: simplified construction. 3 cl, 2 dwg

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RU 2 217 176 C2

Authors

Kalmykov F.I.

Dates

2003-11-27—Published

2002-01-22—Filed