| 摘要 |
FIELD: medicine. ^ SUBSTANCE: endonasal filter contains two in fact planar filtering components, connected at their respective ends by flexible element, fixed, like spring, across cartilage between two nostrils. Filtering components have shape of concave-curved glass, like shape of section at entrance to canal, communicating with nasal cavities. Filtering components are connected by thin unit from plastic material in form of horse shoe-shaped arch, two parallel sides of which continue to filtering components, on whose surfaces they form an oval, supporting said component, and with which they are geared by means of heat application. ^ EFFECT: invention ensures tight fit of filtration device to nose, thus preventing ingress of unfiltered air to user. ^ 4 cl, 5 dwg |
