Patent ID: 6035852
Filing Date: 2000-03-14
Classification: A61M,A62B

Abstract:
A respirator or anesthesia mask for a normal adult comprising:(a) an inflatable cuff;(b) a support shell with an interior surface adapted to be directed to the face of a patient;(c) cuff attachment means that sealingly interpose between and secure the inflatable cuff to the support shell at a lower edge of the support shell;(d) a face directed outline edge adapted to comprise an innermost support edge of the cuff attachment means, where such outline edge is symmetrical about a longitudinal medial line plane of the mask;(e) the outline edge forming defining edges of at least two planar shapes perpendicular to the longitudinal medial line plane, a first plane in a nose bridge section and a second plane in a nasal/maxilla section, the first plane and second plane having a first vertex joining them in angled relation to each other such that the upward deflection of the second plane with respect to the first plane is about from 20 to 40 degrees; and(f) the first plane consists of (i) a curved section forming a portion of the outline edge adapted to situate the cuff on the bridge of the nose and (ii) the first vertex which forms a straight line about 40 to 65 mm.