Scavenging mask

Details Scavenging mask Scavenging mask

1988-02-01

1989-02-28

Burr, Edgar S.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

128910, 12820628, 12820525, 12820329, A62B 1802, A62B 1808

Patent

active

048076171

ABSTRACT:
Removable apparatus suitable for scavenging gas from the vicinity of a gas delivery mask applied to a face. The mask has a convex outer surface, and the apparatus comprises a cup having an inner concave surface adapted to form a gap between it and the convex surface of the mask when the cup is positioned over the mask. The cup is adapted so as not to contact the face when positioned over the mask when the mask is placed over the face. Also provided is an aperture in the cup for allowing evacuation of the gas from the gap.

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