Negative-pressure dome

Abstract

A negative-pressure dome includes a transparent domed shield, a flexible skirt attached to the perimeter of the domed shield, a hose attachment port formed on the domed shield; and access openings in at least one of the domed shield and the flexible skirt. The transparent domed shield consists of a clear rigid plastic. The access openings may be at least partially occluded by flexible flaps that are deflectable to increase an open cross-section of the access openings. In a first configuration, the access openings are disposed in the domed shield sized to cover a face and are sized to have a cross-section between 3 cm2 and 200 cm2. In a second configuration, the access openings are disposed in the flexible skirt and are sized to have a cross-section between 30 cm2 and 200 cm2, while the domed shield is sized to cover head and chest of a subject.

Dependencies are inferred from the claim text.