Abstract: The present invention provides an improved anaesthetic scavenging face mask having a scavenging channel running along the perimeter of the mask. The mask is provided with an anaesthetic gas inlet and a vacuum outlet. The scavenging channel is connected to the vacuum outlet.
February 13, 1987
Date of Patent:
September 13, 1988
MDT Diagnostic Company
John C. Schmoegner, Charles B. Swenson, J. Miles Branagan