Patent ID: 7089943

Claim:
A laryngeal mask comprising: an inflatable ring including an outer periphery, an inner periphery defining an opening, a welded edge projecting into said opening from said inner periphery, and two opposite inflatable first and second wall parts extending from said welded edge to said outer periphery so as to define an inflatable chamber, said welded edge having a forward edge part and a width which is increased in said forward edge part; a gas supply tube having an open end connected to said inflatable ring along said welded edge, said open end defining an aperture communicated with said opening and having a peripheral connection part welded to said welded edge; and a forward guide tab projecting forwardly from said peripheral connection part and said forward edge part of said welded edge and extending over an outer surface of a portion of said first wall part, said portion of said first wall part being immediately adjacent to said welded edge and separated from said second wall part, said forward guide tab being welded to said portion of said first wall part, said portion of said first wall part being substantially coplanar with said peripheral connection part and said forward edge part of said welded edge, said inflatable ring being indented at said portion to hide said forward guide tab when said inflatable ring is inflated.