The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 13, 2004
Filed:
Feb. 01, 2002
Applicant:
Inventor:
Christophe Van Landuyt, London, GB;
Assignee:
Smiths Group PLC, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 1/600 ; A62B 9/06 ;
U.S. Cl.
CPC ...
A61M 1/600 ; A62B 9/06 ;
Abstract
A laryngeal mask assembly has a tube with a mask at one end defining a cavity surrounded by a sealing cuff. A blocker is operable to prevent entry of the epiglottis into the cavity during insertion of the assembly but does not hinder gas passage along the assembly after insertion. The blocker may be a ballon that is inflated during insertion and is then deflated. Alternatively, the blocker may be a web attached to the patient end of the assembly by a rupturable joint. In another arrangement the blocker is an insert with an end that expands to fill the cavity but that is compressible to allow the insert to be pulled out from the machine end of the assembly.