Laryngeal mask
US9889264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2015 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Mar 17, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2207/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A laryngeal mask includes an airway tube having an inner lumen and a distal end; and a mask portion connected at a proximal end thereof to the distal end of the airway tube and having a distal tip opposite the proximal end. The mask portion includes an inflatable cuff including an anterior cuff surface, and a wedge portion including a stabilization surface and two walls connected to the inflatable cuff and extending toward from the stabilization surface, the stabilization surface extending from the distal tip of the mask portion toward the distal end of the airway tube at a wedge angle of between about 12 and 30 degrees, the wedge angle formed between the stabilization surface and the anterior cuff surface when the inflatable mask is inflated. The stabilization surface is transversely and longitudinally substantially flat to stabilize the laryngeal mask in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.