Laryngeal mask
US8631796B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 2003 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Oct 8, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/0488
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A laryngeal mask of the type used to facilitate lung ventilation and the insertion of endo-tracheal tubes or related medical instruments through a patient's laryngeal opening as used during general anesthesia, intensive care, or critical patient care is described that includes an inflatable positioning and a respiratory tube. The inflatable positioning shield is formed to fit within a patient's oropharynx, and has an inflatable, hollow peripheral portion, a pliable base in fluid communication with the peripheral portion, a shield recess formed after inflation of the peripheral portion, and a rear portion formed between the posterior base and the peripheral portion after inflation of the peripheral portion, wherein the posterior base has a recessed front portion. The respiratory tube has a proximal end lumen, a curved tubular body of sufficient size to permit the passage of endo-tracheal tubes or related medical instruments, and a distal end passing through and secured to the rear portion of the positioning shield. The distal end terminates at a distal lumen, which passes through and is secured to the rear portion of the positioning shield such that tubes and instruments passing thr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.