Respiratory therapy system including a nasal cannula assembly
US8631799B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2009 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Jul 16, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A nasal cannula for supplying a respiratory gas to a patient and a method of treating a patient with sleep disorder. The nasal cannula comprises a pair of spaced apart supply lines which each have a head at one end thereof with a discharge opening located therein. The opposite end of each supply line is connectable to a high flow respiratory gas source. Each head is sized to be snugly received and retained within one of the nasal cavities of the patient while forming a sufficient leakage passage, between a portion of inwardly facing nasal cavity skin of a patient and a portion of an exterior surface of the head, to facilitate exhausting of any excess respiratory gas supplied to the patient through the leakage passage and also facilitate inhalation of any room air required in excess of the respiratory gas to be supplied to the patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.