Nasal cannula mounted solely by frictional engagement with the columella
US5794619A · kind A · utility
185Cited by
10References
1Claims
0Family size
Inventors
Key dates
| Filing date | Feb 18, 1997 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Feb 18, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/912
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The avoiding of uncomfortable-to-the-touch ear loops and the like in the attaching insertion of oxygen-delivering inserts of a cannula into a patient's nose which uses a 0.25 inch diameter in a circular base of a U-shape of the cannula to provide a chord which in width wise size is smaller than the width wise size of a patient's typical columella which divides in two the nasal cavities, such that the size difference results in a "pinch" fit which holds the cannula in place during its use, and the referred to columella not being sensitive-to-touch thus does not contribute to patient discomfort.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.