Tracheostomy valves and related methods
US9364630B2 · kind B2 · utility
4Cited by
42References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2014 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Aug 13, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/789
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The embodiments of the present tracheostomy valves include a flexible diaphragm abutting a rib shaped substantially as a flat plate. Opposite the rib, the diaphragm abuts a boss and forms an uninterrupted seal therewith. As the tracheostomized patient inhales, the diaphragm bends about the rib, interrupting the seal and allowing air to flow smoothly into the valve. The features of the various embodiments contribute to a positive seal at all times except during inhalation, and low resistance to airflow through the valve during inhalation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.