Pressure actuated valve systems and methods
US10265495B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2014 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Aug 16, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/583
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods are provided for decreasing intracranial pressure and enhancing circulation, as well as for increasing the respiratory rate and encouraging spontaneous respiration. According to such methods, a valve system is coupled with a person's airway. The valve system has an exhalation valve and an patient port that interfaces with the person's airway. The exhalation valve includes a diaphragm having a textured surface. The diaphragm is positioned across an exhalation valve seat and contacts a distal end of the exhalation valve seat, and is configured to prevent or impede respiratory gas flow to the person's lungs until an expiratory pressure equals or exceeds an opening pressure of the exhalation valve, at which time the diaphragm moves away from the distal end to create an open exhaust channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.