Apparatus and method for relieving dyspnoea
US8701664B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 9, 2004 |
| Grant date | Apr 22, 2014 |
| Priority date | — |
| Expiry date | Jan 20, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/107
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus (1) for relieving dyspnoea in an ambulatory exercising subject comprises a housing (3) to be worn on the subject, and within which a variable speed air blower motor (5) is located for delivering an air supply to the subject through a mouthpiece (10) at a pressure similar to average intrinsic positive end-expiratory pressure of the subject. A pressure transducer (25) in the mouthpiece (10) monitors the pressure during breathing cycles of the subject, and a control circuit (22) determines the average intrinsic positive end-expiratory pressure of the subject over five breathing cycles. The control circuit (22) operates the air blower motor (5) for delivering the air supply to the subject at a pressure similar to the determined average intrinsic positive end-expiratory pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.