Andrew Skelton;Alison Kay McConnell;Franjo Cecelja;David Alastair Spurling;Darren Hoe Yung Lam;Peter Broomhead
发明人:
David Alastair Spurling,Darren Hoe Yung Lam,Andrew Skelton,Alison Kay McConnell,Franjo Cecelja,Peter Broomhead
申请号：
US12737167
公开号：
US08459255B2
申请日:
2009.06.30
申请国别(地区):
US
年份:
2013
代理人:
摘要：
A respiratory muscle training device includes a chamber (1) containing a variable orifice valve assembly (3). An inlet (9) is provided at a first side of the valve assembly permitting air to be inhaled into the chamber, and an outlet (11) is provided at a second side of the valve assembly permitting air that has passed through the valve assembly to be inhaled by a user. A pressure sensor (7) determines a pressure differential across the valve assembly. Means is provided for determining the opening area of the valve assembly, and control means (15, 47, 49) is provided for varying the orifice of the valve assembly in dependence upon a pressure differential determined by the pressure sensor and upon an opening area of the valve assembly.
