Respiratory muscle training device
First Claim
1. A respiratory muscle training device comprising a body portion (23) and a separable mouthpiece portion (25), the mouthpiece portion including:
- a chamber (1) containing a variable orifice valve assembly (3);
an inlet (9) at a first side of the valve assembly permitting air to be inhaled into the chamber; and
an outlet (11) at a second side of the valve assembly permitting air that has passed through the valve assembly to be inhaled by a user, and the body portion including;
a pressure sensor (7) for determining a pressure differential across the valve assembly;
means for determining the opening area of the valve assembly; and
control means (15, 47, 49) including an actuator (49) for varying the orifice of the valve assembly of the mouthpiece portion (25) in dependence upon a pressure differential determined by the pressure sensor and upon an opening area of the valve assembly.
2 Assignments
0 Petitions
Accused Products
Abstract
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.
10 Citations
24 Claims
-
1. A respiratory muscle training device comprising a body portion (23) and a separable mouthpiece portion (25), the mouthpiece portion including:
-
a chamber (1) containing a variable orifice valve assembly (3); an inlet (9) at a first side of the valve assembly permitting air to be inhaled into the chamber; and an outlet (11) at a second side of the valve assembly permitting air that has passed through the valve assembly to be inhaled by a user, and the body portion including; a pressure sensor (7) for determining a pressure differential across the valve assembly; means for determining the opening area of the valve assembly; and control means (15, 47, 49) including an actuator (49) for varying the orifice of the valve assembly of the mouthpiece portion (25) in dependence upon a pressure differential determined by the pressure sensor and upon an opening area of the valve assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
-
Specification