Inspiratory muscle training device with variable loading
OwnerAlison Kay McConnell, Michael Peter Caine +1inventors
InventorsAlison Kay McConnell, Michael Peter Caine, Graham Keith Lacy
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Abstract
An inspiratory muscle training device comprises a chamber having an opening for the passage of air to be inhaled and exhaled, and an inlet permitting air to be inhaled to enter the chamber and to pass to the opening. A one-way exhaust valve permits exhaled air entering through the opening to escape from the chamber, and another valve is provided to resist the entry of air to be inhaled into the chamber, the latter valve serving to vary the degree of resistance in dependence upon the volume of air that has passed through the inlet.
Claims15
An inspiratory muscle training device comprising:
- a chamber having an opening for the passage of air to be inhaled and exhaled, an inlet permitting air to be inhaled to enter the chamber and to pass to the opening, a one-way exhaust valve permitting exhaled air entering through the opening to escape from the chamber, and means to resist the entry of air to be inhaled into the chamber, wherein the means to resist the entry of air includes means to vary the degree of resistance in dependence upon the volume of air that has passed through the inlet during a single inspiratory cycle.
An inspiratory muscle training device according to claim 15, wherein means is provided for varying the proportion of air flowing through the further valve relative to the volume of air flowing through the first-mentioned valve so as to vary the rate at which the pressure differential changes.
Dependencies are inferred from the claim text.