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US 2002/0165463 A1Published application
Device
AssigneeSmithKline Beecham Corporation
InventorsPhilip William Farr, Thomas Paul McCarthy
Life of this patent
Estimating the term…
Abstract
A device having variable inspiratory resistance suitable for measuring the inspiratory strength of a patient which comprises a chamber in communication with a mouthpiece, said chamber (a) being provided with a calibration system for measuring the inhalation flow rate during inhalation through the mouthpiece and (b) being provided with a variable resistance feature by which the resistance to airflow through the device may be altered.
Claims22
A device having variable inspiratory resistance suitable for measuring the inspiratory strength of a patient comprising:
- an elongate chamber having first and second ends defining a pathway and adapted for air to enter the second end wherein the first end of the chamber is in communication with a mouthpiece,
- located in the chamber, a calibration system adapted to measure an inhalation flow rate, the calibration system including sliding member adapted to slide and be retained within the chamber, and,
- a variable resistance system adapted to vary the area through which air leaves the chamber at the first end, the variable resistance system adapted to include one or more settings suitable to correspond to one or more inhalation devices.
Dependencies are inferred from the claim text.