Patent ID: 11951253
Assignee: SOLOPEP LIMITED
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 11:
12. A device, comprising:
a housing including a toroidal track, an inlet configured to permit air into the toroidal track, an outlet configured to permit air out of the toroidal track, an opening in a wall of the toroidal track, and a mouthpiece having a substantially flat funnel shape that tapers inwardly towards the inlet that is in fluid communication with the inlet; and
a revolving body configured to revolve around the toroidal track in response to flow of air from the track inlet to the track outlet, wherein revolutions of the revolving body around the toroidal track causes intermittent partial blocking of the outlet, and cyclical fluctuations of airflow resistance,
wherein the inlet is configured to have air enter the toroidal track tangentially, and
the opening fluidly connects the toroidal track with a device configured to measure a number of revolutions of the body.