Patent ID: 7316659

Claim:
A feeder for dosing air to an external auditory meatus of a person, the feeder comprising: a pump body having a through hole and a first end at the through hole, the first end shaped to be connected to an ear adapter shaped for installation in the auditory meatus; a neck on the pump body at a second end of the body and at the through hole, the neck having a free outer end; and an air pump device comprising a resilient compressible bellows, the bellows having an open end that receives the outer end of the neck, the bellows being mounted at a selected, variable position along the neck, the bellows having a closed end opposing the outer end of the neck and operable for providing the pump body with a manually compressible and temporarily adjustable volume, the volume being adjustable as a function of the variable position of the bellows on the neck, wherein the feeder is operable to provide a pulsating, repeatable and adjustable quantity of air to be supplied to the auditory meatus when the closed end of the bellows is compressed toward the free outer end of the neck.