PNEUMATIC MASSAGING APPARATUS FOR DRUM MEMBRANE Russian patent published in 2007 - IPC A61H9/00 A61F11/00 

FIELD: otorhinolaryngology, in particular, technique for pneumatic massaging of drum membrane.

SUBSTANCE: pneumatic massaging apparatus has hermetically sealed chamber and devices for hermetic connection to acoustic meatus. In hermetically sealed chamber, there are fluid oscillator having outlet channels connected to fluid amplifier and compressor whose inlet is connected to internal volume of hermetically sealed chamber and outlet is connected through two channels to inlet nozzles of fluid oscillator and fluid amplifier, respectively. First throttle of variable section is positioned within channel for connecting compressor to inlet nozzle of fluid oscillator. Two feedback circuits connected between inlet of fluid oscillator and its outlet channels consist, respectively, of capacitor and throttle connected in series. Device for hermetical connection to acoustic meatus is connected through elastic tubes to mutually inverted outlets of fluid amplifier.

EFFECT: increased efficiency in creating of sinusoid-variable air pressure within acoustic meatus.

4 cl, 1 dwg