Patent ID: 6984214
Filing Date: 2006-01-10
Classification: A61H,A61M,A63B

Abstract:
1. A device for thinning lung secretions, comprising: a housing encompassing an air mass flowing through said housing when a patient blows air into said housing; a reed disposed in said housing, said reed producing low-frequency sound in a range of about 12 Hz to about 30 Hz when vibrated by the air mass flowing through said housing over a surface of and past the reed; and an acoustical resistance that couples the air mass in said housing to an air mass in a lung cavity of the patient to create a virtual air cavity comprising a virtual air mass that is larger than the air mass in said housing, the virtual air cavity assisting said reed to produce the low-frequency sound, wherein the low-frequency sound vibrates the air mass in the virtual air cavity, thereby vibrating the patient's lung cavity to thin lung secretions.