Inventors:
Robert C. Denton - Livermore CA
Marvin H. Primack - Stockton CA
Assignee:
Hamburg Group - Stockton CA
International Classification:
A61H 2300
Abstract:
A percussion vibrator apparatus for treating patients having obstructive pulmonary disorders has a reciprocating member provided with a pad of foam rubber or the like having a 25% compression deflection of from about 5 psi to about 12 psi and a 60% compression deflection of from about 40 psi to about 80 psi. Reciprocating motion is imparted to the member supporting the pad at a high frequency of about 3200 to about 8500 strokes per minute by a drive system comprising a flexible shaft driven by an electric motor and a cam arrangement driven by the flexible shaft and coupled to the pad supporting member. The amplitude of the vibrator is set between 0. 0625 and 0. 1875 inch for best results.