Percussor

Details Percussor Percussor

1980-11-17

1983-11-22

Apley, Richard J.

Surgery

Truss

Perineal

A61H 700

Patent

active

044162707

ABSTRACT:
An improved percussor comprises an oscillating assembly having a reciprocating plunger, a first and second chamber and a gas tight seal therebetween when the plunger is at rest in a biased position, and gas inlet means for directing gas into the first chamber to begin to force the plunger downwardly against the biasing force, thereby unseating the gas seal between the chambers. The gas pressurizes the second chamber to force the plunger to a second position and the pressure is then relieved through a gas exit passageway. In response to the pressure drop, the plunger is returned to its original position. This plunger reciprocation is repeated rapidly to achieve the percussor action. In a preferred embodiment, a fluid containing chamber having exteriorly exposed fluid impermeable membrane engages the reciprocating plunger whereby the energy is directed through the liquid and membrane.

REFERENCES:
patent: 1780876 (1930-11-01), Grosse
patent: 2052098 (1925-08-01), Lockett
patent: 2646039 (1953-07-01), Agosti
patent: 3396721 (1968-08-01), Mencacci
patent: 3720204 (1973-03-01), Wojtowicz

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