| 摘要 |
<p>A confined area of skin, not exceeding about 1-1/2 sq. inches, is treated by exposing it to an aqueous jet pulsating at between 2200 and 3200 cycles per minute and being incident on the skin at a velocity of between 9' /sec. and 18' /sec. The massage device includes a hollow handle containing a reservoir and housing a piston pump and a drive motor. A tubular cylindrical shield extends radially from the top of the handle and has an open distal end and supports an axial nozzle at its proximate end which communicates by a passageway in the handle member to the pump cylinder and an adjustable by-pass valve connecting the passageway to the reservoir. The pump cylinder communicates with the reservoir bottom through a check valve, and the rear of the shield communicates by a drain pipe with the top of the reservoir.</p> |
