Pneumatic percussor

Details Pneumatic percussor Pneumatic percussor

A - Human Necessities

61

H

121/62, 128/8

A61H 1/00 (2006.01) A61H 23/04 (2006.01)

Patent

CA 1212288

- 1 - Abstract: A pneumatic percussor includes a three-way valve that is gated on by a control circuit to gate compressed air from a compressor to a percussor cup. The percussor cup is resilient bellows that is expandable in response to pressurized air that is gated through the three-way valve. A variable orifice regulates the air flow to the percussor cup. A check valve is connected in parallel with the variable orifice to exhaust air to the atmosphere. The control circuit gates the three-way valve on for a short duration during which the percussor cup is inflated and when the control circuit gates the three-way valve off, the check valve relieves the pressure from the inside of the percussor cup to deflate it. The expansion and contraction of the percussor cup delivers a therapeutic rhythmic action to the portion of the body external to the thoracic cavity thereby stimulating the expectoration of the mucus from the lungs.

435996

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