FIELD: medicine.
SUBSTANCE: system includes soft porous pad, air-tight bandage material fastened over the soft pad so as to maintain air-tight sealing of wound cavity. Proximal end of tube is connected to bandage material. Peripheral end of tube is connected to negative pressure source. Filtering absorption box is positioned along the tube to catch exudates suctioned from wound cavity. First hydrophobic filter is positioned at the orifice of filtering absorption box to detect whether the filtering absorption box is filled. Second hydrophobic filter is positioned between first filter and negative pressure source. Smell filter is positioned between hydrophobic filters. Fastener attaches housing to stationary object. Automatic pressure oscillation device is provided for additional stimulation of open wound healing, longer lifetime of accumulator and mobility of patient.
EFFECT: medium for pumping excitation frequency change and medium for portable electric power source control.
58 cl, 5 dwg
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