2 results about "Drainage flow" patented technology

The invention discloses a dual negative pressure adjustable wound negative pressure therapeutic instrument based on a microprocessor core, comprising an internal negative pressure source, an internal negative pressure control unit, an external negative pressure interface, a regulating valve, an external negative pressure control unit, a wound Drainage device, negative pressure detection unit, flow rate and flow rate detection unit and alarm unit; internal negative pressure control unit and external negative pressure control unit respectively control internal negative pressure source and external negative pressure source to generate negative pressure at the wound, wound drainage device The generated lactic acid metabolites are drained, the negative pressure detection unit detects the pressure at the wound, the flow and velocity detection unit detects the drainage volume and drainage speed at the wound, and the detected signal is fed back to the internal negative pressure control unit or external negative pressure control unit , the control unit controls the negative pressure source according to the feedback signal; when the wound causes massive bleeding, the alarm unit sends out an alarm signal. The present invention can use a negative pressure pump or a hospital negative pressure system as a negative pressure source, which can be flexibly selected in practical applications.