Negative-pressure wound treatment system

Abstract

The invention discloses a negative-pressure wound treatment system and particularly relates to the negative-pressure wound treatment system for pressure monitoring and liquid absorption by arranging two independent pipes. The system comprises a wound dressing (1), a wound cover (2) covering the wound dressing, a wound exudate absorption box (3), a first pipe (4) connecting the wound exudate absorption box (3) with the wound dressing (1), a negative-pressure source (7), a safety vent valve (8), a second pipe (6) connecting the safety vent valve (8) with the wound cover (2), an air pressure transducer (5) on the second pipe (6), a fourth pipe (11) connecting the negative-pressure source (7) with wound exudate absorption box (3) and a controller (12) which is connected with the negative-pressure source (7), safety vent valve (8) and the wound exudate absorption box (3). According to the system, during wound treatment, the actual pressure value at the wound can be measured through the air pressure transducer (5) on the second pipe (6), and air on the outside of the negative-pressure suction system can be transmitted to the wound by the opening and closing of the safety vent valve (8). As an air pressure adjusting-stabilizing device and a center negative-pressure source port can be arranged, the negative-pressure wound treatment system is particularly applicable to medical environments with center negative-pressure sources such as hospitals and care centers and capable of guaranteeing the stability and the safety of wound treatment.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a negative pressure treatment system for treating open deep wounds. Background technique [0002] At present, in the process of trauma treatment, preventing infection, promoting blood circulation in the wound site and accelerating healing have always been the main goals for medical staff to achieve. However, some wounds with excessive wounds, wounds caused by chronic diseases, or wounds that have been severely infected are difficult to heal quickly through traditional debridement treatment. In this type of wound, the local blood circulation is blocked, and there is not enough blood flow to the wound site, resulting in a lack of oxygen and nutrients in the tissues around the wound, and insufficient immunity to resist wound infection caused by microorganisms. It can easily lead to sepsis, damage to the immune system, or prolonged wound healing. These phenomena have become clinical ...

AI Technical Summary

Problems solved by technology

The disadvantages of this design are: First, the tube for vacuuming and measuring the negative pressure at the wound is the same tube. When there is exudate in the tube, or the tube is blocked by high-viscosity exudate , there is a large error between the negative pressure value in the pipeline and the negative pressure value at the wound, and it is difficult to accurately measure the real negative pressure value at the wound; The pressure-negative pressure value and holding time cannot change the pressure according to the real environment of the wound, so the patient is prone to discomfort during the negative pressure suction process; the third is that when the negative pressure wound therapy system is in the process of periodic pressure alternation, The wound exudate that has been absorbed in the pipeline is easy to return to the wound surface, resulting in repeated wound contamination

There are also some technologies that use two pipelines, one of which is for gas suction and the other for wound exudate suction. However, due to the lack of effective isolation of the ports of the two pipelines at the wound, the two pipelines It is difficult to ensure that the gas pipeline and the liquid pipeline can work completely independently

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