Negative pressure wound therapy system for detecting transudate level by photoelectric total reflection

Abstract

The invention discloses a negative pressure wound therapy system for detecting a transudate level by photoelectric total reflection. The system comprises negative pressure wound therapy equipment with a negative source and a controller, a liquid collection bottle which is used for collecting transudate, and at least one detection module; the side wall of the liquid collection bottle is protruded outward to form a protruded part; the included angle theta which is formed between planes of two opposite sides of the protruded part is more than 97.2 degrees and less than 180 degrees; and the detection module comprises a transmitting unit which is positioned on one side of the protruded part and transmits electromagnetic waves or ultrasonic signals to the liquid collection bottle, a receiving unit which is correspondingly positioned on the other side of the protruded part, and receives electromagnetic waves or ultrasonic signals which are reflected by the liquid collecting bottle, and a detection control unit which is used for judging whether transudate exists at the positions of the detection modules according to the condition that the receiving unit receives the electromagnetic waves or ultrasonic signals. The negative pressure wound therapy system can detect the level of wound transudate in the liquid collection bottle to ensure that medical workers and patients can know the transudate amount in the liquid collection bottle timely.

Description

technical field [0001] The invention relates to the technical field of negative pressure wound treatment equipment, in particular to a negative pressure wound treatment system for detecting the liquid level of exudate by photoelectric total reflection. Background technique [0002] Negative pressure wound therapy equipment, called Negative_Pressure_Wound_Therapy_Devices in the United States, referred to as NPWT, its principle is to promote wound healing by applying negative pressure to the wound. According to the clinical experience in the United States in the past 10 years, the device has a good healing effect on various acute and chronic wounds. [0003] Generally, a negative pressure wound therapy system includes a negative pressure wound therapy device, a wound kit, and a container for collecting exudate from the wound (herein, the container is referred to as a liquid collection bottle). Among them, the wound kit is used to seal the wound and create a negative pressure ...

AI Technical Summary

Problems solved by technology

In the use of the negative pressure wound treatment system, it is required that when the wound exudate collected in the liquid collection bottle is full, the exudate must not flow back into the negative pressure wound treatment equipment, and the liquid collection bottle needs to be replaced in time. Generally, medical personnel or The patient directly observes to determine whether the liquid collection bottle is full of liquid, which is inconvenient to use

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