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

Abstract

A negative-pressure wound therapy system for detecting an exudate level through photoelectronic total internal reflection comprises: a negative-pressure wound therapy device (8) having a negative-pressure source (6) and a controller (7); a liquid collection bottle (5) used for collecting exudate, the sidewall of the liquid collection bottle (5) being convex outwardly to form a protrusion, the angle ¸ formed between the planes of two opposite sides (5a, 5b) of the protrusion meeting: 97.2 degrees < ¸ < 180 degrees; at least one detection module (9), comprising: a transmission unit (91), located at the side (5a) of the protrusion, and used for transmitting an electromagnetic wave or ultrasonic wave signal to the liquid collection bottle (5); a receiving unit (92), correspondingly located at the other side (5b) of the protrusion, and used for receiving an electromagnetic wave or ultrasonic wave signal refracted by the liquid collection bottle (5); a detection control unit, used for determining whether exudate is present at the position of the detection module (9) according to whether the receiving unit (92) receives the electromagnetic wave or ultrasonic wave signal. The system is capable of detecting the level height of wound exudate in a liquid collection bottle accurately and conveniently, so that a health worker and a patient can learn in time the amount of exudate in the liquid collection bottle.

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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