Medical intravenous infusion alarm

Abstract

The invention provides a medical intravenous infusion alarm. The medical intravenous infusion alarm comprises a detecting device and an alarming device. The medical intravenous infusion alarm is characterized in that the detecting device consists of an infrared emission tube and a photosensitive receiving tube; the alarming device comprises a microcontroller which is connected with an infrared tube, a light alarming circuit, a vibration alarming circuit and / or a voice alarming circuit. The detection method comprises the following steps of a) collecting voltage; b) determining reference voltage; c) determining threshold voltage; d) collecting voltage on real time; e) performing median filter; f) determining whether to reach the threshold voltage; g) changing the reference voltage; and h) emitting an alarming signal. According to the alarm and the detection method, the real-time reference voltage is utilized to avoid the influence of an infusion tube and static drops; the median filter method is carried out to remove the interference from bubble; the dynamic threshold voltage is utilized and prevents the influence of environmental change on threshold; whether the infusion tube is empty can be effectively detected.

Description

technical field [0001] The invention relates to a medical venous transfusion alarm, more specifically, to a medical venous transfusion alarm which uses a median filter method to collect voltage and adopts a real-time dynamic threshold voltage. Background technique [0002] Intravenous infusion is a widely used operation item in modern medical activities. Usually, patients or accompanying personnel are required to assist nurses to continuously observe the progress of infusion during infusion. Due to the long infusion time, the patient or the accompanying staff will inevitably be negligent, and cannot find in time that the liquid in the infusion bottle has been emptied, resulting in venous return of blood, causing unnecessary loss and pain, and even threatening the life of the patient. If an alarm signal can be sent out when the infusion is completed, the patient or accompanying person can be promptly prompted to block the infusion set, stop the infusion process, and notify th...

AI Technical Summary

Problems solved by technology

For example, in the scheme described in the utility model (Patent No. CN 201572367) whose patent name is "infrared infusion alarm", the calibration alarm threshold is fixed, which is not universal for different infusion tubes or infusion liquids; the patent name is "one In the scheme described in the utility model (Patent No. CN 202777298) of "An Infusion Alarm", the detection method and the implementation scheme of each module are mainly described, and the specific implementation method is not clarified.

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