Infusion alarm

Abstract

An infusion alarm is disclosed, comprising a power supply, a probe, an electric magnet, a spring, an armature, a contact block and an electric bell, the power supply, the probe and the electric magnet are interconnected in series via a lead wire to form a circuit I, the power supply, the spring, the armature, the contact block and the electric bell are interconnected in series via the lead wire to form a circuit II. As the above structure is used, when used, the probe is inserted into the liquid in an infusion bottle to switch on the circuit I, the current generated by the electric magnet moves the armature in the circuit II away from the contact block so that the circuit II can be switched off, and when no liquid is present in the infusion bottle, the circuit I is switched off, the armature in the circuit II is connected with the contact block under the action of the spring to switch on the circuit II, and the electric bell makes warning sound to notice patient of the ending of the infusion, thus achieving the purpose of guaranteeing safety of the infusion.

Description

technical field [0001] The invention relates to an improvement of an alarm, in particular to an infusion alarm. Background technique [0002] Now patients often rely on manual observation to see whether the infusion is completed during infusion. If the patient falls asleep or does not pay attention during infusion, it will easily cause infusion danger. Contents of the invention [0003] The purpose of the present invention is to provide a kind of transfusion alarm that guarantees transfusion safety. [0004] The object of the present invention is achieved like this: a kind of transfusion alarm comprises power supply, probe, electromagnet, spring, armature, contact block and electric bell, and power supply and probe, electromagnet form circuit I by wire series connection, power supply and spring, The armature, the contact block and the electric bell are connected in series through wires to form the loop II. [0005] Due to the adoption of the above structure, the probe is...

AI Technical Summary

Problems solved by technology

[0002] At present, patients often rely on manual observation to see whether the infusion is completed. If the patient falls asleep or does not pay attention during the infusion, it is easy to cause the danger of infusion.

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