Safety infusion device capable of controlling water outlet by means of magnet block

Abstract

The invention relates to a safety infusion device capable of controlling a water outlet by means of a magnet block. The safety infusion device comprises a liquid display shell, magnet, a floating balland a steel ball; the safety infusion device is characterized in that a connection port is formed in the upper end of the liquid display shell and is externally provided with threads of the connection port; a base and a water outlet pipe are arranged at the lower end of the liquid display shell; the base is internally provided with a magnet inserting hole and an internal channel; a water outlet channel is formed in the middle of a water pipe; an inner cavity water outlet is formed in the middle of the bottom of an inner cavity arranged in the liquid display shell; the water outlet channel iscommunicated with an inner channel and is communicated with the inner cavity through the inner cavity water outlet; a cover is provided with a water inlet pipe, a water inlet channel is formed in themiddle of the water inlet pipe, and the water inlet channel passes through the whole cover; the floating ball is internally provided with a floating ball cavity, and the steel ball is arranged in thefloating ball cavity and is made from a paramagnetic material; the floating ball can float in liquid; when no liquid exists in the inner cavity, the floating ball falls onto the inner cavity water outlet at the lower part of the inner cavity so as to seal the inner cavity water outlet. The steel ball of the safety infusion device is attracted by the magnet and can close the water outlet at the accurate position.

Description

technical field [0001] The invention relates to a medical device, in particular to a safety infusion device which relies on a magnet block to control a water outlet. Background technique [0002] When needing to carry out transfusion in hospital, what generally adopt is disposable transfusion set. The infusion process is generally long, and frequent observation by medical staff is required when the bottle is about to be changed or at the end. If the liquid is not discovered after the liquid is finished, air will enter the human body or blood will flow back, and it will seriously endanger the patient's health. Patient's life safety. [0003] In order to solve the problem of avoiding the injection of air into the human body when the injection is about to be injected, there are various research results, such as the Chinese Patent Publication No. CN2601096, which discloses a piston for dripping, wherein the drip plug is placed in the liquid in the bottle as a whole, And the to...

AI Technical Summary

Problems solved by technology

[0005] Chinese patent announcement number CN101905052B, patent name: "Device for drip infusion fixation and safe infusion water stop, the stopper film of the drip infusion fixer is enough to cover the injection outlet of the drip storage cup to ensure stopper fit, the structure of the device alone Complex, the buoyancy and gravity of its construction are difficult to ensure the full realization of the design function, especially the device cannot prevent blood backflow

[0006] Many types of infusion sets designed by the applicant all adopt the magnetic ring method. If the position of the magnetic ring is not good, the steel ball may be attracted to one side of the magnetic ring, and the effect of blocking the water outlet will be unsatisfactory.

Images