Infusion set without orthophthalic matter and with precision filtration function

Abstract

The invention discloses an infusion set without orthophthalic matter and with the precision filtration function. The infusion set comprises an infusion tube, a puncture outfit, a dripping cylinder, a flow regulator, a filter, a Luer taper and an infusion needle, wherein the infusion tube is connected with the puncture outfit, the dripping cylinder, the flow regulator, the filter, the Luer taper and the infusion needle in sequence, a liquid stopping cavity is formed in the filter, a filtering membrane is arranged in the liquid stopping cavity, an exhaust hole is formed in one side wall of the filter, a first catheter which is communicated with the liquid stopping cavity and upwards extends out is arranged on one side of the filter, a second catheter which is communicated with the liquid stopping cavity and downwards extends out is arranged on the other side of the filter, and the height of a liquid outlet of the second catheter is larger than or equal to that of a liquid inlet of the first catheter. According to the infusion set without the orthophthalic matter and with the precision filtration function, air entering into the infusion tube can be effectively removed, flow can be automatically stopped, the phenomenon of blood return is avoided, particles in liquid medicine can be effectively filtered out, and the frequency of the phenomenon of the thrombus caused by the situation that the particles circulate along with blood is reduced; in addition, due to the fact that non-orthophthalic tributyl O-acetylcitrate serves as plasticizer of the infusion tube, the infusion set can be safer to a human body.

Description

technical field [0001] The invention relates to a disposable infusion set, in particular to a disposable infusion set without o-phthalmic plasticizers which can automatically exhaust, automatically stop the liquid and at the same time precisely filter the liquid medicine and has no harm to the human body. equipment field. Background technique [0002] At present, a disposable infusion set is a necessary medical device for clinical infusion, which generally includes a puncture device, an infusion tube, a drip tube, a flow rate regulator, a Luer connector, and an infusion needle from top to bottom. Although the structure of this infusion set is simple, if the infusion needle is not pulled out in time or the bottle is changed in time when the infusion is completed, air will enter the infusion line to form air bubbles, and the air bubbles will cause venous return when the air bubbles enter the patient's body, and even lead to severe medical malpractice. This requires medical s...

AI Technical Summary

Problems solved by technology

[0005] In addition, phthalate plasticizers (DEHP for short) or dioctyl phthalate (DOP for short) in traditional infusion tube manufacturing materials can cause cancer and other hazards to the human body.

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