Soft-material high-polymer precision filter used for infusion and manufacturing method thereof

Abstract

The invention provides a soft-material high-polymer precision filter used for infusion and a manufacturing method thereof. The soft-material high-polymer precision filter used for the infusion comprises a filter bag prepared from a light film material, and a precision filter screen is arranged in the filter bag so as to form a filter cavity and a drainage cavity; an input connector and a drug adding connector are arranged at the upper end of the filter bag, wherein the input connector and the drug adding connector are both communicated with the drainage cavity; an output connector is arranged at the lower end of the filter bag, wherein the output connector is communicated with the drainage cavity; and an exhaust device is further arranged on the filter bag. The soft-material high-polymer precision filter used for the infusion is low in cost, safe in filtration, and convenient to use; moreover, the soft-material high-polymer precision filter is also suitable for midway adding of drugs.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of medical devices, in particular to a soft polymer precision filter for infusion. [0003] 【Background technique】 [0004] At present, infusion therapy, as an important means of replenishing body fluids and an effective measure to provide various nutrients in the body, is a necessary means of clinical treatment. But for many years, in clinical treatment, transfusion has been facing potential dangers, that is, blood pollution, and insoluble particles in veins seriously endanger human health. [0005] During the infusion process using an ordinary filtered infusion set, the insoluble particles in the drug enter the human body during the infusion. When the insoluble particles reach a certain amount, it is easy to induce cardiovascular and cerebrovascular diseases and pulmonary embolism. In mild cases, it may cause blood Circulatory disorder, severe cases lead to organ necrosis, serious life-threatening...

AI Technical Summary

Problems solved by technology

However, it can only filter insoluble particles above 15 microns, and cannot filter particles below 15 microns.

In recent years, filters that can filter insoluble particles above 5 microns have appeared on the market, but due to the problem of product structure, it is easy to generate accumulated air bubbles during use. There is a risk of entering the infusion line, so the risk of air entering the blood circulation is greatly increased, causing a safety hazard

Moreover, the existing medical infusion tube filter is made of transparent plastic shell, which not only has high cost and complicated manufacturing process, but also cannot be mass-produced, and is assembled manually, resulting in low production efficiency and yield rate.

Images