Preparation method of bioactive medical dressing

Abstract

The invention discloses a preparation method of a bioactive medical dressing. The method comprises the following steps of S1, taking raw material solutions for later use, and performing printing through a microfluidic 3D printing assembly; and S2, introducing contents into all channels in a multi-channel coaxial jet head, controlling the flow speed, setting parameters of a 3D printer, and using the 3D printer to control a micro-fluidic chip to print the three-dimensional diabetic foot ulcer functional medical dressing, wherein the raw material solutions comprise an alginate solution, a first high-molecular polymer solution, a bioactive component solution and a second high-molecular polymer solution. According to the method, the process is simple, subsequent treatment of the dressing is not needed, the production efficiency is high, the cost is low, the product is stable, the precision is high, and the experimental repeatability is high.

Description

technical field

[0001] The invention belongs to the field of medical devices, and in particular relates to a preparation method of a bioactive medical dressing. Background technique

[0002] The skin is an important organ of the human body. It has very important physical, chemical and biological barrier functions. It plays a role in preventing the loss of water and electrolytes and other substances, as well as immune and sensing functions. It plays a role in maintaining the stability of the internal environment and preventing microbial invasion. very important role. Skin damage caused by trauma, burns, and skin ulcers will cause a series of problems in the body, such as bacterial infection, increased metabolism, excessive loss of water and protein, endocrine and immune system dysfunction, etc., which may be life-threatening in severe cases. Therefore, after skin injury, it is usually necessary to use a skin substitute medical dressing to protect the wound, prevent wound inf...

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