Making process of medical fiber

Abstract

The production method of medical fibre uses beta-hydroxybutyric acid and beta-hydroxyvaleric acid as raw material, and adopts the following steps: drying, melting, extruding, conveying, metering and spraying, cooling, solidifying and forming, drawing and setting to obtain the invented finished product. Said invented medical fibre possesses long degradation time, can be used for making operative suture and medical auxiliary material for curing wound hard to healing.

Description

technical field

[0001] The invention relates to a method for manufacturing biomaterial fibers, in particular to a method for manufacturing medical fibers that can be absorbed by the human body. Background technique

[0002] At present, the medical fibers used to make surgical sutures and medical accessories mostly use glycolide-lactide copolymers or chitin as raw materials, and are made by wet and dry methods. The fiber made of this raw material has a large drop in wet strength and a short degradation time. Generally, its strength drops by about 50% in one week. And in the operation, the healing time of different operation parts is different, and in the position that takes a long time to heal, the surgical sutures and medical auxiliary materials that existing medical fibers are made are just not applicable. Because it takes a long time to recover, the fiber degrades too fast, which is not good for wound healing. Contents of the invention

[0003] The purpose of the prese...