Method for preparing bacterium insulation polylactic acid superfine nanofiber wound dressing

• Main Authors: AO FEN, ZHANG YUE, NING YUANLAN, YANG RONGRONG, SHEN WEN
• Format: Patent
• Language: Chinese; English
• Published: 30.07.2019
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; HUMAN NECESSITIES; HYGIENE; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; TEXTILES

The invention discloses a method for preparing a bacterium insulation polylactic acid superfine nanofiber wound dressing. The method specifically comprises the following steps: 1, dissolving polylactic acid with chloroform and dimethyl sulfoxide as solvents, and preparing a solution of which the polylactic acid concentration is as shown in the specification; 2, putting the polylactic acid solutioninto an electrostatic spinning device, and preparing a polylactic acid superfine fiber by using a jet flow method, that is, the bacterium insulation polylactic acid superfine nanofiber wound dressing. The fiber aperture of the bacterium insulation polylactic acid superfine nanofiber wound dressing prepared by using the method disclosed by the invention is smaller than the diameter of a bacterium,and the functions of bacterium insulation and infection prevention can be effectively achieved; in addition, because of porous small gaps in the polylactic acid superfine fiber, hemostasis can be promoted, because of a high s