Liquid dressing and production method thereof

Abstract

The invention provides a liquid dressing and a production method thereof, and belongs to the technical field of medical supplies. The liquid dressing is composed of polyvinylpyrrolidone (PVP), carbomer 940 and purified water. Microbial limit requirements are that the total number of aerobic bacteria is less than or equal to 100 cfu / mL, the total number of molds and yeasts is less than or equal to 100 cfu / mL, and staphylococcus aureus and pseudomonas aeruginosa are not detected. The liquid dressing is prepared from, by weight, 0.5-50.00% of the polyvinylpyrrolidone, 0.1-0.50% of the carbomer 940, 0.1-99% of the purified water and an appropriate quantity of a preservative. The technological method comprises the steps that the raw materials are weighed according to a formula ratio, the raw material polyvinylpyrrolidone and preservative are placed in a container filled with the purified water, so that the polyvinylpyrrolidone and the preservative are fully dissolved to prepare a solution; the carbomer 940 raw material is placed in an another container filled with purified water, so that the carbomer 940 raw material fully swells to prepare a hydrogel solution, and then the solution and the hydrogel solution are mixed, stirred uniformly and subpackaged to form the liquid dressing. A protection layer is formed on the surface of a wound, which plays a physical barrier role. The liquid dressing is used for nursing of small wounds, abrasions, incised wounds and other superficial wound surfaces and surrounding skin.

Description

technical field [0001] The invention belongs to the technical field of making medical supplies by using polymer materials polyvinylpyrrolidone (PVP) and carbomer 940 as main raw materials. Background technique [0002] Damage to the superficial skin surface such as skin wounds and wounds is a common phenomenon in people's normal life. Once a wound occurs on the skin, measures must be taken to prevent infection of the wound surface. The degree of contamination of the wound itself has a lot to do with whether infection occurs in the future. Generally speaking, wounds are classified as follows: 1. Clean wounds (Clean-Wounds) --- No inflammation. 2. Clean-contaminated wounds (Clean-Contaminated Wounds) --- No obvious contamination. 3. Contaminated wounds (Contaminated Wounds) --- Acute inflammation, but no suppuration. Traumatic wound with necrotic tissue. 4. Infected wounds (Dirty or Infected Wounds) --- Infected wounds. [0003] The current wound treatment methods generall...

AI Technical Summary

Problems solved by technology

It's bad for wound healing