Continuous antibacterial hydrocolloid dressing and preparing method thereof

Abstract

The invention belongs to the field of medical dressings, and particularly relates to a continuous antibacterial hydrocolloid dressing and a preparing method thereof. The dressing is composed of a backlining layer, a functional layer dressing core and an isolation layer in sequence from bottom to top. The functional layer dressing core is prepared from, by weight, 15-20 parts of styrene-isoprene-styrene segmented copolymer (SIS), 15-20 parts of viscosity increasing resin, 10-15 parts of plasticizer, 10-15 parts of antioxidant and 30-50 parts of silver-loaded alginate microspheres. The continuous antibacterial hydrocolloid dressing has strong liquid absorption and humidity maintaining performance and has excellent continuous antibacterial performance, nanosilver contained in the hydrophilicsilver-loaded alginate microspheres in hydrocolloid is slowly released out of the silver-loaded alginate microspheres during liquid absorption swelling of alginate after the silver-loaded alginate microspheres make contact with blood or percolate, and the continuous antibacterial aim is achieved.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to the field of medical biopolymer materials, and specifically relates to a sustained antibacterial hydrocolloid and a preparation method thereof. Background technique [0002] Hydrocolloid dressing is a medical dressing prepared by blending hydrophilic polymer particles with hot-melt pressure-sensitive adhesive. This medical dressing combines the adhesive properties of rubber materials and the water absorption properties of hydrophilic polymer materials. The hydrophilic particles uniformly dispersed in the hydrocolloid dressing swell after absorbing liquid, providing a moist and airtight environment for the wound, promoting Wound healing, a moist environment plays a very good role in promoting wound healing. [0003] However, traditional hydrocolloid dressings have no antibacterial properties, and are often unsatisfactory when dealing with chronic wounds with potential infection ris...

AI Technical Summary

Problems solved by technology

[0003] However, traditional hydrocolloid dressings have no antibacterial properties, and the effect is often unsatisfactory when dealing with chronic wounds with potential infection risks or mild infections

Some hydrocolloid dressings will add antibacterial agents, but there is a shortcoming of sudden release of antibacterial agents, the antibacterial effect only exists in the early stage of dressing application, and the purpose of lasting antibacterial cannot be achieved

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