Inventors:
Richard M. Simonson - New York NY, US
Theodore McAllister - San Antonio TX, US
Richard R. Suchanec - Newark DE, US
Daniel A. White - La Grange TX, US
Assignee:
General Wound Kare, Inc. - New York NY
International Classification:
A61K 9/70, A61K 31/44, A61K 31/47, A61K 31/135, A41D 19/00, A61F 13/02
US Classification:
424443, 514283, 514297, 514310, 514649, 427 23, 427 231
Abstract:
A germicidal absorptive material for use in surgical packings, wound bandages, sanitary tampons and bed sore prevention and/or treatment uses is provided by a foam-like matrix of hydrophilic polyurethane polymer to which application-specific loads of a germicidal disinfectant dye have been made. Polyurethane polymer of various densities and thicknesses exhibits an exceptional ability to absorb different levels of a number of disinfectant dyes, both basic and acidic, such as gentian violet and methylene blue, respectively. The relationship between dye-load and application-specific uses permits a totally-bound gentian violet pad to be used as a conventional bandage or pad on a surface wound with the capability of preventing the incursion of external pathogens from entering the wound through the pad, where the pathogens are killed by the bound-dye. The wound exudate is absorbed safely by the pad, where wound-originating pathogens are also killed. When the loaded dye's concentration is saturated by exceeding the bound-dye limit, the limited free-dye is available to be delivered to the wound, particularly deep wounds, to rapidly kill pathogens in the wound.