Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Web – sheet or filament bases; compositions of bandages; or...
Reexamination Certificate
2011-08-09
2011-08-09
Henley, III, Raymond (Department: 1629)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Web, sheet or filament bases; compositions of bandages; or...
C514S283000, C514S297000, C514S310000, C514S649000, C427S002300, C427S002310
Reexamination Certificate
active
07993670
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. The free dye delivery pad can then be replaced by the bound-dye pad to absorb the wound exudate.
REFERENCES:
patent: 3635652 (1972-01-01), Streck
patent: 3961629 (1976-06-01), Richter et al.
patent: 3978855 (1976-09-01), McRae et al.
patent: 4045238 (1977-08-01), Battista et al.
patent: 4541426 (1985-09-01), Webster
patent: 5811471 (1998-09-01), Shanbrom
patent: 5973221 (1999-10-01), Collyer et al.
patent: 6361786 (2002-03-01), Shanbrom
patent: 7030203 (2006-04-01), Mosbey et al.
patent: 2003/0149106 (2003-08-01), Mosbey et al.
patent: A1-0 106 439 (1984-04-01), None
patent: A-0 181 184 (1986-05-01), None
patent: A2-0 256 893 (1988-02-01), None
patent: A1-0 541 390 (1993-05-01), None
patent: A-1 450 201 (1976-09-01), None
patent: WO91/01706 (1991-02-01), None
patent: WO 01/60423 (2001-08-01), None
patent: WO 03/002163 (2003-01-01), None
Drug Facts and Comparisons, 1994 edition, Wolters Kluwer Co. p. 2478.
McAllister Theodore
Simonson Richard M.
Suchanec Richard R.
White Daniel A.
General Wound Kare, Inc.
Henley III Raymond
Holt William H.
LandOfFree
Medical pad, and method for making and using does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Medical pad, and method for making and using, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Medical pad, and method for making and using will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2762994