Wound treatment-dressing and method of manufacture

a wound treatment and wound technology, applied in the field of wound dressings, to achieve the effect of cleaning the wound and superior results

Inactive Publication Date: 2007-07-12
SVETLIK HARVEY E
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0024] Due at least in part to an improved method of manufacture, the pad of the invention functions to protect against and to

Problems solved by technology

However a number of problems arise in connection with the provision of satisfactory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The preferred antimicrobial polyurethane cellular foam products of the invention are composed of TDI (toluene diisocyanate), pure or polymeric MDI (methylene diisocyanate), TDI / MDI prepolymers, an aqueous component with pure or blended polyols or other foaming agents, and a controlled release antimicrobial agent. The resulting cellular hydrophilic foam products can be used wherever medical wound dressings are required. These products include cosmetic pads, puffs, applicators, foam gauzes, bandages, wipes or any other application requiring the use of cosmetic and medical foam products.

[0027] As discussed in the Background portion of the application, various open-cell-structure polymer “foam” membranes are known in the prior art. In many of these prior art products, antimicrobial solutions have been worked into the foam matrix, as by dipping, followed by air drying. Such air-drying deposits small crystals of the antimicrobials onto the surface of the polymer foam's cell wall-s...

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PUM

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Abstract

A wound treatment-dressing is shown which includes a dressing body formed from a medically inert, moisture permeable, urethane open-cell foam which is hydrophilic in nature. The foam body has a foam matrix of interconnected foam cells with cell walls which have incorporated therein a combination of inorganic antimicrobials as active agents, the active agents being incorporated into the foam matrix both topically on a foam cell surface and integrally within the foam cell wall. The antimicrobials are manufactured in a selected particle size range which improves predictability and performance of the wound dressing.

Description

CROSS-REFERENCE TO RELATED APPLICATION [0001] The present application claims priority from earlier filed provisional application Ser. No. 60 / 757,170, filed Jan. 6, 2006, entitled “Wound Treatment-Dressing and Method of Manufacture,” by Harvey E. Svetlik.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates generally to wound dressings such as are useful in treatment of exuding wounds both in first aid as well as longer term treatment situations, particularly where the dressing imparts antimicrobial activity and better than normal accelerated healing to the wound site. [0004] 2. Description of the Prior Art [0005] Flexible cellular polyurethane foams are well known and widely used in a variety of industries. These uses range from such things as furniture cushioning and carpet underlayment to cosmetic pads and applicators. Cellular urethane foams have traditionally been prepared using TDI (toluene diisocyanate) polyisocyanate components. In ...

Claims

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Application Information

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IPC IPC(8): A61F13/00
CPCA61F13/00042A61F13/00063A61F13/00995A61F13/069A61F2013/00157A61F2013/00936A61F2013/00519A61F2013/0054A61F2013/00634A61F2013/0074A61F2013/0091A61F2013/00161
Inventor SVETLIK, HARVEY E.
Owner SVETLIK HARVEY E
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