Wound dressing having a contoured adhesive layer

Details Wound dressing having a contoured adhesive layer Wound dressing having a contoured adhesive layer

1995-08-14

1997-01-07

Phelan, D. Gabrielle

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Web, sheet or filament bases; compositions of bandages; or...

424445, 424446, 424447, 424448, 604332, 604333, 604341, A61F 1300

Patent

active

055914470

ABSTRACT:
An improved wound dressing having an adhesive layer (26, 426) containing one or more hydrocolloids dispersed in a viscous elastomer, a flexible water-impervious backing layer (22, 322, 422) on one side of the adhesive layer, and a removable release layer (28, 328, 428) on the adhesive layer's opposite side. The dressing includes a body portion (36) with a stair-like outer contour merging with a peripheral flange (38, 238, 338, 438) of reduced thickness. The flange (38, 238, 338, 438) is required to have a width of at least 5 mm. and the thickness of the adhesive layer of that flange is no greater than 0.5 mm., for purposes of overcoming prior problems of adhesive flow, fluid channeling, leakage, and unintentional detachment.

REFERENCES:
patent: 3339546 (1967-09-01), Chen
patent: 4725272 (1988-02-01), Gale
patent: 4830856 (1989-05-01), Peppers
patent: 4867748 (1989-09-01), Samuelsen

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