Wound dressing
US4561435A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1984 |
| Grant date | Dec 31, 1985 |
| Priority date | — |
| Expiry date | Apr 4, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/00561
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
There is disclosed a bandage which permits drying of a wound or the wound exudate and yet which provides a barrier to bacteria, said bandage comprising an absorbent pad, a barrier film positioned over the surface of said pad, said barrier film being gas permeable and yet substantially impermeable to bacteria, an adhesive coated film or fabric positioned over and around the periphery of the pad and barrier film, said adhesive coated film or fabric being bonded to the periphery of the barrier film thus creating an open window in the center portion of the adhesive film, the adhesive coated film or fabric extending beyond the perimeter of the barrier film and said pad such that when the bandage is applied to the skin of a patient, the portion of the adhesive coated film or fabric extending beyond the perimeter of the pad and barrier film will contact the skin of the patient and form a means of attachment to the skin, the adhesive coated film or fabric and barrier film together forming a bacteria impermeable barrier. This bandage may also include a slit perforated, gas permeable, elastic film as the wound interface in order to ensure that the bandage can be removed without disrupting th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.