Wound dressing
AssigneeT. G. Eakin Limited
InventorThomas George Eakin
Life of this patent
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Abstract
A wound dressing is formed from a covering release layer, a dressing layer, an indicator layer, a transparent or translucent indicator bonding layer and a transparent or translucent outer covering. The indicator layer contains a dye which changes colour on contact with water. When the dressing layer becomes saturated, water permeates the indicator layer and triggers a colour change. The colour change is visible through the indicator bonding layer and outer covering and shows a carer that the dressing needs to be replaced.
Claims25
An occlusion wound dressing comprising:
- (a) a transparent or translucent outer covering;
- (b) a moisture-absorbing dressing layer, wherein the moisture-absorbing dressing layer retains absorbed moisture in the area of a wound over which it is placed, remains impermeable to moisture until the dressing layer becomes saturated, and passes moisture therethrough upon becoming saturated;
- and,
- (c) an indicator layer positioned between the outer covering and the dressing layer,
- wherein the indicator layer changes color on contact with moisture received and passed from the dressing layer after the dressing layer has become saturated to indicate when the dressing layer has become saturated and hence water-permeable.
An wound dressing comprising:
- (a) a transparent or translucent outer covering;
- (b) a moisture-absorbing dressing layer having a body that retains absorbed moisture in the area of a wound over which it is placed, remains impermeable to moisture until becoming saturated and passes moisture therethrough upon becoming saturated;
- and,
- (c) an indicator layer positioned between the outer covering and the dressing layer that changes color on contact with moisture received and passed from the dressing layer after the dressing layer has become saturated to indicate when the dressing layer has become saturated and hence water-permeable.
A method of covering a wound with an occlusion dressing comprising the steps of:
- (a) placing a moisture-absorbing dressing layer over the wound which retains absorbed moisture in the area of the wound, remains impermeable to moisture until becoming saturated and passes moisture therethrough upon becoming saturated;
- (b) coving the dressing with a transparent or translucent outer covering;
- and,
- (c) positioning an indicator layer between the outer covering and the dressing layer that changes color on contact with moisture received and passed from the dressing layer after the dressing layer has become saturated to indicate when the dressing layer has become saturated and hence water-permeable.
Dependencies are inferred from the claim text.