Silver containing wound dressing
AssigneeConvatec Technologies Inc.
InventorDavid Malcolm Woods
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Abstract
A wound dressing having anti-microbial activity comprises a first fiber capable of bonding with silver (1) cations. The wound dressing comprises a blend of the first fiber to which silver (1) cations are bonded and a second fiber which is substantially free from silver. The wound dressing comprises from 0.01 to 5.0 percent by weight of silver (1) cations, based on the weight of fiber.
Claims17
A wound dressing having anti-microbial activity comprising a first fibre and a second fibre, the first fibre being a gel-forming fibre and having silver (I) cations bonded thereto and discoloring on exposure to light, and the second fibre being substantially free from silver, wherein the wound dressing consists of a uniform blend of the first fibre and the second fibre, the wound dressing comprises from 0.01 to 5.0 percent by weight of silver (I) cations based on a total weight of first and second fibres, and whereby a discoloration of the blend on exposure to light is lessened compared with the discoloration on exposure to light of a batch of the first fibre having a same average amount of silver (I) cations present as is present in the blend.
Dependencies are inferred from the claim text.