Silver containing wound dressing
AssigneeConvatec Technologies Inc.
InventorDavid Malcolm Woods
Life of this patent
Estimating the term…
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.
Claims16
A wound dressing having anti-microbial activity, comprising a first fibre and a second fibre, the first fibre is substantially insoluble in water having silver (I) cations bonded thereto and discoloring on exposure to light, and the second fibre is substantially free from silver, wherein the wound dressing consists of a uniform blend of the first fibre and a second fibre, said wound dressing comprising from 0.01 to 5.0 percent by weight of silver (I) cations based on the total weight of first and second fibres, whereby the 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 the same average amount of silver cations present as is present in the blend.
Dependencies are inferred from the claim text.