FIRST WATER LIMITED Patent applications |
Patent application number | Title | Published |
20150267042 | HYDROGEL COMPOSITES - Disclosed herein is a hydrogel/fibre composite structure producible by a method comprising: partially impregnating fibres of a water-swellable fibrous material with an aqueous hydrogel precursor solution comprising at least one polymerisable, and optionally crosslinkable, monomer such that at least partial swelling of the impregnated fibres takes place, and polymerising, and optionally crosslinking, the at least one monomer after impregnation of the fibres and at least partial swelling of the fibres to form the hydrogel within the impregnated fibres of the fibrous material, such that the integrity of the fibrous material is at least partially preserved in the resulting hydrogel/fibre composite. A method of producing the hydrogel/fibre composite structure and a biomedical product comprising the hydrogel/fibre composite structure are also disclosed herein. | 09-24-2015 |
20140249496 | COMPOSITIONS FOR USE AS OR IN WOUND DRESSINGS - The present invention provides a composition for the treatment of a wound, the composition comprising:
| 09-04-2014 |
20140235727 | ANTIMICROBIAL HYDROGEL POLYMERS - The present invention relates generally to antimicrobial hydrogel polymers, and dressings comprising one or more hydrogel-forming hydrophilic polymers, where the hydrogels and dressings further comprise one or more antimicrobial agents that are released from the hydrogel in a controlled manner. The hydrogels and dressings may be used for medical, veterinary, and/or cosmetic applications. The dressings may be applied, for example, as wound dressings, surgical dressings, and percutaneous site dressings. In certain aspects of the invention, the dressings may be beneficially used in methods of accelerating wound healing, preventing and/or reducing the incidence of wound infection, and reducing scarring associated with wounds. | 08-21-2014 |
20130251665 | TREATMENT OF CHRONIC ULCEROUS SKIN LESIONS - The invention provides a method of treating a wound (for example, a chronic ulcerous skin lesion) in a human or non-human mammal (particularly a human). The wound is contacted with a topical hydrogel composition comprising a hydrophilic polymer carrying multiple pendant sulphonyl groups, optionally with multiple pendant carboxylic groups, on each polymer molecule. | 09-26-2013 |
20130121952 | HYDROGEL CO-POLYMER COMPOSITION AND ITS USES, FOR EXAMPLE AS A WOUND DRESSING - The present invention provides a hydrogel composition, preferably for the treatment of wounds, comprising a hydrophilic co-polymer carrying multiple pendant anionic groups, wherein the polymer is derived from a first monomer and a second monomer, wherein both monomers have an octanol:water partition coefficient Log P value of less than 0, and, the Log P value of the first monomer is greater (more positive) than the second monomer. The difference between the Log P value for the two monomers is preferably less than 2. The weight ratio (w/w) of the first monomer/second monomer in the hydrogel composition is preferably equal to or more than about 1. The pendant anionic groups may be sulphonyl groups, e.g. sulphonic acid groups or salts thereof. The anionic group in both first and second monomers may be in salt form and the counterion for both monomers is preferably the same. | 05-16-2013 |
20120116279 | MULTILAYER COMPOSITIONS AND DRESSINGS - The invention provides a layered composition comprising: a first layer comprising a first material, wherein the first material comprises a gel material; a second layer comprising a second material, wherein the second material is harder is than the first material; and a third layer comprising a third material, wherein the third material has a lower tensile modulus than the second material, wherein the second layer is disposed between the first and third layers. The composition may be used in a wound dressing, in which preferably the first layer is in fluid flow communication with the wound. | 05-10-2012 |
20120114591 | TREATMENT OF CHRONIC ULCEROUS SKIN LESIONS - The invention provides a method of treating a wound (for example, a chronic ulcerous skin lesion) in a human or non-human mammal (particularly a human). The wound is contacted with a topical hydrogel composition comprising a hydrophilic polymer carrying multiple pendant sulphonyl groups, optionally with multiple pendant carboxylic groups, on each polymer molecule. | 05-10-2012 |
20110190722 | COMPOSITIONS FOR USE AS OR IN WOUND DRESSINGS - The present invention provides a composition for the treatment of a wound, the composition comprising: a first layer, which comprises a porous, optionally hydrophilic material capable of absorbing fluid from the wound at least in part by capilliary action, a second layer comprising an absorbent hydrogel, the first layer being associated with the second layer, wherein, in the treatment, the first layer is disposed closer to the wound than the second layer and the composition modulates the concentration of dissolved ions in the fluid in the wound. The present invention further provides uses of the composition and methods of making the composition. | 08-04-2011 |
20110135726 | HYDROGEL COMPOSITES AND WOUND DRESSINGS - The present invention provides an absorbent hydrogel composite for use in the manufacture of an article for application to a fluid-emitting surface, e.g. a wound, the composite having a laminar structure comprising first and second layers, the first layer being a surface contacting layer comprising a porous net structure having a surface contacting face and an outwardly directed face, the second layer comprising a low-crosslinked absorbent hydrogel disposed over the outwardly directed face of the first layer and arranged so that in use it is in fluid flow communication with the surface through apertures of the net structure. | 06-09-2011 |
20110045056 | HYDROGEL CO-POLYMER COMPOSITION AND ITS USES, FOR EXAMPLE AS A WOUND DRESSING - The present invention provides a hydrogel composition, preferably for the treatment of wounds, comprising a hydrophilic co-polymer carrying multiple pendant anionic groups, wherein the polymer is derived from a first monomer and a second monomer, wherein both monomers have an octanohwater partition coefficient Log P value of less than 0, and, the Log P value of the first monomer is greater (more positive) than the second monomer. Preferably the difference between the Log P value for the two monomers is at least 0.1, preferably at least 0.2. The difference between the Log P value for the two monomers is preferably less than 2. The weight ratio (w/w) of the first monomer/second monomer in the hydrogel composition is preferably equal to or more than about 1. The pendant anionic groups may be sulphonyl groups, e.g. sulphonic acid groups or salts thereof. The anionic group in both first and second monomers may be in salt form and the counterion for both monomers is preferably the same. | 02-24-2011 |