Multifunctional transdermal dressing for wounds
AssigneeMaterials Modification, Inc.
InventorsKRISHNASWAMY KASTHURI RANGAN, TIRUMALAI SRINIVAS SUDARSHAN
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Abstract
A multifunctional polymer-free clay products having a clay, a zwitterion, a silver compound, and, an analgesic. The multifunctional polymer-free clay product provides antimicrobial and pain relieving properties. Method of treatment of burns using the multifunctional polymer-free clay product having antimicrobial and pain relieving properties. Methods of preparing multifunctional polymer-free clay products having a clay, a zwitterion, a silver compound, and, an analgesic.
Claims30
A multifunctional polymer-free clay product comprising a clay, a zwitterion, an antimicrobial agent, and, an analgesic, and wherein the multifunctional polymer-free clay product provides antimicrobial and pain relieving properties.
A method of preparing a multifunctional polymer-free clay product comprising an antimicrobial agent and an analgesic, the method comprising:
- a) mixing a clay, the antimicrobial agent and water to form a first slurry;
- b) washing the slurry of step a) with water to obtain a washed second slurry;
- c) adding a zwitterion and water to the washed second slurry of step b) to obtain a third clay slurry;
- d) casting the third clay slurry of step c) onto a substrate to obtain a first dried product;
- e) adding drops of the analgesic in a non-aqueous solvent onto the first dried product of step d) to obtain a resultant product,
- f) drying the resultant product to obtain a second dried product;
- g) separating the second dried product of step f) from the substrate of step d);
- wherein the second dried product of steps f) and g) is the multifunctional polymer-free clay product which provides both antimicrobial and pain relieving properties, and wherein the antimicrobial agent in the multifunctional polymer-free clay product is selected from the group consisting of silver ion, copper, silver-containing compounds, and, copper containing compounds.
A method of preparing a multifunctional polymer-free organo modified clay product comprising an antimicrobial agent and an analgesic, the method comprising:
- a) mixing a clay, the antimicrobial agent and water to form a first slurry;
- b) washing the first slurry of step a) with water to obtain a washed second slurry;
- c) adding a mixture of water and non-aqueous solvent containing betaine and an analgesic to the washed second slurry of step b) to obtain a third clay slurry;
- d) casting the third clay slurry of step c) onto a substrate to obtain a dried product;
- e) separating the dried product of step d) from the substrate to obtain a separated dried product, wherein the separated dried product is the multifunctional polymer-free clay product, wherein the multifunctional polymer-free clay product provides antimicrobial and pain relieving properties, and wherein the antimicrobial agent is selected from the group consisting of silver ion, copper, silver-containing compounds, and, copper containing compounds.
A multifunctional antimicrobial and analgesic dressing comprising a backing film and a multifunctional polymer-free clay product, wherein the multifunctional polymer-free clay product comprises a clay, a zwitterion, an antimicrobial agent, and, an analgesic, whereby the multifunctional polymer-free clay product provides antimicrobial and pain relieving properties, and the backing film is a polymeric film impermeable to liquid water.
A multifunctional antimicrobial and analgesic dressing comprising a backing film and more than one multifunctional polymer-free clay product, wherein each of the multifunctional clay product in the more than one multifunctional polymer-free clay product comprises a clay, a zwitterion, an antimicrobial agent, and, an analgesic,
- wherein the multifunctional antimicrobial and analgesic dressing provides antimicrobial and pain relieving properties, wherein the backing film is a polymeric film impermeable to liquid water.
Dependencies are inferred from the claim text.