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US 12,678,542 B2Granted
Polyethylenimine copolymer compositions and methods to enhance antiviral and antibacterial properties of medical devices and medical tools
OwnerJianliang Gong, Chun Yin Orinventors
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Abstract
The present invention offers compositions and methods of infusing antibacterial and antiviral polyethylenimine compounds into materials conventionally used for medical devices and medical tools, including such materials as vinyl, polyvinylchloride, latex, rubber, silicone and plastic materials, and thereby enhancing the safety and antiviral properties of such medical equipment.
Claims16
An antiviral medical device material, comprising:
- a cationic polymeric space-charge electret material with antiviral properties bonded to a medical device material, wherein the cationic polymer is natural, semi-synthetic, or synthetic;
- further wherein the cationic polymer has a linear, branched, hyper-branched or dendrimer-like structure and the cationic polymer comprises at least cationic bearing group located in the backbone or side chain of the cationic polymer;
- and
- wherein the medical device material is vinyl, polyvinylchloride, latex, rubber, silicone, or plastic.
1 more element
A method of manufacturing an antiviral medical device material, comprising:
- dissolving a space-charge electret material in a suitable solvent to form a space-charge electret material/solvent mixture, wherein the concentration of the space-charge electret material in the solvent is 0.195%-10% by weight;
- mixing the space-charge electret with silicone material on a silicone gel plate;
- resting the mixture for 0-24 hours;
- conditioning the mixture for 0-24 hours at temperatures under 60 C;
- then extricating and removing the silicone gel plate, resulting in antiviral medical device material.
2 more elements
Dependencies are inferred from the claim text.