1 results about "Ioversol" patented technology

This invention discloses an improved reservoir-type vaginal ring. The drug is loaded as a drug-carrying core by mixing it with silicone rubber, and the core is coated with a controlled-release layer made of pure silicone rubber. The drug-carrying core contains a developing agent and a dispersant. The developing agent includes barium sulfate, titanium dioxide, iodotram, iodofol, iopromide, iodophenylhexamol, and iodophenyl ester. The dispersant includes methyl silicone oil, phenyl silicone oil, vinyl silicone oil, hydrogen-containing silicone oil, and glycerin. This invention combines the advantages of existing extrusion and molding methods, effectively controlling the size and regularity of the drug-carrying core of the reservoir-type vaginal ring, ensuring stable and controllable drug content. It can effectively improve the product deformation problems caused by cutting, external force, and hot-pressing vulcanization processes in existing co-extrusion processes.