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US 8,475,828 B2Granted
Medical apparatus and method for producing same
AssigneeCovidien LP
InventorsKenichi Amano, Yoshimi Akaike
Life of this patent
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Abstract
A medical device that includes at least one antibiotic in a macromolecular substance that swells upon contact with a solvent. Also, a method for preparing an antibiotic-containing medical device that involves contacting a medical device having at least a portion of the surface formed from a swellable macromolecular substance, with a solvent that swells the macromolecular substance, contacting the swollen macromolecular substance with at least one antibiotic, and removing the solvent from the swollen macromolecular substance.
Claims8
A method for preparing an antibiotic-containing medical device comprising:
- providing a medical device having at least a portion of the surface formed from a swellable macromolecular substance;
- swelling said macromolecular substance by contacting it with an aprotic polar solvent;
- then contacting the swollen macromolecular substance with at least one water-soluble antibiotic dissolved in an aqueous solution;
- and removing residual solvent.
1 more element
Dependencies are inferred from the claim text.