A nitric oxide gas-releasing conduit configured for surgical implantation through a patients tympanic membrane. The nitric oxide gas-releasing conduit comprises a gas-permeable cured resin material configured for releasably sequestering therein gas. The gas-permeable cured resin material is charged with nitric oxide gas. The nitric oxide gas-releasing conduit may be optionally coated with an antimicrobial gas-releasing composition. The gas-releasing coating composition may be configured to release nitric oxide.