Patent ID: 8105267

Claim:
A method of providing repeated application of a substance to a body cavity of a patient, the method comprising: creating a passage into the body cavity of the patient; inserting a catheter into the body cavity via the passage, the catheter having: a gas delivery channel configured for delivery of gas to the body cavity of the patient and a substance delivery channel configured for delivery of the substance to the body cavity of the patient, wherein the gas delivery channel and the substance delivery channel extend separately into, and terminate within, a distal end positionable in the body cavity; and wherein the distal end is configured to cause gas from the gas delivery channel to mix with the substance from the substance delivery channel outside the gas delivery channel and substance delivery channel and within the body cavity to form an aerosol; injecting insufflation gas into the gas delivery channel of the catheter; injecting a substance into the body cavity via the substance delivery channel; nebulizing the substance with the insufflation gas only inside the body cavity after the insufflation gas and the substance emerge from the distal end; and both distending the body cavity and nebulizing the substance with only the insufflation gas injected in the gas delivery channel.