Patent ID: 7654989

Claim:
An access sheath, comprising: a sheath assembly having a multi-lumen hub, including a fitting that provides access to a main and a secondary lumen, from which the elongated sheath extends, the sheath assembly further comprising an elongated sheath tubing that is configured for insertion into a body passage, the elongated sheath tubing including the main lumen that is configured to receive a endoscope and the secondary lumen that extends along at least a portion of the main lumen; and a dilator assembly having a dilator tubing that is configured to be inserted into the main lumen of the elongated sheath tubing, the dilator tubing comprising an internal passage that is configured to receive a guidewire; wherein the sheath assembly is configured to be positioned within the body passage by advancing the sheath assembly and dilator assembly over a guidewire positioned within the body passage, and then removing the guidewire and dilator assembly from the sheath assembly.