A sheath assembly and method for placing a sheath into a patient. The sheath assembly may include a sheath having a main lumen, a secondary lumen, and an opening between the main lumen and secondary lumen. A dilator tubing may be positioned in the main lumen. A guidewire and a safety wire may be provided with the sheath assembly. The method may include inserting the guidewire into a body passage of the patient, inserting a proximal end of the guidewire into a distal end of the dilator tubing, advancing the dilator tubing and sheath over the guidewire, inserting the safety wire through the secondary lumen of the sheath tubing prior to removing the guidewire and dilator tubing, and removing the guidewire and the dilator tubing from the sheath tubing.
