Dual lumen peel-away sheath introducer

This invention relates generally to a system and method for introducing medical devices into vasculature. In particular, the present invention is concerned with the parallel introduction of a second guidewire into vasculature of the body, into which one guidewire has already been introduced, in such a way as to prevent entanglement of the guidewires. The present invention is also directed to facilitating removal of a dilator from vasculature without having to retract it the entire guidewire length. As used herein, the term "proximal" refers to a location on the device closest to the clinician using the device. Conversely, the term "distal" refers to a location on the device farthest from the clinician and closest to the patient into whom the device is to be inserted. A system and method for introducing medical devices within vasculature that incorporates a dual lumen introducer allowing a plurality of guidewires to be introduced without entanglement. The introducer further includes slits formed in the dual lumen introducer and a dilator or an inner member with grooves that facilitate easy removal of the introducer and dilator from vasculature. The dual lumen introducer maintains separation between guidewires. The slits in the dual lumen introducer and the dilator grooves allow removal from the guidewires by slipping the device off the guidewires without retracting them the entire guidewire length. A peel-away sheath protects the vasculature from the guidewires, prevents the dilator from slipping off the guidewires, and maintains access to an expanded vessel for the introduction of medical devices.