Patent ID: 8545514

Claim:
A dual lumen reperfusion system for insertion into cerebral vasculature for the treatment of ischemic stroke, comprising, in combination: a rapid exchange microcatheter comprising a proximal end, a distal end, a first lumen, and a second lumen separate from the first lumen, both the first lumen and the second lumen terminating distally at the distal end of the rapid exchange microcatheter, the first lumen terminating proximally at the proximal end of the rapid exchange microcatheter; wherein the rapid exchange microcatheter is dimensioned for delivery in tortuous cerebral vasculature; a delivery device disposed within the first lumen; wherein the delivery device is coupled to a stroke device, wherein the stroke device is self-expandable; wherein the stroke device is configured to facilitate reperfusion and removal of one or more stroke-inducing emboli within a blood vessel in the brain; a guidewire disposed within the second lumen; and wherein the second lumen is housed by a segment of the rapid exchange microcatheter that has a length that is less than an entire length of the rapid exchange microcatheter and in the range of about 5 cm to about 50 cm to facilitate movement of the guidewire through the tortuous cerebral vasculature.