Stent delivery system
View Patent ↗A stent delivery system comprises a stent having a first connector disposed on a stent proximal end, and a pusher wire having a second connector disposed on a pusher wire distal end, wherein the first and second connectors are configured to releasably attach to each other.
1. A stent delivery system, comprising:
a pusher wire, comprising:
a tubular body having a pusher wire lumen;
an elongate body disposed in the pusher wire lumen;
a funnel shaped bumper disposed on a distal end of the tubular body;
a pair of holders disposed on the elongate body;
a middle bumper disposed on the elongate body distal of the pair of holders, wherein the pair of holders is configured to close around the middle bumper and secure a stent thereto when the elongate body is pulled proximally into the tubular body; and
a catheter having a proximal end, a distal end, and a catheter lumen extending between the proximal end and the distal end,
wherein the pusher wire is coaxially disposed within a lumen of the catheter, and
wherein an opening of the funnel shaped bumper is smaller than a cross sectional area of the pair of holders when closed around the middle bumper.
2. The system of claim 1 , wherein the pair of holders is biased in an open position.