PRE-LOADED MULTIPORT DELIVERY DEVICE

摘要

A pre-loaded stent graft delivery device and stent graft, the stent graft delivery device. The stent graft has at least one fenestration or side arm and the fenestration is preloaded with an indwelling guide wire. Indwelling access sheaths are provided within auxiliary lumens of a pusher catheter and dilators are preloaded into the access sheaths along with the indwelling guide wire. A handle assembly at a distal end of the guide wire catheter. The handle includes a multiport manifold with access ports to the auxiliary lumens in the pusher catheter. Upon deployment of the stent graft into the vasculature of a patient, the indwelling guide wire can be used to facilitate cathertisation of a side branch or target vessel through the fenestration or be used to stabilise the access sheath during catheterisation, advancement of the access sheath into the target vessel and deployment of a covered or uncovered stent therein through the access sheath.

主权项

1. A stent graft delivery device having two indwelling access sheaths preloaded with a stent graft on the delivery device, the stent graft delivery device comprising;
a guide wire catheter having a guide wire lumen therethrough; a handle assembly at a distal end of the guide wire catheter, the handle including a multiport manifold; a nose cone dilator at the proximal end of the guide wire catheter; a pusher catheter extending from the manifold towards the nose cone dilator, the pusher catheter comprising a longitudinal pusher lumen therethrough and two longitudinal auxiliary lumens, the pusher catheter completely enclosing the two longitudinal auxiliary lumens radially, a sheath disposed coaxially over the pusher catheter and the stent graft, the guide wire catheter extending through the pusher lumen and the guide wire catheter able to move longitudinally and rotationally with respect to the pusher catheter, the pusher catheter comprising a proximal end spaced distally from the nose cone dilator and thereby defining between the proximal end of the pusher catheter and the nose cone dilator a stent graft retention region; the stent graft comprising a stent structure, graft material having a side wall, at least two fenestrations in the side wall of graft material, a proximal end, a distal end and a lumen therethrough; the manifold comprising two side ports and a through bore, the two side ports extending distally at an angle from the through bore, the pusher catheter further comprising two apertures near the distal end of the pusher catheter and the two apertures opening respectively into the two auxiliary lumens, the pusher catheter being in communication with the through bore of the manifold such that the two apertures communicate respectively with the two side ports; an indwelling access sheath within each auxiliary lumen, the indwelling access sheaths each configured to receive a guide wire, the indwelling access sheaths extending through respective side ports, into the manifold from external thereof, into the distal end of the stent graft, through the lumen of the stent graft, and out of respective fenestrations.