| 摘要 |
A first catheter (30) has a return bend formed near its distal free end and a first magnet (32) mounted on the distal free end. The first catheter (17) is introduced through a sheath in a first common femoral artery (16) into an elongate leg of a stent graft and pulled back until the return bend positions the first magnet near a truncate leg of the stent graft. A second catheter (36) having a second magnet (38) on its distal free end is introduced through a second common femoral artery (18) and positioned near the first magnet (32) so that the magnets become interconnected. The second catheter (18) is pulled into the stent graft, a guide wire is inserted through it, and a second sheath is introduced into the stent graft. A contralateral limb is deployed through the second sheath and the second sheath is removed. In another embodiment, catheters with magnets pull a nephroureteral stent from a kidney.
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