Stent graft delivery device

摘要

The stent graft delivery device includes a shaft on which the stent graft is placed on the distal side; a sheath which is slidable outside of the shaft; a handle which is provided on the proximal side of the shaft and the sheath; and an operation unit which is provided with a switch mechanism. When a rotating member is rotated, while in a state of pressing a switch member of the switch mechanism inward, the sheath moves backward and the shaft moves forward using the handle as a reference.

主权项

1. A stent graft delivery device, comprising:
a stent graft; a shaft on which the stent graft is placed; a tubular sheath which is slidable in an axial direction with respect to the shaft and accommodates the stent graft; a handle which is provided on a proximal side of the shaft and the sheath; an operation unit which is movably provided in the axial direction with respect to the shaft, in a position separated from the handle in the axial direction and which drives at least the sheath from among the shaft and the sheath; and a switch mechanism which is provided in the operation unit, wherein the shaft and the sheath are provided movable in the axis direction using the handle as a reference, and the state of the operation unit is switched between a first state in which only the sheath from among the shaft and the sheath is allowed to be moved in the axial direction with respect to the handle while being controlled by the operation unit and a second state in which the shaft and the sheath are allowed to be moved in directions opposite to each other with respect to the handle while being controlled by the operation unit under the switch mechanism.