US Patent 9220619 Stent delivery system

A stent delivery system including a stent disposed between an inner member and a deployment sheath is disclosed. Additionally, the stent delivery system includes a handle that may be coupled to the inner member and to the deployment sheath. The handle may include an actuation member coupled to the gear rack assembly so that actuation of the actuation member shifts the longitudinal position of the gear rack assembly and the deployment sheath. The gear rack assembly may include an engagement mechanism that may be configured to engage the inner member so that proximal retraction of the gear rack assembly results in proximal retraction of the inner shaft.