System for deploying or retracting a prosthesis

摘要

The present invention relates to a system (10) for deploying and/or retracting a prosthesis in/from a duct of a mammalian body. The system (10) comprises an elongated outer pusher tube (12) having a proximal (13) and a distal end (14), an elongated inner carrier tube (16), having a proximal (18) and a distal (17) inner tube portion, the inner carrier tube (16) being partially disposed within the outer pusher tube (12) and being movable with respect to the outer pusher tube (12). Further, the distal portion (17) of the inner carrier tube (16) comprises at least one inflatable element (20) being arranged thereupon which is convertible from an inflated state to a deflated state, wherein for positioning the prosthesis within the duct or for retracting the prosthesis, the element (20) is in the inflated state to fixate the prosthesis in respect of the inner carrier tube (16), and wherein for releasing the prosthesis in the duct at a desirable location the inflatable element (20) is operable to be converted into the deflated state.