29 on the detachment wire 26 such that radial movement of the supporting strut with respect to the detachment wire 26 is substantially restricted while axial movement of the locking catheter 25 over the detachment wire 26 is unhindered fig1 b a commercially available introducer sheath fitted with a haemostatic valve and a female luer hub is used to implant all embodiments of the prosthesis that do not have an aperture 1 7 10 13 21 prostheses with apertures 15 19 20 are implanted with the dployment tool 32 represented by fig1 it consists of a introducer catheter 33 fig1 and an inner axially movable coaxial stiffening catheter 34 with a central lumen 35 fig1 the leading end 36 of the introducer catheter 33 is concentrically flared to the trailing end of the catheter is fitted a tuohy borst valve 37 carrying a female luer hub 38 the lumen of the introducer catheter 33 communicates with the lumen of the female luer hub 38 via the tuohy borst valve 37 along the shaft 39 of the introducer catheter 33 are single or multiple side ports 40 41 that spatially correspond to the apertures on the respective prosthesis when the prosthesis is radially compacted the side ports 40 41 extend linearly to the leading end 36 of the introducer catheter 33 in the form of narrow slits 42 43 fig1 19 20 21 the stiffening catheter 34 has one or multiple side ports fig1 that spatially correspond to.