an exemplary wedge 66 is attached to the pulling wire 64 at a location between the distal end 61 and the shaft ring 63 it will be understood that the securement device 66 may have other shapes such as a conical shape or shapes similar to those described in copending applications wo 2009 050599 and wo 2009 050600 when the pulling wire 64 is pulled in the direction of arrow 65 the distal portion 67 of the pacing lead 14 bends until the securement device or wedge 66 engages with and locks inside the opening 62 of shaft ring 63 alternatively instead of providing a separate opening 62 the wedge 66 may lock directly between the shaft ring 63 and the distal portion 67 of the pacing lead 14 as indicated in fig6 b the pulling wire 64 may be designed to tear at the rated break point 68 under the pulling force following locking of wedge 66 or by a rotation of the pulling wire 64 the curved section 64 of the pacing lead 14 is now in apposition with the vessel wall not shown securing the pacing lead inside the vessel 12 another exemplary embodiment illustrated in fig7 a to 7 c employs a different type of anchoring mechanism 70 for improving securement of a pacing lead 14 in.