| 摘要 |
PROBLEM TO BE SOLVED: To easily place a lead head against a wall of a septum, towards a designated stimulation site. SOLUTION: A stylet include a flexible wire 10, to be introduced by its distal end in a central lumen of the lead, and a control handle 18. The wire is elastically deformable in bending and has sufficient rigidity in torsion to enable transmission by the handle rotation of a rotational movement over the entire length of the wire. In the unstressed status, the wire comprises successively in its distal part 12, a first curvilinear portion C1, a first straight portion D1, a second curvilinear portion C2 and optionally a second straight portion D2. The first and second curvilinear portions C!, C2 extend in respective planes P1, P2 making an angleϕ3 between them defining a dihedral angleΔwhich axisϕcomprises the first straight portion D1. The total length of the first curvilinear portion C1, the first straight portion D1 and the second curvilinear portion C2 is between 82 and 195 mm, this so as to coincide with the anatomical curvature of the venous system. COPYRIGHT: (C)2010,JPO&INPIT |
