| 摘要 |
A pacemaker lead is disclosed of the type comprising a flexible cord formed of at least one spiralled electric conductor and surrounded by a sheath of insulating material and connected, at a proximal end of the lead, to a connection head removable from the pacemaker and, at a distal end, to a stimulation electrode device, where the lead is characterized by the addition of at least one opening in the sheath in the connection head that allows electrical conductive access to the spiralled conductor between the proximal and distal ends of the lead and where said opening has an associated removable closing means and where the opening is designed to be matable to an external distal lead end to make electrical contact with the conductor and to make the external lead maintain electrical contact during pacemaker implantation and replacement.
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