Patent ID: 7330765
Filing Date: 2008-02-12
Classification: A61N

Abstract:
1. A cardiac lead comprising: a lead body including a proximal end configured to be connected to a pulse generator, a distal end defining a cavity, and a guide lumen extending from the proximal end to the distal end; an electrode operatively coupled to the lead body; a fixation mechanism adapted to transition from an expanded configuration to a retracted configuration, the fixation mechanism comprising a proximal base, a distal base, and a plurality of interconnected tines connected to and extending between the proximal and distal bases, wherein the proximal base is retained within the cavity so that the fixation mechanism remains associated with the distal end of the lead body; and wherein the fixation mechanism defines a channel extending through the proximal and distal bases, the channel facilitating extension of a guiding member beyond the distal end of the lead body; an actuator operable to manipulate the fixation mechanism from the expanded configuration to the retracted configuration; and a guiding member adapted to extend through the channel defined by the fixation member and beyond the distal end of the lead body.