Cardiac lead having self-expanding fixation features
First Claim
Patent Images
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.
1 Assignment
0 Petitions
Accused Products
Abstract
A cardiac lead for placement in the vicinity of a patient'"'"'s heart is described. The lead includes a self-expanding fixation mechanism, which in a retracted position, is contained within a cavity disposed at a distal end of the lead. In an expanded position, the fixation mechanism extends axially from the distal end of the lead and expands radially into contact with a desired lumen site.
-
Citations
23 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A cardiac lead comprising:
-
a lead body including a proximal end configured to be connected to a pulse generator, a distal end, and a guide lumen extending from the proximal end to the distal end; an electrode operatively coupled to the lead body; a sheath defining a cavity at the distal end of the lead body, the sheath adapted to transition from a retracted position to an extended position; a fixation mechanism adapted to transition from an expanded configuration to a compressed 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 configured to be 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; and an actuator operable to manipulate the sheath from the extended position to the retracted position. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. A cardiac rhythm management system comprising:
-
a pulse generator; a cardiac lead including a lead body having a proximal end connected to the pulse generator, a distal end defining a cavity, a guide lumen extending from the proximal end to the distal end; and
an electrode operatively coupled to thelead 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; andan actuator operable to manipulate the fixation mechanism from the expanded configuration to the retracted configuration. - View Dependent Claims (18, 19, 20, 21, 22, 23)
-
Specification