Vascular fixation device
First Claim
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1. A method for implanting a cardiac lead device in a body lumen comprising:
- initially implanting an outer guide into the body lumen, the outer guide having a proximal end and a distal end and including a tubular wall defining a lumen extending between the proximal and distal ends;
guiding an inner guide through the outer guide;
guiding the cardiac lead device into the body lumen through the inner guide, the device including a conductive lead body having a proximal end and a distal end, the lead body defining at least one lead lumen extending between the proximal and distal ends, the lead body including a tubular wall; and
deploying an expandable fixation mechanism from a compressed position to an expanded position such that the fixation mechanism engages an internal wall of the body lumen with the lead body extending through the expandable fixation mechanism, the fixation mechanism being secured to an outer surface of the tubular wall of the lead body to provide selective relative movement between the fixation mechanism and the lead body; and
moving the lead body relative to the expanded fixation mechanism.
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Abstract
In one embodiment, the present invention provides a cardiac lead device including a fixation mechanism slidably attached to the lead such that when the fixation mechanism is expanded in to contact with a body lumen, the lead may be moved relative to the fixation mechanism if desired. Such lead movement may be limited by complimentary structure on the lead body and the fixation mechanism that prevents the lead from moving unless sufficient force is applied to the lead.
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Citations
16 Claims
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1. A method for implanting a cardiac lead device in a body lumen comprising:
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initially implanting an outer guide into the body lumen, the outer guide having a proximal end and a distal end and including a tubular wall defining a lumen extending between the proximal and distal ends; guiding an inner guide through the outer guide; guiding the cardiac lead device into the body lumen through the inner guide, the device including a conductive lead body having a proximal end and a distal end, the lead body defining at least one lead lumen extending between the proximal and distal ends, the lead body including a tubular wall; and deploying an expandable fixation mechanism from a compressed position to an expanded position such that the fixation mechanism engages an internal wall of the body lumen with the lead body extending through the expandable fixation mechanism, the fixation mechanism being secured to an outer surface of the tubular wall of the lead body to provide selective relative movement between the fixation mechanism and the lead body; and moving the lead body relative to the expanded fixation mechanism. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for implanting a cardiac lead device comprising:
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advancing the cardiac lead device to a target location within a vessel adjacent a vagus nerve, the vessel being any one of a right internal jugular vein, a left internal jugular vein, a brachiocephalic vein, or a superior vena cava, the device including a conductive lead body having a proximal end and a distal end, the lead body defining at least one lead lumen extending between the proximal and distal ends, at least one electrode located on the lead body, and an expandable fixation mechanism secured to an outer surface of the lead body; deploying the expandable fixation mechanism from a compressed configuration to an expanded configuration such that the fixation mechanism engages an internal wall of the vessel to provide selective relative movement between the fixation mechanism and the lead body along a longitudinal axis of the lead body; and moving the lead body relative to the expanded fixation mechanism to adjust a position of the cardiac lead device in the vessel. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification