IMPLANTABLE ELECTRICAL LEAD INCLUDING A COOLING ASSEMBLY TO DISSIPATE MRI INDUCED ELECTRODE HEAT
First Claim
Patent Images
1. An implantable medical device lead comprising:
- an insulative lead body;
an outer conductive coil extending through the lead body, the outer conductive coil coupled to a proximal electrode at a distal end of the outer conductive coil;
an inner conductive coil extending coaxially with the outer conductive coil and coupled to a distal electrode at a distal end of the inner conductive coil; and
a cooling assembly thermally coupled to the distal electrode to dissipate heat generated at the distal electrode during exposure to magnetic resonance imaging (MRI) fields.
1 Assignment
0 Petitions
Accused Products
Abstract
An implantable medical device lead includes an insulative lead body, an outer conductive coil extending through the lead body, and an inner conductive coil extending coaxially with the outer conductive coil. The outer conductive coil is coupled to a proximal electrode at a distal end of the outer conductive coil, and the inner conductive coil is coupled to a distal electrode at a distal end of the inner conductive coil. A cooling assembly is thermally coupled to the distal electrode to dissipate heat generated at the distal electrode during exposure to magnetic resonance imaging (MRI) fields.
-
Citations
23 Claims
-
1. An implantable medical device lead comprising:
-
an insulative lead body; an outer conductive coil extending through the lead body, the outer conductive coil coupled to a proximal electrode at a distal end of the outer conductive coil; an inner conductive coil extending coaxially with the outer conductive coil and coupled to a distal electrode at a distal end of the inner conductive coil; and a cooling assembly thermally coupled to the distal electrode to dissipate heat generated at the distal electrode during exposure to magnetic resonance imaging (MRI) fields. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A medical device comprising:
-
a pulse generator; and a lead including a lead body, an outer conductive coil extending through the lead body, and an inner conductive coil extending coaxially with the outer conductive coil, the outer conductive coil coupled to a proximal electrode at a distal end of the outer conductive coil, and the inner conductive coil coupled to a distal electrode at a distal end of the inner conductive coil; a cooling assembly thermally coupled to the distal electrode and electrically coupled to the pulse generator to dissipate heat generated at the distal electrode during exposure to magnetic resonance imaging (MRI) fields. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
-
17. A medical device comprising:
-
a pulse generator including an energy storage device; and a lead comprising; an insulative lead body; a conductor assembly extending through the lead body and including at least first, second, and third filars, wherein the first filar is coupled to the pulse generator at a proximal end of the first filar and to a distal electrode at a distal end of the first filar; and a cooling assembly thermally coupled to the distal electrode to dissipate heat generated at the distal electrode during exposure to magnetic resonance imaging (MRI) fields, the cooling assembly electrically coupled to the energy storage device via the second and third filars. - View Dependent Claims (18, 21, 22, 23)
-
- 19. The medical device of claim 19, wherein the energy storage device drives the cooling assembly to pull heat from the distal electrode.
Specification