APPARATUS TO SELECTIVELY INCREASE MEDICAL DEVICE LEAD INNER CONDUCTOR INDUCTANCE
First Claim
1. A medical device lead comprising:
- an insulative lead body;
an outer conductive coil extending through the lead body, the outer conductive coil coupled to a first electrode at a distal end of the outer conductive coil; and
an inner conductive coil extending coaxially with the outer conductive coil, the inner conductive coil coupled to a second electrode at a distal end of the inner conductive coil, the inner conductive coil including a central lumen; and
a flexible core assembly disposed in the central lumen, the flexible core assembly comprised of a material that has a saturation magnetization of at least about 1.5 T and a relative permeability of greater than one, the flexible core assembly including a positioning interface configured for manipulation of the flexible core assembly such that the flexible core assembly translates through the central lumen during insertion of the flexible core assembly into the central lumen and extraction of the flexible core assembly from the central lumen.
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Accused Products
Abstract
A medical device lead includes an insulative lead body, outer and inner conductive coils, and a flexible core assembly. The outer conductive coil extends through the lead body and is coupled to a first electrode at a distal end of the outer conductive coil. The inner conductive coil extends coaxially with the outer conductive coil, is coupled to a second electrode at a distal end of the inner conductive coil, and includes a central lumen. The flexible core assembly is disposed in the central lumen and is comprised of a material that has a saturation magnetization of at least about 1.5 T and a relative permeability of greater than one. The flexible core assembly includes a positioning interface configured for manipulation of the flexible core assembly such that the flexible core assembly translates through the central lumen during insertion and extraction of the flexible core assembly.
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Citations
20 Claims
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1. A medical device lead comprising:
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an insulative lead body; an outer conductive coil extending through the lead body, the outer conductive coil coupled to a first electrode at a distal end of the outer conductive coil; and an inner conductive coil extending coaxially with the outer conductive coil, the inner conductive coil coupled to a second electrode at a distal end of the inner conductive coil, the inner conductive coil including a central lumen; and a flexible core assembly disposed in the central lumen, the flexible core assembly comprised of a material that has a saturation magnetization of at least about 1.5 T and a relative permeability of greater than one, the flexible core assembly including a positioning interface configured for manipulation of the flexible core assembly such that the flexible core assembly translates through the central lumen during insertion of the flexible core assembly into the central lumen and extraction of the flexible core assembly from the central lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A medical device lead comprising:
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a conductive coil extending through a lead body and including a proximal end, a distal end, and a central lumen; and a flexible core assembly disposed in the central lumen, the flexible core assembly comprised of a material that has a saturation magnetization of at least about 1.5 T and a relative permeability of greater than one, the flexible core assembly including a positioning interface configured for manipulation of the flexible core assembly such that the flexible core assembly translates through the central lumen during insertion of the flexible core assembly into the central lumen and extraction of the flexible core assembly from the central lumen. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An assembly for increasing the inductance of a conductive coil in a medical device lead, the assembly positionable in a central lumen of the conductive coil, the assembly comprising:
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a flexible core comprised of a material that has a saturation magnetization of at least about 1.5 T and a relative permeability of greater than one; and a positioning interface coupled to a proximal end of the flexible core for manipulating the flexible core such that the flexible core translates through the central lumen during insertion of the flexible core into the central lumen and extraction of the flexible core from the central lumen. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification