Wire Configuration and Method of Making for an Implantable Medical Apparatus
First Claim
1. An implantable medical apparatus carrying a conducting electrode and a connector electrode, comprising:
- a body of the apparatus; and
a conductive wire carried by the body and electrically coupling the conducting electrode and the connector electrode, the conductive wire comprising;
a silver core; and
an MP35N coil positioned around the silver core.
2 Assignments
0 Petitions
Accused Products
Abstract
A filar includes an inner conductive core that is formed of a low-resistivity material such as silver having a resistivity of less than 20 μΩ per centimeter. A conductive coil is provided around the core to form a filar. This coil is formed of a biocompatible alloy or super alloy having an ultimate tensile strength (UTS) of between 150 kilo pounds per square inch (ksi) and 280 ksi at room temperature. Examples of such alloys include CoCrMo, CoFeCrMo, and CoFeNiCrMo. In one specific embodiment, the alloy is MP35N (CoNiCrMo), which may be low-titanium (“low-ti”) MP35N. One or more such filars may be included within a wire. This wire may be carried by an implantable medical apparatus such as a lead, lead extension, or catheter. The wire may electrically couple elements such as connector electrodes to conducting electrodes or sensors.
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Citations
31 Claims
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1. An implantable medical apparatus carrying a conducting electrode and a connector electrode, comprising:
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a body of the apparatus; and a conductive wire carried by the body and electrically coupling the conducting electrode and the connector electrode, the conductive wire comprising; a silver core; and an MP35N coil positioned around the silver core. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An implantable medical apparatus carrying two elements, each of the elements being capable of at least one of receiving, transmitting, and conducting an electrical signal, the apparatus comprising:
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a silver core extending between, and electrically coupling, the two elements; and an MP35N coil wound around, and electrically coupled to, the silver core. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. An implantable medical apparatus, comprising:
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an MP35N coil; and a silver core positioned within the coil. - View Dependent Claims (19, 20, 21, 22)
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23. An implantable medical apparatus, comprising:
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a core having a resistivity of less than 20 micro-ohms per centimeter; and a coil surrounding the core formed of a biocompatible alloy having an ultimate tensile strength of between 150 kilo pounds per square inch (ksi) and 280 ksi at room temperature. - View Dependent Claims (24, 25)
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26. A method of manufacturing a medical apparatus, comprising:
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providing a silver core; winding an MP35N filament around the silver core to form a conductive wire; and including the wire within a body of the medical apparatus. - View Dependent Claims (27, 28, 29, 30, 31)
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Specification