Cable configurations for a medical device
First Claim
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1. An implantable medical device (IMD), comprising:
- multiple wires, each of the wires having an outer diameter of between 0.001 inches and 0.01 inches, and each being formed of a biocompatible beta titanium alloy having an elastic modulus ranging from 30 GigaPascals (GPa) to 90 GPa and comprising at least two elements selected from a group consisting of titanium, molybdenum, niobium, tantalum, zirconium, chromium, iron and tin, the wires being twisted together to form a cable and heated to a stress-relieve temperature of the beta titanium alloy so that stress within the beta titanium alloy presented by force used to twist the wires is removed; and
a structural body carrying the cable.
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Abstract
Techniques are disclosed related to cables that may be used within a medical device. According to one example, a cable may comprise multiple wires. Each wire may be formed of a biocompatible beta titanium alloy having an elastic modulus ranging from 30 GigaPascals (GPa) to 90 GPa and comprising at least two elements selected from a group of titanium, molybdenum, niobium, tantalum, zirconium, chromium, iron and tin. The cable may be heated to a stress-relieve temperature of the beta titanium alloy to allow the cable to retain a desired configuration while remaining ductile. The cable may be included within a medical device, such as a medical electrical lead.
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Citations
50 Claims
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1. An implantable medical device (IMD), comprising:
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multiple wires, each of the wires having an outer diameter of between 0.001 inches and 0.01 inches, and each being formed of a biocompatible beta titanium alloy having an elastic modulus ranging from 30 GigaPascals (GPa) to 90 GPa and comprising at least two elements selected from a group consisting of titanium, molybdenum, niobium, tantalum, zirconium, chromium, iron and tin, the wires being twisted together to form a cable and heated to a stress-relieve temperature of the beta titanium alloy so that stress within the beta titanium alloy presented by force used to twist the wires is removed; and a structural body carrying the cable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method, comprising:
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twisting multiple wires together to form a cable, each of the wires having an outer diameter ranging between 0.001 inches and 0.01 inches and being formed of a biocompatible beta titanium alloy having an elastic modulus ranging from 30 GigaPascals (GPa) to 90 GPa and comprising at least two elements selected from a group of titanium, molybdenum, niobium, tantalum, zirconium, chromium, iron and tin; heating the cable to a stress-relieve temperature of the beta titanium alloy so that stress within the beta titanium alloy presented by force used to twist the wires is removed; and including the cable within a medical device. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A medical electrical lead, comprising:
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a lead body; and a cable carried by the lead body comprising multiple wires, each of the wires having an outer diameter of between 0.001 inches and 0.01 inches and each being formed of a biocompatible beta titanium alloy having an elastic modulus ranging from 30 GigaPascals (GPa) to 90 GPa and comprising at least two elements from a group consisting of titanium, molybdenum, niobium, tantalum, zirconium, chromium, iron and tin, wherein the wires are heated to a stress-relieve temperature of the beta titanium alloy so that stress within the beta titanium alloy presented by force used to twist the wires is removed. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50)
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Specification