Abstract: A medical device includes an elongated body having a proximal end and a distal end and a braided tubular body extending coaxially with the elongated body between the proximal and distal ends. The braided tubular body includes multiple cables extending helically in opposing directions in an interwoven manner. Each cable includes multiple, electrically conductive filars. In some examples, each filar includes an electrically insulating coating or layer.

Abstract: A composite filar has a conductive core, an outer fatigue-resistant metallic layer and a diffusion barrier between the core and the fatigue-resistant layer to prevent intermetallic diffusion between the core and the fatigue-resistant layer.

Abstract: A composite filar has a conductive core, an outer fatigue-resistant metallic layer and a diffusion barrier between the core and the fatigue-resistant layer to prevent intermetallic diffusion between the core and the fatigue-resistant layer.

Abstract: A coiled continuous conductor wire of an implantable medical electrical lead includes a first, electrode length and a second, insulated length, wherein the insulated length of the wire has a radial cross-section defined by a round profile, while the electrode length of the wire has a radial cross-section defined by a flattened profile, a long axis edge of which defines an outer diameter surface of the electrode length. The radial cross-section profile, along the electrode length of wire, is preferably flattened after an entire length of the wire has been coiled.

Abstract: A coiled continuous conductor wire of an implantable medical electrical lead includes a first, electrode length and a second, insulated length, wherein the insulated length of the wire has a radial cross-section defined by a round profile, while the electrode length of the wire has a radial cross-section defined by a flattened profile, a long axis edge of which defines an outer diameter surface of the electrode length. The radial cross-section profile, along the electrode length of wire, is preferably flattened after an entire length of the wire has been coiled.

Abstract: A coiled continuous conductor wire of an implantable medical electrical lead includes a first, electrode length and a second, insulated length, wherein the insulated length of the wire has a radial cross-section defined by a round profile, while the electrode length of the wire has a radial cross-section defined by a flattened profile, a long axis edge of which defines an outer diameter surface of the electrode length. The radial cross-section profile, along the electrode length of wire, is preferably flattened after an entire length of the wire has been coiled.

Abstract: A device and system for mapping and/or ablation wherein conductive portions of the electrodes and insulated portions of the electrode are composed of the same material. The system may generally include a medical device coupled to a console, the device including a distal assembly positionable at or near a target tissue region. The distal assembly may include one or more electrodes that include an integrated electrode head and electrode wire. The wire may be insulated by an oxidized layer. Alternatively, the distal assembly may include a plurality of protruding circumferential electrodes that are spaced apart by substantially insulated portions. The electrodes and insulated portions may be composed of the same material, with the insulated portions including an oxidized layer on an external surface.

Abstract: Techniques related to coils for medical device are disclosed. One example coil may comprise multiple filars, 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. At least one of the multiple filars may be electrically insulated one from another. A structural body, such as a lead body, may carry the coil. One or more filars may carry a low-resistance core.

Abstract: A medical electrical lead having an elongated conductor including one or more wires made of a modified MP35N alloy. The modified MP35N alloy is formed from a melt composition modified to reduce an amount of titanium-based inclusion forming elements.

Abstract: A connector terminal of a medical electrical lead or adapter includes a strut member supporting at least one electrical contact element and at least one seal zone element, which is positioned adjacent to the contact element.

Abstract: A bipolar cardiac vein lead and method of assembly is provided wherein the lead includes a flexible coil anode electrode such that the lead may be advanced through a tortuous pathway. The coil electrode is coupled to a conductor using a method of assembly that minimizes or eliminates rigid components, maintaining flexibility of the distal lead end. Multi-polar cardiac vein leads may include multiple flexible coil electrodes to achieve pacing and/or sensing in the left atrium and the left ventricle or at multiple left heart sites.

Abstract: A medical electrical lead comprising an elongated conductor including one or more wires made of a modified MP35N alloy; wherein the MP35N alloy is formed from a melt composition modified to reduce an amount of titanium-based inclusion forming elements.

Abstract: A bipolar cardiac vein lead and method of assembly is provided wherein the lead includes a flexible coil anode electrode such that the lead may be advanced through a tortuous pathway. The coil electrode is coupled to a conductor using a method of assembly that minimizes or eliminates rigid components, maintaining flexibility of the distal lead end. Multi-polar cardiac vein leads may include multiple flexible coil electrodes to achieve pacing and/or sensing in the left atrium and the left ventricle or at multiple left heart sites.

Abstract: An implantable medical device lead having an integral biostable in-sutu grown oxide insulation and process for forming that includes a lead body extending from a proximal end to a distal end, and a plurality of conductor wires electrically coupling the proximal end and the distal end of the lead body, with one or more of the plurality of conductor wires being formed of a material having a chemically modifiable surface for producing an insulating oxide layer thereon. An insulation layer corresponding to the native oxide layer is formed about the one or more of the plurality of conductor wires.

Abstract: An implantable electrical lead having a tip electrode and a ring electrode located proximal to the tip electrode. A flexible spacer is located between the electrodes and includes a tubular plastic member having a thickness gradually increasing proximally and distally of a point intermediate the electrodes. Optionally the spacer includes an inner member of a lower durometer plastic, gradually decreasing in thickness proximally and distally from the intermediate point.

Abstract: A medical lead which has a connector assembly coupled to an electrode by a lead body, the lead body is designed so as to have greater resistance to crush fatigue in the area which is located between the rib and clavicle when implanted. In particular the lead body of the present invention features an insulative sheath covering a coiled conductor. The coiled conductor has three sections, viz., proximal, intermediate and distal sections. The intermediate section has a different pitch as compared to proximal section and distal section. In the preferred embodiment, intermediate section has a pitch of approximately 0.100 while proximal section has a pitch of approximately 0.025 and distal section has a pitch of approximately 0.025. Moreover, intermediate section has a length of approximately 10.4 inches while proximal section has a length of approximately 5.1 inches and distal section has a length of approximately 7.2 inches.

Abstract: A biomedical lead conductor body formed of a coiled wire conductor that is sheathed loosely within a coiled insulative sheath of biocompatible and biostable material allowing a gap or space to be present between the exterior surface of the coiled wire conductor and the adjacent interior surface of the insulative sheath. The coiled insulative sheath is loosely fitted around the coiled wire conductor in order to compensate for defects in the coiled insulative sheath by spreading any corrosion of the wire that may take place because of the defect away from the site of a defect and along the surface of the coiled wire conductor. The lead body is incorporated into unipolar, bipolar or multi-polar biomedical leads having single filar coil windings, or multi-filar coil windings that may be redundantly electrically connected. The coiled wire conductors and coiled insulative sheaths may be parallel-wound and/or coaxially wound within the outer lead body insulative sheath.