Electrode cable for electrical stimulation
First Claim
Patent Images
1. A medical electrode cable having a longitudinal axis, comprising:
- an exterior, tubular insulating sheath;
a plurality of wires disposed side-by-side substantially parallel to said sheath and forming a wire set, said wire set extending helically around and along said longitudinal axis;
one of said plurality of wires in said wire set consisting of a low-resistive conductor;
at least two of said plurality of wires in said wire set respectively consisting of high-resistive conductors, each of said high-resistive conductors consisting of a same high-resistivity material;
all wires in said plurality of wires having equal respective diameters; and
said low-resistive conductor being a wire consisting of a core exclusively of a low-resistivity material encased in an exterior jacket exclusively of said high-resistivity material.
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Abstract
A medical electrode cable has an exterior, tubular insulating sheath containing a number of side-by-side wires arranged substantially parallel to the sheath and helically proceeding around and,along a longitudinal axis. At least one of the wires is a low-resistivity conductor, and at least two of the wires are high-resistivity conductors. All of the wires have equal diameters. The low-resistivity conductor is a wire having a core of a low-resistivity material encased in an exterior jacket of the same high-resistivity material which forms the high-resistivity conductors.
38 Citations
13 Claims
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1. A medical electrode cable having a longitudinal axis, comprising:
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an exterior, tubular insulating sheath;
a plurality of wires disposed side-by-side substantially parallel to said sheath and forming a wire set, said wire set extending helically around and along said longitudinal axis;
one of said plurality of wires in said wire set consisting of a low-resistive conductor;
at least two of said plurality of wires in said wire set respectively consisting of high-resistive conductors, each of said high-resistive conductors consisting of a same high-resistivity material;
all wires in said plurality of wires having equal respective diameters; and
said low-resistive conductor being a wire consisting of a core exclusively of a low-resistivity material encased in an exterior jacket exclusively of said high-resistivity material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
an interior, tubular insulating sheath disposed in said interior volume and extending along said longitudinal axis; and
a second plurality of wires disposed side-by-side substantially parallel to and inside said interior sheath, said second plurality of wires forming a second wire set extending helically around and along said longitudinal axis coaxially with said first wire set.
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10. A medical electrode cable as claimed in claim 9 wherein said second wire set also includes one wire comprising a low-resistive conductor and at least two wires comprising respective high-resistive conductors, with each of the high-resistive conductors in said second wire set being comprised of said high-resistivity material and said low-resistive conductor in said second wire set having a core of said low-resistivity material encased in an exterior jacket comprised of said high-resistivity material.
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11. A medical electrode cable as claimed in claim 10 wherein said second wire set has a hollow interior proceeding entirely along said longitudinal axis forming a channel having a size adapted to admit a stylet unit.
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12. A medical electrode cable as claimed in claim 9 wherein each wire in said first plurality of wires forming said first wire set and each wire in said second plurality of wires forming said second wire set has a diameter in a range between 0.05 and 0.20 mm.
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13. A medical electrode cable as claimed in claim 1 wherein each wire in said plurality of wires forming said wire set has a diameter in a range between 0.05 and 0.20 mm.
Specification