Medical electrode system having a sleeve body and control element therefor for selectively positioning an exposed conductor area
First Claim
1. A medical electrode system comprising:
- a flexible, longitudinally extending cable adapted for implantation in a medical subject and having an exterior insulating jacket containing first and second flexible electrical conductors;
an exposed, first electrode carried on said cable and electrically connected to said first electrical conductor;
said cable having an electrically conductive surface electrically connected to said second electrical conductor and disposed a distance from said first electrode and exposed to the exterior of said cable;
a sleeve body surrounding said cable and extending over a longitudinal portion of said cable, said sleeve body being selectively positionable on said cable to partially cover said electrically conductive surface and to leave a remainder of said electrically conductive surface exposed at a selected position relative to said first electrode, said remainder of said conductive surface forming a second electrode; and
a control element temporarily engage able with said sleeve body for selectively positioning said sleeve body on said cable to select the position of said exposed surface relative to said first electrode.
1 Assignment
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Accused Products
Abstract
An electrode apparatus, such as an intravascular or intracardiac pacemaker or defibrillation electrode with an electrode cable has a jacket of insulation enclosing a first elongated, flexible conductor, connected to a first electrode arranged on the electrode cable, and also enclosing at least a second conductor, connected to a conductive surface forming a second electrode arranged on the electrode cable at a distance from the first electrode. In order to achieve an electrode apparatus with which the distance between the electrode on the electrode cable cart be changed in a very simple manner and in which the surface area exposed to tissue of at least one electrode can be enlarged, reduced and even rotated around the electrode cable in certain instances, the electrode apparatus is equipped with at least one sleeve-like body, insulated against the surroundings and slidable on the electrode cable, which at least partially covers the conductive surface and with which the second electrode can be formed whose position in relation to the first electrode and/or whose size can be varied.
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Citations
36 Claims
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1. A medical electrode system comprising:
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a flexible, longitudinally extending cable adapted for implantation in a medical subject and having an exterior insulating jacket containing first and second flexible electrical conductors; an exposed, first electrode carried on said cable and electrically connected to said first electrical conductor; said cable having an electrically conductive surface electrically connected to said second electrical conductor and disposed a distance from said first electrode and exposed to the exterior of said cable; a sleeve body surrounding said cable and extending over a longitudinal portion of said cable, said sleeve body being selectively positionable on said cable to partially cover said electrically conductive surface and to leave a remainder of said electrically conductive surface exposed at a selected position relative to said first electrode, said remainder of said conductive surface forming a second electrode; and a control element temporarily engage able with said sleeve body for selectively positioning said sleeve body on said cable to select the position of said exposed surface relative to said first electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A medical electrode system comprising:
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a flexible, longitudinally extending cable adapted for implantation in a medical subject and having an exterior insulating jacket containing first and second flexible electrical conductors; an exposed first electrode carried on said cable and electrically connected to said first electrical conductor; said cable having an electrically conductive surface electrically connected to said second electrical conductor and disposed a distance from said first electrode and exposed to the exterior of said cable; a sleeve body surrounding said cable and extending over a longitudinal portion of said cable, said sleeve body being selectively positionable on said cable to provide a current path between said electrically conductive surface and said medical subject, said current path including a second electrode and said second electrode having a position relative to said first electrode which is selectively variable by displacing said sleeve body relative to said cable; and a control element temporarily engageable with said sleeve body for selectively positioning said sleeve body on said cable to select the position of said exposed surface relative to said first electrode. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification