ELECTRODE WITH PROTECTED EDGE REGION
The present invention relates to a medical electrode comprising a base body on which an electrically conductive first layer and a cover layer are arranged, wherein the cover layer comprises an overhang which partially covers the first layer.
1 . A medical electrode, comprising a base body on which an electrically conductive first layer and a cover layer are arranged, wherein the cover layer comprises an overhang which partially covers the first layer.
2 . The medical electrode according to claim 1 , wherein the cover layer comprises a recess.
3 . The medical electrode according to claim 2 , wherein the recess tapers or widens toward the base body.
4 . The medical electrode according to claim 1 , wherein the overhang comprises a side wall arranged at an angle to the surface of the first layer that is (i) less than 80° or (ii) 110° to 170°.
5 . The medical electrode according to claim 1 , further comprising an electrically conductive second layer arranged on the first layer.
6 . The medical electrode according to claim 5 , wherein the second layer comprises an electrically conductive polymer.
7 . The medical electrode according to claim 6 , wherein the electrically conductive polymer comprises PEDOT.
8 . The medical electrode according to claim 5 , wherein the cover layer comprises a recess, wherein the second layer is arranged exclusively within the recess, wherein the outward-facing surface of the second layer is spaced apart from the outward-facing surface of the cover layer.
9 . The medical electrode according to claim 1 , wherein the base body comprises a flexible polymer substrate.
10 . The medical electrode according to claim 1 , further comprising a conductor track which is electrically conductively connected to the first layer.
11 . The medical electrode according to claim 1 , wherein the overhang is arranged and configured to mechanically stabilize the first layer.
12 . The medical electrode according to claim 1 , wherein the overhang is arranged and configured to enable an electrical charge exchange between a liquid external medium and the first layer and/or optionally the second layer from different directions.
13 . The medical electrode according to claim 1 , wherein the overhang is arranged and configured to protect the base body against the penetration of liquid.
14 . The medical electrode according to claim 1 , wherein the edge of the first layer is substantially completely covered by the cover layer.
15 . A use of a medical electrode according to claim 1 in a device which is configured for electrical stimulation, detection, or ablation.
16 . A method for producing a medical electrode, comprising the steps of:
(i) providing a base body on which an electrically conductive first layer is arranged, (ii) arranging a cover layer on the base body so that the first layer is partially covered by an overhang ( 107 ) of the cover layer.
17 . The method according to claim 16 , wherein the overhang comprises a side wall arranged at an angle to the surface of the first layer ( 102 ) that is (i) less than 80° or (ii) 110° to 170°.