Patent ID: 8364236

Claim:
A device for insertion into a body lumen, comprising: an electrode assembly strip with exposed electrodes comprising: a polymeric substrate having an upper surface and an opposed lower surface; at least two electrodes disposed over a portion of the upper surface of the polymeric substrate; at least two electrical traces disposed over a portion of the lower surface of the polymeric substrate in electrical communication with the at least two electrodes by way of metal plated holes through the substrate; a first polymeric covering disposed on portions of the upper surface of the polymeric substrate not having the at least two of said electrodes thereon, said first polymeric covering having holes disposed over the at least two of said electrodes thereby defining at least two exposed electrodes; a second polymeric covering disposed over the at least two of the electrical traces and portions of the lower surface of the substrate not having the at least two electrical traces thereon; a first flexible polymeric tube having opposed open ends defining an open lumen therein between and an inner tubular surface and an outer tubular surface; wherein the electrode assembly strip is disposed over the outer surface of the first flexible polymeric tube; and a second flexible polymeric tube having opposed open ends defining an open lumen therein between and an inner tubular surface and an outer tubular surface, wherein the second flexible polymeric tube is disposed over portions of the electrode assembly strip not having the exposed electrodes; wherein the electrode assembly strip, the first flexible polymeric tube and the second flexible polymeric tube are compressingly and thermally bonded to each other to define a flexible electrode assembly strip; and wherein the electrode assembly strip has a thickness from about 0.0005 inches to about 0.008 inches.