Patent ID: 8610022

Claim:
A catheter for use in a system for monitoring the physiological state of hollow viscous organs, said catheter comprising: a. a length of tubing suitable for insertion into hollow viscous organs; b. a plurality of electrodes disposed proximate a distal end of the tubing; and c. a plurality of electrical leads respectively electrically connected to the plurality of electrodes and extending through the tubing to a proximal end thereof; wherein: d. the electrodes each comprise: a central portion having a diameter generally equal to an outer diameter of the tubing; first and second extensions attached to a top and a bottom of the central portion, respectively, said first and second extensions having a diameter smaller than the diameter of the central portion; and an axial bore extending through the central portion and first and second extensions; and e. the electrodes are spaced apart from one another by spacers positioned over the extensions and abutting the central portions.