Method of making a bipolar electrode structure

Claim 1

The combination with a fetal monitoring device, having a flexible guide tube dimensioned for insertion through the vagina and cervix of a woman in labor; electrode means disposed initially at the inner end of the guide tube for attachment and electrical contact with a fetus upon rotation thereof; a flexible drive tube slidable and rotatable in the guide tube and removably attachable to the electrode means to effect rotation thereof; and conductors extending from the electrode means through and beyond the drive and guide tubes for connection to an electrical monitoring apparatus, of a drive and clamp means disposed at the outer ends of the guide and drive tubes, and comprising: a. a tubular drive means secured to the flexible drive tube; and receive the conductors extending therethrough; b. a first conductor clamping element fixed to the tubular drive means, extending laterally therefrom and having a perforation aligned with the drive means to receive the conductors; c. a second conductor clamping element also extending laterally from the drive means, overlying the first clamping element and perforated to receive the conductors; d. and yieldable means tending to cause relative offsetting movement of the perforations thereby to clamp the conductors.