Apparatus for center twisting wires

An apparatus configured to twist a first wire about a second wire, comprising:

• a securing mechanism configured to secure ends of the first wire and the second wire, wherein the first wire is configured to be arranged parallel to the second wire along a longitudinal axis;
• a gripping mechanism configured to grip central portions of the first and second wires such that inner surfaces of the central portions of the first and second wires are in contact with one another, wherein the gripping mechanism defines a U-shaped groove configured to receive and grip the central portions of the first and second wires and wherein the U-shaped groove is defined by an inflatable U-shaped bladder configured to receive and grip the central portions of the first and second wires;
• and
• a rotating mechanism configured to rotate the gripping mechanism, thereby twisting the first and second wires about one another.