Ocular surgery may be performed by a variety of systems, processes, and techniques. In certain implementations, systems and processes for ocular surgery may include a pumping portion adapted to be coupled to a drive portion of a pump unit, the pumping portion comprising an outer shell defining an interior channel, an elastomeric pump segment disposed within the outer shell, the elastomeric pump segment defining a cylindrical cavity and comprising integrated conduits in fluid communication with the interior channel, a cap disposed at a distal end of the cylindrical cavity, the cap comprising a recess adapted to receive a distal end of a rotor of the drive portion of the pump unit and a fluid port adapted to expel fluid drawn into the integrated conduits through the interior channel.
