Steerable suction/irrigation system for single-port operation

A medical device, comprising:

• a cannula having a distal end and a proximal end opposite the distal end;
• a housing connected to the proximal end of the cannula;
• and
• a manipulator connected to the housing;
• wherein the cannula includes a rigid component that extends from the proximal end of the cannula to an intermediate location between the proximal end of the cannula and the distal end of the cannula;
• the cannula comprises a flexible component that extends from the proximal end of the cannula to the distal end of the cannula;
• the cannula includes a rigid section in which the flexible component is inside the rigid component and a flexible section in which the flexible component is outside the rigid component;
• the manipulator is connected to the flexible component in a manner that permits selective bending of the flexible section relative to the rigid section in response to user input at the manipulator;
• and
• the flexible component includes a channel that is configured to convey suction and/or irrigation at the distal end of the cannula.