A cannula assembly comprising: a cannula having a proximal end , a distal end opposite the proximal end , and a lumen extending from the proximal end to the distal end along a longitudinal axis (L), the lumen configured to receive a surgical instrument therein, the cannula comprising: a generally tubular cannula body having an exterior surface and a first outer diameter (D1); and an annular recess formed in the exterior surface of the cannula body adjacent the distal end of the cannula , the annular recess transverse to the longitudinal axis (L), the annular recess having a second outer diameter (D2) smaller than the first outer diameter (D1) of the cannula body , and the annular recess having a textured surface adapted to receive an adhesive; and a sleeve having a proximal end and a distal end , the sleeve disposed around the cannula from adjacent the proximal end of the cannula to the annular recess , the sleeve comprising: an elongate tubular body ; and a balloon positioned distal the elongate tubular body ; wherein the annular recess extends along the cannula a first length relative to the longitudinal axis; and the sleeve comprises a bonding segment distal the balloon , the bonding segment extending into the recess a second length (l2) relative to the longitudinal axis, the second length less than the first length. a cannula having a proximal end , a distal end opposite the proximal end , and a lumen extending from the proximal end to the distal end along a longitudinal axis (L), the lumen configured to receive a surgical instrument therein, the cannula comprising: a generally tubular cannula body having an exterior surface and a first outer diameter (D1); and an annular recess formed in the exterior surface of the cannula body adjacent the distal end of the cannula , the annular recess transverse to the longitudinal axis (L), the annular recess having a second outer diameter (D2) smaller than the first outer diameter (D1) of the cannula body , and the annular recess having a textured surface adapted to receive an adhesive; and a generally tubular cannula body having an exterior surface and a first outer diameter (D1); and an annular recess formed in the exterior surface of the cannula body adjacent the distal end of the cannula , the annular recess transverse to the longitudinal axis (L), the annular recess having a second outer diameter (D2) smaller than the first outer diameter (D1) of the cannula body , and the annular recess having a textured surface adapted to receive an adhesive; and a sleeve having a proximal end and a distal end , the sleeve disposed around the cannula from adjacent the proximal end of the cannula to the annular recess , the sleeve comprising: an elongate tubular body ; and a balloon positioned distal the elongate tubular body ; wherein the annular recess extends along the cannula a first length relative to the longitudinal axis; and the sleeve comprises a bonding segment distal the balloon , the bonding segment extending into the recess a second length (l2) relative to the longitudinal axis, the second length less than the first length. an elongate tubular body ; and a balloon positioned distal the elongate tubular body ; wherein the annular recess extends along the cannula a first length relative to the longitudinal axis; and the sleeve comprises a bonding segment distal the balloon , the bonding segment extending into the recess a second length (l2) relative to the longitudinal axis, the second length less than the first length. <EOS>