#$%^&*AU2018201978A120181011.pdf#####CANNULA ASSEMBLY ABSTRACT A surgical cannula assembly (10), comprising: an elongate cannula member (14) defining a longitudinal axis and having proximal and distal ends, the cannula member (14) including a plurality of longitudinal ribs (28) extending along the longitudinal axis, adjacent longitudinal ribs (28) defining a longitudinal channel (30) therebetween a fluid port (38) mounted adjacent the proximal end of the cannula member (14), the fluid port (38) configured for coupling to a source of inflation fluids a conduit (36) positioned within at least one longitudinal channel (30) of the cannula member, the conduit (36) in fluid communication with the fluid port (38) and an expandable balloon (20) mounted adjacent the distal end of the cannula member (14) and in fluid communication with the conduit (36), the expandable balloon (20) configured to transition from an initial unexpanded condition to an at least partially expanded condition upon passage and entry of inflation fluids through the conduit and within an internal volume of the expandable balloon (20).1/16 12 738 10 5 5 20 -.-- 14 71-7102 FIG.1 I
