Patent ID: 11864792
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 11:
12. A surgical cannula assembly, comprising:
a cannula housing;
a cannula member defining a longitudinal axis, and a longitudinal lumen configured to permit passage of a surgical object;
a fixation collar assembly supported on the cannula member and including a lock member that has a fixed profile, the lock member positioned to slide in a direction transverse to the longitudinal axis of the cannula member and relative to the fixation collar assembly to selectively secure the position of the fixation collar assembly relative to the cannula member;
a conduit;
a fluid port in fluid communication with the conduit and configured for coupling to a source of inflation fluid; and
an outer sleeve coaxially mounted about the cannula member and positioned to compress the conduit within the longitudinal groove, the outer sleeve having an expandable balloon segment in fluid communication with the conduit, the expandable balloon segment configured to transition from an initial unexpanded condition to an at least partially expanded condition upon passage of inflation fluid from the fluid port, through the conduit and within an internal volume of the expandable balloon segment.