Expandable surgical access port

An expandable surgical access port comprising:

• a port body in fluid communication with a source of inflation fluid, the port body including inner and outer walls defining a plurality of lumens extending through the port body;
• a plug having:
• a first portion attached to a proximal portion of the port body, the first portion having a first orifice and an inflation port,
• an arm, and
• a second portion flexibly coupled to the first portion via the arm and including a of plurality of posts a first post of the plurality of posts insertable through the first orifice;
• and
• the expanded configuration of the port body defining a fluid-tight boundary in a first lumen of the plurality of lumens and an elongate object placed into the first lumen.

A method of accessing a surgical site comprising:

• inserting a port body of an expandable access port through an opening in tissue, the port body including:
• inner and outer walls defining a plurality of lumens, and
• a plug having a first portion with a first orifice extending through the plug, a second portion having a plurality of posts, a first post of the plurality of posts insertable into the first orifice, and an arm portion flexibly coupling the first and second portions;
• introducing an inflation fluid into the port body through an inflation port on the first portion of the plug thus transitioning the port body to an expanded configuration, the expanded configuration of the port body forming a fluid-tight boundary with the opening;
• withdrawing the first post from the first orifice by separating the second portion of the plug from the first portion of the plug;
• and
• inserting a first surgical instrument through a first lumen of the plurality of lumens defined through the port body, the first lumen of the plurality of lumens forming a fluid-tight seal with the first surgical instrument.