A balloon trocar includes a housing and a cannula assembly. The housing includes an inflation port. The housing defines a cavity configured to receive a seal therein. The cannula assembly includes a tubular member extending from the housing, an inflatable balloon secured to the tubular member, and a pin. The tubular member defines a lumen, a fluid channel, and an actuation channel. The lumen is in communication with the cavity of the housing. The lumen is configured to receive a surgical instrument therethrough. The fluid channel provides fluid communication between the inflatable balloon and the inflation port. The actuation channel is configured to slidably receive the pin therein. The pin includes a tip configured to pierce the inflatable balloon to deflate the inflatable balloon.
