US Patent 11278317 Surgical access devices and systems including smoke evacuation

A surgical access system includes an access device and a distal smoke evacuator. The access device includes a proximal rim configured for positioning on an external side of an opening in tissue, a distal rim configured for positioning on an internal side of an opening in tissue, and a body interconnecting the proximal and distal rims. The body is configured to extend through an opening in tissue and defines a passageway extending therethrough for insertion of a surgical instrument through the opening in tissue into an internal surgical site. The distal smoke evacuator is integrated into or coupled to the distal rim. The distal smoke evacuator includes a tube ring adapted to connect to a source of suction to evacuate smoke circumferentially about an internal side of an opening in tissue.