Methods and devices for providing access into a body cavity

摘要

A surgical access device (10), comprising a retractor (18) having a working channel (18a) extending therethrough for forming a pathway through tissue into a body cavity; and a housing (12) having a plurality of sealing ports (22a,22b,22c) configured to releasably mate to the retractor (18) in only one predetermined motivational orientation; and wherein the housing (12) has a plurality of mating elements (46a,46b,46c) that are configured to releasably engage the retractor (18) to mate the housing to the retractor (18), and wherein at least one (46c) of the plurality of mating elements differs from another one of the plurality of mating elements.