Method and structure for selectively locking portions of a seal assembly

摘要

A surgical access device that includes a seal assembly. The seal assembly includes an upper housing portion having a first seal and a lower housing portion including a second seal. The upper housing portion is rotatably connectable to the lower housing portion. The surgical access device also includes a rotation prevention mechanism configured to prevent inadvertent relative rotation of, and disconnection of, the upper housing portion and the lower housing portion. The rotation prevention mechanism is further configured to be selectively actuated by a user, such that, when actuated, the upper housing portion is selectively rotatable relative to, and disconnectable from, the lower housing portion.

主权项

1. A surgical access device comprising:
a sleeve defining a longitudinal axis and having an internal longitudinal passage, and proximal and distal ends, the sleeve dimensioned for passage through tissue; a seal assembly mountable adjacent the proximal end of the sleeve, the seal assembly including an upper housing having a seal and a lower housing distal of the upper housing and having a valve, the upper housing being releasably connectable to the lower housing; a first lock component depending radially outwardly from an outer peripheral surface of the lower housing, the first lock component configured to move in at least a longitudinal direction between a first position and a second position; and a second lock component depending radially outwardly from an outer peripheral surface of the upper housing, the second lock component dimensioned to be engageable with the first lock component when in the first position of the first lock component to prevent rotational movement of the upper housing in a first rotational direction relative to the lower housing, and dimensioned to release the first lock component when in the second position to permit rotational movement of the upper housing in the first rotational direction relative to the lower housing to thereby permit removal of the upper housing relative to the lower housing.