Surgical hand access apparatus

摘要

A surgical access apparatus includes a liner base and an access housing for positioning outside the body. The liner base includes an inner member adapted for insertion through an opening within body tissue for positioning within the body; a sleeve member connected to the inner member and dimensioned to extend from the inner member through the opening within the body tissue, and a plurality of tensioning elements connected to the inner member and associated with the sleeve member to impart a tensioning effect on the sleeve member. The access housing includes a first element and a second element. The second element is operatively connected to the tensioning elements and adapted for rotational movement relative to the first member to cause the tensioning elements to displace the inner member toward the access housing and to cause the sleeve member to engage and retract tissue defining the opening within the body.

主权项

1. A surgical access apparatus comprising:
a liner base including:
a lower ring adapted for insertion through an opening within body tissue;an upper ring adapted to be positioned outside the body tissue; anda sleeve defining a passageway having a first diameter, the sleeve interconnecting the lower and upper rings, at least a portion of the liner base adapted for positioning within the opening in the body tissue to line the opening and retract the body tissue defining the opening, the liner base configured and dimensioned to displace the lower ring towards the upper ring; an access housing operatively coupled with the liner base such that rotation of the access housing about the liner base causes retraction of the opening within the body tissue and transitions the passageway of the sleeve to a second diameter larger than the first diameter, while the sleeve remains rotationally stationary; and a seal, at least partially supported by the access housing and providing access to the opening in the body tissue.