Adapter seal for laparoscopic cannula.

摘要

An adapter seal (10) adapted to facilitate the use of a small instrument within a laparoscopic cannula. The adapter seal (10) comprises a body portion (18) formed of elastomeric material, and a relatively rigid insertion guide (20) mounted on the body portion. The body portion (18) has an aperture (22) therein adapted to sealingly engage and support the small instrument while permitting movement of the instrument through the aperture. The insertion guide (20) has a wall (24) forming a generally conical passageway for guiding small instruments toward the aperture of the body portion. A tether (28) may be provided for holding the adapter seal (10) adjacent the cannula when the body portion (18) is disconnected from the cannula, and the insertion guide (20) may be color-coded to indicate the size aperture through the body portion (18) of the adapter seal (10). <IMAGE>