| 摘要 |
<p>An access assembly is provided. The access assembly includes an access member defining a central longitudinal axis and having a longitudinal opening therethrough for reception and passage of surgical instrument, the access member dimensioned for positioning within tissue to provide access to underlying tissue, and first and second seal members mounted to the access member in juxtaposed relation, the first seal member defining an opening therethrough, the second seal member defining an elongated arcuate passage, wherein the first and second seal members are adapted for rotational movement about the central longitudinal axis whereby the opening of the first seal member is axially alignable with the elongated arcuate passage of the second seal member to permit reception and passage of the surgical instrument in substantial sealed relation therewith, the first and second seal members further adapted for relative rotational movement whereby the first seal member is capable of rotating relative to the second seal member during manipulation and traversal of the surgical instrument through the elongated arcuate passage of the second seal member to maintain the substantial sealed relation about the instrument.</p> |
