| 摘要 |
<p>An expandable multi-functional instrument (10) for performing various diverse operative procedures, includes an elongate distensible member (18) having a distal end (26) for being introduced in an anatomical cavity via a relatively small size anatomical opening, and being movable from a non-distended position facilitating introduction through the anatomical opening to a distended position wherein the cross-sectional size of the distensible member is increased, and a plurality of collars (20) disposed on portions of the distensible member (18) for constraining movement of the distensible member portions to the distended position. The collars (20) are movably mounted on the distensible member (18) for adjusting the location and size of unconstrained distensible portions (34) of the distensible member (18) adjacent the collars (20). A method of performing an operative procedure in an anatomical cavity includes the steps of introducing a distal end of an elongate distensible member in the anatomical cavity through a relatively small size anatomical opening and moving the distensible member from a non-expanded position to an expanded position.</p> |
