| 摘要 |
PROBLEM TO BE SOLVED: To provide a system for providing surgical access.SOLUTION: One embodiment is directed to a system for providing surgical access across a wall of a tissue structure, the system comprising: a delivery member (14); a first helical member (66); an anchor member (54) removably coupled to the distal end of the helical member; and a suture member (52) coupled distally to a portion of the anchor member and extending proximally to a position where at least a portion of it may be freely manipulated by an operator. Upon rotation of the delivery member in a first direction, the first helical member and coupled anchor member are advanced across at least a portion of the wall of the tissue structure, thereby pulling along the distal portion of the suture member in a deployed suture pattern which remains coupled to the anchor member. The deployed suture pattern is substantially helically shaped, having more than about one and less than about three helical loops.SELECTED DRAWING: Figure 4C |
