| 主权项 |
1. A method of accessing an internal body cavity, comprising:
positioning a surgical access port in an internal body cavity, the surgical access port including a cylindrical member having proximal and distal ends and defining a longitudinal axis, at least two lumens extending through the cylindrical member along the longitudinal axis, at least one cavity defined in the cylindrical member and positioned radially inwardly of the at least two lumens, and at least one source of inflation fluid coupled to the at least one cavity, the surgical access port having a first state with a corresponding first state diameter defined by the cylindrical member with the at least one cavity in an unexpanded state and a second state defined by the surgical access port with a corresponding second state diameter defined by the cylindrical member with the at least one cavity in an expanded state; supplying inflation fluid from the at least one source of inflation fluid to the at least one cavity such that the surgical access port expands from the first state to the second state, the second state diameter different than the first state diameter, and wherein in the first state, at least a portion of the at least one cavity extends linearly outward between two lumens of the at least two lumens, and in the second state, the two lumens are positioned at a greater radial distance from each other as compared to a radial distance therebetween in the first state; and accessing the internal body cavity via the surgical access port. |
