| 摘要 |
An anchored working channel includes an elongated shaft with a proximal end and a distal end, and at least one inflatable balloon positioned at the distal end of the elongated shaft and having an outer wall having an outer surface for contacting surrounding tissue, wherein the elongated shaft has a first lumen through which fluid is supplied to inflate the at least one inflatable balloon such that the balloon anchors the shaft to surrounding tissue, wherein the elongated shaft has a second lumen that accommodates at least one medical instrument and/or device inserted therein, and wherein the outer surface of the at least one inflatable balloon comprises a textured surface for preventing slippage of the outer surface on surrounding tissue. |
