| 主权项 |
1. An end-effector for a medical device, the end-effector comprising:
a cauterization tool; and a retracting member having:
a proximal end,a distal end,a plurality of legs extending from the proximal end to the distal end,a central longitudinal axis extending through a radial center of the retracting member, the retracting member being movable between a radially collapsed configuration and a radially expanded configuration,at least one barb, wire, or hook extending from a respective leg of the plurality of legs toward the central longitudinal axis, the at least one barb, wire, or hook being configured to grasp dissected tissue when the retracting member is in the radially compressed configuration, andone or more first projections extending radially outward from one or more of the plurality of legs and in a direction away from the central longitudinal axis, wherein each of the one or more first projections is movable relative to the leg from which it extends, each of the plurality of legs includes a proximal end and a distal end, and at least one of the proximal ends and the distal ends of the plurality legs are joined together, the plurality of legs are configured to transition between the radially collapsed configuration and the radially expanded configuration, and the cauterization tool is movable within a volume radially inward of all of the plurality of legs when the plurality of legs are in the radially expanded configuration. |
