| 主权项 |
1. An instrument comprising:
a handle having a handle distal end and a handle proximal end; an actuation structure of the handle, the actuation structure having an actuation ring; a plurality of actuation arms of the actuation structure, each actuation arm of the plurality of actuation arms having at least one extension mechanism; an outer nosecone having an outer nosecone distal end and an outer nosecone proximal end, the outer nosecone proximal end disposed within the actuation ring; a piston tube having a piston tube distal end and a piston tube proximal end, the piston tube distal end disposed within the outer nosecone; an inner nosecone having an inner nosecone distal end and an inner nosecone proximal end, the inner nosecone disposed within the outer nosecone wherein the inner nosecone distal end extends a distance from the outer nosecone distal end; an inner bore of the handle; a piston tube housing of the handle, the piston tube proximal end disposed within the piston tube housing of the handle; a single flexible housing tube having a flexible housing tube distal end and a flexible housing tube proximal end, the flexible housing tube having dimensions configured for performing ophthalmic microsurgical procedures through a cannula; and an optic fiber disposed in the inner bore of the handle, the flexible housing tube, the piston tube, the outer nosecone, and the inner nosecone. |
