Patent ID: 9226854
Filing Date: 2016-01-05
CPC Classification: A61B,A61F

Claim Text:
1. An instrument comprising: a handle having a handle distal end and a handle proximal end; an actuation structure of the handle; 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; a piston tube having a piston tube distal end and a piston tube proximal end, the piston tube distal end fixed to a portion of 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; a nosecone fixation mechanism configured to fix the inner nosecone within the outer nosecone; a housing tube having a housing tube distal end and a housing tube proximal end, the housing tube proximal end disposed within the inner nosecone wherein the housing tube distal end extends out from the inner nosecone distal end and wherein the distance the inner nosecone distal end extends from the outer nosecone distal end is adjustable to vary an amount of compression of the actuation structure configured to curve the housing tube to a particular curved position; a first housing tube portion of the housing tube, the first housing tube portion having a first stiffness; a second housing tube portion of the housing tube, the second housing tube portion having a second stiffness wherein the second stiffness is greater than the first stiffness; an optic fiber sleeve having an optic fiber sleeve distal end, an optic fiber sleeve proximal end, and an optic fiber sleeve flexible portion, the optic fiber sleeve disposed in the handle, an optic fiber sleeve housing of the handle, and the housing tube wherein the optic fiber sleeve is fixed in a position relative to the handle within the optic fiber sleeve housing, the optic fiber sleeve flexible portion is adjacent to the first housing tube portion, and the optic fiber sleeve distal end is fixed to an inner portion of the housing tube; and an optic fiber having an optic fiber distal end and an optic fiber proximal end, the optic fiber disposed in an inner bore of the handle, the optic fiber sleeve, and the housing tube wherein the optic fiber distal end extends out from the optic fiber sleeve distal end and the optic fiber distal end is adjacent to the housing tube distal end and wherein the optic fiber is fixed within the housing tube.