A medical device , comprising: an elongate sheath having a proximal end , a distal end , and a lumen extending therebetween, wherein at least a portion of an actuating member is slidably disposed within the lumen , wherein a distal portion of the actuating member is operably coupled to an end-effector , and wherein a handle is disposed at the proximal end of the elongate sheath , and wherein the handle comprises: an elongate body portion defining a central bore therethrough, wherein the central bore includes a proximal opening, wherein a distal portion of the elongate body portion is operably coupled to the elongate sheath ; and an actuator operably coupled to the actuating member and slidably disposed within the central bore of the elongate body portion, wherein the actuator includes a generally planar surface and an elongate tubular structure depending therefrom and configured to be received within the central bore , wherein the actuating member is configured to be received within the elongate tubular structure , wherein the actuator is configured to transition between a first longitudinal position relative to the elongate body portion and a second longitudinal position different from the first longitudinal position, wherein the actuator is fixedly coupled to an adjustable body including threads on an outer surface thereof and wherein a surface of the central bore includes threads for mating with the threads on the adjustable body . an elongate sheath having a proximal end , a distal end , and a lumen extending therebetween, wherein at least a portion of an actuating member is slidably disposed within the lumen , wherein a distal portion of the actuating member is operably coupled to an end-effector , and wherein a handle is disposed at the proximal end of the elongate sheath , and wherein the handle comprises: an elongate body portion defining a central bore therethrough, wherein the central bore includes a proximal opening, wherein a distal portion of the elongate body portion is operably coupled to the elongate sheath ; and an actuator operably coupled to the actuating member and slidably disposed within the central bore of the elongate body portion, wherein the actuator includes a generally planar surface and an elongate tubular structure depending therefrom and configured to be received within the central bore , wherein the actuating member is configured to be received within the elongate tubular structure , wherein the actuator is configured to transition between a first longitudinal position relative to the elongate body portion and a second longitudinal position different from the first longitudinal position, an elongate body portion defining a central bore therethrough, wherein the central bore includes a proximal opening, wherein a distal portion of the elongate body portion is operably coupled to the elongate sheath ; and an actuator operably coupled to the actuating member and slidably disposed within the central bore of the elongate body portion, wherein the actuator includes a generally planar surface and an elongate tubular structure depending therefrom and configured to be received within the central bore , wherein the actuating member is configured to be received within the elongate tubular structure , wherein the actuator is configured to transition between a first longitudinal position relative to the elongate body portion and a second longitudinal position different from the first longitudinal position, wherein the actuator is fixedly coupled to an adjustable body including threads on an outer surface thereof and wherein a surface of the central bore includes threads for mating with the threads on the adjustable body . <EOS>