Devices, systems, and methods that utilize a mechanical structure, such as a lever arm or a flexure mechanism, and an electrically energizable member, such as an actuator, to impart motion to an optical fiber positioned within an imaging probe are provided. The supporting beam line comprises a conductor line with U-shaped cross section inside which a metal is filled. One of the jaws includes a pair of longitudinal projections at a first end of the jaw and configured to frictionally engage corresponding slots in a first end the buttress material.