Steerable device and system

A steerable guidewire having an elongated body defining a longitudinally-arranged lumen, said steerable guidewire comprising:

• a) a proximal end portion;
• b) a distal end portion comprising a bendable portion and a tip, said bendable portion comprising a reinforcement structure located on a first lateral side and a flexible, stress relief portion located on a second lateral side of said bendable portion opposite to said first lateral side,
• c) a pull wire connected to said bendable portion and extending therefrom up to said proximal end portion along said lumen;
• and
• d) an actuation region, being longitudinally elastically deformable, is adapted to impart a tension force on the pull wire resulting in a distally-directed force to the bendable portion and causing the bendable region to bend or curve away from a longitudinal axis of the steerable guidewire,
• wherein
• i) said pull wire is affixed to said proximal end portion and
• ii) the actuation region is located along the elongated body, wherein
• the elongated body and the bendable portion are formed by a solid tubular body and the bendable portion of the solid tubular body has a plurality of cutouts in the stress relief portion, wherein the elongated body is made of the same material as the reinforcement structure and the reinforcement structure is an integral part of the elongated body, and wherein the cutouts have a triangular, rounded, or rectangular appearance.