Magnetically steerable device for use inside of a mammalian body

A steerable device for use inside of a mammalian body, comprising:

• a flexible elongated element, elongated along a device longitudinal axis and configured to enter soft tissue of the mammalian body;
• a magnetic element placed in a distal end portion of the elongated element and configured for allowing steering of the elongated element by way of an external magnetic field, a proximal end of the elongated element extending out of the mammalian body in use,
• wherein a structured section arranged proximal to the magnetic element and comprising a plurality of elongated protrusions formed on an outer surface of the elongated element and having each a protrusion longitudinal axis, each protrusion longitudinal axis forming an angle with the device longitudinal axis, the plurality of elongated protrusions forming a plurality of angles with the device longitudinal axis, wherein each angle of the plurality of angles is less than 90°, as measured in the clockwise direction from the device longitudinal axis oriented in the direction from proximal to distal, such that rotation of the elongated element in the clockwise direction around the device longitudinal axis effects a movement of advancement of the elongated element relative to the soft tissue along the device longitudinal axis