Steerable medical device, and use of a pull wire ring therein

A steerable medical device, comprising:

• a device body, said device body defining a main lumen,
• at least one pull wire extending from a proximal end portion of the device towards a distal end portion of the device, and
• a pull wire ring located in the distal end portion of the device, said pull wire being attached to the pull wire ring and adapted to impart a bending movement to the device,
• wherein the pull wire ring comprises:
• a first end face and a second end face opposite of the first end face,
• an outer peripheral surface and an inner peripheral surface respectively extending between the first and second end face,
• fixation means for attaching at least one pull wire to the ring, characterized in
• the ring further comprising at least one eccentric recess extending from the first end face to the second end face, said recess defining a passage for at least one ancillary element selected from the group of electric lines, data cables and fiber optics;
• and
• the steerable device comprising at least one ancillary element extending through the eccentric recess of the pull wire ring further towards the distal end of the device.