Steering tool

摘要

A steering tool including an internal tube disposed inside an external tube, the internal and external tubes being arranged for longitudinal axial movement relative to one another, wherein a distal end of the internal tube is fixedly joined to a distal end of the external tube, and at least one of the internal and external tubes is slotted near the distal end thereof, and wherein the longitudinal axial movement causes bending of the distal ends of the tubes.

主权项

1. A steering tool comprising:
an internal tube disposed inside an external tube, said internal and external tubes being arranged for longitudinal axial movement relative to one another, wherein a distal end of said internal tube is fixedly joined to a distal end of said external tube, and wherein one of said tubes is flexible with relatively rigid stiffeners at a distal portion thereof, and wherein the longitudinal axial movement causes bending of the distal ends of said tubes, wherein a length of each of said stiffeners extends longitudinally along said one of said tubes parallel to a longitudinal axis of said one of said tubes and said stiffeners are circumferentially spaced from one another.