A catheter has a handle and a guide tube enclosing an interior bore. The guide tube has a proximal end and a distal end. A friction sleeve joins the proximal end of the guide tube to the handle. The friction sleeve extends from the handle and grips a portion of the guide tube beyond the handle. The friction...http://www.google.es/patents/US5328467?utm_source=gb-gplus-sharePatente US5328467 - Catheter having a torque transmitting sleeve
