Patent ID: 7232422
Filing Date: 2007-06-19
Classification: A61M

Abstract:
1. A catheter comprising: an elongated shaft, the shaft having a length and an axis and being formed with a first lumen extending at least partway along an axis parallel to the axis of the shaft, and a second lumen extending at least partway along an axis parallel to the axis of the shaft, the first lumen and second lumen occupying separate regions along the length of the shaft and being offset by a predetermined angular distance, the shaft being further formed with a transition region defining a passage leading from the first lumen to the second lumen, the transition region being offset from a distal end of the shaft such that the second lumen is disposed between the transition region and the distal end; a single pull wire extending through the first lumen, the passage in the transition region, and the second lumen; and means for actuating the pull wire to impart a desired curve to the shaft, wherein the first and second lumens are constructed and located such that the single pull wire can influence the shape of the separate regions that are defined by the first and second lumens.