A transformable catheter includes a sheath having a length which is a substantial
fraction of the entire length of the transformable catheter and a bore therethrough.
A preformed inner catheter having a complex curve formed into the distal end thereof
is disposed in the sheath bore. By axially moving the inner catheter with respect
to the sheath, various tip shapes may be achieved. At least one wire runs from
the proximal end of the sheath to the vicinity of the distal end of the sheath
to selectively deflect the distal tip of the sheath as desired by the user to assist
in reformation and transformation of the tip of the catheter. By suitable manipulation
of the wire and of the inner catheter with respect to the sheath, the shape of
the exposed portion of the distal end of the inner catheter may be transformed
to any of a variety of shapes.
