Delivery system with a torqueable catheter shaft

A balloon catheter comprising:

• an outer shaft having an elongate tubular body extending from a proximal end to a distal end and defining a central lumen therethrough, the elongate tubular body having a proximal portion, a distal portion, and an intermediate portion extending between the proximal portion and the distal portion;
• a balloon attached to the distal end of the elongate tubular body, the balloon being expandable from a first diameter to a second diameter greater than the first diameter;
• and
• an inflation lumen, the inflation lumen being in fluid communication with an interior of the balloon,
• wherein the proximal portion includes a first polymer having a first stiffness and a first portion of a tubular braid component extending within the first polymer, and
• wherein the intermediate portion includes a second polymer having a second stiffness and a second portion of the tubular braid component extending within the second polymer, and
• wherein the distal portion includes a third polymer having a third stiffness, a third portion of the tubular braid component extending within the third polymer, and a hypotube extending within the third polymer, the hypotube being configured for elastic deformation and having a proximal end, a distal end, a length between the proximal end and the distal end, and a sidewall cut with a pattern, and
• wherein along an overlap segment of the distal portion, the third portion of the tubular braid component overlaps the length of the hypotube or the length of the hypotube overlaps the third portion of the tubular braid component, and
• wherein the second stiffness is less than the first stiffness and the third stiffness is less than the second stiffness.