Patent ID: 7189215

Claim:
A catheter comprising: a support wire shaft having a distal end and a proximal end and terminating distally in a wound coil portion; the wound coil portion having a metal coil tip formed at a distal most end of the wound coil portion; a jacket surrounding at least a portion of the wound coil portion of the support wire shaft; the metal coil tip having an end cap such that the support wire shaft is terminated at the end cap and a core wire inserted into the support wire shaft cannot be extended distally beyond the distal end of the support wire shaft; a balloon mounted on a distal portion of the support wire shaft; an inflation shaft fluidly coupled to the balloon; and a core wire, wherein the core wire is interchangeably insertable within the support wire shaft when the catheter is within a body lumen; and wherein the wound coil portion of the support wire shaft extends proximally of the balloon.