A tubular guidewire assembly having a distal occlusive device and an
extended crimpable section proximate a proximal end that is adapted to
connect to a gas inflation/evacuation system. The extended crimpable
section can be selectively sealed at one of a plurality of separate
locations to form an airtight seal of the tubular guidewire assembly.
Each time a deflation of the occlusive device is desired in order to
reestablish blood flow to a vessel downstream of the occlusive device,
the extended crimpable section preferably is cut distal to the location
of the last seal to quickly deflate the occlusive device.