A filter device is adapted to function as a guidewire, an exchange guidewire,
and
provide embolic protection during a procedure. The filter device includes a filter
assembly that is either integral with or coupled to a guide member. The filter
assembly includes a plurality of struts that expand outwardly to deploy a filter
that collects or captures material flowing along the blood vessel within which
the filter device is deployed. The plurality of struts are constrained by a restraining
member or mechanism that prevents the plurality of struts from expanding or extending
outwardly to deploy the filter. Cooperating with the restraining member or mechanism
is an actuating assembly that is adapted to release the restraining member or mechanism
and enable the filter to be deployed from the guide member. A capture catheter
that cooperates with the filter device and substantially surrounds the filter during
removal of the filter device.