Embolic protection device with a filter bag that disengages from a basket

An embolic protection device for capturing emboli during treatment of a stenotic lesion in a body vessel, the device comprising:

• a set of wires including a first section arranged as struts that define a basket with a distal end and a proximal end, the struts at the distal end of the basket being arranged to define an opening, the basket having a pre-set collapsed state and being configured to move to an expanded state;
• a core wire with a distal end and a proximal end, the core wire being able to reciprocate through the opening at the distal end of the basket;
• and
• a filter bag attached only at the distal end of the core wire, the filter bag having a pre-set collapsed state and being configured to move to an expanded state,
• the filter bag being located distally to the distal end of the basket when the filter bag and the basket are in their pre-set collapsed state, movement of the core wire in the proximal direction relative to the basket causing the filter bag to be disposed over the basket, and further movement of the core wire in the proximal direction causing the basket and the filter bag to open to the expanded state, the filter bag being disposed over substantially the entire basket when the filter bag and the basket are in their expanded state for capturing emboli within the basket, movement of the core wire in the distal direction relative to the basket causing the basket and the filter bag to close to their pre-set collapsed state.