Patent ID: 7766934

Claim:
An embolic protection device for capturing emboli, the device comprising: a set of wires, a section of which is arranged as struts defining a basket with a distal end and a proximal end, the basket having an expanded state and a collapsed state, the set of wires including a spiraled section that defines a hollow channel extending from the proximal end of the basket to a proximal end of the spiraled section; a core wire with a distal end coupled to the distal end of the basket, the core wire extending from the distal end of the basket through the hollow channel to a proximal end of the core wire that extends beyond the proximal end of the spiraled section; a filter bag with a lip attached to the struts only at attachments located on the struts generally where the basket achieves its maximum diameter when the basket is in the expanded state for capturing emboli, wherein movement of the core wire in the proximal direction relative to the spiraled section causes the basket, and hence the filter bag, to open to the expanded state, and wherein movement of the core wire in the distal direction relative to the spiraled section causes the basket, and hence to the filter bag, to close to the collapsed state; and a catheter including a tubular body defining an inner lumen configured to slide over the spiraled section and the struts for collapse and retrieval of the device.