Patent ID: 8740930

Claim:
A device for collecting embolic debris in a vessel in a patient, comprising: a self-expanding filter having a tubular body that includes openings therein for receiving the embolic debris there through and for allowing perfusion, the tubular body having a generally circular cross-section and an interior surface that defines an interior volume for collecting the embolic debris, wherein when the filter is in a delivery configuration the tubular body is substantially cylindrical and wherein when the filter is in a deployed configuration the tubular body coils to form a series of one or more loops for collecting the embolic debris within respective interior volumes thereof, whereby the generally circular cross-section of the tubular body is maintained in each loop such that a portion of the interior volume of the tubular body defines the respective interior volume of each loop thereof, and such that an outermost surface of the one or more loops defines an abluminal surface of the coiled tubular body having an expanded outer diameter for conforming to an inner wall of the vessel and an innermost surface of the one or more loops defines an adluminal surface of the coiled tubular body defining a longitudinal opening through the filter.