Importance

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Abstract

An embolic filtering system includes a guide wire, a filter device disposed on the guide wire, a sheath adapted to maintain the filter device in an unexpanded position and a torque device having a lumen for receiving the guide wire and a locking mechanism for locking the torque device to the guide wire. The torque device may include a side port adapted to receive the proximal end of the sheath to allow a portion of the guide wire to shear the sheath from the guide wire through retraction of the sheath through the side port. The torque device may include an extension arm having a distal opening adapted to receive both the guide wire and the sheath. A second lumen may be used to allow a portion of the guide wire to shear the sheath away from the guide wire through retraction of the sheath through the second lumen.

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First Claim