US Patent 10265085 System and device for engulfing thrombi

A system for removing a thrombus from a blood vessel includes a stent retriever, a catheter configured to receive the stent retriever in a collapsed configuration, wherein the stent retriever is movable relative to the catheter, a sheath having a tubular body and defining a distal opening and a proximal opening, and a wire coupled to the stent retriever for positioning the stent retriever. The wire extends through the proximal opening and the distal opening of the sheath. The stent retriever is moveable relative to the sheath, and the distal opening of the sheath is sized to allow the stent retriever to be withdrawn into the sheath without substantially compressing the stent retriever.