Percutaneous Nitinol Stent Extraction Device

A catheter system for extraction of a nitinol stent from inside a blood vessel, the catheter system comprising:

• a multi-lumen tube for insertion into the blood vessel comprising an inflatable end, the inflatable end having at least one expandable balloon and an injectable end, the injectable end having multiple ports, wherein one of the ports is used to infuse fluid through one of the lumens of the multi-lumen tube, the temperature of the infused fluid helping to convert the nitinol stent from austenite state to martensitic state;
• and
• an extraction device, the extraction device being introduced through one of the polls into one of the lumens of the multi-lumen tube, the extraction device comprising a hook, the hook being used to dislodge the nitinol stent from inside the lumen of the blood vessel, wherein the hook is attached to a spring loaded push rod, the spring loaded push rod being used to actuate the hook and a sheath, the sheath being used to transport the dislodged nitinol stent out of the tubular organ.