Implantable medical device retrieval system, apparatus, and method

An apparatus for retrieving a medical device from a body vessel, the apparatus comprising:

• an elongate tubular sheath having a proximal end and a distal end and defining lumen extending therebetween;
• a double lumen catheter extending through the lumen of the sheath, the double lumen catheter having proximal and distal ends, a first lumen, and a second lumen;
• a balloon catheter extending through the lumen of the sheath alongside the double lumen catheter;
• a first support rod extending within the first lumen of the double lumen catheter;
• a second support rod extending within the second lumen of the double lumen catheter;
• and
• a helical member at least partially exposed from the double lumen catheter and extending between distal ends of the first and second support rods, wherein the helical member spirals around at least a portion of the balloon catheter.

A method for retrieving an implantable medical device from a patient blood vessel, the method comprising:

• delivering a sheath having an inflatable balloon catheter and a radially adjustable retrieval device therein to a blood vessel, wherein the radially adjustable retrieval device includes a first support rod, a second support rod, and a helical member extending between distal ends thereof and surrounding a portion of the inflatable balloon catheter;
• translating the balloon catheter out of the sheath and between an implantable medical device and a wall of the blood vessel;
• inflating the balloon catheter to force the implantable medical device away from the blood vessel wall;
• translating the helical member of the radially adjustable retrieval device at least partially over the balloon catheter and the implantable medical device;
• radially compressing the helical member around the balloon catheter and the implantable medical device;
• and
• retracting the retrieval device, the balloon catheter and the implantable medical device.