instruments for use in endoscopic procedures, namely, catheters, guidewires, torque handles, stents, stent delivery apparatus, cannulas, needles, sphinctertomes and forceps; balloon catheters and inflation apparatus; polypectomy snares, baskets and retrievers; biopsy forceps and suction apparatus; retrieval baskets, forceps and loops; cytology and specimen brushes; biliary pumping apparatus; and electrosurgical power cords all sold individually or packaged together as a kit