Catheters; Balloon catheters; Contrast catheters; Blood collection catheters; Microcatheters; Penetration catheters; Thrombus suction catheters; Imaging catheters; Catheters and parts and fittings therefor, namely, sheath introducers; Medical guidewires; Medical devices to treat intravascular sites, namely, medical coils; Medical devices to treat intravascular sites, namely, medical embolic coils; Medical devices to treat intravascular sites, namely, intravascular embolic coil; Medical devices to treat intravascular sites, namely, cerebral aneurysm embolic coils; Embolization instruments in the nature of medical devices to treat intravascular sites; Stents; Vascular hemostasis devices for closing wounds, namely, hemostasis bands; Hemostatic devices in the nature of vascular hemostasis devices for closing wounds; Intracranial balloon catheters; Intracranial guiding catheters; Guiding catheters for coronary arteries; Artificial blood vessel with stents in the nature of artificial vascular grafts; Endoscopic equipment for medical purposes, namely, sheaths for introducing or operating endoscope into the ureter or urethra; Ureteral stents; Inflation devices for balloon catheters; Y connectors for catheters