Abstract: A guiding catheter introducer assembly that includes a catheter introducer sheath, with a hemostasis valve, attached or molded to a reinforced guiding catheter tubular body into a single assembly. The reinforced guiding catheter tubular body is made of braided wire construction. The catheter introducer sheath assembly includes a side port at which point a multiport stop cock is attached or molded, to facilitate the insertion and withdrawal of fluids.

Abstract: The guidewire comprises: a tip section including a core wire including a first tapered portion, a reduced-in-diameter portion, a second tapered portion and a rod end portion, two or more highly radiopaque annular marker bands being received on the core wire between the first tapered portion and the rod end portion and precisely spaced apart on the core wire by one or more plastic tubing segments, and an outer sleeve covering said marker bands and tubing segments.

Abstract: The guidewire assembly includes a distal tip section comprising a core wire, a mushroom shaped head fixed to a distal end of the core wire, and a coiled radiopaque wire having a distal end portion fused to the head and a proximal necked down portion which necks down to proximal end coils forming a proximal end of the coiled radiopaque wire. The proximal end coils are received on a portion of the core wire and fixed thereto by a flexible material.

Abstract: The cryo-ablation catheter comprises a generally tubular body having a proximal end and a distal end. The distal end includes a hollow closed head made of a thermally conductive material. A pressure line is received in and extends in the catheter from a location near the proximal end to a location near the head. The catheter includes a discharge channel extending from the head to the proximal end. The pressure line is made of a synthetic material which has, compared to metal, a low modulus of elasticity and a high thermal resistance coefficient.