The SeQureTM Snare System consists of a snare, a catheter, a loader and a torquer. The snare is constructed of a nitinol shaft and a loop with the plane of the loop perpendicular to the nitinol shaft. The nitinol loop is covered with a tungsten coil which is coated by laminated titanium and its nitride to enhance radiopaque. The pre-formed snare loop can be introduced through catheter without risk of permanent deformiation because of super-elasticity of nitinol material. The catheter consists of luer connector and PE tubing with a radiopaque markband at its distal tip to enhance the visibility during the operation. The snare is pre-assembled with the loader and the torque, and then packaged together with corresponding catheter.
A sterile, flexible, end- and/or side-hole tube with a long snaring device (e.g., a wire loop or noose) inserted through its lumen, designed to be introduced into a blood vessel or similar structure to manually retrieve or manipulate a foreign body. It is typically available in two forms: 1) the loop emerges from the distal tip of the catheter while both free ends of the wire emerge from the proximal end; and 2) the end of the wire is attached to the distal end of the catheter while the free end is passed through the lumen to emerge at the proximal end. The wire is usually made of a high-strength, stiff metal [e.g., nickel-titanium alloy (Nitinol)].