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Tryton Side-branch Stent
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Tryton Stent Delivery System
During the Tryton First In Man (FIM) clinical trial the side-branch stent is being evaluated on two distinct delivery systems. The first is a Step Balloon delivery system and the second a Standard Balloon. As its name implies the Step Balloon delivery system has two deployed profiles; a 2.5mm distal profile that deploys the stent portion of the device, and a 3.5mm proximal profile that dilates the main vessel region of the side-branch stent. As a result of this dual profile configuration the ostium of the side branch is flared during stent deployment.
The standard balloon is based on a standard balloon expandable stent delivery system. The balloon is semi-compliant, and has a single deployed profile/diameter.
Both systems are hypo-tube, rapid exchange catheters that allow for 5 French Guiding Catheter compatibility (note: 6 French guiding catheters are required for kissing balloon inflation). These delivery systems employ the same four marker band configuration that denotes the limits of the stent and the location of the transition zone. In addition, both balloons utilize the same semi-compliant balloon material and allow for at least a quarter of a millimeter up-sizing.