Patent ID: 8317819

Claim:
A collapsible medical device comprising: a mandrel having a distal end and a stop spaced proximally of the distal end, a proximal length of the mandrel extending proximally of the stop and a distal length of the mandrel extending distally of the stop; and a functional element having a radially expandable body and having a proximal slider and a distal slider, the proximal slider being slidably carried along the proximal length of the mandrel and the distal slider being slidably carried along the distal length of the mandrel, the proximal and distal sliders being slidable along the mandrel independently of one another such that the distance between the proximal slider and distal slider can be varied to effect different configurations of the functional element, wherein translation of the functional element is restricted on the mandrel proximally by the distal slider abutting against the stop, and distally by the proximal slider abutting against the stop.