Patent ID: 8690884

Claim:
A system for injecting curable material to a delivery site within a bone structure, the system comprising: a guide cannula including a generally straight body longitudinally encompassing and defining a guide cannula lumen; and a delivery cannula with a longitudinal tubular body dimensioned to be disposed through, and to extend beyond a distal end of the guide cannula lumen, the delivery cannula including: an open, proximal end, a deflectable distal segment, opposite the proximal end, including a distal tip, a delivery cannula lumen extending from the proximal end; where the delivery cannula body comprises a memory metal material such that the delivery cannula body includes a first state at a first temperature where the delivery cannula body is generally longitudinally straight, substantially defining a longitudinal axis; a second state at a second temperature, greater than the first temperature, where the memory metal is configured such that the distal segment forms a first curved shape having a first degree of curvature away from the longitudinal axis; and a third state at a third temperature, greater than the second temperature, where the memory metal is configured such that the distal segment forms a second curved shape having a second degree of curvature away from the longitudinal axis.