Patent ID: 9358059
Filing Date: 2016-06-07
CPC Classification: A61B

Claim Text:
1. A cannula device for delivering a curable material, such as bone cement, into bone as part of a curable material delivery system, the device comprising: a delivery cannula defining: wherein the deflectable segment forms a curved shape in longitudinal extension and has a shape memory characteristic such that the deflectable segment is configured to assume a substantially longitudinally straightened form generally along the longitudinal axis when subjected to a force and naturally revert to the curved shape upon removal of the force; where the curved shape of the deflectable segment including memory metal material is temperature-dependent, being configured such that, at a first elevated temperature, greater than an initial temperature at which the deflectable segment including memory metal material is in its substantially longitudinally straightened form, the memory metal is configured such that the distal segment forms a first curved shape having a first degree of curvature out of the longitudinal axis, and at a second elevated temperature, greater than the first elevated temperature, the memory metal is configured such that the distal segment forms a second curved shape having a second degree of curvature out of the longitudinal axis.