Interspinous process implant having deployable anchor blades

An interspinous process implant, comprising:

• a) an elongated body dimensioned and configured for percutaneous interspinous process implantation, defining a longitudinal axis, an interior cavity and opposed proximal and distal end portions;
• b) a pair of diametrically opposed anchor wings operatively associated with the distal end portion of the body and mounted for pivotal movement relative to the longitudinal axis of the body between a first position housed within the interior cavity of the body and a second position extending radially outwardly from the body;
• c) an anchor collar operatively associated with the proximal portion of the body and mounted for axial movement relative to the longitudinal axis of the body between a first position spaced apart from the anchor wings and a second position approximated with the anchor wings;
• d) a pair of diametrically opposed anchor blades operatively associated with the anchor collar and mounted for pivotal movement between a first position housed at least partially within the interior cavity of the body and a second position extending radially outwardly from the anchor collar;
• and
• e) an elongated actuation shaft mounted for axial movement within the interior cavity of the body and having a distal actuation portion for pivoting the anchor wings from their first position to their second position and a proximal actuation portion for pivoting the anchor blades from their first position to their second position.

An interspinous process implant, comprising:

• a) an elongated body dimensioned and configured for percutaneous interspinous process implantation, defining a longitudinal axis, an interior cavity and opposed proximal and distal end portions;
• b) a pair of anchor wings operatively associated with the distal end portion of the body and mounted for pivotal movement relative to the longitudinal axis of the body between a first position housed within the interior cavity of the body and a second position extending radially outwardly from the body;
• c) an anchor collar operatively associated with the proximal portion of the body and mounted for axial movement relative to the longitudinal axis of the body between a first position spaced apart from the anchor wings and a second position approximated with the anchor wings;
• d) a pair of anchor blades operatively associated with the anchor collar and mounted for sliding movement between a first position housed within the interior cavity of the body and a second position extending radially outwardly from the anchor collar;
• and
• e) an elongated actuation shaft mounted for axial movement within the interior cavity of the body and having a distal actuation portion for pivoting the anchor wings from their first position to their second position and a proximal actuation portion for sliding the anchor blades from their first position to their second position.