# US 2014/0194930 A1 · Interspinous process implant having deployable anchor blades > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0194930 A1 - Document ID: US20140194930A1 - Status: Published application - Kind: A1 - Application number: 13/940,868 - Filed: 2013-07-12 - Published: 2014-07-10 - Earliest claimed: 2013-01-07 - Assignees: Spinal Simplicity, LLC - Applicants: Spinal Simplicity LLC - Inventors: Harold Hess; Adam Frock; Melissa Frock; Todd Moseley; Adam Rogers; Jonathan Hess - Web page: https://patentgrep.com/patent/US20140194930A1 ## CPC - A61B 17/7065: {Devices with changeable shape, e.g. collapsible or having retractable arms to aid implantation; Tools therefor} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract An interspinous process implant is disclosed that includes a body defining a longitudinal axis, an interior cavity and opposed proximal and distal end portions, 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, 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, a pair of anchor blades operatively associated with the anchor collar and mounted for 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. ## Claims ### Claim 1 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 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) a locking ring for securing the axial position of the anchor collar with respect to the elongated body. ### Claim 2 (depends on 1) An interspinous process implant as recited in claim 1, wherein the locking ring has a pair of diametrically opposed, arcuate shaped, cantilevered pawls, each with distal facing teeth for engaging a corresponding set of teeth on the proximal facing surface of the anchor collar. ### Claim 3 (depends on 2) An interspinous process implant as recited in claim 2, wherein the locking ring further includes a hexagonal nut portion on a proximal-most surface thereof for manipulation. ### Claim 4 (depends on 1) An interspinous process implant as recited in claim 1, further comprising an elongated actuation shaft mounted for axial movement within the interior cavity of the body and having a distal actuation portion for moving the anchor wings from their first position to their second position and a proximal actuation portion for moving the anchor blades from their first position to their second position. ### Claim 5 (depends on 4) An interspinous process implant as recited in claim 4, further comprising means for moving the actuation shaft within the interior cavity of the body. ### Claim 6 (depends on 1) An interspinous process implant as recited in claim 1, wherein the anchor blades are mounted for pivotal movement between their first and second positions. ### Claim 7 (depends on 1) An interspinous process implant as recited in claim 1, wherein the anchor blades are mounted for sliding movement between their first and second positions. ### Claim 8 (depends on 6) An interspinous process implant as recited in claim 6, wherein each anchor blade has an interior lever for interacting with a flange on the proximal actuation portion of the actuation shaft. ### Claim 9 (depends on 6) An interspinous process implant as recited in claim 6, wherein each anchor blade has a cam surface for interacting with a cam on an undersurface of an actuating nut operatively associated with the body. ### Claim 10 (depends on 6) An interspinous process implant as recited in claim 6, wherein each anchor blade has extension tabs for riding in guide tracks formed within the interior of the body ### Claim 11 (depends on 7) An interspinous process implant as recited in claim 7, wherein each anchor blade has a cam surface for interacting with a cam on the proximal actuation portion of the actuation shaft. ### Claim 12 (depends on 7) An interspinous process implant as recited in claim 7, wherein each anchor blade has a cam surface for interacting with a cam formed within the interior of the body. ### Claim 13 (depends on 7) An interspinous process implant as recited in claim 7, wherein each anchor blade includes a locking tab for securing the anchor wings in the second position relative to the anchor collar. ### Claim 14 (depends on 1) An interspinous process implant as recited in claim 1, wherein each anchor wing has a proximally facing engagement surface having a plurality of spikes provided thereon for engaging the spinous process ### Claim 15 (depends on 1) An interspinous process implant as recited in claim 1, wherein each anchor blade has a distally facing engagement surface having a plurality of spikes provided thereon for engaging the spinous process. ### Claim 16 (depends on 1) An interspinous process implant as recited in claim 1, wherein the anchor wings are diametrically opposed to one another relative to the longitudinal axis of the body and wherein the anchor blades are diametrically opposed to one another relative to the longitudinal axis of the body. ### Claim 17 (depends on 16) An interspinous process implant as recited in claim 16, wherein the diametrically opposed anchor wings are axially aligned with the diametrically opposed anchor blades. ### Claim 18 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. ### Claim 19 (depends on 18) An interspinous process implant as recited in claim 18, further comprising means for moving the actuation shaft within the interior cavity of the body. ### Claim 20 (depends on 18) An interspinous process implant as recited in claim 18, wherein each anchor blade has an interior lever for interacting with a flange on the proximal actuation portion of the actuation shaft. ### Claim 21 (depends on 18) An interspinous process implant as recited in claim 18, wherein each anchor wing has a proximally facing engagement surface having a plurality of spikes provided thereon for engaging the spinous process ### Claim 22 (depends on 18) An interspinous process implant as recited in claim 18, wherein each anchor blade has a distally facing engagement surface having a plurality of spikes provided thereon for engaging the spinous process. ### Claim 23 (depends on 18) An interspinous process implant as recited in claim 18, wherein the diametrically opposed anchor wings are axially aligned with the diametrically opposed anchor blades. ### Claim 24 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. ### Claim 25 (depends on 24) An interspinous process implant as recited in claim 24, further comprising means for moving the actuation shaft within the interior cavity of the body. ### Claim 26 (depends on 24) An interspinous process implant as recited in claim 24, wherein each anchor blade has an interior cam surface for interacting with a cam on the proximal actuation portion of the actuation shaft. ### Claim 27 (depends on 24) An interspinous process implant as recited in claim 24, wherein each anchor blade includes a locking tab for securing the anchor wings in the second position relative to the anchor collar. ### Claim 28 (depends on 24) An interspinous process implant as recited in claim 24, wherein each anchor wing has a proximally facing engagement surface having a plurality of spikes provided thereon for engaging the spinous process ### Claim 29 (depends on 24) An interspinous process implant as recited in claim 24, wherein each anchor blade has a distally facing engagement surface having a plurality of spikes provided thereon for engaging the spinous process. ### Claim 30 (depends on 24) An interspinous process implant as recited in claim 24, wherein the diametrically opposed anchor wings are axially aligned with the diametrically opposed anchor blades.