# US 10,478,233 B2 · Adjustable hook > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,478,233 B2 - Document ID: US10478233B2 - Status: Granted - Kind: B2 - Application number: 15/813,790 - Filed: 2017-11-15 - Published: 2018-05-17 - Granted: 2019-11-19 - Earliest claimed: 2016-11-16 - Assignees: Alphatec Spine, Inc. - Applicants: Alphatec Spine, Inc. - Inventors: Thomas Hackathorn, II - Web page: https://patentgrep.com/patent/US10478233B2 ## CPC - A61B 17/7065: {Devices with changeable shape, e.g. collapsible or having retractable arms to aid implantation; Tools therefor} - A61B 17/7032: {Screws or hooks with U-shaped head or back through which longitudinal rods pass} - A61B 17/7056: {Hooks with specially-designed bone-contacting part} - A61B 17/707: {Devices acting on, or attached to, a transverse process or rib; Tools therefor} - A61B 17/7071: {Implants for expanding or repairing the vertebral arch or wedged between laminae or pedicles; Tools therefor} - A61B 2017/00407: {Ratchet means} - A61B 2017/00685: {Archimedes screw} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A bone hook having a displaceable jaw is provided. The hook includes a rod receiving portion and main body with a jaw defining a slot for receiving a bone, and an actuator configured to vary the dimension of the slot. The actuator is configured to translate a rotation into an adjustment of a height of the slot thereby gripping or clamping a pedicle, lamina, or transverse process bone between the jaw and main body. ## Claims ### Claim 1 A bone hook assembly adaptable to engage any one of a plurality of pedicle, lamina, or transverse process bones, each of the plurality of pedicle, lamina, or transverse process bones being dimensioned different than the other, the bone hook assembly comprising: a main body having a rod receiving portion; a jaw spaced apart from the main body so as to define a slot for receiving one of the plurality of pedicle, lamina, or transverse process bones, wherein the slot has a height; an actuator configured to adjust the height of the slot; a pair of tabs on the jaw; and a receiving portion having elongated slots; wherein the actuator is configured to translate a rotation into an adjustment of the height of the slot; and wherein the receiving portion is configured to slidingly receive the jaw wherein the pair of tabs are configured to slide into a respective elongated slot. ### Claim 2 (depends on 1) The bone hook assembly as set forth in claim 1, further comprising a pair of pins, a pair of pin slots on the receiving portion, and a pair of pin holes in the pair of tabs, and wherein the pair of pins disposed in the pair of pin holes are configured to extend into a corresponding pin slot. ### Claim 3 (depends on 1) The bone hook assembly as set forth in claim 1, further comprising a bore located in the receiving portion and a threaded bore in the jaw, and wherein the bore is configured to register with the threaded bore when the jaw is coupled to the receiving portion. ### Claim 4 (depends on 3) The bone hook assembly as set forth in claim 3, wherein the actuator is a screw disposed in a first bore of the receiving portion and threaded into the threaded bore of the jaw. ### Claim 5 (depends on 1) The bone hook assembly as set forth in claim 1, further comprising a clamping plate, wherein the receiving portion is integrated into the main body and wherein the receiving portion is configured to slidingly receive the clamping plate. ### Claim 6 (depends on 5) The bone hook assembly as set forth in claim 5, wherein the receiving portion includes a through-bore. ### Claim 7 (depends on 6) The bone hook assembly as set forth m claim 6, wherein the clamping plate is configured to threadingly engage a screw. ### Claim 8 (depends on 7) The bone hook assembly as set forth in claim 7, wherein the actuator is the screw disposed in the through-bore and threadingly engaged with the clamping plate. ### Claim 9 (depends on 1) The bone hook assembly as set forth in claim 1, further comprising a pair of pins, a pair of pin slots on the receiving portion includes and a pair of pin holes in the pair of tabs, and wherein the pair of pins disposed in the pair of pin holes is configured to extend into a corresponding pin slot. ### Claim 10 A bone hook assembly adaptable to engage any one of a plurality of pedicle, lamina, or transverse process bones, each of the plurality of pedicle, lamina, or transverse process bones being dimensioned different than the other, the bone hook assembly comprising: a main body having a rod receiving portion; a jaw spaced apart from the main body so as to define a slot for receiving one of the plurality of pedicle, lamina, or transverse process bones, wherein the slot has a height; an actuator configured to adjust the height of the slot; and a receiving portion having elongated slots and a pair of tabs on the jaw; wherein the jaw is slidably attached to the main body; wherein the actuator is configured to fix the jaw with respect to the main body so as to adjust the height of the slot; and wherein the receiving portion is configured to slidingly receive the jaw and the pair of tabs are configured to slide into a respective elongated slot. ### Claim 11 (depends on 10) The bone hook assembly as set forth in claim 10, further comprising a threaded bore on the receiving portion between the elongated slots. ### Claim 12 (depends on 11) The bone hook assembly as set forth in claim 11, wherein the actuator is a set screw threadingly engaged with the threaded bore such that a force is applied to bias the pair of tabs against the receiving portion, fixing the pair of tabs in place with respect to the receiving portion. ### Claim 13 A bone hook assembly adaptable to engage any one of a plurality of pedicle, lamina, or transverse process bones, each of the plurality of pedicle, lamina, or transverse process bones being dimensioned different than the other, the bone hook assembly comprising: a main body having a rod receiving portion; a jaw spaced apart from the main body so as to define a slot for receiving one of the plurality of pedicle, lamina, or transverse process bones, wherein the slot has a height; and an actuator configured to adjust the height of the slot; wherein the jaw is slidably attached to the main body; wherein the actuator is configured to fix the jaw with respect to the main body so as to adjust the height of the slot; and wherein the actuator is a ratchet mechanism. ### Claim 14 (depends on 13) The bone hook assembly as set forth in claim 13, further comprising a receiving portion having an elongated slot and the jaw has a guide, and wherein the elongated slot extends the length of the receiving portion and the guide is configured to slidingly fit within the elongated slot. ### Claim 15 (depends on 14) The bone hook assembly as set forth in claim 14, further comprising a back wall of the receiving portion having a plurality of teeth. ### Claim 16 (depends on 15) The bone hook assembly as set forth in claim 15, wherein the plurality of teeth have a top contact surface and an angled surface extending from the top contact surface to the back wall. ### Claim 17 (depends on 16) The bone hook assembly as set forth in claim 16, further including a catch on the jaw including a lip at a distal end of the catch that is configured to engage the top contact surface of any one of the plurality of teeth.