# US 11,432,859 B2 · Hook plate and hook plate system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,432,859 B2 - Document ID: US11432859B2 - Status: Granted - Kind: B2 - Application number: 16/828,588 - Filed: 2020-03-24 - Published: 2020-09-10 - Granted: 2022-09-06 - Earliest claimed: 2011-02-14 - Assignees: Skeletal Holdings, LLC - Applicants: Skeletal Holdings, LLC - Inventors: Jorge L. Orbay; Thomas H. Norman; Juan Salcedo - Web page: https://patentgrep.com/patent/US11432859B2 ## CPC - A61B 17/808: {Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms} - A61B 17/80: Cortical plates {, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates} - A61B 17/8004: {with means for distracting or compressing the bone or bones} - A61B 17/8061: {specially adapted for particular bones (A61B17/70 and A61B17/74 take precedence)} - A61B 17/8085: {with pliable or malleable elements or having a mesh-like structure, e.g. small strips (A61B17/8071, A61B17/8076 take precedence)} - A61B 17/809: {with bone-penetrating elements, e.g. blades or prongs (bone staples A61B17/0642; intramedullary nails with a plate at an end A61B17/7233)} - A61B 17/864: {hollow, e.g. with socket or cannulated} - A61B 17/8863: {Apparatus for shaping or cutting osteosynthesis equipment by medical personnel} - A61B 17/1728: {for holes for bone plates or plate screws} - A61B 17/8057: {the interlocking form comprising a thread} - A61B 17/863: {with thread interrupted or changing its form along shank, other than constant taper} - A61B 2090/037: {with a frangible part, e.g. by reduced diameter} - A61B 2090/3966: {Radiopaque markers visible in an X-ray image} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A hook plate for use in conjunction with a fracture fixation plate, said fracture fixation plate including a bone contacting surface and an opposite surface, said hook plate comprising a substantially rigid plate having a first portion and a second portion; the first portion adapted for slidable engagement with, said opposite surface of said fracture fixation plate; the second portion configured to wrap around an edge of said fracture fixation plate to engage with a bone fragment and reduce a fracture; the first portion being substantially flat and defining a first portion plane; the second portion having at least two projections which curve downward to a position below the first portion plane and terminate in hook ends adapted to engage with said bone fragment; the first portion including a slot that transects said hook plate from a surface of said hook plate that faces the fracture fixation plate to an opposing surface of said hook plate for engagement with a fastener on said opposite surface of said fracture fixation plate; said slot being elongated; and the first portion including an elongate member extending distally away from the first portion and upward to a position above the first portion, said elongate member adapted to aid in the tensioning of the hook plate prior to tightening of the fastener. ## Claims ### Claim 1 A hook plate for use in conjunction with a fracture fixation plate, said fracture fixation plate including a bone contacting surface and an opposite surface, said hook plate comprising: a substantially rigid plate having a first portion and a second portion; the first portion adapted for slidable engagement with, said opposite surface of said fracture fixation plate; the second portion configured to wrap around an edge of said fracture fixation plate to engage with a bone fragment and reduce a fracture; the first portion being substantially flat and defining a first portion plane; the second portion having at least two projections which curve downward to a position below the first portion plane and terminate in hook ends adapted to engage with said bone fragment; the first portion including a slot that transects said hook plate from a surface of said hook plate that faces the fracture fixation plate to an opposing surface of said hook plate for engagement with a fastener on said opposite surface of said fracture fixation plate; said slot being elongated; and the first portion including an elongate member extending distally away from the first portion and upward to a position above the first portion, said elongate member adapted to aid in tensioning of the hook plate prior to tightening of the fastener. ### Claim 2 (depends on 1) The hook plate of claim 1 wherein said elongate member is removable. ### Claim 3 (depends on 1) The hook plate of claim 1 wherein said fastener is a threaded fastener. ### Claim 4 (depends on 1) The hook plate of claim 1 wherein the first portion comprises indicia proximate the slot, said indicia adapted to identify any movement of said hook plate relative to said fracture fixation plate. ### Claim 5 A fracture fixation apparatus comprising: a substantially rigid fracture fixation plate including an elongated body portion having proximal and distal ends and defining a longitudinal body axis; said fracture fixation plate including a head portion adjacent to the distal end of said body portion; said head portion including a bone contacting surface and an opposite surface; the bone contacting surface of said head portion being adapted to anchor an ulnar or radial metaphyseal fragment of a fracture; a substantially rigid hook plate having a first portion and a second portion; the first portion adapted for slidable engagement with said opposite surface of said head portion; the second portion configured to wrap around an edge of said head portion to engage a bone fragment and reduce a fracture; the first portion being substantially flat and defining a first portion plane; the second portion having at least two projections which curve downward to a position below the first portion plane and terminate in hook ends adapted to engage said bone fragment; the first portion including a slot that transects said hook plate from a surface of said hook plate that faces the fracture fixation plate to an opposing surface of said hook plate for engagement with a fastener on said opposite surface of said head portion; said slot being elongated; and the first portion including an elongate member extending distally away from the first portion and upward to a position above the first portion, said elongate member adapted to aid in tensioning of the hook plate prior to tightening of the fastener. ### Claim 6 (depends on 5) The fracture fixation apparatus of claim 5 wherein said elongate member is removable. ### Claim 7 (depends on 5) The fracture fixation apparatus of claim 5 wherein said fastener is a threaded fastener. ### Claim 8 (depends on 5) The fracture fixation apparatus of claim 5 wherein the first portion comprises indicia proximate the slot, said indicia adapted to identify any movement of said hook plate relative to said fracture fixation plate.