# US 11,992,252 B2 · Distal radius stabilization system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,992,252 B2 - Document ID: US11992252B2 - Status: Granted - Kind: B2 - Application number: 17/668,768 - Filed: 2022-02-10 - Published: 2022-05-26 - Granted: 2024-05-28 - Earliest claimed: 2016-08-17 - Assignees: Globus Medical, Inc. - Applicants: Globus Medical, Inc. - Inventors: Andrew Davison; Stephanie Wolfe; Evan Langdale; Joseph DePaul; Barclay Davis; Gabrielle Zingalis; Michelle Gray; David Laird, Jr.; Peter Evans - Web page: https://patentgrep.com/patent/US11992252B2 ## CPC - A61B 17/8061: {specially adapted for particular bones (A61B17/70 and A61B17/74 take precedence)} - A61B 17/8004: {with means for distracting or compressing the bone or bones} - A61B 17/8014: {the extension or compression force being caused by interaction of the plate hole and the screws} - A61B 17/8033: {having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers} - A61B 17/8057: {the interlocking form comprising a thread} - A61B 17/808: {Instruments for holding or positioning bone plates, or for adjusting screw-to-plate locking mechanisms} - 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 17/86: Pins or screws {or threaded wires; nuts therefor (A61B17/72 take precedence)} - A61B 17/8605: {Heads, i.e. proximal ends projecting from bone} - A61B 2017/00004: {(bio)absorbable, (bio)resorbable or resorptive} - A61B 2017/564: {Methods for bone or joint treatment} - A61F 2/4241: {for hands, e.g. fingers} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) ## Abstract Devices, systems, and methods for bone stabilization, especially ulna head stabilization. The stabilization system may include a bone plate having an elongated portion extending along a longitudinal axis between a proximal end and a distal end. The bone plate defines a plurality of through holes extending through the elongated portion. A plurality of fasteners are configured to extend through one or more of the plurality of through holes in the bone plate and configured to secure the bone plate to the bone. The proximal end of the elongate portion has an arcuate configuration. ## Claims ### Claim 1 A method of fixating a volar distal radius plate to a bone, said method comprising: providing the volar distal radius plate; providing a targeting guide for use with the volar distal radius plate, the targeting guide including: a body having an upper portion configured to be disposed on a head portion of the volar distal radius plate and a lower portion configured to couple the targeting guide to the volar distal radius plate; a plurality of cannulated openings corresponding to respective first openings of the volar distal radius plate, wherein the cannulated openings are configured to facilitate drilling pilot holes at desired trajectories through the first openings of the volar distal radius plate; and a collet configured to extend from the lower portion of the body and into a second opening in the volar distal radius plate, the collet having a plurality of arms configured to be deflected radially inward as the collet is inserted into the second opening and to return to an undeflected position after the collet is moved beyond a portion of the second opening having a reduced diameter, wherein an exterior surface of each of the plurality of arms extends radially inwardly and then radially outwardly to define a v-shaped valley therebetween, the valley being positioned opposite the reduced diameter of the second opening when the collet is inserted into the second opening; attaching the targeting guide to the volar distal radius plate by inserting the collet into the second opening of the volar distal radius plate; drilling pilot holes into the bone through the cannulated openings and the first openings; removing the targeting guide from the volar distal radius plate; and fixating the volar distal radius plate to the bone via fasteners. ### Claim 2 (depends on 1) The method of claim 1, wherein the targeting guide further comprises: a plurality of k-wire openings corresponding to a plurality of k-wire openings in the volar distal radius plate. ### Claim 3 (depends on 1) The method of claim 1, wherein the collet further comprises: a reduced diameter portion configured to receive and mate with the portion of the opening in the volar distal radius plate having the reduced diameter; and a flange disposed distal to the reduced diameter portion and extending radially outward from the collet. ### Claim 4 (depends on 1) The method of claim 1, further comprising: a screw configured to be inserted into a central opening of the collet to prevent deflection of the collet radially inward. ### Claim 5 (depends on 1) The method of claim 1, wherein the body further includes a neck portion extending between the upper portion and the lower portion. ### Claim 6 (depends on 1) The method of claim 1, wherein the upper portion is adjacent the lower portion. ### Claim 7 (depends on 1) The method of claim 1, wherein the body does not surround k-wire holes in the volar distal radius plate. ### Claim 8 A method for stabilizing a bone, said method comprising: providing a bone plate, the bone plate including an elongated portion extending along a longitudinal axis, an enlarged head portion, a transition region connecting the elongated portion to the enlarged head portion, and a plurality of through holes extending through the elongated portion and the head portion; providing a targeting guide coupled to the bone plate, the targeting guide including: a body having an upper portion configured to be disposed on the enlarged head portion of the bone plate and a lower portion configured to couple the targeting guide to the bone plate; a plurality of cannulated openings corresponding to the plurality of through holes, wherein the cannulated openings are configured to facilitate drilling pilot holes at desired trajectories through the through holes; and a collet configured to extend from the lower portion of the body and into one of the plurality of through holes, the collet having a plurality of arms configured to be deflected radially inward as the collet is inserted into an opening of the body and to return to an undeflected position after the collet is moves beyond a portion of the opening having a reduced diameter, wherein an exterior surface of each of the plurality of arms extends radially inwardly and then radially outwardly to define a v-shaped valley therebetween, the valley being positioned opposite the reduced diameter opening when the collet is inserted into the reduced diameter opening; and providing a spring drill-guide configured to be coupled to a drill and including: a drill bit extending from a proximal end to a distal end, a compression element; and a sleeve coupled to a distal end of the compression element, wherein the drill bit extends through the compression element and the sleeve such that, in an initial state where the compression element is not compressed, only the distal end of the drill bit extends through the sleeve, inserting the spring drill-guide into one of the plurality of cannulated openings of the targeting guide, wherein the sleeve remains in the opening as the drill bit is inserted further through the opening and the compression element is compressed. ### Claim 9 (depends on 8) The method of claim 8, wherein the compression element is a helical spring. ### Claim 10 (depends on 8) The method of claim 8, wherein the targeting guide further comprises: a plurality of k-wire openings corresponding to a plurality of k-wire openings in the bone plate. ### Claim 11 (depends on 8) The method of claim 8, wherein the collet further comprises: a reduced diameter portion configured to receive and mate with the portion of the opening in the bone plate having the reduced diameter; and a flange disposed distal to the reduced diameter portion and extending radially outward from the collet. ### Claim 12 (depends on 8) The method of claim 8, wherein the targeting guide further comprises: a screw configured to be inserted into a central opening of the collet to prevent deflection of the collet radially inward. ### Claim 13 (depends on 8) The method of claim 8, wherein the body of the targeting guide further includes a neck portion extending between the upper portion and the lower portion. ### Claim 14 (depends on 8) The method of claim 8, wherein the upper portion of the targeting guide is adjacent the lower portion of the targeting guide. ### Claim 15 (depends on 14) The method of claim 14, wherein the body of the targeting guide does not surround k-wire holes in the bone plate.