# US 10,765,524 B2 · Prosthesis for a fractured long bone > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,765,524 B2 - Document ID: US10765524B2 - Status: Granted - Kind: B2 - Application number: 16/259,501 - Filed: 2019-01-28 - Published: 2019-08-01 - Granted: 2020-09-08 - Earliest claimed: 2018-01-31 - Assignees: Tornier SAS - Applicants: Tornier - Inventors: Pascal Boileau; Jean-Emmanuel Cardon; Bertrand Claizergues; Vincent Coulange; Benjamin Dassonville; Vincent Gaborit - Web page: https://patentgrep.com/patent/US10765524B2 ## CPC - A61F 2/4059: {Humeral shafts} - A61F 2/28: Bones - A61F 2/30734: {Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect} - A61F 2/4014: {Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts} - A61B 17/86: Pins or screws {or threaded wires; nuts therefor (A61B17/72 take precedence)} - A61F 2/4003: {Replacing only the epiphyseal or metaphyseal parts of the humerus, i.e. endoprosthesis not comprising an entire humeral shaft (replacing only the epiphyseal or metaphyseal parts of the femur A61F2/3601)} - A61F 2002/2835: {Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material} - A61F 2002/2853: {Humerus} - A61F 2002/30092: {using shape memory or superelastic materials, e.g. nitinol} - A61F 2002/30332: {Conically- or frustoconically-shaped protrusion and recess} - A61F 2002/30433: {using additional screws, bolts, dowels, rivets or washers e.g. connecting screws} - A61F 2002/30593: {hollow} - A61F 2002/30827: {Plurality of grooves} - A61F 2002/30879: {Ribs} - A61F 2002/4062: {Proximal or metaphyseal parts of shafts} - A61F 2002/4066: {for replacement or reinforcement of the greater tubercle} - A61F 2002/4631: {the prosthesis being specially adapted for being cemented} - A61F 2210/0014: using shape memory or superelastic materials, e.g. nitinol - A61F 2310/00023: Titanium or titanium-based alloys, e.g. Ti-Ni alloys - 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) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract The invention concerns a prosthesis comprising: a stem part comprising: a rod, configured for being inserted into a medullary cavity of a diaphyseal fragment of a fractured long bone, for securing the stem part to the diaphyseal fragment, and an epiphyseal end, fixedly secured to the rod by means of at least one linker leg of the stem part, so that a gap is formed between the epiphyseal end and the rod along said at least one linker leg; and an implant distinct from the stem part and comprising: an internal part located at least partially within the gap, and at least one fastener for fastening epiphyseal fragments of the fractured long bone to the stem part, said at least one fastener being secured to the internal part. ## Claims ### Claim 1 A prosthesis for a fractured long bone, the prosthesis comprising: a stem part comprising: a rod, configured for being inserted into a medullary cavity of a diaphyseal fragment of the fractured long bone, for securing the stem part to the diaphyseal fragment, and an epiphyseal end, fixedly secured to the rod by means of at least one linker leg of the stem part, so that a gap is formed between the epiphyseal end and the rod along said at least one linker leg; and an implant distinct from the stem part and comprising: an internal part located at least partially within the gap, and at least one fastener for fastening epiphyseal fragments of the fractured long bone to the stem part, said at least one fastener being secured to the internal part. ### Claim 2 (depends on 1) The prosthesis according to claim 1, wherein said at least one fastener comprises a screw, positioned into the internal part. ### Claim 3 (depends on 1) The prosthesis according to claim 1, wherein the internal part has an elastic tongue allowing snap-fitting of the internal part into the gap, for securing the internal part to the gap. ### Claim 4 (depends on 1) The prosthesis according to claim 1, wherein the internal part comprises at least one expansible body, having: a retracted configuration allowing insertion of the expansible body into the gap, and an expanded configuration preventing extraction of the expansible body from the gap, thereby securing the expansible body to the gap, the expansible body being put in the expanded configuration by securing the fastener thereto. ### Claim 5 (depends on 1) The prosthesis according to claim 1, wherein the implant comprises at least one exterior part, at least a partially located at the periphery of the stem part, along said at least one linker leg, said exterior part being secured to the internal part. ### Claim 6 (depends on 5) The prosthesis according to claim 5, wherein: the stem part defines a main axis passing through the rod, the gap and the epiphyseal end; and said at least one exterior part comprises an axial through-opening, the stem part being inserted through the through-opening along the main axis so as to be at least partially wrapped by the exterior part for securing the exterior part to the stem part. ### Claim 7 (depends on 1) The prosthesis according to claim 1, wherein the internal part comprises a synthetic plastic material. ### Claim 8 (depends on 7) The prosthesis according to claim 7, wherein the synthetic plastic material of the internal part comprises Polyethylene or Poly-Ether-Ether-Ketone. ### Claim 9 (depends on 1) The prosthesis according to claim 1, wherein the internal part comprises a mesh metallic material or a porous metallic material. ### Claim 10 (depends on 9) The prosthesis according to claim 9, wherein the metallic material of the internal part comprises Titanium and/or Nitinol. ### Claim 11 (depends on 1) The prosthesis according to claim 1, wherein at least a part of the implant, comprises a peripheral shell and at least one bone graft core received within the peripheral shell. ### Claim 12 (depends on 11) The prosthesis according to claim 11, wherein said at least a part of the implant, which comprises the peripheral shell and said at least one bone graft core, is the internal part. ### Claim 13 (depends on 11) The prosthesis according to claim 11, wherein the peripheral shell comprises a biomaterial. ### Claim 14 (depends on 11) The prosthesis according to claim 11, wherein the peripheral shell comprises a degradable polymer or degradable metal. ### Claim 15 (depends on 11) The prosthesis according to claim 11, wherein the peripheral shell comprises at least one of the following composites of materials: a composite of hydroxyapatite and tricalciumphosphate, a composite of polylactide-co-glycolide and tricalciumphosphate, a composite of poly-L-lactide and tricalciumphosphate. ### Claim 16 (depends on 1) The prosthesis according to claim 1, wherein the implant comprises barbs protruding outwardly from the implant, outside of the gap. ### Claim 17 (depends on 1) The prosthesis according to claim 1, wherein at least a part of the implant is obtained by additive manufacturing. ### Claim 18 (depends on 1) The prosthesis according to claim 1, wherein the prosthesis is a shoulder prosthesis for a fractured humerus.