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Devices, systems and methods for surgical treatment of mid-foot disorders such as osteoarthritis, spacing disorders, or alignment disorders, including mid-foot arthroplasty devices and systems for the 2nd and 3rd tarsometatarsal (TMT) joint, implants for post-osteotomy spacing and realignment, arthroplasty articular implants, dowel grafts for TMT arthrodesis or fusion, dowel grafts for navicular cuneiform (NC) arthrodesis, dowel grafts for intercuneiform arthrodesis, and/or locking dowels for joint fusion.

Titel:	Expandable Mid-Foot Osteotomy Devices, Systems, and Methods for Treating Mid-Foot Disorders
Link:	View record in USPTO Patent Applications (Volltext)
Veröffentlichung:	2024
Medientyp:	Patent
Sonstiges:	Nachgewiesen in: USPTO Patent Applications Sprachen: English Document Number: 20240065741 Publication Date: February 29, 2024 Appl. No: 18/459034 Application Filed: August 30, 2023 Assignees: Apex Orthopedics, LLC (Aurora, CO, US) Claim: 1. Mid-foot osteotomy device, comprising a biocompatible implant having a wedge shape configured to be placed between adjacent bones post-osteotomy, the wedge-shaped biocompatible implant has a pre-implant angle and a post-implant angle, the post-implant angle is expandable and configured to provide gradual correction over time post-implant, and inflation chamber within the wedge-shaped biocompatible implant and a fluid conduit communicating with the inflation chamber, wherein the inflation chamber is configured to expand the wedge-shaped biocompatible implant from the pre-implant angle to the post-implant angle under the influence of a fluid input from the fluid conduit to the inflation chamber. Claim: 2. The mid-foot osteotomy device of claim 1, wherein the biocompatible implant further comprises a central annular opening and the inflation chamber surrounds the central annular opening. Claim: 3. The mid-foot osteotomy device of claim 2, wherein the central annular opening is configured to allow for fixation between two opposing bone tissue surfaces through the central annular opening Claim: 4. The mid-foot osteotomy device of claim 1, wherein the biocompatible implant is fabricated of shape memory or superelastic nickel-titanium based alloy. Claim: 5. The mid-foot osteotomy device of claim 1, wherein the biocompatible implant is fabricated of a biocompatible material selected from the group consisting of metal, ceramic, composites, polymer, or a synthetic bone growth matrix, or combinations thereof. Claim: 6. The mid-foot osteotomy device of claim 5, wherein the metal is selected from the group of shape memory alloys, stainless steel, cobalt-based alloys, and titanium. Claim: 7. The mid-foot osteotomy device of claim 6, wherein the metal is a porous metal. Claim: 8. The mid-foot osteotomy device of claim 5, further comprising a surface treatment that imparts osteophilic bone growth sites to the biocompatible material. Claim: 9. The mid-foot osteotomy device according to claim 5, wherein the ceramic is selected from the group consisting of alumina, zirconia, alumina composites, or oxidized zirconium composites. Claim: 10. The mid-foot osteotomy device according to claim 5, wherein the synthetic bone growth matrix is selected from the group of hydroxyapatite, tricalcium phosphate, calcium sulfate, or combinations thereof. Claim: 11. The mid-foot osteotomy device according to claim 5, wherein the polymer further comprises a resorbable polymer selected from the group of polylactides, polyglycolides, polycaprolactone, cellulose, chitosan, collagen, hyaluronan, fibrin, or combinations thereof. Claim: 12. The mid-foot osteotomy device of claim 1, wherein the wedge-shaped biocompatible implant further comprises an inflatable balloon. Claim: 13. The mid-foot osteotomy device of claim 12, wherein the inflatable balloon is microporous. Claim: 14. The mid-foot osteotomy device of claim 12, wherein the inflatable balloon is made of a bioresorbable material. Claim: 15. An osteotomy implant, comprising a wedge-shaped member having a central annular opening, the wedge-shaped member having a taper configured to be placed between adjacent bones post-osteotomy; and an inflation chamber within the wedge-shaped implant, wherein the wedge-shaped implant has a taper that is capable of being expanded from a first angle to a second angle upon introducing of a fluid into the inflation chamber. Claim: 16. The mid-foot osteotomy device of claim 15, wherein the central annular opening is configured to allow for fixation between two opposing bone tissue surfaces through the central annular opening. Current International Class: 61; 61

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Expandable Mid-Foot Osteotomy Devices, Systems, and Methods for Treating Mid-Foot Disorders