US 12,446,899 B2
Device, method, and kit for preparing a bone void for joint replacement
Vasili Karas, Chicago, IL (US)
Assigned to KARAS GROUP LLC, Chicago, IL (US)
Appl. No. 18/557,864
Filed by KARAS GROUP LLC, Chicago, IL (US)
PCT Filed Apr. 5, 2022, PCT No. PCT/US2022/023510
§ 371(c)(1), (2) Date Oct. 27, 2023,
PCT Pub. No. WO2022/235365, PCT Pub. Date Nov. 10, 2022.
Claims priority of provisional application 63/184,451, filed on May 5, 2021.
Prior Publication US 2024/0206888 A1, Jun. 27, 2024
Int. Cl. A61B 17/16 (2006.01); A61F 2/46 (2006.01)
CPC A61B 17/164 (2013.01) [A61B 17/1631 (2013.01); A61B 17/1659 (2013.01); A61F 2/4607 (2013.01); A61B 2017/1602 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A bone void sculpting instrument for preparing a bone for joint replacement comprising:
a tool frame, comprising:
a primary lateral surface;
at least one secondary lateral surface recessed from the primary lateral surface, wherein the at least one secondary lateral surface has a non-constant radius; and
an internal tool frame cavity;
a driveshaft having a proximal end and a distal end, wherein the driveshaft is rotatably fixed within the internal tool frame cavity;
a drive interface coupled to the proximal end of the driveshaft;
a plurality of interlocked bone sculpting tools configured to form at least one continuous loop around the at least one secondary lateral surface, the at least one continuous loop of the plurality of interlocked bone sculpting tools having a substantially same cross-sectional shape as the at least one secondary lateral surface, the at least one continuous loop of the plurality of interlocked bone sculpting tools configured to move along a pre-configured path along the at least one secondary lateral surface; and
at least one torque interface coupled to both the driveshaft and the at least one continuous loop of the plurality of interlocked bone sculpting tools.