US 12,453,638 B2
Metatarsal arthroplasty devices, systems, and methods
Richard Marks, Mobile, AL (US); and Arley Perez, III, Wayne, NJ (US)
Filed by Richard Marks, Mobile, AL (US); and Arley Perez, III, Wayne, NJ (US)
Filed on Dec. 19, 2022, as Appl. No. 18/084,517.
Claims priority of provisional application 63/291,363, filed on Dec. 18, 2021.
Prior Publication US 2023/0190492 A1, Jun. 22, 2023
Int. Cl. A61F 2/42 (2006.01); A61B 17/16 (2006.01); A61F 2/30 (2006.01); A61F 2/46 (2006.01)
CPC A61F 2/4225 (2013.01) [A61B 17/1682 (2013.01); A61F 2/30767 (2013.01); A61F 2/46 (2013.01); A61F 2/4606 (2013.01); A61F 2002/30131 (2013.01); A61F 2002/30224 (2013.01); A61F 2002/30245 (2013.01); A61F 2002/30299 (2013.01); A61F 2002/30326 (2013.01); A61F 2002/30327 (2013.01); A61F 2002/30841 (2013.01); A61F 2002/30878 (2013.01); A61F 2002/30879 (2013.01); A61F 2002/30904 (2013.01); A61F 2002/30934 (2013.01); A61F 2002/4233 (2013.01); A61F 2002/4681 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A system for preparing a metatarsal bone, the system comprising:
a metatarsal arthroplasty implant comprising:
an articular member comprising:
a convex articular surface; and
a bone-facing surface opposite the convex articular surface; and
a central shaft coupled to the bone-facing surface and sized for insertion into the metatarsal bone; and
a broach tool comprising:
a broach tool shaft comprising:
a longitudinal axis;
a proximal end; and
a distal end;
a cutting form disposed at the distal end of the broach tool shaft and shaped to correspond to a central shaft of the metatarsal arthroplasty implant;
a strike plate disposed at the proximal end of the broach tool shaft comprising:
an insertion strike surface; and
a removal strike surface opposite the insertion strike surface; and
a slap hammer slidable along the broach tool shaft to facilitate removal of the cutting form from the metatarsal bone;
wherein:
the insertion strike surface of the strike plate is configured to receive and transmit an insertion impact force to drive the cutting form into the metatarsal bone and prepare the metatarsal bone to receive the metatarsal arthroplasty implant; and
the removal strike surface of the strike plate is configured to receive and transmit a removal impact force from the slap hammer to remove the cutting form from the metatarsal bone.