US 12,440,251 B2
Small bone internal fixation system for orthopedic surgery
Bradley David Castellano, Naples, FL (US)
Filed by Bradley David Castellano, Naples, FL (US)
Filed on May 24, 2023, as Appl. No. 18/322,747.
Claims priority of provisional application 63/450,866, filed on Mar. 8, 2023.
Prior Publication US 2024/0299069 A1, Sep. 12, 2024
Int. Cl. A61B 17/80 (2006.01); A61B 17/88 (2006.01); A61B 17/90 (2006.01); A61B 17/56 (2006.01); A61B 17/68 (2006.01)
CPC A61B 17/8004 (2013.01) [A61B 17/8057 (2013.01); A61B 17/8061 (2013.01); A61B 17/8897 (2013.01); A61B 17/90 (2021.08); A61B 2017/565 (2013.01); A61B 2017/681 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A fixation device for use in osteotomy of a bone having an elongate bone shank portion and a bone head at one end of the bone shank portion where the osteotomy is used to separate the bone head portion from the bone shank portion at a division line defining an osteotomy surface, the device comprising:
a unitary member having:
an elongate plate portion having two side edges, a first end, a second end, an upper surface and a lower surface where the first and second ends are spaced longitudinally along the elongate plate portion;
at least first and second holes through the elongate plate portion from the upper surface to the lower surface and between the side edges where said at least first and second holes are spaced longitudinally along the elongate plate portion;
the elongate plate portion being arranged for attachment of the lower surface to a top of the elongate bone shank portion so as to extend in a longitudinal direction along the bone shank portion from the first end to be located remote from the bone head portion to the second end to be located at the bone head portion;
said at least first and second holes being arranged to receive fasteners passing through the elongate plate portion from the upper surface for fastening the lower surface of the elongate plate portion to the top of the elongate bone shank portion;
a buttress portion connected to the elongate plate portion at the second end extending transverse to the elongate plate portion with a part of the buttress portion projecting outwardly beyond one side edge of the elongate plate portion and downwardly beyond the lower surface;
the buttress portion having a front buttress surface facing away from the elongate plate portion and a rear surface facing along the elongate plate portion;
at least one hole through the part of the buttress portion from the rear surface to the front buttress surface, said at least one hole being arranged to receive at least one fastener passing through the part of the buttress portion from the rear surface for fastening the front buttress surface of the buttress portion to the bone head portion after the osteotomy;
the front buttress surface lying transverse to the longitudinal direction and forming a front most surface of the unitary member by which the division line of the bone head portion is supported and located by the front buttress surface for translocation thereon.