US 12,390,259 B2
Linear electric surgical hammer impact tool
Joshua Dittrich, Warsaw, IN (US); Neil Singer, Warsaw, IN (US); Ken Pasch, Warsaw, IN (US); Alexander Slocum, Bow, NH (US); and Nitin Goyal, Mclean, VA (US)
Assigned to Zimmer, Inc., Warsaw, IN (US)
Filed by Zimmer, Inc., Warsaw, IN (US)
Filed on Jul. 17, 2023, as Appl. No. 18/222,830.
Claims priority of provisional application 63/450,316, filed on Mar. 6, 2023.
Claims priority of provisional application 63/390,354, filed on Jul. 19, 2022.
Prior Publication US 2024/0024012 A1, Jan. 25, 2024
Int. Cl. A61B 17/92 (2006.01)
CPC A61B 17/92 (2013.01) [A61B 2017/924 (2013.01); A61B 2017/928 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A linear electric surgical hammer impact tool comprising:
a housing defining a cavity extending along a longitudinal axis of the housing;
a shuttle located inside the cavity and arranged along the longitudinal axis of the housing, the shuttle comprising a first end, a second end, and a wall extending from the first end to the second end, the wall including opposing exterior key grooves extending a length of an exterior portion of the wall;
a hammer assembly located at least partially within a proximal end of the shuttle and arranged along the longitudinal axis of the housing;
a linear electric motor configured to drive a piston along the longitudinal axis in a first direction and a second direction; and
an impact assembly located at least partially within a distal end of the shuttle;
wherein motion of the hammer assembly in a first direction causes the hammer assembly to contact the first end of the shuttle to generate a forward impact and motion of the hammer assembly in a second direction causes the hammer assembly to contact the second end of the shuttle to generate a reverse impact.