Patent ID: 9320619
Filing Date: 2016-04-26
CPC Classification: A61B,A61F

Claim Text:
1. A surgical instrument assembly for use during a surgical procedure to implant a stemless humeral component to replace the humeral head of a patient's humerus, comprising: a surgical punch configured to punch holes in the patient's humerus to receive a number of legs of the stemless humeral component, the surgical punch comprising a number of tines, a sizing instrument having a generally dome-shaped round body having a flattened upper surface and a planar opposite, lower surface, with a number of punch guide holes formed therein, and an elongated drill guide bore extending through a center of the sizing instrument from the upper surface to the lower surface, and a trial head component, comprising: (i) a generally hemispherically-shaped trial bearing surface, (ii) an underside surface opposite the trial bearing surface, and (iii) a center lug extending laterally away from the underside surface, wherein each of the punch guide holes is positioned in a location that aligns with one of the tines of the surgical punch, wherein each of the tines of the surgical punch is generally T-shaped when viewed in a cross-section extending orthogonal to a longitudinal axis of the tine, and wherein the center lug is configured to be frictionally secured to the sizing instrument when the center lug is inserted into the drill guide bore.