Patent ID: 8486076

Claim:
An oscillating surgical rasp for use in the surgical preparation of a glenoid of a patient prior to implantation of an augmented glenoid prosthesis, the oscillating surgical rasp comprising: an attachment head configured to be secured in a chuck of an oscillating tool, and a cutting head secured to the attachment head, the cutting head comprising a cutting surface extending posteriorly from a longitudinal axis of the oscillating surgical rasp, the cutting surface having a plurality of cutting teeth arranged in a geometry that, when oscillated along a predetermined path in contact with the glenoid of the patient, corresponds with the geometry of the augmented glenoid prosthesis, wherein: the plurality of cutting teeth of the cutting head comprises a superior cutting tooth and an inferior cutting tooth that is positioned inferiorly relative to the superior cutting tooth, an anterior end of the superior cutting tooth is spaced apart from an anterior end of the inferior cutting tooth by a first distance, and a posterior end of the superior cutting tooth is spaced apart from a posterior end of the inferior cutting tooth by a second distance that is shorter than the first distance.