US 12,256,948 B1
System and method for forming a cavity in soft tissue and bone
Sohail K. Mirza, Fairfax, VA (US); Keith D. Paulsen, Lebanon, NH (US); and Ryan J. Halter, Orford, NH (US)
Assigned to Mary Hitchcock Memorial Hospital, for itself and on behalf of Dartmouth-Hitchcock Clinic and, Lebanon, NH (US); and The Trustees of Dartmouth College, Hanover, NH (US)
Filed by Mary Hitchcock Memorial Hospital, for itself and on behalf of Dartmouth-Hitchcock Clinic, Lebanon, NH (US); and The Trustees of Dartmouth College, Hanover, NH (US)
Filed on Jul. 5, 2019, as Appl. No. 16/504,185.
Application 16/504,185 is a division of application No. 15/469,461, filed on Mar. 24, 2017, granted, now 11,026,701.
Claims priority of provisional application 62/313,651, filed on Mar. 25, 2016.
Int. Cl. A61B 17/16 (2006.01)
CPC A61B 17/1628 (2013.01) [A61B 17/1626 (2013.01); A61B 2217/007 (2013.01); A61B 2562/00 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An anchoring device assembly for a powered drill for creating a cavity of desired dimensions at a desired location in a bone and comprising:
a cannula drill guide having a drill shaft receiving end and a drill shaft presenting end;
a spherical bearing assembly through which the cannula drill guide is disposed;
a pivot mounting on which the bearing assembly is mounted and providing radial motion of the bearing assembly about a bearing axis;
an x-y stage on which the pivot mounting is disposed, the x-y stage providing orthogonal slidable positioning of the pivot mounting along a plane that is substantially perpendicular to the bearing axis;
a base assembly with two mounting screw holes for fixturing the anchoring device to the bone, the base assembly disposed below and supporting the x-y stage;
the desired location for creating the cavity being outside of a region of the bone defined by the base assembly and determined by a radial position of the pivot mounting, an x-y disposition of the x-y stage, and an orientation of the bearing assembly relative to the pivot mounting.