US 11,806,023 B2
Orthopedic reamer for bone preparation, particularly glenoid preparation
Matthew J. Purdy, Winona Lake, IN (US); Lucile Ferrand, Montbonnot (FR); and Pierric Deransart, Saint Martin d'uriage (FR)
Assigned to TORNIER SAS, Montbonnot Saint Martin (FR)
Filed by Tornier SAS, Montbonnot Saint Martin (FR)
Filed on Nov. 11, 2021, as Appl. No. 17/454,502.
Application 17/454,502 is a division of application No. 16/395,968, filed on Apr. 26, 2019, granted, now 11,207,078.
Application 16/395,968 is a continuation of application No. 13/291,855, filed on Nov. 8, 2011, granted, now 10,314,596, issued on Jun. 11, 2019.
Claims priority of provisional application 61/411,429, filed on Nov. 8, 2010.
Claims priority of application No. 1059302 (FR), filed on Nov. 10, 2010.
Prior Publication US 2022/0061857 A1, Mar. 3, 2022
Int. Cl. A61B 17/16 (2006.01); A61B 17/17 (2006.01); A61F 2/40 (2006.01)
CPC A61B 17/1615 (2013.01) [A61B 17/1684 (2013.01); A61B 17/1697 (2013.01); A61B 17/1617 (2013.01); A61B 17/1659 (2013.01); A61B 17/1666 (2013.01); A61B 17/1778 (2016.11); A61B 2017/1602 (2013.01); A61F 2/4081 (2013.01); Y10T 408/8953 (2015.01)] 18 Claims
OG exemplary drawing
 
1. An orthopedic milling machine comprising:
an orthopedic guide pin including a bone engaging end and a free end opposite to the bone engaging end, a length of the guide pin including the bone engaging end;
a burr including:
a hub, the burr being configured for rotation about an axis of the hub, the hub including a bore adapted to receive the orthopedic guide pin, wherein the bore is centered on the axis of the hub and passes axially through the hub, wherein the hub includes:
a transverse slot that extends radially in the hub and that connects a proximal end of the hub to a distal end of the hub, the transverse slot extending circumferentially from a first hub edge to a second hub edge, the first hub edge being spaced apart from the second hub edge by the transverse slot, wherein a width of the transverse slot is measured from the first hub edge to the second hub edge, the width being at least as large as a diameter at any location along the length of the guide pin; and
a milling body that extends transversely to the hub and outwardly surrounds a portion of a periphery of the hub while leaving an opening of the transverse slot open that is radially opposite to the bore; and
a sleeve adapted to be simultaneously coupled to the hub and engaged around the orthopedic guide pin to drive the burr around the axis of the hub, wherein the hub further comprises two diametrically opposed flats that can be used to immobilize the burr from rotating around the axis of the hub to facilitate the coupling between the sleeve and the hub,
wherein the milling body includes a crown spaced radially from the hub, and a plurality of lugs that connect the hub and the crown in a radial direction and that are distributed around the hub, the lugs each including a bone etching relief,
wherein the opening of the transverse slot in the hub opens into a free volume of space defined between two consecutive lugs, and the crown,
a transverse passage provided in a portion of the crown extending along an outer periphery of the burr between said two consecutive lugs, the transverse passage defining a through slot through said portion of the crown, whereby
the burr can be moved laterally toward the guide pin at any location along the length of the guide pin so that the guide pin passes through the transverse passage into the free volume of space, and through the transverse slot until the guide pin is positioned in the bore.