US 12,403,011 B2
Baseplate of a modular shoulder joint prosthesis and related methods for implanting the same
Stephen J. Orphanos, Bridgewater, MA (US); Brian Otrando, Cumberland, RI (US); William Murphy, Brockton, MA (US); and Steven Reppucci, Lakeville, MA (US)
Assigned to DePuy Ireland Unlimited Company, Ringaskiddy (IE)
Filed by DePuy Ireland Unlimited Company, Ringaskiddy (IE)
Filed on Feb. 16, 2024, as Appl. No. 18/444,376.
Application 18/444,376 is a continuation of application No. 17/036,706, filed on Sep. 29, 2020, granted, now 11,903,839.
Application 17/036,706 is a continuation of application No. 16/044,473, filed on Jul. 24, 2018, granted, now 10,813,769, issued on Oct. 27, 2020.
Prior Publication US 2024/0341967 A1, Oct. 17, 2024
Int. Cl. A61F 2/40 (2006.01)
CPC A61F 2/4014 (2013.01) [A61F 2/4081 (2013.01); A61F 2002/4018 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A collet for use in a shoulder joint implant, comprising:
a cylindrical body having an annular base portion on a distal portion thereof, at least three radially compressible arms, and a plurality of open-ended slots disposed between the radially compressible arms, each slot of the plurality of open-ended slots having a base end that is closed and terminates proximate to or at the annular base portion and an open-end that is open and terminates at a proximal-most end of the cylindrical body, the open-ended slots being spaced about a circumference of the cylindrical body;
one or more lateral protrusions protruding radially outward from at least one of a radially compressible arm of the at least three radially compressible arms or the annular base portion, the one more lateral protrusions being configured to provide resistance to torsional rotation; and
an annular protrusion disposed on a proximal portion of the cylindrical body, distal of the proximal-most end of the cylindrical body, the annular protrusion protruding radially outward from a main body portion of one or more radially compressible arms of the at least three radially compressible arms, and the annular protrusion being configured to secure the collet at a predetermined depth.