Granted Patent B2

US 12,616,578 · App. 19/411,078 · Granted May 5, 2026

Inventors: Donald E. Running (Holland, MI); Robert J. Ball (West Olive, MI); Jason Slone (Silver Lake, IN)

Assignee: Shoulder Innovations, Inc.

A61F2/4081A61B17/1778A61F2/30749A61F2002/30616A61F2002/4085

Abstract

Claims (34)

1 . A reverse shoulder implant, comprising:

a baseplate configured to be secured to a glenoid of a scapular bone of a medical patient, the baseplate having a lateral end, a medial end, and a baseplate central channel extending through the baseplate from the lateral end to the medial end;

a central screw configured to at least partially pass through the central channel;

a locking nut having a cylindrical shape, and an external thread on an outside surface of the locking nut, the locking nut having a surface configured to engage a surface of the central screw when the central screw and baseplate are implanted within the medical patient, wherein the external thread is configured to couple the locking nut with the baseplate central channel;

a glenosphere, having a lateral, convex articular surface, and a glenosphere central channel extending from the convex articular surface to an opposite side of the convex articular surface, wherein the glenosphere is configured to interface with the baseplate; and

a glenosphere screw, sized to pass at least partially within the glenosphere central channel and sized to pass at least partially through the locking nut to couple the glenosphere to the baseplate.

2 . The reverse shoulder implant of claim 1 , wherein the glenosphere is configured to at least partially surround an external surface of the baseplate.

3 . The reverse shoulder implant of claim 1 , wherein the baseplate has a circular shape.

4 . The reverse shoulder implant of claim 1 , wherein the glenosphere is configured to surround the baseplate.

5 . The reverse shoulder implant of claim 1 , wherein the glenosphere is configured to be secured to the baseplate with a Morse taper.

6 . The reverse shoulder implant of claim 1 , wherein a diameter of the locking nut is greater than a length of the locking nut.

7 . The reverse shoulder implant of claim 1 , wherein the locking nut comprises a rotational control feature configured to receive a tool to enable twisting of the locking nut to secure it to the central screw.

8 . The reverse shoulder implant of claim 1 , wherein the central screw has a length of about 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm, 10 mm, 10.5 mm, 11 mm, 11.5 mm, 12 mm, 12.5 mm, 13 mm, 13.5 mm, 14 mm, 14.5 mm, or 15 mm.

9 . The reverse shoulder implant of claim 1 , wherein the central channel defines a surface integral with the central screw.

10 . The reverse shoulder implant of claim 1 , wherein the central screw includes a rotational control feature.

11 . The reverse shoulder implant of claim 1 , wherein the central screw comprises a central channel configured to house a primary screw.

12 . The reverse shoulder implant of claim 1 , wherein the glenosphere is coupled indirectly to the baseplate.

13 . A reverse shoulder implant, comprising:

a baseplate configured to be secured to a glenoid of a scapular bone of a medical patient, the baseplate having a lateral end, a medial end, and a baseplate central channel extending through the baseplate from the lateral end to the medial end;

a central screw configured to at least partially pass through the central channel;

a locking nut having a cylindrical shape, an external thread on an outside surface of the locking nut, the locking nut having a surface configured to engage a surface of the central screw when the central screw and baseplate are implanted within the medical patient, wherein the external thread is configured to engage the baseplate central channel; and

a glenosphere, having a lateral, convex articular surface, and a glenosphere central channel extending from the convex articular surface to an opposite side of the convex articular surface, wherein the glenosphere is configured to interface with the baseplate; and

a glenosphere screw, sized to pass at least partially within the glenosphere central channel and sized to pass at least partially through the locking nut.

14 . The reverse shoulder implant of claim 13 , wherein the glenosphere is configured to at least partially surround an external surface of the baseplate.

15 . The reverse shoulder implant of claim 13 , wherein the baseplate has a circular shape.

16 . The reverse shoulder implant of claim 13 , wherein the glenosphere is configured to surround the baseplate.

17 . The reverse shoulder implant of claim 13 , wherein the glenosphere is configured to be secured to the baseplate with a Morse taper.

18 . The reverse shoulder implant of claim 13 , wherein a diameter of the locking nut is greater than a length of the locking nut.

19 . The reverse shoulder implant of claim 13 , wherein the locking nut comprises a rotational control feature configured to receive a tool to enable twisting of the locking nut to secure it to the central screw.

20 . The reverse shoulder implant of claim 13 , wherein the central screw has a length of about 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm, 10 mm, 10.5 mm, 11 mm, 11.5 mm, 12 mm, 12.5 mm, 13 mm, 13.5 mm, 14 mm, 14.5 mm, or 15 mm.

21 . The reverse shoulder implant of claim 13 , wherein the central channel defines a surface integral with the central screw.

22 . The reverse shoulder implant of claim 13 , wherein the central screw includes a rotational control feature.

23 . The reverse shoulder implant of claim 13 , wherein the central screw comprises a central channel configured to house a primary screw.

24 . The reverse shoulder implant of claim 13 , wherein the glenosphere is coupled indirectly to the baseplate.

Assignments (1)

Continuity (7)

References Cited (400)