Patent ID: 11931077
Assignee: WARSAW ORTHOPEDIC, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 18:
19. A spinal implant comprising:
a. a spherical head; and
b. a head assembly comprising:
i. a first retaining ring;
ii. a second ring; and
iii. a receiver having spaced apart arms that define an implant cavity, the implant cavity configured to receive a spinal rod, the receiver having a bottom opening in communication with an internal surface, the bottom opening configured to receive the spherical head, the internal surface defining a first groove, a second groove spaced apart from the first groove, and a circumferential channel located in between the first groove and the second groove,

wherein the first groove is configured to receive the first ring and the second groove is configured to receive the second ring, and
wherein the second groove includes a projection that is disposed in a recess of the second ring when the second ring is positioned in the second groove.