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

Claim 19:
20. A spinal implant comprising:
a. a spherical head; and
b. a head assembly comprising:
i. a first retaining ring;
ii. a second ring;
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
iv. a crown having a distal end that directly engages the second ring such that a distal force applied to the crown moves the second ring toward the first ring when the first ring is in the first groove to move the second ring out of the second groove and into the channel to directly engage the second ring with the first ring.