Patent ID: 11877779
Assignee: XTANT MEDICAL HOLDINGS, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 16:
17. A bone plate system comprising:
a bone plate body having an upper surface and a lower surface;
a throughbore of the bone plate body extending between the upper and lower surfaces of the bone plate body along a central, longitudinal axis of the throughbore;
a bone screw having a head portion and a threaded shank portion, the threaded shank portion configured to be advanced into the throughbore and driven into bone;
a slider slidably connected to the bone plate body to contact the bone screw as the bone screw is advanced into the throughbore, the slider configured to be slid along a path by the bone screw from a laterally inward, interference position wherein the slider inhibits bone screw back out from the throughbore to a laterally outward, clearance position wherein the slider permits the bone screw head portion to be advanced into the throughbore and seated against the bone plate body;
supports of the bone plate body on opposite sides of the slider and having a minimum width therebetween transverse to the path of the slider;
a resilient member assembled with the slider and having a maximum dimension when unloaded that is greater than the minimum width between the supports of the bone plate body;
the slider configured to deflect a center portion of the resilient member between the supports of the bone plate body and along the path of the slider as the bone screw contacts the slider and shifts the slider from the laterally inward, interference position to the laterally outward, clearance position;
side portions of the resilient member on opposite sides of the center portion configured to contact the supports of the bone plate body with the slider in the laterally outward, clearance position and urge the slider toward the laterally inward, interference position upon the bone screw head portion seating against the bone plate body;
wherein the bone plate body includes a recess adjacent each of the supports and the resilient member side portions extend into respective ones of the recesses with the slider in the interference position; and
wherein the supports include support surfaces on the opposite sides of the slider, each support surface including a first surface portion spaced by a gap from one of the resilient member side portions with the slider in the interference position, the first surface portion contacting the respective one resilient member side portion with the slider in the clearance position.