US 12,329,420 B2
Implant receivers and connectors with grip grooves for rod fixation
Kevin Lee, Canton, MA (US); Samuel Jacobs, Acton, MA (US); and Aubrey Ortiz, Boston, MA (US)
Assigned to Medos International Sàrl, Le Locle (CH)
Filed by Medos International Sarl, Le Locle (CH)
Filed on Apr. 17, 2023, as Appl. No. 18/301,728.
Application 18/301,728 is a continuation of application No. 16/599,902, filed on Oct. 11, 2019, granted, now 11,653,953.
Prior Publication US 2023/0248397 A1, Aug. 10, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/70 (2006.01); A61B 17/86 (2006.01)
CPC A61B 17/7034 (2013.01) [A61B 17/86 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An implant, comprising:
a body having a rod-receiving recess, the body having first and second sides defining openings to the rod-receiving recess, the rod-receiving recess defining a central longitudinal rod axis extending between the openings of the first and second sides; and
a retaining member comprising a rod-facing surface, the retaining member configured to move with respect to the body to exert a force against a rod in the rod-receiving recess that is perpendicular to the central longitudinal rod axis and engage urge the rod against an inner surface of the rod-receiving recess the four edges of the two grip grooves;
wherein the rod-facing surface of the retaining member includes two grip grooves extending parallel to each other and the central longitudinal rod axis;
wherein each grip groove defines two edges where the grip groove intersects the rod-facing surface, the four edges of the two grip grooves together defining a circular radius about the central longitudinal rod axis,
wherein the engagement of the four edges of the grip grooves against the rod serves to restrain rotational movement of the rod about the central longitudinal rod axis;
wherein the rod-facing surface defines an initial seating position for a rod in the rod-receiving recess as the force is exerted against the rod by the retaining member, the rod having a radius sized to contact all four edges of the two grip grooves; and
wherein the initial seating position is configured to have the rod contact the four edges before contacting a region of the rod-facing surface between the two grip grooves, the region extending from one of the two grip grooves to another of the two grip grooves.