US 11,653,953 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 SARL, Le Locle (CH)
Filed by Medos International Sarl, Le Locle (CH)
Filed on Oct. 11, 2019, as Appl. No. 16/599,902.
Prior Publication US 2021/0106360 A1, Apr. 15, 2021
Int. Cl. A61B 17/70 (2006.01); A61B 17/86 (2006.01)
CPC A61B 17/7034 (2013.01) [A61B 17/86 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An implant, comprising:
a body having a rod-receiving recess, the body having first and second sides defining opposing first and second lateral openings to the rod-receiving recess, the rod-receiving recess defining a central longitudinal rod axis extending between the first and second lateral openings of the first and second sides, wherein at least a portion of the rod-receiving recess is formed by an inner surface of the implant, the inner surface defining 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 inner surface, the four edges of the two grip grooves together defining a circular radius about the central longitudinal rod axis; and
a retaining member configured to move with respect to the body, exert a force against a rod in the rod-receiving recess that is perpendicular to the central longitudinal rod axis, and engage the rod against the four edges of the two grip grooves,
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, and
wherein the inner surface defines an initial seating position for a rod in the rod-receiving recess before 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,
wherein the initial seating position is configured to have the rod contact the four edges before contacting a region of the inner surface between the two grip grooves, the region extending from one of the two grip grooves to another of the two grip grooves.