US 12,016,584 B2
End effector for a surgical arm
Nicolas Roche, Saint Medard en Jalles (FR); Nicolas Bidegaimberry, Gradignan (FR); and David Rigotto, Saint Selve (FR)
Assigned to Zimmer Biomet Spine, Inc., Westminster, CO (US)
Filed by Zimmer Biomet Spine, Inc., Westminster, CO (US)
Filed on Mar. 9, 2021, as Appl. No. 17/196,637.
Claims priority of provisional application 62/990,275, filed on Mar. 16, 2020.
Prior Publication US 2021/0282794 A1, Sep. 16, 2021
Int. Cl. A61B 17/29 (2006.01); A61B 17/28 (2006.01); A61B 90/50 (2016.01)
CPC A61B 17/29 (2013.01) [A61B 90/50 (2016.02); A61B 2017/2845 (2013.01); A61B 2017/2944 (2013.01); A61B 2017/2946 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An end effector for a surgical arm comprising:
a housing extending along a longitudinal axis, the housing comprising a proximal portion and a distal portion;
a stem secured to the proximal portion of the housing, the stem configured to releasably couple the end effector to the surgical arm;
opposing jaws pivotably coupled to the housing, and extending outwardly from the distal portion of the housing to form a tool opening;
a driving body translatable within the housing along the longitudinal axis, the driving body operable to open the opposing jaws and expand the tool opening when the driving body translates proximally and to close the opposing jaws and contract the tool opening when the driving body translates distally;
a drive spring positioned within the housing to engage the proximal portion of the housing and the driving body to bias the driving body distally; and
a lock body extending through the housing, the lock body movable between a locked position and an unlocked position, the lock body configured to engage the housing and the driving body in the locked position to limit distal translation of the driving body with respect to the housing.