US 12,376,876 B2
Rotary oscillating and reciprocating surgical tool
Peter L. Bono, Bingham Farms, MI (US); James D. Lark, King of Prussia, PA (US); and John S. Scales, Clinton Township, MI (US)
Assigned to Globus Medical, Inc., Audubon, PA (US)
Filed by GLOBUS MEDICAL, INC., Audubon, PA (US)
Filed on Apr. 9, 2024, as Appl. No. 18/630,536.
Application 18/630,536 is a continuation of application No. 17/837,678, filed on Jun. 10, 2022, granted, now 11,974,768.
Application 17/837,678 is a continuation of application No. 16/784,331, filed on Feb. 7, 2020, granted, now 11,357,529, issued on Jun. 14, 2022.
Application 16/784,331 is a continuation in part of application No. 16/168,011, filed on Oct. 23, 2018, granted, now 11,000,306, issued on May 11, 2021.
Application 16/784,331 is a continuation in part of application No. 15/814,891, filed on Nov. 16, 2017, granted, now 10,835,263, issued on Nov. 17, 2020.
Claims priority of provisional application 62/803,039, filed on Feb. 8, 2019.
Claims priority of provisional application 62/575,775, filed on Oct. 23, 2017.
Claims priority of provisional application 62/423,624, filed on Nov. 17, 2016.
Prior Publication US 2024/0252195 A1, Aug. 1, 2024
Int. Cl. A61B 17/32 (2006.01); A61B 17/3207 (2006.01)
CPC A61B 17/32002 (2013.01) [A61B 17/320758 (2013.01); A61B 2017/320028 (2013.01); A61B 2017/320032 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for removing bone comprising:
providing a surgical tool having an oscillating cutter for cutting a bone, comprising:
a housing;
a motor mounted in the housing and having a rotatable output shaft;
a cutter assembly having a cutter shaft carried by the housing, a cutter on a distal end of the cutter shaft and a gear disposed proximally of the cutter; and
a first driver coupled to the output shaft and including:
a crank coupled to the motor output shaft; and
a crank bearing radially offset from a center of rotation of the crank;
a second driver coupled to the first driver downstream thereof, the second driver including a follower assembly having:
a follower having a pair of arms defining a channel and a gear rack in mesh with the gear of the cutter shaft; and
a follower bearing disposed in the channel and receiving the crank bearing such that rotation of the crank bearing causes rotary oscillation of the follower;
wherein rotary oscillation of the follower causes oscillating rotation of the cutter shaft gear,
removing the bone using the surgical tool.