US 12,295,594 B2
Non-rotational bone cutting tools and related systems and methods
Manfred K. Luedi, Jacksonville, FL (US)
Assigned to Medtronic Xomed, Inc., Jacksonville, FL (US)
Filed by Medtronic Xomed, Inc., Jacksonville, FL (US)
Filed on Mar. 28, 2024, as Appl. No. 18/620,902.
Application 18/620,902 is a continuation of application No. 17/515,862, filed on Nov. 1, 2021, granted, now 11,957,361.
Claims priority of provisional application 63/119,987, filed on Dec. 1, 2020.
Prior Publication US 2024/0260971 A1, Aug. 8, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/16 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/1628 (2013.01) [A61B 17/1615 (2013.01); A61B 17/1626 (2013.01); A61B 2017/00477 (2013.01); A61B 2017/00876 (2013.01); A61B 17/1695 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A surgical instrument, comprising:
a housing;
a first harmonic oscillator contained in the housing, the first harmonic oscillator comprising a mass-spring system;
an output member at least partially received in the housing and configured to be driven by the harmonic oscillator at a natural frequency of the mass-spring system to reversibly rotate about a longitudinal axis in alternating directions;
a dissection head having an attachment portion configured to be selectively driven in alternating rotational directions by the output member to remove material from a target bone, wherein the dissection head rotates clockwise in response to movement of the mass-spring system in a first direction, and further wherein the dissection head rotates counterclockwise in response to movement of the mass-spring system in a second direction opposite the first direction; and
a controller operable to initiate and stop the harmonic oscillator.