US 12,262,897 B2
Bone and tissue resection devices and methods
Stephen Bornhoft, Raynham, MA (US); John C. Voellmicke, Franklin, MA (US); Eric Buehlmann, Duxbury, MA (US); Roman Lomeli, Plymouth, MA (US); Thomas Gamache, Westport, MA (US); Katherine Selover, Westport, MA (US); and Duane Jeffrey Enck, West Palm Beach, FL (US)
Assigned to Medos International Sàrl, Le Locle (CH)
Filed by Medos International Sàrl, Le Locle (CH)
Filed on Jun. 27, 2022, as Appl. No. 17/850,990.
Application 17/850,990 is a continuation of application No. 16/390,995, filed on Apr. 22, 2019, granted, now 11,389,178.
Prior Publication US 2022/0338880 A1, Oct. 27, 2022
Int. Cl. A61B 17/16 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/1611 (2013.01) [A61B 17/1628 (2013.01); A61B 17/1637 (2013.01); A61B 2017/00402 (2013.01); A61B 2017/00407 (2013.01); A61B 2017/00539 (2013.01); A61B 2017/00544 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A bone and tissue resection device, comprising:
a blade having a distal cutting edge configured to perform a cutting action that produces a plug or core from a media being cut by the cutting edge;
a drive mechanism arranged to transfer an oscillating force to the cutting edge for oscillating the cutting edge, the drive mechanism comprising:
an input shaft configured to continuously rotate about a first central axis, the input shaft defining an eccentric section with a second central axis that is offset from the first central axis;
an oscillating shaft offset from the input shaft and configured to rotationally oscillate about a third central axis, the oscillating shaft comprising a bore extending perpendicular to the third central axis;
a connector rotatably coupled around the eccentric section, the connector comprising a sleeve extending perpendicular to the second central axis;
a pin extending perpendicular to the third central axis, the pin having a first end disposed within the bore of the oscillating shaft and a second end disposed within the sleeve of the connector;
a shield positioned to block contact with a portion of the cutting edge; and
a depth adjustment mechanism configured to translate the cutting edge along a proximal-distal axis of the shield to adjust an axial position of the cutting edge relative to the shield.