US 12,440,902 B2
Pin drive rotary surgical cutting tools and powered handpieces
Paul Cihak, Flower Mound, TX (US); and Zachary Heiliger, Nederland, CO (US)
Assigned to Medtronic PS Medical, Inc., Goleta, CA (US)
Filed by Medtronic PS Medical, Inc., Goleta, CA (US)
Filed on Jan. 8, 2024, as Appl. No. 18/406,691.
Application 18/406,691 is a continuation of application No. 17/132,223, filed on Dec. 23, 2020, granted, now 11,864,784.
Application 17/132,223 is a continuation of application No. 16/106,597, filed on Aug. 21, 2018, granted, now 10,905,453, issued on Feb. 2, 2021.
Application 16/106,597 is a continuation of application No. 15/018,990, filed on Feb. 9, 2016, granted, now 10,080,579, issued on Sep. 25, 2018.
Claims priority of provisional application 62/138,331, filed on Mar. 25, 2015.
Prior Publication US 2024/0138872 A1, May 2, 2024
Int. Cl. B23B 31/00 (2006.01); B23B 31/107 (2006.01)
CPC B23B 31/005 (2013.01) [B23B 31/008 (2013.01); B23B 31/1071 (2013.01); B23B 2231/0244 (2013.01); B23B 2231/0264 (2013.01); B23B 2231/22 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A drive chuck for receiving and supporting any one of a plurality of tools, comprising:
a hub-like body defining an interior passage configured to operably receive a tool tang;
a guide face defining a maximum diameter of the interior passage; and
first and second opposing drive pins configured to project radially inwardly from the guide face, the first opposing drive pin defining a first drive surface and a second drive surface and the second opposing drive pin defining a first drive surface and a second drive surface,
wherein the first and second opposing drive pins are symmetrical, yet offset relative to one another, and
wherein a major plane defined by the first drive surface of the first opposing drive pin is parallel to, but offset from, a major plane defined by the first drive surface of the second opposing drive pin relative to a rotational axis of the drive chuck.