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1. (WO2015123548) ROTARY SURGICAL CUTTING TOOLS AND POWERED HANDPIECES

Pub. No.:    WO/2015/123548    International Application No.:    PCT/US2015/015865
Publication Date: Fri Aug 21 01:59:59 CEST 2015 International Filing Date: Sat Feb 14 00:59:59 CET 2015
IPC: A61B 17/32
A61B 17/16
B23B 31/00
A61B 17/00
Applicants: MEDTRONIC, INC.
Inventors: DEXTER, Shane S.
HEILIGER, Zachary
Title: ROTARY SURGICAL CUTTING TOOLS AND POWERED HANDPIECES
Abstract:
A rotary-driven surgical cutting tool. The tool includes an elongated shaft carrying a cutting head, and a self-energizing latch. The self-energizing latch is configured to provide a normal state and is further configured to self-transition from a deflected state toward the normal state. A maximum outer dimension of the self-energizing latch in the normal state differs from that in the deflected state. The tool can be quickly connected to the drive chuck of a powered handpiece, with the self-energizing latch effectuating an axial lock with the drive chuck upon insertion. The handpiece can include a coupling assembly for user-prompted release of the tool.