US 12,268,573 B2
Tool for use in dental implant treatments and retention element
Damien Maury, Basel (CH); Stéphane Courvoisier, Basel (CH); Azagen Mootien, Basel (CH); and Florian Dalla Torre, Basel (CH)
Assigned to STRAUMANN HOLDING AG, Basel (CH)
Appl. No. 17/285,578
Filed by STRAUMANN HOLDING AG, Basel (CH)
PCT Filed Oct. 14, 2019, PCT No. PCT/EP2019/077793
§ 371(c)(1), (2) Date Apr. 15, 2021,
PCT Pub. No. WO2020/078911, PCT Pub. Date Apr. 23, 2020.
Claims priority of application No. 18200552 (EP), filed on Oct. 15, 2018.
Prior Publication US 2022/0000589 A1, Jan. 6, 2022
Int. Cl. A61C 8/00 (2006.01); B25B 15/00 (2006.01); B25B 23/00 (2006.01)
CPC A61C 8/0089 (2013.01) [B25B 15/001 (2013.01); B25B 23/0035 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A tool for use in dental implant treatments, the tool comprising:
a handle;
a shaft connected to the handle, the shaft comprises a mounting section on the distal end thereof, the mounting section comprising:
a cavity that is present at the distal end of the shaft and extends from a most distal end surface into, and through, the shaft such that the shaft is hollow for at least a portion of the way through the shaft, and
at least one side opening is formed in an outer surface of the distal end of the shaft and extends along the shaft; and
a retention element configured to be held inside the mounting section of the shaft and configured to hold an implant driver;
wherein:
the handle, the shaft, and the mounting section are aligned along a longitudinal direction of the tool;
the retention includes two end portions and a middle portion having an outer diameter narrower than that of the end portions, the middle motion and at least one of the end portions being hollow such that the implant driver may be received within the retention element;
the middle portion of the retention element is flexible and radially expandable such that insertion of the implant driver into the retention element pushes the narrower middle portion of the retention element outwards, and the implant driver is held inside the retention element via friction;
the shaft includes a shaft drive portion that is configured to engage and transmit torque to implant driver held by the retention element to drive the implant driver in the dental implant treatments; and
the shaft drive portion is an internal surface of the shaft distal of the retention element that is configured to engage and transmit torque to an outer surface of the implant driver at a position where the implant driver extends outside of the retention element along a longitudinal axis of the shaft.