The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 2024
Filed:
Jan. 22, 2018
Sanofi, Paris, FR;
Michael Jugl, Frankfurt am Main, DE;
Stefan Blancke, Frankfurt am Main, DE;
Axel Teucher, Frankfurt am Main, DE;
Ralph Donald Quentin Collings, Bristol Bristol, GB;
James Robert Coop, Bristol Bristol, GB;
James Anthony West, Bristol Bristol, GB;
Stephen Francis Gilmore, Bristol Bristol, GB;
Daniel David Higgins, Bristol Bristol, GB;
Mark Digby Teucher, Bristol Bristol, GB;
Anthony Paul Morris, Warwick, GB;
Matthew Meredith Jones, Warwick, GB;
William Geoffrey Arthur Marsh, Warwick, GB;
Samuel Keir Steel, Warwick, GB;
Sanofi, Paris, FR;
Abstract
A drive train for a wind-up injection device is described. The drive train includes a torsional energy storage adapted to be loaded or unloaded by a rotatable element, a rotatable user handle, a rotationally driveable expelling mechanism adapted to expel the liquid drug, and a clutch element coupled with the torsional energy storage via the rotatable element and including a ratchet for maintaining the rotatable element at one of a number of discrete angular positions against the torque of the torsional energy storage. The clutch element is adapted to transmit the torque from the user handle to the torsional energy storage, or alternatively from the torsional energy storage to the expelling mechanism. The ratchet is switchable from one position to an adjacent position by a torque transmitted from the user handle to the torsional energy storage. The drive train is adapted to dampen torque peaks visco-elastically and/or visco-frictionally.