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:
Apr. 14, 2025
Filed:
Dec. 16, 2019
Sanofi, Paris, FR;
Michael Helmer, Frankfurt am Main, DE;
Sanofi, Paris, FR;
Abstract
Implementations of a present disclosure are directed to a drug delivery device including a reservoir, a stopper, and a light emitting-detecting system. The reservoir includes a wall defining a proximal end and a distal end. The stopper includes an optically reflecting element. The stopper is configured to expel a portion of a medicament stored within the reservoir by moving within the reservoir in a direction from the distal end to the proximal end, such that a stopper position is indicative of an amount of the medicament within the reservoir. A light emitting system of the light emitting-detecting system is configured to provide a light signal towards the stopper from the distal end. A light detecting system of the light emitting-detecting system is configured to detect a reflected light signal provided by a reflection of the light signal on the optically reflecting element of the stopper and to provide an electric signal in response to detecting the reflected light signal.