Pen-type drug injection device and electronic add-on monitoring module for monitoring and logging dose setting and administration

US9782543B2 · kind B2 · utility

Assignee

• Sanofi-Aventis Deutschland GMBH · DE

Inventors

• Jasmin Groeschke · Frankfurt am Main, DE
• Alexander Allerdings · Frankfurt am Main, DE
• Jan-Peter Spengler · Frankfurt am Main, DE
• Christoph Dette · Frankfurt am Main, DE
• Matthias Scharf · Frankfurt am Main, DE
• Andreas Bode · Bellevue, US
• Michael Schrack · Rübgarten, DE

Key dates

• Filing date: Feb 8, 2013
• Grant date: Oct 10, 2017
• Expiry date: Feb 8, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G16H40/67
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A monitoring device for monitoring operation of a drug delivery device and to a respective drug delivery device is presented in which a fastening member releasably attaches the monitoring device to an axially elongated housing of the drug delivery device, a sliding member is shiftable relative to the fastening member in an axial direction and being adapted to operably engage with at least one dose setting component of the drug delivery device to follow an axial displacement of the dose setting component relative to the housing component, a first sensor arrangement for detecting a rotation of the dose setting component relative to the fastening member, a second sensor arrangement for detecting an axial displacement of the sliding member relative to the fastening member, and a processing member coupled to the first and to the second sensor arrangements to process first and second signals obtainable from the first and from the second sensor arrangements for determining the size of a dose dispensed by the drug delivery device.