Autoinjector

US11541188B2 · kind B2 · utility

Assignee

• Sanofi-Aventis Deutschland GMBH · DE

Inventors

• Carsten Mosebach · Frankfurt am Main, DE
• Thomas Mark Kemp · Ashwell, GB

Key dates

• Filing date: Jul 24, 2019
• Grant date: Jan 3, 2023
• Expiry date: Mar 8, 2040

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2005/3267
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An autoinjector includes a case adapted to hold a medicament container having a needle, a needle shroud telescopically coupled to the case, and a plunger rotationally and slidably disposed in the case. The needle shroud is movable between a first extended position relative to the case in which the needle is covered and a retracted position relative to the case in which the needle is exposed. The plunger is rotatable relative to the case between a first rotational position in which the plunger is engaged to the case and a second rotational position in which the plunger disengages the case. The needle shroud is operably coupled to the plunger. When the needle shroud translates from the first extended position to the retracted position, the plunger rotates from the first rotational position to the second rotational position.