Auto injector with reconstitution handling support patent

ChangeBridge: Patent Apps - Medical Devices (A61M)

Published December 3rd, 2025

Detected March 26th, 2026

Summary

The USPTO has published a new patent application, US20260083917A1, for an auto-injector with reconstitution handling support. The patent describes a device designed to mix medicament components within the auto-injector before administration, with a processing unit controlling the mixing process and providing an onset signal.

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What changed

This document is a patent application (US20260083917A1) filed with the USPTO, detailing an auto-injector designed for administering medicaments that require reconstitution. The invention includes a housing, a cartridge receiver for a multi-component medicament, and a drive module controlled by a processing unit. The processing unit manages the plunger rod's movement to facilitate mixing of the medicament components and signals the onset of administration after a specified number of inversions.

This patent application does not impose direct regulatory obligations on companies. However, it represents a new technological development in the field of drug delivery devices. Companies involved in manufacturing auto-injectors or formulating multi-component drugs for such devices should be aware of this patent filing as it may impact future product development, intellectual property strategies, and market competition. No immediate compliance actions are required based solely on this patent application.

Source document (simplified)

← USPTO Patent Applications

AUTO INJECTOR WITH RECONSTITUTION HANDLING SUPPORT

Application US20260083917A1 Kind: A1 Mar 26, 2026

Inventors

Steen Jensen, Henrik Egesborg, Bjørn Knud Andersen, Martin Nørgaard Larsen, Johnny Elkjær

Abstract

Disclosed herein is an auto injector for administering a medicament, the auto injector comprising: a housing; a cartridge receiver configured to receive a cartridge comprising a first stopper and a cartridge compartment containing the medicament, the cartridge compartment having a first cartridge subcompartment containing a first medicament component of the medicament and a second cartridge subcompartment containing a second medicament component of the medicament; a drive module coupled to move a plunger rod between a retracted plunger rod position and an extended plunger rod position, the plunger rod being configured to move the first stopper; a processing unit coupled to the drive module, wherein the processing unit is configured to control the drive module to move the plunger rod from a first plunger rod position to a mix plunger rod position with a mix plunger rod speed, wherein the mix plunger rod position is selected to position the first stopper in a position wherein the first medicament component is mixed with the second medicament component, and to provide an onset signal after a number of completed inversions of the auto injector has been performed.