Abstract: Provided herein is an end-of-dose indicator for a medical injection device including a housing having a proximal end, a distal end, and a sidewall therebetween defining an interior, the housing configured to be secured to a proximal end of a medical injection device. The indicator also includes a switch arranged within the housing interior and having an open position and a closed position, a circuit, and one or more indicators in electrical communication with the circuit. When in the closed position, the switch triggers the circuit to activate the indicator.

Abstract: Provided herein is a housing assembly for a drug delivery device, including a first housing part having a first proximal end comprising a first engagement portion and a second engagement portion, a first distal end, and a first sidewall therebetween defining a first longitudinal axis and a first interior, the first sidewall comprising one or more windows therethrough; and a second housing part having a second proximal end, a second distal end comprising a third engagement portion and a fourth engagement portion, and a second sidewall therebetween defining a second longitudinal axis and a second interior.

Abstract: Provided herein is a shield removal assembly for an auto injector including a cap remover configured to be grasped by a user, a retainer received within the cap remover and having at least one grasping feature configured to engage a proximal edge of an auto injector needle shield. The shield removal assembly is configured such that the needle shield of the auto injector can be advanced through the shield removal assembly from a first position in which the at least one grasping feature is located proximally of the proximal edge of the needle shield to a second position in which the at least one grasping feature abuts the proximal edge of the needle shield.

Abstract: Oxygen production process of VSA type from a flow of air, implementing at least one group of at least 3 adsorbers installed in parallel and following the same VSA cycle comprising, in succession, a phase of adsorption at the high pressure of the cycle, a phase of desorption at pressures lower than the high pressure of the cycle, a phase of repressurization of the adsorber to the high pressure of the cycle, characterized in that, periodically or exceptionally: a) at least one adsorber of the group of adsorbers is isolated so as to no longer follow the pressure cycle, b) the adsorbent contained in the adsorber isolated in the step a) is regenerated by raising the temperature, and c) the adsorber regenerated in the step b) is re-incorporated in the group of adsorbers so as to once again follow the pressure cycle.

Abstract: Oxygen production process of VSA type from a flow of air, implementing at least one group of at least 3 adsorbers installed in parallel and following the same VSA cycle comprising, in succession, a phase of adsorption at the high pressure of the cycle, a phase of desorption at pressures lower than the high pressure of the cycle, a phase of repressurization of the adsorber to the high pressure of the cycle, characterized in that, periodically or exceptionally: a) at least one adsorber of the group of adsorbers is isolated so as to no longer follow the pressure cycle, b) the adsorbent contained in the adsorber isolated in the step a) is regenerated by raising the temperature, and c) the adsorber regenerated in the step b) is re-incorporated in the group of adsorbers so as to once again follow the pressure cycle.