Disclosed is an auto injector for administering a medicament. The auto injector comprising: a housing; a cartridge receiver configured to receive a cartridge assembly comprising a cartridge (700) and a cartridge code (1000) feature, the cartridge containing the medicament; a code sensor configured to read the cartridge code feature; a drive module coupled to move a plunger rod; and a processing unit coupled to the code sensor and the drive module. The processing unit being configured to: receive from the code sensor a code signal indicative of the cartridge code feature; control the drive module to move the plunger rod to a first plunger rod position, the first plunger rod position being based on the code signal; receive a trigger event; control the drive module to move the plunger rod to a second plunger rod position following reception of the trigger event.

The disclosed technology relates to medicinal fluid injection devices. In one aspect, a medicinal fluid injection device includes a housing having an opening in a side surface thereof, a storage container arranged inside the housing and configured to store a medicinal fluid, an injection needle connected to the storage container and configured to inject the medicinal fluid when stored in the storage container through the opening, and a cover body covering the opening, wherein the cover body includes a cover part configured such that the a shape of the cover part changes according to air pressure caused by the injection needle.

A plunger assembly (100) for use with an auto-injector and comprising: a cartridge (102); and a firing assembly (103) comprising a plunger rod (104) and a drive portion (105), the firing assembly (103) being axially moveable relative to the cartridge (102), wherein the firing assembly (103) is configured to couple to the cartridge (102) at a coupling point along a length of the cartridge (102) to fix an axial position of the drive portion (105) relative to the cartridge (102), and wherein the length of the cartridge (102) is configured to be extended in a rearward direction such that the coupling point and a forward end (106) of the plunger rod (104) move rearwards.

The present invention relates to a delivery device for delivering predetermined amounts of fluid, comprising a body (10), a container (16) filled with fluid to be delivered arranged inside said body, said container comprising an opening for expelling said fluid and a wall (18) movable inside said container (16), a threaded plunger rod (46) arranged movable inside said body (10) in the longitudinal direction and in contact with said movable wail (18), a manually operated push means (14, 60) movable in the longitudinal direction capable of, upon operation, move said plunger rod (46) towards said movable wall (18), thereby expelling fluid, and means for transforming a generally linear movement of said push means (14, 60) to a rotational movement of said plunger rod (46).

A syringe includes a dosage setter operatively coupled to a plunger rod and comprising a rotatable body that comprises a set of one or more stops for engaging the set of one or more protrusions of the plunger rod depending on at least a rotational position of the set of one or more stops relative to the set of one or more protrusions, wherein a first rotational adjustment associated with the dosage setter is configured to set a first dosage increment by adjusting a relative axial position between the rotatable body and the plunger rod, and a second rotational adjustment associated with the dosage setting assembly is configured to set a second dosage increment that is larger than the first dosage increment by adjusting a relative rotational alignment between the set of one or more stops and the set of one or more protrusions.

An assembly for a medication delivery device having a body, a piston rod and a setting nut. The piston rod is rotatable relative to the body in a dose setting state and is axially movable in a distal direction with respect to the body in a dose delivering state. The setting nut is secured against rotational movement with respect to the body, but is axially movable relative to the body, being helically coupled with the piston rod to axially travel in the proximal direction for setting a dose of a medication due to a helical movement of the setting nut with respect to the piston rod when the piston rod is rotated in the dose setting state, and is able to axially travel in the distal direction for delivering the set dose of the medication when the piston rod is axially moved in the dose delivering state of the assembly.

A medicament delivery device is presented having a housing, a delivery member cover slidably arranged in the housing, a medicament container housing arranged in the housing, a forward-biased rotator structure configured to move the medicament container housing in a forward direction in the housing, wherein the delivery member cover is configured to be moved axially from an extended position relative to the housing to a retracted position, thereby causing the rotator structure to rotate from a first rotator position to a second rotator position, and a forward-biased plunger rod extending axially inside the rotator structure and having a first axial engagement position with the rotator structure when the rotator structure is in the first rotator position and the second rotator position, the rotator structure having a first rotator guide track structure configured to cooperate with an inner surface structure of the housing.

A device for coupling to a fluid connector of an IV administration set to resist contamination of the fluid connector and IV administration set and permit priming of the IV administration set. The device including a cover body having a cavity for receiving the fluid connector, a priming passage for priming fluid from the IV administration set through the fluid connector, and a coupling tab extending from the cover body, the coupling tab permitting the cover body to be coupled to a length of an IV line or other portion of the IV administration set to resist contamination and permit priming of the IV administration set.

Implementations of the present disclosure are directed to conserving energy of an injection device that includes an energy source configured to power an electronic component, a priming component configured to generate a trigger, a reactant configured to generate an instantiation signal in response to the trigger, and a sensor configured to detect and process the instantiation signal and generate an activation signal to activate the energy source.

A medicament delivery device is presented having a housing with a proximal end and a distal end, a medicament container arranged within the housing, a biased delivery member cover associated with the housing and movable in relation to the housing, a biased plunger rod associated with the medicament container and movable in relation to the housing, a tubular rotator associated with both the delivery member cover and the biased plunger rod, and a cap assembly associated with the housing, wherein a gap is defined between the proximal end of the biased plunger rod and the stopper of the medicament container when the medicament delivery device is in an assembled state, and wherein the proximal end of the biased plunger rod is in contact with the stopper of the medicament container when the medicament delivery device is in a calibrated state.