Patent ID: 11957880
Assignee: ASCENDIS PHARMA A/S
Field: nan (nan)
Classification: CPC nan | IPC A

Claim 0:
1. 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, a second 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, the cartridge further comprising a bypass section providing fluid communication between the first cartridge subcompartment and the second cartridge subcompartment;
an orientation sensor configured to detect an orientation of the cartridge or an orientation of the auto injector or both;
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; and
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
provide an onset signal after a number of completed inversions of the auto injector has been performed;, wherein the cartridge receiver is configured to receive a cartridge assembly comprising the cartridge and a cartridge code feature, and the auto injector comprising a code sensor configured to read the cartridge code feature, and wherein the processing unit is coupled to the code sensor and further configured to receive from the code sensor a code signal indicative of the cartridge code feature, wherein the cartridge code feature defines the number of completed inversions required for the medicament in the cartridge.