Autoinjector for administering medicament

• Main Authors: ELKJAER JOHNNY, EGESBORG HENRIK, LARSEN MARTIN NORGAARD, JENSEN STEEN, ANDERSEN BJORN KNUD
• Format: Patent
• Language: Chinese; English
• Published: 11.10.2022
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

Disclosed herein is an autoinjector for administering a medicament, comprising: a housing; a cartridge receiver; a drive module coupled to move the plunger rod between a retracted plunger rod position and an extended plunger rod position, the plunger rod configured to move the first stop; 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 at a mixing plunger rod speed from a first plunger rod position to a mixing plunger rod position, the mixing plunger rod position is selected to position the first stopper in a position where the first medicament component is mixed with the second medicament component; providing a start signal after a plurality of complete inversions of the autoinjector have been performed; and performing an air injection after a plurality of invertions have been performed, the air injection being performed only when the second cartridge chamber is directed upward compared to the first cartridge cha