Medication delivery device and method for dispensing a medication

摘要

A medication delivery device (100) comprises a container (101) for holding a medication (104) and a piston (102) which is at least partly arranged within the container (101) and which is axially displaceable with respect to the container (101). The piston (102) is at least partly arranged at a distance from an inner surface (112) of the container (101), thereby providing a channel (116) between the piston (102) and the container (101). The device (100) further comprises a seal (103), the seal (103) being arranged to limit the channel (116) proximally.

主权项

1. A medication delivery device, comprising:
a container for holding a medication in a medication region, the container having a proximal end and a distal end, a piston which is at least partly arranged within the container and which is displaceable with respect to the container in the distal direction for dispensing a dose of the medication from the container, and a seal, wherein during dispense of the dose of the medication from the container, the piston is at least partly arranged at a distance from an inner surface of the container, thereby providing a channel between the piston and the container, the channel extending along a side surface of the piston and being in fluid communication with the medication region, and a length of the channel increases when the piston is displaced in the distal direction with respect to the seal, the seal is arranged to limit the channel proximally, and the piston is displaceable in the distal direction with respect to the seal, wherein the seal is secured against movement with respect to the container.