MONRAD, Michael,MUNK, Jens Aage,HOLM, Per Einar Pontus,NØRTOFT SØRENSEN, Dan
申请号：
EPEP2015/069889
公开号：
WO2016/034552A1
申请日:
2015.09.01
申请国别(地区):
WO
年份:
2016
代理人:
摘要：
A drug delivery device (100) for estimating the amount of free air in a cartridge (1) comprising a cartridge receiving portion (not shown) adapted to receive a cartridge (1), the cartridge (1) comprising a body portion (6), an axially displaceable piston (5), and a distal outlet portion (4), an expelling assembly comprising an axially displaceable piston drive member (10) adapted to interface with the proximal piston (5) portion of a received cartridge (1), the piston drive member (10) is adapted to be moveable in a distal direction, and to thereby pressurize the drug in a received cartridge. The drug delivery device further comprises means for measuring and acquiring a property relating to a fluid pres- sure of the drug in a received cartridge (1), and where the property depends on the amount of free air (7) contained in the cartridge(1). The drug delivery device further comprises means (20) for measuring and acquiring the position of the piston rod drive member (10), and means (40) for measuring and acquiring the time. The drug delivery device further comprises means (30) for storing, and means (31) for processing the acquired measurements. The processing means are configured for estimating the amount of air (7) in the cartridge (1).Linvention concerne un dispositif dadministration de médicament (100) pour estimer la quantité dair libre dans une cartouche (1), comprenant une partie de réception de cartouche (non représentée) conçue pour recevoir une cartouche (1), la cartouche (1) comprenant une partie corps (6), un piston à déplacement axial (5) et une partie sortie distale (4), un ensemble dexpulsion comprenant un élément dentraînement de piston à déplacement axial (10) conçu pour faire interface avec la partie de piston proximal (5) dune cartouche reçue (1), lélément dentraînement de piston (10) est conçu pour être mobile dans une direction distale et, ainsi, pour mettre sous pression le médicament dans une cartouche reçue. Le dispositif dadministration de médi
