ROCHE DIABETES CARE GMBH;F. HOFFMANN-LA ROCHE AG;ROCHE DIABETES CARE, INC.
发明人:
LIST, Hans
申请号：
EPEP2017/082617
公开号：
WO2018/109005A1
申请日:
2017.12.13
申请国别(地区):
EP
年份:
2018
代理人:
摘要：
Disclosed is an ambulatory infusion device, including a pump drive unit (2), a valve drive unit (1) and a control unit (40). The pump drive unit (2) includes a pump actuator (20) and a pump driver (21) coupled to the pump actuator (20), the pump driver (21) being designed for coupling to a piston (302) of a metering pump unit (30) for transmitting a pump driving force and/or pump driving torque from the pump actuator (20) to the piston (302). The valve drive unit (1) includes a valve actuator (10) and a valve driver (12) coupled to the valve actuator (10), the valve driver (12) being designed for coupling to a valve unit (31) for transmitting a valve switching force and/or valve switching torque from the valve actuator (10) to the valve unit (31). The control unit (40) is configured to control a repeated execution of a sequence of: a) operating the valve actuator (10) to switch the valve unit (31) into a filling state； b) operating the pump actuator (20) to displace the piston (302) in a retraction direction； c) operating the pump actuator (20) to displace the piston (302) into an advancing direction, the advancing direction being opposite to the retraction direction, by an backlash compensation distance； d) operating the valve actuator (10) to switch the valve unit (30) from the filling state into a draining state； e) operating the pump actuator (20) to further displace the piston (302) in the advancing direction in a number of incremental steps over an extended time period.L'invention concerne un dispositif de perfusion ambulatoire, comprenant une unité d'entraînement de pompe (2), une unité d'entraînement de valve (1) et une unité de commande (40). L'unité d'entraînement de pompe (2) comprend un actionneur de pompe (20) et un dispositif d'entraînement de pompe (21) couplé à l'actionneur de pompe (20), le dispositif d'entraînement de pompe (21) étant conçu pour être accouplé à un piston (302) d'une unité de pompe de dosage (30) afin de transmettre une force d'entr
