MULTI-CARTRIDGE DEVICE FOR LIQUID INTRODUCTION Russian patent published in 2012 - IPC A61M5/142 

FIELD: medicine.

SUBSTANCE: versions of device relate to medical equipment. Device contains case, first reservoir with first medication; second reservoir with second medication; first drive mechanism for basal delivery, which has first reservoir of hydraulic liquid; first pump chamber in liquid connection with first reservoir of hydraulic liquid of first drive mechanism for basal delivery through first flow restrictor. First pump chamber is made with possibility of connection with first reservoir to provide basal delivery of first medication during application. Second drive mechanism for basal delivery within case has second reservoir of hydraulic liquid. Second pump chamber is in liquid connection with second reservoir through second flow restrictor. Second pump chamber is made with possibility to provide basal delivery of second medication during application. Needle has first end, made with possibility of liquid connection with first reservoir, and second end, made with possibility of extending outside case. Described is second version of device with differs by presence of drive for bolus delivery.

EFFECT: increased accuracy of basal introduction of medications.

19 cl, 19 dwg