KhARMS Mikhel' (DE),ХАРМС Михель (DE),KhORVART Dzhejms Robert Stirling (GB),ХОРВАРТ Джеймс Роберт Стирлинг (GB),KOKER Robin Krejg (GB),КОКЕР Робин Крейг (GB),GREGORI Dzhorzh Richard (GB),ГРЕГОРИ Джорж,KHARMS MIKHEL,ХАРМС Михель,KHORVART DZHEJMS ROBERT STIRLING,ХОРВАРТ Джеймс Роберт Стирлинг,KOKER ROBIN KREJG,КОКЕР Робин Крейг,GREGORI DZHORZH RICHARD,ГРЕГОРИ Джорж Ричард,SHARPANTE EHNTONI RAJMOND,ША
申请号：
RU2010149251/14
公开号：
RU0002501575C2
申请日:
2009.04.17
申请国别(地区):
RU
年份:
2013
代理人:
摘要：
FIELD: medicine.SUBSTANCE: invention refers to medical equipment, namely to drug delivery devices wherein the user may load and measure a drug dose to be delivered from a repeated cartridge. A drug delivery device comprises a drug container, a dosage unit and a body integrating at least a portion of the dosage unit. The dosage unit comprises a piston rod movable in the distal direction for drug delivery, a drive moving the piston rod in the distal direction for drug delivery, a drug dose loading element and a dose limitation element preventing the drug dose load if the drug amount in the container is exceeded. The dose limitation element is axially movable in the proximal direction in relation to the piston rod when loading the dose. The dose limitation element comprises a first lock member. The piston rod comprises a second lock member. The first and second lock members are used to arrest the axial motion of the dose limitation element in the proximal direction in relation to the piston rod once the first and second lock members are engaged thereby arresting the motion of the drug dose loading element to increase the loaded drug dose to be delivered. The dose limitation element and the piston rod interact directly only once the first and second lock members are engaged. According to the second version of the drug delivery device, the dosage unit comprises at least one blocking element for blocking the dose loading element with the body, thereby preventing the dose loading element from rotation about the body to increase a dose. The blocking element is actuated once the first locking element of dose limitation with the second locking element of the piston rod, and a force is applied to the dose loading element to increase a dose. According to the third version of the drug delivery device, the piston rod comprises two threaded portions. The first threaded portion having no effect on the motion of the dose limitation element. The second threaded portion. One end of th
