发明名称 |
Mechanical Dose Expelled Indicator |
摘要 |
The present invention concerns a dosing unit for an injection device (100) and an injection device incorporating the dosing unit. The dosing unit comprises a housing (102) extending along a longitudinal axis from a proximal housing end to a distal housing end, the distal housing end being adapted for connection with a variable volume reservoir, an injection mechanism for expelling a dose of a substance held in a connected variable volume reservoir, the injection mechanism being arranged at least partially in the housing (102) and comprising an injection button (157), a dose defining structure (140) configured to move from a start position to an end-of-dose position in response to a dose expelling operation of the injection button (157), and a piston rod (160) configured to move in a dose delivery direction from a first position to a second position in response to a movement of the dose defining structure (140) from the start position to the end-of-dose position, and a dose delivered indicator (109) configured to move axially in a distal direction from a dose ready position to a dose delivered position in response to the movement of the dose defining structure (140) from the start position to the end-of-dose position, wherein during movement from the dose ready position to the dose de livered position a portion of the dose delivered indicator (109) emerges increasingly from the distal housing end. |
申请公布号 |
US2016317751(A1) |
申请公布日期 |
2016.11.03 |
申请号 |
US201415105204 |
申请日期 |
2014.12.18 |
申请人 |
NOVO NORDISK A/S |
发明人 |
Andersen Mads Groenlund |
分类号 |
A61M5/315;A61M5/24;A61M5/20;A61M5/28 |
主分类号 |
A61M5/315 |
代理机构 |
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代理人 |
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主权项 |
1. A dosing unit for an injection device, the dosing unit comprising:
a housing extending along a longitudinal axis from a proximal housing end to a distal housing end, the distal housing end being adapted for connection with a variable volume reservoir, an injection mechanism for expelling a dose of a substance from a connected variable volume reservoir, the injection mechanism being arranged at least partially in the housing and comprising:
an injection button,a dose defining structure configured to move from a start position to an end-of-dose position in response to a dose expelling operation of the injection button, anda piston rod configured to move in a dose delivery direction from a first position to a second position in response to a movement of the dose defining structure from the start position to the end-of-dose position, and a dose delivered indicator configured to move axially in a distal direction from a dose ready position to a dose delivered position in response to the movement of the dose defining structure from the start position to the end-of-dose position, wherein during movement from the dose ready position to the dose delivered position the dose delivered indicator emerges increasingly from the distal housing end. |
地址 |
Bagsvaerd DK |