发明名称 |
Fluid Infusion System, A Method of Assembling Such System and Drug Reservoir for Use in the System |
摘要 |
The present invention relates to methods and devices for providing a reduced risk of free flow from medical devices such as an infusion pump. A medicament containing reservoir is provided with a piston having a sealing portion formed by a material of a first stiffness. The piston further comprises a frictional enhancing member having one or more reservoir wall engaging portions and being at least partly made of a material having a stiffness greater than the first stiffness. By arranging the frictional enhancing member to exert a radially outwards directed force component against the cylindrical wall an increased friction is provided between the piston and the reservoir wall.
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申请公布号 |
US2009299288(A1) |
申请公布日期 |
2009.12.03 |
申请号 |
US20070297340 |
申请日期 |
2007.04.19 |
申请人 |
NOVO NORDISK AG |
发明人 |
SIE GUNNAR MONRAD;LUND CARSTEN |
分类号 |
A61M5/145;A61M5/315 |
主分类号 |
A61M5/145 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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