A 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.
申请公布号
EP2010255(A1)
申请公布日期
2009.01.07
申请号
EP20070728324
申请日期
2007.04.19
申请人
NOVO NORDISK A/S;LUND, CARSTEN
发明人
SIE, GUNNAR, MONRAD;LUND, CARSTEN;KEISER-NIELSEN, NIELS FREDERIK