| 摘要 |
The invention relates to a piston stopper for an injection device, for injecting a medical or therapeutic product by axially advancing a piston stopper into a product container, wherein the piston stopper includes a stopper body and a stopper body holder detachably connected to it, and wherein a membrane body is placed like a cap onto the stopper body and connected to it, the membrane body being formed from an elastic material, while the stopper body and the stopper body holder are manufactured from an inflexible material. The invention encompasses an embodiment wherein the stopper body holder supports a sensor which measures the pressure acting on the membrane body to enable the pressure to be monitored precisely, in order to detect leaks and blockages in injection devices.
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