| 摘要 |
The implanted infusion pump system has a fluid link (13) between the chamber (9) to hold the active substance mass and the infusion point with a unit (14) which only releases the flow path when the mass in the chamber (9) is at a pressure over a given minute pressure level. The implanted infusion pump system has a fluid link (13) between the chamber (9) to hold the active substance mass and the infusion point with a unit (14) which only releases the flow path when the mass in the chamber (9) is at a pressure over a given minute pressure level. The fluid link between the chamber (3) to hold the active substance to be applied and the infusion point is an infusion line (8), with a feed line (13) to link the mass chamber (9) to the infusion point which has an overpressure valve (14) as a slitted disk. The min. pressure for the system is 2-4 bar and pref. 2.5-3.5 bar. An Independent claim is also included for an operating mechanism with a holder to secure the syringe cylinder and an actuator to grip the syringe plunger with a drive for its operation to press the plunger into the syringe cylinder. The drive moves the actuator from a start position against a return pressure and locks it in place. On release, the return pressure restores the plunger to the initial position. |
