Mechanically operated fluid pump, especially for medical fluids and intravenous nutrition; has elastic wall and leaf spring tensioned in spring chamber to push other wall into catch position

摘要

The pump has a chamber (2) to receive fluid or a bag of fluid. One wall (8) of the chamber is elastic, while another wall is assigned to a leaf spring (6) that can be pushed into a catch position. In the catch position, the elastic wall is moved into a stretched position by increasing the pressure of the fluid. The leaf spring is formed with a tension frame (7) as a single unit, which is arranged in a separate spring chamber (3) of the pump.