An infusion pump is disclosed, which comprises a housing, a chamber located in the housing, an outlet, an outlet valve between the chamber and the outlet, an inlet, and an inlet valve between the inlet and the chamber. At least one of the outlet valve and the inlet valve comprises a spherical valve member, a valve seat member, and a spring member arranged to bias the spherical valve member towards a valve seat of the valve seat member. A method for providing the infusion pump is also disclosed.
