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AssigneeICU Medical, Inc.
InventorsTimothy L. Ruchti, Brian G. Markey, Anatoly S. Belkin, Paul T. Kotnik, Mohammad M. Khair
Estimating the term…
Various systems and methods for detecting air in a chamber of an infusion system are disclosed. In one embodiment, a determination is made that air is contained in the chamber on the basis of a change in the average force exerted against the plunger utilizing a derivative spike for event detection and a systematic reduction in the average force to confirm the nature of the change. In another embodiment, a determination is made that the chamber contains air when a difference between the current force profile and a baseline force profile crosses a threshold. In an additional embodiment, a force profile is classified as being an air force profile or a liquid force profile based on extracted features of the force profile.
A method for detecting air in a chamber of an infusion system comprising:
A system for detecting air in a chamber of an infusion system, the system comprising one or more hardware processors configured to:
A non-transitory storage medium comprising instructions when executed by one or more hardware processors cause for detecting air in a chamber of an infusion system, the one or more hardware processors configured to implement a process comprising:
Dependencies are inferred from the claim text.