Icu Medical Inc.

Hospira, Inc.

Curlin Medical Inc.

Paul T Kotnik

Anatoly S Belkin

Timothy Lewis Ruchti

Kunal Sur

Brian G Markey

John Hicks Dumas, Iii

Meriyan Oruklu

Mohammad M Khair

Troy Allen Bartz

John Hicks Dumas

Michael G Lowery

Tamas Ban

Rajat Khare

Rana Balci

John H Dumas

To detect air in a fluid delivery line of an infusion system, infusion fluid is pumped through a fluid delivery line adjacent to at least one sensor. A signal is transmitted and received using the at least one sensor into and from the fluid delivery line. The at least one sensor is operated, using at least one processor, at a modified frequency which is different than a resonant frequency of the at least one sensor to reduce an amplitude of an output of the signal transmitted from the at least one sensor to a level which is lower than a saturation level of the analog-to-digital converter to avoid over-saturating the analog-to-digital converter. The signal received by the at least one sensor is converted from analog to digital using an analog-to-digital converter. The at least one processor determines whether air is in the fluid delivery line based on the converted digital signal.

Infusion system and method of use which prevents over-saturation of an analog-to-digital converter

An infusion system for being operatively connected to a fluid delivery line and to an infusion container includes a pump, a plurality of different types of sensors connected to the pump or the fluid delivery line, at least one processor, and a memory. The plurality of different types of sensors are configured to indicate whether air is in the fluid delivery line. The memory includes programming code for execution by the at least one processor. The programming code is configured to, based on measurements taken by the plurality of different types of sensors, determine: whether there is air in the fluid delivery line; whether there is a partial occlusion or a total occlusion in the fluid delivery line; or a percentage of the air present in the fluid delivery line or the probability of the air being in the fluid delivery line.

Multi-sensor infusion system for detecting air or an occlusion in the infusion system

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.

Air detection system and method for detecting air in a pump of an infusion system

In one step of a method for infusing an infusion fluid, the infusion fluid is pumped through a fluid delivery line of an infusion system. In another step, measurements are taken with at least one sensor connected to the infusion system. In an additional step, an air determination is determined with at least one processor. The air determination is related to air in the fluid delivery line. The air determination is based on the measurements taken by the at least one sensor. The air determination is further based on: (1) medication information regarding the infusion fluid or infusion information regarding the infusion of the infusion fluid; or (2) multi-channel filtering of the measurements from the at least one sensor or non-linear mapping of the measurements from the at least one sensor; and statistical process control charts applied to the multi-channel filtered measurements or applied to the non-linear mapped measurements.

Infusion system which utilizes one or more sensors and additional information to make an air determination regarding the infusion system

A tool or computer-readable medium for interfacing with an infusion pump includes i) computer-readable code for generating a drug library, generating a run profile, or a combination thereof, and ii) computer-readable code for configuring the infusion pump.

Tool for interfacing with an infusion pump

Growing community of inventors

Commerce Township, MI, United States of America

Paul T Kotnik