Baxter International Inc.

Baxter Healthcare Sa

Motorola Corporation

Ye Chen

Yuanpang Samuel Ding

Joel Titus

Justin Belanger Rohde

Shincy J Maliekkal

Kevin Cooper

Jeff White

Matthew R Muller

Gert Najdeni

Ying-Cheng Lo

Timothy J Wilson

Stephen P Emeott

Floyd D Simpson

Joshua James Miller

Huai Y Wang

James Mitchell White

Samuel Ding

Rongsheng Lin

Steven Ward Fischer

Matthew Stephen Vogel

Nattavut Smavatkul

Systems and methods for detecting an occlusion in an infusion device are disclosed. One method includes generating, during an infusion session at predetermined intervals, a feature vector including an initial measurement of a physical force caused by fluid motion through an infusion device at the start of an infusion session, a current measurement of the physical force, a long term change in the measurement of the physical force, and a short term change in the measurement of the physical force. The feature vector is inputted, during the predetermined intervals, into a support vector machine ('SVM') to output an indication of a presence or an absence of an occlusion in the infusion device. The SVM may be trained using reference data from reference infusion sessions having known consequences regarding the presence or the absence of an occlusion at various times during the reference infusion sessions.

Systems and methods for occlusion detection in infusion pumps

A system and method is disclosed for detecting remaining battery voltage or capacity in an infusion device and generating alarms based on the detection. The battery lifetime extension method includes providing an infusion device that derives its power from a rechargeable battery. The infusion device may derive its power from a rechargeable battery. Furthermore, the infusion device receives, at predetermined intervals of time in real-time sensor data comprising: a voltage, a change in the voltage over the predetermined interval of time, an average current, a temperature, and a remaining voltage or capacity reported by a battery gas gauge integrated circuit ('IC') associated with the rechargeable battery. An improved and customized neural network model utilizes the sensor data to determine an indicia of the actual remaining voltage or capacity of the rechargeable battery in real-time. The indicia may be used to lengthen and/or abate ongoing medical infusion therapy.

System and method for generating battery alarms in infusion devices

A dialysis method and system for determining an amount of total chlorine in a partially purified water sample is disclosed. The system includes a water machine that produces at least partially purified water including an at least partially purified water sample and a dialysis machine that provides a dialysis treatment to a patient. The dialysis machine receives the at least partially purified water from the water machine to prepare dialysis fluid for the dialysis treatment. The system also includes a total chlorine detector configured to receive the at least partially purified water sample, at a first time apply a source voltage to the at least partially purified water sample, and at a second time stop applying the source voltage to the at least partially purified water sample and instead monitor a sensed electrical parameter to determine an amount of total chlorine in the at least partially purified water sample.

Method of determining an amount of total chlorine in a water sample for a hemodialysis treatment

A dialysis system for determining an amount of total chlorine in a partially purified water sample is disclosed. The system includes a water machine that produces at least partially purified water including an at least partially purified water sample and a dialysis machine that provides a dialysis treatment to a patient. The dialysis machine receives the at least partially purified water from the water machine to prepare dialysis fluid for the dialysis treatment. The system also includes a total chlorine detector configured to receive the at least partially purified water sample, at a first time apply a source voltage to the at least partially purified water sample, and at a second time stop applying the source voltage to the at least partially purified water sample and instead monitor a sensed electrical parameter to determine an amount of total chlorine in the at least partially purified water sample.

Dialysis system for ultra-low total chlorine detection in at least partially purified water

A system and method for determining a concentration of total chlorine in dialysis water are provided. The system comprises a main unit housing an iodide/water sample chamber and a reducing agent chamber. An electrode pair bridges the two chambers and generates tri-iodide proportional to the amount of total chlorine in the dialysis water. The electrode pair detects the amount of tri-iodide generated in proportion to the amount of active chloride in the dialysis water. The system is suitable for use in connection with, or for incorporation into, a water purification system for generating dialysis fluid, and may include a display that alerts the user to stop or prevent a hemodialysis treatment if the total chlorine level exceeds a predetermined level.

Integrated water testing system for ultra-low total chlorine detection

A system and method for determining a concentration of total chlorine in dialysis water are provided. The system comprises a main unit housing a KI/water sample chamber and a sodium sulfate chamber. A first electrode pair bridges the two chambers and generates tri-iodide proportional to the amount of total chlorine in the water sample. A second electrode pair in contact with fluid in the KI/water sample detects an amount of tri-iodide generated by the first electrode pair. The system is suitable for use in connection with, or for incorporation into, a water purification system for generating dialysis fluid, and may include a display that alerts the user to stop or prevent a hemodialysis treatment if the total chlorine level exceeds a predetermined level.

Total chlorine water detection system for medical fluid treatments

Integrated water testing methods for ultra-low total chlorine detection

A medical fluid system includes a medical fluid pump; a container holding a fluid to be pumped by the medical fluid pump, the fluid at a first time having a first conductivity, the fluid at a second time having a second conductivity; and a radio frequency level sensor positioned in operable relation with the container, the radio frequency level sensor (i) configured to provide an output indicative of a level of the fluid in the container based upon sensing an impedance and (ii) connected to tuning circuitry that minimizes a reactance of the impedance such that the output is at least substantially independent of whether the fluid has the first conductivity or the second conductivity. The medical fluid system can determine the level of the fluid by measuring a resistance, the impedance, or a phase shift seen by the sensor.

Non-invasive radio frequency medical fluid level and volume detection system and method

A medical fluid system includes a container holding a fluid at a level; and a radio frequency level sensor operably connected to the container and including an emitting electrode and a receiving electrode, the electrodes operating as a transmission line having an electrical impedance that varies with the level or volume of the fluid in the container, the level sensor configured to measure a phase shift of the transmission line, the phase shift indicative of the level or volume of the fluid in the container.

Non-invasive radio frequency liquid level and volume detection system and method using phase shift

Systems and methods for hemodialysis or peritoneal dialysis having integrated electrodialysis and electrodeionization capabilities are provided. In an embodiment, the dialysis system includes a carbon source, a urease source, an ED/EDI unit. The carbon source, urease source, and/or the ED/EDI unit can be in the form of removable cartridges.

Hemodialysis and peritoneal dialysis systems having electrodialysis and electrodeionization capabilities

Integrated water testing system and method for ultra-low total chlorine detection

Total chlorine water detection system and method for medical fluid treatments

A medical fluid system includes a medical fluid pump; a container holding a fluid to be pumped by the medical fluid pump, the fluid at a first time having a first conductivity, the fluid at a second time having a second conductivity; and a radio frequency level sensor positioned in operable relation with the container, the radio frequency operation of the level sensor configured so as to be (i) indicative of a level of the fluid in the container and (ii) at least substantially independent of whether the fluid has the first conductivity or the second conductivity. The medical fluid system can determine the level of medical fluid by measuring the resistance, impedance or phase shift seen by the sensor.

Growing community of inventors

Buffalo Grove, IL, United States of America

Ye Chen