Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
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 comprising 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.
Abstract:
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.
Abstract:
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.
Abstract:
Se proveen un sistema y método para determinar una concentración de cloro total en agua de diálisis. El sistema comprende una unidad principal que aloja una cámara de KL/muestra de agua y una cámara de sulfato de sodio. Un primer par de electrodos puentea las dos cámaras y genera triyoduro proporcional a la cantidad de calor total en la muestra de agua. Un segundo par de agua electrodos en contacto con el fluido en la KL/muestra de agua detecta una cantidad de triyoduro generada por el primer par de electrodos. El sistema es apropiado para uso en conexión con, o para incorporación en, un sistema de purificación de agua para generar fluido de diálisis, y puede incluir una pantalla que alerte al usuario a que detenga o evite un tratamiento de hemodiálisis si el nivel de cloro total excede un nivel predeterminado.
Abstract:
Se proveen un sistema y método para determinar una concentración de cloro total en el agua de diálisis. El sistema comprende una unidad principal que aloja una cámara de yoduro/muestra de agua y una cámara de agente reductor. Un par de electrodos puentea las dos cámaras y genera triyoduro proporcional a la cantidad de calor total en el agua de diálisis. El par de electrodos detecta la cantidad de triyoduro generado en proporción a la cantidad de cloruro activo en el agua de diálisis. El sistema es apropiado para uso en conexión con, o para incorporación en, un sistema de purificación de agua para generar fluido de diálisis, y puede incluir una pantalla que alerta al usuario a detener o evitar un tratamiento de hemodiálisis si el nivel de cloro total excede un nivel predeterminado.
Abstract:
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.