SYSTEM FOR CALCULATING A CHANGE IN FLUID VOLUME IN A PUMPING CHAMBER
    1.
    发明申请
    SYSTEM FOR CALCULATING A CHANGE IN FLUID VOLUME IN A PUMPING CHAMBER 审中-公开
    计算泵送液体流量变化的系统

    公开(公告)号:WO2015188154A8

    公开(公告)日:2017-01-19

    申请号:PCT/US2015034570

    申请日:2015-06-05

    Abstract: Improvements in fluid volume measurement systems are disclosed for a pneumatically actuated diaphragm pump in general, and a peritoneal dialysis cycler using a pump cassette in particular. Pump fluid volume measurements are based on pressure measurements in a pump control chamber and a reference chamber in a two-chamber model, with different sections of the apparatus being modeled using a combination of adiabatic, isothermal and polytropic processes. Real time or instantaneous fluid flow measurements in a pump chamber of a diaphragm pump are also disclosed, in this case using a one-chamber ideal gas model and using a high speed processor to obtain and process pump control chamber pressures during fluid flow into or out of the pump chamber. Improved heater control circuitry is also disclosed, to provide added or redundant safety measures, or to reduce current leakage from a heater element during pulse width modulation control of the heater. Improvements are also disclosed in the application of negative pressure during a drain phase in peritoneal dialysis therapy, and to control the amount of intraperitoneal fluid accumulation during a therapy. Improvements in efficiency are also disclosed in the movement of fluid into and out of a two-pump cassette and heater bag of a peritoneal dialysis cycler, and in the synchronization of the operation of two or more pumps in a peritoneal dialysis cycler or other fluid handling devices using a multi-pump arrangement.

    Abstract translation: 一般来说,对气动驱动的隔膜泵公开了流体体积测量系统的改进,特别是使用泵盒的腹膜透析循环仪。 泵流体体积测量基于泵室控制室中的压力测量和双室模型中的参考室,其中该设备的不同部分使用绝热,等温和多变过程的组合进行建模。 还公开了在隔膜泵的泵室中的实时或瞬时流体流量测量,在这种情况下使用单室理想气体模型并且使用高速处理器在流体流入或流出期间获得和处理泵控制室压力 的泵室。 还公开了改进的加热器控制电路,以在加热器的脉冲宽度调制控制期间提供附加的或冗余的安全措施,或减少来自加热器元件的电流泄漏。 在腹膜透析治疗期间在排水阶段中施加负压并且在治疗期间控制腹膜内液体积累的量也公开了改进。 流体进出腹膜透析循环仪的双泵盒和加热袋,以及在腹膜透析循环仪或其他流体处理中两个或多个泵的操作的同步中也公开了效率的改善 使用多泵排列的装置。

    MEDICAL TREATMENT SYSTEM AND METHODS USING A PLURALITY OF FLUID LINES
    2.
    发明申请
    MEDICAL TREATMENT SYSTEM AND METHODS USING A PLURALITY OF FLUID LINES 审中-公开
    医疗治疗系统和使用多种流体线的方法

    公开(公告)号:WO2013067359A2

    公开(公告)日:2013-05-10

    申请号:PCT/US2012063336

    申请日:2012-11-02

    Abstract: A medical treatment system, such as peritoneal dialysis system, may include control and other features to enhance patient comfort and ease of use. For example, a peritoneal dialysis system may include a control system that can adjust the volume of fluid infused into the peritoneal cavity to prevent the intraperitoneal fluid volume from exceeding a pre¬ determined amount. The control system can adjust by adding one or more therapy cycles, allowing for fill volumes during each cycle to be reduced. The control system may continue to allow the fluid to drain from the peritoneal cavity as completely as possible before starting the next therapy cycle. The control system may also adjust the dwell time of fluid within the peritoneal cavity during therapy cycles in order to complete a therapy within a scheduled time period. The cycler may also be configured to have a heater control system that monitors both the temperature of a heating tray and the temperature of a bag of dialysis fluid in order to bring the temperature of the dialysis fluid rapidly to a specified temperature, with minimal temperature overshoot.

    Abstract translation: 诸如腹膜透析系统的医疗系统可以包括控制和其他特征,以增强患者的舒适性和易于使用。 例如,腹膜透析系统可以包括控制系统,其可以调节输入到腹膜腔中的流体的体积,以防止腹膜内液体体积超过预定量。 控制系统可以通过添加一个或多个治疗周期进行调整,从而减少每个循环期间的填充体积。 在开始下一个治疗周期之前,控制系统可以继续允许流体尽可能完全地从腹膜腔排出。 控制系统还可以在治疗周期期间调节腹膜腔内的流体的停留时间,以便在预定时间段内完成治疗。 循环仪还可以被配置为具有加热器控制系统,其监测加热盘的温度和透析液袋的温度,以便使透析液的温度快速地达到指定温度,同时以最小的温度超调 。

    SISTEMA DE TRATAMIENTO MÉDICO Y MÉTODOS QUE USAN UNA PLURALIDAD DE LÍNEAS DE FLUIDO.

    公开(公告)号:MX353343B

    公开(公告)日:2018-01-09

    申请号:MX2014005451

    申请日:2012-11-02

    Abstract: Un sistema de tratamiento médico, tal como sistema de diálisis peritoneal, puede incluir control y otras características para mejorar la comodidad del paciente y facilidad del uso; por ejemplo, un sistema de diálisis peritoneal puede incluir un sistema de control que puede ajustar el volumen de fluido infundido en la cavidad peritoneal para evitar que el volumen de fluido intraperitoneal exceda una cantidad predeterminada; el sistema de control puede ajustar agregando uno o más ciclos de terapia, permitiendo reducir los volúmenes de llenado durante cada ciclo; el sistema de control puede continuar permitiendo que el fluido drene de la cavidad peritoneal tan completamente como sea posible antes de iniciar el siguiente ciclo de terapia; el sistema de control también puede ajustar el tiempo de residencia de fluido dentro de la cavidad peritoneal durante ciclos de terapia para completar una terapia dentro de un período programado; el ciclador también puede estar configurado para tener un sistema de control del calentador que monitoree tanto la temperatura de una charola de calentamiento como la temperatura de una bolsa de fluido de diálisis para llevar la temperatura del fluido de diálisis rápidamente a una temperatura específica, con mínimo excedente de temperatura.

    MEDICAL TREATMENT SYSTEM AND METHODS USING A PLURALITY OF FLUID LINES

    公开(公告)号:AU2025202683A1

    公开(公告)日:2025-05-01

    申请号:AU2025202683

    申请日:2025-04-16

    Abstract: A medical treatment system, such as peritoneal dialysis system, may include control and other features to enhance patient comfort and ease of use. For example, a peritoneal dialysis system may include a control system that can adjust the volume of fluid infused into the peritoneal cavity to prevent the intraperitoneal fluid volume from exceeding a predetermined amount. The control system can adjust by adding one or more therapy cycles, allowing for fill volumes during each cycle to be reduced. The control system may continue to allow the fluid to drain from the peritoneal cavity as completely as possible before starting the next therapy cycle. The control system may also adjust the dwell time of fluid within the peritoneal cavity during therapy cycles in order to complete a therapy within a scheduled time period. The cycler may also be configured to have a heater control system that monitors both the temperature of a heating tray and the temperature of a bag of dialysis fluid in order to bring the temperature of the dialysis fluid rapidly to a specified temperature, with minimal temperature overshoot.

    MEDICAL TREATMENT SYSTEM AND METHODS USING A PLURALITY OF FLUID LINES

    公开(公告)号:AU2017200700A1

    公开(公告)日:2017-03-02

    申请号:AU2017200700

    申请日:2017-02-02

    Abstract: A heating system for a peritoneal dialysis apparatus comprising: a heater bag containing dialysate solution and positioned on a heater pan; a pumping apparatus configured to pump dialysate into and out of the heater bag; an electrical heating element to heat the heater pan; one or more heater pan temperature sensors to detect a temperature of the heater pan; a dialysate temperature sensor mounted in the heater pan, thermally isolated from the heater pan, and configured to contact an outer surface of the heater bag; and a controller programmed to perform an inner control loop process that modulates electrical power provided to the heating element to achieve a target heater pan temperature as measured by the one or more heater pan temperature sensors, and programmed to perform an outer control loop process that determines the target heater pan temperature based on a difference between a pre-determined target dialysate temperature and the dialysate temperature as measured by the dialysate temperature sensor.

    MEDICAL TREATMENT SYSTEM AND METHODS USING A PLURALITY OF FLUID LINES

    公开(公告)号:AU2022205229A1

    公开(公告)日:2022-08-04

    申请号:AU2022205229

    申请日:2022-07-14

    Abstract: A medical treatment system, such as peritoneal dialysis system, may include control and other features to enhance patient comfort and ease of use. For example, a peritoneal dialysis system may include a control system that can adjust the volume of fluid infused into the peritoneal cavity to prevent the intraperitoneal fluid volume from exceeding a predetermined amount. The control system can adjust by adding one or more therapy cycles, allowing for fill volumes during each cycle to be reduced. The control system may continue to allow the fluid to drain from the peritoneal cavity as completely as possible before starting the next therapy cycle. The control system may also adjust the dwell time of fluid within the peritoneal cavity during therapy cycles in order to complete a therapy within a scheduled time period. The cycler may also be configured to have a heater control system that monitors both the temperature of a heating tray and the temperature of a bag of dialysis fluid in order to bring the temperature of the dialysis fluid rapidly to a specified temperature, with minimal temperature overshoot.

    MEDICAL TREATMENT SYSTEM AND METHODS USING A PLURALITY OF FLUID LINES

    公开(公告)号:AU2019202307B2

    公开(公告)日:2020-07-02

    申请号:AU2019202307

    申请日:2019-04-03

    Abstract: A medical treatment system, such as peritoneal dialysis system, may include control and other features to enhance patient comfort and ease of use. For example, a peritoneal dialysis system may include a control system that can adjust the volume of fluid infused into the peritoneal cavity to prevent the intraperitoneal fluid volume from exceeding a predetermined amount. The control system can adjust by adding one or more therapy cycles, allowing for fill volumes during each cycle to be reduced. The control system may continue to allow the fluid to drain from the peritoneal cavity as completely as possible before starting the next therapy cycle. The control system may also adjust the dwell time of fluid within the peritoneal cavity during therapy cycles in order to complete a therapy within a scheduled time period. The cycler may also be configured to have a heater control system that monitors both the temperature of a heating tray and the temperature of a bag of dialysis fluid in order to bring the temperature of the dialysis fluid rapidly to a specified temperature, with minimal temperature overshoot. V: C`3 Cl) C=> un, I 0 00 co cli

    SISTEMA DE TRATAMIENTO MEDICO Y METODOS QUE USAN UNA PLURALIDAD DE LINEAS DE FLUIDO.

    公开(公告)号:MX2014005451A

    公开(公告)日:2015-02-18

    申请号:MX2014005451

    申请日:2012-11-02

    Abstract: Un sistema de tratamiento médico, tal como sistema de diálisis peritoneal, puede incluir control y otras características para mejorar la comodidad del paciente y facilidad del uso; por ejemplo, un sistema de diálisis peritoneal puede incluir un sistema de control que puede ajustar el volumen de fluido infundido en la cavidad peritoneal para evitar que el volumen de fluido intraperitoneal exceda una cantidad predeterminada; el sistema de control puede ajustar agregando uno o más ciclos de terapia, permitiendo reducir los volúmenes de llenado durante cada ciclo; el sistema de control puede continuar permitiendo que el fluido drene de la cavidad peritoneal tan completamente como sea posible antes de iniciar el siguiente ciclo de terapia; el sistema de control también puede ajustar el tiempo de residencia de fluido dentro de la cavidad peritoneal durante ciclos de terapia para completar una terapia dentro de un período programado; el ciclador también puede estar configurado para tener un sistema de control del calentador que monitoree tanto la temperatura de una charola de calentamiento como la temperatura de una bolsa de fluido de diálisis para llevar la temperatura del fluido de diálisis rápidamente a una temperatura específica, con mínimo excedente de temperatura.

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