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1. 发明申请

WO2015188154A8 SYSTEM FOR CALCULATING A CHANGE IN FLUID VOLUME IN A PUMPING CHAMBER 审中-公开
标题翻译：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
申请人： DEKA PRODUCTS LP
发明人： NORRIS MICHAEL G , SCARPACI JACOB W , BRYANT ROBERT J , SPENCER GEOFFREY P , GIROUARD PAUL G , KAROL DANIEL S , SINGER DANIEL B , RUSHLOW JOSEPH P , HIBBARD DAVID J , DALE JAMES D , KERWIN JOHN M , COLL ANDREW S , BEAVERS DAVID A , MCGILL DAVID W , HELMORE SIMON C , DOHERTY DAVID B , BOLTON EDGAR J , YOO JINSUN
IPC分类号： A61M1/10 , A61M1/28 , A61M1/30
CPC分类号： A61M39/22 , A61M1/1006 , A61M1/1012 , A61M1/1037 , A61M1/106 , A61M1/1062 , A61M1/1086 , A61M1/1087 , A61M1/1096 , A61M1/166 , A61M1/28 , A61M1/282 , A61M1/288 , A61M2205/12 , A61M2205/3331 , A61M2205/3334 , A61M2205/3379 , A61M2205/3396 , A61M2205/6063
摘要： 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.
摘要翻译：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。

2. 发明申请

WO2015183976A8 SYSTEMS AND METHODS FOR DETECTING VASCULAR ACCESS DISCONNECTION 审中-公开
标题翻译：用于检测血管通路断开的系统和方法
公开(公告)号：WO2015183976A8
公开(公告)日：2016-02-11
申请号：PCT/US2015032702
申请日：2015-05-27
申请人： DEKA PRODUCTS LP
发明人： VAN DER MERWE DIRK A , NORRIS MICHAEL G , BAKER MICHAEL A , BALLANTYNE TODD A , WILT MICHAEL J
IPC分类号： A61M1/36
CPC分类号： A61M1/3656 , A61M1/365 , A61M2205/13 , A61M2205/3317
摘要： A system for detecting whether a vascular access has been interrupted in an arrangement in which two catheters or needles are present in a blood vessel, fistula or graft. A fluid line leading to a pump is connected via a first connector to a first indwelling catheter, and a fluid line leading from a pump is connected via a second connector to a second indwelling catheter. Each connector is equipped with an electrode in contact with the lumen of the connector, the electrodes electrically connected to an electronic circuit that measures the impedance or conductivity of fluid between the first connector and second connectors via a fluid path through the blood vessel, fistula or graft. An electronic controller receives the impedance or conductivity data and processes the data to determine whether a vascular access disconnection has occurred. The processing may involve filtering the signal received by the controller, and/or setting provisional flags for a disconnection event that may be cleared if the signal changes before the expiration of a counter.
摘要翻译：用于检测在血管，瘘管或移植物中存在两个导管或针头的布置中血管通路是否被中断的系统。通过泵的流体管线经由第一连接器连接到第一留置导管，并且从泵引出的流体管线经由第二连接器连接到第二留置导管。每个连接器配备有与连接器的内腔接触的电极，电极电连接到电子电路，该电子电路经由血管，瘘管或血管的流体路径测量第一连接器和第二连接器之间的流体的阻抗或导电性接枝。电子控制器接收阻抗或电导率数据并处理数据以确定是否发生血管通路断开。处理可以包括过滤由控制器接收的信号，和/或设置用于断开事件的临时标志，如果信号在计数器期满之前改变，可以将其清除。

3. 发明申请

WO2015183976A3 SYSTEMS AND METHODS FOR DETECTING VASCULAR ACCESS DISCONNECTION 审中-公开
标题翻译：用于检测血管通路断开的系统和方法
公开(公告)号：WO2015183976A3
公开(公告)日：2015-12-30
申请号：PCT/US2015032702
申请日：2015-05-27
申请人： DEKA PRODUCTS LP
发明人： VAN DER MERWE DIRK A , NORRIS MICHAEL G , BAKER MICHAEL A , BALLANTYNE TODD A , WILT MICHAEL J
IPC分类号： A61M1/36
CPC分类号： A61M1/3656 , A61M1/365 , A61M2205/13 , A61M2205/3317
摘要： A system for detecting whether a vascular access has been interrupted in an arrangement in which two catheters or needles are present in a blood vessel, fistula or graft. A fluid line leading to a pump is connected via a first connector to a first indwelling catheter, and a fluid line leading from a pump is connected via a second connector to a second indwelling catheter. Each connector is equipped with an electrode in contact with the lumen of the connector, the electrodes electrically connected to an electronic circuit that measures the impedance or conductivity of fluid between the first connector and second connectors via a fluid path through the blood vessel, fistula or graft. An electronic controller receives the impedance or conductivity data and processes the data to determine whether a vascular access disconnection has occurred. The processing may involve filtering the signal received by the controller, and/or setting provisional flags for a disconnection event that may be cleared if the signal changes before the expiration of a counter.
摘要翻译：一种用于在血管，瘘管或移植物中存在两个导管或针的装置中检测血管通路是否被中断的系统。通向泵的流体管线经由第一连接器连接至第一留置导管，并且从泵引出的流体管线经由第二连接器连接至第二留置导管。每个连接器配备有与连接器的内腔接触的电极，所述电极电连接至电子电路，所述电子电路经由穿过血管的流体路径，瘘管或瘘管测量第一连接器与第二连接器之间的流体的阻抗或电导率接枝。电子控制器接收阻抗或电导率数据并处理数据以确定是否发生血管通路断开。该处理可以涉及过滤由控制器接收的信号，和/或设置用于断开事件的临时标志，如果信号在计数器到期之前改变，则断开事件可以被清除。

4. 发明申请

WO2013176770A3 APPARATUS FOR INFUSING FLUID 审中-公开
标题翻译：用于输液的装置
公开(公告)号：WO2013176770A3
公开(公告)日：2014-01-30
申请号：PCT/US2013032445
申请日：2013-03-15
申请人： DEKA PRODUCTS LP
发明人： KAMEN DEAN , KERWIN JOHN M , MURPHY COLIN H , GRAY LARRY B , PARKER JONATHAN , BAIER MICHAEL J , LANGENFELD CHRISTOPHER C , BIASI JOHN J , VAN DER MERWE DIRK A , BLUMBERG DAVID , PLACE MICHAEL S , SLATE MICHAEL J , PAWLOWSKI DANIEL F , SABIN ERIK N , NORRIS MICHAEL G , THERRIEN ALEXANDER R
IPC分类号： A61M5/168 , A61M5/142
CPC分类号： A61M5/142 , A61M5/14216 , A61M5/168 , A61M5/16831 , A61M2005/16868 , A61M2205/18 , A61M2205/3306 , A61M2205/50 , A61M2205/502
摘要： A pump for pumping fluid includes a tube platen, a plunger, a bias member, inlet and outlet valves, an actuator mechanism, a position sensor, and a processor. The plunger is configured for actuation toward and away from the infusion tube when the tube platen is disposed opposite to the plunger. The tube platen can hold an intravenous infusion tube. The bias member is configured to urge the plunger toward the tube platen. The processor is configured to detect an anomaly in the tubing using the data from a position sensor on the position of the plunger.
摘要翻译：用于泵送流体的泵包括管板，柱塞，偏压构件，入口和出口阀，致动器机构，位置传感器和处理器。当管板与柱塞相对设置时，柱塞构造成朝向和远离输液管致动。管板可以容纳静脉输液管。偏置构件构造成将柱塞推向管板。处理器被配置为使用来自柱塞位置上的位置传感器的数据来检测管道中的异常。

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