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11. 发明申请

US20190060629A1 MEDICAL TREATMENT SYSTEM AND METHODS USING A PLURALITY OF FLUID LINES 审中-公开
公开(公告)号：US20190060629A1
公开(公告)日：2019-02-28
申请号：US16112287
申请日：2018-08-24
申请人： DEKA Products Limited Partnership
发明人： Michael G. Norris , Jacob W. Scarpaci , Robert J. Bryant, JR. , Geoffrey P. Spencer , David J. Hibbard , James D. Dale , John M. Kerwin , Andrew S. Coll , David A. Beavers , David W. McGill , Simon C. Helmore , David B. Doherty , Edgar J. Bolton , Jinsun Yoo , Paul G. Girouard , Daniel S. Karol , Daniel B. Singer , Joseph P. Rushlow
IPC分类号： A61M39/22
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.

12. 发明授权

US10201647B2 Medical treatment system and methods using a plurality of fluid lines 有权
公开(公告)号：US10201647B2
公开(公告)日：2019-02-12
申请号：US14732564
申请日：2015-06-05
申请人： DEKA Products Limited Partnership
发明人： Michael G. Norris , Jacob W. Scarpaci , Robert J. Bryant, Jr. , Geoffrey P. Spencer , David J. Hibbard , James D. Dale , John M. Kerwin , Andrew S. Coll , David A. Beavers , David W. McGill , Simon C. Helmore , David B. Doherty , Edgar J. Bolton , Jinsun Yoo , Paul G. Girouard , Daniel S. Karol , Daniel B. Singer , Joseph P. Rushlow
IPC分类号： A61M1/28 , G01V8/20 , A61M1/36 , A61M1/16
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.

13. 发明授权

US10058694B2 Medical treatment system and methods using a plurality of fluid lines 有权
公开(公告)号：US10058694B2
公开(公告)日：2018-08-28
申请号：US14732571
申请日：2015-06-05
申请人： DEKA Products Limited Partnership
发明人： Michael G. Norris , Jacob W. Scarpaci , Robert J. Bryant, Jr. , Geoffrey P. Spencer , David J. Hibbard , James D. Dale , John M. Kerwin , Andrew S. Coll , David A. Beavers , David W. McGill , Simon C. Helmore , David B. Doherty , Edgar J. Bolton , Jinsun Yoo , Paul G. Girouard , Daniel S. Karol , Daniel B. Singer , Joseph P. Rushlow
IPC分类号： A61M1/28 , A61M39/22 , A61M1/16 , A61M1/10
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.

14. 发明申请

US20160030658A1 Systems and Methods for Detecting Vascular Access Disconnection 有权
标题翻译：检测血管通路断开的系统和方法
公开(公告)号：US20160030658A1
公开(公告)日：2016-02-04
申请号：US14723221
申请日：2015-05-27
申请人： DEKA Products Limited Partnership
发明人： Dirk A. van der Merwe , Michael G. Norris , Michael A. Baker , Todd A. Ballantyne , Michael J. Wilt
IPC分类号： A61M1/36 , A61M1/16
CPC分类号： A61M1/3656 , A61M2205/128 , A61M2205/14 , A61M2205/33 , 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。

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