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公开(公告)号：US20190024654A1
公开(公告)日：2019-01-24
申请号：US16077170
申请日：2017-01-31
摘要： A membrane pump usage condition detection system and a method of determining a membrane pump usage condition. The membrane pump usage condition detection system comprises a membrane pump defining a flow path arranged to be opened and closed by at least one valve, a measuring device; a comparator; and a signal generator. The measuring device is configured to determine an electrical characteristic between two points on the flow path of the membrane pump, one point arranged upstream of the at least one valve and the other point arranged downstream of the at least one valve. The measuring device measures the electrical characteristic when the at least one valve is closed. The comparator is configured to monitor the electrical characteristic. The signal generator is arranged to provide an output signal when the electrical characteristic is indicative of a membrane pump usage condition.
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公开(公告)号：US20180344915A1
公开(公告)日：2018-12-06
申请号：US15771366
申请日：2016-10-27
发明人： Mark WALLACE
CPC分类号： A61M1/341 , A61M1/16 , A61M1/1647 , A61M1/1649 , A61M2205/12 , A61M2205/128
摘要： The invention relates to a dialysis machine capable of performing ultrafiltration without the need for a dedicated ultrafiltration pump. The system uses a pair of membrane flow balance pumps wherein the operation and/or the volume flow rate of the pumps can be modified during operation to bring about a net movement of dialysate either into or from the dialyser. The direction of flow of the dialysate in the dialyzer is reversible and the dialyzer can comprise two dialysate inlets, one at each end, and two dialysate outlets, one at each end.
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公开(公告)号：US12011528B2
公开(公告)日：2024-06-18
申请号：US16483345
申请日：2018-02-02
发明人： Clive Buckberry , Keith Heyes , Eduardo Esser
CPC分类号： A61M1/267 , A61M1/155 , A61M1/156 , A61M1/15625 , A61M1/1565 , A61M1/3413 , A61M39/22 , A61M2205/128
摘要： The invention provides a blood treatment device comprising: a dialyser; an inlet pump assembly; an outlet pump assembly; and a control system. The inlet pump assembly configured to deliver a first volume of dialysate from a dialysate source to the dialyser in an inlet pump cycle having a dialysate delivery stroke. The outlet pump assembly configured to remove a second volume of dialysate from the dialyser and deliver the dialysate away from the dialyser in an outlet pump cycle having a dialysate removal stroke. The control system is configured to operate the inlet pump assembly in the inlet pump cycle, and configured to operate the outlet pump assembly in the outlet pump cycle. For each inlet pump cycle there is a corresponding outlet pump cycle, and each inlet pump assembly dialysate delivery stroke has a commencement time t1 and a termination time h, and each outlet pump assembly dialysate removal stroke has a commencement time t3 and a termination time t4. The blood treatment device is operable such that either: each dialysate removal stroke commencement time t3 is after the respective corresponding dialysate delivery stroke commencement time ti and before the respective corresponding dialysate delivery stroke termination time t2; or each dialysate delivery stroke commencement time t1 is after the respective corresponding dialysate removal stroke commencement time t3 and before the respective corresponding dialysate removal stroke termination time t4.
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公开(公告)号：USRE50004E1
公开(公告)日：2024-06-11
申请号：US17345754
申请日：2021-06-11
CPC分类号： A61M1/168 , A61M1/154 , A61M1/155 , A61M1/156 , A61M1/1562 , A61M1/15632 , A61M1/1565 , A61M1/16 , A61M1/1645 , A61M1/34 , A61M1/3413 , A61M1/342 , A61M1/3635 , A61M1/1566 , A61M2202/0413 , A61M2205/128 , A61M2205/33
摘要： The invention relates to a blood treatment device, in particular a device which can perform haemodialysis and haemodifiltration procedures. This is achieved using an interconnected pump and valve arrangement which can be controlled to direct fluid across a dialysis membrane or parallel to said membrane depending on the type of processing required. This allows dynamic variation between modes of operation and treatment.
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公开(公告)号：US20220001087A1
公开(公告)日：2022-01-06
申请号：US17478569
申请日：2021-09-17
摘要： Embodiments of the present disclosure include a dialysis system having a disposable cartridge which includes one or more flowpaths arranged on or within the cartridge.
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公开(公告)号：US11365728B2
公开(公告)日：2022-06-21
申请号：US16488499
申请日：2018-02-23
发明人： Eric Westenbrink
IPC分类号： F04B43/12 , F04B43/00 , A61M5/142 , A61M60/279
摘要： A method of testing the rotor engagement of a peristaltic pump rotor. The method comprising steps of providing a pump system comprising a peristaltic pump rotor; a tube; a valve; a pressure sensor; a comparator; and a processor. The pressure sensor is configured to monitor the pressure in a fluid in the tube downstream of the peristaltic pump rotor and upstream of the valve. The comparator is configured to continuously monitor the pressure sensor and compare the measured fluid pressure data with a predetermined parameter. The processor is configured to receive a signal from the comparator and generate an alert signal when the measured pressure data falls outside the predetermined parameters.
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公开(公告)号：US20210110920A1
公开(公告)日：2021-04-15
申请号：US16499291
申请日：2018-03-27
发明人： Keith HEYES , Clive Henry BUCKBERRY , Eduardo ESSER , Alan BARLOW
摘要： A fluidic cartridge for use with a dialysis system, a method of manufacturing the fluidic cartridge, a dialysis machine and a method of operating the dialysis machine with the fluidic cartridge. The fluidic cartridge has a data storage unit, the data storage unit stores data relating to one or more physical properties of the cartridge. A cartridge for use in a portable dialysis machine and a portable dialysis machine. The cartridge has a data storage unit, the data storage unit stores data relating to sterilisation of the cartridge.
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公开(公告)号：USD907211S1
公开(公告)日：2021-01-05
申请号：US29621378
申请日：2017-10-06
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公开(公告)号：US20200268958A1
公开(公告)日：2020-08-27
申请号：US16666326
申请日：2019-10-28
摘要： Embodiments of the present disclosure include a dialysis system having a disposable cartridge which includes one or more flowpaths arranged on or within the cartridge, where the one or more flowpaths including at least one of a blood flowpath for carrying a volume of blood to be treated in a dialyser and a dialysate flowpath, isolated from the blood flowpath, for delivering a flow of dialysate solution through the dialyser.
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公开(公告)号：US20190001042A1
公开(公告)日：2019-01-03
申请号：US16019211
申请日：2018-06-26
发明人： Clive BUCKBERRY
IPC分类号： A61M1/16
摘要： The disclosure relates to a dialysis system comprising a dialysate side and a blood side. In particular, and for example, in some embodiments, a dialysis system is provided and comprises a dialyzer including and a blood filter configured to divide the dialyzer and dialysis system into a blood side and a dialysate side. The blood side includes a blood circuit comprising a blood pump, a blood removal line, a blood return line, and a blood return line valve (BRV). The blood removal line and blood return line converge to a single venous access line in blood communication with a patient. The dialysate side includes a dialysate fluid circuit comprising first and second pump chambers each having a plurality of respective valves configurable to enable or prevent fluid communication with both the dialyser side of the dialyser and a drain. Each of the first and second pump chambers are configurable, based on the configurations of the valves, to comprise a blood accumulation chamber.
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