WO2001042758A3 - Systems and methods for detecting air in an arterial blood line of a blood processing circuit - Google Patents

Systems and methods for detecting air in an arterial blood line of a blood processing circuit Download PDF

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Publication number
WO2001042758A3
WO2001042758A3 PCT/US2000/042365 US0042365W WO0142758A3 WO 2001042758 A3 WO2001042758 A3 WO 2001042758A3 US 0042365 W US0042365 W US 0042365W WO 0142758 A3 WO0142758 A3 WO 0142758A3
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WO
WIPO (PCT)
Prior art keywords
arterial blood
systems
methods
processing circuit
blood
Prior art date
Application number
PCT/US2000/042365
Other languages
French (fr)
Other versions
WO2001042758A2 (en
Inventor
James M Brugger
Dennis M Treu
Original Assignee
Nxstage Medical Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nxstage Medical Inc filed Critical Nxstage Medical Inc
Priority to EP00992815A priority Critical patent/EP1240494A2/en
Priority to AU47091/01A priority patent/AU4709101A/en
Priority to JP2001543998A priority patent/JP2003520632A/en
Publication of WO2001042758A2 publication Critical patent/WO2001042758A2/en
Publication of WO2001042758A3 publication Critical patent/WO2001042758A3/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
    • A61M1/3401—Cassettes therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
    • A61M1/3403—Regulation parameters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
    • A61M1/3403—Regulation parameters
    • A61M1/3406—Physical characteristics of the filtrate, e.g. urea
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
    • A61M1/342—Adding solutions to the blood, e.g. substitution solutions
    • A61M1/3441—Substitution rate control as a function of the ultrafiltration rate
    • A61M1/3444—Substitution rate control as a function of the ultrafiltration rate in which the collected ultra-filtrate expels an equal volume of substitution fluid from a reservoir
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3607—Regulation parameters
    • A61M1/3609—Physical characteristics of the blood, e.g. haematocrit, urea
    • A61M1/361—Physical characteristics of the blood, e.g. haematocrit, urea before treatment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3607—Regulation parameters
    • A61M1/3609—Physical characteristics of the blood, e.g. haematocrit, urea
    • A61M1/3612—Physical characteristics of the blood, e.g. haematocrit, urea after treatment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3622—Extra-corporeal blood circuits with a cassette forming partially or totally the blood circuit
    • A61M1/36222—Details related to the interface between cassette and machine
    • A61M1/362223—Details related to the interface between cassette and machine the interface being evacuated interfaces to enhance contact
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3622—Extra-corporeal blood circuits with a cassette forming partially or totally the blood circuit
    • A61M1/36222—Details related to the interface between cassette and machine
    • A61M1/362227—Details related to the interface between cassette and machine the interface providing means for actuating on functional elements of the cassette, e.g. plungers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3622—Extra-corporeal blood circuits with a cassette forming partially or totally the blood circuit
    • A61M1/36224—Extra-corporeal blood circuits with a cassette forming partially or totally the blood circuit with sensing means or components thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3622—Extra-corporeal blood circuits with a cassette forming partially or totally the blood circuit
    • A61M1/36225—Extra-corporeal blood circuits with a cassette forming partially or totally the blood circuit with blood pumping means or components thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3622—Extra-corporeal blood circuits with a cassette forming partially or totally the blood circuit
    • A61M1/36226—Constructional details of cassettes, e.g. specific details on material or shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3622—Extra-corporeal blood circuits with a cassette forming partially or totally the blood circuit
    • A61M1/36226—Constructional details of cassettes, e.g. specific details on material or shape
    • A61M1/362262—Details of incorporated reservoirs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3622—Extra-corporeal blood circuits with a cassette forming partially or totally the blood circuit
    • A61M1/36226—Constructional details of cassettes, e.g. specific details on material or shape
    • A61M1/362265—Details of valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3643—Priming, rinsing before or after use
    • A61M1/3644—Mode of operation
    • A61M1/3646—Expelling the residual body fluid after use, e.g. back to the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/367—Circuit parts not covered by the preceding subgroups of group A61M1/3621
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3626—Gas bubble detectors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3639—Blood pressure control, pressure transducers specially adapted therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/12—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit
    • A61M2205/125—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit with incorporated filters
    • A61M2205/126—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit with incorporated filters with incorporated membrane filters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/12—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit
    • A61M2205/128—General characteristics of the apparatus with interchangeable cassettes forming partially or totally the fluid circuit with incorporated valves
    • A—HUMAN NECESSITIES
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    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/15—Detection of leaks
    • A—HUMAN NECESSITIES
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    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A—HUMAN NECESSITIES
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    • A61M2205/3334—Measuring or controlling the flow rate
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    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A61M2205/3344—Measuring or controlling pressure at the body treatment site
    • A—HUMAN NECESSITIES
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    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/35—Communication
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    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/50—General characteristics of the apparatus with microprocessors or computers
    • A61M2205/502—User interfaces, e.g. screens or keyboards
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    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/50—General characteristics of the apparatus with microprocessors or computers
    • A61M2205/502—User interfaces, e.g. screens or keyboards
    • A61M2205/505—Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches

Abstract

An extracorporeal circuit (56) includes an arterial blood line (62) between an individual and a filter (34). A blood pump (92) in the arterial blood line circulates blood from the individual to the filter to remove waste. An air sensor (98) is located in the arterial blood line between the individual and the blood pump, to detect air in the arterial blood line before entering the filter.
PCT/US2000/042365 1999-11-29 2000-11-29 Systems and methods for detecting air in an arterial blood line of a blood processing circuit WO2001042758A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP00992815A EP1240494A2 (en) 1999-11-29 2000-11-29 Systems and methods for detecting air in an arterial blood line of a blood processing circuit
AU47091/01A AU4709101A (en) 1999-11-29 2000-11-29 Systems and methods for detecting air in an arterial blood line of a blood processing circuit
JP2001543998A JP2003520632A (en) 1999-11-29 2000-11-29 System and method for detecting air in an arterial blood line of a blood processing circuit

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US45123899A 1999-11-29 1999-11-29
US09/451,238 1999-11-29
US51356400A 2000-02-25 2000-02-25
US09/513,564 2000-02-25

Publications (2)

Publication Number Publication Date
WO2001042758A2 WO2001042758A2 (en) 2001-06-14
WO2001042758A3 true WO2001042758A3 (en) 2002-01-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/042365 WO2001042758A2 (en) 1999-11-29 2000-11-29 Systems and methods for detecting air in an arterial blood line of a blood processing circuit

Country Status (4)

Country Link
EP (1) EP1240494A2 (en)
JP (1) JP2003520632A (en)
AU (1) AU4709101A (en)
WO (1) WO2001042758A2 (en)

Cited By (4)

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US8834719B2 (en) 2007-10-24 2014-09-16 Baxter International Inc. Personal hemodialysis system
US8858488B2 (en) 2003-11-05 2014-10-14 Baxter International Inc. Dialysis system including blood and dialysate cassette
US8882692B2 (en) 2003-11-05 2014-11-11 Baxter International Inc. Hemodialysis system with multiple cassette interference
US8920362B2 (en) 2007-07-05 2014-12-30 Baxter International Inc. Dialysis system having disposable cassette

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US7241272B2 (en) 2001-11-13 2007-07-10 Baxter International Inc. Method and composition for removing uremic toxins in dialysis processes
DE10224750A1 (en) * 2002-06-04 2003-12-24 Fresenius Medical Care De Gmbh Device for the treatment of a medical fluid
WO2004009158A2 (en) 2002-07-19 2004-01-29 Baxter International Inc. Systems and methods for performing peritoneal dialysis
US7935070B2 (en) 2005-01-28 2011-05-03 Fresenius Medical Care North America Systems and methods for dextrose containing peritoneal dialysis (PD) solutions with neutral pH and reduced glucose degradation product
JP2008540061A (en) * 2005-05-17 2008-11-20 フレゼニウス・メデイカル・ケア・ホールデイングス・インコーポレーテツド Hemodialysis method and apparatus
US9415150B2 (en) 2007-11-09 2016-08-16 Baxter Healthcare S.A. Balanced flow dialysis machine
US8062513B2 (en) 2008-07-09 2011-11-22 Baxter International Inc. Dialysis system and machine having therapy prescription recall
US8057679B2 (en) 2008-07-09 2011-11-15 Baxter International Inc. Dialysis system having trending and alert generation
US9585810B2 (en) 2010-10-14 2017-03-07 Fresenius Medical Care Holdings, Inc. Systems and methods for delivery of peritoneal dialysis (PD) solutions with integrated inter-chamber diffuser
US9610392B2 (en) 2012-06-08 2017-04-04 Fresenius Medical Care Holdings, Inc. Medical fluid cassettes and related systems and methods
CA2985719C (en) 2015-06-25 2024-03-26 Gambro Lundia Ab Medical device system and method having a distributed database
AU2017381172A1 (en) 2016-12-21 2019-06-13 Gambro Lundia Ab Medical device system including information technology infrastructure having secure cluster domain supporting external domain
EP3505200B1 (en) 2017-12-29 2020-09-09 Gambro Lundia AB Apparatus for extracorporeal blood treatment

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US3946731A (en) * 1971-01-20 1976-03-30 Lichtenstein Eric Stefan Apparatus for extracorporeal treatment of blood
US5252213A (en) * 1989-06-20 1993-10-12 University Of Washington Dry dialysate composition
US5690831A (en) * 1995-02-13 1997-11-25 Aksys, Ltd. Method of rinsing back blood to hemodialysis patient
US6129699A (en) * 1997-10-31 2000-10-10 Sorenson Development, Inc. Portable persistaltic pump for peritoneal dialysis

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946731A (en) * 1971-01-20 1976-03-30 Lichtenstein Eric Stefan Apparatus for extracorporeal treatment of blood
US5252213A (en) * 1989-06-20 1993-10-12 University Of Washington Dry dialysate composition
US5690831A (en) * 1995-02-13 1997-11-25 Aksys, Ltd. Method of rinsing back blood to hemodialysis patient
US6129699A (en) * 1997-10-31 2000-10-10 Sorenson Development, Inc. Portable persistaltic pump for peritoneal dialysis

Cited By (18)

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EP1240494A2 (en) 2002-09-18
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WO2001042758A2 (en) 2001-06-14

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