ES2171524T3 - Procedimiento para la medicion del flujo sanguineo en las derivaciones de hemodialisis. - Google Patents

Procedimiento para la medicion del flujo sanguineo en las derivaciones de hemodialisis.

Info

Publication number
ES2171524T3
ES2171524T3 ES95902560T ES95902560T ES2171524T3 ES 2171524 T3 ES2171524 T3 ES 2171524T3 ES 95902560 T ES95902560 T ES 95902560T ES 95902560 T ES95902560 T ES 95902560T ES 2171524 T3 ES2171524 T3 ES 2171524T3
Authority
ES
Spain
Prior art keywords
blood flow
current
line
hemodialisis
arterial
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES95902560T
Other languages
English (en)
Inventor
Nikolai M Krivitski
David R Macgibbon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Transonic Systems Inc
Original Assignee
Transonic Systems 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23183086&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2171524(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Transonic Systems Inc filed Critical Transonic Systems Inc
Application granted granted Critical
Publication of ES2171524T3 publication Critical patent/ES2171524T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • A61M1/3653—Interfaces between patient blood circulation and extra-corporal blood circuit
    • 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
    • A61M1/3653—Interfaces between patient blood circulation and extra-corporal blood circuit
    • A61M1/3655—Arterio-venous shunts or fistulae
    • 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
    • A61M1/3653—Interfaces between patient blood circulation and extra-corporal blood circuit
    • A61M1/3656—Monitoring patency or flow at connection sites; Detecting disconnections
    • A61M1/3658—Indicating the amount of purified blood recirculating in the fistula or shunt
    • 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
    • A61M1/3663—Flow rate transducers; Flow integrators
    • 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
    • A61M1/3669—Electrical impedance measurement of body fluids; transducers specially adapted therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/929—Hemoultrafiltrate volume measurement or control processes

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Cardiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • External Artificial Organs (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

LA MEDIDA DEL FLUJO SANGUINEO EN DERIVADORES DE CORRIENTE DE HEMODIALISIS (12) SE OBTIENE POR LA INYECCION DE UN MATERIAL INDICADOR EN UNA LINEA VENOSA QUE VA DESDE EL EQUIPO DE DIALISIS (10) HASTA EL DERIVADOR DE CORRIENTE (12). EL FLUJO SANGUINEO EN LA LINEA ARTERIAL (26) QUE VA DESDE EL DERIVADOR DE CORRIENTE (12) EN UNA POSICION POR DEBAJO DE LA LINEA VENOSA (32) HASTA EL EQUIPO DE DIALISIS (10) ES CONTROLADO POR UN SENSOR DE LA LINEA ARTERIAL (50) PARA LA PRESENCIA DEL MATERIAL INDICADOR. UN DETECTOR (58) CONECTADO A UN SENSOR (50) PROPORCIONA UNA CURVA DE DILUCION EN RESPUESTA A LA PRESENCIA DEL MATERIAL INDICADOR, Y EL FLUJO SANGUINEO EN EL DERIVADOR DE CORRIENTE (12) ES CALCULADO A PARTIR DEL AREA POR DEBAJO DE LA CURVA DE DILUCION. LAS POSICIONES DE LAS LINEAS ARTERIAL Y VENOSA (26, 32) EN EL DERIVADOR DE CORRIENTE (12) PUEDEN SER INVERTIDAS PARA OBTENER UNA MEDIDA DE LA RECIRCULACION DE LA SANGRE DESDE LA LINEA VENOSA (32) AL INTERIOR DE LA LINEA ARTERIAL (26).
ES95902560T 1994-09-16 1994-11-18 Procedimiento para la medicion del flujo sanguineo en las derivaciones de hemodialisis. Expired - Lifetime ES2171524T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/305,953 US5685989A (en) 1994-09-16 1994-09-16 Method and apparatus to measure blood flow and recirculation in hemodialysis shunts

Publications (1)

Publication Number Publication Date
ES2171524T3 true ES2171524T3 (es) 2002-09-16

Family

ID=23183086

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95902560T Expired - Lifetime ES2171524T3 (es) 1994-09-16 1994-11-18 Procedimiento para la medicion del flujo sanguineo en las derivaciones de hemodialisis.

Country Status (7)

Country Link
US (1) US5685989A (es)
EP (1) EP0781161B1 (es)
JP (1) JP3627042B2 (es)
CA (1) CA2198601C (es)
DE (1) DE69429877T2 (es)
ES (1) ES2171524T3 (es)
WO (1) WO1996008305A1 (es)

Families Citing this family (124)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6740036B1 (en) 2000-07-18 2004-05-25 Lian-Pin Lee Optical and ultrasound probe for monitoring blood volume changes
US5644240A (en) 1992-09-30 1997-07-01 Cobe Laboratories, Inc. Differential conductivity hemodynamic monitor
US6514419B2 (en) 1994-09-16 2003-02-04 Transonic Systems, Inc. Method to measure blood flow and recirculation in hemodialysis shunts
US6153109A (en) 1994-09-16 2000-11-28 Transonic Systmes, Inc. Method and apparatus to measure blood flow rate in hemodialysis shunts
DE19528907C1 (de) * 1995-08-05 1996-11-07 Fresenius Ag Vorrichtung zur Ermittlung hämodynamischer Parameter während einer extrakorporalen Blutbehandlung
DE19541783C1 (de) * 1995-11-09 1997-03-27 Fresenius Ag Verfahren zum Betreiben einer Blutbehandlungsvorrichtung zur Ermittlung hämodynamischer Parameter während einer extrakorporalen Blutbehandlung und Vorrichtung zur Ermittlung hämodynamischer Parameter während einer extrakorporalen Blutbehandlung
IT1288767B1 (it) * 1996-10-18 1998-09-24 Hospal Dasco Spa Metodo di determinazione del valore del ricircolo di una sospensione sottoposta a trattamento.
AU5092098A (en) 1996-10-23 1998-05-15 In-Line Diagnostics Corporation System and method for noninvasive hemodynamic measurements in hemodialysis shunts
US6746415B1 (en) * 1996-10-23 2004-06-08 Hema Metrics, Inc. Method of blood constituent monitoring using improved disposable extracorporeal conduit
US6117099A (en) 1996-10-23 2000-09-12 In-Line Diagnostics Corporation System and method for noninvasive hemodynamic measurements in hemodialysis shunts
DE19746367C2 (de) * 1996-11-30 1999-08-26 Fresenius Medical Care De Gmbh Verfahren zur in-vivo-Bestimmung von Parametern der Hämodialyse und Vorrichtung zur Durchführung des Verfahrens
DE19702441C1 (de) * 1997-01-24 1998-02-26 Fresenius Medical Care De Gmbh Verfahren zur Bestimmung der Rezirkulation während einer extrakorporalen Blutbehandlung und Vorrichtung zur Durchführung des Verfahrens
US5919135A (en) * 1997-02-28 1999-07-06 Lemelson; Jerome System and method for treating cellular disorders in a living being
DE19739099C1 (de) * 1997-09-06 1999-01-28 Fresenius Medical Care De Gmbh Verfahren zur Überwachung eines Gefäßzuganges während einer extrakorporalen Blutbehandlung und Vorrichtung zur extrakorporalen Blutbehandlung mit einer Einrichtung zur Überwachung eines Gefäßzuganges
US6189388B1 (en) 1997-11-12 2001-02-20 Gambro, Inc. Access flow monitoring using reversal of normal blood flow
US6648845B1 (en) * 1998-01-07 2003-11-18 Fresenius Medical Care North America Method and apparatus for determining hemodialysis parameters
US6177049B1 (en) 1998-06-10 2001-01-23 Dsu Medical Corporation Reversing flow blood processing system
US6575927B1 (en) * 1998-09-25 2003-06-10 The Regents Of The University Of Michigan System and method for determining blood flow rate in a vessel
US6167765B1 (en) 1998-09-25 2001-01-02 The Regents Of The University Of Michigan System and method for determining the flow rate of blood in a vessel using doppler frequency signals
US6726647B1 (en) 1998-10-23 2004-04-27 Gambro Ab Method and device for measuring access flow
CA2345965C (en) 1998-10-23 2010-12-14 Gambro Lundia Ab Method and device for measuring access flow
DE19859811C2 (de) * 1998-12-23 2001-05-10 Hilekes Guido Kontrastmittelinjektionssystem
DE19901078C1 (de) * 1999-01-14 2000-02-17 Polaschegg Hans Dietrich Verfahren und Vorrichtung zur Erkennung von Stenosen bei der extrakorporalen Blutbehandlung
US6986744B1 (en) 1999-02-02 2006-01-17 Transonic Systems, Inc. Method and apparatus for determining blood flow during a vascular corrective procedure
DE19917197C1 (de) * 1999-04-16 2000-07-27 Fresenius Medical Care De Gmbh Verfahren und Vorrichtung zur Ermittlung des Blutflusses in einem Gefäßzugang
US6319465B1 (en) 1999-06-03 2001-11-20 Dsu Medical Corporation Reversing flow blood processing system having reduced clotting potential
US6868739B1 (en) 1999-10-19 2005-03-22 Transonic Systems, Inc. Method and apparatus to measure blood flow by an introduced volume change
US6887214B1 (en) 2000-09-12 2005-05-03 Chf Solutions, Inc. Blood pump having a disposable blood passage cartridge with integrated pressure sensors
US6890315B1 (en) * 2000-05-23 2005-05-10 Chf Solutions, Inc. Method and apparatus for vein fluid removal in heart failure
US6533747B1 (en) 2000-05-23 2003-03-18 Chf Solutions, Inc. Extracorporeal circuit for peripheral vein fluid removal
US6468241B1 (en) 2000-10-26 2002-10-22 Chf Solutions, Inc. Artificial kidney set with electronic key
US6585675B1 (en) 2000-11-02 2003-07-01 Chf Solutions, Inc. Method and apparatus for blood withdrawal and infusion using a pressure controller
US6689083B1 (en) 2000-11-27 2004-02-10 Chf Solutions, Inc. Controller for ultrafiltration blood circuit which prevents hypotension by monitoring osmotic pressure in blood
US6706007B2 (en) * 2000-12-29 2004-03-16 Chf Solutions, Inc. Feedback control of ultrafiltration to prevent hypotension
US6773412B2 (en) * 2001-04-13 2004-08-10 Chf Solutions, Inc. User interface for blood treatment device
US8337444B2 (en) * 2001-05-22 2012-12-25 Alfred E. Mann Institute For Biomedical Engineering At The University Of Southern California Measurement of cardiac output and blood volume by non-invasive detection of indicator dilution for hemodialysis
US20080027298A1 (en) * 2001-05-22 2008-01-31 Alfred E. Mann Institute For Biomedical Engineering At The University Of Southern Californ System for Repetitive Measurements of Cardiac Output in Freely Moving Individuals
US6757554B2 (en) * 2001-05-22 2004-06-29 Alfred E. Mann Institute For Biomedical Engineering At The University Of Southern California Measurement of cardiac output and blood volume by non-invasive detection of indicator dilution
US7474906B2 (en) * 2001-05-22 2009-01-06 Alfred E. Mann Institute For Biomedical Engineering At The University Of Southern California Method for dye injection for the transcutaneous measurement of cardiac output
US6746408B2 (en) * 2001-05-29 2004-06-08 Transonic Systems Inc. Method of blood flow measurement in arterio-venous hemodialysis shunts by indicator dilution
ITMI20011395A1 (it) * 2001-06-29 2002-12-29 Gambro Dasco Spa Metodo e dispositivo di rilevamento del distacco dell'ago venoso da un paziente durante un trattamento extracorporeo del sangue in una macch
US7241272B2 (en) 2001-11-13 2007-07-10 Baxter International Inc. Method and composition for removing uremic toxins in dialysis processes
SE0200370D0 (sv) 2002-02-08 2002-02-08 Gambro Lundia Ab Method and apparatus for determining access flow
US6796955B2 (en) * 2002-02-14 2004-09-28 Chf Solutions, Inc. Method to control blood and filtrate flowing through an extracorporeal device
US20040068201A1 (en) * 2002-02-15 2004-04-08 Eunoe, Inc. Systems and methods for flow detection and measurement in CSF shunts
US7138088B2 (en) * 2002-04-10 2006-11-21 Baxter International Inc. Access disconnection system and methods
US10155082B2 (en) 2002-04-10 2018-12-18 Baxter International Inc. Enhanced signal detection for access disconnection systems
US7052480B2 (en) * 2002-04-10 2006-05-30 Baxter International Inc. Access disconnection systems and methods
US20040254513A1 (en) 2002-04-10 2004-12-16 Sherwin Shang Conductive polymer materials and applications thereof including monitoring and providing effective therapy
US7022098B2 (en) * 2002-04-10 2006-04-04 Baxter International Inc. Access disconnection systems and methods
US7734326B2 (en) * 2002-06-20 2010-06-08 Brainlab Ag Method and device for preparing a drainage
EP1523350B1 (en) 2002-07-19 2011-04-13 Baxter International Inc. System for performing peritoneal dialysis
DE10259437B3 (de) * 2002-12-19 2004-09-16 Fresenius Medical Care Deutschland Gmbh Verfahren und Vorrichtung zur Bestimmung des Blutflusses in einer blutführenden Leitung
CA2514239C (en) 2003-01-28 2012-03-20 Gambro Lundia Ab An apparatus and method for monitoring a vascular access of a patient
US8038639B2 (en) 2004-11-04 2011-10-18 Baxter International Inc. Medical fluid system with flexible sheeting disposable unit
US8029454B2 (en) 2003-11-05 2011-10-04 Baxter International Inc. High convection home hemodialysis/hemofiltration and sorbent system
WO2005049113A1 (en) * 2003-11-20 2005-06-02 Gambro Lundia Ab Method, apparatus and software program for measurement of a parameter relating to a heart-lung system of a mammal.
EP1691885B1 (en) * 2003-12-11 2014-04-02 Gambro Lundia AB Switching device and apparatus for controlling flow of a fluid
US7303540B2 (en) * 2004-04-26 2007-12-04 Chf Solutions, Inc. User interface for blood treatment device
CN100548392C (zh) * 2004-08-24 2009-10-14 日机装株式会社 血液净化装置
JP4868772B2 (ja) * 2004-08-24 2012-02-01 日機装株式会社 血液浄化装置
US7261696B2 (en) * 2004-09-09 2007-08-28 Transonic Systems, Inc. Method and apparatus for measuring cardiac output via an extracorporeal cardiopulmonary support circuit
EP1833546B1 (en) 2004-10-07 2014-03-19 Fresenius Medical Care Holdings, Inc. Blood flow reversal valve
US7758530B2 (en) * 2004-11-10 2010-07-20 Bard Access Systems, Inc. Method for measuring recirculation in catheters
DE102005001051B4 (de) * 2005-01-07 2007-10-31 Fresenius Medical Care Deutschland Gmbh Vorrichtung und Verfahren zur Erkennung von Komplikationen während einer extrakorporalen Blutbehandlung
DE602005023356D1 (de) * 2005-05-18 2010-10-14 Gambro Lundia Ab Vorrichtung zur steuerung des blutflusses in einem extrakorporalen kreislauf
JP4925159B2 (ja) * 2005-10-12 2012-04-25 日機装株式会社 血液浄化装置
EP1981401A4 (en) 2006-01-20 2010-07-21 Alfred E Mann Inst Biomed Eng MEASURE HEART MINUTES VOLUME AND BLOOD VOLUME BY NON-INVASIVE DETECTION OF INDICATOR DILUTION
EP1813188B1 (de) * 2006-01-30 2011-03-30 Pulsion Medical Systems AG System zum Einrichten einer Dilutionsmessstelle
RU2309668C1 (ru) * 2006-02-20 2007-11-10 Александр Сергеевич Парфенов Способ неинвазивного определения функции эндотелия и устройство для его осуществления
US7815588B2 (en) * 2006-06-07 2010-10-19 Paul Sakiewicz Method and device for reversing lines in the procedure of hemodialysis
WO2008057478A2 (en) * 2006-11-03 2008-05-15 The Regents Of The University Of Michigan Method and system for determining volume flow in a blood conduit
US20080149563A1 (en) * 2006-12-22 2008-06-26 Renal Solutions, Inc. Method of controlling dialysis using blood circulation times
FR2911417B1 (fr) 2007-01-17 2009-02-27 Gambro Lundia Ab Suivi de l'acces vasculaire d'un patient soumis a des seances successives de traitement extracorporel de sang
US8631683B2 (en) * 2007-02-06 2014-01-21 Fresenius Medical Care Holdings, Inc. Dialysis systems including non-invasive multi-function sensor systems
WO2009061769A1 (en) * 2007-11-06 2009-05-14 Alfred E. Mann Institute For Biomedical Engineering At The University Of Southern Califorina Measurement of hematocrit and cardiac output from optical transmission and reflection changes
DE102007056475A1 (de) * 2007-11-22 2009-06-04 Fresenius Medical Care Deutschland Gmbh Verfahren und Vorrichtung zum Bestimmen der Rezirkulation in einer Fistel oder der kardiopulmonalen Rezirkulation sowie Blutbehandlungsvorrichtung mit einer Vorrichtung zur Bestimmung der Fistelrezirkulation oder des kardiopulmonalen Rezirkulationsanteils
US20090192469A1 (en) * 2008-01-24 2009-07-30 Istvan Bognar Devices and Methods for Development of a Scar Tissue Tunnel Track
US8057679B2 (en) 2008-07-09 2011-11-15 Baxter International Inc. Dialysis system having trending and alert generation
US20100051552A1 (en) 2008-08-28 2010-03-04 Baxter International Inc. In-line sensors for dialysis applications
US20100152544A1 (en) * 2008-11-19 2010-06-17 Spectrum Medical Limited Cardiac monitoring system and method
ITMI20090400A1 (it) * 2009-03-16 2010-09-17 Datamed Srl Metodo di misurazione della velocita' di un fluido e relativa apparecchiatura.
US8057400B2 (en) 2009-05-12 2011-11-15 Angiologix, Inc. System and method of measuring changes in arterial volume of a limb segment
DE102009060668A1 (de) * 2009-12-28 2011-06-30 Fresenius Medical Care Deutschland GmbH, 61352 Vorrichtung und Verfahren zur Überwachung einer extrakorporalen Blutbehandlung
US8694271B2 (en) 2010-12-03 2014-04-08 Hema-Q, Inc. Apparatus and method for non invasive measurement of properties of a fluid flowing in a flexible tubing or conduit
US8844359B2 (en) 2010-12-03 2014-09-30 Hema-Q, Inc. Apparatus for noninvasive measurement of properties of a fluid flowing in a tubing having a smaller inner diameter passage
US9283315B2 (en) 2011-02-08 2016-03-15 Fresenius Medical Care Holdings, Inc. Apparatus and method for real time measurement of a constituent of blood to monitor blood volume
US8836519B2 (en) 2011-05-12 2014-09-16 Fresenius Medical Care Holdings, Inc. Determining the absence or presence of fluid in a dialysis system
US9333286B2 (en) 2011-05-12 2016-05-10 Fresenius Medical Care Holdings, Inc. Medical tubing installation detection
US8714017B2 (en) 2011-11-15 2014-05-06 Hema-Q, Inc. Apparatus for non-invasive determination of sound velocity in a liquid and determining a parameter of the liquid from the sound velocity
DE102012104461A1 (de) * 2012-05-23 2013-12-12 B. Braun Avitum Ag Medizinisches Gerät zur extrakorporalen Blutbehandlung mit mehreren Sensoreinheiten
US9415151B2 (en) 2012-09-25 2016-08-16 Fresenius Medical Care Holdings, Inc. Blood flow reversal valves and related systems and methods
DE102013103220A1 (de) 2013-03-28 2014-10-02 B. Braun Avitum Ag Verfahren und Vorrichtung zur Bestimmung eines Rezirkulationszustands
DE102013103222A1 (de) 2013-03-28 2014-10-02 B. Braun Avitum Ag Rezirkulationsdetektion durch Bolusgabe
EP2792377A1 (en) 2013-04-15 2014-10-22 Gambro Lundia AB Medical infrastructure and medical monitoring apparatus for surveillance of patients over a plurality of extracorporeal blood treatment sessions
CN106460176B (zh) 2014-04-28 2020-02-07 凯普卓尼克技术公司 表面的金属化
ES2987653T3 (es) 2015-06-25 2024-11-15 Gambro Lundia Ab Sistema y método de dispositivo médico que tiene una base de datos distribuida
WO2018065275A1 (en) 2016-10-03 2018-04-12 Gambro Lundia Ab Measuring access flow rate by use of blood treatment machine
DE102016119259A1 (de) * 2016-10-10 2018-04-12 B. Braun Avitum Ag Vorrichtung und Verfahren zur Rezirkulationsmessung
WO2018114346A1 (en) 2016-12-21 2018-06-28 Gambro Lundia Ab Medical device system including information technology infrastructure having secure cluster domain supporting external domain
JP7038358B2 (ja) * 2017-09-14 2022-03-18 株式会社アルチザンラボ 血液浄化装置
JP7061509B2 (ja) 2018-04-26 2022-04-28 日機装株式会社 血液浄化装置
DE102018208538A1 (de) 2018-05-30 2019-12-05 Kardion Gmbh Intravasale Blutpumpe und Verfahren zur Herstellung von elektrischen Leiterbahnen
DE102018208945A1 (de) 2018-06-06 2019-12-12 Kardion Gmbh Analysevorrichtung und Verfahren zum Analysieren einer Viskosität eines Fluids
DE102018208929A1 (de) 2018-06-06 2019-12-12 Kardion Gmbh Verfahren zur Bestimmung einer Strömungsgeschwindigkeit eines durch ein implantiertes, vaskuläres Unterstützungssystem strömenden Fluids
DE102018208913A1 (de) 2018-06-06 2019-12-12 Kardion Gmbh Verfahren zum Betreiben eines implantierten, ventrikulären Unterstützungssystems
DE102018208879A1 (de) 2018-06-06 2020-01-30 Kardion Gmbh Verfahren zur Bestimmung eines Fluid-Gesamtvolumenstroms im Bereich eines implantierten, vaskuläres Unterstützungssystems
DE102018208899A1 (de) * 2018-06-06 2019-12-12 Kardion Gmbh Verfahren zum Ermitteln der Schallgeschwindigkeit in einem Fluid im Bereich eines implantierten, vaskulären Unterstützungssystems
DE102018208862A1 (de) 2018-06-06 2019-12-12 Kardion Gmbh Implantierbares, vaskuläres Unterstützungssystem
DE102018208892A1 (de) 2018-06-06 2019-12-12 Kardion Gmbh Sensorkopfvorrichtung für ein minimalinvasives Herzunterstützungssystem und Verfahren zum Herstellen einer Sensorkopfvorrichtung für ein Herzunterstützungssystem
DE102018208870A1 (de) 2018-06-06 2019-12-12 Kardion Gmbh Verfahren zur Bestimmung eines Fluid-Volumenstroms durch ein implantiertes, vaskuläres Unterstützungssystem
DE102018208936A1 (de) 2018-06-06 2019-12-12 Kardion Gmbh Bestimmvorrichtung und Verfahren zum Bestimmen einer Viskosität eines Fluids
DE102018208933A1 (de) 2018-06-06 2019-12-12 Kardion Gmbh Verfahren zur Bestimmung einer Strömungsgeschwindigkeit eines durch ein implantiertes, vaskuläres Unterstützungssystem strömenden Fluids
DE102018208931A1 (de) 2018-06-06 2019-12-12 Kardion Gmbh Vorrichtung zum Bestimmen eines Herzzeitvolumens für ein Herzunterstützungssystem, Herzunterstützungssystem und Verfahren zum Bestimmen eines Herzzeitvolumens
DE102018210076A1 (de) 2018-06-21 2019-12-24 Kardion Gmbh Verfahren und Vorrichtung zum Erkennen eines Verschleißzustands eines Herzunterstützungssystems, Verfahren und Vorrichtung zum Betreiben eines Herzunterstützungssystems und Herzunterstützungssystem
DE102018213350A1 (de) 2018-08-08 2020-02-13 Kardion Gmbh Vorrichtung und Verfahren zur Überwachung eines Gesundheitszustands des Patienten
WO2020154638A1 (en) 2019-01-25 2020-07-30 Transonic Systems, Inc. Method and apparatus for assessing cardiac output in veno-venous extracorporeal blood oxygenation
US11633525B2 (en) 2019-01-29 2023-04-25 Transonic Systems Inc. Method and apparatus for assessing cardiac output in veno-arterial extracorporeal blood oxygenation
DE102019110218A1 (de) 2019-04-17 2020-10-22 B.Braun Avitum Ag Rezirkulationsmessung mittels Diffusionsgleichgewicht
JP7347857B2 (ja) 2019-05-02 2023-09-20 トランソニック システムズ インク 静脈－静脈体外血液酸素化を受けている患者の心拍出量の計算
US12415057B2 (en) * 2019-10-31 2025-09-16 Musc Foundation For Research Development Ultrasound-based shunt flow detection
DE102021116343A1 (de) 2021-06-24 2022-12-29 B.Braun Avitum Ag Rezirkulationsmessung mittels zwei Interimsschaltungen mit kinetisch unterschiedlichen Diffusionszuständen
US12502524B2 (en) 2021-12-03 2025-12-23 Kardion Gmbh Cardiac pump with optical fiber for laser doppler
WO2025173752A1 (ja) * 2024-02-14 2025-08-21 日機装株式会社 血液浄化装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3640271A (en) * 1969-06-30 1972-02-08 Ibm Blood flow pressure measurement technique employing injected bubbled and ultrasonic frequency scanning
US3964479A (en) * 1974-11-20 1976-06-22 Cobe Laboratories, Inc. Extracorporeal blood circulation system and drip chamber with adjustable blood level
CS200909B1 (en) * 1977-12-23 1980-10-31 Petr Slovak Haemodlialysation device
EP0018817A1 (en) * 1979-04-30 1980-11-12 Peter Gilbert Lale Method and apparatus for measuring drip rate
US4361049A (en) * 1980-08-18 1982-11-30 The Hospital For Sick Children Apparatus for calculating cardiac output
US4391124A (en) * 1981-02-26 1983-07-05 Cornell Research Foundation, Inc. Electroacoustic transducer calibration method and apparatus
US4434648A (en) * 1981-02-26 1984-03-06 Cornell Research Foundation, Inc. Electroacoustic transducer calibration method and apparatus
EP0089003B1 (en) * 1982-03-10 1987-11-25 Kabushiki Kaisha Toyota Chuo Kenkyusho Blood purification apparatus
US4432231A (en) * 1982-06-28 1984-02-21 Baxter Travenol Laboratories, Inc. Ultrasonic level detector
US4856321A (en) * 1983-07-29 1989-08-15 Panametrics, Inc. Apparatus and methods for measuring fluid flow parameters
US4777958A (en) * 1985-10-28 1988-10-18 Board Of Regents, The University Of Texas System Method for enhancing the accuracy of in vivo sound velocity estimation
SE459641B (sv) * 1986-03-24 1989-07-24 Gambro Ab Detektorsystem foer kontroll av en foer ledning av blod alternerande med en vaesentligen faergloes vaetska avsedd vaetskeslang
US5230341A (en) * 1988-08-13 1993-07-27 Fresenius Ag Measuring the change of intravascular blood volume during blood filtration
US5312550B1 (en) * 1992-04-27 1996-04-23 Robert L Hester Method for detecting undesired dialysis recirculation
DE69319685T2 (de) * 1992-09-30 1998-11-12 Cobe Lab Differentialleitungsfähigkeitsrückströmungsmonitor
US5453576A (en) * 1994-10-24 1995-09-26 Transonic Systems Inc. Cardiovascular measurements by sound velocity dilution

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CA2198601C (en) 1999-08-17
US5685989A (en) 1997-11-11
CA2198601A1 (en) 1996-03-21
EP0781161A4 (en) 1998-10-07
EP0781161A1 (en) 1997-07-02
DE69429877D1 (de) 2002-03-21
WO1996008305A1 (en) 1996-03-21
JP3627042B2 (ja) 2005-03-09
DE69429877T2 (de) 2002-11-28
JPH10505766A (ja) 1998-06-09

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