ES2149797T3 - Metodo y sistema para la medicion de la concentracion de una sustancia en un fluido. - Google Patents

Metodo y sistema para la medicion de la concentracion de una sustancia en un fluido.

Info

Publication number
ES2149797T3
ES2149797T3 ES93116848T ES93116848T ES2149797T3 ES 2149797 T3 ES2149797 T3 ES 2149797T3 ES 93116848 T ES93116848 T ES 93116848T ES 93116848 T ES93116848 T ES 93116848T ES 2149797 T3 ES2149797 T3 ES 2149797T3
Authority
ES
Spain
Prior art keywords
substance
concentration
fluid
conductivity
measuring
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
ES93116848T
Other languages
English (en)
Inventor
Giuseppe Caputo
Ciana Leopoldo Della
Silvio Sacco
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.)
Bellco SRL
Original Assignee
Bellco SRL
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 Bellco SRL filed Critical Bellco SRL
Application granted granted Critical
Publication of ES2149797T3 publication Critical patent/ES2149797T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/021—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance before and after chemical transformation of the material
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Pathology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vascular Medicine (AREA)
  • Analytical Chemistry (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

LA CONCENTRACION DE UNA SUSTANCIA EN UN FLUIDO SE DETERMINA DETECTANDO LA CONDUCTIVIDAD ELECTRICA DEL FLUIDO QUE CONTIENE LA SUSTANCIA ANTES (11) Y DESPUES (13) DE LA CONVERSION ENZIMATICA TOTAL (12) DE LA SUSTANCIA DENTRO DE LOS PRODUCTOS DE CONVERSION LLEVADO DE MANERA A DETERMINAR UN CAMBIO EN LA CONDUCTIVIDAD ELECTRICA DEL FLUIDO. LA DIFERENCIA ENTRE LOS DOS VALORES DE CONDUCTIVIDAD ASI DETERMINADOS ES INDICATIVA DEL VALOR DE CONCENTRACION BUSCADO. LA APLICACION PREFERIDA ES PARA DETERMINAR LA CONCENTRACION DE UREA EN UN ULTRAFILTRADO U OTRO LIQUIDO DENTRO DE EQUIPO DE PURIFICACION DE LA SANGRE.
ES93116848T 1993-03-01 1993-10-19 Metodo y sistema para la medicion de la concentracion de una sustancia en un fluido. Expired - Lifetime ES2149797T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO930145A IT1260614B (it) 1993-03-01 1993-03-01 Procedimento per misurare la concentrazione di una sostanza in un fluido, relativo sistema ed impiego

Publications (1)

Publication Number Publication Date
ES2149797T3 true ES2149797T3 (es) 2000-11-16

Family

ID=11411212

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93116848T Expired - Lifetime ES2149797T3 (es) 1993-03-01 1993-10-19 Metodo y sistema para la medicion de la concentracion de una sustancia en un fluido.

Country Status (4)

Country Link
EP (1) EP0614081B1 (es)
DE (1) DE69329015T2 (es)
ES (1) ES2149797T3 (es)
IT (1) IT1260614B (es)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3820163B2 (ja) 2002-02-22 2006-09-13 三井化学株式会社 尿素濃度測定方法および装置
US8482298B2 (en) * 2006-12-18 2013-07-09 Schrader Electronics Ltd. Liquid level and composition sensing systems and methods using EMF wave propagation
DE102010041523A1 (de) 2010-09-28 2012-03-29 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Verfahren zum Betreiben eines Messgeräts mit mindestens einer Sonde, welche mindestens eine ionenselektive Elektrode aufweist
US10695481B2 (en) 2011-08-02 2020-06-30 Medtronic, Inc. Hemodialysis system having a flow path with a controlled compliant volume
US9713666B2 (en) 2013-01-09 2017-07-25 Medtronic, Inc. Recirculating dialysate fluid circuit for blood measurement
US11565029B2 (en) 2013-01-09 2023-01-31 Medtronic, Inc. Sorbent cartridge with electrodes
US9707328B2 (en) 2013-01-09 2017-07-18 Medtronic, Inc. Sorbent cartridge to measure solute concentrations
US11154648B2 (en) * 2013-01-09 2021-10-26 Medtronic, Inc. Fluid circuits for sorbent cartridge with sensors
US10010663B2 (en) 2013-02-01 2018-07-03 Medtronic, Inc. Fluid circuit for delivery of renal replacement therapies
US9623164B2 (en) 2013-02-01 2017-04-18 Medtronic, Inc. Systems and methods for multifunctional volumetric fluid control
US10850016B2 (en) 2013-02-01 2020-12-01 Medtronic, Inc. Modular fluid therapy system having jumpered flow paths and systems and methods for cleaning and disinfection
US9144640B2 (en) 2013-02-02 2015-09-29 Medtronic, Inc. Sorbent cartridge configurations for improved dialysate regeneration
US9884145B2 (en) 2013-11-26 2018-02-06 Medtronic, Inc. Parallel modules for in-line recharging of sorbents using alternate duty cycles
US10537875B2 (en) 2013-11-26 2020-01-21 Medtronic, Inc. Precision recharging of sorbent materials using patient and session data
WO2015199768A1 (en) 2014-06-24 2015-12-30 Medtronic, Inc. Stacked sorbent assembly
WO2015199766A1 (en) 2014-06-24 2015-12-30 Medtronic, Inc. Modular dialysate regeneration assembly
DE102016117733A1 (de) 2015-10-09 2017-04-13 Endress+Hauser Conducta Gmbh+Co. Kg Messeinrichtung
US10981148B2 (en) 2016-11-29 2021-04-20 Medtronic, Inc. Zirconium oxide module conditioning
US10960381B2 (en) 2017-06-15 2021-03-30 Medtronic, Inc. Zirconium phosphate disinfection recharging and conditioning
CN107699481B (zh) * 2017-09-26 2023-11-07 河海大学 一种微生物固化实验中测定尿素水解细菌全过程活性的装置及其方法
US11213616B2 (en) 2018-08-24 2022-01-04 Medtronic, Inc. Recharge solution for zirconium phosphate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839154A (en) * 1973-08-20 1974-10-01 Corning Glass Works Apparatus and method for measuring conductivity change in a glucose-glucose oxidase reaction
JPS5935596B2 (ja) * 1980-10-27 1984-08-29 横河電機株式会社 クレアチニンの測定方法および測定装置
DE3900119C1 (en) * 1989-01-04 1990-08-02 Stiller, Siegfried, Dipl.-Phys., 5100 Aachen, De Apparatus for measuring the urea concentration in an extracorporeal circulation

Also Published As

Publication number Publication date
DE69329015T2 (de) 2000-11-16
ITTO930145A0 (it) 1993-03-01
ITTO930145A1 (it) 1994-09-01
EP0614081A1 (en) 1994-09-07
IT1260614B (it) 1996-04-22
EP0614081B1 (en) 2000-07-12
DE69329015D1 (de) 2000-08-17

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