DE69429877T2 - Blutströmungsmessmethode in hämodialyseweiche - Google Patents

Blutströmungsmessmethode in hämodialyseweiche

Info

Publication number
DE69429877T2
DE69429877T2 DE69429877T DE69429877T DE69429877T2 DE 69429877 T2 DE69429877 T2 DE 69429877T2 DE 69429877 T DE69429877 T DE 69429877T DE 69429877 T DE69429877 T DE 69429877T DE 69429877 T2 DE69429877 T2 DE 69429877T2
Authority
DE
Germany
Prior art keywords
hemodialysis
soft
blood flow
measurement method
flow measurement
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
DE69429877T
Other languages
English (en)
Other versions
DE69429877D1 (de
Inventor
M Krivitski
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=DE69429877(T2) "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 DE69429877D1 publication Critical patent/DE69429877D1/de
Publication of DE69429877T2 publication Critical patent/DE69429877T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621Extra-corporeal blood circuits
    • A61M1/3653Interfaces between patient blood circulation and extra-corporal blood circuit
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621Extra-corporeal blood circuits
    • A61M1/3653Interfaces between patient blood circulation and extra-corporal blood circuit
    • A61M1/3655Arterio-venous shunts or fistulae
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621Extra-corporeal blood circuits
    • A61M1/3653Interfaces between patient blood circulation and extra-corporal blood circuit
    • A61M1/3656Monitoring patency or flow at connection sites; Detecting disconnections
    • A61M1/3658Indicating the amount of purified blood recirculating in the fistula or shunt
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621Extra-corporeal blood circuits
    • A61M1/3663Flow rate transducers; Flow integrators
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621Extra-corporeal blood circuits
    • A61M1/367Circuit parts not covered by the preceding subgroups of group A61M1/3621
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621Extra-corporeal blood circuits
    • A61M1/3669Electrical impedance measurement of body fluids; transducers specially adapted therefor
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00Liquid purification or separation
    • Y10S210/929Hemoultrafiltrate volume measurement or control processes
DE69429877T 1994-09-16 1994-11-18 Blutströmungsmessmethode in hämodialyseweiche Expired - Lifetime DE69429877T2 (de)

Applications Claiming Priority (2)

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
PCT/US1994/013163 WO1996008305A1 (en) 1994-09-16 1994-11-18 Blood flow measurement method in hemodialysis shunts

Publications (2)

Publication Number Publication Date
DE69429877D1 DE69429877D1 (de) 2002-03-21
DE69429877T2 true DE69429877T2 (de) 2002-11-28

Family

ID=23183086

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69429877T Expired - Lifetime DE69429877T2 (de) 1994-09-16 1994-11-18 Blutströmungsmessmethode in hämodialyseweiche

Country Status (7)

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

Cited By (2)

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DE10259437B3 (de) * 2002-12-19 2004-09-16 Fresenius Medical Care Deutschland Gmbh Verfahren und Vorrichtung zur Bestimmung des Blutflusses in einer blutführenden Leitung
DE102009060668A1 (de) * 2009-12-28 2011-06-30 Fresenius Medical Care Deutschland GmbH, 61352 Vorrichtung und Verfahren zur Überwachung einer extrakorporalen Blutbehandlung

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* Cited by examiner, † Cited by third party
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DE10259437B3 (de) * 2002-12-19 2004-09-16 Fresenius Medical Care Deutschland Gmbh Verfahren und Vorrichtung zur Bestimmung des Blutflusses in einer blutführenden Leitung
DE102009060668A1 (de) * 2009-12-28 2011-06-30 Fresenius Medical Care Deutschland GmbH, 61352 Vorrichtung und Verfahren zur Überwachung einer extrakorporalen Blutbehandlung
US10022485B2 (en) 2009-12-28 2018-07-17 Fresenius Medical Care Deutschland Gmbh Device and method for monitoring an extracorporeal blood treatment
US10973973B2 (en) 2009-12-28 2021-04-13 Fresenius Medical Gare Deutschland GmbH Device and method for monitoring an extracorporeal blood treatment

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JPH10505766A (ja) 1998-06-09
EP0781161B1 (de) 2002-02-13
JP3627042B2 (ja) 2005-03-09
ES2171524T3 (es) 2002-09-16
CA2198601C (en) 1999-08-17
DE69429877D1 (de) 2002-03-21
EP0781161A4 (de) 1998-10-07
EP0781161A1 (de) 1997-07-02
US5685989A (en) 1997-11-11
WO1996008305A1 (en) 1996-03-21
CA2198601A1 (en) 1996-03-21

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