AU2001287589A1 - System elements for measuring pressure in extracorporeal circuits - Google Patents

System elements for measuring pressure in extracorporeal circuits

Info

Publication number
AU2001287589A1
AU2001287589A1 AU2001287589A AU8758901A AU2001287589A1 AU 2001287589 A1 AU2001287589 A1 AU 2001287589A1 AU 2001287589 A AU2001287589 A AU 2001287589A AU 8758901 A AU8758901 A AU 8758901A AU 2001287589 A1 AU2001287589 A1 AU 2001287589A1
Authority
AU
Australia
Prior art keywords
wall
chamber
membrane
transducer
housing
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.)
Abandoned
Application number
AU2001287589A
Inventor
Andreas Uberreiter
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.)
MHM Harzbecher Medizintechnik GmbH
Original Assignee
MHM HARZBECHER MEDIZINTECHNIK
MHM Harzbecher Medizintechnik GmbH
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 MHM HARZBECHER MEDIZINTECHNIK, MHM Harzbecher Medizintechnik GmbH filed Critical MHM HARZBECHER MEDIZINTECHNIK
Publication of AU2001287589A1 publication Critical patent/AU2001287589A1/en
Abandoned 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
    • A61M1/3639—Blood pressure control, pressure transducers specially adapted 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
    • A61M1/36—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
    • A61M1/3641—Pressure isolators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/0007—Fluidic connecting means
    • G01L19/0023—Fluidic connecting means for flowthrough systems having a flexible pressure transmitting element

Abstract

A system element for connecting a transducer with a fluid-flow system, in which part of the wall of the measuring chamber consists of a flexible membrane with a built-up edge which fits into a channel in the housing, the inner wall of the channel being lower than the outer wall. A system element (A) (1) for the reversibly sealed connection of a transducer with a fluid system, comprising a measuring chamber (7) connected with the fluid system in such a way as to allow through-flow and formed in a housing (10), part of the wall of chamber (7) being formed by a membrane (11) which is considerably more flexible than the rest of the wall (15). The membrane (11) has, on the side facing the chamber (7), a peripheral built-up section (20) which fits into a channel (19) formed in the housing and extending round the chamber (7), and the wall of the channel nearest the chamber (7) (inner wall 16) is lower than the wall furthest from the chamber (outer wall 17). Independent claims are also included for: (a) a system element (B) for the reversibly sealed connection of a transducer (12) to a fluid system containing sensor(s) for converting pressure and pressure changes into electrical signals, the sensor being mounted in a housing (26) containing a pressure-transferring fluid or gel, closed on one side by a transducer membrane (23) and configured in the area (24) surrounding the membrane for the attachment of a system element of type (A) (above), i.e. in such a way that this surrounding area (24) essentially encloses the membrane (23) in a ring, while the measuring range of the sensor at least covers differential pressures of -250 to +1000 mmHg in relation to the surroundings; (b) a set comprising elements (A) and (B), in which (A) forms a pressure dome and (B) forms a transducer.
AU2001287589A 2000-07-08 2001-07-09 System elements for measuring pressure in extracorporeal circuits Abandoned AU2001287589A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10032616A DE10032616A1 (en) 2000-07-08 2000-07-08 System element for transducer connection in pressure-monitoring sets for extracorporeal circuits, e.g. in open-heart surgery, has a measuring chamber with a membrane which fits in a special channel in the housing
DE10032616.1 2000-07-08
PCT/EP2001/007879 WO2002003854A2 (en) 2000-07-08 2001-07-09 System elements for measuring pressure in extracorporeal circuits

Publications (1)

Publication Number Publication Date
AU2001287589A1 true AU2001287589A1 (en) 2002-01-21

Family

ID=7647841

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001287589A Abandoned AU2001287589A1 (en) 2000-07-08 2001-07-09 System elements for measuring pressure in extracorporeal circuits

Country Status (6)

Country Link
US (1) US6880404B2 (en)
EP (1) EP1309272B1 (en)
AT (1) ATE451869T1 (en)
AU (1) AU2001287589A1 (en)
DE (3) DE10032616A1 (en)
WO (1) WO2002003854A2 (en)

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Also Published As

Publication number Publication date
EP1309272A2 (en) 2003-05-14
DE50115265D1 (en) 2010-01-28
DE10032616A1 (en) 2002-01-24
US6880404B2 (en) 2005-04-19
WO2002003854A2 (en) 2002-01-17
WO2002003854A3 (en) 2003-02-27
EP1309272B1 (en) 2009-12-16
ATE451869T1 (en) 2010-01-15
US20040050168A1 (en) 2004-03-18
DE20122806U1 (en) 2007-12-27

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