DE60042530D1 - Pumpsystem zur Kompensation von Druckunterschieden zwischen Ventilen in Kassetten vom Type IV Pumpen - Google Patents

Pumpsystem zur Kompensation von Druckunterschieden zwischen Ventilen in Kassetten vom Type IV Pumpen

Info

Publication number
DE60042530D1
DE60042530D1 DE60042530T DE60042530T DE60042530D1 DE 60042530 D1 DE60042530 D1 DE 60042530D1 DE 60042530 T DE60042530 T DE 60042530T DE 60042530 T DE60042530 T DE 60042530T DE 60042530 D1 DE60042530 D1 DE 60042530D1
Authority
DE
Germany
Prior art keywords
plunger
pump
fluid
delivery
differential pressure
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
DE60042530T
Other languages
English (en)
Inventor
Peter A Holst
David A Krajewski
Rudolph J Maske
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.)
Hospira Inc
Original Assignee
Hospira 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 Hospira Inc filed Critical Hospira Inc
Application granted granted Critical
Publication of DE60042530D1 publication Critical patent/DE60042530D1/de
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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/14212—Pumping with an aspiration and an expulsion action
    • A61M5/14224—Diaphragm type
    • 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16804—Flow controllers
    • A61M5/16809—Flow controllers by repeated filling and emptying of an intermediate volume
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
    • G05D16/2026—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means
    • G05D16/2046—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means with a plurality of throttling means the plurality of throttling means being arranged for the control of a single pressure from a plurality of converging pressures
    • 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
    • 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
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A61M2205/3355—Controlling downstream pump pressure
    • 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
    • A61M2205/50—General characteristics of the apparatus with microprocessors or computers
    • 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16804—Flow controllers
    • A61M5/16827—Flow controllers controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths
    • 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
    • A61M5/365—Air detectors
DE60042530T 1999-12-17 2000-12-15 Pumpsystem zur Kompensation von Druckunterschieden zwischen Ventilen in Kassetten vom Type IV Pumpen Expired - Lifetime DE60042530D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/464,812 US6497680B1 (en) 1999-12-17 1999-12-17 Method for compensating for pressure differences across valves in cassette type IV pump

Publications (1)

Publication Number Publication Date
DE60042530D1 true DE60042530D1 (de) 2009-08-20

Family

ID=23845331

Family Applications (2)

Application Number Title Priority Date Filing Date
DE60042530T Expired - Lifetime DE60042530D1 (de) 1999-12-17 2000-12-15 Pumpsystem zur Kompensation von Druckunterschieden zwischen Ventilen in Kassetten vom Type IV Pumpen
DE60023937T Expired - Lifetime DE60023937T2 (de) 1999-12-17 2000-12-15 Vorrichtung zur kompensation von druckunterschieden zwischen ventilen in kasseten vom typ iv pumpen

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE60023937T Expired - Lifetime DE60023937T2 (de) 1999-12-17 2000-12-15 Vorrichtung zur kompensation von druckunterschieden zwischen ventilen in kasseten vom typ iv pumpen

Country Status (9)

Country Link
US (4) US6497680B1 (de)
EP (2) EP1237595B1 (de)
JP (1) JP4673535B2 (de)
AT (2) ATE435672T1 (de)
AU (1) AU778557B2 (de)
CA (2) CA2393337C (de)
DE (2) DE60042530D1 (de)
ES (2) ES2253280T3 (de)
WO (1) WO2001043798A1 (de)

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US6497680B1 (en) 2002-12-24
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ES2253280T3 (es) 2006-06-01
US7407489B2 (en) 2008-08-05
EP1237595A1 (de) 2002-09-11
ES2327750T3 (es) 2009-11-03
DE60023937D1 (de) 2005-12-15
ATE435672T1 (de) 2009-07-15
WO2001043798A1 (en) 2001-06-21
EP1611909A1 (de) 2006-01-04
ATE309013T1 (de) 2005-11-15
US20050235733A1 (en) 2005-10-27
US20030055375A1 (en) 2003-03-20
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US6942636B2 (en) 2005-09-13
CA2393337A1 (en) 2001-06-21
CA2649867A1 (en) 2001-06-21
US7402154B2 (en) 2008-07-22
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US20050238497A1 (en) 2005-10-27
AU2108401A (en) 2001-06-25

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