WO2007058951A3 - Peristaltic liquid infusion apparatus - Google Patents

Peristaltic liquid infusion apparatus Download PDF

Info

Publication number
WO2007058951A3
WO2007058951A3 PCT/US2006/043816 US2006043816W WO2007058951A3 WO 2007058951 A3 WO2007058951 A3 WO 2007058951A3 US 2006043816 W US2006043816 W US 2006043816W WO 2007058951 A3 WO2007058951 A3 WO 2007058951A3
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
mri
infusion apparatus
liquid infusion
pumping
Prior art date
Application number
PCT/US2006/043816
Other languages
French (fr)
Other versions
WO2007058951A8 (en
WO2007058951A2 (en
Inventor
Roger E Susi
Original Assignee
Iradimed Corp
Roger E Susi
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 Iradimed Corp, Roger E Susi filed Critical Iradimed Corp
Publication of WO2007058951A2 publication Critical patent/WO2007058951A2/en
Publication of WO2007058951A3 publication Critical patent/WO2007058951A3/en
Publication of WO2007058951A8 publication Critical patent/WO2007058951A8/en

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
    • 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
    • A61M5/14228—Pumping with an aspiration and an expulsion action with linear peristaltic action, i.e. comprising at least three pressurising members or a helical member
    • 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
    • A61M5/172—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 electrical or electronic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/082—Machines, pumps, or pumping installations having flexible working members having tubular flexible members the tubular flexible member being pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the axes of the tubular member and each having its own driving mechanism
    • 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
    • A61M2205/14—Detection of the presence or absence of a tube, a connector or a container in an apparatus
    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/26—Valves closing automatically on disconnecting the line and opening on reconnection thereof
    • 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
    • A61M5/1413—Modular systems comprising interconnecting elements

Abstract

Liquid infusion apparatus (41) includes non-magnetic materials in a pumping structure and ultrasonic drive motor therefor, and in a controller that supplies drive signals to the motor to facilitate convenient operation in intense magnetic fields without distorting the magnetic fields and without radiating objectionable radio-frequency interference. A non- MRI-compatible liquid infusion apparatus is temporarily replaced with MRI-compatible, non-magnetic liquid infusion apparatus without disconnecting a patient from an installed intravenous infusion set to continue infusing liquid within the MRI environment. The pumping apparatus operates on a segment (703) of a liquid conduit that is mounted in tension between a linear peristaltic pump and platen, with associated safety interlocks (705, 708, 723) to assure proper operation of infusing liquid into a patient compatibly with conditions in an MRI environment. Drive circuitry generates low-harmonic signals for operating the ultrasonic motor at variable speeds to compensate for flow rate discontinuities through the peristaltic pumping cycles.
PCT/US2006/043816 2005-11-10 2006-11-09 Peristaltic liquid infusion apparatus WO2007058951A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/271,705 2005-11-10
US11/271,705 US7553295B2 (en) 2002-06-17 2005-11-10 Liquid infusion apparatus

Publications (3)

Publication Number Publication Date
WO2007058951A2 WO2007058951A2 (en) 2007-05-24
WO2007058951A3 true WO2007058951A3 (en) 2007-08-23
WO2007058951A8 WO2007058951A8 (en) 2007-11-22

Family

ID=37896161

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/043816 WO2007058951A2 (en) 2005-11-10 2006-11-09 Peristaltic liquid infusion apparatus

Country Status (2)

Country Link
US (6) US7553295B2 (en)
WO (1) WO2007058951A2 (en)

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US9878089B2 (en) 2018-01-30
WO2007058951A8 (en) 2007-11-22
US10821223B2 (en) 2020-11-03
US7553295B2 (en) 2009-06-30
US20130281966A1 (en) 2013-10-24
US20210322671A1 (en) 2021-10-21
US20180236161A1 (en) 2018-08-23
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US20090264857A1 (en) 2009-10-22
US11045600B2 (en) 2021-06-29
US8469932B2 (en) 2013-06-25
US20210069408A1 (en) 2021-03-11

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