WO2009094590A3 - Two chamber pumps and related methods - Google Patents

Two chamber pumps and related methods Download PDF

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Publication number
WO2009094590A3
WO2009094590A3 PCT/US2009/031906 US2009031906W WO2009094590A3 WO 2009094590 A3 WO2009094590 A3 WO 2009094590A3 US 2009031906 W US2009031906 W US 2009031906W WO 2009094590 A3 WO2009094590 A3 WO 2009094590A3
Authority
WO
WIPO (PCT)
Prior art keywords
related methods
chamber pumps
chamber
pumps
fluid
Prior art date
Application number
PCT/US2009/031906
Other languages
French (fr)
Other versions
WO2009094590A2 (en
Inventor
Paul M. Diperna
Original Assignee
Tandem Care Diabetes, 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 Tandem Care Diabetes, Inc. filed Critical Tandem Care Diabetes, Inc.
Priority to EP09704892A priority Critical patent/EP2242421A4/en
Publication of WO2009094590A2 publication Critical patent/WO2009094590A2/en
Publication of WO2009094590A3 publication Critical patent/WO2009094590A3/en

Links

Classifications

    • 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
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06—Pumps having fluid drive
    • 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
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/148—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags
    • A61M5/1483—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags using flexible bags externally pressurised by fluid pressure
    • A61M5/1486—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons flexible, e.g. independent bags using flexible bags externally pressurised by fluid pressure the bags being substantially completely surrounded by fluid
    • 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
    • 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
    • A61M5/16886—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 for measuring fluid flow rate, i.e. flowmeters
    • 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
    • F04B43/10—Pumps having fluid drive
    • 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
    • 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
    • A61M2205/3368—Temperature

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hematology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Vascular Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • External Artificial Organs (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Measuring Volume Flow (AREA)

Abstract

Two chamber pumps and related methods provide a platform for measuring flow rate in about real time without contacting the material being pumped. Pressure and optional temperature sensors disposed in a pressurized chamber allow for fluid delivery calculations after being calibrated or by knowing the initial volume of the fluid to be delivered.
PCT/US2009/031906 2008-01-25 2009-01-23 Two chamber pumps and related methods WO2009094590A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09704892A EP2242421A4 (en) 2008-01-25 2009-01-23 Two chamber pumps and related methods

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/020,498 2008-01-25
US12/020,498 US20090191067A1 (en) 2008-01-25 2008-01-25 Two chamber pumps and related methods

Publications (2)

Publication Number Publication Date
WO2009094590A2 WO2009094590A2 (en) 2009-07-30
WO2009094590A3 true WO2009094590A3 (en) 2009-09-17

Family

ID=40899426

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/031906 WO2009094590A2 (en) 2008-01-25 2009-01-23 Two chamber pumps and related methods

Country Status (3)

Country Link
US (1) US20090191067A1 (en)
EP (1) EP2242421A4 (en)
WO (1) WO2009094590A2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8986253B2 (en) 2008-01-25 2015-03-24 Tandem Diabetes Care, Inc. Two chamber pumps and related methods
US8056582B2 (en) * 2008-08-08 2011-11-15 Tandem Diabetes Care, Inc. System of stepped flow rate regulation using compressible members
US8408421B2 (en) 2008-09-16 2013-04-02 Tandem Diabetes Care, Inc. Flow regulating stopcocks and related methods
CA2737461A1 (en) 2008-09-19 2010-03-25 Tandem Diabetes Care, Inc. Solute concentration measurement device and related methods
US9250106B2 (en) 2009-02-27 2016-02-02 Tandem Diabetes Care, Inc. Methods and devices for determination of flow reservoir volume
EP2401587A2 (en) 2009-02-27 2012-01-04 Tandem Diabetes Care, Inc. Methods and devices for determination of flow reservoir volume
US20110152770A1 (en) 2009-07-30 2011-06-23 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
US8579859B2 (en) * 2009-12-26 2013-11-12 Board Of Regents, The University Of Texas System Fluid balance monitoring system with fluid infusion pump for medical treatment
US9180242B2 (en) 2012-05-17 2015-11-10 Tandem Diabetes Care, Inc. Methods and devices for multiple fluid transfer
US9555186B2 (en) 2012-06-05 2017-01-31 Tandem Diabetes Care, Inc. Infusion pump system with disposable cartridge having pressure venting and pressure feedback
US10444770B2 (en) 2013-02-05 2019-10-15 Ivenix, Inc. Fluid flow measurement and control
US9433734B2 (en) * 2013-02-05 2016-09-06 Ivenix, Inc. Fluid flow measurement and control
US11285262B2 (en) 2013-02-05 2022-03-29 Ivenix, Inc. Fluid flow measurement and control
US9173998B2 (en) 2013-03-14 2015-11-03 Tandem Diabetes Care, Inc. System and method for detecting occlusions in an infusion pump
US9180243B2 (en) 2013-03-15 2015-11-10 Tandem Diabetes Care, Inc. Detection of infusion pump conditions
US11566614B2 (en) 2017-03-24 2023-01-31 Fresenius Kabi Usa, Llc Fluid flow control and delivery via multiple fluid pumps
US11542936B2 (en) 2017-03-24 2023-01-03 Fresenius Kabi Usa, Llc Fluid flow control and delivery via multiple fluid pumps

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US4826482A (en) * 1986-03-04 1989-05-02 Kamen Dean L Enhanced pressure measurement flow control system
US5421208A (en) * 1994-05-19 1995-06-06 Baxter International Inc. Instantaneous volume measurement system and method for non-invasively measuring liquid parameters
US20060150747A1 (en) * 2002-07-19 2006-07-13 Phluid, Inc. Infusion pump and method for use

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Publication number Priority date Publication date Assignee Title
US4778451A (en) * 1986-03-04 1988-10-18 Kamen Dean L Flow control system using boyle's law
US4826482A (en) * 1986-03-04 1989-05-02 Kamen Dean L Enhanced pressure measurement flow control system
US5421208A (en) * 1994-05-19 1995-06-06 Baxter International Inc. Instantaneous volume measurement system and method for non-invasively measuring liquid parameters
US20060150747A1 (en) * 2002-07-19 2006-07-13 Phluid, Inc. Infusion pump and method for use

Non-Patent Citations (1)

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Title
See also references of EP2242421A4 *

Also Published As

Publication number Publication date
US20090191067A1 (en) 2009-07-30
EP2242421A4 (en) 2013-03-13
EP2242421A2 (en) 2010-10-27
WO2009094590A2 (en) 2009-07-30

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