BR0007066A - Sistemas e métodos de bombeamento de sangue atuados por pressão de fluido com condições de influxo contìnuas e de efluxo pulsantes - Google Patents

Sistemas e métodos de bombeamento de sangue atuados por pressão de fluido com condições de influxo contìnuas e de efluxo pulsantes

Info

Publication number
BR0007066A
BR0007066A BR0007066-1A BR0007066A BR0007066A BR 0007066 A BR0007066 A BR 0007066A BR 0007066 A BR0007066 A BR 0007066A BR 0007066 A BR0007066 A BR 0007066A
Authority
BR
Brazil
Prior art keywords
fluid
pumping
systems
methods
destination
Prior art date
Application number
BR0007066-1A
Other languages
English (en)
Inventor
Tom Westberg
Rohit Vishnoi
Mark R Vandlik
Original Assignee
Baxter Int
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 Baxter Int filed Critical Baxter Int
Publication of BR0007066A publication Critical patent/BR0007066A/pt

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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
    • A61M1/3693—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits using separation based on different densities of components, e.g. centrifuging
    • A61M1/3696—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits using separation based on different densities of components, e.g. centrifuging with means for adding or withdrawing liquid substances during the centrifugation, e.g. continuous centrifugation
    • 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
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/30—Single needle dialysis ; Reciprocating systems, alternately withdrawing blood from and returning it to the patient, e.g. single-lumen-needle dialysis or single needle systems for hemofiltration or pheresis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/30—Single needle dialysis ; Reciprocating systems, alternately withdrawing blood from and returning it to the patient, e.g. single-lumen-needle dialysis or single needle systems for hemofiltration or pheresis
    • A61M1/301—Details
    • A61M1/302—Details having a reservoir for withdrawn untreated blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/30—Single needle dialysis ; Reciprocating systems, alternately withdrawing blood from and returning it to the patient, e.g. single-lumen-needle dialysis or single needle systems for hemofiltration or pheresis
    • A61M1/301—Details
    • A61M1/303—Details having a reservoir for treated blood to be returned
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/30—Single needle dialysis ; Reciprocating systems, alternately withdrawing blood from and returning it to the patient, e.g. single-lumen-needle dialysis or single needle systems for hemofiltration or pheresis
    • A61M1/301—Details
    • A61M1/305—Control of inversion point between collection and re-infusion phase
    • A61M1/308—Volume control, e.g. with open or flexible containers, by counting the number of pump revolutions, weighing
    • A—HUMAN NECESSITIES
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    • 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
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    • A61M1/36226—Constructional details of cassettes, e.g. specific details on material or shape
    • A61M1/362261—Constructional details of cassettes, e.g. specific details on material or shape at least one cassette surface or portion thereof being flexible, e.g. the cassette having a rigid base portion with preformed channels and being covered with a foil
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    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
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    • 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
    • A61M1/3622—Extra-corporeal blood circuits with a cassette forming partially or totally the blood circuit
    • A61M1/36226—Constructional details of cassettes, e.g. specific details on material or shape
    • A61M1/362266—Means for adding solutions or substances to the blood
    • A—HUMAN NECESSITIES
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    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10—Location thereof with respect to the patient's body
    • A61M60/104—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body
    • A61M60/109—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/30—Medical purposes thereof other than the enhancement of the cardiac output
    • A61M60/36—Medical purposes thereof other than the enhancement of the cardiac output for specific blood treatment; for specific therapy
    • A—HUMAN NECESSITIES
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    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/40—Details relating to driving
    • A61M60/424—Details relating to driving for positive displacement blood pumps
    • A61M60/427—Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being hydraulic or pneumatic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
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    • A61M60/508—Electronic control means, e.g. for feedback regulation
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    • A61M60/546—Regulation using real-time blood pump operational parameter data, e.g. motor current of blood flow, e.g. by adapting rotor speed
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    • A61M60/80—Constructional details other than related to driving
    • A61M60/845—Constructional details other than related to driving of extracorporeal blood pumps
    • A61M60/847—Constructional details other than related to driving of extracorporeal blood pumps arranged in a cassette
    • 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
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F04B13/02—Pumps specially modified to deliver fixed or variable measured quantities of two or more fluids at the same time
    • 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
    • F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
    • F04B43/026—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
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    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
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    • A61M2205/00—General characteristics of the apparatus
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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Cardiology (AREA)
  • Mechanical Engineering (AREA)
  • Urology & Nephrology (AREA)
  • Emergency Medicine (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • External Artificial Organs (AREA)

Abstract

Patente de Invenção: <B>"SISTEMAS E MéTODOS DE BOMBEAMENTO DE SANGUE ATUADOS POR PRESSãO DE FLUIDO COM CONDIçõES DE INFLUXO CONTìNUAS E DE EFLUXO PULSANTES"<D>. Sistemas de processamento de sangue (10) e métodos relacionados colocam primeira (PP1) e segunda (PP2) estações de bombeamento atuadas por fluido em comunicação em linha entre uma fonte e um destino. Os sistemas e métodos aplicam recalques de bombeamento de pressão de fluido às primeira e segunda estações de bombeamento, para transportar fluido da fonte para o destino. Os sistemas e métodos alternam entre um primeiro modo de escoamento e um segundo modo de escoamento. O primeiro escoamento retira um volume de fluido para a primeira estação de bombeamento da fonte, e expele um volume de fluido da segunda estação de bombeamento para o destino. No segundo modo de escoamento, os recalques de bombeamento retiram um volume de fluido para a segunda estação de bombeamento da fonte, e expelem um volume de fluido da primeira estação de bombeamento para o destino. Os recalques de bombeamento são sincronizados de modo que o escoamento da fonte é essencialmente contínuo, enquanto que o escoamento de fluido para o destino é pulsante.
BR0007066-1A 1999-09-03 2000-08-29 Sistemas e métodos de bombeamento de sangue atuados por pressão de fluido com condições de influxo contìnuas e de efluxo pulsantes BR0007066A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/390,265 US6723062B1 (en) 1999-09-03 1999-09-03 Fluid pressure actuated blood pumping systems and methods with continuous inflow and pulsatile outflow conditions
PCT/US2000/023675 WO2001017604A1 (en) 1999-09-03 2000-08-29 Fluid pressure actuated blood pumping systems and methods with continuous inflow and pulsatile outflow conditions
US10/828,359 US20060178611A9 (en) 1999-09-03 2004-04-20 Fluid pressure actuated blood pumping systems and methods with continuous inflow and pulsatile outflow conditions

Publications (1)

Publication Number Publication Date
BR0007066A true BR0007066A (pt) 2001-07-31

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Application Number Title Priority Date Filing Date
BR0007066-1A BR0007066A (pt) 1999-09-03 2000-08-29 Sistemas e métodos de bombeamento de sangue atuados por pressão de fluido com condições de influxo contìnuas e de efluxo pulsantes

Country Status (9)

Country Link
US (2) US6723062B1 (pt)
EP (1) EP1135187B1 (pt)
JP (1) JP4672943B2 (pt)
CN (1) CN100379472C (pt)
AU (1) AU775593B2 (pt)
BR (1) BR0007066A (pt)
CA (1) CA2347626C (pt)
NO (1) NO20012172L (pt)
WO (1) WO2001017604A1 (pt)

Families Citing this family (85)

* Cited by examiner, † Cited by third party
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CA2347626A1 (en) 2001-03-15
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US6723062B1 (en) 2004-04-20
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US20050234384A1 (en) 2005-10-20
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