BR9912668A - Métodos e aparelhos para realizar ultrafiltração controlada durante hemodiálise - Google Patents

Métodos e aparelhos para realizar ultrafiltração controlada durante hemodiálise

Info

Publication number
BR9912668A
BR9912668A BR9912668-0A BR9912668A BR9912668A BR 9912668 A BR9912668 A BR 9912668A BR 9912668 A BR9912668 A BR 9912668A BR 9912668 A BR9912668 A BR 9912668A
Authority
BR
Brazil
Prior art keywords
dialysate
compartment
liquid
methods
devices
Prior art date
Application number
BR9912668-0A
Other languages
English (en)
Inventor
Waleed Mutasem El Sayyid
Cameron Scott Casterline
Original Assignee
Althin Medical 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 Althin Medical Inc filed Critical Althin Medical Inc
Publication of BR9912668A publication Critical patent/BR9912668A/pt

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
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
    • 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
    • A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
    • A61M1/1601—Control or regulation
    • 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
    • A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
    • A61M1/1621—Constructional aspects thereof
    • A61M1/1647—Constructional aspects thereof with flow rate measurement of the dialysis fluid, upstream and downstream of the dialyser
    • 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
    • A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
    • A61M1/1621—Constructional aspects thereof
    • A61M1/165—Constructional aspects thereof with a dialyser bypass on the dialysis fluid line
    • 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
    • A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
    • A61M1/3403—Regulation parameters
    • 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
    • A61M1/34—Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
    • A61M1/342—Adding solutions to the blood, e.g. substitution solutions
    • A61M1/3424—Substitution fluid path
    • A61M1/3427—Substitution fluid path back through the membrane, e.g. by inverted trans-membrane pressure [TMP]
    • 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
    • A61M1/3643—Priming, rinsing before or after use
    • A61M1/3644—Mode of operation
    • 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
    • A61M1/3643—Priming, rinsing before or after use
    • A61M1/3644—Mode of operation
    • A61M1/365—Mode of operation through membranes, e.g. by inverted trans-membrane pressure [TMP]
    • 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
    • A61M1/3643—Priming, rinsing before or after use
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/929—Hemoultrafiltrate volume measurement or control processes

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Urology & Nephrology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Emergency Medicine (AREA)
  • Cardiology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • External Artificial Organs (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Patente de Invenção:<B>"MéTODOS E APARELHO PARA REALIZAR ULTRAFILTRAçãO CONTROLADA DURANTE HEMOIDIáLISE"<B>. A presente invenção refere-ses a uma modalidade preferida de um aparelho descrito que compreende uma "alça UF" hidráulica que compreende primeira (14) e segunda (34) bombas de deslocamento positivas que bombeiam o dialisado ou um líquido análogo para e a partir de, respectivamente, o compartimento de dialisado do hemodializador (12) localizado dentro da alça UF. Entre cada bomba (14, 34), e o orifício respectivo do hemodializador (12) encontra-se um respectivo medidor de fluxo (20, 32) que determina o coeficiente de fluxo da bomba respectiva (14, 34). O hemodializador (12) é também conectado ao conduto (46a, 46v) que conduz o líquido fisiológico (por exemplo, sangue) extracorporeamente a partir de uma fonte (por exemplo, paciente) através do compartimento de sangue do hemodializador (12) e de volta para a fonte. Dependendo dos coeficientes de bombeamento relativos das primeira (14) e segunda (34) bombas, uma condição de ultrafiltração (UF) pode ser alcançada produzindo um fluxo líquido de fluido ou a partir do dialisado para o líquido fisiológico ou a partir do líquido fisiológico para o dialisado. Uma condição de "UF invertida" caraterizada por um fluxo de líquido a partir do dialisado para o líquido fisiológico é especialmente útil para a iniciação do compartimento de sangue de hemodializador (12). Os medidores de fluxo (20, 32) realizam, a medição de líquido e assim permitem a ultrafiltragem com alta precisão sem a necessidade de uma bomba de medição UF separada na alça UF.
BR9912668-0A 1998-07-31 1999-08-02 Métodos e aparelhos para realizar ultrafiltração controlada durante hemodiálise BR9912668A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/126,761 US6331252B1 (en) 1998-07-31 1998-07-31 Methods for priming a blood compartment of a hemodialyzer
PCT/US1999/017506 WO2000006217A1 (en) 1998-07-31 1999-08-02 Methods and apparatus for performing controlled ultrafiltration during hemodialysis

Publications (1)

Publication Number Publication Date
BR9912668A true BR9912668A (pt) 2001-05-02

Family

ID=22426527

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9912668-0A BR9912668A (pt) 1998-07-31 1999-08-02 Métodos e aparelhos para realizar ultrafiltração controlada durante hemodiálise

Country Status (14)

Country Link
US (1) US6331252B1 (pt)
EP (1) EP1100559B1 (pt)
JP (2) JP4082447B2 (pt)
KR (1) KR100636045B1 (pt)
CN (1) CN1188179C (pt)
AT (1) ATE352332T1 (pt)
AU (1) AU750282B2 (pt)
BR (1) BR9912668A (pt)
CA (1) CA2336478A1 (pt)
DE (1) DE69934988T2 (pt)
ES (1) ES2281184T3 (pt)
ID (1) ID28073A (pt)
TW (1) TW418095B (pt)
WO (1) WO2000006217A1 (pt)

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US6331252B1 (en) 2001-12-18
CN1188179C (zh) 2005-02-09
CN1311700A (zh) 2001-09-05
ATE352332T1 (de) 2007-02-15
AU750282B2 (en) 2002-07-11
KR100636045B1 (ko) 2006-10-19
ES2281184T3 (es) 2007-09-16
TW418095B (en) 2001-01-11
KR20010072100A (ko) 2001-07-31
ID28073A (id) 2001-05-03
WO2000006217A1 (en) 2000-02-10
EP1100559B1 (en) 2007-01-24
JP2002521141A (ja) 2002-07-16
DE69934988D1 (de) 2007-03-15
JP2008073563A (ja) 2008-04-03
CA2336478A1 (en) 2000-02-10
DE69934988T2 (de) 2007-10-25
EP1100559A1 (en) 2001-05-23
AU5251199A (en) 2000-02-21
JP4082447B2 (ja) 2008-04-30

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