FR2414351A1 - Controlling ultrafiltration rate in haemodialysis - by controllable synchronous inlet and outlet pumps circulating dialysate through dialyser with pumped tapping off of ultrafiltrate - Google Patents

Controlling ultrafiltration rate in haemodialysis - by controllable synchronous inlet and outlet pumps circulating dialysate through dialyser with pumped tapping off of ultrafiltrate

Info

Publication number
FR2414351A1
FR2414351A1 FR7802440A FR7802440A FR2414351A1 FR 2414351 A1 FR2414351 A1 FR 2414351A1 FR 7802440 A FR7802440 A FR 7802440A FR 7802440 A FR7802440 A FR 7802440A FR 2414351 A1 FR2414351 A1 FR 2414351A1
Authority
FR
France
Prior art keywords
dialyser
dialysate
tapping
outlet
pumped
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.)
Withdrawn
Application number
FR7802440A
Other languages
French (fr)
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.)
BRET CLAUDE
Original Assignee
BRET CLAUDE
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 BRET CLAUDE filed Critical BRET CLAUDE
Priority to FR7802440A priority Critical patent/FR2414351A1/en
Publication of FR2414351A1 publication Critical patent/FR2414351A1/en
Withdrawn legal-status Critical Current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
    • 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
    • A61M1/1694—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes with recirculating dialysing liquid
    • A61M1/1696—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes with recirculating dialysing liquid with dialysate regeneration
    • 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
    • A61M1/1621—Constructional aspects thereof
    • A61M1/1635—Constructional aspects thereof with volume chamber balancing devices between used and fresh dialysis fluid
    • A61M1/1641—Constructional aspects thereof with volume chamber balancing devices between used and fresh dialysis fluid linked by pistons
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/24—Dialysis ; Membrane extraction
    • B01D61/32—Controlling or regulating

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Urology & Nephrology (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Emergency Medicine (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The inlet and outlet pumps operate for continuous renewal of the dialysis bath, feeding the fresh dialysate into the dialyser from the dialysate generator and drawing spent dialysate from the other side of the dialyser. The pump can be of the piston type or the occlusive peristaltic type, one set of rollers pref. acting on flexible tubing connected to both sides of the dialyser. The negative pressure producing the ultrafiltration is generated by a pump of the occlusive type, pref. peristaltic, connected between the outlet of the dialyser and the outlet pump. The inlet and outlet pumps are pref. continuously variable in speed from rest to maximum. Although the principal use of the system is in medical haemodialysis, it can also be used in precision mixing of two liqs., the haemodialyser being replaced by a tapping into the circuit through which the liq. to be mixed with that in the circuit is introduced. The rate of introduction of the second liq. is thus controlled by the rate at which the pumped tapping off is operated. The system permits precise control of the ultrafiltration rate, whether at high dialysate flow rates or with no dialysate flow.
FR7802440A 1978-01-16 1978-01-16 Controlling ultrafiltration rate in haemodialysis - by controllable synchronous inlet and outlet pumps circulating dialysate through dialyser with pumped tapping off of ultrafiltrate Withdrawn FR2414351A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7802440A FR2414351A1 (en) 1978-01-16 1978-01-16 Controlling ultrafiltration rate in haemodialysis - by controllable synchronous inlet and outlet pumps circulating dialysate through dialyser with pumped tapping off of ultrafiltrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7802440A FR2414351A1 (en) 1978-01-16 1978-01-16 Controlling ultrafiltration rate in haemodialysis - by controllable synchronous inlet and outlet pumps circulating dialysate through dialyser with pumped tapping off of ultrafiltrate

Publications (1)

Publication Number Publication Date
FR2414351A1 true FR2414351A1 (en) 1979-08-10

Family

ID=9203926

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7802440A Withdrawn FR2414351A1 (en) 1978-01-16 1978-01-16 Controlling ultrafiltration rate in haemodialysis - by controllable synchronous inlet and outlet pumps circulating dialysate through dialyser with pumped tapping off of ultrafiltrate

Country Status (1)

Country Link
FR (1) FR2414351A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6331252B1 (en) 1998-07-31 2001-12-18 Baxter International Inc. Methods for priming a blood compartment of a hemodialyzer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE834361A (en) * 1975-10-10 1976-02-02 DEVICE FOR ACCURATELY MEASURING THE ULTRAFILTRATION OUTPUT OF A HAEMODIALYZER
NL7701451A (en) * 1977-02-11 1977-05-31 Johannes August Flendrig Circulating dialyser fluid through an artificial kidney - via directional valve diverting flow from pumps under pilot control
FR2345165A1 (en) * 1976-03-25 1977-10-21 Rhone Poulenc Ind Artificial kidney with volumetric control of ultrafiltration - incorporates closed loop circulation and periodic renewal of dialysing liq.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE834361A (en) * 1975-10-10 1976-02-02 DEVICE FOR ACCURATELY MEASURING THE ULTRAFILTRATION OUTPUT OF A HAEMODIALYZER
FR2345165A1 (en) * 1976-03-25 1977-10-21 Rhone Poulenc Ind Artificial kidney with volumetric control of ultrafiltration - incorporates closed loop circulation and periodic renewal of dialysing liq.
NL7701451A (en) * 1977-02-11 1977-05-31 Johannes August Flendrig Circulating dialyser fluid through an artificial kidney - via directional valve diverting flow from pumps under pilot control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6331252B1 (en) 1998-07-31 2001-12-18 Baxter International Inc. Methods for priming a blood compartment of a hemodialyzer

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Legal Events

Date Code Title Description
ST Notification of lapse
AR Application made for restoration
BR Restoration of rights
ST Notification of lapse