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Device and method for regulating a treatment device

A throttling valve and ultrafiltration technology, which is applied in the direction of pharmaceutical equipment, other medical equipment, suction equipment, etc., can solve the problems of balance chamber structure cost and high manufacturing tolerance

Active Publication Date: 2015-09-30
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Balancing chambers are structurally complex and place high demands on manufacturing tolerances

Method used

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  • Device and method for regulating a treatment device
  • Device and method for regulating a treatment device
  • Device and method for regulating a treatment device

Examples

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Embodiment Construction

[0030] Consistent with the teachings of the present invention, in figure 1 A dialysis device 1 with means for regulating ultrafiltration is schematically shown in . Blood to be treated is withdrawn from the patient via inlet 114 and is passed through the blood chamber of dialyzer 113 in extracorporeal blood circuit 112 by means of blood pump 115 and returned to the patient via inlet 114 . An inlet 114 adapted for blood withdrawal and return connects the blood circulation 112 with the patient's blood vessels. The inlet 114 can contain separate outflow and inflow ('twin-needle' approach) for withdrawal of blood and for return of blood, or the inflow and outflow can be implemented as one unit ('single-needle' approach).

[0031]In the dialyzer 113 , a semipermeable membrane 111 separates the dialysate fluid chamber 108 from the blood chamber 110 . The exchange of fluid and substances from the blood chamber 110 into the dialysis fluid chamber 108 takes place via a semi-permeable...

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Abstract

A method and a device are disclosed for regulating an ultrafiltration in a dialysis treatment, in which the blood to be ultrafiltered in an extracorporeal blood circulation (109) flows through a blood chamber (110) of a dialyzer (113), which is subdivided by a semipermeable membrane (111) into a blood chamber (110) and a dialysis fluid chamber (108), and dialysis fluid in a dialysis fluid circulation (109) flows through the dialysis fluid chamber (108) of the dialyzer (113),. The device has a blood pump (115) for controlling a blood flow in the extracorporeal blood circulation (112), a dialysis fluid pump (107) for controlling a dialysis fluid flow in the dialysis fluid circulation (109) upstream or downstream from the dialyzer (113), for controlling the dialysis fluid flow upstream of downstream from the dialyzer, a balancing device (104) for setting up a fluid balance in the dialysis fluid circulation between an inflow (106) and an outflow (105) of the dialysis fluid chamber (113) as a measure of the ultrafiltration, as well as a regulating unit (101) for regulating the blood pump (115), the throttle (117) and / or the dialysis fluid pump (107). The pumps or the throttles (117) are regulated so that a predetermined ultrafiltration is achieved.

Description

technical field [0001] The invention relates to a method and a device for regulating a treatment device, in particular for regulating ultrafiltration during dialysis treatment. Background technique [0002] Dialysis is a procedure used to clear the blood of patients with acute or chronic renal insufficiency. In principle, a distinction is made here between methods with extracorporeal blood circulation, such as hemodialysis, hemofiltration or hemodiafiltration Peritoneal dialysis with no extracorporeal blood circulation. [0003] During hemodialysis, the blood in the extracorporeal circuit is guided through the blood chamber of the dialyzer, which is separated from the dialysate fluid chamber by a semipermeable membrane. The dialysis fluid chamber is flowed through by dialysis fluid containing a specific concentration of blood electrolytes. In this case, the substance concentration of the blood electrolytes in the dialysis fluid corresponds to the concentration in the blo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/16A61M1/34
CPCA61M1/341A61M1/3427A61M1/1647A61M1/16A61M1/3663A61M1/34A61M2205/3334A61M2205/3365A61M1/1605A61M1/1613A61M1/3607A61M1/3413A61M2205/3331
Inventor A.海德D.尼科利克A.彼得斯C.维克托尔
Owner FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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