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Method and device for producing a medical solution

A kind of equipment and solution technology, applied in the direction of ratio control, drug equipment, other medical equipment, etc., can solve problems such as complex structures

Active Publication Date: 2018-01-02
FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of these known processing methods is that a sensor unit is required for each component
If necessary, a further sensor unit for measuring the conductivity of the mixed solution is used as an additional protection system, resulting in a relatively complex construction overall

Method used

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  • Method and device for producing a medical solution
  • Method and device for producing a medical solution
  • Method and device for producing a medical solution

Examples

Experimental program
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Embodiment Construction

[0042] from figure 1A schematic time curve of the electrical conductivity sum 100 can be seen in , that is to say, the electrical conductivity versus time curve of a mixed solution composed of components A and B. In addition, time curves of the conductivities of components A and B are shown (LF (conductivity) component A, LF component B) such that the value of the conductivity of component B (shown by a dashed line) is the same as that of component A The values ​​of the conductivities are added so that the sum of the conductivities constant over time 100 is obtained.

[0043] The described embodiments relate to the measurement of electrical conductivity and are also contemplated for measuring any other parameter. Accordingly, the present invention also includes the measurement of any other conductivity or concentration-related parameter of the mixed solution, allowing the concentration of components A and / or B to be deduced or the substances they contain.

[0044] from figu...

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PUM

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Abstract

The invention relates to a method for producing a medical solution from at least one first and at least one second liquid component, wherein the first component and the second component are conveyed by a respective conveying means in order to obtain a mixed solution. The conveying means are operated in such a way that a modulation of the concentration of the first and the second component occurs and that the conductivity, or a parameter correlated with the conductivity, of the mixed solution is measured at a measurement point. The modulation of the concentrations in a desired state occurs in such a way that no modulation or a specific modulation of the measured conductivity, or of the parameter correlated with the conductivity, occurs. The invention further relates to a device for producing a medical solution and to a blood treatment appliance having such a device.

Description

technical field [0001] The present invention relates to a method and a device for preparing a medical solution from at least one liquid first component and at least one liquid second component, wherein the first component and the second component are each by means of at least one transport mechanism to be transported in order to obtain at least one mixed solution. Background technique [0002] It is known from the prior art to formulate dialysis solutions from two components, one of which is an acidic concentrate and the other an alkaline concentrate. The concentrations of these two components must be monitored. In the known apparatus this is done by providing, for each of the components, a conductivity sensor in conjunction with the temperature measurement to take into account the temperature dependence of the conductivity. [0003] The delivery of the components, that is to say the delivery of the concentrate, takes place by means of a concentrate pump. If the determine...

Claims

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Application Information

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IPC IPC(8): A61M1/16A61M1/28G05D11/13
CPCA61M1/287A61M2205/3317A61M2205/702A61M1/1607G05D11/138A61M1/1664A61M1/1656
Inventor 帕斯卡尔·克佩尔施密特
Owner FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH