Device and method for monitoring a mixing process
AssigneeVivonic GmbH
InventorsPatrick Bessler, Andreas Hemm, Stefan Eberlein
Life of this patent
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Abstract
The present invention relates to a device for preparing a medical solution by mixing at least one liquid and at least one concentrate raw material, comprising a mixing container into which the at least one liquid and the at least one concentrate raw material can be fed, a control device, and a measuring device for measuring at least one parameter, preferably a density, of a mixture produced by means of the device during the mixing operation, and a corresponding method.
Claims15
A device for preparing a dialysate concentrate by mixing at least one liquid and at least one concentrate raw material, by means of or in a mixing container into which the at least one liquid and at least the one concentrate raw material are fed, a control device, and a measuring device for measuring a parameter of a mixture produced by means of the device during a mixing operation, wherein the measuring device is configured to carry out measurements continuously and/or online during the mixing operation carried out by means of the device, wherein the control device is configured to
- operate the device for a first predetermined time span for carrying out the mixing operation,
- compare parameter values measured by the measuring device with a setpoint value and, when the setpoint value or a tolerance range surrounding it is reached, to terminate the mixing operation carried out by means of the device and/or to issue an output to a user, and
- when the setpoint value or a tolerance range surrounding it is not reached by the first predetermined time span, prolong the mixing operation once or multiple times by a second predetermined time span and/or to issue an output to a user, with which the user is requested to approve or instruct the prolongation of the mixing operation and/or to approve the mixture.
A method for monitoring a mixing operation for preparing a dialysate concentrate by mixing at least one liquid and at least one concentrate raw material, wherein the mixing operation is carried out by means of a device, the method comprising steps of:
- measuring a parameter of a mixture produced by means of a measuring device associated with the device carrying out the mixing operation, wherein the device is operated for a first predetermined time span for carrying out the mixing operation;
- comparing parameter values measured by the measuring device with a setpoint value and, when the setpoint value or a tolerance range surrounding it is reached, terminating a mixing operation carried out by means of the device and/or issuing an output to a user;
- and
- prolonging the mixing operation once or multiple times by a second predetermined time span and/or issuing an output to a user, with which the user is requested to approve or instruct the prolongation of the mixing operation and/or to approve the mixture when the setpoint value or a tolerance range surrounding it is not reached by the first predetermined time span.
Dependencies are inferred from the claim text.