242 results about "Dialysis device" patented technology

The invention relates to medical instruments, in particular to a peritoneal dialysis device which comprises a dialysate management unit, a sensor unit, a processor, a storage device, a peritoneal transfer model, an intelligent alarm management unit and a communication unit, and the dialysate management unit is configured to be used for perfusion of dialysate into the abdominal cavity of a patient and drainage of the dialysate from the abdominal cavity of the patient; the sensor unit is configured to be used for monitoring physiological parameters of a patient and dialysate characteristic parameters and receiving symptom information and comfort level scores input by the patient, the storage stores instructions executed by the processor, and the instructions enable the processor to be capable of dynamically adjusting treatment parameters of the dialysate management unit in real time in combination with a pre-trained peritoneal transfer model. The perfusion speed, the drainage speed or the dialysate temperature of the dialysate management unit are dynamically adjusted, so that the comfort level score of the patient is maintained to be above a preset threshold value, treatment parameters can be dynamically adjusted in real time to optimize the treatment effect, peritonitis risks are early warned, and the comfort level of the patient is improved.

The invention discloses a method for recovering mixed acid waste liquid containing hydrofluoric acid, which comprises the following steps: reacting raw materials with sodium salt or potassium salt, and filtering to obtain filtrate; the raw material is mixed acid waste liquid containing hydrofluoric acid; feeding the filtrate into a diffusion dialysis device for treatment, wherein the diffusion dialysis device comprises a homogeneous anion exchange membrane; the recovery liquid obtained through treatment of the diffusion dialysis device is fed into a membrane separation device, the membrane material of the membrane separation device is an acid-resistant metal ion removal membrane, and the recovered mixed acid is obtained on the permeation side of the membrane separation device. According to the method, impurities and metal ions in the low-concentration waste acid solution can be effectively removed, the product reaches the electronic-grade recycling standard, the resource recycling rate is increased, the technological process is simple, energy consumption is low, and the method is suitable for industrial application and popularization.

Systems and methods of the present disclosure enable fault risk detection in renal care systems and / or devices, by receiving, from an image sensor, an image of a component of the renal care system / device and using a fault risk detection machine learning model to output a detected fault risk in the component based at least in part on trained machine learning model parameters configured, through training, to classify the detected fault risk as matching to one or more known fault risks. An alert is generated to an operator or technician of the renal care system / device, including an indication of the detected fault risk.

The invention relates to an electrodialysis device for the desalination of water for oil and gas applications comprising: a membrane stack comprising alternating cation- and anion-exchange membranes (2.1, 2.3) and a plurality of spacers (2.2, 2.4), each spacer being arranged between two successive membranes; wherein at least one of the spacers (2.2, 2.4) comprises a recessed area (3.2) and a non-recessed area (3.3), a central opening (3.1) within the recessed area (3.2); the spacer (2.2, 2.4) is provided with at least four orifices (3.4, 3.5) within the non-recessed area (3.3); and with respective channels (3.6) which connect at least two of the orifices (3.4) with the central opening (3.1); and one membrane (2.1, 2.3) is accommodated in the recessed area (3.2).The invention also relates to a water desalination process using the electrodialysis device mentioned above.

The hemodialysis device for the nephrology department relates to the technical field of medical instruments and comprises a body mechanism, the body mechanism comprises a dialyzer body, a dialyzer is fixedly installed on the left side face of the dialyzer body, and the outer surface of the dialyzer is fixedly communicated with a blood inlet pipe, a blood outlet pipe, a liquid inlet pipe and a liquid outlet pipe. A treatment mechanism is arranged on the left side of the dialyzer main body; the processing mechanism comprises an expansion unit, and the expansion unit is located on the left side of the dialyzer body and used for expanding the inner diameter of the blocked pipeline position; the treatment mechanism further comprises a dredging unit, the dredging unit is located on the left side of the dialyzer body, the expansion unit is used in cooperation with the dredging unit, and the dredging unit is used for dredging thrombus and other substances blocking a pipeline. Therefore, thrombus and other substances blocking the blood inlet tube can smoothly pass through, and blood dialysis of a patient is prevented from being affected by blocking of the blood inlet tube.

The invention relates to the technical field of dialysate preparation, in particular to a dialysate supply device for hemodialysis, which comprises a supply device, the supply device comprises a liquid storage tank for storing mixed dialysate, a dialysis device is arranged on one side of the liquid storage tank, the mixed dialysate in the liquid storage tank is supplied into the dialysis device, and the dialysis device is arranged on the other side of the liquid storage tank. The device further comprises a dialysate preparation box. According to the dialysis dry powder bag preparation device, through the arrangement of the storage box, the sliding plate, the blade and the driving assembly, a medical worker puts a bag stored with dialysis dry powder into the storage box, then the storage box is pushed into the preparation cavity, and then the driving assembly drives the blade to move to scratch the dialysis dry powder bag in a sealed environment; the dialysis dry powder bag is provided with the through holes, dirt and damp caused by contact of the dialysis dry powder and outside air are reduced, the blades slide in the through holes in a reciprocating mode, the dry powder bag can be scratched, meanwhile, the caked dry powder can be preliminarily crushed, and the arranged grinding assembly is matched, so that the dry powder can be further ground.

The invention discloses multi-layer filtration blood purification dialysis equipment, and relates to the technical field related to hemodialysis, through a hollow fiber membrane, multi-layer filtration and pressure regulation collaboration are integrated, and a nanofiber membrane, anion resin, activated carbon and a molecular sieve adsorption layer of which the pore diameters are gradually decreased are integrated in each filter tube; the removal rates of urea, creatinine and phosphorus respectively reach 92%, 88% and 78% and are improved by 25%-40% compared with single-stage filtration, the repeated utilization rate of dialysate is improved to 75% or above, the consumption of single treatment is reduced to 25% of that of conventional equipment, meanwhile, through arrangement of a pressure valve, the waste liquid discharge amount is accurately matched with the toxin accumulation rate, and the treatment effect is improved. The concentration fluctuation of dialysate metabolites is controlled within + / -10%, and the KT / V value is stabilized to be 1.3 or above.

The invention relates to the technical field of medical instruments, in particular to a hemodialysis device for the nephrology department and accessories thereof.The hemodialysis device for the nephrology department comprises a first shell and a second shell, the opposite end faces of the first shell and the second shell are each provided with a jacking ring, and each jacking ring is provided with a wavy end face; the first shell and the second shell are jointly sleeved with a connecting ring, a first sealing gasket and a second sealing gasket are coaxially and rotationally arranged on the inner wall of the connecting ring, the first sealing gasket and the second sealing gasket are located between the first shell and the second shell, and a first tightening ring is rotationally arranged between the first shell and the connecting ring. A second tightening ring is rotatably arranged between the second shell and the connecting ring, rotation of the first tightening ring can push the first shell, so that a jacking ring of the first shell extrudes the first sealing gasket, rotation of the second tightening ring can push the second shell, so that a jacking ring of the second shell upwards extrudes the second sealing gasket, and the second sealing gasket is tightly pressed; and therefore, the first sealing gasket and the second sealing gasket form wave-shaped sealing surfaces.

The present invention addresses the problem of providing a woven fabric advantageous in terms of environmental load and production, an ion exchange membrane using the woven fabric, a method for producing the same, an electrodialysis device, a diffusion dialysis device, and a water electrolysis device.　The present invention is a woven fabric in which each of a warp and a weft includes a flat yarn including a chlorine-based resin, and an ion exchange membrane that uses the woven fabric, an electrodialysis device, a diffusion dialysis device, a water electrolysis device, and a method for producing the ion exchange membrane.

According to the flow channel box (13) of the dialysis equipment and the portable dialysis equipment, a plurality of fluid channels (1313) for controlling fluid to flow forwards or backwards through air pressure are arranged in a box body of the flow channel box (13); a plurality of independent first pneumatic interfaces (1322) which are respectively butted with a plurality of second pneumatic interfaces (103) of the dialysis equipment are arranged on a box body of the flow channel box (13), so that a pneumatic system in the dialysis equipment can control fluid in a fluid channel (1313) to flow forwards or backwards by utilizing air pressure after the flow channel box (13) is butted with the second pneumatic interfaces (103) by a user; the operation complexity and the operation threshold are greatly reduced, the integration level of dialysis equipment is higher, the size is smaller, and dialysis treatment in the scenes such as first aid, travel, rescue and relief work and home is particularly facilitated.

The utility model discloses a water distribution runner for electrodialysis, which is applied between two ion exchange membranes and comprises a runner main body, a plurality of first fluid channels are arranged on one side surface of the runner main body, the first fluid channels are arranged at intervals, and a runner supporting layer is arranged between every two adjacent first fluid channels; a plurality of first fluid channels are formed in one side face of the flow channel body, a plurality of second fluid channels are formed in the other side face of the flow channel body, the second fluid channels are arranged at intervals, and a flow channel supporting layer is arranged between every two adjacent second fluid channels. The phenomenon of local collapse or rupture of the ion exchange membrane can be prevented, so that the feed liquid is uniformly distributed in the runner main body, no dead angle is generated, and the situation that the ion exchange membrane and the partition plate are damaged due to local temperature rise of a membrane stack can be prevented, and the first fluid channel and the second fluid channel are fully sealed with the ion exchange membrane; and mutual permeation of feed liquid in the dialysis device is prevented.

A reverse osmosis (RO) system is described that is connected to a dialysis machine and is capable of using heated purified water to clean and disinfect an external connection section or portion disposed between the RO systems and the dialysis unit (or any other external heat tolerant device) without forming a closed loop system between both systems before and during a heat forward process. This can be accomplished without the need for direct / indirect or wired / wireless communication with the dialysis unit or the need to introduce a chemical cleaner or process that would require further rinsing after chemical disinfection.

The application discloses a kind of multilayer dialysis device and use method for separating landfill leachate, belong to landfill leachate processing technical field, multilayer dialysis device includes magnetic stirring module and multilayer dialysis module;Magnetic stirring module includes magnetic stirring rotor and the magnetic field control device of driving magnetic stirring rotor rotation;Multilayer dialysis module includes the experimental cylinder being set on stirring table, and multiple different diameters and coaxially arranged dialysis cylinders are arranged in experimental cylinder, and magnetic stirring rotor is arranged at the bottom of the smallest diameter dialysis cylinder;By setting multiple dialysis cylinders with different molecular weight cut-off in multilayer dialysis module, and setting magnetic stirring rotor at the bottom of the smallest diameter dialysis cylinder, not only can simultaneously process the dialysis work of multiple molecular weight organic matter and ionic landfill leachate, but also significantly improve the separation efficiency of multiple molecular weight organic matter and ions with magnetic stirring rotor, compared with single membrane technology, more separation tasks can be completed in shorter time.

According to the novel dialysis device applied to the field of dialysis equipment, through cooperation of a vertical sliding block and a horizontal sliding block, when the novel dialysis device is used, a two-way connecting piece with a connecting hose is clamped into clamping forks in advance, the two sets of clamping forks are made to be close to each other through the pulling force of a tension spring on the vertical sliding block, and the two sets of clamping forks are clamped into the two sets of clamping forks; when the service life of the adsorption tank is prolonged and the adsorption tank needs to be replaced, the horizontal sliding block is pushed by external force to move horizontally, the driving block is clamped between the two groups of execution blocks, and the two groups of execution blocks are clamped by the two groups of execution blocks in the displacement process of the horizontal sliding block through the matching of a guide-in groove and a slope opening. The two sets of vertical sliding blocks are driven to overcome the tension of the tension spring to move away from each other, then the two-way connecting piece clamped in the clamping fork is separated from the adsorption tank, the purpose of rapidly replacing the adsorption tank is achieved, the replacement efficiency is effectively improved, in the replacement process, the personnel contact rate is reduced, and the sterile safety of dialysis is effectively guaranteed.

The utility model discloses a shell structure of a hemodialysis device detector calibration device, which comprises a shell assembly and a bottom drawing assembly, the shell assembly comprises a shell and a sliding cover, the sliding cover is arranged at the top of the shell, the bottom drawing assembly is arranged at the bottom of the shell, support legs are arranged on the periphery of the bottom of the shell, and the thickness of the bottom drawing assembly is smaller than the length of the support legs; a plurality of air inlet channels are formed in the edge position of the lower portion of the shell, the air inlet channels are arranged in parallel at intervals, three ventilation holes are formed in the back of the shell, and exhaust fans are arranged at the positions, located at the ventilation holes, of the interior of the shell; the bottom pulling assembly is separated from the ground through the supporting feet, it is guaranteed that a bottom plate of the bottom pulling assembly can be pulled smoothly, a placing platform is provided for a hemodialysis device or a detector or a small sensor to be detected, meanwhile, multiple air inlet channels are formed in the front face of the shell, three exhaust fans are arranged on the back face of the shell, the exhaust fans are matched with the ventilation holes, and air channels are formed in the shell. And heat generated by each part in the shell is discharged, so that the calibration device is prevented from being damaged by high temperature.

The utility model discloses an auxiliary device suitable for low-temperature circulation dynamic dialysis, and relates to the technical field of dialysis equipment, the auxiliary device comprises a stirring shaft, a plurality of supporting rod groups are arranged on the stirring shaft, each supporting rod group comprises a plurality of supporting rods, the supporting rods are arranged on the peripheral side face of the stirring shaft in an array mode, and the supporting rods are rotatably connected with the stirring shaft; and the plurality of hollow cages are arranged on the supporting rod in an array manner. According to the auxiliary device suitable for low-temperature circulation dynamic dialysis, the technical problems that according to an existing dialysis device, multiple samples are subjected to partition dialysis at the same time, a large number of samples are likely to be mixed and cannot be distinguished are solved, different dialysis bags are placed in the corresponding hollow cages, the multiple samples can be independently partitioned and subjected to dynamic dialysis at the same time, and the dialysis efficiency is improved. The risk of cross contamination caused by sample mixing and sample liquid leakage is effectively avoided, the movement range of the dialysis bag is limited through the hollowed-out cage, the dialysis bag is prevented from cracking in the dialysis process, and it is ensured that an experiment is conducted smoothly.

The invention discloses a membrane separation material for purifying a sucralose-6-acetate alcoholysis product. The technology comprises three main parts, namely MOF (Metal Organic Framework) synthesis, membrane preparation and membrane dialysis separation. The method comprises the following steps: firstly, taking gamma-cyclodextrin and sodium hydroxide as raw materials, carrying out morphology adjustment by using hexadecyl trimethyl ammonium bromide, and synthesizing Na-gamma-CD-MOF by using a solvent method; then mixing the MOF material with N, N-dimethylacetamide and polyvinylidene fluoride in proportion to prepare a membrane casting solution, and preparing the membrane casting solution into a composite membrane material by using a phase inversion method; finally, the membrane is placed in a liquid phase dialysis device, dialysis separation is conducted on all components in the sucralose-6-acetate alcoholysis product, and efficient separation of impurities and efficient purification of the main product sucralose are achieved. The advantages of the membrane separation technology are fully utilized, conditions are mild, the device is simple, operation is convenient, and the method has good application prospects.

A blockage detection device for a fluid replacement passage in a hemodialysis device detects the presence or absence of blockage in a fluid replacement passage of the hemodialysis device. The control component executes a first action of operating a dialysate pump at a predetermined set flow rate while filling a supply chamber with dialysate and obtaining the total amount discharge time until the dialysate in the supply chamber disappears. Next, the fluid replacement pump is operated through a second action to discharge a portion of the dialysate filled in the supply chamber into the blood circuit, and then, the remaining amount discharge time is obtained through a third action until the residual dialysate remaining in the supply chamber disappears using the dialysate pump. At this time, when the remaining amount discharge time is consistent with the total amount discharge time, it can be determined through the second action that the dialysate filled in the supply chamber is not discharged into the blood circuit at all, and therefore it can be determined through the fourth action that the fluid replacement passage is blocked. The presence or absence of blockage in the fluid replacement passage can be detected without adding a special structure.

The utility model discloses a kind of gel dialysis equipment, including injection water pipeline, compressed air pipeline, liquid preparation tank, elution tank and PLC control cabinet, the utility model is set up gravity sensor and pressure sensor on liquid preparation tank and elution tank, so that gravity sensor monitors the weight in liquid preparation tank and elution tank, pressure sensor monitors the pressure in liquid preparation tank and elution tank, and the data of monitoring is transmitted to PLC control cabinet in real time, PLC control cabinet controls the opening and closing of valve on each pipeline, to realize automatic control entire dialysis process, entire dialysis process operation is convenient, can liberate labor, reduce production cost, reduce pollution rate, improve dialysis efficiency.

The utility model relates to the technical field of water treatment, in particular to a dialysis device for wastewater treatment, which comprises an assembly seat, at least one group of diffusion dialysis units, a liquid distribution plate and a temperature distribution part, the diffusion dialysis units are equidistantly arranged in the assembly seat, the liquid distribution plate is connected with the diffusion dialysis units, and the temperature distribution part is connected with the assembly seat. And the temperature distribution part is arranged on the diffusion dialysis unit. By means of the assembly composed of the assembly base, the diffusion dialysis unit, the liquid preparation plate and the temperature preparation part, treatment of waste water containing waste alkali liquid is achieved, a dialysis mechanism is provided, the diffusion rate of ions in the waste alkali liquid is increased by increasing the temperature in the diffusion dialysis unit and increasing the thermal movement speed of molecules, the ions are helped to pass through an ion exchange membrane more quickly, and the ion exchange efficiency is improved. The diffusion dialysis efficiency is improved.

The invention discloses a method for recovering mixed acid waste liquid containing hydrofluoric acid, comprising reacting a raw material with a sodium salt or a potassium salt, and then filtering to obtain a filtrate; the raw material is a mixed acid waste liquid containing hydrofluoric acid; the filtrate is sent to a diffusion dialysis device for treatment, the diffusion dialysis device includes a homogeneous anion exchange membrane; the recovered liquid obtained by the treatment of the diffusion dialysis device is sent to a membrane separation device, the membrane material of the membrane separation device is an acid-resistant metal ion removal membrane, and the recovered mixed acid is obtained on the permeation side of the membrane separation device. The invention can effectively remove impurities and metal ions in low-concentration waste acid solutions, so that the products meet the electronic grade reuse standard, improve the resource recovery rate, and have a simple process flow and low energy consumption, which is suitable for industrial promotion and application.

The utility model relates to the technical field of protein dialysis, and discloses a protein dialysis device which comprises a reaction box and a dialysis cylinder arranged in the reaction box, a heating cavity is formed in the reaction box, and an electric heating plate is fixedly installed on the inner wall of the heating cavity formed in the reaction box. The electric heating plate can be communicated with an external power supply through a wire, a stirring assembly is arranged on the reaction box, two fixing blocks are symmetrically and fixedly mounted on the inner side wall of the reaction box, springs are fixedly mounted in the fixing blocks, clamping blocks are fixedly mounted at one ends of the springs, and a connecting cylinder is fixedly mounted at the top of the dialysis cylinder. After dialysis is completed, a worker can push the push rod to move, the push rod can drive the clamping block to move, and the clamping block can extrude the spring and be separated from the clamping groove in the lifting rod, so that the worker can quickly take down the connecting cylinder and the dialysis cylinder through the lifting rod and take out protein in the dialysis cylinder.

The article is a pipe fitting for piping that supplies dialysate to a medical dialysis machine.

The invention provides a folding type emergency circulation hemodialysis device, and relates to the technical field of hemodialysis equipment, the folding type emergency circulation hemodialysis device comprises a plurality of fixed universal wheels, and the plurality of fixed universal wheels are fixedly mounted on the lower end surface of a bottom plate of the hemodialysis equipment; the folding hinged vertical plate is hinged to the upper end of the dialysis equipment bottom plate; the number of the fixed connecting supports is two, and the two fixed connecting supports are both fixedly connected to the upper end of the folding hinged vertical plate. The dialysis equipment main body is hinged to the upper end of the folding hinged vertical plate; the number of the supporting and fixing pads is two, the two supporting and fixing pads are both fixedly connected to the rear end face of the dialysis equipment body, the folding mechanism is arranged at the upper end of the dialysis equipment bottom plate, and the problems that in practical application of an existing emergency circulation hemodialysis device, due to the fact that the size of the existing emergency circulation hemodialysis device is large, the existing emergency circulation hemodialysis device is particularly inconvenient to carry and transport, and the size of the existing emergency circulation hemodialysis device is too large are solved. The service efficiency and the response speed of the equipment are seriously influenced, the working efficiency is improved, and the time required by carrying and deploying is shortened.

The utility model provides a plunger balancing device and dialysis equipment, the plunger balancing device comprises a pump body and a plunger, the pump body is provided with a cavity, the plunger is arranged in the cavity, the plunger is in sliding sealing connection with the cavity, and the plunger is used for dividing the cavity into a first cavity and a second cavity; the pump body is provided with a first liquid inlet and a first liquid outlet which are communicated with the first cavity, and a second liquid inlet and a second liquid outlet which are communicated with the second cavity; the four valve bodies are respectively arranged at the first liquid inlet, the first liquid outlet, the second liquid inlet valve and the second liquid outlet; the linear driver is connected with the plunger and used for driving the plunger to move along the cavity. According to the plunger balancing device, the plunger structure is driven to do linear reciprocating motion in a linear driving mode, and compared with a rotary driving scheme, the overall operation precision and stability of the plunger balancing device are improved.

The utility model provides a hemodialysis device, which relates to the technical field of dialysis devices and comprises a box body, universal wheels are arranged at the bottom of the box body, a cover plate is rotatably connected to the surface of the box body, a dialyzer body is slidably connected to the inside of the box body, a motor is fixedly mounted on the surface of the box body, and the motor is fixedly mounted on the surface of the box body. A motor is arranged in the box body, a bidirectional lead screw is installed at the output end of the motor, a sliding block is slidably connected to the interior of the box body, a sliding plate is fixedly installed on the surface of the sliding block, a connecting rod is rotatably connected to the interior of the sliding plate, and a sliding groove is formed in the surface of the dialyzer body. By arranging the box body, the motor, the bidirectional lead screw, the sliding block, the sliding plate, the connecting rod and the cover plate, the effect that the dialysis instrument body is conveniently stored in the box body when the dialysis instrument body is not used and moved is achieved, so that the dialysis instrument body is conveniently protected, the situation that the dialysis instrument body is collided and damaged during moving is avoided, and the dialysis instrument is simple in structure and high in practicability.

Dialysis device for performing peritoneal dialysis with at least one control unit, with at least one input unit for inputting one or more values, and with at least one processor, wherein the processor is designed to perform a method for estimating the treatment duration of a peritoneal dialysis treatment, wherein the estimation of the treatment duration is based on an ideal treatment duration, wherein the ideal treatment duration is increased by one or more delay values, characterized in that the delay values ​​depend on one or more patient-specific parameters.where a patient-specific parameter is catheter performance and the catheter performance is taken into account when estimating the infusion time and / or when estimating the outflow time and / or when estimating the duration of the last infusion, and the catheter performance, and in particular an absolute or relative increase thereof, is editable by a user.

This invention relates to a dialysis apparatus which ultra-filters blood and to a related method of ultra-filtering blood ex-vivo.More preferably the invention relates to haemodiafiltration using protein-losing membranes and a secondary ultrafiltration and partial re-infusion of haemodiafiltrate for increasing extraction of middle molecules and protein bound uraemic toxins and reducing albumin loss.

The utility model discloses a hemodialysis device detector controller which comprises a shell, a battery assembly, a light assembly, a PCB and a plug assembly, the shell comprises a shell body and a cover plate, the battery assembly and the PCB are arranged in the shell body and connected with the shell body, and the plug assembly is connected with the PCB and penetrates through the side face of the shell body; the light assembly is arranged on the battery assembly and connected with the PCB and the battery assembly, a receding hole is formed in the cover plate, and the light assembly carries out light indication at the position of the receding hole; according to the utility model, the battery assembly, the light assembly and the PCB are arranged in the shell body of the shell, the light assembly is arranged on the battery assembly, meanwhile, the receding hole is formed in the cover plate, and the light assembly is matched with the receding hole, so that the type of a current sensor to be tested and calibrated can be visually displayed on the surface of the cover plate through the color of light.

Fault handling unit (20) for a medical device (D), in particular for a dialysis machine, wherein the fault handling unit (20) is configured to record a number of consecutive confirmation inputs (BE) as actual values ​​in response to each currently issued device fault message (GFM) representing a reportable condition (222) of the medical device (D), wherein the fault handling unit (20) comprises a memory (MEM) in which a preconfigured target value for the number of consecutive confirmation inputs is stored, and wherein the fault handling unit (20) comprises an evaluation unit (21) which is designed to compare the recorded actual value with the stored target value for conformity and, if the target value is exceeded, to initiate a modified device control (226), where several target values ​​are provided, defining different value ranges, where each value range is assigned a specific, configurable control procedure, wherein the fault handling unit (20) comprises an evaluation unit (21) which is designed to evaluate which operator has confirmed the currently issued device fault message (GFM) with a confirmation input (BE), and where a user identity (220), which is specific to each user, is captured, where the target value is configured depending on the captured user identity and where the modified control (226) depends on the range of values ​​into which the recorded actual value falls.