FLUID FLOW CONTROL OF A BLOOD TREATMENT DEVICE

Abstract

The invention relates to a blood treatment device, having the following:

a fluid line system (10) for guiding a fluid flow comprising a line portion (14), wherein the line portion (14) can be formed as a closed fluid system, and comprising at least one first concentrate supply line (26) for supplying a first concentrate solution; a fluid pump (11) for conveying the fluid in the fluid line system (10); a determining means (13; 23; 33; 29) for capturing a state of the fluid line system (10); a control unit for controlling the fluid flow; characterized in that the control unit is configured in such a way that the line portion (14) only forms a closed fluid system when the state captured by the determining means (13; 23; 33; 29) meets a predetermined condition.

Claims

1. A blood treatment device, having a fluid line system for guiding a fluid flow comprising a line portion, wherein the line portion is capable of being a closed fluid system, and comprising at least one first concentrate supply line for supplying a first concentrate solution; a fluid pump for conveying a fluid in the fluid line system; a determining means for capturing a state of the fluid line system; a control unit for controlling the fluid flow; wherein the control unit is configured in such a way that the line portion only forms a closed fluid system when the state captured by the determining means meets a predetermined condition.

2. The blood treatment device according to claim 1, further having a first concentrate sensor for capturing a first concentrate value prevailing in the first concentrate supply line, wherein the determining means comprises the first concentrate sensor, and the predetermined condition is only met when the first concentrate value meets a first concentrate value condition; and/or a mixed fluid sensor for capturing a mixed fluid value prevailing in the fluid line system downstream from the first concentrate supply line, wherein the determining means comprises the mixed fluid sensor, and the predetermined condition is only met when the mixed fluid value meets a mixed fluid value condition.

3. The blood treatment device according to claim 1, further having a connecting means for transferring the first concentrate solution into the first concentrate supply line; a chamber, into which the connecting means is capable of being introduced; a connecting means sensor for capturing a position of the connecting means; and wherein the determining means comprises the connecting means sensor, and the predetermined condition is only met when the position of the connecting means meets a position condition.

4. The blood treatment device according to claim 3, further having a means for capturing a concentrate supply mode, wherein the predetermined condition is only met when a position condition is met, and when the captured concentrate supply mode is a concentrate supply mode, in which the concentrate supply takes place via the connecting means in the detected position.

5. The blood treatment device according to claim 1, further having a second concentrate supply line for supplying a second concentrate solution, and a second concentrate sensor for capturing a second concentrate value in the second concentrate supply line, wherein the determining means comprises the second concentrate sensor, and the predetermined condition is only met when the second concentrate value meets a second concentrate value condition.

6. The blood treatment device according to claim 3, wherein the connecting means sensor has a magnetic sensor or a contact sensor.

7. The blood treatment device according to claim 3, wherein the connecting means sensor is arranged on the chamber of the blood treatment device and/or the connecting means sensor is formed in such a way to be capable of being attached to a concentrate container, which can be delivered to the blood treatment device.

8. The blood treatment device according to claim 1, wherein the first and/or second concentrate sensor is a conductance sensor or a conductivity sensor or an ultrasonic sensor, and/or the mixed fluid sensor is a conductance sensor or a conductivity sensor or an ultrasonic sensor.

9. The blood treatment device according to claim 1, further having a line branch, which is formed parallel to at least one partial portion of the line portion, so that a fluid flow can be connected via the line branch in the case of a fluid flow via the line portion; and a dialyzer in the line branch.

10. The blood treatment device according to claim 1, further having locking elements in the fluid line system, wherein the control unit is configured so as to form the line portion as a closed fluid system by controlling at least the locking elements.

11. The blood treatment device according to claim 1, further having a pressure sensor for capturing a pressure value in the line portion, wherein the control unit is thereby configured to only perform a pressure holding test in the line portion when the state captured by the determining means meets the predetermined condition, in which the pressure holding test involves applying a pressure to the fluid in the line portion, and the pressure values in the line portion are captured during a predetermine time period, and a conclusion is drawn from a change of the pressure values to a leakage in the line portion.

12. The blood treatment device according to claim 1, further having at least one first concentrate pump for conveying the first concentrate solution.

13. A method for controlling a fluid flow in a blood treatment device, wherein the blood treatment device has a fluid line system for guiding a fluid flow comprising a line portion, which can be formed as a closed fluid system, and at least a first concentrate supply line for supplying a first concentrate solution; having detecting a state of the fluid line system by means of a determining means; and comparing the state to a predetermined condition; wherein allowing that the line portion only forms a closed fluid system when the state of the fluid line system meets the predetermined condition.

14. The method according to claim 13, wherein the blood treatment device has a first concentrate sensor as determining means for capturing a first concentrate value prevailing in the first concentrate supply line, and wherein the predetermined condition is only met when the concentrate value meets a concentrate value condition and/or the blood treatment device has a mixed fluid sensor as determining means for capturing a mixed fluid value in the fluid line system downstream from the concentrate supply line, and wherein the predetermined condition is only met when the mixed fluid value meets a mixed fluid value condition.

15. The method according to claim 13, wherein the blood treatment device has a chamber and a connecting means, which can be introduced into the chamber, as well as a connecting means sensor as determining means for capturing a position of the connecting means, further having detecting a position of the connecting means by means of the connecting means sensor, wherein the predetermined condition is only met when the position of the connecting means meets a position condition.

16. The blood treatment device according to claim 3, wherein the connecting means sensor is a Hall sensor or a mechanical switch.

17. The blood treatment device according to claim 11, wherein the pressure is 600 to 800 mmHg.

18. The blood treatment device according to claim 11, wherein the pressure is from 700 to 750 mmHg.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0075] In which

[0076] FIG. 1 shows a diagram of a blood treatment device;

[0077] FIG. 2 shows a section of a concentrate supply arrangement of the blood treatment device;

[0078] FIG. 3 shows a flow chart of a method for controlling a fluid flow in a blood treatment device.

DETAILED DESCRIPTION OF AN EXEMPLARY EMBODIMENT

[0079] With reference to FIG. 1, a first embodiment will be described below. FIG. 1 thereby shows a simplified diagram of a blood treatment device. In the exemplary embodiment shown in FIG. 1, the blood treatment device is a dialysis machine.

[0080] In the case of the blood treatment device shown in FIG. 1, the blood to be treated flows through a blood chamber of a dialyzer 9 in an extracorporeal blood circuit. A dialysis fluid flows through a dialysis fluid circuit and, in the counter flow principle, through a dialysis fluid chamber of the dialyzer 9. The blood chamber as well as the dialysis fluid chamber are thereby separated by means of a semi-permeable membrane.

[0081] Substances to be removed from the blood pass through the semi-permeable membrane into the dialysis fluid and are thus discharged through the dialysis fluid, now referred to as dialysate. An excess amount of fluid can simultaneously be ultrafiltered out of the blood via a pressure gradient. The amount of fluid to be removed is conveyed with the help of an ultrafiltration pump.

[0082] To purify a patient's blood, blood is drawn from the patient via an arteriovenous fistula by means of a shunt and is guided into the extracorporeal blood circuit. The conveying of the blood thereby takes place with the help of a blood pump, which is not illustrated here. The purified blood leaves the dialyzer 9 and is subsequently supplied to the patient again.

[0083] The fluid supply of the blood treatment device takes place via a dialysis water connection 1, a pressure reducing valve 4 connected downstream, which reduces the pressure for example to approximately 0.5 bar, as well as an intake regulator 5. Permeate, that is, softened and filtered water, is supplied via the dialysis water connection 1. In the exemplary embodiment described here of the blood treatment device as a dialysis machine, permeate is the base fluid.

[0084] After passing through the dialyzer 9, the dialysate is supplied to an outflow via a dialysis fluid discharge line and an outflow valve 61. The heating of the fresh dialysis fluid can thereby take place via a heat exchanger 7 through the dialysate, so as to subsequently be further heated, for instance by means of a heating coil or a heating rod. In addition, the permeate is subjected to a degassing in a degassing chamber 8. To convey the solution of air, the permeate is subjected to a negative pressure by means of a degassing regulator 81 for this purpose. Due to the temperature increase and pressure reduction, air can thus escape in bubble form via an air separator 82 connected downstream.

[0085] The permeate is conveyed with the help of a fluid pump 11. The fluid pump 11 can thereby be formed, for example, as gear pump, membrane pump or the like. If the fluid pump 11 is formed as gear pump, a bypass is formed around the gear pump, so that the gear pump does not need to be stopped when preventing the fluid flow. As described above, the dialysate is supplied to an outflow via a flow pump and a balance chamber 3 following in the flow direction.

[0086] After the degassing of the base fluid, here the permeate, the mixed fluid, here the dialysis fluid, is created by admixing at least one concentrate solution. To provide the fresh dialysis fluid, permeate supplied via the dialysis water connection 1, and for example two concentrate solutions, for instance a bicarbonate concentrate solution and an acid concentrate solution, supplied for example from concentrate containers, which are not illustrated here, is thus mixed.

[0087] As illustrated in FIG. 2, the concentrate solutions can be conveyed via concentrate pumps 25, 35. The concentrate pumps 25, 35 can be formed, for example, as reciprocating pumps, membrane pumps or gear pumps. The proportioning, that is, the mixture of acid concentrate and bicarbonate with permeate at a predetermined ratio, can take place volumetrically or controlled by conductivity. In the case of the volumetric proportioning shown in this exemplary embodiment, the supplied volume is reached via a clocked supply by means of the concentrate pumps 25, 35, for example reciprocating pumps.

[0088] In the alternative, however, the proportioning can also take place in a conductivity-controlled manner, wherein the proportioning is controlled by means of conductivity sensors here. The supply of concentrate is increased thereby, until the desired conductivity is reached. The dialysis fluid created by means of the mixing subsequently flows through a part of the balance chamber 3 and thus reaches into the dialysis fluid circuit. The balance chamber 3 thereby balances between the fresh dialysis fluid and the used dialysis fluid, the dialysate. A mixed fluid sensor 13 is connected upstream of the dialyzer 9, in order to check the correct composition of the dialysis fluid. A bypass valve 17 is connected downstream from the mixed fluid sensor 13, for example formed as conductivity sensor.

[0089] The bypass valve 17 is opened, if the mixed fluid sensor 13 detects an unphysiological fluid, that is a fluid, which does not meet a predetermined condition, for example a predetermined conductivity, during the dialysis treatment.

[0090] To form the bypass, that is, the prevention of a fluid flow via a line branch 15 through the dialyzer 9, locking elements 91, 92 are operated. In particular a dialyzer intake valve 91 as well as a dialyzer drain valve 92, which control the intake and drain of the dialysis fluid to the dialyzer 9, are thereby closed. The dialysis fluid thus flows over a line portion 14. The valves can thereby be formed as magnetic valves. As a result, it is prevented that unphysiological fluid reaches the dialyzer 9. The safety of the patient is ensured.

[0091] In addition to the monitoring of the correct composition of the dialysis fluid, the operation of the blood treatment device can also be checked, for example for the presence of a leakage, so as to ensure the safety of the patient. To identify possible leakages in the system, a pressure holding test is performed. As part of this pressure holding test, deviations from a stable state can be captured by means of signal monitoring of at least one pressure sensor 16.

[0092] During the dialysis, the pressure holding test is performed at regular time intervals, for example every 12.5 minutes. For this purpose, the dialyzer 9 is disconnected from the dialysis fluid circuit for a certain time interval, for example 8 seconds. The line portion 14 is thus formed as a closed fluid system while performing the pressure holding test. To form this closed fluid system, the control unit controls the locking elements 91, 92 in such a way that they block the fluid flow. To form the closed fluid system, the balance chamber 3 is additionally held in a state, that is, no fluid flow takes place via the balance chamber, that is, no switch-over of the balance chamber 3.

[0093] When the dialyzer 9 is disconnected from the dialysis fluid circuit, the blood treatment device is thus in the bypass operation. As described above, the dialyzer intake valve 91 as well as dialyzer drain valve 92 are closed, while the bypass valve 17 is open. As a result, the line branch 15 is disconnected from the remaining fluid line system 10 by closing the corresponding valves. In other words, no fluid flow takes place between the line branch 15 and the remaining fluid line system 10 after the closing of the valves. To attain a test, which is as complete as possible, a change of the balance chamber half, which belongs to the line portion 14, takes place between two consecutive pressure holding tests.

[0094] In this case, this line portion 14 forms a self-contained system, in the case of which a stable pressure can be expected. Compared to the treatment pressure, the pressure prevailing in the line portion 14 during the pressure holding test is thereby increased. To detect possible leakages, the pressure curve during the pressure holding test is captured. If a pressure drop is detected, a conclusion can be drawn to the presence of a leakage.

[0095] Prior to the beginning of the pressure holding test, dialysis fluid is supplied from the supply system, and thus also via the concentration supply line 26, 36, until the desired pressure is reached. No fluid outflow takes place during the supply of the dialysis fluid into the line portion 14, so that pressure is built up. If the presence of a condition, for example a conductivity, which does not meet the expected value, is now measured by means of the mixed fluid sensor 13, a conclusion can be drawn to the presence of an unphysiological fluid in the dialysis fluid circuit.

[0096] If an unphysiological fluid is detected, the blood treatment device switches into the bypass operation, as described above, so as to prevent that unphysiological fluid reaches the dialyzer 9. After the detection of an unphysiological fluid, the dialysis fluid circuit can be flushed in a cleaning program. It can thus be prevented that unphysiological fluid, which is present in the dialysis fluid circuit, reaches into the dialyzer 9.

[0097] The formation of a closed system, for example for performing the pressure holding test, is prevented by means of the blood treatment device according to the invention, as soon as an unphysiological fluid is detected. The pressure holding test is thus prevented at the earliest possible point in time, or a pressure holding test, which has already been started, is terminated, respectively. As a result, the interruption of the treatment as a whole can be kept as short as possible.

[0098] As illustrated in FIG. 2, the blood treatment device has concentrate supply lines 26, 36 for supplying concentrate. The corresponding amount of concentrate is supplied via these concentrate supply lines 26, 36 to the permeate via the respective concentrate pump 25 or 36, respectively, and the desired composition of the dialysis fluid is thus attained.

[0099] The respective concentrate is supplied to the permeate as concentrate solution, that is, in liquid form. Concentrate sensors 23, 33 are in each case arranged in the respective concentrate supply lines 26, 36. The supply of the concentrate or the composition of the concentrate solution, respectively, can be monitored by means of these concentrate sensors 23, 33. The monitoring of the concentrate supply via concentrate supply lines 26, 36 can take place, for example, by means of conductance sensors or conductivity sensors.

[0100] The concentrate supply of the blood treatment device can take place from concentrate containers delivered to the blood treatment device, by means of connecting means 28, 38 inserted into said concentrate containers. In the arrangement illustrated in FIG. 2, the connecting means 28, 38 are inserted into chambers 27, 37 of the blood treatment device. This configuration, in which the connecting means 28, 38 are located in the chamber 27, 37, will be assumed for a flushing process of the blood treatment device. In addition, the position of the connecting means 28, 38 differs, depending on the concentrate supply mode, as will be described above. For the position capture, connecting means sensors 29, 39 are attached to the chambers 27, 37 of the blood treatment device in the embodiment shown in FIG. 2.

[0101] A corresponding concentrate solution in liquid form is prepared for the dialysis treatment in the concentrate containers, which are not illustrated in FIG. 2. This type of concentrate supply is understood here as first concentrate supply mode (KVM). In the alternative, the concentrate supply can be designed from bags, which are fastened to the blood treatment device, comprising dry concentrate or as central concentrate supply.

[0102] Variations can also be provided, in the case of which the concentrate supply for the respective concentrates takes place in different ways. For example, the concentrate supply of bicarbonate can be designed as dry concentrate, which is filled into bags, while the acid concentrate is delivered to the blood treatment device in liquid form in a concentrate container.

[0103] In the first case, in which the concentrate supply takes place from concentration solution provided in liquid form via concentrate containers, connecting means 28, 38, for example suction wands, are inserted into the respective concentrate containers. These connecting means 28, 38 supply the concentrate solution to the permeate via the concentrate supply line 26, 36.

[0104] For the second alternative of the concentrate supply by means of dry concentrate, the respective connecting means 28, 38 is inserted into a chamber 27, 37, for example a flushing chamber, of the blood treatment device. In the case of this alternative, a part of the fluid from the supply system, which flows in via the dialysis water connection 1, can be supplied to the bag comprising dry concentrate, controlled via a control valve.

[0105] After the fluid supply into the dry concentration bag, the concentrate solution, which is now fluid, is analogously supplied to the permeate via the chamber 27, 37, in which the respective connecting means 28, 38 is inserted. For this purpose, the bags comprising dry concentrate are fastened to the blood treatment device at corresponding interfaces, for example to protrusions formed with supply and discharge lines.

[0106] As further alternative, the concentrate supply of the respective concentrate can take place centrally. A concentrate container is thereby not provided at each blood treatment device. On the contrary, the supply takes place via a collection canister, which can supply several blood treatment device with concentrate. For this purpose, the individual blood treatment devices have a line connection to this collection canister. In this case of the concentrate supply, the respective connecting means 28, 38 is also inserted into the chamber 27, 37 of the blood treatment device.

[0107] In the case in which the concentrate supply takes place via dry concentrate in bags, it is detected that the concentrate solution is not supplied from the concentrate containers. This type of concentrate supply is detected, for example, by means of an additional sensor system. Contact sensors, for instance Hall sensors, can thereby be arranged on a housing cover of the blood treatment device, which is associated with the fastening of a dry concentrate bag. In the alternative, the type of the concentrate supply can be set manually on the blood treatment device. The connecting means 28, 38 remains inserted in the chamber 27, 37 during this type of concentrate supply.

[0108] In the case in which the concentrate supply takes place centrally, this can also be detected via a sensor system. For this purpose, a contact sensor can be provided at the corresponding connecting point for the connecting line of the blood treatment device to the central concentrate supply. In the alternative, the type of the concentrate supply can be selected manually on the blood treatment device.

[0109] Independently of the type of the concentrate supply, the concentrate flow takes place via the corresponding connecting means 28, 38 and the corresponding concentrate supply line 26, 36 to the permeate, wherein the concentrate flow passes through fluid sensors arranged in the concentrate supply lines 26, 36, more precisely the first concentrate sensor 23 and the second concentrate sensor 33. As described above, these concentrate sensors 23, 33, which are formed in the concentrate supply lines 26, 36, are sensors, which provide information relating to the concentrate solution prevailing in the concentrate supply lines 26, 36.

[0110] If the concentrate sensors 23, 33, which are arranged in the concentrate supply lines 26, 36, as illustrated in FIG. 2, are formed as conductance sensors, they detect whether a fluid is present in the concentrate supply line 26, 36. These conductance sensors can differentiate between a state—conductivity detected—and a state—no conductivity detected—and can thus provide insight into the presence of a concentrate flow. If the concentrate sensors 23, 33 emit a signal that no conductivity was detected, a start of the pressure holding test is prevented.

[0111] Due to the fact that the blood treatment device is already in bypass operation during the pressure holding test, a switch-over cannot take place any longer in the case of a capture of an unphysiological fluid, for example a detection of air in a concentrate supply line 26, 36 (state no conductivity detected). According to the claims, this signal is evaluated, however, in order to terminate a pressure holding test, which has already been started. It is prevented thereby that air reaches into the dialysis fluid circuit. If an unphysiological fluid can already be detected at this early point in time, the interruption of the dialysis treatment can be kept short. A pressure holding test is not performed when it is certain that the condition for a fluid value is not met. The condition for the fluid value is not met when an unphysiological fluid is present.

[0112] As described above, not only an already started pressure holding test is also terminated by evaluating the concentrate sensors 23, 33 as part of the pressure holding test, but the start of a pressure holding test is prevented as well. To keep interruptions of the dialysis treatment short, an evaluation of the concentrate sensors 23, 33 thus also takes place according to the claims as part of the pressure holding test.

[0113] As described above, pressure value sensors, which detect the type of the concentrate supply, can be provided In addition to the concentrate sensors 23, 33. By evaluating these sensors, it is possible to detect unphysiological fluid early and to effect a prevention of the pressure holding test. If, for example, the concentrate supply takes place via bags, which are filled with dry concentrate, this can be detected by means of contact sensors, for instance Hall sensors. A contact sensor can be arranged, for example, on a housing cover, which has to be operated in order to fasten the dry concentrate bag.

[0114] If the evaluation of the signal of a contact sensor shows that he housing cover is open, a conclusion can be drawn to a concentrate supply with dry concentrate. To detect the central concentrate supply, a contact sensor can similarity be formed at an interface for connecting the central hose system. In the alternative or in addition, the type of the concentrate supply can be selected manually at the blood treatment device.

[0115] If a concentrate supply via concentrate containers is present, the respective connecting means 28, 38 can be inserted into the corresponding concentrate container for this purpose. If it is captured, however, that the respective connecting means 28, 38 is located in the chamber 27, 37, it results from this fact that no physiological fluid can be drawn in. In the case of this further termination condition, it can be detected first, which type of the concentrate supply is present.

[0116] The position of the corresponding connecting means 28, 38 is determined subsequently, in order to capture whether the connecting means is inserted into the concentrate container or into the chamber 27, 37 of the blood treatment device or is located therein, respectively. This can take place, for example, via an evaluating of contact sensors. An exemplary course of this test sequence is illustrated in FIG. 3.

[0117] Step 101 thereby indicates the beginning of the pressure holding test. The query whether the fluid value meets the predetermined condition takes place in step 102. If the fluid value meets the predetermined condition (102b), it is determined in step 103, whether the concentrate supply mode is a first concentrate supply mode. If this condition is met as well (103b), it is determined in step 104, whether the position of the connecting means 28, 38 meets the predetermined condition. If the determination of the corresponding condition provides a positive result (102b, 103b, 104b), the pressure holding test is performed in step 105.

[0118] If the respective condition is not met, that is, if the fluid value does not meet the predetermined condition, the pressure holding test is terminated in step 202. If the condition is not met that the concentrate supply mode is a first concentrate supply mode, the pressure holding test is likewise terminated in step 203. If the condition is not met that the position of the connecting means 28, 38 meets a predetermined condition, the pressure holding test is likewise terminated in step 204.

[0119] The order of the steps can be changed thereby, so that the position of the connecting means 28, 38 is detected first, and subsequently the type of the concentrate supply.

[0120] In addition to the conditions illustrated in FIG. 3, further conditions can be captured in order to make a decision to perform the pressure holding test. Not all conditions illustrated in FIG. 3 have to likewise be queried. It may be sufficient, for example, to check only a presence of the condition for the fluid value.

[0121] If it is thus detected that the corresponding connecting means 28, 38 is inserted into the chamber 27, 37 of the blood treatment device and not into the concentrate container, a conclusion can be drawn therefrom that the connecting means 28, 38 draws in unphysiological fluid. To also prevent that unphysiological fluid is drawn in and reaches into the dialysis fluid circuit in this case, the pressure holding test is prevented or terminated, respectively.

[0122] If it is detected, in contrast, that a central concentrate supply or a dry concentrate supply is present, in other words a concentrate supply, in the case of which the connecting means 28, 38 has to be inserted into the chamber 27, 37 of the blood treatment device, a termination of the pressure holding test does precisely not take place.

[0123] To detect whether the connecting means 28, 38 is inserted into the chamber 27, 37 of the blood treatment device, connecting means sensor 29, 39 or position detecting sensors, respectively, can in each case be assigned to the respective chambers 27, 37, into which the connecting means 28, 38 are inserted, as described with regard to FIG. 2. For example magnetic sensors or contact sensors, for instance Hall sensors, can be used for this purpose. In the alternative, mechanical switches, for instance pressure switches, toggle or rocker switches can be used.

[0124] By evaluating this additional information, the type of the concentrate supply, for example obtained by means of connecting means sensors 29, 39 as well as fluid sensors 13, 23, 33, in particular concentrate sensors in the concentrate supply lines 26, 36 as part of the pressure holding test, unphysiological fluids can be detected at an early point in time, more exactly prior to reaching the dialysis fluid circuit. The pressure holding test is thus not performed in the case that the predetermined conditions are not met. The predetermined conditions are not met when an unphysiological fluid is present.

[0125] As a result, interruptions of the dialysis treatment are kept short in that no closed system is formed when the necessary conditions are not met. In the case of a corresponding control, a time-intensive flushing, for example, can additionally be prevented, in order to clean the dialysis fluid circuit. In addition, the patient safety is increased by preventing the pressure holding test when an unphysiological fluid is present.

[0126] If the pressure holding test is performed, higher pressures as compared to the pressures, which are present during a treatment, are produced in the dialysis fluid circuit. If unphysiological fluid is present in the dialysis fluid circuit, it can be prevented in any case by means of the solution according to the claims that the pressure holding test is performed and high pressures are generated.

[0127] The control can have a processor or a microchip, respectively, which, in combination with a storage device, in which a program code is stored, can be configured or programmed, respectively, to perform the corresponding controls in the blood treatment device. The processor or the microchip, respectively, is set up to process data and/or to take over the communication, inter alia. The processor or the microchip, respectively, can be programmed by means of configuration presets, and then, inter alia, also serves as processing unit for processing operational and machine data.