Medical bag, pump for connection with a medical bag, and method for flushing a connected line
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- FRESENIUS VIAL
- Filing Date
- 2024-08-29
- Publication Date
- 2026-07-08
AI Technical Summary
Current methods for flushing medical tubes during enteral feeding or infusion therapy are cumbersome, error-prone, and time-consuming, leading to potential clogging and incorrect medication administration, which compromises patient safety and comfort.
A medical bag with two sealed compartments for different fluids, allowing for simultaneous administration and flushing through a single output port with a selector valve, simplifying the process and reducing the need for additional equipment.
The solution simplifies the flushing process, reduces errors, and increases the frequency of flushing, thereby minimizing clogging and ensuring accurate medication administration, enhancing patient safety and comfort.
Smart Images
Figure EP2024074135_06032025_PF_FP_ABST
Abstract
Description
[0001] Medical bag, pump for connection with a medical bag, and method for flushing a connected line
[0002] Description
[0003] The invention relates to a medical bag, a pump for connection with a medical bag as well as a method for flushing a connected line using a medical bag.
[0004] During enteral feeding or infusion therapy, nutrition or medical solution (medication) respectively is provided to a patient via a connected line. The connected line comprises a medical bag, a pump or pump set and a tube. The tube is connected to the pump or pump set and ends in a patient access. In case the medical bag is used for nutrition, the patient access may for example be the gastrointestinal tract of a patient. In case the medical bag is used for infusion therapy the patient access may for example be an IV access like a port. Nutrition and / or medication, provided in the medical bag is pumped into the tube via the pump and is thus provided to the patient’s access directly.
[0005] After administration of nutrition or medication, remnants of nutrition formula or medication may linger in the tube, which may result in a clogging of the tube. A clogged tube needs to be replaced, which, for the case of nutrition usually involves an invasive clinical act and surgery, hence compromising patient comfort and safety.
[0006] Furthermore, remnants of nutrition formula or medication lingering in the tube may result to the patient not having received the correct does of nutrition formula or medication. Thus, flushing the line is essential for administering the correct dose to a patient, especially by the use of critical medication such as chemotherapy.
[0007] Furthermore, some medication (for example cytotoxic drugs) require special safe handling to prevent the care giver I user to get in contact with the drug. Line flushing is one of the recommended practices to reduce the risk of contact.
[0008] For the use case of nutrition, in order to avoid clogging, the tube needs to be regularly flushed, e.g. with water. In current clinical practice, tubes are flushed routinely with 30ml of water every four hours, before and after medication administration, as well as after any interruption of enteral nutrition administration. Tube flushing can be performed in an automated way or manually. Manual tube flushing is performed with a syringe in which a water solution is provided. For medical staff, this involves several steps to be performed such as fetching the syringe, unpacking it, filling the syringe, plugging the syringe to the tube, either via a three-way stopcock or directly after disconnecting the tube from the pump, and, finally, pushing the water solution through the tube, unplugging the syringe from the stopcock or tube and disposing or cleaning and storing the syringe.
[0009] Also, during infusion therapy numerous steps are needed to provide flushing of the line or administering a second fluid. For example, another infusion bag needs to be provided containing the second fluid and an infusion set-up with a primary and a secondary line is set up.
[0010] As enteral feeding or infusion therapy is also provided at home, these steps are not only required to be performed by medical staff, but also by the patient him- or herself or other people assisting the patient.
[0011] Due to the many steps involved, flushing the tube is a time consuming and error-prone procedure. Individual or several steps might be forgotten or not carried out correctly. Flushing the tube might be forgotten at times and not being carried out regularly at all.
[0012] It is an object of the instant invention to overcome these disadvantages of the prior art and simplify flushing of a tube, hence reducing errors like resulting clogging and replacement, such that patient hygiene, safety and comfort are increased. Moreover, the work load of medical staff is reduced and resources saved.
[0013] This object is achieved by means of a medical bag, wherein the medical bag comprises a first compartment and a second compartment for a first and a second fluid, respectively, and an output port for connecting the medical bag to a line. The medical bag is characterized by the first compartment and the second compartment being sealed with respect to each other and the output port comprising a selector for selecting between a fluid output from the first compartment through the output port or a fluid output from the second compartment through the output port. The first and second compartment being sealed with respect to each other allow for the provision of two fluids, e.g. a nutritional fluid or medication, and a cleaning fluid in one medical bag. Via the selector, the medical bag can be operated in two modes: one mode in which fluid from the first compartment is provided at the output port and one mode in which fluid from the second compartment is provided at the output port. E.g. the first mode is an administration mode (administration state) and the second mode is a flushing state. In this way, two functions can be provided on a connected line comprising the medical bag of the invention: administration and flushing. Disconnecting or reconnecting parts of a connected line in order to flush a connected line become superfluous. Flushing a connected line is simplified with less actions to be performed, and hence less error-prone. Moreover, resources may be saved as no additional syringe, or bag needs to be provided. By simplifying the flushing, flushing is likely carried out more often, especially for the use case of nutrition, reducing clogging and / or incorrect does administration and its negative consequences for patient comfort and safety. As no additional equipment such as a syringe and second fluid are needed, flushing can be carried out anywhere at any time, so that necessity and not availability becomes the only determinant for flushing a connected line.
[0014] According to one embodiment the selector comprises a manual handle, that can take two positions. A first position which is assigned to the first mode and a second position which is assigned to the second mode. For example, a user can act on the handle, for example turn it in one direction or the other, like a stopcock, to transfer it from the first position to the second position or vice versa.
[0015] According to another example the selector comprises a knob that can be pushed into and / or released from the first position and the second position of the selector.
[0016] According to one embodiment the handle points in its first position to the first compartment of the bag and in its second position to the second compartment of the bag. In this way a simple, visible feedback is provided to a user, which mode is currently selected.
[0017] According to one embodiment, the first compartment comprises a first fluid and the second compartment comprises a second fluid. In one example, the first fluid is a nutritional fluid. In some instances, the nutritional fluid comprises medication. The second fluid is, for example, a hydration fluid and / or a fluid for cleaning a connected line. The fluid for cleaning a connected line by flushing the connected line and for providing hydration is, for example, water. Depending on whether the second fluid is used for cleaning or for hydrating, different pump settings, such as flow rate and volume, are used in one example.
[0018] According to one embodiment, the volume of the first compartment is larger than the volume of the second compartment. In this way, the available volume of the medical bag is optimized in order to provide for a sufficient amount of the second fluid per amount of the first fluid. For example, the volume of cleaning or hydration fluid needed to flush a connected line or to provide hydration to a patient is smaller than the associated volume of nutrition to be provided via the connected line.
[0019] According to one embodiment, the selector comprises a directional valve which, in a first switching position, connects the first compartment to the output port and which, in a second switching position, connects the second compartment to the output port. In this way, a user can select between an output from the first compartment, i.e. a providing of the first fluid, and an output from the second compartment, i.e. a providing of the second fluid. In particular, via the directional valve, a selection between an administration state (first switching position) and a flushing state (second switching position) of the medical bag can be made. Due to the directional valve, the two fluid volumes are never mixed at the output port.
[0020] For example, the directional valve is a manual valve to be manually actuated. The manual valve may be actuated by manually acting on the handle of the selector. By acting on the handle of the selector the directional valve can be transferred from the first switching position to the second switching position, and vice versa. Alternatively, the directional valve is an automated valve to be actuated by a motor. The motor allows for an automated switching between the first and the second switching position and, correspondingly, the administration state and the flushing state. In one example, the motor is actuated by a pump connected to the medical bag.
[0021] In one example, the bag, e.g. the selector comprises a position sensor for determining whether the selector is in the first mode or in the second mode. For example, the selector comprises a handle and the position sensor is able to determine whether the handle is in its first position or in its second position. In one example, the directional valve can be actuated by a motor, e.g. by a pump connected to the medical bag, and a dedicated position sensor feedback can be provided to the pump, connected to the medical bag to transfer the valve in the position which corresponds to the mode selected by the selector.
[0022] In one example, the bag, e.g. the directional valve comprises a position sensor for determining whether the directional valve is in the first switching position or in the second switching position. With the position sensor, feedback can be provided to an actuating motor on the position of the directional valve and hence, on the state of the medical bag (feeding or flushing). In one example, the directional valve can be actuated by a motor, e.g. by a pump connected to the medical bag, and a dedicated position sensor feedback can be provided to the pump connected to the medical bag. In one example, the bag, e.g. the selector comprises a position sensor for determining whether the directional valve is in the first mode or in the second mode, and for determining whether the directional valve is in the first switching position or in the second switching position. According to one embodiment the same sensor can be used. Alternatively, a position sensor is used for determining the position of the selector and another position sensor is used for determining the position of the directional valve. Position sensor feedback can be provided to the pump connected to the medical bag.
[0023] According to one embodiment, the output port is the only output port of the medical bag. In one example, the output port is configured to be connected to a line (connected line) comprising a pump and a tube. Hence, only a single line can be connected to the medical bag. First and second fluid, in particular nutrition and cleaning or hydration fluid (e.g. water), or medication and cleaning fluid (e.g. NaCI) are provided to the same connected line and hence, to the same tube.
[0024] According to one embodiment, the medical bag is a medical bag for use in enteral nutrition.
[0025] A further aspect of the invention is a method for flushing a connected line using a medical bag according to the invention, wherein the medical bag is connected to a connected line with a pump and a tube via the output port. The method comprises, using the selector, selecting a fluid output from the first compartment through the output port into the connected line in order to provide a first fluid in the connected line; and, using the selector, selecting a fluid output from the second compartment through the output port into the connected line in order to provide a second fluid in the connected line. Different parameters, such as flow rate and volume, may be set on the pump, depending on the type of first and second fluid.
[0026] According to one embodiment the first fluid is, a nutritional fluid. The second fluid is, for example, a fluid for cleaning the connected line, in particular, the tube, and / or a hydration fluid for providing hydration to a patient. In one example, the second fluid is water. In one example, the second fluid is provided in the connected line in order to provide hydration to a patient and / or the second fluid is used to clean the connected line, in particular the tube of the connected line. Hence, the method can be used to clean the connected line or to provide hydration to a patient. Different parameters, such as flow rate and volume, may be set on the pump, depending on whether a hydration or a cleaning is intended. According to another example the first fluid is a medical solution (medication). The second fluid is, for example a fluid for cleaning the connected line, and / or a second medical solution. Different parameters, such as flow rate and volume, may be set on the pump, depending on the parameters the first fluid has been administered and / or the type of the second fluid.
[0027] A further aspect of the invention is a pump for connection with a medical bag according to the invention. The pump is configured to provide a first pump mode for administration of a first fluid, wherein the first pump mode comprises setting for a volume and flow rate to be applied when pumping from the first compartment of the medical bag into the connected line. In other words, the first pump mode is assigned to the administration state.
[0028] According to one embodiment, the pump is configured to provide a second pump mode, wherein the second pump mode comprises settings for a volume and a flow rate to be applied when pumping from the second compartment of the medical bag into the connected line. For example, in the second pump mode, flow rate and volume are set such that an effective cleaning of the connected line is achieved and / or to ensure a correct amount of the first fluid is administered to the patient. In other words, the second pump mode is assigned to the flushing state.
[0029] According to one embodiment, the pump is configured to provide another (third) pump mode for hydrating a patient, wherein the other pump mode comprises settings for a volume and a flow rate to be applied when pumping from the second compartment of the nutrition bag into the feeding line. In the third pump mode, flow rate and volume are set such that an effective hydration of a patient is achieved.
[0030] According to one embodiment, the pump comprises means to receive and process data from the position sensor of the bag, providing information of the selector being in the first mode or in the second mode and / or the directional valve being in the first switching position or the second switching position.
[0031] In one embodiment, the pump is constituted to determine whether the detected mode and position of the selector and the valve match, meaning if they are assigned to the same state, e.g. the administration state or the flushing state. In case of a detected mismatch and the use of an automated valve, the valve may be transferred to the other position. In other words, by use of an automated valve, when the second mode (flushing state) is chosen by the selector, the automated valve is still in the first switching position. The sensor of the selector provides the information to the pump, that the selector is in the second mode. Hence, the automated valve is transferred to the second switching position.
[0032] According to one embodiment, the pump is constituted to give an alarm to a user in case the mode of the selector and the position of the valve do not match the same state.
[0033] In one example, the pump is constituted to determine whether the selected mode of the bag corresponds to the pump mode. According to one embodiment, the pump is constituted to give an alarm to a user in case the selected first or second pump mode does not match with the selected flushing or administration state of the bag, whether the valve is automated or not.
[0034] The idea underlying the invention shall subsequently be described in more detail with respect to the embodiment shown in the drawings. Herein:
[0035] Fig. 1 illustrates a connected line and a method for flushing a connected line according to the prior art;
[0036] Fig. 2 shows a medical bag according to an embodiment of the present invention;
[0037] Fig. 3 illustrates a method for flushing a connected line according to an embodiment of the present invention; and
[0038] Fig. 4 shows a pump for flushing a connected line according to the present invention.
[0039] Fig. 1 illustrates a line 1 and a method for flushing a line 1 according to the prior art. The line 1 is connected to a medical bag 2. Medical bags known in the prior art comprise a single compartment 21 which is filled with a nutritional fluid. The nutritional fluid may also comprise medication. When pump 3 is turned on, the nutritional fluid is pumped from the compartment 21 into the connected line 1 and, through the tube 5 into the gastrointestinal tract of a patient. When feeding is completed, the pump 3 is stopped. Still, remnants of nutrition and medication may linger in the connected line 1 , in particular in the tube 5. If not cleaned away properly, these remnants may clog the connected line 1 , and in particular the tube 5. A clogged tube 5 has to be replaced, requiring surgery and, hence, compromising patient comfort, health and safety.
[0040] Clogging of the tube 5 is prevented by cleaning the tube 5. This is done by flushing the tube 5 with a cleaning fluid, e.g. water. To this end, a syringe 6 filled with water is attached to the tube 5. This is done either by connecting the syringe 6 to a three-way stopcock 4 on the feeding line 1 or by connecting the syringe 6 directly to the tube 5. In the latter case, the tube 5 has to be disconnected from the connected line 1 first. After flushing the tube 5, the syringe 6 is being removed from the three-way stopcock 4 or the tube 5, respectively. The syringe 6 has to be cleaned and stored away or discarded, depending on the type of syringe 6.
[0041] Hence, a number of steps have to be carried out in order to clean the tube 5. This makes cleaning the tube 5 error-prone, increasing the risk of clogging and hence ensuing feedingtube replacement.
[0042] Fig. 2 shows a medical bag 2, in particular a medical bag 2 for use in enteral nutrition, according to an embodiment of the present invention which overcomes these disadvantages of the prior art. As can be seen in the left and right panels, the medical bag 2 comprises a first compartment 21 and a second compartment 22 which can hold a first and a second fluid, respectively. For example, the first fluid is a nutritional fluid and the second fluid is a fluid for cleaning a connected line 1 attached to the medical bag 2 or for providing hydration to a patient connected to the connected line 1. In one example, the second fluid is simply water which can be used as a cleaning fluid and as a hydration fluid. The two compartments 21 , 22 are sealed with respect to each other. This seal is not intended to be broken, such that the first and the second fluid do not mix.
[0043] In the depicted example, the first compartment has a larger volume than the second compartment, as usually, the volume of cleaning fluid or hydrational fluid needed is smaller than the amount of nutritional fluid provided.
[0044] As can be inferred from the middle panel, the medical bag 2 comprises an output port 23 for connecting the medical bag 2 to a connected line 1. The connected line 1 comprises, for example, a pump 3 and a tube 5. A selector 24 is provided which allows to select between a fluid output from the first compartment 21 or a fluid output from the second compartment 22 through the output port 23. Hence, with the selector 24, a user can select between two states of the medical bag: one state in which the first fluid is provided in the connected line 1 from the first compartment 21 and a second state in which the second fluid is provided in the connected line 1 from the second compartment 22. Also in the output port, the two fluids do not mix. In the depicted example, the selector 24 comprises a directional valve 241. In a first switching position 2411 , depicted in the left panel, the directional valve 241 connects the first compartment 21 to the output port 23. In a second switching position 2412, depicted in the right panel, the directional valve 241 connects the second compartment 21 to the output port 23. The directional valve 241 is a manual valve to be manually actuated or an automated valve to be actuated by a motor. The automated valve is, for example, controlled by a pump 3 provided on the connected line 1 to which the medical bag 2 is connected. In one example, the directional valve 241 comprises a position sensor (not depicted) for determining whether the directional valve 241 is in the first switching position 2411 or in the second switching position 2412. In this way, feedback can be provided on the state of the medical bag 2 to a pump 3 connected to the directional valve 241 , in particular the automated directional valve 241.
[0045] Through the provision of a second compartment 22 comprising a cleaning and / or hydration fluid as well as through the provision of a selector 24 for selecting the output between the first and the second compartment 21 , 22, respectively, a medical bag 2 with a cleaning and hydration function is provided. A simple switch of the directional valve 241 from the first switching position 2411 to the second switching position 2412, either initiated manually by a user or automatically by a pump 3, results in a flushing of the attached connected line 1 , and hence, a cleaning of the entire connected line 1 , including the tube 5. Additional equipment becomes superfluous as well as the numerous and involved steps of providing, filling and connecting a syringe 6 as with prior art medical bags 2. This increases the frequency of flushing and decreases the number of error sources when flushing, hence reducing the risk of clogging and ensuing feeding-tube replacement.
[0046] Fig. 3 illustrates a method for flushing a connected line 1 using a medical bag 2 according to an embodiment of the present invention. The medical bag 2 is connected to a connected line 1 with a pump 3 and a tube 5 via its output port 23. The method comprises selecting, S1 , using the selector 24, a fluid output from the first compartment 21 through the output port 23 into the connected line 1 . For example, the selector 24 comprises a directional valve 241 which is switched to its first switching position 2411. The switching position of the directional valve 241 is, for example, controlled via the pump 3. The pump 3 is started, S2, and a first fluid is provided in the connected line 1. The pump 3 is operated, for example, in a first (feeding) mode in which pump parameters such as flow rate and volume are adapted to providing nutrition. The first fluid is, for example, a nutritional fluid. After feeding is completed, the pump 3 is stopped, S3. The selector 24 is used to select, S4, a fluid output from the second compartment 22 through the output port 23 into the connected line 1 . For example, the selector 24 comprises a directional valve 241 which is switched to its second switching position 2412. The pump 3 is started, S5, providing a second fluid in the connected line 1 or cleaning the connected line 1 using the second fluid. Optionally, the pump 3 is started using a specific “flush” option. This option may be provided through an additional button on the pump 3 itself or as an additional option on a user interface of the pump 3. Upon starting the pump 3 with the “flush” option, different pump parameters are selected by the pump 3 per default. For example, a suitable flow rate and volume are set. E.g. the flow rate may be higher than for a nutritional fluid, but the volume smaller than for a nutritional fluid. In one example, the pump 3 provides a second pump mode for cleaning a connected line 1 , wherein the second pump mode comprises settings for flow rate and volume to be applied when pumping from the second compartment 22. The pump 3 optionally provides another pump mode for hydrating a patient, wherein the other pump mode also comprises settings for flow rate and volume to be applied when pumping from the second compartment 22. An additional menu option allows the user to choose between the two options, for example. In this case, instead of a simple “flush” option, a “clean / hydrate” option may be provided that allows to select between the second pump mode for cleaning a connected line 1 and the other pump mode for hydrating a patient. At the end of cleaning or hydrating, the pump is stopped and the connected line 1 is disconnected from the medical bag, S6. In this way, a simplified method for cleaning an entire connected line 1 , as well as an integrated option for hydrating a patient, is provided.
[0047] Preferably the method further comprises the steps of checking if the chosen pump mode corresponds to the mode selected by the selector. In case of a mismatch the pump gives an alarm to a user, for example an acoustic, optic or haptic feedback, and the user has the possibility to either change the mode of the pump or the position of the selector,
[0048] Fig. 4 shows a pump 3 for connection with a medical bag 2 according to an embodiment of the present invention. In the left panel, the pump 3 is shown while feeding a patient. That means, the selector 24 connects the first compartment 21 comprising a nutritional fluid to the output port 23, e.g. in a first switching position 2411 of a directional valve 241 of the selector 24. The pump 3 applies the settings for flow rate and volume applicable to feeding a patient. These can be inferred from the display 32. After selecting, S4, a fluid output from the second compartment, e.g. comprising water or another cleaning fluid, through the output port 23 into the connected line 1 , the pump 3 is started, S5, using a “flush” option or a “clean / hydrate” option. This selection is, e.g. achieved by pressing a corresponding “flush” button 31 on the pump 3. Upon pressing this button 31 , the pump 3 switches into the second pump mode, changing the settings for flow rate and volume. The second pump mode for cleaning a connected line is depicted in the right panel. As can be inferred from the display 32 of the pump 3, different settings for flow rate and volume do apply here. Optionally, another pump mode may be provided in which setting for flow rate and volume are applied which are adapted to hydrating a patient. In this case, the “flush” button 31 is, in one example, provided as a “clean / hydrate” button 31 which allows to select between the second and the other pump mode for cleaning or hydrating, respectively. For example, upon pressing the “clean / hydrate” button 31 , a menu shows on the display which allows to select one of the first, second and other (third) pump modes. Alternatively, the other pump mode is provided through an additional button on the pump 3 itself, i.e. a “clean” button and a “hydration” button are provided on the pump 3.
[0049] In one example, the selection of fluid output from the second compartment 22 is initiated by pressing the “flush” or “clean / hydrate” button 31 on the pump 3. For example, upon pressing the button 31 , the automated directional valve 241 comprised in the selector 24 switches from its first switching position 2411 to its second switching position 2412. In this case, the step of selecting, S4, output from the second compartment 22, coincides with the step of starting, S5, the pump 3 in a “flush” mode, in particular in either the second pump mode for cleaning the connected line 1 or the other pump mode for hydrating a patient.
[0050] The idea of the invention is not limited to the embodiments described above but may be implemented in a different fashion. The described embodiments related to enteral nutrition may be adapted to the use case of infusion therapy in a reliable manner.
[0051] List of Reference Numerals
[0052] 1 line
[0053] 2 medical bag
[0054] 21 first compartment
[0055] 22 second compartment
[0056] 23 output port
[0057] 24 selector
[0058] 241 directional valve
[0059] 2411 first switching position
[0060] 2412 second switching position
[0061] 3 pump
[0062] 31 “flush” button; “clean / hydrate” button
[0063] 32 display
[0064] 4 three-way stopcock
[0065] 5 tube
[0066] 6 syringe
[0067] S1 selecting output from first compartment
[0068] S2 starting pump
[0069] S3 stopping pump
[0070] S4 selecting output from second compartment
[0071] S5 starting pump in flush mode
[0072] S6 disconnecting connected line
Claims
Claims1 . A medical bag (2), wherein the medical bag (2) comprises a first compartment (21) and a second compartment (22) for a first and a second fluid, respectively, and an output port (23) for connecting the medical bag (2) to a connected line (1), characterized in that the first compartment (21) and the second compartment (22) are sealed with respect to each other and the output port (23) comprises a selector (24) for selecting between a fluid output from the first compartment (21) through the output port (23) or a fluid output from the second compartment (22) through the output port (23).
2. The medical bag (2) according to claim 1 , characterized in that the first compartment (21) comprises a first fluid and the second compartment (22) comprises a second fluid.
3. The medical bag (2) according to claim 2, characterized in that the first fluid is a nutritional fluid.
4. The medical bag (2) according to claims 2 or 3, characterized in that the second fluid is a hydration fluid and / or a fluid for cleaning a connected line (1), for example water.
5. The medical bag (2) according to any of the preceding claims, characterized in that the volume of the first compartment (21) is larger than the volume of the second compartment (22).
6. The medical bag (2) according to any of the preceding claims, characterized in that the selector (24) comprises a directional valve which, in a first switching position, connects the first compartment (21) to the output port (23) and which, in a second switching position, connects the second compartment (22) to the output port (23).
7. The medical bag (2) according to claim 6, characterized in that the directional valve is a manual valve to be manually actuated.
8. The medical bag (2) according to claim 6, characterized in that the directional valve is an automated valve to be actuated by a motor.
9. The medical bag (2) according to claims 6 to 8, characterized in that the bag comprises a position sensor for determining whether the selector is in a first or secondmode and / or the directional valve is in the first switching position or in the second switching position.
10. The medical bag (2) according to any of the preceding claims, characterized in that the output port (23) is the only output port (23) of the medical bag (2).
11. The medical bag (2) according to any of the preceding claims, characterized in that the output port (23) is configured to be connected to a line (1) comprising a pump (3) and a tube (5).
12. The medical bag (2) according to any of the preceding claims, characterized in that the medical bag (2) is a medical bag (2) for use in enteral nutrition.
13. A method for flushing a line (1) using a medical bag (2) according to one of the preceding claims, wherein the medical bag (2) is connected to a line (1) with a pump (3) and a tube (5) via the output port (23), characterized in that the method comprises: using the selector (24), selecting a fluid output from the first compartment (21) through the output port (23) into the connected line (1) in order to provide a first fluid in the connected line (1); and using the selector (24), selecting a fluid output from the second compartment (22) through the output port (23) into the connected line (1) in order to provide a second fluid in the connected line (1) and / or in order to clean the connected line (1) using the second fluid.
14. Pump (3) for connection with a medical bag (2) according to claims 1 to 12, characterized in that the pump (3) is configured to provide a first pump mode for, wherein the first pump mode comprises settings for a volume and a flow rate to be applied when pumping from the first compartment (22) of the medical bag (2) into the connected line (1).
15. Pump (3) according to claim 14, characterized in that the pump (3) is configured to provide a second pump mode for hydrating a patient, wherein the second pump mode comprises settings for a volume and a flow rate to be applied when pumping from the second compartment (22) of the medical bag (2) into the connected line (1).