Liquid media dispenser container with transceiver element

Abstract

The present invention relates to a dispenser container for liquid media, in particular for disinfectants, comprising a container body for receiving the liquid medium and a container head. The container head includes a section that is stationary during use of the dispenser container and also has an element that is movable during use of the dispenser container. The movable element can assume at least a first and a second position. A first transmitter-receiver element is provided on the stationary section of the container head or on the movable element. Electrically conductive material, which can shield an electromagnetic signal, is provided on the movable element and / or the stationary section.In this case, the electrically conductive material does not shield the first transmitter-receiver element when the movable element assumes the first position, so that the first transmitter-receiver element can communicate with a second transmitter-receiver element, whereas the electrically conductive material shields the first transmitter-receiver element from the electromagnetic signal when the movable element assumes the second position, so that the first transmitter-receiver element cannot communicate with the second transmitter-receiver element.

Description

[0001] The present invention relates to a dispenser container for liquid media, in particular for disinfectants, comprising a container body for receiving the liquid medium and a container head.

[0002] Furthermore, the invention relates to a system comprising at least one dispenser container and an evaluation unit, as well as a method for monitoring a dispenser container.

[0003] In the area of ​​hospital hygiene, proper hand disinfection is the single most important measure for interrupting the transmission of pathogens and thus serves not only to protect employees but also, and especially, patients. This also applies to other healthcare facilities, such as rehabilitation facilities, outpatient medical facilities, medical centers, retirement homes, and nursing homes.

[0004] Monitoring, or the surveillance of hand hygiene compliance, has played an increasingly important role in recent years. On the one hand, monitoring can determine the status quo of hand hygiene quality, which has become increasingly important in hospital quality management in recent years. On the other hand, feedback based on monitoring is intended to achieve lasting behavioral change toward correct hand disinfection, thus protecting patients from avoidable complications caused by antibiotic-sensitive and antibiotic-resistant germs.

[0005] The basis for hand hygiene monitoring is the observation of individual hand disinfections. This requires the most complete recording possible of all hand disinfections. Hand disinfections can be performed using stationary dispensers. Staff, especially medical personnel, often carry so-called lab coat bottles from which they can dispense hand disinfectant solution. Hand disinfections performed using stationary dispensers, as well as lab coat bottles, should be detected and recorded centrally for a department or for the entire hospital / care facility.

[0006] Stationary disinfectant dispensers with counters are known from the prior art. These dispensers comprise a container body and a pump or conveying device. The disinfectant dispensers are mounted at specific locations in the hospital or care facility. When the dispenser is activated, the disinfection process is detected and a counter is incremented.

[0007] US2021 / 259483 A1 discloses a pump dispenser, e.g., for disinfectant, in which a sensor detects pumping operations and thus determines the amount of liquid used. A wireless communication device can transmit a signal to the system that the pump dispenser needs refilling.

[0008] DE102020105101 A1 describes a system and method for monitoring the use of lab coat bottles. However, this system uses an electronic counting unit to count the number of times the bottle is used.

[0009] EP 1 913 892 B1 discloses a system that allows a person to monitor hand hygiene compliance. The system includes a data reader that can be worn by the person, an entry trigger located at each doorway of a room, which can activate the reader to record an entry event when the person enters the room, and a dispenser trigger located at each cleaning agent dispenser.

[0010] The dispenser is located in the room or at the entrance to the room, wherein the dispenser trigger can activate the reader to record a dispensing event when the person causes the dispenser to dispense cleaning agent, wherein the reader has a display device capable of displaying a number of dispensing events and a number of entry events.

[0011] DE 10 2012 105 368 A1 discloses a system for monitoring the use of hygiene devices. A wearable identification device is to be worn by a user, wherein the wearable identification device comprises a means for storing at least one unique piece of information that allows identification of the wearable identification device. A hygiene device has a dispenser configured to dispense a disinfectant to a user and a device control means coupled to the hygiene device.

[0012] The portable identification device includes a first capacitive coupling device coupled to the first receiving device for receiving electromagnetic signals via the first coupling device. The first receiving device is coupled to the control device to establish an electrical capacitive coupling between the control device and the user's body.

[0013] The device control means is coupled to a first transmitting means, and the first transmitting means is coupled to a second capacitive coupling means to establish an electrical capacitive coupling between the body of a user and the device control means.

[0014] Such systems for monitoring hand hygiene compliance are typically used to monitor the use of stationary, i.e., permanently installed or standing disinfectant dispensers. These disinfectant dispensers are attached or placed at specific locations in the hospital or care facility. The hand hygiene compliance of medical professionals or nursing staff who use lab coat bottles for hand disinfection instead of disinfectant dispensers is often not recorded by conventional methods.

[0015] The task is therefore to monitor the use of, for example, hand disinfectants in facilities subject to special hygiene requirements, such as hospitals, doctor's offices, or nursing homes. In particular, the object of the present invention is to record the use of disinfectants, especially hand disinfectants, taking into account all types of dispensers available in the facility, i.e., including mobile dispenser containers.

[0016] The object is achieved by a dispenser container for liquid media according to claim 1. The dispenser container for liquid medium, in particular for disinfectant, comprises a container body for holding a liquid medium and a container head. The container head has a stationary section when the dispenser container is in use and an element that is movable when the dispenser container is in use. The movable element can be, for example, a lid of a lab coat bottle or a movable component of a pump. The movable element can assume at least a first and a second position. A first transceiver element is present on the stationary section of the container head or on the movable element. An electrically conductive material that can shield or attenuate an electromagnetic signal is present on the movable element and / or the stationary section.

[0017] The state of the dispenser container according to the invention can be determined by the method according to claim 12 comprising the steps: Activating the second transceiver element so that the second transceiver element builds up an electromagnetic field which can interact with the first transceiver element if the movable element is in the first position, and detecting the position of the movable element based on the resulting interaction with the first transceiver element be monitored.

[0018] The first and second positions of the movable element correspond to a closed or open state of the dispenser container. If the first and second transceiver elements can connect, i.e., communicate with each other, the movable element is in the first position.

[0019] Furthermore, the invention relates to a system according to claim 10. In addition to the claimed dispenser container, the system comprises an evaluation unit, wherein the evaluation unit comprises the second transceiver element and a processor. The processor is configured to activate the second transceiver element so that the second transceiver element creates an electromagnetic field that can interact with the first transceiver element if the movable element is in the first position. Furthermore, the processor is configured to detect the position of the movable element based on the resulting interaction with the first transceiver element.

[0020] In one embodiment, the system comprises more than one dispenser container according to the invention. The dispenser containers can be portable containers, for example, lab coat bottles, and / or stationary disinfectant dispensers. The system according to the invention has the advantage that both the first transceiver element of a portable dispenser container and the first transceiver element of a stationary disinfectant dispenser can communicate with the same second transceiver element when the movable element is in the first position.

[0021] In a preferred embodiment, the container head is a snap-hinged closure. The snap-hinged closure comprises a stationary section and a movable element. The stationary section has a lower part with a circumferential outer wall, which preferably has an internal screw thread. The movable element is a lid, which is connected to the outer wall of the lower part via a snap hinge.

[0022] According to a preferred embodiment, the state of the movable element can be correlated with the opening state of a dispensing container, for example a mobile container, in particular a lab coat bottle. In a mobile container, the opening of a snap-hinged closure present on the container head can thus be detected remotely. In this example, the movable element is the lid of the snap-hinged closure, on the inside of which the first transceiver element is attached. The electrically conductive material is applied to both the lid and the stationary section of the container head in such a way that, when the lid is closed, it forms a cavity completely enclosing the first transceiver element. The transceiver element is then shielded. Instead of applying the electrically conductive material, the lid and / or the stationary section can be made of the electrically conductive material.When the lid is closed, the movable element is in its second position and cannot communicate with a second transceiver element. When the lid is opened, the movable element assumes its first position, in which the first transceiver element, which was previously completely located in a cavity, is released from this shielding cavity. The first transceiver element can then communicate with the second transceiver element. Based on the resulting communication, the opening of the snap hinge closure can be detected from a distance. Since the opening of the snap hinge closure, for example in the case of a lab coat bottle containing hand disinfectant, is usually accompanied by the use of the disinfectant for hand disinfection, the invention is suitable for monitoring the use of disinfectants.

[0023] In a further preferred embodiment, the container head comprises a pumping or conveying device, in particular for liquid disinfectants. The container head comprises the movable element, which has a pump piston and a tubular liquid line connected thereto. The container head also has a stationary section, which comprises a pump cylinder, wherein the pump cylinder partially encloses the pump piston and the liquid line along a longitudinal axis of the pump piston. An upper part of the pump piston is exposed when the pump is not actuated and is at least partially pushed into the pump cylinder when the pump is actuated.

[0024] According to a further preferred embodiment, the state of the movable element can be correlated with the actuation of a pump, which is present in particular on a stationary container. According to a first variant of this embodiment, the first transceiver element can be attached to the pump in such a way that it is shielded by the electrically conductive material when the pump is not actuated (the movable element is then in the second position), while the shielding is removed when the pump is actuated (the movable element is then in the first position). Likewise, according to a further variant of this embodiment, it is possible to attach the first transceiver element to the pump in such a way that it is not shielded by the electrically conductive material when the pump is not actuated (the movable element is then in the first position).When the pump is actuated, the shielding can then be present so that actuation of the pump leads to an interruption in communication between the first and second transceiver elements and can thus be detected (the movable element is then in the second position). This can be achieved, for example, by attaching the first transceiver element to the movable element of the container head, which can be a piston rod of a pump. The electrically conductive material is attached to the immovable section of the pump, for example to the pump cylinder partially surrounding the piston rod, so that a shielded area is present within a section of the pump cylinder. When the pump is actuated, the initially exposed first transceiver element is pushed into this shielded area.

[0025] The claimed dispenser containers, which in the context of the present invention can be both mobile and stationary devices, can therefore be used, for example, in hospitals or care facilities, in particular to record the frequency of disinfectant use. For this purpose, radio devices, referred to in the context of the invention as second transceiver elements, must be present at suitable locations or rooms within the facilities. These radio devices are preferably connected to a central computer, which can then determine the so-called "hand hygiene compliance" for the entire facility.

[0026] To remotely monitor the status of the movable element, the first transceiver element must be within range of the second transceiver element when the second transceiver element is activated. If the first transceiver element is out of range of the second transceiver element, no conclusions can be drawn about the status of the movable element.

[0027] The second transceiver element is therefore preferably a component of a portable receiving device, which can be part of the evaluation unit. The receiving device can comprise a power source, a second processor, a working memory, a data storage device, and a data connection. Data on the position of the movable element and thus the state of the closure are preferably forwarded from the receiving device to a data receiver via the data connection. The transmission of the data on the state of the closure is preferably wireless. However, it is also possible to provide a docking functionality between the receiving device and a docking station, which acts as a data receiver to transmit the data recorded in the receiving device when the receiving device is inserted into the docking station.

[0028] The data received at the data receiver regarding the status of the movable element can then be transmitted to a data processing device via another data connection. The data processing device can be a server or a cloud server. The data processing device can be connected to an output device. The data regarding the status of the movable element, and thus, for example, the opening status of a closure or lid or the actuation of a pump, can be displayed on the output device. Variables derived from the data regarding the status of the movable element, such as warnings, predictions, or statistics regarding hand hygiene compliance, can also be displayed on the output device.

[0029] In a preferred embodiment, the output device and the receiving device are both components of a mobile device. This mobile device can be a smartphone.

[0030] The first transceiver element is preferably a passive transceiver element. Passive transceiver elements do not have an integrated power source; instead, they are powered by an interrogation signal. Particularly preferably, the first transceiver element is an RFID transponder. The RFID transponder is preferably a passive RFID transponder, which is powered by the electromagnetic field that can be generated by the second transceiver element.

[0031] In a preferred embodiment, if the movable element is in the first position and the first transceiver element can communicate with a second transceiver element, an identification number is transmitted from the first transceiver element to the second transceiver element. This has the advantage of allowing unambiguous identification of the use of the individual dispenser container.

[0032] Preferably, the second transceiver element is an NFC device. The NFC device can be, for example, a smartphone.

[0033] In a preferred embodiment, the container head is at least partially coated with the electrically conductive material.

[0034] If the container head is a snap-hinge closure, the side of the immovable section facing away from the interior of the bottle body when the container head is applied to the bottle can preferably be coated with the electrically conductive material. The movable element is the lid, which is connected via the snap hinge to the immovable section, which comprises a lower part with a circumferential jacket wall. One side of the lid can also be coated. The coated sides of the lid and the immovable section form the hollow body. The first transceiver element is preferably applied to the lid. The first transceiver element is then, when the container head is closed, enclosed by the electrically conductive material on the lid and immovable section.

[0035] If the container head comprises a pumping or conveying device, the stationary section, in particular the pump cylinder, can preferably be coated with the electrically conductive material. The first transceiver element is preferably applied to the side of the movable element or inserted into a recess in the movable element. The movable element comprises the pump piston and the tubular fluid line connected thereto. The first transceiver element is preferably applied to the pump piston or inserted into a recess in the pump piston. In the closed state, the transceiver element is not enclosed by electrically conductive material, and the first transceiver element can communicate with the second transceiver element.

[0036] When the pump is activated, the movable element is displaced toward the stationary section, so that the first transceiver element is enclosed by the electrically conductive material of the pump cylinder. The first transceiver element and the second transceiver element are then shielded from each other.

[0037] The electrically conductive material, which can shield an electromagnetic signal, is present on the movable element and / or on the immovable section of the container head. The electrically conductive material can be present in a grid-like coating. Preferably, the coating forms a substantially continuous surface. In a preferred embodiment, the electrically conductive material is copper, silver, iron, aluminum, gold, tungsten, or an alloy containing one or more of the aforementioned metals. The electrically conductive material can comprise an intrinsically electrically conductive polymer, for example, polyaniline. The electrically conductive material can also be an inherently non-electrically conductive polymer, in particular a plastic, which is electrically conductive due to the incorporation of conductive fillers (so-called extrinsically conductive polymer).

[0038] In a preferred embodiment, the system and method described above can be used to determine the state of the movable element. For this purpose, the steps of the method are repeated several times at intervals from the measurement times. ti The second transceiver element is activated, so that the second transceiver element builds up an electromagnetic field. If the movable element is in the first position, the second transceiver element receives a signal from the first transceiver element. A measurement series consists of pairs of values ​​( ti , fi ) from measurement time ti and condition of the closure at the time of measurement fi . The preferred value is fi binary, where the value of fi represents a first position of the movable element or a second position of the movable element. In an alternative embodiment, the value fibe a continuous value. In the alternative embodiment, a limit is set that defines the range of values ​​from fi divided into two parts representing the first and second positions of the movable element.

[0039] Preferably, the steps of the method are performed multiple times at monitoring intervals. Preferably, the second transceiver element is activated at periodic monitoring intervals to detect the state of the movable element. The monitoring intervals can be at least 10 ms, more preferably at least 100 ms, particularly preferably at least 500 ms, and in particular at least 1 s.

[0040] In a preferred embodiment, at least two consecutive states of the container are detected in order to determine at least one state transition between the closed and the open state. Preferably, an opening process is detected based on two consecutive state transitions, which must be different types of state transitions.

[0041] In a preferred embodiment, the number of opening operations is counted during a monitoring period. The monitoring period preferably lasts 24 hours.

[0042] Preferably, the opening operations are counted over a monitoring period. The monitoring period is preferably 24 hours long. Illustrations

[0043] Figure 1: Schematic representation of the dispenser container in the embodiment as a snap-hinged closure with an electrically conductive coating. 1a shows the closed container, where communication between the transceiver elements is not possible due to the shielding. 1b shows the opened container, where communication between the transceiver elements is possible.

[0044] Figure 2 : Schematic representation of the dispenser container in the form of a snap-hinged closure with a lid made of an electrically conductive material.

[0045] Figure 3 : Schematic representation of the dispenser container with liquid pump. Figure 3a Figure 3b shows the container in the state in which the transceiver elements can communicate with each other. Figure 3b shows the state in which communication between the first and second transceiver elements is interrupted.

[0046] Figure 4: Schematic representation of the dispenser container with liquid pump in an alternative embodiment.

[0047] Figure 5 : Exemplary schematic representation of the method for monitoring the dispenser container according to the invention

[0048] Figures 1 and 2 are schematic representations of a dispensing container 100 with a container body 101 and a container head 200. The container head 200, which in the embodiment shown is designed as a snap-in hinge closure, comprises a stationary section 201 and a lid 203 firmly connected to the stationary section, which can be opened to remove the liquid medium. The stationary section 201 has a lower part with a circumferential jacket wall, which preferably has an internal screw thread.

[0049] The container body 101, which holds the liquid medium, in particular a disinfectant, is only partially shown in the figures. The container body 101 typically holds liquid quantities in the range of 20 ml to 1000 ml. Smaller containers 101, which are filled with, for example, 20 ml to 50 ml, are also referred to as lab coat bottles. Lab coat bottles typically contain hand disinfectant.

[0050] The dispenser container 100 is closed in Figures 1a and 2a and in the Figures 1b and 2b open.

[0051] In the embodiment shown in Figures 1a and 1b, the first transceiver element 202 is attached to the inside of the lid 101. The first transceiver element 202 is an RFID chip, which is preferably welded into a material that is resistant to the liquid contained in the container 101, for example, an alcoholic composition.

[0052] The container head 200 is coated with the electrically conductive material on the inside of the lid 203 and on the upper surface of the stationary section 201. The coating of electrically conductive material is indicated by the hatching.

[0053] On its outside, the cover 203 is not coated with the conductive material in the embodiment shown here. When the cover is closed, as in Figure 1a As shown, the coating forms a cavity in the space formed between the cover 203 and the immovable section 201, which shields the first transceiver element 202 mounted on the inside of the cover 203 from electromagnetic radiation 400.

[0054] When the lid 203 is open, the RFID chip 202 mounted on the inside of the lid can interact with the electromagnetic field 400 generated by a second transceiver element. When the lid 203 is open, the lid 203, which is the movable element 203, assumes the first position, whereby the first transceiver element 202 (RFID chip) can then communicate with the second transceiver element 300. When the lid 203 is closed, as shown in Figure 1a As shown, such communication is not possible due to the shielding caused by the electrically conductive material.

[0055] The second transceiver element 300 can be part of an evaluation unit, which further comprises a processor (not shown in the figure).

[0056] Figures 2a and 2b show a further embodiment of the invention, which essentially corresponds to that shown in Figure 1Instead of coating with an electrically conductive material, as in Figure 1 However, as shown, the container head 200 is made entirely of electrically conductive material 203.

[0057] Figures 3 and 4 show an embodiment in which the container head 200 is designed as a liquid pump. The container body is not shown in Figures 3 and 4. Such liquid pumps, which are typically piston pumps, are used particularly in stationary disinfectant dispensers. These can be manually operated pumps or pumps driven by an electric motor.

[0058] The container head 200 comprises a pumping or conveying device, in particular for liquid disinfectants. The container head 200 thus comprises a movable element, which has a pump piston 211 and a tubular liquid line 213 connected thereto. The container head 200 also has a stationary section 212, which comprises a pump cylinder, wherein the pump cylinder partially encloses the pump piston 211 and the liquid line 213 along a longitudinal axis of the pump piston 211. An upper part of the pump piston 211 is exposed when the pump is not actuated and is at least partially inserted into the pump cylinder when the pump is actuated, as shown in Figure 3b The pump is actuated, for example, by applying a downward force F by means of an actuating element 210, so that the pump piston is pushed into the pump cylinder ( Figure 3b ).

[0059] The electrically conductive material is attached to the immobile section 212 of the pump, namely to the pump cylinder partially surrounding the piston rod, so that a shielded area is present within a section of the pump cylinder. In this embodiment, the first transceiver element 202, in particular an RFID chip, is attached to a region of the pump piston 211, which is partially pushed into the pump cylinder 212 when the pump is actuated and thus enters the shielded area. The movable element 211 then assumes its second position, so that the first transceiver element 202 can no longer communicate with the second transceiver element 300. Without actuation of the pump, the first transceiver element 202 is outside the shield and can therefore communicate with the second transceiver element 300 (first position).The shielding by the conductive material is thus located on a stationary portion 212 of the container head and the first transceiver element 202 is mounted on the movable element 211.

[0060] At the Figure 4 In the embodiment of a pump for disinfectant shown, the cylindrically shaped immovable section 201 of the container head 200 (shown in Figure 4only a section of the container head) is made of an electrically conductive material or contains a corresponding coating of such a material, so that the space within the pump cylinder 201 is shielded from electromagnetic signals. The immovable section 201 has a recess 215 which interrupts the shielding. The first transceiver element 202 is located outside this recess 215 when the pump is at rest and thus assumes its second position. When the pump is actuated, the first transceiver element 202, together with the pump piston 211, is displaced into the area of ​​the recess 215 that is not shielded from electromagnetic signals 400 and can then communicate with the second transceiver element 300 ( Figure 4b ).

[0061] Figure 5 shows an exemplary schematic representation of the process.

[0062] The steps of the procedure are repeated several times at each measurement time ti executed. The second transceiver element is activated, so that the second transceiver element creates an electromagnetic field. If the movable element is in the first position, the second transceiver element receives a signal from the first transceiver element.

[0063] At a measurement point, here t 3 , the second transceiver element is activated so that the second transceiver element builds up an electromagnetic field (step 501). fi is binary and can take the values ​​0 and 1. The movable element is in the first position (pos 1), and it is f 3 is assigned the value 1. If the movable element were in the second position (pos 2), f 3 is assigned the value 0.

[0064] A series of measurements is made up of pairs of values ​​( ti , fi) is formed. A state transition between open and closed state is a change of fi from 0 to 1 or from 1 to 0. In the given example, a state transition from 0 to 1 (502a) and a subsequent state transition from 1 to 0 (502b) are detected. Between the state transitions (502a, 502b), the system is in state 1 or pos 1. The dispenser container can be open during this time.

[0065] Since the state transitions are different, they can detect an opening process and a counter that counts the number of opening processes during a monitoring period is increased.

Claims

1. Dispenser container (100) for liquid media, in particular for disinfectant, comprising a container body (101) for receiving the liquid medium and a container head (200), which has a portion which is immovable during the use of the dispenser container and an element which is movable during the use of the dispenser container, wherein the movable element can assume at least a first position and a second position, characterized in that on the immovable portion of the container head (200) or on the movable element there is a first transceiver element (202) and in that on the movable element and / or the immovable portion there is an electrically conducting material (203), which can shield an electromagnetic signal - wherein the electrically conducting material does not shield the first transceiver element (202) when the movable element assumes the first position, so that the first transceiver element can communicate with a second transceiver element (302), - and wherein the electrically conducting material (203) shields the first transceiver element (202) from the electromagnetic signal when the movable element assumes the second position, so that the first transceiver element cannot communicate with the second transceiver element (302).

2. Dispenser container according to Claim 1, wherein, when the movable element assumes the second position, the electromagnetic shielding is produced by the electrically conducting material (203) forming a hollow body which encloses or at least partially encloses the first transceiver element (202).

3. Dispenser container according to Claim 1 or 2, wherein the container head (200) is designed such that it can be removed from the container body (101).

4. Dispenser container according to at least one of the preceding claims, wherein the movable element and / or the immovable portion is coated, at least in some portions, with the electrically conducting material (203).

5. Dispenser container according to one of Claims 1 to 3, wherein the movable element and / or the immovable portion consists completely of the electrically conducting material (203).

6. Dispenser container according to at least one of the preceding claims, wherein the electrically conducting material (203) contains copper, silver, iron, aluminium, gold, tungsten or an alloy containing one or more of the preceding metals, and / or wherein the electrically conducting material comprises an electrically conducting polymer.

7. Dispenser container according to at least one of the preceding claims, wherein the first transceiver element (202) is an RFID transponder.

8. Dispenser container according to at least one of the preceding claims, wherein the container head is a snap hinge closure, comprising the immovable portion, which has a lower part with a peripheral casing wall, and the movable element, which has a cover connected to the casing wall of the lower part by way of a snap hinge, wherein the casing wall preferably has an internal screw thread, characterized in that on the immovable portion of the container head (200) or on the movable element there is a first transceiver element (202) and in that on the movable element and the immovable portion there is an electrically conducting material (203), which can shield an electromagnetic signal - wherein the electrically conducting material does not shield the first transceiver element (202) when the movable element assumes the first position, so that the first transceiver element can communicate with a second transceiver element (302), where the first position corresponds to an open state of the container head, - and wherein the electrically conducting material (203) shields the first transceiver element (202) from the electromagnetic signal when the movable element assumes the second position, so that the first transceiver element cannot communicate with the second transceiver element (302), where the second position corresponds to a closed state of the container head.

9. Dispenser container according to one of Claims 1 to 7, wherein the container head comprises a pumping device or delivery device, wherein the container head comprises the immovable portion, which has a pump cylinder, and the movable element, which has a pump piston and a tubular liquid line connected thereto, wherein the pump cylinder partially encloses the piston and the liquid line along a longitudinal axis of the pump piston, characterized in that on the movable element there is a first transceiver element (202) and in that on the immovable portion there is an electrically conducting material (203), which can shield an electromagnetic signal - wherein the electrically conducting material does not shield the first transceiver element (202) when the movable element assumes the first position, so that the first transceiver element can communicate with a second transceiver element (302), - and wherein the electrically conducting material (203) shields the first transceiver element (202) from the electromagnetic signal when the movable element assumes the second position, so that the first transceiver element cannot communicate with the second transceiver element (302), wherein the first transceiver element is at least partially pushed into the pump cylinder.

10. System comprising at least one dispenser container (100) according to Claim 1 and an evaluation unit (300), wherein the evaluation unit (300) comprises the second transceiver element (302) and a processor (301), wherein the processor is configured to activate the second transceiver element (302), so that the second transceiver element (302) builds up an electromagnetic field (400) which can interact with the first transceiver element (202) if the movable element is in the first position in order to detect the position of the movable element on the basis of the interaction occurring.

11. System according to Claim 10 comprising at least one dispenser container (100) according to Claim 8 and at least one dispenser container according to Claim 9.

12. Method for monitoring a dispenser container according to at least one of Claims 1 to 9, comprising the following steps: - activating the second transceiver element (302), so that the second transceiver element (302) builds up an electromagnetic field (400) which can interact with the first transceiver element (202) if the movable element is in the first position and - detecting the position of the movable element (200) on the basis of the interaction occurring with the first transceiver element (202).

13. Method according to Claim 12, wherein the steps of the method of Claim 12 are performed a number of times at monitoring time intervals and wherein at least two successive states of the container are detected and wherein at least one state transition between the closed state and the open state is established in order to detect an opening operation.

14. Method according to Claim 12 or 13, wherein a number of the opening operations in a monitoring period is counted.

15. Method according to one of Claims 12 to 14, wherein the monitoring period has a length of 24 hours.

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