WO2018224520A1

WO2018224520A1 - Dispensing system for liquid media

Info

Publication number: WO2018224520A1
Application number: PCT/EP2018/064819
Authority: WO
Inventors: Wolfgang NEUMANN DR.
Original assignee: Paul Hartmann Ag
Priority date: 2017-06-09
Filing date: 2018-06-06
Publication date: 2018-12-13
Also published as: DE102017112729A1; EP3634190A1; EP3634190B1

Abstract

The present invention describes a dispensing system for liquid media having an exchangeable container on which an activation code is provided, a housing, a delivery mechanism and an electronic control unit for the delivery mechanism. The dispensing system further comprises an electronic detector that can identify the activation code provided on the container. The electronic control unit comprises a lock that causes the delivery mechanism to be able to be activated only when a permitted activation code has been identified on the container by means of the detector. The dispensing system also has an interface that is suitable for inputting a release code. Inputting the release code causes the lock to be deactivated.

Description

Dispenser system for liquid media

description

The invention relates to a dispensing system for liquid media, in particular for disinfectants, for example on an alcoholic basis, wherein the

Dispenser system has a locking mechanism, which should prevent the use of the dispenser system with non-dedicated media containers.

Liquid media dispensing systems typically comprise a housing, a replaceable container in which the medium is provided, and a dispensing mechanism adapted to supply the medium present in the container to a user. In the electrically powered dispensing systems discussed in the present invention, there is often additional electronic control which can control the delivery of the liquid medium and optionally perform additional functions. Both

additional functions include, for example, activation of the dispensing mechanism upon approach, counters, detection of the level of the container, or recognition of a container authorized by the manufacturer. The additional features often require the use of a

Sensor component.

Such dispenser systems are used, for example, in hospitals, in

Medical practices or in publicly accessible areas such as hotels or rest areas.

A dispensing system other than the container component will be referred to as a "dispenser" hereinafter. The term "dispensing mechanism" is intended to mean a device which makes it possible to provide a substantially reproducible deliverable amount of a liquid medium on demand, the dispensing mechanism comprising portions which contact the liquid medium and those which are not in contact The dispensing mechanism can be completely integrated in the housing

Components of the dispensing mechanism to be detachably or permanently connected to the container, while other components of the dispensing mechanism are integrated into the dispenser.

For hygienic reasons, dispensing systems intended for use in safety-critical environments, such as hospitals, have found it advantageous to dispose of the media-contacting components of the dispensing mechanism with the container in common.

The dispensing mechanism includes in the electrical described herein

Dispenser systems an electrically driven pumping mechanism or an electrically controlled valve mechanism, possibly also a combination of pumping mechanism and valve mechanism. A dispensing mechanism with one or more valves is preferably used in such systems where the container is held "upside down" in the housing, the medium being able to flow out of the container in gravity following such systems. Namely, containers inserted into such dispensers are formed essentially in two variants, namely, such that the dispensing opening in the use position is arranged at the top of the container or, alternatively, that the dispensing opening is in the use position at the bottom is arranged on the container.

The dispensing mechanism is activated either by manual operation, for example by depressing a lever, or without contact. A

Non-contact activation, which requires an electrically driven pump or electrically actuated valve can, for example by a

Proximity sensor or be communicated by an optical sensor.

Dispenser systems of the type described above are known in the art and may for example be provided freestanding or on Fixing surfaces, such as walls or brackets, be fixed, in particular releasably be fixed.

For safety reasons, it is advantageous if the dispenser systems can only be used with the containers authorized by the manufacturer and thus with the media provided for the application. This object has been achieved in the prior art, in particular by systems which enable the activation of the

Allow dispensing mechanism only if an authorized for use in each dispenser container is present in the housing. Recognition of the manufacturer-authorized container may be on a mechanical fit, such as a key-to-lock interaction between the container and the housing. Such a fit may optionally be disabled or mimicked by non-proprietary products. Greater certainty in preventing use of the dispenser system with unauthorized containers is provided by coding systems that have an activation code on the container that can be detected by a device-side detector.

A corresponding device is for example in EP1671568B1

described. In the dispenser system of EP1671568B1, an electronic key is provided on the refill container provided by the manufacturer, which can be read and evaluated by a dispenser-side detection mechanism. The communication between the electronic key and the

The detection mechanism is based on Near Field Communication (NFC) using a transmitter and receiver on the dispenser, using NFC transmission technology based on Radio Frequency Identification (RFID) technology. The electronic control of the donor gives the

Dispensing mechanism free only when a matching key has been recognized on the container.

A detection of a manufacturer provided refill container under

Use of the RFID transmission is also described in US 2016278583.

EP2734096B1 discloses a dispensing system in which the refill container provided by the manufacturer for the filling can be optically recognized by means of microscopic markings attached to the container. An optical recognition of a manufacturer-authorized container in the infrared range is described in WO201 1/130158. The marking is, in particular, microparticles admixed with the container material, which emit a detectable signal which is specific for the marker substance upon infrared exposure. The dispenser has an infrared source and an infrared detector.

The disadvantage of such encoded container systems is that the in

In the case of a medical emergency situation, for example in the case of a pandemic, existing donors can be used exclusively with the refill containers supplied by the manufacturer. If, in such an emergency situation, the manufacturer does not supply sufficient quantities

Refill containers are those in the health care facilities

existing donor no longer usable. In particular, the

Unavailability of ready-to-use disinfectant donors in the event of a pandemic make it more difficult to effectively combat the spread of the infectious disease in an unacceptable manner.

The object of the present invention is therefore to overcome disadvantages in the dispenser systems described in the prior art and improved and flexible dispensing systems for liquid media, in particular for

Disinfectants, ready to put.

The present invention solves the problem by a dispensing system for liquid media, in particular for disinfectants, according to claim 1, and by a method for deactivating a barrier in a dispenser for liquid media, in particular for disinfectants.

The dispenser system according to the invention comprises an exchangeable container in which the medium is provided, wherein an activation code is present on the container. Furthermore, the dispensing system comprises a housing which can receive the container, a power supply, as well as a

Dispensing mechanism, which is adapted to supply the medium present in the container to a user. Furthermore, the dispensing system includes an electronic detector that softens the existing on the container

Activation code can recognize, as well as an electronic control for the Abgabemechanisnnus. The controller has a lock which causes the dispensing mechanism to be activated only when an allowable activation code has been detected on the container by means of the detector. The dispensing system is particularly characterized over the prior art in that the electronic control has at least one interface adapted to input a release code, the entry of the release code causing the lock to be deactivated.

According to the invention, the lock can thus also be "unlocked" by a user for unauthorized containers if the user is provided with a corresponding release code To overcome the lock, the user can enter the release code by means of the at least one interface be loaded with all refill containers, insofar as these

fit geometrically into the dispenser.

The invention provides an incentive for manufacturers to develop standardized dispenser systems with respect to the compatibility of the refill containers, as they do not have to fear that the dispensers delivered to the customers will normally be used with refill containers supplied by competitors. At the same time the public interest in an unlimited compatibility of

Dispensers and refill containers from different manufacturers (for example) in the event of a pandemic.

In the context of the invention, a replaceable container, adapted for use in a later characterized in detail dispenser for liquid media, in particular for disinfectants, is also proposed, wherein an activation code is present on the container. The dispenser provided in connection with the container comprises a housing which can receive the container, a power supply, a dispensing mechanism which is suitable for supplying the medium present in the container to a user, an electronic detector, which is provided on the container

Can recognize activation code, and an electronic control for the

Dispensing mechanism, wherein the controller has a lock, which causes the dispensing mechanism can only be activated when using the Detector a valid activation code was recognized on the container. Furthermore, the dispenser is characterized by the fact that the electronic control

has at least one interface which is adapted to enter a release code, wherein the input of the release code causes the lock is disabled.

The dispenser system according to the invention therefore permits a deactivation of the above-described lock (hereinafter also referred to as "foreign filling lock") in that the manufacturer provides a release code to the user, for example a health care institution The manufacturer may thus allow the user to use the dispenser even with refill containers that have not been authorized by the manufacturer In practice, such "disengagement" of the dispensers by the manufacturer will be particularly in a medical emergency such as a pandemic. It would also be conceivable that the provision of the activation code can be purchased from the manufacturer of the dispenser. For activation, the user applies the proposed in connection with the invention method for disabling a lock. The method comprises the steps of: i) providing a dispenser comprising a housing capable of receiving a container, a power supply, a dispensing mechanism adapted to supply the medium present in the container to a user, an electronic detector which detects a dispenser Containers available

Can recognize activation code, and an electronic control for the

A dispensing mechanism, wherein the controller has a lock that causes the dispensing mechanism to be activated only when an allowable activation code on the container has been detected by the detector, and wherein the electronic controller has at least one interface suitable for enabling code enter. ii) providing a release code, wherein the release code is provided in particular by the manufacturer of the dispenser. The code can be provided to the user in particular by the manufacturer by electronic transmission. iii) entering the release code, in particular by the user of the dispenser, using the at least one interface, wherein the entry of the

Release codes causes the lock to be disabled. iv) If necessary, the dispenser can now be filled with a container without an activation code. v) Optionally, the lock can be reactivated at a later time by entering a wakeup code using the at least one interface.

It would also be conceivable that the reactivation of the lock automatically,

for example, after a preset period of time, takes place.

According to the invention, the dispenser system thus comprises a container

Activation code, a housing, a power supply, a dispensing mechanism, an electronic detector, an electronic control for the

Dispensing mechanism and at least one interface for entering the

Release code. Optionally, other components, such as holders or the like, are added.

The container is a refill bottle for liquid media.

Such containers are usually made of a plastic.

The media provided in the container may in particular be liquid skin disinfectants (for example the Sterilium® product of the

Manufacturer Paul Hartmann AG) or for use in medical

Facilities provided hygienic washing solutions (for example, the

Product Stellisept® HD from manufacturer Paul Hartmann AG).

There is an activation code on the container. The activation code is, in particular, a code based on a digital code, in particular ASCII, a frequency-modulated code, an amplitude-coded code, an optical code, in particular BAR code, QR code, micro QR code, a graphic code, a numeric code, an alphanumeric code, a magnetic code, a chemical code or a biochemical code, in particular based on nucleic acids or of

Antigen / antibody interaction. Depending on the type of code, this requires a suitable physical carrier of the coded information which is familiar to the person skilled in the art. For example, a digital activation code can be stored on an RFID or NFC chip. In the case of an optical code, the carrier can be designed, for example, in the form of a paper section or a film section.

The carrier of the activation code can for example be adhered to the container (preferably insoluble), integrated into the container or introduced into the interior of the container. In the case of an optical code this can also be printed on the container.

Preferably, the carrier is a passive RFID transponder, which can communicate with a reader present on the housing.

The inventively provided housing can accommodate the container.

Preferably, the housing is such that the container with the

Dispensing opening can be inserted at the top of the container or with the discharge opening at the bottom of the container in the housing. In this case, the housing can only partially enclose the container in the use position. Alternatively, the housing may substantially completely enclose the container in the use position.

To insert the container, it may be necessary to pivot or move a flap or a lid, possibly also other device components.

According to the invention suitable housing are known from the prior art manifold. By way of example, reference is made here to EP2322065B1, which shows a forwardly open housing, which can receive a container so that its discharge opening in the use position points upwards. The container is inserted from below into the housing. Preferably, a display is provided on the housing, as also described in the aforementioned EP2322065B1. Furthermore, a

Input unit, such as a keyboard or a keypad, be present. Particularly preferably, a touch screen display is provided on the housing. However, the display, the input unit or the touchscreen display may also be attached to the dispensing mechanism.

The dispensing mechanism must be capable of delivering a substantially reproducible amount of liquid medium present in the container to a user upon request.

The dispensing mechanism may in this case comprise an electric pump, a mechanical pump or a valve. The dispensing mechanism can also be a

Combination of a pump and one or more valves. The term "pump" in this case also mechanical devices are to be understood, which is a promotion of the liquid medium through the partial

Press in an elastic container cause. Preferably, the

Dispensing mechanism, an electric pump, in particular a Kolbenhubpumpe or a peristaltic pump. Advantageously, in connection with the invention, the dosing device described in WO 201620721 1 can also be used for dispensing the liquid medium.

Particularly preferably, the dispensing mechanism can be activated without contact, in particular by means of a proximity sensor or an optical sensor.

For the operation of the electrical and / or electronic components, a suitable power supply, such as battery, accumulator or power supply is used.

The dispenser system of the invention includes an electronic detector that can detect the activation code present on the container. For this purpose, the detector is designed to electromagnetic, magnetic, inductive, optical, optoelectronic, graphic, acoustic, chemical or biochemical signals detect and output a response (output signal), which is transmitted to the electronic control for evaluation.

Accordingly, the detector is, for example, an optical sensor, in particular a photocell or a CCD sensor, around a

electromagnetic receiving unit to a magnetic field sensor or the like.

Preferably, the detector is an RFID reader which can identify a transponder attached to the container.

The code used to code the activation code is, for example, a digital code, a frequency modulated code, an amplitude modulated code, an optical code, in particular BAR code, QR code, micro QR code, a numerical code, in particular a binary code or a hexadecimal code, an alphanumeric code, a magnetic code, a chemical code or a biochemical code, in particular on the basis of nucleic acids or of antigen / antibody interaction.

The code used to code the activation code may be transmitted from the carrier of the activation code present on the container to the electronic detector.

The dispenser system according to the invention comprises an electronic control for the dispensing mechanism. The control provided for this purpose must be designed to process input signals and to generate output signals. The

Input signals comprise at least the output signal of the detector and the signal transmitted by the interface described in more detail below. The output signal of the controller comprises a signal for activating the

Dispensing mechanism. Further input signals are for example signals of a proximity sensor, keystrokes, signals of other detectors such as

For example, the signal of a level detector or signals from

Counting. Further output signals of the electronic control are, for example, signals for generating display displays or audible

Messages.

The electronic control of the dispenser may generate two system states, a first system state in which the dispensing mechanism is disabled and a second system state in which the dispensing mechanism is released. The electronic control on the one hand controls the

Maintaining a specific system state. On the other hand, the electronic control can cause the change from the first system state to the second system state and vice versa. First of all, for example when no container has been inserted into the dispenser or when the container has been removed from the dispenser, the electronic controller is in the first system state. The transition from the first system state (locked) to the second system state (enabled) occurs only when using the

Detector a valid activation code was recognized on the container. Accordingly, the introduction of a container with an invalid activation code or a container which does not carry any activation code does not result in a transition from the first system state to the second system state, i. the dispensing mechanism is locked. If the container is removed from the dispenser so that the allowable activation code can no longer be detected by the detector, then the electronic controller causes a transition to the first system state, which in this context may also be referred to as a ground state. According to the invention, however, the electronic control is additionally designed such that the transition to the second system state (enabled) and its permanent maintenance can also be effected by the input of a release code via the interface. As a result, the dispensing mechanism can be activated even if no valid activation code has been recognized on the container. After entering the release code, the second system state is maintained even if a container is removed and a new refill container is inserted. Optionally, an additional control mechanism may be present, which the

Dispensing mechanism then locks if no container was used at all. However, this additional inactivation of the dispensing mechanism then functions independently of the above system conditions.

Preferably, the lock can be reactivated by the input of a reactivation code via the interface again. The dispenser is then locked again as long as no container with a valid activation code is used. In practice, the user of the dispenser could be the manufacturer be obliged to reactivate the lock if the medical emergency that led to the release of the donor is over. To do this, the user would need to enter the reactivation code provided by the manufacturer via the interface.

The electronic control usable in connection with the invention must therefore be able to carry out at least the following algorithmic operations:

- Recording the output signal generated by the detector and its decoding

- Matching of the determined code with a stored activation code

Unlocking the dispensing mechanism by transitioning from the first system state to the second system state and maintaining the second system state as long as an allowable activation code is detected by the detector

- Recording the release code transmitted via the interface

- Comparison of the release code with a stored release code

- transition from the first system state to the second system state, if the entered release code corresponds to the stored release code

If the electronic controller is in the second system state, the electronic controller also controls the dispensing mechanism, where additional functions can be performed, if any. The additional functions are, for example, an activation of the dispenser by means of a proximity sensor. Also possibly existing communication functions of the device, such as a W-LAN connection are made possible by the electronic control.

Optionally, the electronic control can perform further algorithmic operations in connection with the foreign filling lock, in particular

- Recording of the reactivation code transmitted via the interface

- Reconciliation of the reactivation code with a stored reactivation code

- and reactivation of the lock after entering a reactivation code. The dispenser system further includes an interface for entering the release code. The interface is in particular a

Input field, a keyboard or a keypad, an electronic interface, in particular a USB interface, an optical interface, an acoustic interface or a wireless interface.

It is advantageous if the dispenser system comprises more than one interface, for example both a keypad (or a touchscreen display) and an electronic interface, in particular a USB interface (or a wireless interface). Namely, if several different interfaces are present, there are alternative possibilities for the manufacturer to provide the user with the release code.

To encode the release code, in particular a digital code, a frequency-modulated code, an amplitude-modulated code, an optical code, in particular BAR code, QR code, micro QR code, a graphic code, a numeric code or an alphanumeric code can be used ,

Preferably, the release code is a digital code, a numeric code or an alphanumeric code. A numeric code or an alphanumeric code may be given to the user by the manufacturer

for example, by letter, e-mail or telephone. The user then enters the release code, for example via a keypad or

Touchscreen display.

A digital code can be transmitted to the user by the manufacturer, for example via the Internet. The transfer of the release code to the donor then takes place via an electronic interface or wirelessly via WLAN. Such a transmission has the advantage that a variety of devices can be unlocked simultaneously and automatically.

Accordingly, in accordance with a preferred embodiment, the invention includes a dispensing system wherein the interface and the electronic controller are configured to receive a release code over the Internet so as to enable remote deactivation of the lock. The release code can preferably be a device-specific code, so that only one release code exists for each individual device. For example, the release code may be generated using a specific device identifier. However, it is also possible to use a universal release code that is identical, for example, for all devices of a particular series or batch.

According to an advantageous embodiment of the dispenser system, the code for coding the activation code is of a different nature than the code for coding the release code. In particular, a dispensing system is proposed in which the activation code can be transmitted via RFID or NFC, while the release code can be entered via an electronic interface, via a wireless interface or via a keypad. Activation of the

Dispensing mechanism can then be done in a practical manner by means of attached to the containers RFID chips without further user intervention, while the release code can be transmitted in an emergency from the manufacturer quickly and possibly to a variety of devices simultaneously.

It is also conceivable the release code using a specific

To generate device identifier, so that only single release code exists for each dispenser system.

Furthermore, it can be provided in the context of an advantageous embodiment of the dispenser system that the present on the container activation code in addition to the required for the deactivation of the key key information can be transmitted to the electronic control, in particular information for dosing the liquid medium and / or information on the content of the container, which may preferably be displayed by a display on the dispenser.

In the context of the invention, the activation code is preferably an RFID code.

An RFID system comprises a transponder (also called radio tag or "RFID tag"), which carries a distinctive code, and a reader, which is required for reading the code attached while the reader is placed in a suitable position in the dispenser.

The RFID transponder generally comprises a radio transmission system with antenna and an analog circuit. Furthermore, a digital circuit, which may possibly be a microcontroller, is present. Transponders furthermore comprise at least one write once memory, which serves as a carrier of the immutable identity of the transponder. The antenna is usually in the form of a coil.

Active and passive transponders are known. Passive transponders draw their electrical energy from the radio signals of the reader, while active transponders have their own power supply. In connection with the invention, passive RFID transponders are preferred. With the energy obtained using an antenna from the alternating field can be passive

Transponders are charged a capacitor. The range of passive

Transponder is much lower in comparison to active transponders and depends inter alia on the strength of the high-frequency alternating field generated by the reader and on the geometry of the antennas. In the context of the present invention, a short range of, for example, 2 to 10 cm is advantageous, because then only the transponder on the container, which is located in the dispenser, outputs a response signal.

In connection with the invention, for example, advantageous RFID transmission systems can be used, which are designed according to the standard ISO 18000-1. The standard ISO 18000-1 concerns the identification of goods by means of high frequency.

The RFID tags may be in the long wavelength range, e.g. at 125 kHz, 134 kHz, 250 kHz, 375 kHz, 500 kHz, 625 kHz, 750 kHz or 875 kHz, in the shortwave

Frequency range, eg at 13.56 MHz, in the ultra-short wave frequency range, eg at 865-869 MHz (European frequencies) or 950 MHz (US and Asian frequencies) or in the microwave SHF range at 2.45 GHz and 5.8 GHz work. Encrypted data transmission is possible and advantageous in the context of the invention proposed herein to prevent unauthorized replication of the activation code. For encryption, for example, the AES standard (128-bit) can be used.

An exemplary embodiment of the dispenser system 10 according to the invention is shown schematically in FIG. The dispensing system 10 includes the replaceable container 1, which is housed in the housing 2. In the housing 2, a dispensing mechanism, in particular an electric pump 4, is provided which serves to suck out by means of the dip tube 21 a reproducible amount of the medium 20 present in the container 1 and supply it to a user. The dispensing mechanism 4 is in fluid communication with an outlet 11. An optional proximity sensor 12 may activate the dispensing mechanism 4 when a user's hand is under the spout 11.

Alternatively, activation of the dispensing mechanism would also be possible through a switch or lever. In or on the housing 2 is still an electronic controller 6, an interface 7, an RFID reader 5 with antenna 22 and a power supply 3. On the container 1 with the

Disinfectant 20, an RFID transponder 9 is mounted with antenna 23.

The interconnection of the electronic or electrical components is shown schematically in FIG. 2:

An electronic control 6 for the dispensing mechanism controls the pump 4. In the example shown, the electronic control for the

Dispensing mechanism Part of an integrated microcontroller 6 that controls and monitors all electronic functions of the device.

The electronic controller 6 communicates with the electronic detector 5, which is an RFID reader 5 in the examples shown in FIGS. 1 and 2. The RFID reader 5 can recognize a transponder 9, which carries an allowable activation code, as soon as the container 1 is in the housing 2 and thus in sufficient proximity to the reading device 5. The

Detecting a valid activation code is one way to overcome the barrier provided by the electronic control 6. Another

Possibility to unblock is to enter the microcontroller 6 via the Interface 7 (also referred to as interface 7) to enter a release code 8. The electronic controller 6 can therefore communicate with the interface 7. The communication takes place in such a way that after entry of a valid release code 8 via the interface 7, a lock implemented by the electronic control 6 for the delivery mechanism 4 can be deactivated. Deactivation of the lock occurs independently of the detection of an activation code and thus also when a non-manufacturer-authorized container is used. The interface 7 may be, for example, a keypad. In this case, the user enters the release code 8 via the keypad. Alternatively or additionally, the interface 7 may comprise an electronic interface. The electronic interface can be connected, for example, to a WLAN network.

The interface 7 may be used for other functions, in particular for checking and maintaining (e.g., updating the software) the microcontroller present in the dispenser system 10.

Furthermore, it is also possible (alternatively or additionally), the electronic

Detector 5 to use as an interface for entering the release code. If it is the electronic detector 5, for example, an RFID reader, an input of the release code would be possible by a the

Release code carrying transponder is held in the vicinity of the electronic detector 5. If it is the electronic detector 5 against

For example, if a barcode reader is involved, a barcode containing the release code could be held in front of the barcode reader 5 to unlock the device.

All components shown in FIG. 2 are connected to a power supply 3

connected, for example, to a battery or a power supply.

Claims

claims

1 . Dispensing system for liquid media, in particular for disinfectants, comprising

a replaceable container in which the medium is provided, an activation code being present on the container,

a housing which can receive the container,

- a power supply,

a dispensing mechanism which is suitable for supplying the medium present in the container to a user,

an electronic detector, softer the existing on the container

Can recognize activation code,

- An electronic control for the dispensing mechanism, wherein the controller has a lock, which causes the dispensing mechanism can only be activated when the detector has detected an allowable activation code on the container, characterized in that the electronic control has at least one interface , which is adapted to enter a release code, wherein the input of the release code causes the lock is disabled.

2. Dispensing system according to claim 1, wherein the housing can receive the container in the use position so that a discharge opening is arranged at the top of the container or at the bottom of the container.

The dispensing system of claim 1 or 2, wherein the housing only partially encloses the container in the use position, or wherein the housing substantially completely encloses the container in the use position.

A dispensing system according to one or more of the preceding claims, wherein the dispensing mechanism comprises an electric pump, a mechanical pump and / or a valve.

A dispensing system according to one or more of the preceding claims, wherein on the housing or on the dispensing mechanism a display,

especially a touch screen display, is available.

A dispenser system according to one or more of the preceding claims, wherein the interface is an input field, a keypad, an electronic keypad

Interface, an optical interface, an acoustic interface or a wireless interface.

A dispenser system according to one or more of the preceding claims, wherein the dispensing system comprises more than one interface, in particular a keypad and a wireless electronic interface.

The dispenser system of one or more of the preceding claims, wherein the detector is capable of detecting electromagnetic, magnetic, inductive, optical, opto-electronic, graphic, acoustic, chemical or biochemical signals.

The dispenser system according to one or more of the preceding claims, wherein the code used to encode the release code and / or the activation code comprises a digital code, a frequency modulated code, an amplitude encoded code, an optical code, in particular BAR code, QR code, Micro -QR code, a graphic code, a numerical code or an alphanumeric code.

A dispenser system according to one or more of the preceding claims, wherein the code for coding the activation code is of a nature other than the code for encoding the release code.

1 1. Dispenser system according to one or more of the preceding claims, wherein the activation code can be transmitted via RFID or NFC and wherein the release code via an electronic interface, via a wireless

Interface or via a keypad can be entered.

12. Dispenser system according to one or more of the preceding claims, wherein the release code is generated using a specific device identifier, so that for each dispenser system only a single

Release code exists.

13. Dispenser system according to one or more of the preceding claims, wherein the present on the container activation code in addition to the for the

Disabling the lock required keys can transfer more information to the electronic control, in particular information about

Dosing of the liquid medium and / or information on the contents of the container, which can preferably be displayed by a display on the dispenser.

A dispenser system according to one or more of the preceding claims, wherein the interface and the electronic controller are adapted to receive a release code over the Internet, such as a remote controlled one

Disable the lock.

15. A method for deactivating a barrier in a dispenser for liquid media, in particular for disinfectants, comprising the steps i) providing a donor comprising

a housing which can receive a container with the liquid medium,

- a power supply,

an electronic detector which can detect an activation code present on the container, and

an electronic controller for the dispensing mechanism, the controller having a barrier which causes the dispensing mechanism to be activated only when an allowable activation code has been detected on the container by the detector, the electronic controller having at least one interface ii) providing a release code, wherein the release code is provided in particular by the manufacturer of the donor, iii) entering the release code using the interface, wherein the entry of the release code causes the lock to be deactivated, iv) optional use of the dispenser with a container on which no

Activation code is present, v) optional reactivation of the lock by entering a reactivation code using the interface.