Device for delivering a fluid, in particular a cleaning, care or disinfecting fluid for hands and a system for monitoring such a device

Abstract

The present invention relates to a device (10) for delivering a fluid, in particular a cleaning, care or disinfecting fluid for hands, comprising a housing (12) which encloses a cavity (14) into which a container (18) for holding the fluid can be installed, and forms an outer housing surface (28), a pump and metering unit (20), which can be connected or is connected to the housing (12), which can be connected in a detachable manner to the container (18), and with which the fluid can be pumped out of the container (18) and delivered, comprises a monitoring unit (54), with which device-related and/or user-related data can be collected and stored, and a display (76) interacting with the monitoring unit (54) for entering and displaying the user-related data and/or the device-related data. The invention also relates to a system for monitoring such a device (10.sub.2).

Claims

1. A system for monitoring a device (10) for delivering fluid, comprising: the device (10) for delivering fluid, comprising: a housing (12) which encloses a cavity (14) into which a container (18) for holding the fluid can be installed, the housing (12) further having an outer housing surface (28); a pump and metering unit (20) which can be connected or is connected to the housing (12), and which can be connected to the container (18) in a detachable manner, whereby the pump and metering unit (20) pumps the fluid out of the container (18) for delivery thereof; a monitoring unit (54) with which device-related and/or user-related data can be collected and stored; a display (76) interacting with the monitoring unit (54) for entering and displaying the user-related data and/or the device-related data; and a transmitting and receiving unit (60) for data exchange with external units (62); a first external unit (621) on which user-related data are stored, which can be read out by means of the transmitting and receiving unit (60); and a second external unit (622), on which the user-related data and device-related data can be deposited and evaluated, the second external unit (622) having a second transmitting and receiving unit (602) for data exchange with the transmitting and receiving unit (60) of the device (10).

2. The system according to claim 1, characterized in that at least one ultrasonic sensor (90) is arranged on the outer housing surface (28).

3. The system according to claim 1, characterized in that a number of light sources (92) which emit ultraviolet radiation are arranged on the outer housing surface (28).

4. The system according to claim 3, characterized in that the device comprises at least one UV sensor (94) for registering the ultraviolet rays reflected by the hands of a user.

5. The system according to claim 3, characterized in that at least one first camera (96) is arranged on the outer housing surface (28).

6. The system according to claim 1, characterized in that the device (10) has a user identification device (80) with which the identity of the user of the device (10) can be established.

7. The system according to claim 6, characterized in that the user identification device (80) has a readout unit (82) for reading out an RFID transponder (84).

8. The system according to claim 7, characterized in that the user identification device (80) further comprises a second camera (86).

9. The system according to claim 8, characterized in that the readout unit (82) and/or the second camera (86) are arranged in the display (76).

10. The system according to claim 1, characterized in that a number of keypads (88) is arranged in the display (76), each of the keypads (88) being assigned to a specific activity related to a disinfection process.

11. The system according to claim 1, further comprising: a level sensor (56) for determining the level of the fluid in the cavity (14); and/or a temperature sensor (58) for determining the temperature of the fluid in the cavity (14).

12. The system according to claim 1, further comprising: a drive unit (48) that can be activated by means of a motion sensor (50) that can be triggered in a contactless manner, and the motion sensor (50) comprises an ultrasonic sensor or a proximity sensor.

13. The system according to claim 1, characterized in that the outer housing surface (28) comprises an antibacterial surface (33) and/or as a superhydrophobic surface (34).

14. The system according to claim 1, characterized in that the second transmitting and receiving unit (602) is set up in such a way that a data exchange with a third external unit (623) is made possible.

Description

(1) Exemplary embodiments of the invention are explained in more detail below with reference to the accompanying drawings. In the drawings:

(2) FIG. 1 shows a perspective view of a first embodiment of a device according to the proposal for delivering a fluid, in particular a cleaning, care or disinfecting fluid for hands, with a closure body;

(3) FIG. 2 shows the device shown in FIG. 1 on the basis of a side view with a closure body;

(4) FIG. 3A shows a perspective sectional representation through the device shown in FIG. 1;

(5) FIG. 3B shows an isolated representation of a pump and metering unit;

(6) FIG. 4 shows a perspective sectional representation through a second embodiment of the device according to the proposal in a first configuration; and

(7) FIG. 5 shows a perspective sectional representation through the second embodiment of the device according to the proposal in a second configuration; and

(8) FIG. 6 shows a basic representation of a system for monitoring the device shown in FIGS. 1 to 3;

(9) FIG. 7 shows a first perspective representation of a third embodiment of the device according to the proposal; and

(10) FIG. 8 shows a second perspective representation of the third embodiment of the device according to the proposal.

(11) FIG. 1 shows a perspective view of a first embodiment of a device 10.sub.1 according to the proposal for delivering a fluid, in particular a cleaning, care or disinfecting fluid for hands. The device 10.sub.1 comprises a housing 12, which encloses a cavity 14 (see FIG. 3A). The housing 12 forms an opening 16 through which the cavity 14 is accessible. As can be seen in FIG. 3A, a container 18, in which a fluid, for example a cleaning fluid, a care fluid or a disinfecting fluid, can be stored, can be introduced into the cavity 14 and connected by means of a thread or a bayonet closure (not shown), for example, to a pump and metering unit 20, which will be described in more detail below. FIG. 1 shows an actuating lever 22 of the pump and metering unit 20, which lever is fastened to the housing 12 in a rotatable manner.

(12) In FIG. 2, the device 10.sub.1 shown in FIG. 1 is shown on the basis of a side view. It can be seen both from FIG. 1 and from FIG. 2 that the opening 16 is closed by means of a closure body 24, which is why the container 18 cannot be seen in FIGS. 1 and 2. However, it may be prescribed that the container 18 is visible from the outside. In this case, the closure body 24 can be made of a transparent material. The closure body 24 can be locked to the housing 12 by means of a plug connection. In order to release it from the housing 12, the closure body 24 must be somewhat compressed by a user. Not shown is an embodiment in which the closure body 24 is movably fastened to the housing 12 between a closed position and an open position. To this end, the housing 12 can have a receiving opening 26, wherein details of the attachment are not shown for reasons of representation.

(13) The housing 12 forms an outer housing surface 28 (see FIG. 2). Accordingly, the pump and metering unit 20 forms a pump and metering unit outer surface 30 and the closure body 24 forms a closure body outer surface 32. In the illustrated embodiment, the pump and metering unit outer surface 30 is formed by the above-mentioned actuating lever 22 of the pump and metering unit 20. The outer housing surface 28, the pump and metering unit outer surface 30 and the closure body outer surface 32 are each designed as an antibacterial surface 33 and as a superhydrophobic surface 34, which are shown symbolically and enlarged in FIG. 2. The antibacterial surface 33 prevents the growth of microorganisms and the superhydrophobic surface 34 prevents the attachment of particles, in particular of pathogens, as a result of which the spread of pathogens and the diseases caused by them can be counteracted. Alternatively, the actuating lever 22 can be made of stainless steel without it having a coating.

(14) As can be seen from FIG. 2, the closure body outer surface 32 closes with the outer housing surface 28 in an offset-free manner when the closure body 24 is connected to the housing 12. This avoids the formation of dead spaces in which pathogens could accumulate and multiply.

(15) FIG. 3A shows a perspective sectional representation through the device 10.sub.1 shown in FIGS. 1 and 2. In order to illustrate the construction of the pump and metering unit 20, this is shown separately in FIG. 3B in a slightly different embodiment, the functions described below being the same in both embodiments.

(16) It can be seen that the pump and metering unit 20 has a pump plunger 36, which can be pressed into the cavity 14 of the housing 12 by means of the actuating lever 22, the pump plunger 36 being preloaded with a first spring 38. The pump plunger 36 comprises a channel 40, which at its free end forms a delivery opening 42, which can be designed as a foam nozzle. At its closed end, the channel 40 opens into a suction tube 44, which protrudes into the container 18 when the container 18 is connected to the pump and metering unit 20. An extension hose (not shown) which extends to the base of the container 18 can be connected to the suction tube 44. Between the delivery opening 42 and the head of the pump plunger 36, the channel 40 is formed by a flexible hose 45 in the embodiment shown in FIG. 3A, so that relative movements between the pump plunger 36 and the delivery opening 42 can be compensated. In addition, the pump and metering unit 20 is provided with a non-return valve 46, which is preloaded with the first spring 38 into a closed position, as shown in FIGS. 3A and 3B.

(17) When a user presses the actuating lever 22, the pump plunger 36 is displaced into the cavity 14 of the housing 12, the first spring 38 being compressed. The non-return valve 46 remains in the closed position. Due to the reduction of the volume between the delivery opening 42 and the non-return valve 46, the fluid exits through the delivery opening 42, provided that the channel 40 between the non-return valve 46 and the delivery opening 42 is completely filled with fluid.

(18) If the user lets go of the actuating lever 22, the pump plunger 36, together with the actuating lever 22, is returned to the starting position by the first spring 38. Due to the increase in the volume between the non-return valve 46 and the delivery opening 42, the non-return valve 46 is opened and the fluid is sucked out of the container 18 into the suction tube 44. In order to prevent already delivered fluid or air from the environment from being sucked back into the channel 40 through the delivery opening 42, a non-return valve function is integrated in the delivery opening 42.

(19) FIG. 3A also shows that the pump and metering unit 30 is connected to the housing 12 in a detachable manner by means of a fastening device 49. In particular in the area of the delivery opening 42, it can be seen that the fastening device 49 has groove-shaped sections into which the pump and metering unit 30 can be inserted with a translational movement perpendicular to the section plane of FIG. 3A and removed from it again.

(20) Furthermore, the pump and metering unit 30 has an adapter unit 51 which, in the present embodiment, comprises a first tubular section 53.sub.1 and a second tubular section 53.sub.2 which engage one another and are fastened to one another by means of a thread (see in particular FIG. 3B). By turning, the second tubular section 53.sub.2 can be inserted more or less far into the first tubular section 53.sub.1, as a result of which the second tubular section 53.sub.2 protrudes more or less far from the first tubular section 53.sub.1. In the second tubular section 53.sub.2, a sealing body 55 is mounted so as to be axially movable, the sealing body 55 being preloaded with a second spring 47 into the position shown in FIG. 3B.

(21) To insert the container 18, it is pressed against the sealing body 55 with an opening 57 and placed with the bottom on an inclined contact surface 59 (see FIG. 3A). Depending on the size of the container 18, the sealing body 55 is shifted more or less far toward the non-return valve 46, the second spring 47 being compressed. As a result, on the one hand, containers 18 can be used which differ in their height within certain limits. On the other hand, it is ensured that a sufficiently large contact pressure acts between the sealing body 55 and the opening 57 of the container 18 in order to seal the container 18 with respect to the pump and metering unit 20.

(22) If the height difference between two containers 18 exceeds the distance that the sealing body 55 can travel within the tubular section 53.sub.2, the second tubular section 53.sub.2 can be moved further out of or into the first tubular section 53.sub.1 by turning. The aim is to ensure that the free end of the second tubular section 53.sub.2 comes into contact with the container 18 in order to protect the opening 57 of the container 18 from the penetration of dirt.

(23) FIG. 4 shows a second embodiment of the device 10.sub.2 on the basis of a perspective sectional representation which is based on the representation of FIG. 3. The device 10.sub.2 is in a first configuration. FIG. 5 shows the second embodiment of the device 10.sub.2 also on the basis of a perspective sectional representation, wherein the device 10.sub.2 is in a second configuration. The two configurations will be discussed later.

(24) FIG. 4 shows that the device 10.sub.2 is equipped with a drive unit 48, with which the pump plunger 36 can be moved independently into the cavity 14 and which can be designed, for example, as an electric motor. In this case, it is not necessary for the user to press the actuating lever 22 with his hand. Consequently, according to the second embodiment, the device 10.sub.2 has no actuating lever 22.

(25) To activate the drive unit 48, the device 10.sub.2 comprises a motion sensor 50, which in the present exemplary embodiment is designed as an ultrasonic sensor 52 or a proximity sensor 52. The proximity sensor 50 is shown only in principle in FIG. 4 and is arranged on a sensor board, not shown in any more detail here, which is arranged in the cavity above the proximity sensor 50 of the device 10.sub.2. The user must insert his hand into the detection area of the motion sensor 50 without, however, having to touch the device 10.sub.2. As a result, a signal is generated by the motion sensor 50 and transmitted to the drive unit 48. The drive unit is activated and a certain amount of fluid is delivered via the delivery opening 42. The mode of action of the pump and metering unit 20 corresponds to that described for the first embodiment of the device 10.sub.1, with the essential difference that the movement of the pump plunger 36 is effected by the drive unit 48 and not as a result of the movement of the actuating lever 22.

(26) Since the device 10.sub.2 can be activated in a contactless manner according to the second embodiment, there is a risk that particles, in particular pathogens, which have accumulated on the pump and metering unit outer surface 30, can accumulate on the hand of the user and thereby get into the body of the user.

(27) As can also be seen from FIG. 4, the device 10.sub.2 is equipped with a monitoring unit 54, with which device-related and/or user-related data can be collected and stored. The monitoring unit 54 comprises a circuit board 71, which is arranged in a further cavity 72 enclosed by the housing 12. In FIG. 4 it can also be seen that the device 102 has a level sensor 56 arranged on the circuit board 71, with which the fill level of the fluid in the container 18 can be determined. In addition, the device 10.sub.2 is equipped with a temperature sensor 58, which is also arranged on the circuit board 71 and with which the temperature in the environment of the temperature sensor 58 can be determined. The temperature sensor 58 is arranged such that it substantially determines the temperature of the fluid in the container 18. However, if the temperature in the environment of the device 101 drops or increases significantly, as may be the case, for example, in the case of a fire, the temperature sensor 58 will also detect this temperature change.

(28) Both the level sensor 56 and the temperature sensor 58 cooperate with the monitoring unit 54 and supply at least some of the above-mentioned device-related data.

(29) FIG. 4 also shows that the device 10.sub.2 also has a transmitting and receiving unit 60, which is also arranged on the circuit board 71. With this transmitting and receiving unit 60, data deposited on the monitoring unit 54 can be exchanged with external units 62. A first external unit 621 is shown in FIG. 4, which can be designed, for example, as a smartphone, as a transponder, as a barcode or the like. As a result, a user who uses the device 10.sub.2 can be identified. Thus, it is possible, for example, to be able to activate the drive unit 48 only when a user has previously been able to be recognized as an authorized user.

(30) FIG. 4 further shows that the device 10.sub.2 comprises two batteries 73, with which the supply of the drive unit 48 and the electronic components such as the temperature sensor 58 with electrical energy can be ensured. As mentioned, the device 10.sub.2 has a transmitting and receiving unit 60, with which data can be exchanged wirelessly with external units 621. In addition, the device 10.sub.2 also has an Ethernet connection 75, with which the device 10.sub.2 can be connected to a LAN in a wired manner With a corresponding configuration of the LAN, the electronic components can also be supplied with electrical energy via the LAN (Power over Ethernet).

(31) As mentioned, the proximity sensor 50 is mounted on its own sensor board, not shown in FIGS. 4 and 5. The provision of the sensor board, which is spatially separated from the circuit board 71, makes it possible in a simple manner to provide an embodiment of the device 10.sub.2, which on the one hand can be activated without contact using the proximity sensor 50, but on the other hand does not have the circuit board 71 and consequently the sensors mounted thereon, for example, the temperature sensor 58. Such an embodiment of the device 10.sub.2 can be useful if documentation is not necessary.

(32) As mentioned, FIG. 5 shows the device 10.sub.2 in a second configuration. If we compare FIGS. 4 and 5, it is found that the pump and metering unit 20 has been removed from the housing 12 in the second configuration and another container 18 has been inserted into the cavity 14. This container 18 has its own pump and metering unit 66, which in this case is non-detachably connected to the container. This pump and metering unit 66 also comprises its own delivery opening 68.

(33) The container 18, which is inserted into the cavity 14 in FIG. 5, also has a significantly lower height than the container which has been inserted into the cavity in FIG. 4. In order to ensure that the pump and metering unit 66 can interact with the drive unit 48 and that the delivery opening 68 is arranged in such a way that the delivered fluid can also leave the cavity 14, a support body 70 is placed on the contact surface 59, on which the container 18 is supported. Alternatively, the support body can also be hooked into the housing 12. This compensates for the lower height of the container 18.

(34) In the following, reference is made to FIG. 6, in which a system 64 for monitoring the device 10.sub.2 shown in FIGS. 4 and 5 is shown on the basis of a basic representation. The system 64 comprises the device 10.sub.2, the above-mentioned first external unit 621, a second external unit 622 and a third external unit 623, the third external unit 623 being only optional. The number of devices 10.sub.2, first external units 621, second external units 622 and third external units 623 can be selected as desired.

(35) As mentioned, the first external unit 621 can be designed as a barcode which can be read out by the transmitting and receiving unit 60 of the device 10.sub.1. Consequently, it is not necessarily necessary for the first external unit 621 to have a first transmitting and receiving unit 601, wherein this is the case, for example, when the first external unit 621 is designed as a smartphone or as a transponder.

(36) The second external unit 622 can be, for example, a server of a hospital, a doctor's office or a factory, which can communicate with the device 10.sub.2 via a WLAN network, for example, and consequently has a second transmitting and receiving unit 602. The second external unit 622 can exchange data with the third external unit 623, which can also be designed as a server which communicates with a plurality of second external units 622 using a third transmitting and receiving unit 603. Depending on the configuration of the first external unit 621, the second external unit 622 and the third external unit 623, the third external unit 633 can also communicate with the first external unit 621.

(37) The system 64 can be operated, for example, in the following ways: As mentioned, the fill level of the fluid in the container 18 can be monitored by means of the level sensor 56, and the temperature of the fluid in the container 18 and the temperature in the immediate vicinity of the device 10.sub.1 by means of the temperature sensor 58. In the event that the fill level of the fluid in the container 18 falls below a certain value, a corresponding signal can be generated by the second external unit 622 and transmitted to a specific person. This person can, for example, be the owner of the first external unit 621, which is designed as a smartphone. This person can now initiate the replacement of the container, so as to avoid the container 18 located in the device 10.sub.2 being completely emptied and thus the device 10.sub.2 being used not as intended.

(38) If the temperature detected by the temperature sensor 58 rises to a certain value over a certain period of time, this can be an indication of contamination of the fluid. Again, the second external unit 622 generates a corresponding signal and sends it to the first external unit 621, so that the responsible person can also initiate the replacement of the container located in the device 10.sub.2. If the temperature measured by the temperature sensor 58 rises to an unusually high value within a very short time, this can be interpreted as an indication of a fire. The second external unit 622 can now trigger a fire alarm. Since the location of the device 10.sub.2 whose temperature sensor 58 has registered the temperature rise is known, the source of the fire can be located.

(39) Due to the fact that personal data are exchanged with the device 10.sub.2 with the first external unit, it is possible to determine which persons used the device 10.sub.2 at what point in time. The corresponding information is transmitted to the second external unit 622, where appropriate documentation is carried out, which can be transmitted, for example, to the health department or the professional association. In the event that the person concerned has not used the device 10.sub.2 as intended, a corresponding notification can be issued to that person.

(40) In the event that it is determined that a person has become infected with a certain pathogen, this information is stored in the third external unit 623. If the person has used the device 10.sub.2 before the time at which the infection has been detected, a corresponding signal can be generated which indicates the need to disinfect the device 10.sub.2 as quickly as possible, for example by autoclave. Furthermore, other persons who have used the device 10.sub.2 shortly after the infected person can be informed in order to be able to initiate appropriate countermeasures.

(41) FIGS. 7 and 8 show a third embodiment of the device 10.sub.3 according to the proposal on the basis of perspective representations. The device 10.sub.3 according to the third embodiment comprises all the features of the second embodiment of the device 10.sub.2 and is consequently based thereon. In particular, according to the third embodiment, the device 10.sub.3 has the drive unit 48, which is not visible in FIGS. 7 and 8. Only the additional features are referred to below.

(42) The device 10.sub.3 according to the third exemplary embodiment has a top panel 74, which is connected to the housing 12, for example by means of a latching connection. However, the top panel 74 can also be manufactured as an integral part of the housing 12. In FIG. 7, one looks at the top of the top panel 74. The top panel 74 protrudes to the left and to the right beyond the housing 12. Attached to the top panel 74 is a display 76, with which user-related data and device-related data or other data can be displayed. To this end, the display 76 has a display section 78.

(43) Furthermore, a user identification device 80 is arranged in the display 76, which comprises a readout unit 82 for reading out an RFID transponder 84, which is only shown here in principle. Alternatively or cumulatively, the user identification device 80 comprises a second camera 86, which is also arranged in the display 76.

(44) The display 76 also comprises a number of keypads 88, in this case twelve keypads 88, each of the keypads 88 being assigned to a specific activity related to a disinfection process. This will be discussed in more detail later.

(45) FIG. 8 shows the device 10.sub.3 according to the third embodiment on the basis of a second perspective representation, in which one can look at the underside of the top panel 74. Two ultrasonic sensors 90 are arranged on the underside of the top panel 74 and can emit ultrasound and detect reflected ultrasound.

(46) Furthermore, a plurality of light sources 92, which can emit ultraviolet radiation, are arranged in the form of a strip on the underside of the top panel 74. In the illustrated embodiment, these light sources 92 are designed as LED strips which extend from the front edge to the rear edge of the top panel 74.

(47) In addition, two UV sensors 94 are provided, which are also attached to the underside of the top panel 74 and can detect reflected UV rays.

(48) Furthermore, two first cameras 96 are arranged on the underside of the top panel 74. The ultrasonic sensors 90 as well as the light sources 92, the UV sensors 94 and the two first cameras 96 interact with the monitoring unit 54, which is not visible here.

(49) The device 10.sub.3 according to the third exemplary embodiment can be operated in the following manner.

(50) A user, for example an employee of a hospital who wants to disinfect his hands, holds an RFID transponder 84 assigned to him in front of the readout unit 82. Depending on the design of the device 10.sub.3, the second camera 86 can instead detect, for example, the facial features of the employee. The readout unit 82 and the second camera 86 may also be operated in parallel with one another to provide redundancy. The goal is to identify the employee. If the employee is successfully identified, a corresponding piece of information can be output on the display section 78 of the display 76. In the event of an unsuccessful identification, a corresponding error message can be issued.

(51) In the event of a successful identification, the employee can now select one of the keypads 88, which is assigned to the activity which the employee is currently planning to perform, for example a catheter change. The employee then holds his hands under the first camera 96 and/or under the ultrasonic sensor 90. The device 10.sub.3 now checks whether the employee is wearing jewelry such as a ring or has artificial nails. If this is the case, a corresponding notification is issued, according to which the applicable regulations have been violated. If the employee has no artificial nails and is not wearing jewelry, a corresponding OK message is issued and the employee can now move his hands under the delivery opening 42. This movement is registered by the motion sensor 50, not shown in FIG. 8 (see for example FIGS. 4 and 5), as a result of which the drive unit 48 is activated and a certain amount of the fluid is delivered. The amount of the fluid delivered can depend on the selected activity. A fluorescent additive is added to the fluid, which becomes visible in interaction with the UV rays emitted by the light sources 92. After the employee has massaged the fluid into his hand surfaces, he can already see for himself whether the entire hand surface has been wetted by the fluid or whether areas have been missed. To this end, the user holds his hands under the light sources 92, which have been switched on at the same time as or shortly after the activation of the drive unit 48. By means of the UV sensors 94 and/or by means of the first cameras 96, it can be checked by means of the device 10.sub.3 whether the entire hand surface has been wetted by the fluid or whether areas have been missed. If the entire hand surface is wetted by the fluid, a further OK message is issued, indicating that the hand disinfection is successfully completed. If areas have been missed, the fluid must be massaged again or additional fluid must be requested.

(52) All the data which have been logged by the monitoring unit 54 of the device 10.sub.3 during the hand disinfection are transmitted by means of the transmitting and receiving unit 60 (cf. FIGS. 4 and 5) to the external units 62. The external units 62 document that the employee concerned has carried out the relevant activity after he has disinfected his hands according to the regulations. The information that the hand disinfection has been successfully completed can also be used to grant the relevant employee access to the patient. To this end, the external units 62 can interact with a door opener which opens the door to the room in which the patient is located only after the hand disinfection has been successfully completed.

(53) It may be prescribed that the hands must be disinfected again when the employee has completed the activity in question. Then the procedure described above can be performed again. This hand disinfection is also documented.

(54) Depending on the selected activity and the configuration of the device 10.sub.3, the above-mentioned steps for hand disinfection can also be carried out in a different sequence. In addition, additional steps may be provided or steps may be omitted.

LIST OF REFERENCE NUMBERS

(55) 10 Device 10.sub.1-10.sub.3 Device 12 Housing 14 Cavity 16 Opening 18 Container 20 Pump and metering unit 22 Actuating lever 24 Closure body 26 Receiving opening 28 Outer housing surface 30 Pump and metering unit outer surface 32 Closure body outer surface 33 Antibacterial surface 34 Superhydrophobic surface 36 Pump plunger 38 First spring 40 Channel 42 Delivery opening 44 Suction tube 45 Hose 46 Non-return valve 47 Second spring 48 Drive unit 49 Fastening device 50 Motion sensor 51 Adapter unit 52 Ultrasonic sensor, proximity sensor 53.sub.1, 53.sub.2 Tubular section 54 Monitoring unit 55 Sealing body 56 Level sensor 57 Opening 58 Temperature sensor 59 Contact surface 60 Transmitting and receiving unit 601-603 First to third receiving unit 62 External unit 621-623 First to third external unit 64 System 66 Own pump and metering unit 68 Delivery opening 70 Support body 71 Circuit board 72 Further cavity 73 Battery 74 Top panel 75 Ethernet connection 76 Display 78 Display section 80 User identification device 82 Readout unit 84 RFID transponder 86 Second camera 88 Keypad 90 Ultrasonic sensor 92 Light sources 94 UV sensors 96 First camera