DE102019135844A1 - Method for recognizing actuations, interface module and patient communication system - Google Patents

Abstract

The invention relates to a method for recognizing actuation of a compressed air switch of a patient communication system, an actuation being recognized when the pressure exceeds a triggering threshold value for a triggering period, an end of actuation is recognized when the pressure falls below an end threshold value after being actuated, and after At the end of the actuation, another actuation is recognized at the earliest after a waiting period has elapsed. The invention also relates to an associated method for recognizing actuation of two compressed air switches, an associated interface module and an associated patient communication system.

Description

The invention relates to a method for recognizing actuation of compressed air switches of a patient communication system, an interface module for a patient communication system and a patient communication system.

Patient communication systems are used to enable patients who are in hospitals, for example after severe operations or accidents and are therefore severely restricted in their ability to communicate, to communicate with medical staff such as doctors or nursing staff. For a patient who, for example, is in the intensive care unit after a serious operation and is connected to numerous devices, who is for example intubated and ventilated, it can be very difficult to even respond to elementary needs such as the desire to eat or drink something, to point out or to express pain. Typically, patients in such a situation are unable to speak and the mobility of arms is limited.

In the prior art, there is a patient communication system from the document DE 20 2010 014 777 U1 known. It is provided that various communication elements are displayed one after the other in chronological order and the patient has the option of selecting one of the communication elements by means of a compressed air button. Although this gives the patient a basic means of communication, it has been shown that due to the difficult physical constitution of the patients who use such a patient communication system, the detection of actuation of such a compressed air button is difficult and thus, for example, undesired multiple actuations occur.

It is therefore an object of the invention to provide a method for detecting actuations of a compressed air switch of a patient communication system, which method is designed as an alternative or better than known designs. It is also an object of the invention to provide a method for detecting first actuations of a compressed air switch of a patient communication system and second actuations of a second compressed air switch of the patient communication system. In addition, it is an object of the invention to provide an associated interface module and an associated patient communication system.

This is achieved according to the invention by a method, an interface module and a patient communication system according to the respective main claims. Advantageous refinements can be found in the respective subclaims, for example. The content of the claims is made part of the description by express reference.

• - Messen eines im Druckluftschalter herrschenden Drucks,
• - Erkennen einer Betätigung, wenn der Druck für einen Auslösezeitraum einen Auslöseschwellenwert übersteigt,
• - Erkennen eines Endes der Betätigung, wenn der Druck nach erkannter Betätigung einen Endschwellenwert unterschreitet,
• - nach dem Ende der Betätigung Erkennen einer weiteren Betätigung frühestens nach Ablauf eines Wartezeitraums.

The invention relates to a method for recognizing actuations of a compressed air switch of a patient communication system. The procedure consists of the following steps:

• - measuring a pressure prevailing in the compressed air switch,
• - Detection of an actuation if the pressure for a triggering period exceeds a triggering threshold value,
• - Detection of the end of actuation when the pressure falls below an end threshold value after actuation is recognized,
• - after the end of actuation, recognition of further actuation at the earliest after a waiting period has elapsed.

This method can be used to ensure that actuation of the compressed air switch is only recognized if the patient has actually consciously actuated the compressed air switch. This is ensured by the fact that the pressure exceeds the trigger threshold value for at least the trigger period. In addition, it is ensured that if only one actuation is desired, two or more actuations are not accidentally recognized, which could lead to undesired functions being triggered. Therefore, after the end of the actuation, the waiting period is first waited until a new actuation can be recognized.

The method can in particular be carried out in an electronic control device, a computer, an interface module, a control unit of an interface module or in another programmable or hard-wired unit.

A compressed air switch can in particular represent a patient switch of a patient communication system. This is typically used so that a patient can operate the patient counter even with a very difficult physical constitution and thus can use a patient communication system. The compressed air switch typically has a closed air space in which the pressure prevailing therein can be increased when the patient operates the compressed air switch. Such a pressure increase can in particular be recognized by means of a pressure sensor.

A recognized actuation can, for example, result in different signals being output which indicate the actuation of another component such as a control device. Other processing, typically electronic processing, is also possible, in particular functions of the patient communication system can be activated or deactivated when actuation is recognized, certain menus or pages can be displayed or functionalities for calling personnel can be activated. Possible configurations are discussed in greater detail below.

The recognized end of the actuation can, but does not necessarily have to, have immediate consequences. For example, it can also be provided that the end of the actuation initially has no further consequences, apart from the start of the waiting period. As a result, it can be implemented that only one actuation of the compressed air switch is used for the control of a patient communication system.

The triggering period and the waiting period can be implemented, for example, by means of a timer or by comparing a current time with a stored time.

The pressure can in particular be measured at constant time intervals. Continuous monitoring is thereby achieved and an actuation can be reacted to with a defined reaction time. For example, the constant time intervals can be more than 1 ms, more than 5 ms or more than 8 ms, and / or they can be less than 12 ms, less than 15 ms or less than 20 ms. In particular, the time intervals can be, for example, 10 ms. Such values have proven to be advantageous for typical applications. However, a continuous measurement is also possible, for example.

According to one embodiment, the trigger threshold value corresponds to the final threshold value. A particularly simple implementation can thereby be achieved, with no different threshold values having to be implemented. This can mean that the trigger threshold value and the final threshold value are implemented exactly identically, but predefined, for example system-related deviations of, for example, 1%, 5% or 10% of the two threshold values from one another can also be understood as an implementation with a trigger threshold value which corresponds to the final threshold value . However, it is also possible to choose different trigger threshold value and end threshold value so that the switching behavior can be optimized.

According to one embodiment, the triggering threshold value and / or the end threshold value can be tracked as a function of an ambient air pressure. This can in particular take place on a longer time scale than the time intervals in which the pressure is measured, so that the compressed air switch can adapt to pressure fluctuations which correspond to atmospheric air pressure fluctuations and thus typically take place on a time scale of hours or days. An adaptation to a higher air pressure due to the patient communication system being moved to a higher floor can also take place in this way. For example, such a change in air pressure can be detected by means of an external pressure sensor or also by means of a pressure sensor which monitors the pressure of the compressed air switch, for example by smoothing over time.

The triggering period can in particular be greater than 10 ms, greater than 20 ms, greater than 30 ms or greater than 40 ms. The triggering period can in particular be less than 60 ms, less than 70 ms, less than 80 ms, less than 90 ms or less than 100 ms. In particular, the trigger period can be 50 ms. Such values have proven to be advantageous for typical applications, since they ensure that actuation of the compressed air switch is not accidentally recognized if the patient has not pressed the compressed air switch at all.

The waiting period can in particular be greater than 0.5 s, greater than 0.6 s, greater than 0.7 s, greater than 0.8 s or greater than 0.9 s. The waiting period can in particular be less than 1.1 s, less than 1.2 s, less than 1.3 s, less than 1.4 s or less than 1.5 s. In particular, the waiting period can be 1 s. Such values have proven to be advantageous for typical applications, since they ensure that a multiple actuation is not accidentally recognized when in reality there was only a single desired actuation.

The invention also relates to a method for detecting first actuations of a first compressed air switch of a patient communication system and second actuations of a second compressed air switch of the patient communication system. First actuations of the first compressed air switch are recognized by means of a method according to the invention with a first trigger period, a first trigger threshold value, a first waiting period and a first end threshold value. Second actuations of the second compressed air switch are carried out by means of a method according to the invention with a second trigger period, a second trigger threshold value, and a second Waiting period and a second end threshold recognized.

The method just described enables the method described at the outset to be expanded to include the monitoring of two compressed air switches in a patient communication system. With regard to the method used in each case, all of the embodiments and variants described herein can be used. It should be noted that first and second actuations are not to be understood here as a chronological sequence of actuations, but that a first actuation should be understood to mean actuation of the first compressed air switch and that a second actuation should be understood to mean actuation of the second compressed air switch . The designations “first” and “second” in the case of the triggering period, the triggering threshold value, the waiting period and the end threshold value are also used to distinguish between the two compressed air switches, although different values can be used.

It can be provided that the first trigger period corresponds to the second trigger period. It can be provided that the first triggering threshold value corresponds to the second triggering threshold value. It can be provided that the first waiting period corresponds to the second waiting period. It can be provided that the first end threshold value corresponds to the second end threshold value. A particularly simple implementation can be achieved by equating the respective values. However, different values can also be used, so that any different requirements that may be recognized when operating the two compressed air switches can be addressed.

The method can in particular be carried out in an interface module to which the first compressed air switch and the second compressed air switch are pneumatically connected. The interface module can be communicatively connected to a control device of the patient communication system. By using such an interface module, the functionality for detecting actuations of the two compressed air switches can be implemented in an interface module provided for this purpose, which can be developed and provided independently of further components of a patient communication system. The first compressed air switch and the second compressed air switch typically have a respective volume of air which can be pneumatically connected, for example, to a respective pressure sensor in the interface module. The control device can in particular take on further tasks in the patient communication system, in particular the display of different menus, the operation of such menus depending on detected actuations of the compressed air switch or the display of further information and the control of communication functionalities.

According to one embodiment, it is provided that status signals are output continuously, which can assume an idle value, a first actuation value and a second actuation value. In response to a recognized actuation of the first compressed air switch, the first actuation value is preferably output. In response to a recognized actuation of the second compressed air switch, the second actuation value is preferably output. Otherwise the idle value is preferred.

By continuously outputting status signals, another component, in particular another component of a patient communication system such as the control device already mentioned, can initially be used to continuously monitor whether a component responsible for recognizing the actuations, such as the interface module already mentioned, is present and / or working properly. This applies regardless of which of the three possible values is currently being output. If the idle value is output, there is typically no recognized actuation at the moment. An actuation of the first compressed air switch can be signaled by means of the first actuation value. An actuation of the second compressed air switch can be signaled by means of the second actuation value. Thus, for example, the already mentioned control device can trigger different control functions based on the receipt of the first actuation value or the second actuation value, for example display a specific menu, display specific information or select a component of a menu.

The first actuation value can be output until the end of the actuation of the first compressed air switch is recognized. The second actuation value can be output until the end of the actuation of the second compressed air switch is recognized. As a result, information about the length of the actuation is passed on, which can be used if necessary. In addition, in the event that the output of only a single actuation value has not yet been recognized as a difference from the rest value, the actuation can nevertheless be detected by the control device. Alternatively, however, it is also possible to output only a single actuation value in response to detection of actuation of one of the compressed air switches then immediately return to the rest value.

The status signals can in particular be encrypted, i.e. they can, for example, have a respective predetermined value which is encrypted by means of a predetermined encryption algorithm. A receiving unit, for example the control device already mentioned, can then carry out a decryption and thus infer the actual value. This means that communication can be further secured.

The status signals can in particular be output at constant time intervals. The constant time intervals can in particular be greater than 1 ms, greater than 5 ms or greater than 8 ms. The constant time intervals can in particular be less than 12 ms, less than 15 ms or less than 20 ms. In particular, the constant time intervals can be 10 ms. Such values have proven to be advantageous. In particular, the constant time intervals can be equal to constant time intervals at which the pressure is measured at the respective compressed air switches. For example, it can be provided that a respective pressure of the two compressed air switches is measured at constant time intervals, it is checked immediately afterwards whether an actuation or the end of an actuation can be recognized, and in response to this, an adapted status signal can be output directly , that is to say a rest value, a first actuation value or a second actuation value can be reacted to. This allows an advantageous synchronization and a simple implementation.

The invention also relates to an interface module for a patient communication system. The interface module has a connection for a first compressed air switch. The interface module has a first pressure sensor for measuring a pressure prevailing in the first compressed air switch. The interface module has a connection for a second compressed air switch. The interface module has a second pressure sensor for measuring a pressure prevailing in the second compressed air switch. The interface module has an electronic control unit which is configured to carry out a method according to the invention. With regard to the method according to the invention, it is possible to fall back on all of the embodiments and variants described herein, in particular on those which are directed to the use of two compressed air switches.

By means of such an interface module, a separate module can be provided which implements the functionalities for recognizing actuation of the compressed air switch and can provide the corresponding information for controlling the patient communication system. For example, the implementation can be used in which the interface module sends the status signals already described in order to transmit an actuation of one of the compressed air switches to a control device. The compressed air switches can be permanently connected to the interface module, but they can also be implemented detachably therefrom.

The invention also relates to a patient communication system. The patient communication system has a display device. The patient communication system has a control device. The patient communication system has a first patient switch, which is designed as a first compressed air switch. The patient communication system has a second patient switch, which is designed as a second compressed air switch. The patient communication system has an interface module according to the invention, it being possible to fall back on all of the embodiments and variants described herein. This is particularly true with regard to the implemented method.

The compressed air switches are connected to the interface module and the interface module is communicatively connected to the control device.

A particularly simple operation can be achieved by means of such a patient communication system, since compressed air switches have proven to be a particularly advantageous operating option for patient communication systems, since they can also be operated easily and reliably by patients with an extremely difficult physical constitution, for example after severe operations. By providing two compressed air switches, significantly more functionalities can be provided than with just one compressed air switch, without noticeably increasing the complexity. With regard to the functionality that can be implemented, reference is made, for example, to the other description given herein.

The electronic control unit of the interface module can in particular be configured to carry out a method as described herein with reference to the continuous outputting of status signals and to send the status signals to the control device. The control device can in particular do this be configured to restrict a functionality of the control device or to deactivate the control device in the absence of status signals for a predetermined trial period. It can thereby be ensured that the control device basically monitors whether the interface module is present, and a reaction can be made to the absence of the interface module. For example, after the predetermined trial period has expired, that is, when no more status signals have been received for such a trial period, the control device can be deactivated, for example further execution of the software running on it being prevented or restricted. This makes it possible to make the software available independently of the interface module, which, for example, gives a person interested in the patient communication system the opportunity to test the functionality for the trial period. If the trial period has expired, further use is no longer possible. As a result, such test versions cannot be used to set up unauthorized patient communication systems. In addition, it can be ensured during ongoing operation of a patient communication system that the interface module is still the interface module provided and authorized by the manufacturer, whereby manipulations on the patient communication system can be detected, for example by using an unauthorized interface module, and further execution can be prevented. Malfunctions that can result from the use of an unauthorized interface module are thus avoided.

A deactivation can in particular be understood to mean that certain or all functions, in particular with regard to a display of menus or pages and / or with regard to the selection of objects, are no longer available.

The control device can in particular have an electronic identification feature, and the control device can in particular be configured to send the identification feature to the interface module when it is started. The electronic control unit of the interface module can in particular be configured to only start and / or only send status signals after the identification feature has been verified as valid. This makes it possible to ensure that the interface module or its control unit only starts and / or only sends out status signals when the interface module is used together with an authorized control device. For example, a control device can thus be coupled to an interface module. The control device can thus ensure that only an authorized or its assigned interface module is used together with the special control device. This effectively prevents the use of unauthorized interface modules, which could lead to malfunctions. In particular, it can be provided that when an unauthorized interface module is used, it does not transmit any status signals due to the failed verification of the identification feature and thus the control device can only be used for the trial period. After the trial period has expired, the control device can be deactivated so that further use is no longer possible.

The fact that an identification feature is verified as valid can in particular be understood to mean that an identification feature received from the control device corresponds to a stored identification feature. However, other implementations, which can be based on predetermined algorithms, for example, are also possible.

The trial period can include a period of 30 minutes or one hour, for example. This has proven to be a useful time in which, for example, an interested party can use the software of the patient communication system on a test basis and form an opinion on it, while at the same time improper use, which would have to encompass longer periods, is excluded.

A patient communication system in different configurations is described below. These represent independent aspects of the invention. In particular, the method described so far or the interface module can be used for a patient communication system described below. In addition, all aspects described below can be combined in any selection, combination or sub-combination with the methods described so far, with the interface module described so far, or with the patient communication system described so far.

According to one possible embodiment, the invention relates to a patient communication system. The patient communication system has a display device. The patient communication system has a control device. Furthermore, the patient communication system has a first patient switch and a second patient switch.

The control device is preferably configured to have a number of one or more Display patient selection menus on the display. Each patient selection menu has a plurality of sectors. A respective patient menu object can be displayed in a respective inactive or a respective active state in a plurality of the sectors or in all sectors.

The control device is preferably configured to always display only one patient menu object in the active state for each patient selection menu and to display all other patient menu objects in the inactive state. The control device is furthermore preferably configured to display a respective next patient menu object in the active state in response to actuation of the first patient switch. In addition, the control device is preferably configured to select a respective patient menu object displayed in the active state in response to actuation of the second patient switch.

In the patient communication system just described, there are two patient switches available which, compared to known designs, provide a considerably better operating option that is easier for the patient to use. It is no longer necessary to display information to the patient in a predetermined time sequence, which information then has to be selected at a specific point in time. Rather, by using the first patient switch, the patient can control the desired function in a targeted manner and then select the corresponding function by actuating the second patient switch. The patient does not have to adhere to a time limit specified by the patient communication system; rather, he can determine the selection process himself. It also does not matter if, for example, an attempt to operate a patient switch was unsuccessful in an individual case, for example because the patient did not have the required mobility of his hand at the particular moment. The actuation can be made up at any later time.

Furthermore, the provision of two patient switches and the described patient selection menus enables considerably more extensive functionality than in the case of designs according to the prior art, since the targeted selection of patient menu objects means that practically any branching of patient selection menus or other elements to be displayed, for example those mentioned below, are possible, which enables a much more extensive interaction between patient and patient communication system or between patient and hospital staff.

It has been found that ideal operation is possible with the patient communication system described, specifically even and in particular by patients who are considerably restricted in their ability to communicate and move after severe operations. The particularly simple operability by means of the patient selection menu and the patient switch has been specifically simplified to such an extent that even patients in such difficult situations are able to have the simplest possible, but nevertheless extensive, communication.

A selection can in particular be understood to mean that a certain action is carried out as a function of the selected object and / or a further menu or a page is displayed, in particular as a function of the selected object.

The display device can in particular be a screen, preferably a touch-sensitive screen. The patient selection menus or other content can be displayed on such a screen, for example those which are described in more detail below. An embodiment as a touch-sensitive screen enables the patient communication system to be controlled by screen input on the screen, which is particularly advantageous in the case of the operating functions to be mentioned below by personnel and / or for maintenance purposes.

The control device can be designed, for example, as a microcontroller, microprocessor, computer, application-specific integrated circuit (ASIC) or as a programmable logic controller (PLC). In particular, it can have processor means and storage means, program code being stored in the storage means, the processor means executing the functionality described herein when it is executed.

The first patient switch and / or the second patient switch are preferably optimized so that they can be operated by a patient with severely restricted mobility. In particular, the first patient switch and / or the second patient switch can be designed as a compressed air switch. This has proven to be particularly useful for the application relevant here, since patients typically still have sufficient strength to operate such compressed air switches, even in the situations described, and at the same time undesired multiple actuations of such switches can be prevented particularly well. In the case of compressed air switches, the methods already described herein for Application come to recognize actuations. Alternatively, however, other types of patient switches can also be used, for example touch-sensitive sensors, buttons or non-contact sensors.

The first patient switch and / or the second patient switch can in particular be designed to be potential-free. In particular, this can mean that they are electrically isolated compared to the rest of the patient communication system. As a result, static charges that may possibly arise in the patient communication system can be kept away from the patient so that the patient does not receive any electric shocks when operating the patient communication system.

According to a preferred embodiment, the patient communication system can have a patient module and a flexible line. The patient module can be connected to further components of the patient communication system by means of the flexible line. The first patient switch and the second patient switch can in particular be embodied in the patient module. Such an embodiment allows the patient module to be freely positioned in comparison to the rest of the patient communication system at least in a spatial area defined by the flexible line, which, for example, enables the display device and other components to be arranged next to a patient's bed, while the patient module has the two patient switches Can be placed in the bed so that it can be operated by the patient. For example, compressed air hoses can run in the flexible line, which connect patient switches designed as compressed air switches to pressure sensors.

In principle, menus are referred to as patient selection menus which are displayed to the patient and in which the patient is enabled to select a patient menu object in the manner already described. As mentioned, each patient menu object has two states, namely an active state and an inactive state. These are graphically distinguishable from one another. The two states of a patient menu object can be stored, for example, in the form of respective graphics. However, other possibilities are also conceivable, for example different texts, colors, formatting or fonts can be stored to differentiate between the two states.

The first patient switch can in particular have a color which corresponds to a color that has a certain area, for example a text, of the patient menu objects in the inactive state. The second patient switch can, for example, have a color which corresponds to a color which the corresponding area of the patient menu objects has in the active state. This allows the patient to be signaled in a simple manner that he can switch another menu object to the active state by actuating the first patient switch and that he can select the patient menu object in the active state by actuating the second patient switch.

The display of only one patient menu object in the active state and of all other patient menu objects in the inactive state can in particular relate to a specific point in time. At a subsequent point in time, for example, an input can be made so that another patient menu object is displayed in the active state. In particular, a sequence can be specified in which, for a specific patient selection menu, the patient menu objects are displayed when the first patient switch is actuated in the active state. This can in particular correspond to a linear sequence of the sectors, for example after reaching an end of the predetermined sequence, i.e. a last selectable patient menu object, a jump is made to the first patient menu object again when the first patient switch is actuated.

In response to a selection of a patient menu object displayed in the active state, predefined functions can be carried out, which can in particular depend on the respective selected patient menu object. For example, certain information can be displayed or it can be branched to a further patient selection menu. This will be discussed in more detail below.

The control device can in particular have an adjustable patient language parameter for selecting one of a plurality of patient languages, with respective associated patient menu objects being stored for each patient language and for each patient selection menu, which are displayed depending on the patient language set. This means that different patient languages can be used, which also enables communication with foreign-language patients, for example. The patient speech parameter can be set, for example, in a menu which is not accessible to the patient by means of the patient switch, so that inadvertent adjustment is prevented. Also other objects or text elements to be displayed, for example those which are described in more detail below can be saved for different patient languages.

A patient menu object can in particular have a combination of text and graphics or it can for example only have a graphic or only a text. The text can be stored in several languages, for example, the text being displayed in a specific language depending on the patient language parameter. A text can, for example, be saved as a character string or as a graphic. For example, several character strings corresponding to different languages can be stored for a specific patient menu object. It can also be stored that the corresponding text, which is selected depending on the set patient language parameter, depending on whether the patient menu object is displayed in the active or inactive state, is displayed differently, for example it can be bold in the active state, in another Font, a different size and / or a different color.

For example, in response to a selection of a patient menu object, depending on the selected patient menu object, a further patient selection menu or a patient information page is displayed. If the patient selects, for example, a patient menu object which is to lead to a further patient selection menu, this patient selection menu is now displayed so that the patient has further selection options. If, on the other hand, the patient selects, for example, a patient menu object that is to lead to a patient information page, this patient information page is displayed. For example, such a patient information page can contain information such as the current time, the time until the next visit, but also other information, for example to be obtained externally, such as current news, explanatory videos or messages from relatives.

The patient communication system can in particular have a status display which is preferably separate from the display device and which displays at least a first state and a second state. The control device can in particular be configured to switch the status display to the second state in response to a selection of predetermined patient menu objects and / or to display a personnel selection menu with a plurality of personnel menu objects, and to switch the status display to the first state in response to at least one predefined input. The status display can, in particular by means of the second status, indicate that the patient has selected a patient menu object which the responsible staff requests. This can be the case, for example, if the patient has selected a patient menu object which refers to needs such as hunger or thirst that are not to be self-satisfied. In this case, by means of the display of the second status, the status display signals to the staff that someone should go to the patient. Using a staff selection menu, it is then possible, for example, for the staff member responsible to make entries in the patient communication system, which in turn are used to interact with the patient. As a result, the staff can also communicate with patients who, for example, have no or only insufficient hearing ability, or who cannot understand statements made by the staff because they speak a foreign language. In this case, the patient communication system enables targeted communication with the patient, for example via the personnel selection menu, specifically also in the direction from the personnel to the patient. The personnel menu objects can, for example, enable the personnel to make a selection, which in turn then leads to certain information or feedback being displayed to the patient. Corresponding explanations will be discussed in more detail below. In contrast, the first state can signal that the patient does not need any interaction with the staff at the moment, so that it is currently not necessary for the staff to go to the patient's bed. It is possible to switch to this state, for example, when an interaction between staff and patient is complete or when the patient communication system is in a state in which only a patient selection menu is displayed, from which the patient first has to select a specific patient menu object in order to display his or her wish . It should be understood that the functionality of a personnel selection menu described herein can in principle also be implemented independently of the presence or the functionality of a status display.

The status display can in particular have a first lamp for displaying the first state and a second lamp for displaying the second state. However, other designs, for example using multicolored lamps or displays, are also possible. The status display can also have a remote communication device which, for example, can communicate the status via a wired or wireless network, so that status monitoring is possible without visual contact with the patient communication system, for example. For example, the corresponding status can be displayed in a central monitoring station of a hospital so that employees there can recognize when they should go to a patient.

According to one embodiment, the patient communication system can have a first operating button that is separate from the patient switches. The control device can in particular be configured to activate a patient mode in response to an actuation of the first operating button. By means of such a first control button, in particular the staff can switch the control device to patient mode, for example after a desired interaction with the patient has been completed. In response to an activation of the patient mode, in particular a predetermined main patient selection menu can be displayed. The main patient selection menu is basically a patient selection menu as already described above, but is particularly privileged compared to other possibly implemented patient selection menus as it is the first patient selection menu that is displayed in response to an activation of the patient mode, for example by means of the first control button. Typically, all functions accessible to the patient can be reached from the main patient selection menu, either directly or through branches or further patient selection menus. The patient mode can, for example, correspond to the first state already described above, so that it can be provided, for example, that the status display indicates the first state in response to the fact that the first control button has been actuated.

The patient communication system can have a second operating button that is separate from the patient switches. The control device can in particular be configured to activate a personal mode in response to an actuation of the second operating button. In response to an activation of the personnel mode, in particular a predetermined personnel main selection menu with a plurality of personnel menu objects can be displayed. The second control button thus enables the staff to go to the patient and, independently of the current state of the patient communication system, to switch to a staff mode in which certain communication options are available to the staff. The main personnel selection menu is a personnel selection menu which, compared to other possibly implemented personnel selection menus, is privileged in that it is displayed immediately, in particular when the second control button is actuated. Typically, the personnel main selection menu enables the staff to reach the communication functions which are to be made available to the staff either directly or by branching with other staff selection menus. The personnel mode can in particular correspond to the second state already described above, ie the second state can be displayed, for example in response to a selection of a patient menu object with which personnel should be called for a specific reason, and a personnel selection menu can be displayed at the same time, which enables the called personnel to communicate directly with the patient.

According to one embodiment, a further personnel selection menu, a patient response menu or a personnel information page is displayed in response to a selection of a personnel menu object, depending on the selected personnel menu object. Another personnel selection menu can in particular have corresponding personnel menu objects which can be selected by the personnel in order to trigger further functions. A patient response menu can be, for example, a menu in which the patient in turn has options in order to provide feedback on a question from the staff. A possible implementation is described in more detail below. A personnel information page can in particular be a page which displays information selected by the personnel. In this way, for example, the patient can be given feedback, for example whether he is allowed to eat something or that an employee will now get something to eat.

During the display or for the operation of the main personnel selection menu and / or during the display or for the operation of a personnel selection menu, in particular the patient switches can be deactivated or at least deactivated except for a return function to the previous menu. This can prevent the patient from intervening in a functionality that is to be carried out by the staff through his patient switch. The return function can, for example, allow the patient to correct an incorrect entry and thus to return to a previous menu, for example a previous patient selection menu. This can be implemented, for example, by a displayed menu object or a button, the patient being able to select the return function, for example, by actuating the second patient switch. It can also be provided that during the display of the main personnel selection menu and / or during the display of a personnel selection menu, the patient communication system is controlled exclusively or at least except for a return function to the previous menu, or for the operation of a personnel selection menu, by means of screen input, or that the operation a personnel selection menu takes place exclusively by means of screen input. Such a screen input can in particular be done by staff who, in addition to the Patient communication system is available and can operate a touch-sensitive screen, for example. This enables easy selection of corresponding menu objects and thus easy communication with the patient. A screen input can take place as a touch input, but in principle another technology can also be used by means of which inputs can be made, for example a contactless input. Both with a touch input and with a contactless input, in particular objects can be selected which are displayed on a screen. This allows particularly flexible operation. Personnel menu objects do not necessarily have to be differentiated into active and inactive states; there can also only be one state for each personnel menu object of a personnel selection menu. However, it can also be provided that, in a personnel selection menu, a distinction is made between the active and the inactive state of the personnel menu objects.

A personnel selection menu can, for example, only fill out a partial area of the display device, and in addition, for example, a patient response menu or a personnel information page or another menu or another page can be displayed. This allows the operation to be made clearer.

According to one embodiment, each patient response menu has a plurality of sectors, a respective patient response object in a respective inactive or a respective active state being able to be displayed in a plurality of the sectors. The control device can in particular be configured to always display only one patient response object in the active state for each patient response menu and to display all other patient response objects in the inactive state. It can be configured to display a respective next patient response object in the active state in response to an actuation of the first patient switch. Furthermore, it can be configured to select a patient response object that is respectively displayed in the active state in response to actuation of the second patient switch.

As a result, a patient response menu can be controlled by the patient in a similar or identical manner to the control of a patient selection menu. In this regard, reference is made to the description of patient selection menus already given above; the corresponding explanations can also be applied to a patient response menu. A patient response menu can in particular be displayed when the staff wants to ask the patient a question, for which purpose a staff selection menu can be used, for example, in which a corresponding staff menu object is selected. The patient can then also use the patient response menu by means of his familiar operation from the patient selection menus and thus give the staff a corresponding feedback.

For example, the staff can in this way ask the patient whether he is hungry, and the patient can use his patient counter to select whether he is hungry or not, and thus give the staff appropriate feedback.

The patient response objects can also be stored and / or used depending on the patient language. Reference is made to the above statements.

According to an advantageous embodiment, the control device can have an adjustable personal language parameter for selecting one of a plurality of personal languages, with respective associated personal menu objects being stored for each personal language and for each personal selection menu, which are displayed depending on the respective set personal language. As a result, different languages of the staff can be taken into account in a manner similar to that already described above with reference to a patient language parameter. This means that employees with different language skills can also communicate with the patient, regardless of the languages spoken or understood by the patient. A personnel language can thus be set which is adapted to the responsible employee. The explanations given above for the language of the patient can be used accordingly for the language of the staff. Reference is therefore made to the above statements. Other objects or text elements to be displayed, for example those which are described in more detail herein, can each be stored for different personal languages.

The first control button can in particular be designed as a contactless and / or capacitive sensor. The second control button can also be designed as a contactless and / or capacitive sensor. Such sensors have proven themselves for the application relevant here, especially since they are easy to operate. However, it should be understood that other designs are also possible.

The patient communication system can in particular have a stand on which at least the display device is attached. The control device can also be attached to or in the stand, for example, and it For example, further components such as those for power supply can be attached to or in it. In addition, for example, the flexible line to a patient module already mentioned above can be attached to it. The stand can in particular have a plurality of rollers for moving the stand. For example, five castors can be used on respective feet of the stand, which effectively prevents tipping. However, other designs are also possible here.

According to a development, the patient communication system can also have an interface for connecting an external storage medium. The interface can be connected to the control device. It should be pointed out that the functionality now described and the provision of an interface can be an independent aspect of the invention, which can also be implemented independently of other features and functionalities of a patient communication system.

The control device can in particular be configured to read in update data from an external storage medium connected to the interface, to update data stored in the control device or on a storage unit connected to it, for example the above-mentioned storage means, using the update data, and it can in particular be configured to do so then delete the update data on the storage medium. Such an embodiment makes it possible to provide an update option in a simple manner, by means of which the software of the patient communication system can be updated without a connection to the Internet or any other network being necessary for this. As a result, increased safety regulations in hospitals can be taken into account, which can prohibit such a connection to such networks, in particular to the Internet. By providing the storage medium, an update can nevertheless take place, with it being possible, for example, to add new functionalities or languages. The advantageous deletion of the update data on the storage medium after the update makes it possible to prevent a storage medium from being used for updating other patient communication systems, as a result of which the security of the update is increased. In particular, this can prevent the update data from being used for further patient communication systems for which, for example, there is no license for additional functions.

The control device can be configured to decrypt data from the external storage medium and / or to check a signature of the data. As a result, the data can be provided with a specific encryption and / or a specific signature, with the encryption, for example, being able to prevent unauthorized reading and the signature being able to ensure that only original data, for example data provided by the manufacturer of the patient communication system can be read in and used. In particular, the control device can be configured to process data from the external storage medium only if they are encrypted in accordance with a specification and / or the signature has been checked to be correct. This can prevent unauthorized persons from manipulating the patient communication system and using it, for example, for tasks for which it is not intended. Such manipulations could endanger the safety of the patient using the patient communication system.

The aspects described herein, which relate to the functionality of a patient communication system, can in particular also be understood as method aspects. These have their own inventive significance.

• 1: ein Patientenkommunikationssystem,
• 2: ein Patientenmodul,
• 3: eine interne Verschaltung,
• 4: einen Verlauf eines Drucks mit der Zeit und zugehörige Zustandssignale,
• 5: ein Patientenhauptauswahlmenü,
• 6: das Patientenhauptauswahlmenü von 5 in einem weiteren Zustand,
• 7: das Patientenhauptauswahlmenü von 5 in einem weiteren Zustand,
• 8: ein Patientenauswahlmenü,
• 9: das Patientenauswahlmenü von 8 in einem weiteren Zustand,
• 10: ein Personalauswahlmenü,
• 11: eine Personalinformationsseite,
• 12: eine Patienteninformationsseite,
• 13: ein Personalhauptauswahlmenü,
• 14: ein Personalauswahlmenü und ein Patientenantwortmenü,
• 15: ein Personalauswahlmenü und eine Patientenantwortseite,
• 16: ein Personalauswahlmenü und eine Personalinformationsseite in einer anderen Sprache,
• 17: ein Personalauswahlmenü und eine Personalinformationsseite in nochmals einer anderen Sprache,
• 18: ein Personalauswahlmenü und ein Patientenantwortmenü.

The person skilled in the art will learn further features and advantages from the exemplary embodiment described below with reference to the accompanying drawings. Show:

• 1 : a patient communication system,
• 2 : a patient module,
• 3 : an internal interconnection,
• 4th : a pressure curve over time and associated status signals,
• 5 : a main patient selection menu,
• 6th : the main patient selection menu of 5 in another state,
• 7th : the main patient selection menu of 5 in another state,
• 8th : a patient selection menu,
• 9 : the patient selection menu of 8th in another state,
• 10 : a personnel selection menu,
• 11 : a personnel information page,
• 12th : a patient information page,
• 13th : a main personnel selection menu,
• 14th : a staff selection menu and a patient response menu,
• 15th : a staff selection menu and a patient response page,
• 16 : a personnel selection menu and a personnel information page in another language,
• 17th : a personnel selection menu and a personnel information page in yet another language,
• 18th : a staff selection menu and a patient response menu.

1 shows a patient communication system 10 according to an embodiment of the invention.

The patient communication system 10 has a stand 20th on. There are a total of five rollers on the underside 25th attached, by means of which the patient communication system 10 can be proceeded. This enables, for example, the patient communication system 10 to push to the bed of a patient, who with the help of the patient communication system 10 should communicate.

The patient communication system 10 has a display device 30th on, which in the present case is designed in the form of a touch-sensitive screen. In particular, menus and information pages can be displayed thereon, which are used for communication between the patient and staff or for informing the patient. This will be discussed in more detail below. The display device 30th is on the stand as shown 20th attached.

The patient communication system 10 assigns a patient module 40 on. This is via a flexible line 45 with the stand 20th connected. The patient module 40 can for example be placed in the patient's bed so that the patient can operate the patient communication system 10 over on the patient module 40 located patient counters 41 , 42 is made possible. This is discussed further below with reference to 2 and further figures are discussed in more detail.

The patient communication system has a status indicator 80 with a first lamp 81 and a second lamp 82 on. These show different colors, in this case the first lamp 81 green and the second lamp 82 red lights. Their functionality will be discussed in more detail below.

The patient communication system 10 has a first control button 70 and a second control button 75 on. These are in the stand as non-contact sensors 20th integrated. Their functionality will be discussed in more detail below. Using the control buttons 70 , 75 is made possible for a staff member by simply touching or simply bringing a hand near the respective control button 70 , 75 trigger or operate certain functions.

The patient communication system 10 assigns an interface 90 for connecting an external storage medium. the interface 90 In the present case, it is designed as a USB interface so that a USB stick or another USB-compatible storage medium can be connected. This allows software of the patient communication system to be updated 10 . This will be discussed in more detail below.

2 shows the patient module 40 in an enlarged view. The patient module 40 is on the flexible pipe as shown 45 connected. It has the already mentioned first patient counter 41 and the already mentioned second patient counter 42 on. These patient counters 41 , 42 are present as from the patient module 40 protruding circular segment-shaped elevations made of flexible material so that they can be pressed in by a patient. It has been found that the force still present in fingers such as the thumb in patients even in difficult conditions, for example immediately after an operation, is typically sufficient to operate such patient switches 41 , 42 to use. The necessary force can in particular also be achieved through a suitable choice of material and through a choice of one in the patient counters 41 , 42 the prevailing air pressure.

The patient module 40 can in particular as part of a through the flexible line 45 predetermined area can be freely positioned and thus, for example, placed in a bed of a patient who can thus operate it. The patient can use the patient module for this 40 for example, take it in your hand and press one of the patient counters with your thumb 41 , 42 to press. This enables the patient communication system 10 can be operated in a manner yet to be described.

3 shows schematically an internal connection of the patient communication system 10 . The already mentioned display device 30th is with a control device 50 connected, which is implemented in the present case in the form of a programmable computer. The control device 50 is as shown with the first control button 70 , the second control button 75 , the status display 80 as well as the interface 90 connected. Thus, the control device receives 50 Signals from the control buttons 70 , 75 , the status display can 80 control in such a way that it indicates a certain state and can also be done via the interface 90 with one at the interface 90 connected to the patient communication system 10 external storage medium in order to read in or edit data therefrom.

the interface 90 serves in particular to one in the control device 50 to update stored software or other data. For this purpose, an external storage medium such as a USB stick can be connected to the interface 90 can be connected, whereby the data stored on it can be encrypted, for example, and can be provided with an electronic signature. After connecting the storage medium to the interface 90 checks the control device 50 First the signature by combining a signature stored on the storage medium with one in the control device 50 compares the permanently programmed signature. If the signatures do not match, the data stored on the storage medium will not be processed any further, since the data is obviously unreliable or falsified. If the signatures match, the data is decrypted using a predefined decryption algorithm. If the decryption fails, the data will also be discarded, as the data is obviously not reliable or falsified. If the data can be properly decrypted, they can be used, for example, to read one in the control device 50 to update stored software, whereby new functions or program updates can be uploaded, for example. The data stored on the storage medium can then be accessed by the control device 50 deleted so that they cannot be used a second time.

The patient communication system 10 also has an interface module 60 on which is inside the stand 20th is arranged and therefore in 1 is not specifically seen. The interface module 60 has a first pressure sensor 61 and a second pressure sensor 62 on. These are as shown via a first connection 66 and a second port 67 and further over the flexible line 45 with the two patient counters 41 , 42 connected. A pressure increase caused by pressing one of the two patient switches 41 , 42 is triggered, can thus from the respectively assigned pressure sensor 61 , 62 be recognized.

The interface module 60 also has an electronic control unit 65 which one with the two pressure sensors 61 , 62 connected so by the pressure sensors 61 , 62 signals generated by the control unit as a function of the pressures present 65 can be evaluated. This enables the two patient switches to be actuated 41 , 42 can be recognized, for example as described below with reference to FIG 4th will be described.

As shown are the interface module 60 and the control device 50 communicatively connected to each other. If the patient communication module 10 is started, the control device sends 50 first an electronic identification feature on the interface module 60 . The control unit 65 of the interface module 60 checks the identification feature to see whether it belongs to one in the control unit 65 stored identification feature. If this is the case, there is communication between the control device 50 and the interface module 60 started. If the identification features do not match, communication is refused, which has consequences to be described here.

When the communication is started, that is, when the control device 50 correctly on the interface module using an identification feature 60 the interface module begins 60 thus, continuously status signals to the control device 50 to send. These status signals can assume one of three predefined values. These values are encrypted to prevent unauthorized reading. The status signals are basically sent every 10 ms, whereby the control device 50 every 10 ms it is informed that the interface module 60 is still connected, regardless of an actuation of the patient switch 41 , 42 .

The status signals can each assume one of three specified values. These are a rest value, a first actuation value and a second actuation value. The rest value is always output if one of the two patient switches is not actuated 41 , 42 is recognized. When the first patient switch is detected 41 the first actuation value can be output. When actuation of the second patient switch is recognized 42 the second actuation value can be output. This is discussed below with reference to FIG 4th are described in more detail.

Because of the status signals, which are sent continuously every 10 ms, the interface module 60 continuously informed of its presence, the control device 50 or a software running on it can also continuously recognize whether it is in a patient communication system as intended 10 is executed in which the assigned interface module 60 available is. If the status signals are missing or not even present, this indicates that the software is either being executed outside of a patient communication system or that the interface module has been manipulated in such a way that it no longer corresponds to the originally installed one, i.e. that obviously unauthorized manipulation of the patient communication system 10 were made.

Since in the first case it is evidently a test operation or a demonstration of the software and in the second case further operation of the patient communication system 10 is not responsible, the switches on the control device 50 running software in the absence of the status signals in a trial mode, in which the functionality is still maintained as far as is possible without the patient switches 41, 42, but in which the remaining usage time is limited. This can be set to a period of 30 minutes, for example. At the end of this trial period, the control device will 50 deactivated so that further operation of the software is no longer possible. With this measure it can be prevented that the on the control device 50 running software is copied without authorization or the patient communication system 10 is operated in an unauthorized state that could possibly trigger malfunctions. At the same time, it is made possible that the software is available for testing or demonstration in the trial period, so that a corresponding software can also be distributed to interested parties, for example, who can use it for a predetermined period of time on a trial basis, but then no longer.

4th shows schematically a pressure curve over time in the first patient switch 41 . This also shows which status signals from the interface module 60 to the control device 50 are issued. The time t in milliseconds (ms) is plotted on the horizontal axis. The division takes place in steps of 10 ms, with a measurement of the pressure in the first patient switch every 10 ms 41 through the first pressure sensor 61 takes place. Accordingly, status signals are also sent every 10 ms.

The pressure P of the first patient switch is on the vertical axis 41 presented in arbitrary units. A first triggering threshold value AS1 and a first end threshold value ES1 are also drawn in, which represent pressure threshold values and which represent an actuation of the first patient switch 41 and for detecting an end of actuation of the first patient switch 41 be used.

First, a status signal in the form of a rest signal R is output. Only when the first patient switch is recognized 41 becomes a first actuation value B1 issued. The conditions under which this occurs will be explained below.

As shown, the pressure P starts to rise at a time value of 10 ms. To detect an actuation of the first patient switch 41 In addition to the already mentioned first threshold values AS1, ES1, a first triggering period t _a1 and a first waiting period t _w1 are used. In principle, the first patient switch should be actuated 41 can only be recognized when the pressure P remains above the first triggering threshold value AS1 _{for at least the first triggering period t a1.} If the pressure P falls below the first end threshold value ES1, the end of the actuation is recognized. The first actuation value is between a recognized actuation and a recognized end of the actuation B1 output as a status signal, then the rest value R is output again. After a recognized end of an actuation, ie after the pressure P has fallen below the first end threshold value ES1, the waiting period t _w1 is first waited before an actuation is recognized again. This ensures that there is no accidental double actuation if the patient really only wanted to press once, but not a purely linear pressing of the first patient switch due to his physical weakness 41 creates, but wobbles or trembles. It has been shown that the procedure described here represents particularly good support for patients in the difficult situations described, since they use it to control the patient communication system 10 easy to use.

At a time of 10 ms, the pressure P initially rises and exceeds the first triggering threshold value AS1. However, just about 20 ms later it falls below the first triggering threshold value AS1 again and falls again to a significantly lower value. It therefore does not remain above the first triggering threshold value AS1 for at least the first triggering period t _a1 , which is presently 50 ms, which is why no actuation is recognized in this case.

At about 60 ms, the pressure P rises again and remains above the first triggering threshold value AS1 for a longer period of time. Since this time period is longer than the first triggering time period t _a1 , the first patient switch is actuated 41 recognized and after the end of the first trigger period t _a1 the first actuation value B1 output as a status signal. Between a time of 150 ms and a time of 160 ms, the pressure P drops again and falls below the first end threshold value ES1. As a result, an end of the actuation is recognized and it henceforth the rest value R is output. Immediately thereafter, the pressure P rises again and exceeds the first triggering threshold value AS1 for the first triggering period t _a1 , but at this period the first waiting period t _w1 , which is 1 s, has not yet expired, which is why no actuation is recognized. The rest value R continues to be output as a status signal.

The first waiting period t _w1 ends in the period not shown. At the point in time of 1,500 ms, which is then shown again, it has already expired. If the pressure P then rises again, as shown, and _{remains above the first triggering threshold value AS1 for at least the first triggering period t a1} , an actuation is recognized again and the first actuation value B1 is issued. If the pressure P falls below the first end threshold value ES1 again, the end of the actuation is recognized and the rest value R is output as a status signal. If the pressure rises again immediately afterwards for only a short period of time, _{no actuation is recognized either due to the not yet expired first waiting period t w1} or due to the failure to comply with the first trigger period t _a1 and the rest value R continues to be output as a status signal.

It has been shown that the described procedure enables patients in the described difficult situations to operate the patient communication system particularly well 10 is made possible. Desired actuations are recognized, whereas undesired multiple actuations are avoided. The same principle can be applied to the second patient counter in a corresponding manner 42 can be applied. A second triggering threshold value AS2, a second end threshold value ES2, a second triggering period t _a2 and a second waiting period t _w2 can be used. These values can be identical to the respective first values, but do not have to be. Upon detection of actuation of the second patient switch 42 is then different from the representation of 4th not the first actuation value B1 , but the second actuation value B2 issued.

It should be mentioned that the respective triggering threshold value AS and the respective end threshold value ES can also be selected to be identical, which corresponds to a particularly simple implementation.

With reference to the 5 to 18th Menus and other pages described which on the display device 30th can be displayed. In particular, the control device 50 be configured to display the corresponding menus and to carry out the functions described.

5 shows a main patient selection menu 100 . The main patient selection menu 100 is typically the menu that is displayed when the patient communication system 10 is put into operation, so it starts up, for example, after a power interruption or when it is activated by pressing the first control button 70 is switched to a patient mode. As shown is the main patient selection menu 100 divided into several sectors. In the present case, nine sectors are displayed, which are arranged in three rows, each with three rows. In the bottom line, the left and right sectors are not used. These can be provided for later extensions, for example. They contain a placeholder pictogram, but no label.

In each of the sectors used, a respective patient menu object is displayed, which can be displayed in a respective active or a respective inactive state. The patient menu object in the active state is given a reference symbol 110 designated. The patient menu objects displayed in the inactive state are given reference symbols 120 designated. As shown, each patient menu object has both a text portion and a graphic portion. While the graphic portion does not differ between the active state and the inactive state in the present case, the text portion differs in that the respective patient menu object 110 is displayed in bold font when active. In the inactive state, on the other hand, font not shown in bold is used. The respective inscription or the respective text is present in editable form on the control device 50 saved so that the text can be changed and different languages can be provided. This can in particular be dependent on an adjustable patient speech parameter, ie the in 5 Labels that can be seen can also be displayed in different languages, but with the same picture elements. This will be discussed in more detail below.

The control device 50 is configured to only ever have one patient menu object in the active state 110 and the other patient menu items 120 in the inactive state. Is an actuation of the first patient switch 41 recognized, for example, as referring to 4th described by first actuation signals B1 from the interface module 60 are received, the next patient menu object is used as a patient menu object 110 displayed when active, and all other patient menu items 120 are displayed in the inactive state. A correspondingly modified main patient selection menu 100 after pressing the first patient switch once 41 is for example in 6th shown. It is no longer like in 4th in the upper left sector ("Eating / Drinking"), but in the upper middle sector ("Pain") a patient menu object 110 when active, and in the upper left sector is a patient menu item 120 displayed in the inactive state. Becomes the first patient counter 41 pressed again, the in 7th State of the main patient selection menu shown 100 displayed, with a patient menu item in the upper right sector (“doctor”) 110 is displayed in the active state, whereas a patient menu item is displayed in all other sectors 120 is displayed in the inactive state. It should be understood that if the first patient switch is operated again 41 in the middle left sector ("Care Measures") a patient menu item 110 would be displayed in the active state, then it would switch to the central sector ("Physiotherapy"), then to the middle right sector ("Visite") and then to the lower middle sector ("Family + Social"). Becomes the first patient counter 41 then actuated again, a patient menu object is again in the upper left sector ("Eating / Drinking") 110 displayed in the active state. The central sector is understood to be that sector which is in the second column and in the second row. In the present example, this is labeled "Physiotherapy".

The two inactive sectors, i.e. the lower left sector and the lower right sector, do not play a role in this consideration and can be left out of the picture, since the switching of active patient menu objects 110 happens only within the sectors actually used.

If the patient presses the second patient switch at a certain point in time 42 and if such an actuation is recognized as already described above, then the patient menu object displayed in the active state becomes 110 selected. This can lead to different reactions, which will be discussed in more detail below.

To make operation easier, the text displayed can also be displayed in different colors. In particular, the text of the patient menu object displayed in the active state can be used 110 have a second color and the text of the patient menu objects displayed in each case in the inactive state 120 can be displayed in a first color. The first patient counter then preferably has 41 the first color and the second patient switch 42 prefers the second color. This also signals to the patient by means of color information that he is using the first patient switch 41 to switch to the next, while he can use the second patient switch 42 can use to select. The first color can be blue, for example, and the second color can be red, for example. This has proven itself for an intuitive operation.

8th shows a patient selection menu 105 . This is no longer the main patient selection menu 100 which is in the 5 to 7th is shown, but to another patient selection menu 105 , which the patient arrives at when he selects the patient menu object in the top left in the main patient selection menu, which is labeled "Eating / Drinking". In the patient selection menu 105 There are a total of three sectors used, with a patient menu object in the active state in one sector in the displayed state 110 is displayed, which is labeled with "I want to eat something". In addition, there is a patient menu object in another sector that is used 120 displayed in the inactive state, which is labeled with "I want to drink something". At the top left, in a sector in use, there is a patient menu item 120 displayed in the inactive state, which is labeled with "Back".

Through the first two patient menu objects mentioned 110 , 120 the patient can indicate to the staff that they want to eat or drink something. For this purpose, the patient can, for example, directly use the patient menu object displayed in the active state 110 by means of the second patient counter 42 select, or he can by means of the first patient switch 41 advance so that “I want to have a drink” as a patient menu item 110 is displayed in the active state. Then he can press the second patient switch 42 select the appropriate function. By selecting the patient menu object labeled “Back”, he comes to the main patient selection menu 100 back.

The selection works in the patient selection menu 105 basically equivalent to the main patient selection menu 100 , where for example in 9 a state is shown in which "Back" as a patient menu object 110 is displayed in the active state. For example, the patient has the first patient counter 41 starting from the in 8th State shown actuated twice.

10 shows a personnel selection menu 200 . This is displayed when the patient is in the patient selection menu 105 which is in the 8th and 9 is shown, selects the patient menu object "I want to eat something".

The top left is in a field 210 the word "Back" appears, which of his Display corresponds to a patient menu object displayed in the active state. This signals to the patient that he is by actuating the second patient switch 42 returns to the previous menu, which he can use, for example, when he opens the personnel selection menu 200 which is in 10 has accidentally selected.

Simultaneously with the display of the personnel selection menu 200 of 10 the status display is displayed when the patient menu object “I want to eat something” is activated 80 driven so that it signals a second state. This can be done by activating the second lamp 82 respectively. This signals to the staff that the patient has a need and that interaction with the staff is required. The staff is thus asked to go to the patient.

The personnel selection menu 200 has a display panel 230 in which the wish “I want to eat something” selected by the patient is displayed. This means that the staff knows what the patient wants. Below that are a total of three personnel menu items 220 displayed by the staff by means of touch-sensitive input on the display device 30th can be selected. The first patient counter 41 if this display is deactivated, the second patient switch is deactivated 42 can only be used for the previously mentioned "back" function. The three staff menu items 220 are not accessible to the patient.

The staff can then select, as shown, whether the patient is allowed to eat a soup, is allowed to eat a little or is not allowed to eat anything yet. With a simple touch-sensitive input, the corresponding personnel menu object 220 can be selected, with the exemplary selection of “You are not allowed to eat yet” the in 11 Personnel information page shown 300 is shown. This shows, in addition to a "back" field that is still accessible to the patient 310 , two display fields 330 in which the patient is informed that he is not yet allowed to eat. A personnel information page is thus in particular a page which, after an input by personnel, provides the patient with information that ultimately goes back to the personnel.

After such an operation and when the patient has understood the corresponding message, the operating personnel can, for example, press the first operating button 70 press to activate the patient communication system 10 switch back to a patient mode. This causes the status indicator 80 indicates the first state, in particular by lighting up the first lamp 81 and extinguishing the second lamp 82 . Furthermore, such an actuation of the first control button is responded to 70 this in 5 main patient selection menu shown 100 displayed, which enables the patient to enter data independently of the staff. As a result, the staff who interacted with the patient as explained, for example, can use the patient communication system 10 with a simple movement switch back to a defined state in which it is available to the patient.

12th shows an example of a patient information page 400 which, in addition to a “back” patient menu object 410 that is still accessible as described above, has a display field 430 in which the current time is displayed. This can be displayed, for example, when the patient selects a patient menu object in a patient selection menu by means of which the current time is to be displayed. In this way, the patient can, for example, have the current time displayed without the need for personnel to be deployed. A patient information page is thus in particular a page which, after input by the patient, provides the patient with information that was ultimately requested by the patient.

13th shows a main personnel selection menu 500 . This is displayed when the second control button 75 is actuated, whereby the patient communication system 10 is switched to a personal mode.

First of all, there is a first language selection field below 501 and a second language selection field 502 . Using the first language selection field 501 a patient language can be selected, with an associated patient language parameter in the control device 50 is set. Likewise, using the second language selection field 502 a personal language can be selected, with an associated personal language parameter in the control device 50 is set. All texts of fields and menu objects are stored in the selectable languages for both the patient and the staff, so that staff and patient can communicate with one another even if they have completely different language skills. Examples are explained below.

At the bottom right there is a "Exit" field 503 , with which the currently running software can be terminated. This can then be started again, for example, or programs for maintenance or for executing other functionalities can be started. Again to the right there is a "Switch off" field 504 , by means of which the patient communication system 10 can be shut down and turned off.

This in 13th Main personnel selection menu shown 500 has a total of seven staff menu items 512 which are displayed in only one state in the present case. The selection is made here by touch-sensitive input on the display device 30th . The two patient counters 41 , 42 are deactivated for this display, so they cannot perform any switching functions and an actuation remains undetected.

The staff can thus one of the staff menu items 512 and thus branch into different functions. The respective texts of the personnel menu objects 512 are in accordance with the display 13th displayed in English, which corresponds to a selected personal language English.

For example, if an operator selects the personnel menu item displayed at the top left 512 which is labeled "Eat / Drink", it will be in 14th Personnel selection menu shown 505 displayed. It should be understood that a state is shown here in which German is selected for both languages. The personnel selection menu 505 is on the left side of the display device 30th and allows the staff to make further choices. A distinction is now also made between a personnel menu object displayed in the active state 510 and personnel menu items displayed in the inactive state 520 . An operator can use one of the personnel menu objects 510 , 520 Select and thus display specific information to the patient or ask a question. For example, if he chooses the in 14th Personnel menu object displayed in the active state 510 which is labeled with the text “Are you thirsty?”, a patient response menu appears to the right of it 600 displayed. The patient response menu 600 has a display panel 630 which displays the question “Are you thirsty?”.

The patient response menu 600 also has three patient response objects, one of which is patient response object 610 is displayed in the active state and the other two patient response objects 620 are displayed in the inactive state. The patient can now use his first patient switch 41 Switch to the next and thus display one of the three patient response objects in the active state. Then he can use his second patient counter 42 Use to select the patient response object displayed while active 610 to select. "Yes", "No" and "Not understood" are available as answer options.

For example, if the patient selects “Yes”, ie he presses the first patient switch 41 if necessary, until the patient response object labeled "Yes" 610 is displayed in the active state and then presses the second patient switch 42 , so the in 15th next to the personnel selection menu 505 patient response page on the right 700 displayed. Thereby are in display fields 730 the question and the selected answer “Yes” are displayed. Also the patient response page 700 is present next to the personnel selection menu 505 displayed.

The procedure just described in the personnel mode enables an operator, for example a hospital employee, to ask the patient whether he is thirsty and to receive an answer from him. This can take place without any linguistic communication and can be done with languages adapted to the operator and the patient. Corresponding communication between hospital staff and patient can thus take place independently of a restriction of the patient in speaking and / or hearing and independently of language barriers, the patient being able to perceive corresponding information and questions visually and by means of the two patient counters 41 , 42 can answer in a simple way.

16 shows a personnel selection menu 505 which is displayed when in the personnel main selection menu 500 of 13th the upper right staff menu object 512 which is labeled "Doctor" is selected and then German is selected as the personal language. The personnel selection menu 505 of 16 shows a plurality of personal menu items 510 , 520 on, whereby one, which with the reference number 510 is indicated, is indicated in the active state and the others, which are indicated by reference numerals 520 are indicated in the inactive state. The staff menu objects 510 , 520 presently enable an operator to ask medical questions or give medical instructions in a targeted manner.

In the state shown is a personnel menu object 510 , which is labeled with "Please press my hand", selected and thus displayed in the active state. A touch-sensitive input can be used for this. Arabic has now been selected as the patient language. Thus, to the right of it, there is a personal information page 300 with a display panel 330 is displayed on which the instruction "Please press my hand" is displayed in Arabic, among other things. This allows, for example, a doctor to easily prompt a patient who only speaks Arabic to shake a hand without the doctor having to speak Arabic to do so.

17th already shows this in 16 Personnel selection menu shown 505 , being another staff menu object 510 is displayed in the active state. It is labeled “I will examine you now”. Correspondingly, to the right of this is an associated personal information page 300 displayed. Since English is set as the patient language in this example, the associated information is not displayed in Arabic, but in English, again in the display field provided for this purpose 330 .

In 18th is another personnel selection menu 505 shown, which is displayed when in the personnel main selection menu 500 "Care measures" or "Care Measures" is selected. There is a personnel menu object 510 in the active state after a corresponding selection is displayed, which is labeled with “Are you getting good air?”. Accordingly, after this selection, a patient response menu appears on the right 600 with an associated display field 630 , in which the question is displayed in English and German, and three patient answer objects 610 , 620 displayed. One of the patient response objects 610 is displayed in the active state and the other patient response objects 620 are displayed in the inactive state. In turn, the patient can use his first patient counter 41 to select which of the patient response objects should be displayed in the active state and can then be used to select the corresponding patient response object displayed in the active state 610 the second patient counter 42 to press. As a result, a patient response page (not shown) can again be displayed, which gives the doctor feedback in his own language. In the present case, the patient can choose between “Yes”, “No” and “not understood”. The communication shown here thus enables a doctor who only speaks German, for example, to ask an English-speaking patient whether he is breathing well, and the patient can answer the question using his patient counter 41 , 42 answer. It is not necessary for the patient to be able to speak or hear.

Overall, the patient communication system described here enables very good communication between doctors, nursing staff and other hospital employees on the one hand and patients on the other. For this, the most basic movement abilities of one hand or at least one finger in the patient are sufficient; an ability to speak or hear is not required on the patient's side. In addition, by setting the language parameters, both on the staff side and on the patient side, language barriers can easily be overcome, i.e. staff and patient can communicate with each other even if they do not speak a language together. Communication with patients in very difficult situations, for example in intensive care units and / or after particularly serious surgical interventions or accidents, can be greatly improved in this way, so that the patient feels better according to the circumstances and recovery can be supported.

Mentioned steps of the method according to the invention can be carried out in the order given. However, they can also be carried out in a different order if this is technically sensible. The method according to the invention can be carried out in one of its embodiments, for example with a specific combination of steps, in such a way that no further steps are carried out. In principle, however, further steps can also be carried out, including those which are not mentioned.

It should be pointed out that features can be described in combination in the claims and in the description, for example to facilitate understanding, although these can also be used separately from one another. The person skilled in the art recognizes that such features can also be combined with other features or combinations of features independently of one another.

References back in subclaims can identify preferred combinations of the respective features, but do not exclude other combinations of features.

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 202010014777 U1 [0003]

Claims (16)

A method for recognizing actuation of a compressed air switch (41, 42) of a patient communication system (10), the method comprising the following steps: - measuring a pressure prevailing in the compressed air switch (41, 42), - recognizing an actuation when the pressure has been used for a triggering period ( t _a ) exceeds a triggering threshold value (AS), - recognition of the end of actuation if the pressure falls below an end threshold value (ES) after actuation is recognized, - after the end of actuation, further actuation is recognized at the earliest after a waiting period (t _w ) has elapsed. Procedure according to Claim 1 , - The pressure is measured at constant time intervals. Method according to one of the preceding claims, - where the trigger threshold value (AS) corresponds to the end threshold value (ES). Method according to one of the preceding claims, - The triggering threshold value (AS) and / or the end threshold value (ES) being tracked as a function of an ambient air pressure. Method according to one of the preceding claims, - wherein the trigger period (t _a ) is greater than 10 ms, greater than 20 ms, greater than 30 ms, or greater than 40 ms, and / or - wherein the trigger period (t _a ) is less than 60 ms, less than 70 ms, less than 80 ms, less than 90 ms or less than 100 ms, and / or - the triggering period (t _a ) being 50 ms. Method according to one of the preceding claims, - wherein the waiting period (t _w ) is greater than 0.5 s, greater than 0.6 s, greater than 0.7 s, greater than 0.8 s or greater than 0.9 s , and / or - where the waiting period (t _w ) is less than 1.1 s, less than 1.2 s, less than 1.3 s, less than 1.4 s or less than 1.5 s, and / or - where the waiting period (t _w ) is 1 s. Method for detecting first actuations of a first compressed air switch (41) of a patient communication system (10) and second actuations of a second compressed air switch (42) of the patient communication system (10), - wherein first actuations of the first compressed air switch (41) by means of a method according to one of the preceding claims with a first trigger period (t _a1 ), a first trigger threshold value (AS1), a first waiting period (t _w1 ) and a first end threshold value (ES1), and - with second actuations of the second compressed air switch (42) by means of a method according to one of the preceding claims with a second trigger period (t _a2 ), a second trigger threshold value (AS2), a second waiting period (t _w2 ) and a second end threshold value (ES2) are recognized. Procedure according to Claim 7 - where the first release period (t _a1 ) corresponds to the second release period (t _a2 ), and / or - where the first release threshold value (AS1) corresponds to the second release threshold value (AS2), and / or - where the first waiting period (t _w1 ) corresponds to the second waiting period (t _w2 ), and / or - the first end threshold value (ES1) corresponding to the second end threshold value (ES2). Method according to one of the Claims 7 or 8th - The method is carried out in an interface module (60) to which the first compressed air switch (41) and the second compressed air switch (42) are pneumatically connected, - the interface module (60) with a control device (50) of the patient communication system (10 ) is communicatively connected. Method according to one of the Claims 7 to 9 - state signals are continuously output which can assume a rest value (R), a first actuation value (B1) and a second actuation value (B2), - the first actuation value (B1) being in response to a recognized actuation of the first compressed air switch (41) is output, - the second actuation value (B2) being output in response to a recognized actuation of the second compressed air switch (42), - otherwise the rest value (R) being output. Procedure according to Claim 10 - wherein the first actuation value (B1) is output until the end of the actuation of the first compressed air switch (41) has been recognized, and / or - the second actuation value (B2) is output until the end of the actuation of the second compressed air switch (42 ) was recognized. Method according to one of the Claims 10 or 11 - The status signals are output at constant time intervals. Interface module (60) for a patient communication system (10), the interface module (60) having the following: - a connection (66) for a first compressed air switch (41), - a first pressure sensor (61) for measuring a pressure in the first compressed air switch (41) prevailing pressure, - a connection (67) for a second compressed air switch (42), - a second pressure sensor (62) for measuring a pressure prevailing in the second compressed air switch (42), - an electronic control unit (65) which is configured to do so Method according to one of the Claims 7 to 12th to execute. Patient communication system (10), comprising - a display device (30), - a control device (50), - a first patient switch, which is designed as a first compressed air switch (41), - a second patient switch, which is designed as a second compressed air switch (42), - An interface module (60) according to Claim 13 - wherein the compressed air switches (41, 42) are connected to the interface module (60), and - wherein the interface module (60) is communicatively connected to the control device (50). Patient communication system (10) Claim 14 - wherein the electronic control unit (65) of the interface module (60) is configured to implement a method according to one of the Claims 10 to 12th and to send the status signals to the control device (50), - and wherein the control device (50) is configured to restrict a functionality of the control device (50) or to deactivate the control device (50) in the absence of status signals for a predetermined trial period. Patient communication system (10) according to one of the Claims 14 or 15th - wherein the control device (50) has an electronic identification feature, - wherein the control device (50) is configured to send the identification feature to the interface module (60) at startup, - wherein the electronic control unit (65) of the interface module (60) is configured to only start and / or only send status signals after the identification feature has been verified as valid.

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