EP2795494A2

EP2795494A2 - Method and device for preparing medical treatment devices

Info

Publication number: EP2795494A2
Application number: EP12813273.5A
Authority: EP
Inventors: Erik Griessmann; Frank Hedmann; Joachim Wich-Heiter
Original assignee: Fresenius Medical Care Deutschland GmbH
Current assignee: Fresenius Medical Care Deutschland GmbH
Priority date: 2011-12-20
Filing date: 2012-12-17
Publication date: 2014-10-29
Also published as: JP2015502826A; KR20140104434A; WO2013091814A3; WO2013091814A2; AU2012359171A1; JP2018038888A; US20130172806A1; JP6567635B2; DE102011121668A1; BR112014014045A2; KR102067298B1

Abstract

The invention relates to the field of controlling medical treatment devices, in particular dialysis equipment. The aim of the invention is to make the control of medical treatment devices more flexible and more convenient and to extend the possibility of programming and outputting individual handling instructions. Said aim is achieved in that individual front ends are available for the treatment and for the medical treatment device, which front ends said create a phase list on external equipment that controls the medical treatment device and is transferred to the medical treatment device.

Description

Method and device for preparing medical

treatment devices

Technical area

The invention relates to the field of preparation of medical treatment devices.

State of the art

Medical treatment devices are in particular blood treatment devices. Blood treatment devices include dialysis machines that are subdividable into hemodialysis machines and machines for performing automated peritoneal dialysis. Dialysis is a procedure for purifying the blood of patients with acute or chronic renal insufficiency. Basically, a distinction is made here between methods with an extracorporeal blood circulation, such as hemodialysis, hemofiltration or hemodiafiltration (hereinafter referred to as hemodialysis) and peritoneal dialysis, which has no extracorporeal blood circulation.

The blood is passed in hemodialysis in an extracorporeal circuit through the blood chamber of a dialyzer, which is separated by a semipermeable membrane of a dialysis fluid chamber. The dialysis fluid chamber is flowed through by a dialysis fluid containing the blood electrolytes in a specific concentration. The substance concentration of the dialysis fluid corresponds to the concentration of the blood of a healthy person. During the treatment, the patient's blood and the dialysis fluid on either side of the membrane are generally passed countercurrently at a predetermined flow rate. The urinary substances diffuse through the membrane from the blood chamber into the dialysis fluid chamber, while at the same time electrolytes present in the blood and in the dialysis fluid diffuse from the chamber of higher concentration to the chamber of lower concentration. If a pressure gradient from the blood side to the dialysate side is established on the dialysis membrane, for example by a pump which removes dialysate from the dialysate circuit downstream of the dialysis filter on the dialysate side, water passes from the patient's blood via the dialysis membrane into the dialysate circuit. This process of ultrafiltration leads to a desired drainage of the patient's blood.

1

CONFIRMATION COPY In hemofiltration, ultrafiltrate is withdrawn from the patient's blood by applying a transmembrane pressure in the dialyzer, without dialysis fluid being conducted past the side of the membrane of the dialyzer opposite the patient's blood. In addition, a sterile and pyrogen-free substituate solution can be added to the patient's blood. Depending on whether this Substituatslösung is added upstream of the dialyzer or downstream, it is called pre- or post-dilution. The mass transfer occurs convectively during hemofiltration.

Hemodiafiltration combines the methods of hemodialysis and hemofiltration. There is both a diffusive mass transfer between the patient's blood and dialysis fluid via the semipermeable membrane of a dialyzer, as well as a filtration of plasma water by a pressure gradient at the membrane of the dialyzer.

Plasmapheresis is a process whereby blood plasma is separated from corpuscular blood components (cells). The separated blood plasma is purified or replaced with a substitution solution and returned to the patient.

In peritoneal dialysis, the abdominal cavity of a patient is filled via a guided through the abdominal wall catheter with a dialysis fluid, which has a concentration gradient with respect to the body's own fluids. Via the peritoneum acting as a membrane, the toxins present in the body pass into the abdominal cavity. After a few hours, the now spent dialysis fluid in the abdominal cavity of the patient is exchanged. Osmotic processes allow water from the patient's blood to pass through the peritoneum into the dialysis fluid and drain the patient.

The methods of dialysis are usually carried out with the aid of automatic dialysis machines, such as those marketed by the applicant under the name 5008 or sleep.safe.

Automatic dialysis machines are microprocessor-controlled medical treatment devices. The course of treatment is usually software-controlled. The user can often intervene in the treatment process by entering parameters via a user interface. The user interface is often a touchscreen display. The invention is described below using the example of automatic peritoneal dialysis devices as a representative embodiment of medical treatment devices. Other medical treatment devices to which the invention is applicable are, for example, infusion apparatuses or cardiac lung machines.

In continuous ambulatory peritoneal dialysis (CAPD), via a permanently implanted peritoneal catheter and a bypass tube system, dialysis fluid from a foil pouch is generally injected into the peritoneal cavity under the influence of gravity, i. H. the abdominal cavity of the patient is required. The dialysate remains in the abdominal cavity for several hours. At the end of this cycle, the dialysate is removed again via the hose system. For this purpose, no automated device is usually necessary. In contrast, automatic peritoneal dialysis uses a device that is usually microprocessor-controlled. Among other things, the heating of the dialysate and its supply and removal is carried out in several cycles automated. For this purpose, such a device is equipped with valves, heaters and pumps. In addition, it can be provided that such a device also automatically extracts samples of the effluent dialysis fluid and transfers it to specific sample containers, for example bags. Likewise, a device for automatic peritoneal dialysis can be equipped with sensors, for example conductivity or temperature sensors for checking the inflowing and outflowing dialysate, or pressure sensors for determining the intraperitoneal pressure.

Intraperitoneal pressure refers to the internal pressure of the peritoneum that results from filling the peritoneal cavity with dialysate and creating a counter pressure on the peritoneum, which in turn can be used to determine the ideal degree of filling for the individual patient , The provision of the pressure measuring device allows a pressure-controlled filling of the abdominal cavity by utilizing the individually existing volume.

The course of peritoneal dialysis is individual for each patient and is prescribed by a doctor. Such a medical treatment is a prescription.

A prescription often involves cyclical processes. A single cycle has so far often been determined by the following parameters:

Type, amount and temperature of the inflowing dialysis fluid Dwell time of the dialysis fluid in the peritoneal cavity

• Outflow rate when removing the dialysis fluid from the peritoneal cavity

• Sampling and analysis of the sample.

The number of cycles can vary, and different parameters can apply to each individual cycle. It should be noted that treatments with other embodiments for medical treatment devices are subject to different procedures.

Often, it is desirable to give the patient instructions during the treatment, or to issue messages, or to permit interaction with the patient, for example, by allowing a patient to select and respond to certain questions that are being issued. This type of input and output of information during the treatment is called the message phase in the context of the invention and so far not provided in the prior art. To enter the parameters into a dialysis machine often a device-internal user interface is used, which is often designed as a touch screen. For example, DE 2010 000 5745 shows an automatic peritoneal dialysis machine having a touch screen as a user interface. Specific programming programs (hereafter referred to as frontends) are often used to program the treatment processes on the medical devices themselves, which are executed internally and often have a reduced operating comfort and limited flexibility compared with conventional programs that are executed on personal computers exhibit. In this case, the operator can program the course of the treatment, for example by parameterizing certain predetermined parameter keys. Parameter keys are assigned to specific processes of the treatment process. Thus, for example, the parameter "initial drain" can be assigned to the process "initial removal of the dialysis fluid from the peritoneal cavity". By assigning a parameter value to a parameter key, the description of a specific treatment phase is completed. For example, the parameter value "initial_drain" can be assigned the parameter value 2000000 (μΐ), which means that the volume of the expiring dialysate should be 2 liters. For the purposes of the invention, a frontend means an input option for certain parameter keys and parameter values, which is embodied as software that includes a subordinate interpreter program that generates from the inputs a phase list that can be processed by the medical device. A phase list describes the timing of a treatment and defines periods of time during which the medical device should perform certain actions. Often, the course of treatment can be changed on the basis of certain predefined processes in which certain parameter values, for example the duration of a specific phase, are assigned to the fixed sequences.

In practice, in peritoneal dialysis, in addition to simple (cycle-based treatments) but also very complex (for example, different profiles per treatment phase) treatment courses are found. The programming of such complex treatment procedures is very cumbersome with the standard frontends provided in medical devices, especially in automatic peritoneal dialysis devices. Although it is basically possible to replace the standard front ends in medical devices with new, more sophisticated front ends, this makes the intervention of service technicians necessary, which is cumbersome and expensive. For the safety of medical devices, it is forbidden to import software by the user himself. In the case of automatic peritoneal dialysis devices, such an update by service technicians would be enormously cost-intensive and expensive, since there are thousands of devices of dialysis-dependent patients who often operate such a device at home.

Another aspect of medical device preparation involves the programming of standardized tests. Such tests serve to obtain medical data of the patient and include standardized treatment steps. For example, a so-called peritoneal equilibration test (peritoneal equilibration test) comprises cycles of predetermined duration during which the patient's peritoneal space is supplied with dialysate or discharged therefrom, blood samples or dialysate samples of the patient being removed at specific times, which are taken from the laboratory to be examined. In this case, these PE tests differentiate in the total duration, ie there are short and long PE tests. The result of such PE tests makes a statement about the kidney function, the filter function of the peritoneum and the dialysis reaction of the respective patient and can lead to a corresponding individual prescription. The simple one Programming such tests, and in particular the combination of such tests with the above-described news phase, have not hitherto been provided in the prior art.

Detailed description of the invention

The invention is therefore based on the object to make the preparation of medical treatment devices more flexible and comfortable and to expand the ability to program and output individual message phases. In addition, the programming and preparation of medical tests, in particular PE tests, should be simplified.

According to the invention this object is achieved by the method of claim 1 and the devices of claims 16, 17 and 20. Advantageous embodiments are the subject of the dependent claims.

The preparation of the medical treatment device, in particular of a device for automatic peritoneal dialysis, is to be understood in particular as the definition of the time sequence of a later treatment. This procedure is usually determined by a doctor, the doctor thus prescribes an individual for a specific patient process of treatment, which makes an individual configuration of the medical device necessary.

This configuration of the medical device is always performed before the treatment. It can, since it i.d.R. rarely changes, also stored in the device for multiple treatments and selected in case of treatment. It is essential that the configuration of the medical device does not mean the start of the treatment, but merely determines the course of a later treatment.

In order to convert a medical treatment prescription into a configuration of the medical device, a multiplicity of frontends is provided according to the invention. These frontends are software-executable input options for certain parameter keys and their associated parameter values. Each front end is an interprete rogramm underlying, which transfers the inputs into a processable from the medical device list of phases that configures the medical device. Frontend and interpreter program form a functional unit. One or a plurality of frontends can be stored as Compute rogrammprodukt in any storage medium and distributed in any way, for example, as a file on a USB stick or as a file download from a server. The compute rogrammprodukt, operated on any microprocessor, can perform the described method steps.

The plurality of front ends differ in at least one of a variety of features, which features may include the type of medical treatment device, the purpose of the treatment, the location of the treatment, and / or the user of the front end. To uniquely identify the front ends, each frontend can be assigned a frontend identification number (frontend ID).

Entering multiple parameter key parameter values pairs into a front end form a model for the course of the treatment or for the expiration of a phase of the treatment. Table 1 shows an example of the input possibilities (parameter key) of a front end of an automatic peritoneal dialysis machine with the exemplary front end ID 1.

Table 1 - List of input options of the frontend with the frontend ID 1: The user entering the prescription in the frontend now selects from the list of possible inputs (parameter keys) those that correspond to the prescription and assigns parameter values according to the prescription. This results in a model of the prescription, which can be saved as a text file.

An interpreter below the frontend determines a corresponding phase list from the concrete entries in this text file. In this case, a phase list describes the sequence of phases, with the phase meaning an unambiguous configuration assigned to the corresponding device. Such a phase is defined, for example, by the time period and the configuration in which the device pumps dialysate out of the peritoneal space of a patient. Thus, from the total treatment duration, the total treatment volume and the dialysis solutions available, a phase sequence corresponding to the treatment model can be determined, as shown in Table 2.

Table 2:

This list can also be saved in a file. Advantageously, both lists are stored in a file.

The frontend and the underlying interpreter are often part of the medical device. Entries are accordingly made via the user interface, often as a touchscreen display. Changes to the frontend itself, such as an update of the software or adding parameter keys are not possible without significant interference with the medical device. Thus, the new software would have to be installed in every medical device, which can usually only be done by technically trained service personnel. In addition, the front-ends, for example, are regionally individualized, for example with regard to the language used, as well as with regard to the possible parameter keys. It may happen, for example, that certain prescriptions are allowed for one country, while they are not provided for another country, for example for reasons of admission, or because this particular treatment is not taken over by the health insurance funds there. The medical devices must therefore be equipped for each country with individual front-end software, which means a high production cost.

Furthermore, there may be a difference in whether the front ends are to be used for patient use, or whether they are intended for medical or technical personnel. Accordingly, front-ends for patients with limited or front-ends for medical or technical personnel can be equipped with extended functionality and / or layout. Another distinguishing feature for the frontends to be selected can also be whether the device is in a medical environment (medical or dialysis practice, hospital, university), at home or in the technical service environment.

This results in a variety of individual front ends with which each device can be equipped. This custom equipment of a variety of devices with frontends held therein, which can also change many times, means a high production and logistics costs.

According to the invention, this disadvantage is overcome in that a large number of frontends can be stored or generated with freely selectable parameter key sets for preferential use in external devices whose subordinate interpreter converts the respective parameter keys into a phase list which can always be processed for the respective medical device. The language of the user interface of the frontend is freely selectable. The external device is preferably a device comprising a microprocessor unit, an input device and an interface for data communication with external storage media, wherein microprocessor unit, input device and interface are connected to each other in terms of data technology. The interface to data technology Communication with external storage media may be, for example, a USB port to read and write to USB sticks. However, it can also be any other interface that is suitable for addressing external storage media, in particular also interfaces that can read and write patient cards.

Explicit in the meaning of the invention, all devices, comprising a microprocessor unit, an input device and an interface for data communication with external storage media, wherein microprocessor unit, input device and interface are connected to each other in terms of data, disclosed whose microprocessor unit is programmed so that they are in the claims perform claimed method.

Patient cards are clearly maps assigned to a specific patient with a readable and writable memory on which, for example, treatment data such as the prescription of a dialysis drug can be stored. According to the invention, the configuration file generated by the frontend and the subordinate interpreter can be stored on this card. In addition, patient cards can also be so-called smart cards which, in addition to the memory, also comprise at least one microprocessor. A patient card may also be designed to have several different interfaces for communicating with external devices. For example, a patient card may have an interface that operates according to the Inter-Integrated Circuit (I2C) data communication protocol and has a corresponding contact configuration to exchange data with an external device and additionally have at least one interface that is in accordance with another data transmission protocol and / or another Contact configuration works. For example, parallel data transmission protocols, Bluetooth or other radio-based data transmission protocols, magnetic strips, chip module contact areas and the like may be conceivable. Such a patient card is universally applicable and can advantageously be used in several devices, even if these devices have different interfaces and / or data transmission protocols for communication with the patient card.

For example, it may happen that, for example, a patient changes a medical device which he uses for a therapy over time or has to use a different medical device at times, for example during a journey, than the device which he is using normally uses. However, the various medical devices are not necessarily equipped with the same interfaces or data transmission protocols. A patient card with a plurality of interfaces and / or data transfer protocols can advantageously communicate with different medical devices and facilitate treatment in such a situation. However, external storage media may also be storage in the medical device itself. An interface for addressing these memories is, for example, a network interface which can be wired or wireless. In this way, the external device can store the configuration file generated by the frontend and the subordinate interpreter directly in the memory of the medical device to be configured.

The external device that executes the frontend and the subordinate interpreter is often a so-called personal computer. Personal computers are understood in this context stationary desktop computers or mobile devices such as laptops, netbooks or the like.

It is also conceivable that the external device is a SmartPhone or a Notepad. In addition, the external device can also be a combination of terminal and central device, running on the front end and lower-level interpreter and addressed via the terminal.

If the frontend ID of the configuration file is identical to the frontend ID of the frontend stored in the medical device, there is no difference between the parameter lists that are used for the same prescription from the internal frontend and the parameter list from the identical frontend on one external device has been created. The internal interpreter could convert this parameter list into a phase list, for example, if the phase list to be read in can not be read correctly. An essential advantage of the invention is the separation between parameterized parameter key list and the phase list generated therefrom. While the parameterized parameter key list is independent of the medical device and generated by the respective frontend, the phase list is characteristic of the medical device. This means that the lower-level interpreter transfers the parameterized parameter key list to a phase list that can always process the medical device to be configured. The interpreter acts as a translator between the (sophisticated) Frontend language whose vocabulary corresponds to the totality of all possible parameter keys and parameter values, and the language of the medical device.

It is possible that instead of the phase list as a text file, a machine-readable code is generated by the interpreter and transferred in the same way to the medical device. The advantage of such a solution is that microprocessor-controlled machines, as are common medical devices, are directly programmable by machine-readable code without requiring an operating system to translate a text file into machine-readable code. Often, this transformation of a text file, such as a list of phases, into a machine-readable code is subject to operating system limitations. This may apply in particular to software-controlled medical devices. These limitations can be avoided by generating the machine-readable code not in the medical device itself but by more sophisticated programs executing on external devices.

Another embodiment of the invention provides for using graphical user interface frontends. Graphical user interfaces for generating flowcharts are known in the art. Instead of entering cryptic text commands, the graphic input selects symbols that describe a corresponding action. For example, instead of typing "initial_drain (100000)" into a text editor of a frontend, a symbol, such as a rectangle with a corresponding icon, can be selected and linked to other symbols, such as a link to a line corresponding parameter value are assigned, for example by mouse click and corresponding input of the parameter value.

A further embodiment of the invention provides for the phase list to be extended by a phase of the output of messages preferably addressed to the patient (message phase). Here, among the messages addressed to the patient are outputs on a screen, other optical signals such as lamps, haptic signals, for example, vibrations of suitable devices, or acoustic signals such as sounds or speech output via loudspeaker.

The internal front ends of medical devices, particularly automatic peritoneal dialysis devices, have not yet provided the ability to generate freely-generated messages to be displayed by the medical device display device program. Such messages are, for example, text messages that are displayed on a screen. It may be advantageous for the treatment on a medical device to convey certain messages to the patient. In peritoneal dialysis, for example, the patient may be asked to lie down or get up. In addition, the patient may be asked to take a certain medication. Such messages may be based on a prescription, or may be output depending on measurements such as patient readings such as blood pressure, body temperature, pulse rate, or the like that the medical device determines or receives during treatment. It may be provided that certain messages request input from the patient, for example, the message requesting the patient to take a particular medication may further prompt for confirmation of the medication being taken on the device. This can be done, for example, by pressing a certain user input option, such as the pressure on a specific key or on a specific area of a touch screen display.

It is also conceivable that in the event that certain measured values exceed limit values, the medical device not only outputs a message to the patient, but alternatively alerts medical specialists via communication means. The reserved communication means include, for example, pager messages, SMS messages or e-mail communication. In addition, in the event that certain measurements exceed limits, the medical device may interfere with the course of treatment, for example speeding up or slowing down the treatment.

The message phase is associated with at least one additional key parameter (eg "event") .The parameter value may be the message to be output, for example free selectable text, preferably written by healthcare professionals It may also be provided that the message is only displayed for a defined time, but the parameter value may also refer to a file containing a plurality of information output and / or information input in initiated the medical device.

For example, the news phase may include the output of graphics, sounds such as music, or voice output, animations, or video. In addition, it is provided that in the news phase, information is also recorded. Such information may be manual input from the operator or the patient. These can be done by suitable input means, such as keyboards, touch screens or the like. Also conceivable are audio recordings for the input of spoken or acoustic information, video recordings for the input of visual information, or measured values which may preferably include physiological parameters of a patient, such as body temperature, body weight or blood pressure. For this purpose, sensors such as microphones, cameras, temperature sensors, scales or blood pressure sensors, which may be provided on the medical device used.

Through the possibility of information input and output during the news phase, a dialogue between human and device can take place, which offers a variety of applications.

A particularly advantageous application is the documentation of a treatment. Here, both the technical treatment parameters, which can be described by the phase list, as well as the reaction of the patient, which can be recorded in the news phase, documented. For example, in the news phase, the patient's subjective state of health may be prompted, for example, by issuing the message "How are you?" (Visually or acoustically) .The patient then has the opportunity to respond to this question It can also be provided that individual answers of the patient can be entered, for example as text input via a keyboard, which can also be a virtual keyboard on a touchscreen. It may also be provided that the patient can respond in his own language, the speech being input by audio recording.

Regardless of how the patient's response is documented, it is essential that the answer be clearly associated with the patient and treatment circumstances. In addition to the storage of the treatment parameters, this also includes the storage of at least one patient identification feature, such as a patient number, as well as the exact date and the exact time at which the answer is entered. The assignment of an anonymous identification feature to a specific patient is then particular beneficial if anonymous medical studies are performed. However, the name of the patient can also be saved.

The resulting data record is stored in suitable means. These means may include common storage media such as hard drives, USB sticks, or the like, as well as the use of patient cards or sending the data to remote devices such as servers or smartphones. By transferring the treatment documentation to, for example, the attending physician, a medical report is prepared which conveniently allows the attending physician to evaluate the patient's treatment and, if necessary, to change the prescription for the next treatment. This prescription can be done comfortably in the manner already described by the use of an external front end at the doctor himself. Subsequently, a phase list corresponding to the new prescription can be transferred to the corresponding medical device. By means of this new possibility of interaction between treating physician and patient via the use of external front ends and the introduction of a news phase, the treatment can be improved in a particularly advantageous manner. The patient can document his impressions through the news phase immediately during the treatment, even when using audio recordings in his own words without cumbersome text input, which is particularly advantageous when the treatment is performed while lying down, or in persons who do not read or write can. This ensures that every detail of the condition of the patient is documented, which otherwise could be forgotten in conversation with the attending physician after hours or days after treatment. Another advantage is that the doctor can change the prescription promptly. Especially with the peritoneal dialysis, which takes place daily, the doctor can respond in good time to the feedback from the patient, which is documented by the news phase, which he usually could not do much later at doctor visits. The safety and comfort of treatment are thus significantly increased.

The embodiments of the invention are further set forth in the detailed description of the figures. Brief description of the figures

In the following, exemplary embodiments of the present invention will be described with reference to the following figures:

FIG. 1 schematically shows a medical device designed as a device for automatic peritoneal dialysis and, according to the invention, a device designed as a desktop computer for generating a parameter key list and a phase list;

Figure 2 shows schematically the exemplary image content of a screen of a device which executes a front end according to the invention, which processes text inputs;

Figure 3 shows schematically the exemplary image content of a screen of a device which performs a front end according to the invention, which also processes symbolic inputs;

FIG. 4 schematically shows a diagram illustrating the sequence of a PE test.

Detailed description of the figures

The present invention will be described in detail below with reference to the figures.

The same reference numerals are used for the same components.

FIG. 1 schematically shows a device 10 for automatic peritoneal dialysis and an external device 12, embodied here as a desktop computer, for the generation according to the invention of a parameter key list and a phase list. Patient 120 is often at home. Patient 120 and automatic peritoneal dialysis device 10 interact during treatment by medical tubing not shown in FIG.

The core of the invention is not the treatment itself, but their preparation. The

Figure 1 therefore shows no treatment situation.

It is essential that the medical device 11 and the external device 12 need not be close to each other. In FIG. 1, this is indicated by the different spaces 101 and 102. The external device 12 may, for example, be present in a medical environment, in a clinic, in a doctor's office or even in a university. The location of the external device 12 does not matter. The programming of a prescription is therefore independent of the presence of the medical device itself. The external device 12 is equipped with a plurality of input devices 13 in the embodiment illustrated in FIG. These are in Figure 1, a computer keyboard and a computer mouse. Such computer input devices are common compared to a touch screen, as it is often used in medical devices for input, comfortable.

The generation of the parameter key list and the phase list is carried out according to the invention on the external device 12. For this purpose, a front end is used according to the invention. Both lists can be stored in one or more files. Moreover, it is also possible that the external device 12 generates a machine-readable code (for example HEX code for microprocessors) and stores it.

The stored lists or the stored machine-readable code is transmitted from the external device 12 to the device 10. This is indicated in Figure 1 by the broken double arrow 14. It is furthermore an embodiment that data can also be transmitted from the device 10 to the device 12, for example measured values which have been detected during a dialysis treatment or device-specific data, for example the currently used parameter key list or phase list.

For this purpose, both devices 10 and 12 are equipped with interfaces, of which only the interface 11 for communication with a patient card is shown schematically in FIG. There are many possibilities for data exchange between the devices 10 and 12, of which some are symbolized in FIG. 1 by way of example. The concentric circular sections 15 represent wireless data communication, such as WLAN, mobile radio, Bluetooth, infrared or similar non-wired communication methods. A portable rewritable storage medium 16 is exemplified as a USB stick. Alternatively, Fig. 17 schematically shows an optical storage medium, here as a compact disc, which is writable executed. Other possibilities of data transmission are shown by a network cable 18, which symbolizes wired communication, such as LAN or Internet communication, and by a patient card 19 equipped at least with a readable and writable non-volatile memory (e.g., EEPROM). It is not essential to the invention how the data is exchanged between the devices. It is essential that the devices are set up for this purpose.

The data communication methods, which are symbolized by the symbols 15 to 19 in FIG. 1, allow remote programming of the medical device, which is embodied in FIG. 1 as a device for automatic peritoneal dialysis. Advantageously, the automatic peritoneal dialysis device 11 is at home in the patient. For the programming of the control of the device 11 but a specialist is necessary. If the programming on the device itself, this means that the specialist must go to the patient, or the device itself must be brought to a specialist.

By using external frontends, programming of the controller of the medical device 11 can be done at a remote location. The acquisition of the programming can be done by the use of network communication methods (15, 19 in Figure 1) without the intervention of a person who has to operate the device directly. However, the acquisition of the programming can also be done by the patient 120 himself, by making available the corresponding storage medium (for example 16, 17 and 19) of the interface provided for this purpose (for example 11 in FIG.

The medical device 12 may be configured to automatically recognize that a new parameter key list, a new list of phases, or a machine-readable code is stored on a storage medium currently communicating with one of its interfaces (eg, 11, FIG. 1) , It may request to confirm the acceptance of the new prescription described by the parameter key list, the new phase list, or the machine-readable code, for example, by output on an output device which may be a touch screen with appropriate confirmation key or touch pad. which must be served for confirmation. However, the medical device 12 can also be set up in such a way that it adopts a prescription made known in such a way without any further action.

In any case, care is taken that a prescription can not endanger the patient. For this purpose, various reviews of the prescription can be carried out, for example, it is checked that the temperature of the inflowing dialysate is within a certain range not harmful to the patient. It can also be ensured that a patient is not overcrowded. Overfilled here means that the patient is infused such a large volume of dialysis fluid in a treatment phase, which he can not absorb harmless body.

Such individual patient limit values are known to the medical device, for example by reading the patient card, on which these limit values can be stored. In addition, the machine may have such individual patient limits can be made known in any manner, for example, by authenticating the patient via a fingerprint sensor, an iris scan or entering secret passwords identifying the patient and then loading the patient limits from any held memory, such as an internal memory, or an external accessible through data communication Memory, for example over a network.

It is also conceivable that a software-based simulation of the device is used to evaluate the programming of the medical device. Such a software-based simulation of the medical device simulates the device's behavior one to one. Thus, the behavior of the device can be tested by a new prescription, without the device to be programmed is present. For this purpose, a precise modeling of the medical device to be simulated is necessary.

It is also conceivable that not only the device to be programmed is replaced by a software-based simulation, but also the patient himself. The modeling of a patient is comparatively complex and inaccurate. Nevertheless, with the help of a virtual patient, the impact of a prescription can be at least roughly tested without any danger. This is especially useful when testing new medical devices and conducting medical studies.

FIG. 2 shows by way of example a typical screen content of an external device on which a front end specific to a specific medical device is executed. In detail, FIG. 2 shows a screen display 200 with an open frontend. This front end program offers two text input and output windows 21 and 22. A window 24 (settings) shows information about the medical device to be programmed (in Figure 2 Fresenius Medical Care sleep.safe in the embodiment 1.1), the front end present in this device (in Figure 2, the front end with the frontend identification number 1) and the current Selected external front end (in Figure 2, the front end with the frontend identification number 999):

Through a menu bar 23, various operations such as saving, opening, printing, etc. can be selected by clicking.

At least in window 21, the user may enter a parameter key list corresponding to the prescription. Here the field "#" is used for the line numbering, in the field "Parameter" the corresponding parameter keys with following are used Parameter value entered in brackets and terminated by a semicolon. This notation is only an example, any notation for entering the parameter key and the parameter values is conceivable. The field "comment" is used to enter any comments.

By pressing the arrow 25 shown in FIG. 1, the interpreter subject to the frontend generates a list of phases from the parameter key list and displays this in the window 22. The interpreter takes into account the information in window 24, which the user must enter. Thus, in the example shown in FIG. 2, the internal front-end has a different front-end identification number (ID 1) than the currently used front-end (999). The entries in the window 21 could therefore not be entered into the internal front-end because it has an inadequate set of parameter keys. From the entries in window 21 and the knowledge of the device to be programmed, the interpreter generates a phase list (in window 22), which can take over the device to be programmed without error. Alternatively and not shown in FIG. 1, the interpreter can also generate a machine-readable code (H ex-code) which can be taken over by the programming device without error.

A further embodiment of the invention provides that the frontend program already checks when entering the parameter key list whether the input implements a prescription that would violate safety rules. For example, the front-end program could check whether the volume of fluid flowing into the patient is within predefined limits. Furthermore, it is conceivable that the external front-end program should be made aware of the identity of the patient and / or patient-specific limit values for specific parameter values. The front-end program can then check the entered prescription for compliance with the patient-specific limit values and, if necessary, issue a warning.

FIG. 3 shows a further embodiment of the invention. Here, the prescription is entered by graphic symbols. In this case, the window 31 is subdivided into a selection area 34 and a storage area 35. The selection area shows various symbols 32 which, for example, can be selected with a computer mouse and dragged into the storage area. In the drop-down area, parameter values can be assigned to these symbols, which represent corresponding parameter keys, for example by right-clicking with a computer mouse and then entering a Parameter value via the keyboard. Similar operating concepts are known, for example, from circuit simulation programs. Freely configurable links 33 between the icons determine the order of expiration of the prescription.

The example in FIG. 3 shows the graphical equivalent of the parameter key list displayed in FIG.

The "Solution" symbol is parameterized with the value 13. Since this symbol stands only for the dialysis fluid to be used, there are no connections to the other symbols The symbol "fill vol" has the parameter value 2000000 (μΐ), which corresponds to a filling volume of 2 liters stands. The symbol bearing an hourglass has the value 3600 (s), which means that the dialysis fluid should remain in the patient for 60 minutes and then be removed from it. The symbol "cylces" has the value 2, which stands for a two-time execution.The symbols are connected according to the prescription with arrowed lines.This method of entering a prescription is very comfortable.The user does not need to know any cryptic parameter keys, instead of a parameter key list The process of translating the graphic equivalent into a phase list is analogous to that already explained in the description of figures for Figure 2. It is also an embodiment of the invention that besides the phase list also a parameter key list from the Various other embodiments for the graphic creation of a prescription are conceivable, but FIG. 3 shows only one example of this.

FIG. 4 shows by way of example the course of a PE test on the basis of a diagram 40, which plots the filling volume 41 in the peritoneal space in relation to time. Here, the symbol 42 means the instruction to the patient to sit down, 43 to turn back and forth to distribute the dialysate, and 44 to do some steps. The symbol 45 indicates that a dialysate sample of the dialysate in the peritoneal cavity is to be taken, and the symbol 46 indicates a blood sample to be made.

The course 42 of the filling volume in the peritoneal cavity is typical for a PE test for peritoneal dialysis. The patient is treated with filled peritoneal space at time tO. At time t1, the PE test starts. The increase in fill volume is due to the desired property of glucose-containing dialysate to drain the patient. Consequently, the filling volume in the peritoneal cavity increases with time, if glucose-containing dialysate lingers in it. At the time t 1, the peritoneal cavity is emptied when the patient is seated and a sample of the effluent dialysate taken, which is examined by laboratory technology. This process lasts until time t2, followed by refilling the patient with fresh dialysate (with sampling). Between t3 and t8, the dialysate remains in the patient, interrupted by a sampling at time t6 and the instructions to the patient to take some steps. By dehydrating the patient, the filling volume in the peritoneal cavity increases. At time t8, a new emptying of the peritoneal cavity (in the case of a seated patient) is then carried out with sampling of dialysate and blood. Finally, the patient is supplied with fresh dialysate from which a new sample is taken.

The analysis of the dialysate and blood samples in conjunction with the typical course of the PE test, as shown in the diagram 40, makes it possible to determine the filter function of the peritoneum or the residual kidney function of the patient and thus indications of the optimal dialysis prescription for a to gain concrete patients.

Two aspects of the present invention are reflected in the diagram 40. The determination of the phases of the PE test, ie how much dialysate is to be introduced into or pumped out of the peritoneal cavity, the sampling of blood and dialysate, and the instructions to the patient with the entire time sequence of these phases, can in the frontend by a simple parameter key parameter value pair, for example, "pet_short (event_name)" into a corresponding phase list, because this procedure is standardized for a short and long PE test.Furthermore, the parameter value "event_name" allows for a message phase as above already described, the involvement of the patient by instructions directed to him, which can be issued.

In addition, further information about the patient or about the treatment of the respective patient can thereby be obtained that in the manner already described, feedback of the patient of all types (for example text input, or sound and / or image recordings) can be entered during the news phase and these can be input to the respective patient can be stored assigned.

The present invention makes the preparation, control and programming of medical treatment devices comfortable and flexible. In addition, the invention allows the testing and simulation of medical treatment without compromising a patient.

Claims

claims

1. Method for preparing medical treatment devices

characterized by the method steps:

Selecting a Front End from a Variety of Held Front Ends,

Entering a prescription in the selected frontend,

Creating a phase list from the entered prescription that can be read by the medical treatment device and which programs the course of a treatment.

2. The method of claim 1, wherein the plurality of front ends differ in at least one of a plurality of features, the features being the type of medical treatment device, the purpose of the treatment, the location of the treatment, and / or the user of the front end may include.

3. The method according to claim 1 or 2, characterized in that the phase list is transmitted to the treatment device.

4. The method according to any one of the preceding claims, characterized in that the phase list comprises a message phase.

5. The method according to claim 4, characterized in that in the news phase information on the medical treatment device off and are entered.

6. Method according to claim 5, characterized in that the information is text, acoustic or visual information.

7. The method according to any one of the preceding claims, characterized in that the sequence of treatment includes the preparation of a medical report.

8. The method according to any one of the preceding claims, characterized in that the input of a prescription in the selected front end is done by selecting graphical symbols.

9. Method according to one of the preceding claims, characterized in that parameter keys and parameter values can be input in the front end, wherein the parameter values can comprise at least one of the variables time, volume, concentration, active ingredient, temperature, conductivity, pressure, flow rate or text.

10. The method according to claim 9, characterized in that a parameter key describes a standardized medical test.

11. The method according to claim 10, characterized in that the standardized medical test is a PE test.

12. The method according to any one of the preceding claims, characterized in that the front-end checks whether the entered prescription would endanger the health of a patient.

13. The method according to any one of the preceding claims, characterized in that the front end is adapted to simulate the treatment described by the prescription.

14. The method according to any one of the preceding claims, characterized in that the medical treatment device is a blood treatment device.

15. The method according to claim 14, characterized in that the blood treatment device is a device for automatic peritoneal dialysis.

16. A device for controlling medical treatment devices, comprising a microprocessor unit, an input device, an interface for data communication with external storage media or medical Processing devices, wherein microprocessor unit, input device and interface are connected to one another by data technology,

characterized in that the microprocessor unit for performing a

Method is programmed with the following method steps:

Selecting with the help of the input device one for the treatment and the

Treatment device specific front ends from a variety of reproached

frontends

Input or selection of a prescription in the selected front-end with the aid of the input device,

Creating a phase list from the entered prescription that can be read by the medical treatment device and that programs the course of a treatment.

System comprising a medical treatment device and a device for controlling the medical treatment device, the device for controlling the medical treatment device comprising a microprocessor unit, an input device, an interface for data communication with external storage media or medical treatment devices, wherein the microprocessor unit, input device and interface are connected to one another by data technology .

characterized in that the microprocessor unit for performing a

Method is programmed with the following method steps:

Selecting with the help of the input device one for the treatment and the

Treatment device specific front ends from a variety of reproached

frontends

Input or selection of a prescription in the selected front-end, with the aid of the input device,

18. Device according to one of claims 16 or 17, characterized in that the medical treatment device is a blood treatment device.

19. The device according to claim 18, characterized in that the blood treatment device is a device for automatic peritoneal dialysis.

A computer program product comprising a storage medium and a computer program stored on the storage medium for carrying out the method of any of claims 1-15 when the computer product is operated on a microprocessor.