WO2004056263A1

WO2004056263A1 - System and method for wirelessly transmitting signals between medical devices

Info

Publication number: WO2004056263A1
Application number: PCT/DE2003/002811
Authority: WO
Inventors: Torsten Gruchmann; Uvo HÖLSCHER; Jürgen Mehring; Knud Simon
Original assignee: Siemens Aktiengesellschaft
Priority date: 2002-12-19
Filing date: 2003-08-20
Publication date: 2004-07-08
Also published as: AU2003260273A1; DE10260068A1

Abstract

The invention relates to a system (1) and to a method for wirelessly transmitting signals between medical devices (3, 3'), except for controlling devices. Said system comprises a measuring sensor (7, 7'), which has a transmitter (5) and which serves to record medical measured quantities, and comprises a receiver (9, 9'), which receives the wirelessly transmitted signals of the measuring sensor (7, 7') and, for its part, interacts with the medical device (3, 3') as to conduct signal transmission. According to the invention, the measuring sensor (7, 7') comprises two components of which a first sensory component (11) has at least one sensing element (13), e.g. a temperature sensor or an EKG electrode, and a second electronic component (15) contains the transmitter (5) for transmitting the recorded signals. The sensory component (11) comprises an electrical, mechanical or another type connection to the electronic component. The system (1) can comprise more than one measuring sensor (7, 7') to each of which a respective receiving module (25, 25') located in a receiver (9, 9') can be assigned. According to the inventive method, the ready-to-receive state of the receiver (9, 9') for signals of the transmitter (5) is established by announcing the transmitter (5) to the receiver (9, 9') which involves the transmission of an identification code by the transmitter (5).

Description

description

Arrangement and method for the wireless transmission of signals between medical devices

The invention relates to an arrangement for the wireless transmission of signals between medical devices, with the exception of actuating devices, with a transducer for medical quantities having a transmitter and with a receiver which receives the wirelessly transmitted signals of the transducer and in turn interacts with the medical device to transmit signals.

The invention also relates to a method for transmitting signals from a medical measurement sensor to a medical device, with the exception of control devices, the signals being transmitted wirelessly between a transmitter assigned to the measurement sensor and a receiver assigned to the device.

The invention has for its object to enable the use of wireless transducers in hospitals, even if several wireless transducers are operated at the same time and special requirements are placed on hygiene and mobility.

This object is achieved by arrangements and by a method with the features of the independent claims.

Advantageous refinements of the invention result from the dependent patent claims.

A basic idea of the invention consists in specifying an arrangement for the wireless transmission of electronic signals to a medical device, with the exception of an actuating device, with a measurement transducer for medical measured variables and a wireless transmitter a receiver that receives wirelessly transmitted signals from the sensor and in turn interacts with the medical device to transmit signals. According to the invention, the sensor has a first and a second component. The first component is referred to as a sensory component and has at least one measuring sensor. The second component is referred to as an electronic component and has a transmitter for wireless transmission of electronic signals. The sensory component can be connected electrically or mechanically to the electronic component.

A further basic idea of the invention consists in specifying such an arrangement, wherein at least two measurement sensors, which transmit wireless signals, and a receiver for the signals from at least two measurement sensors are provided. A medical device is assigned to each transducer, to which the measurement signals are fed. The receiver has a receiving module for each of the measuring sensors assigned to it, which only processes the signals of the measuring sensor assigned to this module that are provided with an individual identifier. The wireless signals are converted in the reception module into a format which can be processed by the medical device in question.

Another basic idea of the invention consists in specifying a method for transmitting signals from a medical measurement sensor to a medical device, with the exception of control devices, the signals being transmitted wirelessly between a transmitter assigned to the measurement sensor and a receiver assigned to the device. The receiver is ready to receive signals from the transmitter by registering the transmitter with the receiver, the receiver only converting the signals of the transmitter into measurement signals which are supplied to the medical device when the receiver is ready to receive. Along with An identification code from the transmitter is transmitted to the measurement signals, the identification code individually identifying the transmitter.

In other words, the invention proposes a modular transmission system:

Due to the separation into a sensory and an electronic component, the sensors allow simple, inexpensive and quick replacement of only one of the components, be it the mechanical loads that are more exposed or the more sensitive electronics. A sensory component is provided which has, for example, one or more measuring sensors. These sensors convert a physical variable, such as temperature, pressure, or the like, into an electrical signal, which is processed by the electronic component and sent to the receiver (the master system). The signal can be processed and displayed on the connected medical device in such a way that e.g. the ECG signal, EEG signal, oxygen saturation, etc. is visible.

In addition, the number of cable connections required at the system's locations, such as in the operating room, on the intensive care units and peripheral stations, is reduced. A reduction in the existing cable connections enables a clearer installation and increases operational safety

- there are no disruptive cables in the patient's environment that restrict the freedom of movement of the nursing staff or the patient himself

- Device errors caused by cable breaks can be prevented - A patient risk due to unintentional disconnection of the transducer from the medical device, e.g. B. is avoided in a rearrangement of the patient.

The separation of the transducer into two components also enables optimal cleaning, as each of the two components can be cleaned in a form that is optimized for them.

The cleaning can preferably be supported by a cleaning-friendly surface design:

- So a surface coating with a cleaning-friendly surface structure such. B. a dirt-repellent micro-roughness can be provided,

and / or a surface coating can be provided which contains antibacterial or dirt-repellent components,

- Or the housing material itself can have the aforementioned components and / or the aforementioned surface structure.

In one advantageous embodiment, the two components can be connected to one another in such a way that a first component is designed similar to a housing. The second component is then designed in such a way that it is pushed, inserted or inserted into the first component, which is designed like a housing.

As a second essential component of this system comprising several modules, a receiver is provided which receives the wirelessly transmitted measurement signals of the transmitter, that is to say of the measurement sensor, and which in turn feeds the measurement signals to the medical device. This receiver can also advantageously be of modular design, for. B. be provided with plug-in cards or similar interchangeable modules, so that each transmitter can be assigned its own receiving module, with the signal line to the medical device then taking place from each receiving module. Here, a “receiving module” either designates a circuit with its own receiving function, or — advantageously — when using a single receiver, only one type of adapter, which has the interface to the respective medical device, and which may have an adapter or conversion circuit can, which prepares the received signals in a format suitable for the respective medical device.

In particular, it can be provided that the receiving module is assigned to a specific medical device and converts the wirelessly received measurement signals into measurement signals that can be processed directly by the medical device. Depending on the medical devices available in a specific room, the receiver is therefore equipped with the appropriate receiving modules, with each receiving module transmitting a signal to the respectively assigned medical device.

It can also be provided that a receiving module is connected to a further data network, via which it can forward the received data. After the wireless transmission of signals from a transducer, the transmitted data can thus be distributed further via the connected data network and, for example, collected and archived at a central point.

The two-component design of the transducer enables the use of a mass-produced and accordingly inexpensive, standardized electronic

Component that can be configured identically for different sensory components. In this case, the sensory components have advantageous identifiers, either mechanically in the form of projections and / or recesses, or electronically in the form of built-in chips, such as transponders, or by

Coils, magnets or similar built-in elements in the sensory component, which are recognized by corresponding sensors of the electronic component, so that the type of the sensor can be recognized by the electronic component. A distinction is made between the types in the sense of the present proposal as to whether the sensory component is, for example, a temperature sensor or one or more EKG electrodes, with different types differing in the type and, if appropriate, number of individual sensors.

The electronic component can preferably have an individual identifier, not just manufacturer or type-related. When the signal is transmitted from the measurement sensor to the receiver, an identification code of the electronic component can be transmitted in addition to the actual transmission of the measurement signal, so that the receiver can clearly determine from which transmitter the signal is transmitted.

Preferably, the transmitter is first “registered” with the receiver by transmitting its identification code, so that when the signal is transmitted later, it is ensured that only the specific receiving module to which this transmitter is registered evaluates the signals transmitted by this transmitter and processes them further to form measurement signals. which are forwarded to a medical device. This "registration" can be done, for example, by contacting the transmitter and receiver, for. B. between the aforementioned electronic component of the transducer and the aforementioned receiving module within the receiver. With this registration too, the separation of the measured value transducer in the two components may be advantageous for handling reasons, namely when only the electronic component has to be handled for this application.

Registration can also be done without contact, e.g. B. by means of a transponder present in the electronic component. The receiver is designed as a transmitter that can not only receive signals but also send signals. As a transmitter, the transponder is able to receive the signals sent by the receiver and to send the coding of the electronic component stored in its microchip to the receiver.

In addition to the registration method described, which is implemented in a contactless manner by means of optical or inductive transmission, a registration can also be implemented via an HF radio link. For this purpose, the transmitter and receiver are placed in an HF-shielded area, so that registration via the radio link is possible without the risk of interference from outside.

The assignment of the suitable receiving module, which is connected to the desired medical device, can be done by an optical - e.g. color coding are supported, in that the mutually assigned receiver modules and sensor components of the transducer are coded in the same color, with a separate optical code for each type of medical device - e.g. B. a separate color - is provided.

Alternatively, the registration of the measurement sensor at the receiver and the assignment of the measurement sensor to the correct medical device can be provided with the following steps:

- The electronic component of the sensor is first inserted into or connected to the sensor component of the sensor, so that on the basis of the aforementioned coding, the electronic component registers the type of sensor component it interacts with, that is, the type of sensor.

In addition to its own individual identifier for each copy, which identifies the electronic component, the electronic component can therefore also send out a type identifier which designates the type of the sensory component.

- It can be provided at the receiver that it only converts and processes signals which contain the correct type identifier for this receiver. This ensures that when several wireless transducers are operated at the same time, the individual receivers or the individual receiving modules within a receiver only ever evaluate the signals that are specifically sent by those transducers that are assigned to the medical device to which the receiver is connected is.

If only different types of transducers are operated in the vicinity of the receiver and it is therefore impossible that transmission signals of a second copy, but of the same type of transducer, can be sent to the receiver, the type identifier is sufficient to distinguish the individual transducers from one another can. However, if several copies of the same type are operated in the same environment of the receiver, ie their transmission signals overlap and can be received by the same receiver, e.g. B. in two adjacent operating rooms, an individual identifier of each individual transducer can be achieved in that an individual identifier of each electronic component is transmitted to the receiver. The electronic components can advantageously contain exchangeable energy stores, so that the energy stores can be exchanged or charged at a central charging point and the electronic components can then each be equipped with a "fresh" energy store of optimal capacity.

The energy store can advantageously also be replaced by an electromechanical converter which converts the movement energy of a measurement sensor attached to the patient into electrical energy and thus supplies the measurement sensor with energy.

The sensory component can advantageously have smooth surfaces, so that it is particularly easy to clean and has no collection points for germ nests. Even the electronic component, which due to its sensitive components may not be exposed to the temperature and humidity conditions of a hospital-typical rinsing device, can advantageously be smooth on its surface, so that it can be cleaned as well as possible by wiping it. In particular, it can be protected by - e.g. concealed - installation position only a lower risk of contamination z. B. exposed to blood splashes as the sensory component.

It can advantageously be provided that it can be determined by means of position sensors whether the sensor is in its operating position, for example on the patient's body or the like. These sensors can be designed as a mechanical button or can also determine the correct distance or contact or the correct position without contact. Together with a suitable circuit, the sensors enable no measurement signals to be transmitted to the assigned medical device if the sensors register missing contact or an incorrect operating position. This makes it possible to implement the measurement sensor during operation, for example during an operation, with incorrect measurement values being suppressed. It can be provided that, if the operating position is incorrect, the measuring sensor does not send any measuring signals to the receiver. Alternatively, it can be provided that such a registration of the sensor signals takes place at the receiver, and if the measuring transducer is in the wrong operating position, the further processing of the measurement signals arriving from the transmitter in the receiver is interrupted or the transmission of measurement signals to the medical device is prevented.

Regardless of the modular design of the measurement transducer, which enables series production of electronic components, the method can be used to register the transmitter, that is to say the measurement transducer, with the receiver and only then, by this registration, to make the receiver ready to receive the signals of the measurement transducer in question. The registration means that the receiver only evaluates and implements the signals of those sensors that have been registered with him.

With different types of transducers, it may therefore be sufficient that the type of transducer is coded as an identifier and transmitted along with the measurement signals, since in this case only one copy of each type of transducer is available even if several transducers are used at the same time - Different types of sensors are clearly individualized.

If, however, several measurement sensors of the same type are operated adjacent to one another so that their signals may overlap, the erroneous evaluation of the signals by a receiver that is not intended for the measurement sensor concerned can be avoided that each individual transmitter contains an individual identifier, irrespective of or possibly supplementary to an identifier which identifies the type of the measuring sensor.

When using the aforementioned position sensors, it can be provided that the transmitter is deregistered from the receiver as long as no correct operating position of the measurement sensor is determined. In order to avoid logging in again, which may be cumbersome, provision can be made for the readiness for reception to be restored automatically, provided the correct operating position is restored within a predetermined period of time, for example within one or two minutes. In practice, this time is sufficient to move the transducer from one place to another, for example, only briefly.

Furthermore, the readiness to receive can be switched off automatically when the sensor becomes inoperative, e.g. B. by failure of the energy store or when a two-component sensor is disconnected, that is, when the electronic component is separated from the sensory component. After the end of an operation, if the transducers are removed from the operating room to charge the energy storage device and for cleaning, it is therefore not necessary to log out the transmitter from the receiver, but when the transducer is opened or the energy storage device is removed, this logout takes place automatically.

The deregistration can take place, for example, in that the electronic component no longer receives a signal about the type of the sensory component when it is separated from the sensory component, so that this type identifier is missing. The absence of this type code alone can be used, for example, to send the electronic component an unsubscribe signal to the receiver. Alternatively, it can be provided that the electronic component transmits presence signals to the receiver at regular intervals or at least within predetermined time intervals. If these presence signals fail to appear, the transmitter concerned is automatically logged off from the receiver. The presence signals are absent, for example, when the transmitter is so far away from the receiver that the transmission power is no longer sufficient to reach the receiver. The presence signals remain off when the energy store is removed from the electronic component. In the case of presence signals of this type, it can furthermore be provided that these contain the individual identifier of the transmitter and, for example, also the type identifier of the measurement sensor. If the electronic component is separated from the sensory component and the type identifier is accordingly missing, this automatically means that there is no longer a complete presence signal, so that the transmitter can be automatically logged off from the receiver.

When using several measurement sensors, for example within an operating room, intensive care room, a peripheral ward or a hospital room, a single central receiver can preferably be provided, which can be equipped in a modular manner with individual receiving modules in the manner described above. These receiving modules are each adapted to a specific medical device and convert the wirelessly transmitted measurement signals, as they arrive from the sensor to the receiver, into a signal format or data format that can be processed by the medical device, whereby preferably a wired signal transmission between the receiver and the medical device can be provided.

The creation of a central receiver enables it to be arranged in an optimal reception position within a room. In contrast, would separate recipients in the medical devices themselves are arranged, depending on the arrangement of the medical devices in the room or depending on the arrangement of additional, sometimes also movable elements, shadowing may occur, so that secure wireless signal transmission would not be guaranteed. The receiver provided according to the proposal, on the other hand, can be placed at an optimal location, in which case the individual receiving modules then enable secure, for example wired, data transmission of the measurement signals to the medical device.

Advantageously, both the transmitter in the transducer and the receiver can work bidirectionally, that is to say each send and receive, and can therefore be designed as a transmitter. It is thus possible to use a single receiver which successively sends a request signal specific to the respective measurement sensor to the measurement sensor. In response to this request signal, the "requested" transducer either only transmits a signal when there has been a change in state, eg. B. when a new measurement signal is present or the energy store has reached a critical charge limit, or the "requested" sensor transmits all information about its current state.

Provision can advantageously be made to use a central receiver (the "master system") for a plurality of transducers, EKG or EEG signals being mentioned purely by way of example. The master system feeds the signals received by the individual sensors to the associated medical devices. According to claim 10, this represents a second approach of the present proposal to create a modular system which is particularly suitable for operation in a hospital due to the large number of measuring sensors available there in a small space, since these measuring sensors can be operated wirelessly according to the proposal and thus both tangling and trip hazards can be avoided which as well as secure signal transmission is guaranteed.

In addition, provision can be made to distribute a signal generated by a measurement sensor over several or all connected medical devices.

Alternatively, a sensor can also be registered with several receivers, which in turn exchange the received measurement signals with each other. An example of this would be the monitoring of patients who are mobile in the hospital.

The concept also provides that a sensor that has been moved from its operating position is blocked.

If the sensor remains in this position for a defined period of time, it is logged off from the master system in order to avoid that the sensor can be removed from the work area and put back into operation at another location. This could cause erroneous readings and misdiagnosis.

In order to detect the spatial change in the sensor, additional receivers can be installed that measure the reception field strength of the sensor and pass this on to the master system. The location of the sensor within the receiving cell can thus be monitored. If the field strength at one of the additional receivers exceeds a certain value (possibly in relation to the field strength measured on the master system), this can be interpreted as an impermissibly large movement of the sensor and lead to the sensor being logged off.

The location of the transducer can not only be used to detect the unauthorized removal of the transducer from the reception area of the receiver, but also to provide information about the location of the wearer. to make the sensor. The data obtained in this way, information on the location of the wearer, can also be used to determine internal process parameters, such as movement distances, length of stay and location, and for the allocation of costs, thus enabling or facilitating the billing of services.

In terms of operational security, a data memory can be provided for logging all the data and operating states transmitted.

Such a data memory can be provided in the sensor. As a result, the measurement data can be recorded when staying outside the reception area and automatically transferred from the data memory to the associated medical device when the user enters the reception area again. E.g. leaves If a patient with a sensor records the reception area, the measurement data can still be recorded without gaps. As a result, the area of action and thus the quality of life of the patient can be significantly increased.

In addition to the measurement data, information on the person of the patient and also, for example, on the course of the disease or on existing diagnoses, applied or planned therapy methods can also be stored in the data memory. As a result, the formal and logistical effort, for example in the case of a patient transport or a transfer, is considerably reduced.

The measurement data obtained can be transmitted in blocks. The distances between the blocks can be controlled via conditions which are derived from characteristics of the measurement data (for example the variability of the signals, extracted data according to the patient's condition etc.) or other functions or from conditions which are determined by the reception module or the medical device. In order to save energy and transmission capacity, the measurement data obtained can be collected over a certain period of time and transmitted periodically bundled. Block-by-block transmission can also be used if the sensor is in the reception area of the receiver.

The sensor can be equipped with a display that e.g. provides the patient with information about the remaining capacity of the data storage device.

In addition, it can be provided that data are also transmitted from the receiving modules to the transmitting modules. The data can be displayed to the patient optically or acoustically by the transmitter modules, e.g. to inform him of an upcoming event or to ask him to take action. This can e.g. a patient call system can be implemented, the use of which allows a patient to move freely within the reception areas and yet be informed at any time of, for example, upcoming examinations or therapies and be called back to his ward. Or z. B. Status information exchanged or the. repeated transmission of disturbed data records can be requested.

Further information on the status of the sensor, e.g. the registration status (e.g. transmitter not installed / not correctly connected to the sensory part) or the battery charge and the remaining operating time can be transferred from the sensor to the master system and visualized or forwarded there.

Transmitter modules (the electronic part of the sensor) become inactive as soon as they are removed from the sensor. In order to be able to locate them even in this state, a command can be provided that is sent by the master system and that sends an optical or acoustic signal. Sensor activated in the transmitter module. On the other hand, it is also possible to centrally track and monitor all charge statuses and to remember the charge.

It is also conceivable to visualize the above-mentioned and additional information transmitted by the receiver (master system) on the receiver (e.g. by means of a display built into the measurement sensor) or to signal it acoustically.

It is possible to process and evaluate the measurement data obtained directly in the sensor. The information obtained and instructions or recommendations derived from it can e.g. be displayed to the patient. The patient can e.g. be asked to take a specific action or to see a doctor.

In order to keep the costs of the master system low or to fully integrate the master system into a medical device, in addition to the measured values, all relevant operating data (as raw values or in already prepared ones) can also be used

Form) to the connected medical device and processed or visualized there.

In order to avoid reception interference due to unfavorable spatial conditions (e.g. shadowing) or to increase the range of the transmitter, relay stations can be provided that receive the transmitted information and forward it to the master system. As a result, the transmission path between the measuring sensor and the receiver can be enlarged.

In order to be able to analyze and rectify the course of an operation or, for example, malfunctions, a monitor can be installed in the master, which logs all transmitted measurement data and operating states and makes the recorded data available to the user or service personnel later when required. A preferred embodiment of the invention is in the

Figure 1 arrangement for wireless transmission of electronic signals

described. The arrangement 1 comprises a measuring sensor 7 for medical measurements, as well as a further, not shown in detail transducer 7 ^Λ. The measured value transducer 7 is used to measure medical quantities that are to be sent wirelessly to a medical device 3, 3.

It has a transmitter 5 for the wireless transmission of electronic signals to a receiver 9 or a further receiver 9 ^λ . The transmitter 5 is part of one of two components of the sensor, namely its electronic component 15.

The electronic component 15 also has an energy store 17 which supplies the transducer 7 with the electrical energy required for operation. In addition, a reader 19 is integrated, by means of which a connected sensor component 11 can be identified.

The sensory component 11 is detachably connected to the electronic component 15. The components thus represent two modules of the measurement sensor 7. It has a microchip 21, which enables electronic identification by means of the reading device 19 that the microchip 21 can read out for this purpose.

Furthermore, the sensory component 11 has a measuring sensor 13, by means of which it measures medical measured variables. The correct placement of the sensor 13 in the operating position can be monitored by means of the position sensor 23. The electronic signals of the transducer 7 are transmitted wirelessly by the transmitter 5, the transmission path having relay stations 27 which amplify the signals and thus enable reliable transmission even at greater distances. The wireless transmission path is shown symbolically in the figure by jagged arrows.

The signals are transmitted to a receiver 9, which has reception modules 25, 25 ^Λ for receiving the signals. Another receiver 9 ^Λ is not shown in detail.

From the receiver 9, 9 ^Λ the wirelessly received signals a medical device 3, 3 ^λ are supplied. A receiver 9, 9 can be assigned one or more medical devices 3, 3 ^λ to which the data can be sent.

Claims

claims

1. Arrangement (1) for the wireless transmission of electronic signals to a medical device (3), except for an actuating device, with a wireless transmitter (5) having a transducer (7) for medical parameters and with a receiver (9) Receives wirelessly transmitted signals of the measuring sensor (7) and in turn interacts with the medical device (3) to transmit signals, characterized in that the measuring sensor (7) has a first and a second component, the first component being referred to as a sensor component (11) and Has at least one sensor (13), the second component being designated as electronic component (15) and comprising the transmitter (5) for wireless transmission of electronic signals, and wherein the sensor component (11) with the electronic component (15 ) is electrically or mechanically connectable.

2. Arrangement (1) according to claim 1, d a d u r c h g e k e n n z e i c h n e t, that the connection between the components is made detachable.

3. Arrangement (1) according to claim 1 or 2, d a d u r c h g e k e n n z e i c h n e t, that one of the components has an energy store (17).

4. Arrangement (1) according to one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t, that one of the components is designed like a housing.

5. Arrangement (1) according to one of the preceding claims, characterized in that one of the components has a smooth outer surface which enables wiping cleaning.

6. Arrangement (1) according to one of the preceding claims, g e k e n n z e i c h n e t d u r c h a coding provided on the sensory component and by a scanning device provided on the electronic component for reading out this coding, the coding identifying the sensory component.

7. Arrangement (1) according to claim 6, d a d u r c h g e k e n e z e i c h n e t, that the coding is mechanically formed by an arrangement and / or configuration of projections and / or recesses.

8. Arrangement (1) according to claim 6, characterized in that the coding is present electronically in a microchip (21) or is generated by a microchip (21), and that the microchip (21) has a transmitter which is read by a reader (19th ) can be read out in the electronic component (15).

9. Arrangement (1) according to one of the preceding claims, characterized by a position sensor (23) for determining an operating position of the sensor or the measurement sensor, and by a circuit which, depending on a determination of an operating position, the transmission of signals to the medical device (3) unlocked.

10. Arrangement (1) for the wireless transmission of electronic signals to a medical device (3), with the exception of an actuating device, with a transducer (7) for medical and wireless transmitters (5). see measured variables and with a receiver (9) which receives wirelessly transmitted signals from the measuring sensor (7) and in turn interacts with the medical device (3) in a signal-transmitting manner, characterized by at least two measuring sensors (7, 7) which transmit wireless signals, each measuring sensor (7, 7 ^Λ ) a medical device (3, 3 ^λ ) can be assigned, to which the measurement signals can be fed, and the signals can be provided with an individual electronic identifier by each measurement sensor (7, 7), and with a receiver (9) for receiving signals from the at least two measuring sensors (7, 7 ^Λ), wherein the receiver (9) for each of the allocable him transducer a receiving module (25, 25) which exclusively the individual with the identification of processed signals associated with the receiver module (25, 25) associated with the sensor (7, 7 ^λ ), the signals being transmitted by the receiver module (25, 2 5 ^Λ ) can be converted into a format which can be processed by the medical device (3, 3) in question.

11. The arrangement (1) (1) according to claim 10, characterized in that a measuring sensor (7, 7 ^λ ) can be assigned to several medical devices (3, 3) and that the receiver (9) can supply the measuring signals to them.

12. The arrangement (1) according to claim 10, characterized in that a transducer (7, 7 ^λ ) several receivers (9, 9) can be assigned, and that the measurement signals can be fed through this to the assigned medical devices (3, 3).

13. Arrangement (1) according to claim 10, characterized in that a medical device (3, 3) has a plurality of transducers (7, 7 ^Λ ) can be assigned, and that a receiver (9) can transmit their measurement signals to this medical device (3, 3).

14. Arrangement (1) according to one of the preceding claims, characterized in that at least one further receiver (9 ^Λ ) is provided outside the immediate working environment of the transmitter (5).

15. The arrangement (1) according to claim 14, characterized in that the further receiver (9 ^λ ) is designed such that it can transmit the reception field strength of the signals from the transmitter (5) to the first receiver (9).

16. The arrangement (1) according to claim 15, characterized in that the first receiver (9) interrupts the supply of measurement signals to the medical device (3, 3) when the reception field strength of the signals from the transmitter (5) at the further receiver (9 ^Λ ) deviates from the reception field strength at the first receiver (9) by a fixed amount.

17. Arrangement (1) according to one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t that both a transmitter (5) and a receiver (9) can both receive and send signals.

18. The arrangement (1) as claimed in claim 17, which means that a receiver (9) can send status information about the reception quality and / or the registration status to a transmitter (5).

19. Arrangement (1) according to one of claims 17 or 18, g e k e n n z e i c h n e t d u r c h an activation circuit such that a receiver in a sleep

Mode can be and that the sleep mode of the receiver can be ended by a transmitter and optical and / or acoustic signal devices of the receiver can be activated.

20. The arrangement (1) according to any one of the preceding claims, characterized in that a transmitter (5) has a monitoring circuit for monitoring measurement signals and / or a voltage supply and / or a registration state of the transmitter (5), and that as a function of the monitoring circuit by monitoring these parameters, optical or acoustic signal devices of the measuring sensor (7, 7) can be activated.

21. The arrangement (1) according to one of the preceding claims, characterized in that information about the state of charge of its energy store (17) and / or about its power consumption can be sent to a receiver (9, 9) by a measurement sensor (7, 7 ^Λ ), and that this information can be processed further by the receiver (9, 9 ^Λ ) and / or can be supplied to an assigned medical device (3, 3 ^λ ), and that optical and / or acoustic signal devices can be activated as a function of this information.

22. Arrangement (1) according to one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t, that one or both components (11, 15) has a waterproof outer surface ensuring the immersion or splash water resistance of the respective component.

23. Arrangement (1) according to one of the preceding claims, characterized in that relay stations (27) are provided, by means of which signals transmitted between a transducer (7, 7) and a receiver (9, 9) can be amplified.

24. The arrangement (1) according to one of the preceding claims, that a data storage device is provided for logging all transmitted data and operating states.

25. Arrangement (1) according to one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t that at least the sensory component (11) can be cleaned in a medical rinsing or sterilization device.

26. Arrangement (1) according to one of the preceding claims, characterized in that a data memory is provided in a measurement sensor (7, 7), by means of which the measurement data can be recorded when leaving a reception area and automatically sent to a receiver (9, 9) are broadcast.

27. The arrangement (1) according to claim 26, characterized in that the sensor (7, 7 ^λ ) has a display which optically and / or acoustically displays information as a function of the remaining capacity of the data memory.

28. Arrangement (1) according to one of claims 26 or 27, d a d u r c h g e k e n n z e i c h n e t, that information about the person of the patient can also be recorded in the data memory.

29. Arrangement (1) according to any one of the preceding claims, characterized in that a transducer (7, 7 ^λ ) has movement and / or other sensors, and that data transmission is permitted or prevented as a function of an output signal from these sensors.

30. Arrangement (1) according to one of claims 14 or 15, characterized in that by the arrangement (1) depending on the reception field strength of the signals of a transmitter (5) at the further receiver (9) a location of the transducer (7 , 7 ^Λ ) can be determined.

31. Arrangement (1) according to claim 30, characterized in that the location (1) of the transducer (7, l ^λ ) can be transmitted to an evaluation unit and there for the determination of process parameters and / or for the allocation of costs and / or the arrangement (1). or can be further processed to support billing.

32. Arrangement (1) according to one of the preceding claims, characterized in that from a receiver (9, 9 ^Λ ) data to a transducer

(7, 7 '*) can be transmitted, and that the data can be displayed to the patient by the sensor (7, 7 ^, ) visually or acoustically.

33. Arrangement (1) according to one of claims 1 or 2, g e k e n n z e i c h n e t d u r c h a device for displaying information such as diagnoses or medical recommendations or instructions that come from the evaluation of the measurement data.

34. Arrangement (1) according to one of claims 1 or 2, characterized in that the sensor (7, 7) has an electromechanical converter that converts kinetic energy into electrical energy, and that the energy supply of the sensor (7, 7 ^Λ ) by Converter takes place.

35. Arrangement (1) according to any one of the preceding claims, characterized in that a receiver (9, 9 ^λ ) is connected to a further data network via which it can forward received data.

36. Arrangement (1) according to one of the preceding claims, d a d u r c h g e k e n n z e i c h n e t, d a s s

Signals are transmitted block by block, the distances between the blocks being controlled as a function of conditions which are derived from characteristics of the measurement data and / or other functions or from conditions which are determined by the receiving module (25, 25 ^Λ ) or the medical device ( 3, 3) can be specified.

37. Method for transmitting electronic signals from a measurement sensor (7, 7 ^Λ ) to a medical device (3, 3), with the exception of control devices, the signals being wireless between a transmitter (5) assigned to the measurement sensor (7, 7) and a transmitter the receiver (9, 9) assigned to the device (3, 3) are transmitted, characterized in that the receiver (9, 9) is ready to receive signals from the transmitter (5) by the transmitter (5) at the receiver (9, 9 ^Λ ) is registered, the receiver (9, 9 ^λ ) converting the signals of the transmitter (5) into measurement signals, which are supplied to the medical device (3, 3), only when the device is ready to receive, and that together with the

An identification code is transmitted from the transmitter (5) to measurement signals, the identification code individually identifying the transmitter (5).

38. The method according to claim 37, wherein the logging takes place without contact.

39. The method according to any one of claims 37 or 38, characterized in that the identification code of a transmitter (5) is simultaneously valid for different receivers (9, 9 ^Λ ).

40. The method according to any one of claims 37 to 39, characterized in that the transmitter (5) is logged off at the receiver (9, 9 ^λ ) when it is removed from a predetermined, sensor-monitored position, the readiness of reception of the receiver ( 9, 9 ^Λ ) 'is ended.

41. The method as claimed in claim 40, which means that readiness for reception is automatically restored when the transmitter (5) returns to the predetermined sensor-monitored position.

42. The method according to any one of claims 37 to 41, characterized in that the transmitter (5) at the receiver (9, 9 ^Λ ) is logged off when a unit of the transmitter (5) consisting of two components (11, 15) into individual components is separated, the readiness for reception of the receiver (9, 9) being terminated by the deregistration.

43. The method according to any one of claims 41 or 42, characterized in that a new readiness to receive can only be automatically restored within a predetermined period of time and that after this period of time a new production of the readiness to receive by re-registering the transmitter (5) with the receiver (9, 9 ) is required.

44. The method according to any one of claims 37 to 43, characterized in that the transmitter (5) transmits presence signals within predetermined time intervals, and that if the presence signal is absent, the transmitter (5) is automatically logged off at the receiver (9, 9 ^λ ).

45. The method according to claim 37, characterized in that the transmitter (5) and receiver (9, 9 ^Λ ) are introduced into an HF-shielded area, which enables registration via an HF radio link without the risk of interference from outside.