WO2004056263A1 - Dispositif et procede de transmission sans fil de signaux entre des appareils medicaux - Google Patents

Dispositif et procede de transmission sans fil de signaux entre des appareils medicaux Download PDF

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Publication number
WO2004056263A1
WO2004056263A1 PCT/DE2003/002811 DE0302811W WO2004056263A1 WO 2004056263 A1 WO2004056263 A1 WO 2004056263A1 DE 0302811 W DE0302811 W DE 0302811W WO 2004056263 A1 WO2004056263 A1 WO 2004056263A1
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WO
WIPO (PCT)
Prior art keywords
receiver
arrangement
signals
transmitter
sensor
Prior art date
Application number
PCT/DE2003/002811
Other languages
German (de)
English (en)
Inventor
Torsten Gruchmann
Uvo HÖLSCHER
Jürgen Mehring
Knud Simon
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to AU2003260273A priority Critical patent/AU2003260273A1/en
Publication of WO2004056263A1 publication Critical patent/WO2004056263A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network

Definitions

  • 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.
  • 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.
  • 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.
  • An identification code from the transmitter is transmitted to the measurement signals, the identification code individually identifying the transmitter.
  • the invention proposes a modular transmission system:
  • a sensory component 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.
  • 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:
  • the housing material itself can have the aforementioned components and / or the aforementioned surface structure.
  • 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.
  • a receiver 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.
  • 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.
  • 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.
  • the receiver is therefore equipped with the appropriate receiving modules, with each receiving module transmitting a signal to the respectively assigned medical device.
  • 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
  • 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.
  • the electronic component can preferably have an individual identifier, not just manufacturer or type-related.
  • 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.
  • 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.
  • 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.
  • a registration can also be implemented via an HF radio link.
  • 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.
  • 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.
  • the electronic component can therefore also send out a type identifier which designates the type of the sensory component.
  • the type identifier is sufficient to distinguish the individual transducers from one another can.
  • 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.
  • the sensor 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.
  • 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.
  • 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.
  • 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.
  • each individual transmitter contains an individual identifier, irrespective of or possibly supplementary to an identifier which identifies the type of the measuring sensor.
  • the transmitter is deregistered from the receiver as long as no correct operating position of the measurement sensor is determined.
  • 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.
  • 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.
  • the transducers 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.
  • 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.
  • 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.
  • 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.
  • a central receiver enables it to be arranged in an optimal reception position within a room.
  • 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 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.
  • 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.
  • 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.
  • the master system feeds the signals received by the individual sensors to the associated medical devices.
  • provision can be made to distribute a signal generated by a measurement sensor over several or all connected medical devices.
  • 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.
  • the senor 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the registration status e.g. transmitter not installed / not correctly connected to the sensory part
  • 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.
  • 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.
  • relay stations can be provided that receive the transmitted information and forward it to the master system.
  • the transmission path between the measuring sensor and the receiver can be enlarged.
  • 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
  • FIG. 1 arrangement for wireless transmission of electronic signals
  • the arrangement 1 comprises a measuring sensor 7 for medical measurements, as well as a further, not shown in detail transducer 7 ⁇ .
  • the measured value transducer 7 is used to measure medical quantities that are to be sent wirelessly to a medical device 3, 3.
  • the transmitter 5 has a transmitter 5 for the wireless transmission of electronic signals to a receiver 9 or a further receiver 9 ⁇ .
  • 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.
  • 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.
  • 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 ⁇ for receiving the signals.
  • a receiver 9 ⁇ is not shown in detail.
  • a receiver 9, 9 From the receiver 9, 9 ⁇ the wirelessly received signals a medical device 3, 3 ⁇ are supplied.
  • a receiver 9, 9 can be assigned one or more medical devices 3, 3 ⁇ to which the data can be sent.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

L'invention concerne un dispositif (1) et un procédé de transmission sans fil de signaux entre des appareils médicaux (3, 3'), à l'exception de dispositifs de réglage, ce dispositif comprenant un capteur de valeurs de mesure (7, 7'), présentant un émetteur, pour grandeurs de mesure médicales, et un récepteur (9, 9') qui reçoit les signaux du capteur de valeurs de mesure (7, 7') émis sans fil et coopère à son tour avec un appareil médical (3, 3') en transmettant les signaux. Selon l'invention, le capteur de valeurs de mesure (7, 7') comporte deux composants, à savoir un premier composant (11) de détection, pourvu d'au moins un capteur de mesure (13), par exemple un capteur de température ou une électrode d'E.C.G., et un second composant (15) électronique, qui comprend l'émetteur (5) pour l'émission des signaux captés. Le composant (11) de détection est relié de façon électrique, mécanique ou autre au composant électronique. Le dispositif (1) peut aussi comporter plus d'un capteur de valeurs de mesure (7, 7'), à chacun desquels peut être associé un module de réception (25, 5') se trouvant dans un récepteur (9, 9'). Selon le procédé présenté, le récepteur (9, 9') est mis en état de recevoir des signaux de l'émetteur (5) par le fait que l'émetteur (5) est annoncé au niveau du récepteur (9, 9'), un code d'identification étant transmis par ledit émetteur (5).
PCT/DE2003/002811 2002-12-19 2003-08-20 Dispositif et procede de transmission sans fil de signaux entre des appareils medicaux WO2004056263A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003260273A AU2003260273A1 (en) 2002-12-19 2003-08-20 System and method for wirelessly transmitting signals between medical devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10260068.6 2002-12-19
DE2002160068 DE10260068A1 (de) 2002-12-19 2002-12-19 Anordnung und Verfahren zur drahtlosen Übertragung von Messsignalen zwischen medizinischen Geräten

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WO2004056263A1 true WO2004056263A1 (fr) 2004-07-08

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DE (1) DE10260068A1 (fr)
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DE102005059131A1 (de) * 2005-12-10 2007-06-14 Fresenius Medical Care Deutschland Gmbh Anordnung aus medizinischen Behandlungseinheiten und Peripheriegeräten
DE102007018741A1 (de) 2007-04-20 2008-10-23 Fresenius Medical Care Deutschland Gmbh Anordnung aus medizinischen Behandlungseinheiten und Peripheriegeräten sowie Peripheriegerät und Behandlungseinheit zur Verwendung in einer derartigen Anordnung
WO2011023492A1 (fr) * 2009-08-28 2011-03-03 Hyb D.O.O. Convertisseur de données de mesure destiné à un système de surveillance de patient
DE102013103335A1 (de) * 2013-04-03 2014-10-09 B. Braun Avitum Ag System zur Erfassung eines Zustands einer Dialysatorvorrichtung, und hierfür verwendbare Sensorvorrichtung
DE102013103336A1 (de) * 2013-04-03 2014-10-09 B. Braun Avitum Ag Vorrichtung zur Identifizierung einer Dialysatorvorrichtung oder einer Komponente derselben, und hierfür verwendbare Sensorvorrichtung
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DE102005059131B4 (de) * 2005-12-10 2009-12-03 Fresenius Medical Care Deutschland Gmbh Anordnung aus medizinischen Behandlungseinheiten und Peripheriegeräten
US10806841B2 (en) 2005-12-10 2020-10-20 Fresenius Medical Care Deutschland Gmbh System of medical treatment units and peripheral devices
DE102005059131A1 (de) * 2005-12-10 2007-06-14 Fresenius Medical Care Deutschland Gmbh Anordnung aus medizinischen Behandlungseinheiten und Peripheriegeräten
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WO2011023492A1 (fr) * 2009-08-28 2011-03-03 Hyb D.O.O. Convertisseur de données de mesure destiné à un système de surveillance de patient
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DE102013103336A1 (de) * 2013-04-03 2014-10-09 B. Braun Avitum Ag Vorrichtung zur Identifizierung einer Dialysatorvorrichtung oder einer Komponente derselben, und hierfür verwendbare Sensorvorrichtung
US10357599B2 (en) 2013-04-03 2019-07-23 B. Braun Avitum Ag System for identifying a dialyzer apparatus or a component thereof, and sensor device which can be used for this purpose
DE102013103335A1 (de) * 2013-04-03 2014-10-09 B. Braun Avitum Ag System zur Erfassung eines Zustands einer Dialysatorvorrichtung, und hierfür verwendbare Sensorvorrichtung
DE102013014097A1 (de) * 2013-08-23 2015-02-26 Fresenius Medical Care Deutschland Gmbh Einwegartikel für die Dialysebehandlung, Dialysegerät und eine Wasseraufbereitungsanlage für Dialysat
EP3703319A1 (fr) * 2019-02-28 2020-09-02 Siemens Mobility GmbH Procédé d'attribution de signaux à différents composants, utilisation, programme informatique et support d'enregistrement lisible par ordinateur

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