EP1075211A1 - Systeme de telemesure medical - Google Patents

Systeme de telemesure medical

Info

Publication number
EP1075211A1
EP1075211A1 EP99929072A EP99929072A EP1075211A1 EP 1075211 A1 EP1075211 A1 EP 1075211A1 EP 99929072 A EP99929072 A EP 99929072A EP 99929072 A EP99929072 A EP 99929072A EP 1075211 A1 EP1075211 A1 EP 1075211A1
Authority
EP
European Patent Office
Prior art keywords
sensor
telemetry system
measuring
measured value
measuring sensor
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP99929072A
Other languages
German (de)
English (en)
Inventor
Jens Kuhn
Hans-Ullrich Marquardt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GME Rechte und Beteiligungen GmbH
Original Assignee
Geratherm Medical AG
GME Rechte und Beteiligungen GmbH
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 Geratherm Medical AG, GME Rechte und Beteiligungen GmbH filed Critical Geratherm Medical AG
Publication of EP1075211A1 publication Critical patent/EP1075211A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02Means for indicating or recording specially adapted for thermometers
    • G01K1/024Means for indicating or recording specially adapted for thermometers for remote indication
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0004Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
    • A61B5/0008Temperature signals

Definitions

  • thermometers Today, three types of devices are common for routine temperature measurements on people in hospitals: analog, electronic and infrared clinical thermometers.
  • the traditional analog liquid-glass clinical thermometers are based on the temperature-dependent expansion of a liquid metal, especially mercury.
  • the measurements can be made axillary, orally or rectally.
  • the reading of the measured temperature value and the shaking back of the thermometer are carried out regularly by the medical staff.
  • These thermometers are inexpensive and can easily be disinfected due to the glass housing.
  • Compact electronic clinical thermometers are based on the temperature-dependent change in resistance of a thermistor.
  • thermometers have a plastic cover. These thermometers can also be used for axillary, oral or rectal measurements. For hygienic reasons, the medical personnel must provide such thermometers with a coating before the measurement. This causes additional costs and hazardous waste. The thermometers are almost unbreakable, easy to read and only a little more expensive than analog clinical thermometers. However, they are also often stolen.
  • thermometers measure the temperature-dependent radiation from the eardrum. They work very quickly, but are only available for measurements in the ear, and the medical interpretation of the measurement results is not always unproblematic. Again, it is necessary for hygienic reasons to apply a new protective cover before each measurement. The placement of the thermometer at the measuring location requires trained personnel and can cause injuries and pain if measurements are repeated. Such clinical thermometers are less suitable for private use and are therefore not stolen; but they are much more expensive than analog and electronic clinical thermometers. - 2 -
  • a micro measuring probe is implanted in the body and fed with energy for measurement by a high-frequency field.
  • the measured value is transmitted by absorption modulation of the HF field. Because of the small size of the measuring probe, it is difficult to feed the energy required for measuring and transmitting the measured value into the probe. The patient must therefore be exposed to a very strong electromagnetic field.
  • the measuring probe is switched on and off by switching the RF field on and off. Measured values can only be transferred when the probe is on the patient. This arrangement is unsuitable for routine measurements in hospitals.
  • the telemetric measuring probe is inserted into an adhesive plaster, which is attached to the patient's skin at the desired location.
  • adhesive plaster Apart from the fact that this type of arrangement is also not suitable for fever measurement at the usual measuring points, the patient's skin is unnecessarily irritated by the repeated repositioning and removal of plasters, as would be necessary for routine measurements, and undesirable hazardous waste is generated.
  • Changing the patch also causes work for the nursing staff.
  • the configuration of a large-format antenna in the form of a pillow to be placed under the patient, which is recommended in this document, is also complex and hardly practical for hygienic reasons. With this solution, too, the measuring probe only works within an RF field and only delivers meaningful measuring results when the probe is on the patient.
  • US 4,503,862 describes a system according to the first part of claim 1, in which each individual patient receives a battery-operated sensor. During a tour, the caregiver goes from one patient to the next with a receiving unit and activates the sensor transmitter closest to the receiving unit, so that the determined temperature value is transmitted. This process must - 3 -
  • the fever monitoring system proposed in US 4,865,044 works with a large number of telemetric sensors. After a predetermined threshold value is exceeded, these sensors continuously send their identification number and a modulated signal that corresponds to the measured temperature at certain intervals. It is disadvantageous that the sensors transmit continuously and regardless of whether the receiving device is switched on or the sensors are within range of the receiving device after the start condition has been reached. Periodic on / off switching of the sensors has been proposed to save energy. With relatively short periods, current measured values can be obtained practically constantly on the one hand, and on the other hand this results in high energy consumption. If the period is long, the energy consumption drops, but the waiting time until the next current measured value arrives may be relatively long. Since a specific retrieval of the determined temperature data is not provided for in this proposed solution, this system is not suitable for routine temperature measurements in hospitals.
  • the invention is based on the general object to provide a medical telemetry system for vital data, in particular for the routine detection of body temperature, in which the disadvantages of the prior art described above are eliminated.
  • a more specific task can be seen in making body temperature measurement at the usual measuring points inexpensive (i.e. with low costs per measurement), with as little work as possible for the care personnel, with maximum data security and high comfort for the patient.
  • the individual measuring sensors of the medical telemetry system continuously and automatically monitor a predetermined threshold value and start a measuring process when this threshold value is exceeded. The first the average measured value is stored in the sensor and sent on request by the recording device.
  • each patient When the patient is admitted, each patient receives his sensor. Within an agreed period of time, the patients place their personal sensor at the designated measuring point. After the measurement value has been determined, the patient can remove the sensor from the measuring point and store it in a holder provided for this purpose.
  • the measuring sensor remains active for a defined period of time even after the end of the measuring process, within which it saves the determined measured value and transmits the measured value after the arrival of a call signal.
  • Nursing staff may only be required for the acquisition of the measurement values stored in the sensors, in order to telemetrically record the measurement value with the aid of the detection device which is only brought into the vicinity of the individual sensors after sending out a request signal. Neither the patient nor the sensor must be touched for this purpose, which is particularly advantageous in the treatment of highly infectious diseases.
  • the presence of the patient at the time the measured value is called up is by no means necessary. Since the sensor itself does not have a measuring display, it is worthless for private purposes without a detection device, which should have a significant impact on the loss in the
  • the embodiment according to claim 2 is inexpensive since the patient does not have to put the sensor into operation, and also has the advantage that no mechanical buttons or switches with corresponding openings in the housing of the sensor are necessary, which primarily affects the hygienic properties of the sensor. Housing improved.
  • the embodiment according to claim 3 realizes a maximum system customary for routine temperature measurements.
  • the embodiment provided in claim 4 means a high level of comfort for the patient, since he only has to leave the sensor at the measuring point for as short a time as necessary.
  • the measure of claim 5 can be expedient insofar as measured values can be evaluated in the shortest possible time.
  • the ID code also transmitted according to claim 6 ensures a clear and unambiguous assignment of the measurement results recorded by the recording device to the individual patients. - 5 -
  • the development of the invention according to claim 9 has the advantage that the sensor corresponds externally to a conventional clinical thermometer, so that the patients have no difficulty in carrying out the measuring process themselves as usual.
  • the housing is suitable for holding a sufficiently powerful battery and antenna, which favors signal transmission.
  • Claims 11 and 12 relate to the possibility, in addition to the actual measured values, of also transmitting information on the state of the individual measuring sensors and displaying them on the recording device.
  • This information primarily includes the state of charge of the battery. If the voltage falls below a critical value, the user receives information that a battery change is necessary.
  • a reference counter reading is also transmitted, which is characteristic of the overall function of the sensor. If this counter reading changes to values outside a range of values defined as a standard, a device malfunction can be shown in a suitable manner on the display of the detection device, for example.
  • FIG. 1 shows a sensor
  • Figure 2 shows a detection unit for use in connection with sensors according to Figure 1
  • Figure 3 shows a variant of the entire telemetry system. - 6 -
  • the sensor 10 shown schematically in FIG. 1 has a housing 11, the outer shape of which corresponds to that of a traditional liquid-glass clinical thermometer or a compact electronic clinical thermometer.
  • the housing 11 is completely closed to the outside and consists of disinfectable or sterilizable plastic.
  • a temperature-sensitive measuring element 12 for example a thermistor, is arranged at the end of a narrower part of the approximately rod-shaped housing 11.
  • the larger diameter part of the housing 11 houses an electronic measuring and control circuit 13, a battery 14, an antenna 15, a memory 16 and a preferably acoustic signal generator 17.
  • the components 13 to 17 are arranged on a common circuit board 18 which is inside the housing 11 is attached.
  • the measuring element 12 is connected to the measuring and control circuit 13 via connecting wires 19. Further connecting lines between the components 13 to 17 are located on the printed circuit board 18 and are not shown in the drawing.
  • the antenna 15 is shown only schematically in FIG. 1 as an area which occupies part of the printed circuit board 18. In a practical embodiment, the antenna 15 can also extend in one or more loops over the entire outer edge of the printed circuit board 18 in order to enlarge its effective area.
  • the detection device 30 shown schematically in FIG. 2 has a processor 31, a display 32 in the form of a liquid crystal display, an antenna 33, a keyboard 34 and external connections 35. In practical use, each patient receives his or her on admission
  • the nursing staff notes the assignment of patient and ID code of the sensor in a list or in another suitable manner. At certain times (e.g. between 8 a.m. and 9 a.m.) or when requested by the nursing staff, the sensor 10 is placed at the specified measuring location. Most patients should be able to do this themselves. Switch-on or control processes are not necessary. The presence of nursing staff is not necessary even during the heating phase of the measuring element.
  • the sensors 10 constantly monitor a defined threshold value (in the case of body temperature measurement, for example 32 ° C.) and - 7 -
  • the patient can remove the measurement receiver 10 from the measurement location and store it in a holder provided until the next measurement. Interim manipulations, such as shaking down the mercury column of conventional clinical thermometers, are not necessary.
  • the caregiver approaches the patient's sensor 10 with the detection device 30 up to a distance of 1 to 2 m.
  • a call signal is transmitted from the antenna 33 of the detection device 30 to the measuring and circuit 13 of the sensor 10, which then transmits the measured value recorded by the measuring element 12 via the antenna 15.
  • an ID code is transmitted, which is stored in the memory 16 of the sensor 10.
  • the measured value is automatically linked to an identification of the sending measuring sensor 10 and thus of the patient concerned.
  • the measurement value in connection with the ID code is shown on the display 32 of the detection device 30.
  • one or more status signals are transmitted which indicate the functionality of the measuring sensor
  • Display 32 of the detection device 30 is e.g. "Error” and if the battery voltage is too low e.g. "Low Bat” displayed.
  • the measured value, ID code and status signal can, if necessary, be transmitted further to a PC, a printer, a further detection unit 30 or a remote reading device via the connections 35 or via another wireless transmission channel.
  • the caregiver only takes a few minutes to record the measured values of an entire station using the recording device 30. All of the measured values are unmistakably stored due to their link to the ID code of the sensor 10 and can be stored at any time. - 8th -
  • the caregiver selects the individual data records by pressing the up or down key on the keyboard 34 of the detection device 30.
  • the entire measured value memory of the detection device 30 is deleted by pressing the "clear" key. This ensures that after each round only the measured values that are actually called up are stored in the detection device 30. Missing or non-functional, or not retrieved measuring sensors 10 are missing from the data record list of the detection device 30.
  • thermometer plastic covers that are widely used today to avoid cross-contamination are superfluous in the medical telemetry system according to the invention, which in addition to a considerable cost advantage serves to avoid hazardous waste. Furthermore, neither the patient nor the nursing staff is attracted to the possession of the sensor, so that the theft frequency should be low.
  • an intermediate station 40 is permanently installed in the hospital room. Via the intermediate station 40, the patients are asked at certain times by an optical and / or acoustic signal to place the sensor 10. After the end of the measuring process, the intermediate station 40 automatically retrieves the temperature values together with the ID codes and the status signals and transmits them to a central recording device 30.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

L'invention concerne un système de télémesure médical utilisé pour détecter des données vitales, en particulier la température du corps, qui est constitué d'une pluralité de capteurs de mesure (10) et d'un appareil de détection (30). Chaque capteur de mesure (10) est placé à l'endroit prévu sur le corps d'un patient et mesure automatiquement la valeur vitale à mesurer. Chaque capteur peut, selon un signal d'émission de mesure de préférence acoustique, être éloigné du point de mesure et déposé à distance de celui-ci. Pendant une période définie, par exemple deux heures, le capteur de mesure (10) reste à l'état actif, état dans lequel il émet, sur demande, les valeurs de mesure trouvées. A l'aide de l'appareil de détection (30), la valeur de mesure peut être, avec un code d'identification et des signaux d'état, concernant par exemple la tension de la batterie, appelée et mémorisée. Après écoulement de la période définie, la valeur de mesure est effacée et le capteur de mesure (10) passe automatiquement à un état de repos économisant l'énergie.
EP99929072A 1998-04-30 1999-04-29 Systeme de telemesure medical Withdrawn EP1075211A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19819521 1998-04-30
DE19819521 1998-04-30
PCT/DE1999/001287 WO1999055221A1 (fr) 1998-04-30 1999-04-29 Systeme de telemesure medical

Publications (1)

Publication Number Publication Date
EP1075211A1 true EP1075211A1 (fr) 2001-02-14

Family

ID=7866401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99929072A Withdrawn EP1075211A1 (fr) 1998-04-30 1999-04-29 Systeme de telemesure medical

Country Status (4)

Country Link
US (1) US6478748B1 (fr)
EP (1) EP1075211A1 (fr)
JP (1) JP2002512829A (fr)
WO (1) WO1999055221A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
GB2395794A (en) * 2002-11-28 2004-06-02 Actherm Inc Detachable two-part clinical thermometer

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US20020031602A1 (en) * 2000-06-20 2002-03-14 Chi Zhang Thermal treatment of solution-processed organic electroactive layer in organic electronic device
US20050226310A1 (en) * 2002-03-20 2005-10-13 Sanyo Electric Co., Ltd. Adhesive clinical thermometer pad and temperature measuring pad
SE523545C2 (sv) * 2002-09-19 2004-04-27 Foss Tecator Ab Metod, en portabel anordning och ett mätinstrument för standardisering av ett satellitmätinstrument till ett motsvarande huvudmätinstrument
SG108873A1 (en) * 2002-09-20 2005-02-28 Dso Nat Lab Temperature telemeter
US20050163189A1 (en) * 2003-03-20 2005-07-28 Sanyo Electric Co., Ltd. Temperature information reader
US20050147151A1 (en) * 2003-03-20 2005-07-07 Sanyo Electric Co., Ltd. System and method for measuring temperature
JP4593083B2 (ja) * 2003-04-11 2010-12-08 オリンパス株式会社 検査データ管理方法
CN101179985B (zh) * 2005-05-24 2012-10-03 皇家飞利浦电子股份有限公司 用于现场测量的自动标识
GB0608829D0 (en) * 2006-05-04 2006-06-14 Husheer Shamus L G In-situ measurement of physical parameters
GB0617451D0 (fr) 2006-09-05 2006-10-18 Medical Prediction Ltd
US7507021B2 (en) * 2006-10-06 2009-03-24 Tyco Healthcare Group Lp Automatic activating system for thermometer
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US8616438B2 (en) 2011-03-30 2013-12-31 Hill-Rom Services, Inc. Optical detector at point of care
US8844820B2 (en) 2011-08-24 2014-09-30 Hill-Rom Services, Inc. Multi-directional optical reader for a patient support
JP5582174B2 (ja) * 2011-09-30 2014-09-03 キヤノンマーケティングジャパン株式会社 測定データ処理システム、測定データ処理装置、測定データ処理装置の制御方法およびそのプログラム
JP5867236B2 (ja) 2012-03-29 2016-02-24 富士通株式会社 データ収集方法、移動端末およびデータ保存装置
DE102018126039A1 (de) * 2018-10-19 2020-04-23 Innogy Se Effiziente Übertragung von Daten und/oder Informationen von elektronischen Verbrauchsmengenzählern
JP7168911B2 (ja) * 2019-01-29 2022-11-10 株式会社島津製作所 撮像環境測定器および撮像環境測定システム
CN214260064U (zh) * 2020-05-21 2021-09-24 深圳市创鸿新智能科技有限公司 一种便携式消毒测温装置及通讯系统

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GB2395794A (en) * 2002-11-28 2004-06-02 Actherm Inc Detachable two-part clinical thermometer
GB2395794B (en) * 2002-11-28 2006-02-01 Actherm Inc Assembly method and structure of an electronic clinical thermometer

Also Published As

Publication number Publication date
JP2002512829A (ja) 2002-05-08
US6478748B1 (en) 2002-11-12
WO1999055221A1 (fr) 1999-11-04

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