WO2005046466A1

WO2005046466A1 - Sensor arrangement for determining the vital state of a person who is to be medically monitored

Info

Publication number: WO2005046466A1
Application number: PCT/EP2004/012038
Authority: WO
Inventors: Robert Schmidt; Joachim Mörsdorf; Christian Weigand
Original assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Priority date: 2003-11-05
Filing date: 2004-10-25
Publication date: 2005-05-26
Also published as: DE10352188A1

Abstract

The invention relates to a sensor arrangement (10) which is used to determine various vital parameters of a person who is to be medically monitored. Said sensor arrangement (10) is arranged about an extremity of a person who is to be monitored and comprises an armband (12), which surrounds the extremity, and a plurality of sensor elements (14a-c), which are used to detect the various vital parameters of the person who is to be monitored. The sensor elements (14a-c) are arranged on one side of the armband (12) which is oriented towards the extremity. Said sensor arrangement also comprises a transmitter unit (16) for the wireless transmission of vital information based on detected vital parameters.

Description

Sensor arrangement for determining the vital state of a person to be medically monitored

description

The present invention relates to a sensor arrangement for determining the vital state of a person to be monitored medically, and in particular to a sensor arrangement for monitoring and evaluating a plurality of detected vital parameters of a person to be monitored, in order to provide reliable and qualified care provided by a technical measuring device medically monitored persons, such as people in need of care,

J. Seniors, patients, etc., or even people, such as Work to enable in highly hazardous environments, e.g. Sewer workers, nuclear power plant workers, firemen, civil protection workers, mine workers, and the like.

) The aging population of almost all industrial societies brings with it the need to look after more and more elderly people in need of care, with increasing attention being paid to cost-effective solutions due to increasing economic requirements. When caring for people in need of care, accommodation in an inpatient facility is seen as the last and most expensive way to care for them. Could the data subjects be

_; technology-based care would remain in their familiar living environment, this would be subjectively considerably more pleasant for a considerable part of the people concerned, while at the same time the economic benefits for the social system or the community of solidarity would be considerable. At present, care for people in need of care is only possible through the presence of nursing staff on site, which, however, will no longer be possible in the foreseeable future due to the high costs and the burden on the social security funds. The same applies to patients who could be released earlier from inpatient care after a hospital stay or ^" a rehabilitation measure." Into the familiar, home environment.

For the medical monitoring of people in need of care or also people who are in hazardous environments.

-, stop (must), only a few monitoring arrangements are known in the state of the art, which can be used by the persons to be medically monitored even in their familiar living or working environment during the usual daily or work routine without restriction. ) So far, fingertip sensors (finger clip sensors) for oxygen saturation measurement in the blood and wrist sensors have been used to monitor vital parameters

P is known for the blood pressure measurement that the person to be medically monitored can use in his familiar environment.

Finger clip sensors, which can also be used as

- Invasive oximeter arrays are generally used to determine the oxygen saturation in the human blood of the person to be monitored. With the help of optical scatter measurements on parts of the body through which the surface flows, such as earlobes or fin tips, you get a measure of the absorption coefficient of the blood. The size of the absorption coefficient of blood is strongly dependent on the oxygen content in red light and almost independent of it in light in the near infrared range. A measure of the oxygen saturation of the blood can be obtained by measuring the intensity ratio of the light in both wavelength ranges.

When measuring blood pressure with a blood pressure monitor using a wrist cuff, the cuff is placed around the person's wrist before air is pumped into the air bag of the wrist cuff with an air pump. The forearm is thus pressed together by the wrist cuff, in which state the arterial pulse wave is transmitted to the blood pressure monitor and converted there into an electrical signal. The electrical signal is then fed to an electronic circuit, by means of which the blood pressure of the person to be medically monitored is measured or determined.

However, the above-mentioned procedures only allow the determination of a single vital parameter of the person to be medically monitored, and the person to be medically monitored, if he is alone in his familiar living environment, must be able to interpret the results displayed by the measuring devices to be able to draw conclusions about their current vital state. However, since people in need of care, such as senior citizens, etc., are often overwhelmed with correctly interpreting the measured values, these devices cannot provide reliable, continuous medical monitoring of these people in "home use". persons whose health status may be subject to critical changes or influences must continue to require trained nursing staff to be essentially present for care. > Based on this prior art, the object of the present invention is to provide a sensor arrangement for the reliable determination of various vital parameters

₁ to create a person to be monitored medically, by means of) reliable, qualified and secured by a technical measuring device care of persons to be monitored medically, such as senior citizens, patients etc., or also persons, such as workers, who -, are in high-risk environments, can be made possible 5.

This object is achieved by a sensor arrangement for determining various vital parameters of a person to be monitored according to claim 1.

) The present invention provides a sensor arrangement for determining various vital parameters of a person to be medically monitored, the sensor arrangement being arranged around an extremity of the person to be monitored, and a carrying strap for enclosing the extremity, a plurality of sensor elements for detecting the various vital parameters, whereby the sensor elements are arranged on the carrying band on one side of the carrying band facing the extremity, and have a transmitting unit for wireless transmission of vital information based on the acquired vital parameters. The present invention is based on the knowledge that a multisensor data acquisition and evaluation, for example, is integrated in a wristband with event detection for medically expected events

5 of the vital state of the person to be monitored can be connected in such a way that impending critical changes in the vital state of the person to be medically monitored may be detected before their occurrence, but later, at the latest when they occur, and by radio.

) Wireless transmission to a corresponding higher-level entity, such as a monitoring device, for example, which is connected to an emergency center, can be signaled. ^j

5 The sensor arrangement according to the invention is arranged on a carrying strap that encloses an extremity of the person to be medically monitored, the carrying band being designed, for example, as a bracelet for enclosing the wrist of the person to be medically monitored.

D In this way, the sensor arrangement according to the invention can be worn according to a wristwatch by the respective person or patient, even during everyday work. Since the sensor arrangement according to the invention has a plurality of different sensor elements

5 for recording a plurality of different vital parameters, effective monitoring of the health status of the person to be medically monitored, e.g. a person in need of care, in their home environment and by people in dangerous working

D conditions can be achieved.

It is particularly advantageous in the present invention that critical developments in the state of health or the vital state can be predicted by evaluating a vital parameter and / or a combination of a group of relevant vital parameters. The present sensor arrangement according to the present invention also enables suitable signaling and visualization of the state information relating to the vital state to the person concerned and to a higher-level care facility via wireless, radio-based communication methods.

The sensor arrangement according to the invention enables a real-time data transmission of the various determined vital parameters from the sensor arrangement to be carried out wirelessly upon an explicit request or automatically at predeterminable intervals and in particular when a critical condition is detected to the superordinate care facility to clarify the current health status.

Furthermore, the sensor arrangement according to the invention can be used to determine, process and transmit body signals in the form of vital parameters, which can be used for a so-called “biofeedback”.

Biofeedback is the effect of physical / mental states on parameters of the vegetatively controlled organ system, e.g. (unconscious) breathing, heart rate, temperature, skin resistance (through sweating), etc. Physiotherapists use biofeedback to help stroke patients reactivate their muscles. And psychotherapists use biofeedback to help tense or cramped patients relax. In addition, the sensor arrangement according to the invention, which is preferably designed as a wristband system, can be supplemented by further wirelessly networked sensor devices which can detect additional vital parameters and / or environmental influences and can be incorporated into the assessment of the current or expected vital status of the person to be medically monitored.

1 Preferred embodiments of the present invention will now be explained in more detail with reference to the accompanying drawings. Show it:

1 shows a side view of the sensor arrangement according to the invention for determining various vital parameters of a person to be medically monitored; and

P Fig. 2 is a plan view of the sensor ι arrangement according to the invention with an optional display panel.

1 and 2, a preferred exemplary embodiment of the sensor arrangement i according to the invention for determining various vital parameters of a person to be examined medically will now be discussed in detail.

As shown in FIG. 1, the sensor arrangement 10 according to the invention has a carrying strap 12 for enclosing an extremity and, for example, the forearm or wrist of the person to be medically monitored. A plurality of sensor elements 14a, are on the carrying band 12 on the side of the carrying band 12 facing the extremity. 14b, 14c, the sensor elements 14a-c being provided for detecting various vital parameters of the person to be medically monitored.

It should be noted that three sensor elements 14a-c are shown in the exemplary embodiment shown in FIG. 1, it being clear from the following explanations that an essentially arbitrary number of sensor elements for detecting different vital signs

D arameter of the person to be medically monitored can be provided.

The sensor arrangement 10 also has a transmission unit 16. on, which is assigned to the sensor elements 14a-c, wherein

5, the transmitting unit 16 is provided to send so-called vital information based on the acquired vital parameters wirelessly, for example, to an externally arranged base station (not shown in FIG. 1) in the vicinity of the person to be monitored and from there to a higher-level care provider or directly to the higher-level one Submit supervisor.

The functioning of the sensor arrangement 10 shown in P Fig. 1 is now explained in detail below. With regard to the following description of the present sensor arrangement according to the invention, it should be noted that the sensor arrangement is also assigned an evaluation device 18 which is provided to detect the sensor elements 14a-c to evaluate and further process vital parameters or the vital information of the person to be medically monitored based on the vital parameters acquired. In this case, in a preferred embodiment embodiment of the present invention assumed that this evaluation device 18 is also on the carrying strap, as is shown by way of example in FIG. 1, the evaluation device 18 in this case being connected to the sensor elements 14a-14c in order to record the detected vital parameters, and is also assigned to the transmission unit 16 in order to trigger the wireless transmission of the vital information, the evaluation device 18 being provided to evaluate and process one or more of the detected vital parameters in order to analyze the current vital information or the current vital status (health or life status) ) of the person to be medically monitored.

As will be explained in the following, the evaluation device 18 can also be arranged externally to the sensor arrangement 10 and implemented, for example, in an assigned base station, but essentially the same radio

P tionality, as shown below. 1, the carrying strap 12 for enclosing an extremity of the person to be medically monitored is designed, for example, as a bracelet body, on the inside of which miniaturized, primarily non-invasive sensor elements are arranged or introduced, around which record various vital parameters to be recorded. Any sensor elements can generally be used as sensor elements 14a-c with

- Which vital parameters, such as blood oxygen saturation, ECG, temperature, skin impedance, muscle tension, pulse etc., can be measured electronically. Exemplary conceivable vital parameters and exemplary each Measurement methods and sensors may include, but are not limited to, the following.

Measured variable measuring method / sensor

Blood oxygen saturation Sp0 ₂ method (wavelength based)

EKG electrodes and measuring amplifier

Temperature temperature sensor (semiconductor-based or use of material properties, e.g. changes in resistance)

Main Impedance Capacitance or Impedance Measurements

Muscle tension Tonus: electrodes (see EKG) contraction: strain gauges

Pulse e.g. Piezoelectric pressure transducer

Blood sugar content (glucose) light emission (analog Sp0 ₂ )

Blood pressure cuff, pulse wave

The arrangement of the sensor elements 14a-c on the inside of the lanyard, which is designed, for example, as a bracelet for the wrist, is selected on the basis of the physiological conditions on the extremities of the human being, since numerous arteries run close to the skin surface at this point, which is a prerequisite for example for the Sp0 ₂ measurement (blood oxygen saturation measurement). The flat arrangement of arteries in this body area in the extremities and especially in the wrist area ensures a certain resistance of the sensor arrangement to misplacement of the lanyard, for example when the lanyard is related to the extremity slip. As an advantageous consequence of this, the carrying strap 12 of the sensor arrangement 10 according to the invention can be attached to the extremity with a relatively low tension. As a result, the acceptance of the sensor arrangement 10 according to the invention for the person equipped with it can be significantly increased.

The vital parameters to be recorded are, for example, the pulse, the blood oxygen saturation (pulse

D soximetric), the body temperature and the EKG (electrocardiogram). However, it should be noted that the present invention essentially applies to all vital parameters that can be detected by non-invasive sensor elements 14a-c

is interpretable. 5 As shown in FIG. 1, a Sp0 ₂ sensor (blood oxygen saturation sensor) 14a, a temperature sensor 14b and an electrode 14c for a single-channel ECG (electrocardiogram) can accordingly be located on the inside of the carrying strap 12, for example.

Since the measurement of an EKG is based on a potential difference, a second electro-Pde is required to detect it, which is attached, for example, to the chest of the person to be medically monitored. This second electrode is now connected to the sensor arrangement 10 according to the invention, for example via a cable. With regard to the temperature sensor 14b used, it should be noted that according to the sensor arrangement 10 according to the invention, for example, a separate temperature sensor 14b can be used. It should also be noted that some Sp0 ₂ sensors 14b have integrated temperature Have sensors that can be used to compensate for the temperature drift of the Sp0 ₂ sensors and in particular the LEDs (light-emitting diodes) used in these sensors. If these uses in the Sp0 ₂ sensors domestic i tegrated temperature sensors in the present invention sensor assembly 10 as temperature sensors for detecting the body temperature to be monitored ^"person it is clear that thereby the support band nor -i compact, light and robust can be carried out Furthermore, for example, a further temperature sensor (not shown in FIG. 1) for detecting the ambient temperature can be used on the outside of the carrying band 12. As already stated above, an evaluation device 18 is preferably arranged on the carrying band 12, wherein the miniaturized evaluation device 18 is electrically connected to the sensor elements 14a-c) arranged on the carrying belt 12. The evaluation device 18 has, for example, a microcontroller (microcontroller) with a storage device and peripheral equipment.

Since the (used) microcontroller contains essential components such as RAM, ROM, clock generation etc. on the chip, in this context, for example, peripheral equipment

Power management and charge control for the battery, - battery monitoring, any A / D converter of high resolution (> 10 bit), possibly necessary analog amplifiers, Radio module, and (optional) display to understand.

The evaluation device 18 can advantageously be used to control the entire sensor arrangement 10 ^″ according to the invention, the control device 18 preferably

-, the measurement data processing, i.e. the processing of the vital parameters recorded and the event detection, i.e. the detection of the current or impending vital state of the person to be medically monitored, as well as their signaling and transmission, i.e. Trigger the transfer

-, by the transmitting unit 16, takes over.

An evaluation algorithm is now integrated in the evaluation device 18, for example, which examines the acquired vital parameter data for medically relevant events in order to carry out an emergency detection, for example. The examination of the vital parameter data can now be achieved according to the invention on the one hand by evaluating individual signal profiles of the vital parameters as well as by a suitable combination of different signal profiles of the vital parameters in order to make statements about the current and / or the expected vital state of the person to be medically monitored.

The momentary vital information determined by the evaluation device 18 can now contain different information, such as status information or status messages about the current vital condition, real-time measurement data in the form of the measured values of the detected vital parameters and / or an alarm signal regarding the vital condition of the waking person. The alarm signal, which can be transmitted by the transmitting unit, can, for example, indicate a specific critical vital state of the person to be examined medically or an impending critical vital state and can be transmitted as a precaution.

The vital information can, for example, from the ^"transmitter 16 to an external base station (not shown in

] Fig. 1) are transmitted, which in turn the vital information

J on via a communication device, e.g. Telephone, mobile phone, Internet etc., to a higher-level central or care facility to clarify the state of health of the person to be medically monitored

, forwarded.

5 Of course, it is also conceivable that the transmitting unit 16 transmits the vital information directly to the higher-level central office or the care facility.

j With regard to the evaluation device 18 arranged on the carrying strap 12, it should be noted that it adjusts the time interval between the detection of the vital parameters by the sensor elements 14a-c based on the evaluated vital parameters or based on the vital information.

5 len and / or also the time interval of the transmission of the vital information by the transmitting unit 16 depending on the transmitted vital state in order to be able to deal with a specific health hazard of the person to be medically monitored.

D to enable reliable monitoring of the target person.

Since the sensor arrangement 10 according to the invention is designed as an independent monitoring system, it is preferable se also arranged or integrated a battery in the carrying strap 12, which is used to fasten the sensor arrangement 10 according to the invention to the patient's arm. The battery can be constructed, for example, from a flexible polymer battery, wherein essentially any battery arrangement can be used to supply energy to the electronic components of the sensor arrangement 10 according to the invention.

1) Since the evaluation device 18 can set the time interval between the acquisition times of the vital parameters as well as the time interval between the transmission times of the vital information depending on the respective detected vital condition - of the person to be medically monitored,> it is also possible to operate the sensor arrangement 10 according to the invention very energy-saving and therefore designed for a long battery life. Very long operating intervals of the sensor arrangement 10 according to the invention

P between required battery changes increase the acceptance! dance of the sensor assembly 10 by the operator and the patient.

As is now shown in FIG. 1 and in particular also in FIG. 2, the sensor arrangement 10 according to the invention can optionally have a display 20, for example by LEDs (light-emitting diodes) or also as a display panel, as detailed in this is shown in Fig. 2 is executed.

3 l As already indicated above, the transmission unit 16 controlled by the evaluation device 18 sends so-called status messages, alarm signals and / or real-time measurement data to a higher-level central office or support center. punch or transmitted via a base station to this higher-level instance, the transmitting unit 16 also being able to be assigned a receiving unit (not shown in FIGS. 1 and 2) which receive messages from the higher-level instance 5 (for example via the base station or also directly) can. These messages can also be displayed on the display panel 20. Furthermore, it is possible to display all status information, measurement values, values (vital parameters) and information relating to the com-

) to indicate communication connection. The display field 20 arranged on the upper side of the carrying band 12 can therefore display both the detected vital parameters as well as various status messages, with the status messages including information about the state of the battery and the radio connection.

5 len. In order to increase the wearing comfort for the person to be medically monitored, the display panel can be made of a flexible substrate. Furthermore, the display of the time can be provided in the display field 20 for reasons of expediency and convenience.

FIG. 2 shows an exemplary embodiment of the display 20, with different vital parameters in different exemplary display areas 20a-d of the display field. 20 are shown. The display area 20a shows the blood

5 Oxygen saturation level (in%), the display area 20b indicates the body temperature (in ° C.), the display area 20c indicates an EKG value (in bps), and the display area 20d provides information regarding the transmission (Tx ok =

_: Transmission OK).

) It should however be noted that the Darge in Fig. 2 ^¬ presented display panel 20 is merely optional, and when designed for a very simple operation Version no display field 20 is used in the sensor arrangement 10 according to the invention, but the status messages can be output via different or differently colored LEDs. For example, a green LED can be provided for displaying a detected vital state in the normal range and a red LED can be activated for displaying a recorded vital state outside the normal range.

) As already indicated above, the data collected is transferred, i.e. the vital information, via the transmitting unit 16, for example to an assigned base station (not shown) by means of wireless radio technology, the sensor arrangement 10 according to the invention not being

3 a special wireless transmission standard is limited.

With regard to the evaluation device, it should also be noted that it is also conceivable that the evaluation device

3 device is arranged externally in an assigned base station, the detected and transmitted vital parameters being evaluated and processed only after transmission to the base station in the evaluation device arranged there in order to obtain the current vital information

5 to obtain the vital state of the person to be medically monitored and to forward it to the higher-level monitoring entity, and to optionally trigger the display of messages on the display panel 20.

3 As already stated above, the sensor arrangement 10 according to the invention can also have a receiving unit in addition to the transmitting unit 16, the receiving unit preferably also being assigned to the evaluation device 18 and is provided to provide further, remotely recorded vital parameters and / or environmental parameters of the evaluation device 18 in order to be able to evaluate the current vital information of the person to be medically monitored in even more detail. The sensor arrangement 10 according to the invention can therefore be expanded to include further miniaturized sensor systems connected via a wireless body-near radio network for the detection of further body signals, such as information relating to breathing and also neurological information, or environmental parameters such as air pollution, due to pollutants in the environment of exhaust gases or toxic emissions, radioactivity, when assessing the vital state of the person to be medically monitored.

Such further sensor systems can include, for example, the following, but are not limited to the same.

Vital parameter measuring method / sensor

Eyelid measurement (eye) electrodes or camera (road traffic, truck driver)

Respiratory rate and depth plethysmography

Cough (frequency and strength microphone ke)

Snoring (frequency and microphone strength)

Ambient parameters measuring method / sensor

Radioactivity Geiger-Müller counter, scintillation counter

Noise / noise level microphone

Pollutants / air pollution Chemical sensors According to the invention, the sensors for detecting environmental parameters can be arranged, for example, on the outside of the carrying strap of the sensor arrangement. To determine the body core temperature, for example, a temperature sensor for detecting the skin temperature on the inside of the carrying strap and a temperature sensor for detecting the ambient temperature on the outside of the ^" carrying strap ^{" can be} arranged. A difference value can then be determined from the two recorded temperatures, using which Experience and calibration values can be concluded on the core temperature.

With regard to the sensor arrangement 10 according to the invention, the requirements resulting from the sensor signals can be fulfilled for wireless communication, taking into account marginal parameters such as size and energy consumption, for example by means of the "Bluetooth" standard. In the future, technologies such as the "ZigBee" standard or "MDMA" standard will also be conceivable.

The Bluetooth standard is based on the use of the "2.4 GHz Industrial Scientific Medicine" band, or 2.4 GHz ISM band for short, and is based on the applicable radio regulations for Europe, Japan and North America. The ZigBee-

3 Data radio standard is based on the IEEE-802.15.4-based wireless network technology. The MDMA standard (MDMA = Multi dimensional multiple access) from Nanotron Technologies is based on the worldwide reserved, license-free ISM band at 2.4 GHz.

It is therefore clear that with the sensor arrangement 10 according to the invention for determining various vital parameters of persons to be medically monitored, an un- elaborate, cost-effective, reliable, qualified and needs-based care for people to be medically monitored, such as people in need of care, patients, rehabilitation patients, high-risk patients, but also people such as workers who are in highly hazardous environments can be carried out.

It is therefore clear that the sensor arrangement 10 according to the invention makes it possible to provide a central component for an intelligent mobile patient monitoring system (monitoring system) by means of a life condition sensor arrangement to be worn on the wrist, for example. For example, the multi-sensor approach of the sensor arrangement 10 according to the invention in a carrying band can be expanded in the future to include a plurality of miniaturized sensor systems for the detection of various body signals, such as breathing, neurological signals, etc., or environmental parameters, such as air pollution, pollutants in exhaust gases or toxic emissions to be connected to each other via a wireless body-based radio network, whereby the determined vital parameters, vital information or instantaneous vital states or also possible changes in the state to be expected can be immediately transmitted to a higher-level care unit.

Claims

claims

Sensor arrangement (10) for determining various vital parameters of a person to be monitored, the sensor arrangement (10) being arranged around an extremity of the person to be monitored, with the following features:

a lanyard (12) for enclosing the extremity;

a plurality of sensor elements (14a-c) for detecting various vital parameters of the person to be monitored, the sensor elements (14a-c) being arranged on the carrying strap (12) on a side of the carrying strap (12) facing the extremity; and

a transmitting unit (16) for wireless transmission of vital information based on the vital parameters detected.

Sensor arrangement according to Claim 1, further comprising an evaluation device (18) which is connected to the sensor elements (14a-c) in order to record the detected vital parameters and which is also assigned to the transmitting unit (16) in order to trigger a wireless transmission of the vital information, wherein the evaluation device (18) is provided to evaluate and process one or more of the detected vital parameters in order to obtain the current vital information of the person to be monitored.

Sensor arrangement according to claim 1 or 2, wherein the Vi ^¬ talinformation status information about a current Vital state of the person to be monitored, real-time measurement data in the form of the detected vital parameters and / or an alarm signal relating to the current or impending vital state of the person to be monitored.

4. Sensor arrangement according to claim 3, wherein the alarm signal indicates a current critical vital state or an impending critical vital state of the person to be monitored.

5. Sensor arrangement (10) according to one of the preceding claims, wherein the vital parameters have information about the pulse, the blood oxygen saturation, the body temperature, the ECG, the skin impedance, the blood sugar content, the blood pressure and / or muscle tension of the person to be medically monitored.

6. Sensor arrangement (10) according to one of claims 2 to 5, wherein the evaluation device (18) has a microcontroller, a memory and peripheral equipment.

7. Sensor arrangement (10) according to one of the preceding claims, further comprising a receiving unit in order to obtain additional vital parameters of the person to be medically monitored and / or environmental parameters.

8. The sensor arrangement according to claim 7, wherein the further vital parameters have information relating to breathing, coughing, snoring, blinking movements and / or neurological situations of the person to be medically monitored.

9. Sensor arrangement according to claim 7 or 8, wherein the ambient parameters have information about an ambient temperature, a pollutant load in the ambient atmosphere, gas and / or substance concentrations in the ambient atmosphere.

10. Sensor arrangement according to one of claims 2 to 9, wherein a time interval between the acquisition times of the vital parameters and / or a time interval between the transmission times of the vital information can be set by the evaluation device (18).

11. The sensor arrangement according to claim 10, wherein the time interval between the acquisition times of the vital parameters and / or the time interval between the transmission times of the vital information is adjustable as a function of the determined vital state.

12. Sensor arrangement (10) according to one of the preceding claims, wherein the sensor elements are miniaturized, non-invasive sensor elements.

13. The sensor arrangement (10) according to claim 12, wherein the sensor elements have a blood oxygen saturation element, a temperature sensor element, an EKG sensor element, a skin impedance sensor element, a pulse sensor element, a blood sugar content sensor element, a blood pressure and / or a muscle tension sensor element.

14. Sensor arrangement (10) according to any one of the preceding claims, wherein a display on the carrying band (12) for displaying one or more of the vital information.

15 sensor arrangement (10) according to claim 14, wherein the display comprises a plurality of light-emitting diodes.

16. The sensor arrangement (10) according to claim 14, wherein the display has a display field (20) for displaying the vital information.

17. Sensor arrangement (10) according to one of the preceding claims, wherein the sensor arrangement (10) can be supplied with energy by means of a battery.

18. Sensor arrangement (10) according to claim 1, wherein the evaluation device external to the sensor arrangement (10)

3 is arranged, and the detected vital parameters are transmitted wirelessly by the transmitting unit (16).

19. Sensor arrangement according to one of claims 1 to 18, further comprising at least one sensor for detecting environmental

3 exercise parameters.

20. The sensor arrangement according to claim 19, wherein the at least one sensor for detecting environmental parameters

- Is arranged on a side of the tra) facing away from the extremity.

21. Sensor arrangement according to claim 19 or 20, wherein the sensors for detecting environmental parameters Radioactivity sensor, a noise sensor and / or pollutant or air pollution sensors include.