JP2018102941A - System and device for biological information - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system and device which can improve a wearing feeling of a biological information obtaining part to a subject, which has high flexibility in wearing, and requires reduces amount of consumption power.SOLUTION: A multi-telemeter 200 includes: a wireless receiving part (short-distance wireless communication part 206) which wirelessly receives biological information (blood pressure value data) from at least one or more biological information obtaining part (blood pressure manometer 130); a wired receiving part (connectors 203, 204) the biological information through wire from at least one or more second group of biological information obtaining part (electrocardiogram electrode 110 and sensor probe 120); and a wireless transmitting part 208 which wirelessly transmits biological information received by the wireless receiving part (short-distance wireless communication part 206) and the wired receiving part (connectors 203, 204).SELECTED DRAWING: Figure 3

Description

The present invention relates to a medical telemetry system and a medical multitelemeter for acquiring biological information such as blood pressure, electrocardiogram, and SpO ₂ .

  A medical telemetry system (also called a telemeter system) can monitor biological information signals such as electrocardiograms remotely using radio waves, thus improving medical services and reducing the burden on healthcare professionals. It has become an indispensable tool.

  A medical telemetry system generally includes a sensor (biological information measurement device), a telemeter, and a telemeter receiver (see, for example, Patent Document 1). Actually, there are telemeters in which a sensor and a transmitter are integrated, and telemeters in which a sensor and a transmitter are separated. In this specification, a sensor and a transmitter integrated with each other and a sensor and a transmitter separated from each other are both referred to as a telemeter. The biological information measured by the sensor and wirelessly transmitted by the telemeter is received and demodulated by the telemeter receiver and displayed on a central monitor or the like.

Conventionally, there has been proposed a method in which a plurality of pieces of biological information are collectively transmitted by a telemeter. For example, Patent Document 2 discloses a vital telemeter that can measure blood pressure, an electrocardiogram, and SpO ₂ (hereinafter, a telemeter that wirelessly transmits a plurality of biological information collectively is referred to as a multi-telemeter). This device is a non-invasive automatic sphygmomanometer with a function of measuring electrocardiogram and SpO ₂ in addition to blood pressure. Specifically, an electrode for electrocardiogram measurement and a sensor probe for SpO ₂ measurement are connected to the automatic blood pressure monitor. Therefore, the automatic sphygmomanometer is equipped with not only a control measurement unit for the automatic sphygmomanometer but also a control / measurement unit for the electrocardiogram and SpO ₂ . Further, the automatic sphygmomanometer is provided with a wireless communication unit that wirelessly transmits the measured blood pressure, electrocardiogram, and SpO ₂ to the central monitor. With this configuration, blood pressure, electrocardiogram, and SpO ₂ can be measured together and wirelessly transmitted together.

JP 2013-070748 A JP 2005-168600 A

  By the way, the multi-telemeter disclosed in Patent Document 2 is an automatic blood pressure monitor equipped with a telemeter function. In the first place, since an automatic blood pressure monitor has a pump and a solenoid valve, it tends to be large and heavy, and mounting a telemeter further increases the size and weight. As a result, when the multitelemeter described in Patent Document 2 is mounted on the upper arm, it is assumed that a considerable burden is placed on the patient. Therefore, it is not suitable for use in situations where the patient has to move, such as a cardiopulmonary exercise test and rehabilitation.

  In addition, the multi-telemeter of Patent Document 2 must always be equipped with a large and heavy automatic blood pressure monitor when measuring biological information. For example, even when only an electrocardiogram is measured, it is necessary to wear an automatic blood pressure monitor. Even if the patient's condition changes and blood pressure measurement is no longer necessary, the automatic blood pressure monitor cannot be removed. There is a need. As described above, the multi-telemeter of Patent Document 2 has a low degree of freedom of wearing, and when it is desired to change the type of biological information acquired according to the patient's condition, that is, when the manner of wearing the telemeter is to be changed, A telemeter must be prepared and replaced.

  The present invention has been made in consideration of the above points. A plurality of types of biological information measurement devices are attached to a patient to acquire a plurality of types of biological information, and the acquired types of biological information are wirelessly transmitted. In some cases, a system and an apparatus that can improve the wearing feeling of the biological information acquisition unit to a patient, have a high degree of freedom of wearing, and consume less power.

One aspect of the system for biometric information of the present invention is:
A plurality of biological information acquisition units for acquiring different types of biological information,
A wireless receiver that wirelessly receives biological information from at least one first group of biological information acquisition units among the plurality of biological information acquisition units;
A wired receiving unit for receiving the biological information from at least one or more second group of biological information acquisition units excluding the first group among the plurality of biological information acquisition units by wire;
A wireless transmission unit for transmitting the biological information received by the wireless reception unit and the wired reception unit wirelessly for a longer distance than the wireless used in the wireless reception unit;
It comprises.

One aspect of the device for biometric information of the present invention is:
A device that inputs and wirelessly transmits biometric information from a plurality of biometric information acquisition units that acquire different types of biometric information,
A wireless receiver that wirelessly receives biological information from at least one first group of biological information acquisition units among the plurality of biological information acquisition units;
A wired receiving unit for receiving the biological information from at least one or more second group of biological information acquisition units excluding the first group among the plurality of biological information acquisition units by wire;
A wireless transmission unit for transmitting the biological information received by the wireless reception unit and the wired reception unit wirelessly for a longer distance than the wireless used in the wireless reception unit;
It comprises.

  According to the present invention, it is possible to realize a system and apparatus that can improve the feeling of wearing the biological information measuring apparatus on a patient, have a high degree of freedom of wearing, and consume less power.

Schematic which shows the whole structure of the medical telemetry system which concerns on embodiment Schematic showing the external configuration of the multi telemeter and blood pressure monitor Block diagram for explaining the configuration of the multi-telemeter

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic diagram showing an overall configuration of a medical telemetry system (hereinafter simply referred to as a telemetry system) according to an embodiment of the present invention.

The telemetry system 100 includes a multi-telemeter 200, electrocardiogram electrodes 110 (110-1, 110-2, 110-3), a sensor probe 120 for measuring SpO ₂ , a sphygmomanometer 130, and a central monitor 300. .

  The multi telemeter 200 is attached to the patient using a dedicated accessory such as a belt. Alternatively, it may be attached in a patient's pocket or the like. The electrocardiogram electrode 110 is attached to a predetermined position on the patient's body surface. The sensor probe 120 is attached to the patient's finger. The sphygmomanometer 130 is worn on the patient's upper arm or wrist. The central monitor 300 is disposed, for example, at a nurse station.

  As shown in FIG. 2, the multi telemeter 200 includes a display unit 201 and an operation unit 202. In addition, a cable 111 from the electrocardiogram electrode 110 and a cable 121 from the sensor probe 120 are connected to the multi telemeter 200 via connectors 112 and 122. That is, electrical signals obtained by the electrocardiogram electrode 110 and the sensor probe 120 are input to the multi telemeter 200 by wire. Specifically, an electrocardiogram waveform is input from the electrocardiogram electrode 110 and a photoelectric pulse wave is input from the sensor probe 120 by wire.

  On the other hand, the multi-telemeter 200 wirelessly receives blood pressure value data obtained by the sphygmomanometer 130 by performing short-range wireless communication with the sphygmomanometer 130. In the case of this embodiment, Bluetooth (registered trademark) is used as short-range wireless communication.

  The sphygmomanometer 130 is a non-invasive blood pressure (NIBP) sphygmomanometer that measures blood pressure by wrapping a cuff 131 around the upper arm. An apparatus main body 132 is attached to the cuff 131. The configuration of the sphygmomanometer 130 may be a conventional general sphygmomanometer configuration except that the sphygmomanometer 130 includes a short-range wireless communication unit 133 (FIG. 3) that performs short-range wireless communication with the multi-telemeter 200. That is, the apparatus main body 132 includes a pump and a valve for supplying / exhausting air to / from the air bag in the cuff 131, a drive circuit for driving them, a pressure sensor for detecting the internal pressure of the air bag, a display unit, and a memory An operation unit, a power source and the like are provided. Furthermore, the apparatus main body 132 is provided with a CPU (Central Processing Unit) that controls the operation of the entire sphygmomanometer and obtains blood pressure value data based on the output of the pressure sensor. In addition, in the case of the present embodiment, the apparatus main body 132 is provided with a short-range wireless communication unit 133 (FIG. 3), and wirelessly transmits the measured blood pressure data to the multi telemeter 200 by the Bluetooth method.

  FIG. 3 is a block diagram showing a configuration of the multi telemeter 200.

The multi telemeter 200 has connectors 203 and 204, and the connector 112 of the electrocardiogram electrode 110 is connected to the connector 203 and the connector 122 of the sensor probe 120 for measuring SpO ₂ is connected to the connector 204.

The measurement processing unit 205 obtains an electrocardiogram (ECG1, ECG2) and SpO ₂ by executing a predetermined measurement processing program, and outputs them to the display unit 201 and the transmission processing unit 207. Since the measurement method of the electrocardiogram and SpO ₂ by the measurement processing unit 205 can be applied to well known, the detailed description thereof will be omitted here.

  On the other hand, the short-range wireless communication unit 206 receives blood pressure value data from the short-range wireless communication unit 133 provided in the device main body 132 of the sphygmomanometer 130, and outputs it to the display unit 201 and the transmission processing unit 207. The establishment of wireless communication between the short-range wireless communication unit 206 and the short-range wireless communication unit 133 may be performed by executing pairing when the operation unit 202 is operated, for example.

On the display unit 201, an electrocardiogram, SpO ₂ and blood pressure value data are simply displayed. The medical worker confirms whether or not these pieces of biological information are displayed on the display unit 201, thereby confirming whether or not the electrocardiogram electrode 110 and the sensor probe 120 are correctly attached, and connectors 112, 122, 203, and 204. Can be confirmed whether or not the blood pressure value data can be correctly received via the short-range wireless communication units 133 and 206.

The transmission processing unit 207 arranges the electrocardiogram information, SpO ₂ information, and blood pressure value data in a frame suitable for wireless transmission. Since both the electrocardiogram information and the SpO ₂ information are information (waveforms) that are continuous in the time direction, a frame configuration that allows continuous wireless transmission is used. Actually, the ECG information and the SpO ₂ information are multiplexed in such a manner that they can be separated on the receiving side. On the other hand, blood pressure value data is sent intermittently at intervals of, for example, 15 minutes, 30 minutes, or 1 hour.

  The wireless transmission unit 208 performs wireless transmission in accordance with the “operational rules for low-power medical telemeters” determined by the Japan Electronics and Information Technology Industries Association (JEITA). Specifically, according to this rule, six bands 1 to 6 are allocated in the range of 420 to 450 MHz, and 40, 80, or 120 channels are allocated to each band 1 to 6. . Incidentally, the interval of each channel is 12.5 kHz.

  A specific channel is assigned in advance to the multi-telemeter 200, and the wireless transmission unit 208 wirelessly transmits biometric information using the assigned channel. The biological information wirelessly transmitted from the wireless transmission unit 208 of the multi-telemeter 200 is received by a wireless reception unit (also referred to as a telemeter receiver) 301 of the central monitor 300. The received biological information is demodulated and displayed on the display of the central monitor 300. FIG. 3 shows a case where the wireless reception unit (telemeter receiver) 301 is provided in the central monitor 300. For example, a signal from the wireless transmission unit 208 using an antenna system disposed on the back of a ceiling in a hospital. And the received signal may be sent to the central monitor 300 by wire.

  Here, which channel is assigned to which telemeter is registered in the central monitor 300. In the central monitor 300, which channel is assigned to which patient is registered. Therefore, the central monitor 300 can display and record the biological information sent from the multi telemeter 200 in association with the patient.

  The telemetry system 100 of the present embodiment has the following features.

  (1) The multi-telemeter 200 is used as a relay between the biological information acquisition unit (electrocardiogram electrode 110, sensor probe 120, sphygmomanometer 130) and the central monitor 300.

  (2) Communication between the multi-telemeter 200 and the biological information measuring device is performed by specific low-power wireless communication other than the 400 MHz band or by wire, and communication between the multi-telemeter 200 and the central monitor 300 is determined by the standard. The specified low power wireless communication using the 400 MHz band.

(3) Of the communications between the multi-telemeter 200 and the biological information acquisition unit, the biological information acquisition unit (in the embodiment, the sphygmomanometer 130) from which intermittent information is acquired is connected wirelessly, The living body information acquisition unit (in the embodiment, the electrocardiogram electrode 110 and the sensor probe 120) for measuring continuous information is connected by wire. Alternatively, the measurement value input to the multi telemeter 200 is performed by short-range wireless, and the measurement waveform input to the multi telemeter 200 is performed by wire. In addition to the sphygmomanometer 130 or instead of the sphygmomanometer 130, a pulse oximeter, a thermometer, and / or a pedometer may be used as the biological information acquisition unit that acquires intermittent information. The pulse oximeter here measures the value of SpO ₂ (that is, an intermittent value) while the sensor probe 120 for measuring SpO ₂ outputs a photoelectric pulse wave (that is, a continuous waveform). Output. The pulse oximeter, the thermometer, and the pedometer are provided with a short-range wireless communication unit, and the measurement value data is transmitted to the multi telemeter 200. In addition to the ECG electrode 110 and the sensor probe 120, or as a biological information acquisition unit for acquiring continuous information, a respiratory flow meter (flow sensor) is used instead of the ECG electrode 110 and the sensor probe 120. Also good. Then, the respiratory flow signal obtained by the respiratory flow meter (flow sensor) is transmitted to the multi telemeter 200 by wire.

  As described above, according to the present embodiment, the multi-telemeter 200 wirelessly receives biological information (blood pressure value data) from at least one biological information acquisition unit (blood pressure monitor 130). Unit (short-range wireless communication unit 206) and a wired receiver (connector 203) that receives biological information from at least one or more second group of biological information acquisition units (electrocardiogram electrode 110 and sensor probe 120) by wire. 204), and a wireless transmission unit 208 that wirelessly transmits biological information received by the wireless reception unit (short-range wireless communication unit 206) and the wired reception unit (connectors 203 and 204).

Accordingly, there is an advantage that, for example, only blood pressure, only an electrocardiogram, and only SpO ₂ can be measured and transmitted to the central monitor 300 as compared with a configuration in which a telemeter is integrated with a sphygmomanometer as in Patent Document 2. In other words, it is only necessary to install the minimum necessary biometric information acquisition unit other than the multi-telemeter 200. As a result, it is possible to improve the wearing feeling because unnecessary wearing is not required, and the degree of freedom of wearing is increased. .

In addition, intermittent data (measured values) obtained by a sphygmomanometer, a pulse oximeter, a thermometer, and a pedometer are input to the multi-telemeter 200 by short-range radio, while the electrocardiogram electrode 110 and a sensor probe for measuring SpO _2. Since the continuous signal (waveform) obtained by 120 and the respiratory flow meter (flow sensor) is input to the multi telemeter 200 by wire, the power required for wireless communication can be efficiently reduced. That is, instead of inputting everything into the multi-telemeter 200 wirelessly, only intermittent signal input was made wireless. As a result, the battery operating time of the multi telemeter 200 can be extended.

  In the present embodiment, the multi-telemeter 200 can establish wireless communication only by pairing with the sphygmomanometer 130 and send blood pressure value data to the central monitor 300. That is, blood pressure value data can be sent to the central monitor 300 as the patient's data simply by wearing the sphygmomanometer 130. Therefore, it is only necessary to wear the biological information measuring device without performing work such as linking to the patient ID, so that the burden on the medical staff is reduced.

  In the above-described embodiment, the case where the multi telemeter 200 is attached to the patient has been described. However, the processing performed by the multi telemeter 200 may be performed by the bedside monitor. That is, the bedside monitor may have the function of the multi-telemeter 200 described above.

  In the above-described embodiment, the case where the short-range wireless communication unit 133 and the short-range wireless communication unit 206 are connected by Bluetooth wireless is described. However, the present invention is not limited to this, and the specific low-power wireless communication is used. And connect. In short, the short-range wireless communication units 133 and 206 may perform specific low-power radio having a frequency band different from that of the wireless transmission unit 208 and the wireless reception unit 301.

  The above-described embodiments are merely examples of implementation in carrying out the present invention, and the technical scope of the present invention should not be construed as being limited thereto. That is, the present invention can be implemented in various forms without departing from the gist or the main features thereof.

  The present invention can be applied to medical telemetry systems.

100 Medical Telemetry System 110 (110-1, 110-2, 110-3) ECG electrodes 111 and 121 cable 112,122,203,204 connector 120 SpO ₂ measurement of sensor probe 130 sphygmomanometer 131 cuff 132 apparatus main body 133 , 206 Short-range wireless communication unit 200 Multitelemeter 201 Display unit 202 Operation unit 205 Measurement processing unit 207 Transmission processing unit 208 Wireless transmission unit 300 Central monitor 301 Wireless reception unit

Claims (9)

A plurality of biological information acquisition units for acquiring different types of biological information,
A wireless receiver that wirelessly receives biological information from at least one first group of biological information acquisition units among the plurality of biological information acquisition units;
A wired receiving unit for receiving the biological information from at least one or more second group of biological information acquisition units excluding the first group among the plurality of biological information acquisition units by wire;
A wireless transmission unit for transmitting the biological information received by the wireless reception unit and the wired reception unit wirelessly for a longer distance than the wireless used in the wireless reception unit;
A system comprising: The biological information of the first group is intermittent information than the biological information of the second group.
The system of claim 1. The biological information acquisition unit of the first group includes a sphygmomanometer, a pulse oximeter, a thermometer, and / or a pedometer.
The system according to claim 1 or claim 2. The biological information acquired by the biological information acquisition unit of the second group includes an electrocardiogram, a photoelectric pulse wave, and / or a respiratory flow rate.
The system according to any one of claims 1 to 3. The wireless reception unit, the wired reception unit, and the wireless transmission unit are provided in one device.
The system according to any one of claims 1 to 4. A device that inputs and wirelessly transmits biometric information from a plurality of biometric information acquisition units that acquire different types of biometric information,
A wireless receiver that wirelessly receives biological information from at least one first group of biological information acquisition units among the plurality of biological information acquisition units;
A wired receiving unit for receiving the biological information from at least one or more second group of biological information acquisition units excluding the first group among the plurality of biological information acquisition units by wire;
A wireless transmission unit for transmitting the biological information received by the wireless reception unit and the wired reception unit wirelessly for a longer distance than the wireless used in the wireless reception unit;
A device comprising: The biological information of the first group is intermittent information than the biological information of the second group.
The apparatus according to claim 6. The biological information acquisition unit of the first group includes a sphygmomanometer, a pulse oximeter, a thermometer, and / or a pedometer.
The device according to claim 6 or 7. The biological information acquired by the biological information acquisition unit of the second group includes an electrocardiogram, a photoelectric pulse wave, or a respiratory flow rate.
The device according to any one of claims 6 to 8.

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