JP2927262B2 - Medical telemeter transmitting device and medical telemeter device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical telemeter device, and more particularly, to an analog waveform signal such as an electrocardiogram, a respiration, a blood pressure wave, etc. detected from a living body, and biological measurement data input to a medical telemeter from an external biological signal measuring device. The present invention relates to a medical telemeter device including a medical telemeter transmitting device that modulates a main carrier and wirelessly transmits a signal obtained by combining the above, and a receiving device that is a patient monitoring device that receives, monitors, and records radio waves from the transmitting device.

[0002]

2. Description of the Related Art Conventionally, this type of medical telemeter transmitting apparatus is configured as shown in FIG. 7, and the receiving apparatus is configured as shown in FIG.

In FIG. 7, a medical telemeter 10 is a medical measuring terminal that is directly attached to a living body (patient).
The biological data generator 20 is an external measurement terminal for measuring and outputting data that cannot be measured by the medical telemeter 10,
It is connected to the medical telemeter 10 by an optical fiber. The reason for connecting the optical fiber to the medical telemeter 10 is for safety of the living body. This is because, if the connection is made with an electric cable, there is a risk of electric leakage and a danger to a living body.

A medical telemeter 10 includes an analog biometric signal S1 (for example, an electrocardiographic signal) directly obtained from an electrode or the like attached to a living body and an external biometric data generator 20.
One or both of the biometric data S2 from the first and second antennas are modulated and output as a radio wave W through the antenna 12.

[0007] The medical telemeter transmitter shown in FIG. 7 will be described in further detail. The biological measurement data generator 20 comprises a biological data measuring device 21A and a biological data converter 21B. The external biological data measuring device 21A is, for example, a blood pressure measuring device, an arterial blood oxygen saturation measuring device, a body temperature measuring device, and the like.
Generate measured value data indicating a numerical value of the measured blood pressure value, arterial oxygen saturation, or body temperature. This measured value data is converted into serial data by an interface circuit (I / F
Circuit 22).

The interface circuit 22 temporarily converts the input measured value data into a parallel signal and adds identification data for indicating the type of the measured value data (blood pressure value, arterial blood oxygen saturation, or body temperature). Do. This identification data is used for extracting and identifying the measurement value data in the receiving device of FIG. Parallel / Serial (P / S)
The conversion circuit 23 converts the parallel measurement value data from the interface circuit 22 into serial data, and outputs the serial data to the subcarrier modulation unit 24. The subcarrier modulation unit 24
After modulating the subcarrier with the measurement value data including the identification data, the electrical / optical signal conversion unit 25 outputs the optical signal as the biological measurement data S2 to the medical telemeter 10 via the optical fiber cable. For subcarrier modulation, for example, binary FSK modulation is used. If the binary FSK modulation is used, different subcarriers are assigned to the optical signal code “1” and “0”, and the subcarrier is apparently continuously illuminated. Light (not shown) does not flicker into the patient's eyes.

In the medical telemeter 10, the analog biological measurement signal S 1 is amplified by the input amplifier 3, and is subjected to subcarrier modulation in the subcarrier modulation section 16 using a subcarrier having a frequency different from that of the subcarrier modulation section 24. That is, the signal of the subcarrier frequency is modulated by the analog biometric signal S1. On the other hand, biometric data S2
Is converted into an electric signal by the photoelectric conversion unit 5,
The electric signal is superimposed on the output of the subcarrier modulator 16 and supplied to the transmitter 11. The transmitter 11 modulates the main carrier with the superimposed signal and outputs the result to the antenna 12. As a result, a radio wave W is generated. The main carrier differs for each patient.

The radio wave W from the antenna 12 is received by the receiving device shown in FIG. 8, the receiver 1 for the transmitter 11 of the medical telemeter transmitter of FIG.
7A, 17B, 17C and 17D are provided. One of these receivers demodulates radio waves from the medical telemeter transmitter of one patient.

Assume that the radio wave W is demodulated by the receiver 17A. The output of the receiver 17A is output to two subcarrier demodulators 18A and 19A having different frequencies.
The subcarrier demodulation unit 18A is a demodulation circuit for the subcarrier modulation unit 16 in FIG. 7, and discriminates the analog biometric signal S1 by demodulation. On the other hand, the subcarrier demodulator 19
A is for the subcarrier modulation unit 24 in FIG.
Discriminate measurement data.

The discriminated measured value data is supplied to a data extracting unit 20A, where necessary measured value data is extracted from the data. For this extraction, the identification data inserted by the interface circuit 22 of FIG. 7 is used, and finally, the measured value data of the blood pressure value, the arterial oxygen saturation, or the body temperature is output.

The analog biological measurement signal demodulated and extracted as described above and the measured value data are monitored (not shown).
Is output and displayed.

In FIG. 8, another subcarrier demodulation unit 1
8B, 18C, 18D, and a subcarrier demodulation unit 19B,
19C, 19D, and data extraction units 20B, 20C, 20
D is the same as the subcarrier demodulation unit 18A, the subcarrier demodulation unit 19A, and the data extraction unit 20A.

[0013]

A first problem is that it is difficult to reduce the size and cost of a conventional medical telemeter device when a plurality of patients are monitored by the receiving device. It is in.

The reason is that the receiving apparatus requires two subcarrier demodulators and a data extractor for discriminating the analog biometric signal and the biometric data for each patient. Also, the two subcarrier demodulators are:
Since demodulation is performed by an analog method, integration is difficult and the size is increased.

It is necessary to recommend digitization in the medical telemeter transmitter on the patient side. Conventionally, however, an analog biometric signal is subcarrier-modulated as it is, and is superimposed on the subcarrier-modulated biometric data S2 in an analog manner. It was transmitted wirelessly and was not a digitized configuration.

An object of the present invention is to provide a medical telemeter transmitting device and a medical telemeter device which do not require a demodulating circuit for discriminating analog signals in a receiving device.

Another object of the present invention is to provide a medical telemeter transmitting device and a medical telemeter device which can use one digital demodulator for a receiving device.

Another object of the present invention is to provide a medical telemeter transmitting apparatus and a medical telemeter apparatus which can be easily digitized.

[0019]

SUMMARY OF THE INVENTION A medical telemeter transmitting apparatus according to the present invention converts data from an external medical measuring instrument into a binary F value.
A data output device that modulates by SK modulation and outputs the measurement value data to a signal line as a measurement value data, a medical telemeter that transmits measurement value data received from the signal line and an analog biological measurement signal obtained by measuring a living body as a wireless signal, and Having.

The medical telemeter includes an FSK demodulator for demodulating binary FSK modulated measurement value data from a signal line, and analyzes the measurement value data obtained by FSK demodulation to extract a transmission measurement value required for transmission. A / D (A / D) converting means for converting an analog biometric signal into a digital signal, and converting the A / D-converted biometric signal and a transmission measurement value from the data extracting means into a predetermined value. Means for formatting to a data format, means for digitally modulating the formatted data,
Wireless transmission means for transmitting the digitally modulated signal as a wireless signal.

The medical telemeter transmitting apparatus according to the present invention comprises:
Data from an external medical measuring instrument, for example, data of a measurement value of a living body is modulated by binary FSK modulation, demodulated, further analyzed by data extracting means, and the analyzed transmission measurement value is A / D converted. Since the data format is used together with the biological measurement signal, it can be digitized and integrated.
Reduce size and price.

Further, after the A / D-converted biometric signal and the transmission measurement value from the data extracting means are formatted, they are digitally modulated and transmitted by radio. Only two subcarrier demodulators as in the related art are not required on the receiving device side. Further, there is an advantage that the processing circuit after the wireless reception can be entirely constituted by a digital circuit.

In the medical telemeter transmitting apparatus according to the present invention, instead of transmitting the binary FSK-modulated measurement value data to a signal line between the data output apparatus and the medical telemeter apparatus, a baseband signal that is not FSK-modulated is transmitted. Even if data is transmitted, the effects of miniaturization and digitization can be obtained.

However, if the binary FSK modulation is used, when the measured value data is transmitted to the medical telemeter as an optical signal, the sign of the measured value data is apparently illuminated with either “1” or “0”. There is an advantage that there is no flicker and there is no concern about flicker.

Specifically, in the present invention, a data output device that modulates measured value data by binary FSK modulation and outputs the result to a signal line adds identification data representing the type of the measured value to the measured value data of an external medical measuring instrument. And a modulating means for modulating the measurement value data to which the identification data has been added by the binary FSK modulation and outputting the modulated data to the signal line. In this case, the data extracting means of the medical telemeter extracts the transmission measurement value for each type based on the identification data.

Further, a medical telemeter device according to the present invention has the above-described medical telemeter transmitting device and receiving device. The receiving device has wireless transmission means for transmitting the digitally modulated signal as a wireless signal. The receiving device is
It has a receiving means for receiving a radio signal and a digital demodulating means.

[0027]

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

FIG. 1 is a block diagram showing an embodiment of a medical telemeter transmitting apparatus according to the present invention, and FIG. 2 is a block diagram showing a receiving apparatus.

In FIG. 1, the biological data generator 30 and the medical telemeter 100 are connected by an optical fiber cable. The reason for using the optical fiber is for the safety of the living body as in the related art. The medical telemeter 100 is a medical monitoring terminal directly fixed to a living body (patient), and the biological data generator 30 is an external measurement terminal for measuring data that cannot be measured by the medical telemeter 100 and outputting the data to the medical telemeter 100. . In addition, the medical telemeter 100
Has a power supply inside.

The medical telemeter 100 includes an analog biological measurement signal S1 directly obtained from an electrode or the like attached to a living body.
(For example, an electrocardiographic signal) and / or the biological measurement data S2 from the biological measurement data generator 30 are received and output as radio waves W through the antenna 12.

The medical telemeter transmitting device shown in FIG. 1 will be described in more detail. The biological measurement data generator 30 includes a biological data measuring device 31 and a biological data output device 32.
The external biological data measuring device 31 is, for example, a blood pressure measuring device,
It is an arterial blood oxygen saturation measuring device and a body temperature measuring device, and generates a measured numerical value indicating a numerical value of the measured blood pressure value, arterial blood oxygen saturation, or body temperature. The measured numerical value is supplied as serial data to the interface circuit (I / F circuit) 32 of the biological data output device 36.

The interface circuit 32 receives the input measured value by a serial data interface procedure, converts the received measured value into a parallel signal, and indicates the type of the measured value (blood pressure value, arterial oxygen saturation, or body temperature). The identification data is added by processing of a CPU (not shown). For example, when a blood pressure value is received, identification data for identifying a blood pressure value is added to the head of each measured value when identification data for identifying a blood temperature is received. This identification data is used later for extracting and identifying the measured value. As described above, the interface circuit 32 is controlled by the CPU so that the biometric data measuring device 31 adds appropriate identification data.

Parallel / serial (P / S) conversion circuit 3
3 converts the parallel data from the interface circuit 32 into serial data and outputs the serial data to the FSK modulation unit 34 as measured value data. At this time, the speed of the serial data is 150 bps.

The FSK modulating section 34 modulates the measured value data (measured numerical value data including identification data) using binary FSK. This modulation is a method of modulating by assigning a repetition signal of 1200 Hz when the sign of the measurement value data is “1” and 1200 Hz when the sign of the measurement value data is “0”.

The measured value data (including the identification data) subjected to the binary FSK modulation is output to the medical telemeter 100 via the optical fiber cable as the biological measurement data S2 of the optical signal by the electro-optical signal converter 25. The optical signal is
Appears to shine continuously and does not flicker.

The optical signal input to the medical telemeter 100 is converted into an electrical signal by the optical-electrical
The demodulation unit 6 demodulates the binary FSK modulated signal into serial data of measured value data. The data extraction unit 7 extracts the measurement values in the measurement value data, the data conversion unit 8 extracts only the measurement values necessary for transmission based on the identification data in the measurement value data, and the transmission data format creation unit 9 Convert to the data format handled by. The data extracting section 7 and the data converting section 8 constitute a data extracting section of the present invention.

In the medical telemeter 100, the analog living body measurement signal S 1 is amplified by the input amplifier 3, converted to a digital signal by the analog / digital (A / D) converter 4, and output to the transmission data format creation unit 9. .

The transmission data format generator 9 incorporates the measured value data from the data converter 8 and the digital signal from the A / D converter 4 into one data format and outputs the data to the digital modulator 10. For example, it is output after being framed.

The transmitter 11 modulates the main carrier with a digitally modulated signal and outputs the modulated signal as an electric wave W from the antenna 12. The main carrier has a different frequency for each patient.

On the other hand, the receiving apparatus of FIG. 2 has a plurality of receivers 14A, 14B, 14C, 14D corresponding to each patient, and digital demodulators 15A, 15B, 15C, 15D. Each receiver is for the transmitter 11 of FIG. 1 and detects only radio waves from a particular patient. Each digital demodulation unit is for the digital modulation unit 10 of FIG. Therefore, the same signal as the output signal of the transmission data format creation unit 9 is obtained from each digital demodulation unit and output to a monitor (not shown). The monitor separates the digital signal corresponding to the biological measurement signal S1 of FIG. 1 and the measurement value data from the data formatted data, and displays each of them.

In the medical telemeter transmitting apparatus shown in FIG.
The K demodulation unit 6, the data extraction unit 7, the data conversion unit 8, and the transmission data format creation unit 9 are integrated into one integrated circuit.
These all deal with digital signals.

Next, the configuration and operation of each unit in FIG. 1 will be described in detail. The biological data measuring device 31 generates a measured numerical value indicating a numerical value of the blood pressure value, the arterial blood oxygen saturation, or the body temperature, and outputs the measured numerical value by a serial data transmission procedure by RS-232C. The measured values are represented by ASCII codes, and the measured values measured at regular time intervals are output to the interface circuit 32.

The interface circuit 32 is an RS-232
After receiving the serial data of the measured numerical value in the serial data transmission procedure by C and converting it into parallel data, the CPU adds identification data to the head position of the measured numerical value. In the present embodiment, the identification data is the same as the measured numerical value in the ASCI
I-code character data is used. Specifically, the three-character code “SP =” is used for the measured value data of the arterial oxygen saturation, “S =” is used for the blood pressure (high),
A two-character code “D =” is added to blood pressure (low) as identification data. A in FIG. 3 is a measurement value data string (parallel data in the interface circuit 32) in which three-character code identification data “SP =” is added to measurement value data “125” of arterial blood oxygen saturation. As shown in FIG. 3A, the ASCII code is represented by 8 bits (1 byte), and a start bit “0” and a stop bit “11” are added to each byte. FIG.
B in the figure indicates an ASCII code data string of the measured numerical values excluding the identification data.

The measured value data (measured numerical values including identification data) from the interface circuit 32 is transmitted to the P / S conversion circuit 3.
After being converted into serial data (A in FIG. 3) by the FSK 3, it is modulated by the FSK modulator 34, transmitted to the medical telemeter 100 as an optical signal, and demodulated by the FSK demodulator 6.

FIG. 4 shows the FSK modulator 34 and the FSK demodulator 6
FIG. 4 is a waveform diagram showing input / output waveforms of FIG. A is the FSK modulator 3
4 is the measured value data subjected to binary FSK modulation.
Is assigned to a clock signal having a repetition frequency of 1200 Hz, and reference numeral “0” is assigned to a clock signal having a repetition frequency of 600 Hz. FIG. 4 particularly shows portions where the sign of the measurement value data is “0”, “1”, and “0”.

The FSK demodulation unit 6 operates a counter that outputs an H level at a time approximately halfway between the two frequencies of the binary FSK (800 Hz) from the rise of the serial measured value data (A in FIG. 4). The serial data (C in FIG. 4) of the current signal is reproduced by sampling the data of A at the falling edge of the output of the counter (B in FIG. 4). Further, a synchronous clock (D in FIG. 4) of the serial data C is generated based on the change point of the data of C, and the serial data C is sampled at the falling edge of the synchronous clock D, whereby the measurement of A in FIG. The same serial data E as the value data is generated. The serial data E and the synchronous clock D, which are measured value data, are output to the data extraction unit 7.

FIG. 5 is a detailed block diagram of the data extracting unit 7 and the data converting unit 8. The data extraction unit 7 calculates a measured value (ASCI) from the synchronous clock D and the serial data E in FIG.
I code), and the identification data of the added ASCII code is detected in the interface circuit 32 of FIG.

First, the serial data E is converted by the 11-bit shift register 70 into an 11-bit parallel signal. The 8-bit parallel data output to the 8-bit latch 73 is 8-bit data excluding the first 1 bit and the last 2 bits of the 11-bit parallel data. Start / stop bit detection gate 7
2 is input from the 11-bit shift register 70, the first one bit and the last two bits of the 11-bit parallel data, and the output of the data character length counter 71 for counting the character length of the identification code. If the data supplied from the 11-bit shift register 70 to the start / stop bit detection gate 72 is "0"
If it is “11”, that is, the start bit “0” and the stop bit “11” in FIG.
, A measurement numerical value or an identification code is input in parallel, and at the same time, the start / stop bit detection gate 72 outputs “1”. 8-bit latch 73 to 7
8 latches parallel data only when the start / stop bit detection gate 72 outputs "1".

Therefore, the 8-bit latches 73, 74,
From 75, A measured by the biological data measuring device 31 of FIG.
The measured value of the SCII code, for example, “12” in FIG.
3 "is output, and an identification code, for example, the character code" S = "in FIG. 3A is output from the 8-bit latches 76, 77, 78.

ASCII code fixed character detector 7
9 is the characters “SP =”, “S =”, “D” of the identification code.
= ”Are detected as identification codes for arterial blood oxygen saturation, blood pressure (high), and blood pressure (low), respectively, and a detection signal is output.

The data conversion unit 8 receives A from the data extraction unit 7
The measured numerical value of the SCCII code is converted into 12-bit binary data, and the measured value data corresponding to the identification data among the converted binary data is output. The conversion of the binary data is executed by the numerical value binary conversion unit 80. When the ASCII code fixed character detection unit 79 detects the character “SP =” of the identification code, the binary measurement value of the arterial oxygen saturation is stored in the 12-bit latch 83.
When the character "S =" is detected, the binary measured value of the blood pressure (high) is latched in the 12-bit latch 82, and when the character "D =" is detected, the binary measured value of the blood pressure (low) is latched in the 12-bit latch 81, respectively. Is output. Although the measured values of the body temperature are not extracted in FIG. 5, a function of detecting the measured values is also provided. “T =” is used as the identification code of the body temperature.

The reason why the data converter 8 converts the measured numerical value from ASCII code to binary data is that the transmission data format generator 9 handles binary data as data to be formatted.

The transmission data format creating section 9 converts the binary measurement values such as arterial blood oxygen saturation, blood pressure (high), blood pressure (low), and body temperature and the binary data of the biological measurement signal from the A / D converter 4 into a frame format. And outputs it to the digital modulation circuit 10. After digital modulation, the transmitter 11
Is transmitted from the antenna 12 as radio waves.

As described above, the medical telemeter transmitting apparatus shown in FIG. 1 forms measurement value data to which identification data is added from the measurement values from the biological data measuring device 31, and modulates the data by the binary FSK modulation with the FSK modulator 34. After the medical telemeter 1
The data is demodulated by the FSK demodulator 6 of 00 and further analyzed by data extracting means (the data extracting unit 7 and the data converting unit 8).
Since the analyzed transmission measurement value (binary measurement value) is converted into a data format together with the A / D-converted biological measurement signal, digitization and integration become possible, and the size and cost are reduced.

Further, after the A / D-converted biometric signal and the transmission measurement value from the data extraction means are formatted and digitally modulated and transmitted wirelessly, the receiving apparatus receives the radio signal and then performs digital demodulation. Only two subcarrier demodulators as in the related art are not required on the receiving device side. Further, there is an advantage that the processing circuit after the wireless reception can be entirely constituted by a digital circuit.

FIG. 6 is a block diagram showing a medical telemeter transmitting apparatus according to a second embodiment of the present invention. In the figure, the difference from the first embodiment of FIG. 1 is that the multi-channel medical telemeter 200 inputs three types of analog biometric signals and amplifies them with the input amplifier 3 respectively.
The A / D converter 40 converts the digital signal into a digital signal, and the multiplexer 40 performs time division multiplexing to generate time-series biometric data. Other configurations are the same as those in FIG. In this manner, a plurality of types of analog biometric signals may be wirelessly transmitted.

[0057]

As described above, the medical telemeter transmitting apparatus according to the present invention modulates the measured value data from the external medical measuring instrument by binary FSK modulation, demodulates the data, and further analyzes the data by the data extracting means. Since the analyzed transmission measurement value is converted into a data format together with the A / D-converted biological measurement signal, it can be digitized and integrated, and can be reduced in size and cost.

Further, after the A / D-converted biometric signal and the transmission measurement value from the data extraction means are formatted, they are digitally modulated and transmitted by radio. Only two subcarrier demodulators as in the related art are not required on the receiving device side. Further, there is an advantage that the processing circuit after the wireless reception can be entirely constituted by a digital circuit.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of a medical telemeter transmitting apparatus according to the present invention.

FIG. 2 is a block diagram showing a receiving device of the medical telemeter transmitting device of FIG. 1;

FIG. 3 is a diagram showing measured value data generated by a biological data generator of the medical telemeter transmitting device of FIG. 1;

FIG. 4 is a waveform diagram showing an operation of an FSK modulation unit and an FSK demodulation unit of the medical telemeter transmitting device of FIG.

FIG. 5 is a circuit diagram showing details of a data extraction unit and a data conversion unit of the medical telemeter transmitting device of FIG. 1;

FIG. 6 is a perspective view illustrating a medical telemeter transmitting apparatus according to a second embodiment of the present invention.

FIG. 7 is a block diagram showing a conventional medical telemeter transmission device.

FIG. 8 is a block diagram showing a receiving device of the medical telemeter transmitting device of FIG. 1;

[Explanation of symbols]

 Reference Signs List 3 input amplifier 4 A / D converter 5 photoelectric signal conversion unit 6 FSK demodulation unit 7 data extraction unit 8 data conversion unit 9 transmission data format creation unit 10 digital modulation unit 11 transmitter 30 biological data generator 31 biological data measuring device Reference Signs List 32 interface circuit 33 P / S conversion circuit 34 FSK modulation unit 35 electro-optical signal conversion unit 36 biological data output device 100 medical telemeter

Claims (5)

(57) [Claims] 1. A method for transmitting data measured by an external medical measuring instrument to a medical telemeter using a signal line, and transmitting the analog biometric signal obtained by measuring the living body by the medical telemeter and the data as a wireless signal. A data output device that modulates the data by binary FSK modulation and then outputs the data as measurement value data to the signal line; and a measurement value data received from the signal line and the analog biological measurement signal. And a medical telemeter that transmits by radio signal, wherein the medical telemeter demodulates the measurement value data received from the signal line.
An SK demodulation unit, data extraction means for analyzing measurement value data obtained by FSK demodulation and extracting transmission measurement values required for transmission, and an analog / digital (A / D) for converting the analog biometric signal into a digital signal. ) Conversion means, A /
Means for formatting the D-converted biometric signal and the transmission measurement value from the data extraction means into a predetermined data format, means for digitally modulating the formatted data, and transmitting the digitally modulated signal to a radio signal And a wireless transmission means for transmitting as a medical telemeter. 2. The medical telemeter transmitting device according to claim 1, wherein the signal line is an optical fiber, and the measurement value data is transmitted as an optical signal. 3. A transmitting apparatus for transmitting data measured by an external medical measuring instrument to a medical telemeter using a signal line, and transmitting the analog biometric signal obtained by measuring the living body and the data by the medical telemeter as a wireless signal. A data output device that adds identification data to the data and outputs the data as measurement value data to the signal line; and a medical device that transmits a measurement value data received from the signal line and the analog biological measurement signal as a wireless signal. A data extractor for analyzing the measured value data received from the signal line and extracting a transmission measured value required for transmission based on the identification data; and Analog / digital (A / D) conversion means for converting a signal into a digital signal; an A / D-converted biometric signal; Medical telemeter including means for formatting transmission measurements from the stage into a predetermined data format, means for digitally modulating the formatted data, and wireless transmission means for transmitting the digitally modulated signal as a wireless signal Transmission device. 4. The data output device according to claim 1, further comprising: an adding unit that adds identification data indicating a type of the measurement value to the measurement value data of the external medical measuring device, and converts the measurement value data to which the identification data is added into binary FSK. Modulating means for modulating by modulation and outputting to the signal line, wherein the data extracting means of the medical telemeter extracts a transmission measurement value for each type based on the identification data. Item 1
The medical telemeter transmitting device as described in the above. 5. The data of the external medical measuring instrument is represented by a binary FS
A data output device that outputs the measured value data to the signal line after being modulated by the K modulation, and an analog biological measurement signal and the data obtained by measuring the measured value data and the living body received from the signal line. A medical telemeter transmitting device having a medical telemeter transmitting by a radio signal; and a receiving device receiving the radio signal, wherein the medical telemeter demodulates the measurement value data received from the signal line.
An SK demodulation unit, data extraction means for analyzing measurement value data obtained by FSK demodulation and extracting transmission measurement values required for transmission, and an analog / digital (A / D) for converting the analog biometric signal into a digital signal. ) Conversion means, A /
Means for formatting the D-converted biometric signal and the transmission measurement from the data extraction means into a predetermined data format; means for digitally modulating the formatted data; and modulating the digitally modulated signal. And a radio transmitting means for transmitting the radio signal as a radio signal, wherein the receiving device includes a receiving means for receiving and demodulating the radio signal, and a digital demodulating means for demodulating a signal from the receiving means. Medical telemeter device.