JP2003319911A - Saw device thermometer with id and body temperature management system by means of the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a SAW device thermometer with ID and a body temperature management system by means of the thermometer which continuously measure body temperature data without restricting the movement of the body and which unitarily manage the body temperature data of a large number of patients via a network. <P>SOLUTION: The system comprises the SAW device thermometer with ID which is stuck to the body temperature measuring site of the human body for measuring the body temperature data, and a body temperature measuring instrument which performs emitting of an input pulse signal to the thermometer and reception of an output pulse signal reflected by the thermometer, calculates the output pulse signal to calculate the body temperature data and ID information and transmits the body temperature data and the ID information to a server when it is connected with the network. Further, the server continuously measures the body temperature data corresponding to the ID information and the database of them is made by each person to unitarily manage the body temperature data. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a SAW (Surface).
SAW device with ID, which can measure the body temperature data of the patient and acquire the ID information using the Acoustic Wave device, and also can centrally manage the body temperature data of many patients via the network. The present invention relates to a thermometer and a body temperature management system using the thermometer.

[0002]

2. Description of the Related Art Conventionally, a mercury thermometer or an electronic thermometer using a temperature sensor has been used as a means for measuring the body temperature of a human body. In addition, an ear canal thermometer that measures infrared rays emitted from the eardrum in the ear canal with a pyroelectric sensor is becoming widespread.

The above-mentioned mercury thermometer requires a measuring time of about 5 minutes in order to measure an accurate body temperature, which is very time consuming. Moreover, although the electronic thermometer takes less time than the mercury thermometer, it took several minutes. Further, since the ear canal thermometer is a predictive measurement method, the measurement time is much shorter than that of the former.

[0004]

However, when measuring the body temperature of a patient in a hospital, for example, by using the above-mentioned mercury thermometer, electronic thermometer, or ear temperature thermometer, it is only necessary to measure the temperature at regular intervals of several hours. It was Since the body temperature changes with time and varies from person to person, accurate measurement is meaningless and is only a guideline. Therefore, there is a problem in that an appropriate treatment may not be performed due to a sudden abnormality in body temperature being overlooked.

In order to solve the above problems, a system for continuously measuring the body temperature is necessary, and there is means for attaching a temperature sensor to a body temperature measuring portion of a patient and sampling and measuring the body temperature data. There is a problem in that the movement of the body is restricted because the temperature sensor has a signal line.

The present invention has been proposed in order to solve the above-mentioned problems, and it is possible to measure the temperature data of the patient and obtain the ID information by using the SAW device. Since it is not present, body temperature data can be continuously measured without limiting body movements, and body temperature data of a large number of patients can be centrally managed via a network. The object is to provide a body temperature management system using a thermometer.

[0007]

In order to solve the above problems, a SAW device thermometer with an ID and a body temperature management system using the thermometer according to the present invention are attached to a body temperature measuring portion of a human body to measure body temperature data. A SAW device thermometer with an ID, which includes a reflector for measurement, an ID reflector for acquiring ID information, an IDT and an antenna for emitting an input pulse signal and receiving a reflected pulse signal, and a SAW device thermometer with an ID The input pulse signal is emitted and the output pulse signal reflected by the SAW device thermometer with the ID is received, and the output pulse signal is arithmetically processed to calculate the body temperature data and the ID information, and further connected to the network. A body temperature measuring device capable of transmitting the body temperature data and ID information to a server To configure. Further, the body temperature data corresponding to the ID information is continuously measured by the server and is stored in a database for each person, whereby the body temperature data is centrally managed.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings.

FIG. 2 is a first embodiment showing the structure of a SAW device thermometer with ID according to the present invention. SA with ID is shown in FIG.
The IDT 3 is provided on the substrate 2 of the W device thermometer 1 at a substantially central portion.
(Interdigital Transducers) is provided, and a body temperature measuring reflector 5 composed of two reflectors is provided on the left side.
The ID reflector 6 is arranged in parallel with the DT3, and the ID reflector 6 including a large number of reflectors is arranged in parallel with the IDT3 on the right side. The ID reflector 6 is a reflector whose front side is short and whose back side is long with respect to the IDT 3 so that the envelope of the front end of the inside of the substrate of the reflector has a V shape and the bits alternately have a comb shape. . Further, an external terminal 7 to which each bit of the reflector is connected is disposed on the substrate end side of the reflector, and a fuse 8 described later is individually disposed between the external terminal 7 and the ground terminal G. Also, ID
The external antenna 4 is connected to the antenna terminal A to which both ends of T3 are connected.

FIG. 3 is a second embodiment showing the structure of the SAW device thermometer with ID according to the present invention. The ID is provided in the center of the substrate 2 of the SAW device thermometer 1 with ID.
T3 is arranged, the body temperature measuring reflector 5 composed of two reflectors is arranged on the left side in parallel with the IDT3, and the ID reflector 6 composed of many reflectors is arranged on the right side in parallel with the IDT3. It is located at. The ID reflector 6 is a reflector whose front side is short and whose back side is long with respect to the IDT 3 so that the envelope of the front end of the inside of the substrate of the reflector has a V shape and the bits alternately have a comb shape. . Further, an external terminal 7 to which each bit of the reflector is connected is disposed on the substrate end side of the reflector,
Fuses 8 to be described later are individually arranged between the external terminals 7 and the ground terminals G. In addition, the antenna 4 is provided on both ends of the IDT 3.
And both ends of the antenna 4 are connected to the antenna terminal A.

2 and 3, bit 1, bit 3, bit 5, ... Bit 23 are arranged from the side closer to the IDT 3 on the lower side of the substrate 2, and bit 2 from the side closer to the IDT 3 on the upper side. Since a total of 24 reflectors 5 of bit 4, bit 6 ... Bit 24 are arranged, an ID pattern of maximum 24 bits can be generated. Bits 21 to 24 are portions corresponding to the bottom of the V-shape, and the method of arranging a few bits at the bottom is a general method except that the comb is used. Further, the fuse 8 has an ID
The pattern width of the reflector 6 is made much smaller than that of the pattern reflector 6 and has a minute resistance component.

The SAW device thermometer 1 with an ID mounted as described above performs the surface treatment of the substrate 2 and the adhesion treatment of the adhesive pad or the like on the back surface thereof, and then sets the ID information by the cutting treatment of the fuse 8 to detect the human body. Stick on the body temperature measurement site. The actual SAW device thermometer with ID 1
It is preferable that the outer dimensions of the above are rectangular with one side of about 1 to 3 cm.

When an input pulse signal P is emitted from the antenna 12 of the body temperature measuring device 11 to the SAW device thermometer 1 with ID, the input pulse signal P is received by the antenna 4, and then the left and right sides of the substrate 2 are detected by the IDT 3. Proceed to both sides. Here, the input pulse signal P that has proceeded to the left side is reflected by the body temperature measuring reflector 5, returns to the IDT 3 again, and the output pulse signal is reflected from the antenna 4 as an output signal including body temperature information. Further, the input pulse signal P that has proceeded to the right side is reflected by the ID reflector 6 and is again IDT3.
The output pulse signal is reflected from the antenna 4 as an output signal containing ID information. The distance to the body temperature measuring reflector 5 in the IDT 3 and the ID reflector 6
The distance to the body temperature measuring reflector 5 is shorter than the distance to the ID reflector 6, the output pulse signal containing the body temperature information is reflected first, and then the output pulse signal containing the ID information is reflected. Therefore, both output pulse signals do not overlap.

FIG. 4 is a diagram showing the relationship between the input pulse signal and the output pulse signal in the body temperature measuring reflector shown in FIGS. 2 and 3. The antenna of the body temperature measuring device 11 is provided for the SAW device thermometer 1 with ID. When the input pulse signal P is emitted from the input signal 12, the input pulse signal P is received by the antenna 4 and then the IDT as shown in (a) of FIG.
It advances from 3 to the left side of the substrate 2, and is reflected by the first body temperature measuring reflector 5-1. Here, the reflected pulse signal generated by the reflection is a. Next, the input pulse signal P indicated by is further advanced to the left and reflected by the second body temperature measuring reflector 5-2. Here, assuming that the reflection pulse signal generated by the reflection is b, both reflection pulse signals a and b return to the IDT 3 again and are output from the antenna 4 to the antenna 12 of the body temperature measuring device 11 as output pulse signals.

Here, as shown in FIG. 3B, the reflection time interval of the reflection pulse signals a and b when the measured body temperature is T1 is t1.
And the reflected pulse signal a when the reference temperature is T2,
When the reference reflection time interval of b ′ is t2, the reference temperature T2
Can be obtained by measuring the difference between the reference reflection time interval t2 and the reflection time interval t1, that is, the delay time t3. The reflection time interval t1 has the property of becoming shorter when the body temperature is higher and longer when the body temperature is lower. Furthermore, the relational expression between the body temperature and the reflection time interval t1 is between the IDT3 and the body temperature measuring reflectors 5-1 and 5-2. Since it is represented by a linear function of the distance and the phase of the carrier frequency included in the input pulse signal P, the actually measured body temperature T1 can be easily calculated if the reference reflection time interval t2 at the reference temperature T2 is known. As described above, since the body temperature can be calculated only by measuring the reflection time interval t1 of the reflection pulse signals a and b, the body temperature can be measured regardless of the distance between the body temperature measuring device 11 and the ID-equipped SAW device thermometer 1.

FIG. 5 is a diagram showing a method of cutting the fuse of the ID reflector in the SAW device thermometer with ID according to the present invention. In order to make the reflection from the ID reflector 6 to the input pulse signal P effective, In the external terminal 7, the + pole of the high-voltage pulse generator 9 is connected to the corresponding bit terminal, and the − pole of the high-voltage pulse generator 9 and the ground terminal G of the external terminal 7 are commonly connected to the ground 10. Then, by generating a high-voltage pulse from the high-voltage pulse generator 9, the fuse 8 generates heat due to the resistance component of the fuse 8 and is further melted to make the ID reflector 6 effective. FIG. 5 shows a state in which the fuses 8 of bits 1, 5 and 11 are blown. In this way, I
The bit length of the D pattern can be set in advance, or different ID pattern generation can be set for the set bit length. For example, when the bit length is 20 bits, the ID pattern can generate 2 ²⁰ -1 different ID patterns. Then, as the ID information in the ID pattern, a plurality of pieces of information such as the patient identification number, sex, age, department name, etc. can be input.

Next, the principle of reflection of the ID reflector 6 will be described. FIG. 6 is a diagram showing the relationship between the input pulse signal and the reflected pulse signal in the chain double-dashed line portion of FIGS. 2 and 3.
As shown in (a), the input pulse signal P emitted from the IDT 3 is reflected by the first-bit reflector 6-1 of the ID reflector 6, the third-bit reflector 6-3, and the fifth-bit reflector 6-5. The state of being reflected is shown. Since the ID reflector 6 has a V shape,
The reflector 6-3 of the 3rd bit extends inside the substrate 2 by a width W from the reflector 6-1 of the 1st bit, and the reflector 6-5 of the 5th bit extends by a width W from the reflector 6-3 of the 3rd bit. It is assumed to extend inside 2. Here, when the input pulse signal P is emitted from the IDT 3, 1
The reflected pulse signal c is generated from the reflector 6-1 of the bit. Further, the reflected pulse signal d is generated from the portion of the width W of the reflector 5-3 of the third bit, and the reflected pulse signal d ′ is generated by the input pulse signal P that has passed through the reflector 6-1 of the first bit in other portions. Occur. In addition, the reflected pulse signal e is generated from the portion of the width W of the reflector 6-5 of the fifth bit, and the reflector 6-1 of the first bit and the reflector 6 of the third bit are generated in other portions.
The reflected pulse signal e ′ is generated by the input pulse signal P passing through −3. Here, as shown in FIG. 7B, when the time delay between the reflected pulse signal d and the reflected pulse signal d ′ is ignored, the reflected pulse signal d and the reflected pulse signal d ′ overlap each other, and the reflected pulse signal e and the reflected pulse signal e When the time delay of'is ignored, the reflection pulse signal e and the reflection pulse signal e'are overlapped, and the reflection pulse signal c reflected by the reflector 6-1 at the distance L1 from the IDT 3 and the reflector 6-3 at the distance L3 are reflected. The level of the reflected pulse signal e reflected by the reflector 6-5 located at a distance L5 from the reflected pulse signal d reflected is faithfully reflected by the IDT 3 without being attenuated. In FIG. 6, bits 1, 3,
Although the odd-numbered reflectors of 5 have been described, the same applies to the even-numbered reflectors, and since the bits of the ID reflector 6 are alternately arranged in a comb shape, bits 1, 2, 3, 4, 5 , 6, ... It will be reflected in order.

FIG. 7 is a diagram showing the positional relationship of the reflected pulse signals from the ID reflector in the ID pattern of FIG. 5, and as shown in FIG. 5, fuses of bits 1, 5 and 11 out of all 24 bits. 8 is cut by the high-voltage pulse generator 9, the reflected pulse signal p1 from the reflector 6-1 of bit 1 and the reflected pulse signal p5 from the reflector 6-5 of bit 5 by the input pulse signal P emitted from the IDT 3. And reflector 6 of bit 11
Only the reflected pulse signal p11 due to −11 is reflected by the IDT 3. The ID information can be transmitted to the body temperature measuring device 11 by outputting the reflected pulse from the antenna 4. The ID reflector 6 of the bit for which the fuse 8 is not cut is connected to the ground terminal G by the fuse 8, and by returning the ground terminal G to the antenna terminal A side, the input pulse signal P is input to which part. Even if it hits, it is not attenuated and reflected. Therefore, by cutting the fuse 8, the bit length of the ID pattern can be set in advance, or different ID pattern generation can be set for the set bit length.

The fuse 8 is used in setting the bit length.
May be cut from either the smaller bit number, that is, closer to IDT3, or the larger bit number, that is, the farther from IDT3.

FIG. 1 is a circuit block diagram of a SAW device thermometer with an ID according to the present invention and a body temperature measuring device in a body temperature management system using the thermometer. The body temperature measuring device 11 is connected to an SAW device thermometer 1 with an ID from an antenna 12. On the other hand, it emits an input pulse signal P or SA with ID
A pulse transmitting / receiving unit 13 for receiving an output pulse signal including body temperature information and ID information reflected from the antenna 4 of the W device thermometer 1, and a pulse generating unit 14 for generating an original signal of the input pulse signal P. An amplification unit 15 for amplifying the output pulse signal, a phase or amplitude detection unit 16 for detecting the phase or amplitude of the output pulse signal, and a thermostatic chamber 17 for generating a reference reflection time interval at a reference temperature. And a reference SAW device or reference pulse generating circuit 18 disposed in the constant temperature bath 17, and body temperature information and ID obtained from the phase or amplitude detection unit 16.
The body temperature data is calculated by measuring the delay time between the reflection time interval and the reference reflection time interval of the reference SAW device or the reference pulse generation circuit 18 at the reference temperature based on the body temperature information in the output pulse signal including the information and performing arithmetic processing. And a data processing unit 19 for acquiring ID information by an ID pattern, a network communication unit 20 for transmitting the body temperature data and ID information by connecting to a LAN and a network 22 in the subsequent stage, and inside the data processing unit 19. CP
The memory unit 21 stores programs for controlling U and the like, and functions as a register.

[0021]

Embodiments of the present invention will be described with reference to the drawings. Figure 8
FIG. 1 is a diagram showing an embodiment in which the SAW device thermometer with ID of the present invention and the body temperature management system using the thermometer are applied to a body temperature management system for a patient in a hospital.

In each of the patient rooms 26 partitioned by the curtain 25, a bed head 29 having an integrated small compartment, table, etc. is installed on the head side of the bed 28 of each patient 27. Therefore, the body temperature measuring device 11 is installed on the headbed 29, the network communication unit 20 in the body temperature measuring device 11 is connected to a LAN in the hospital, and the LAN is connected via a network 22 such as an intranet or the Internet. Then, it connects to the upper server 23. A monitor device 24 is connected to the server 23.

From the antenna 12 of the body temperature measuring device 11,
The input pulse signal P is emitted to the SAW device thermometer 1 with ID attached to the body temperature measurement site of the patient 27 at a constant sampling cycle. Next, the input pulse signal P
From the antenna 4 of the ID-equipped SAW device thermometer 1 that responded to, the real-time reflected pulse signal of the patient 27 is output as an output pulse signal to the antenna 12 of the body temperature measuring device 11. An input pulse signal P from the body temperature measuring device 11 to the SAW device thermometer 1 with an ID
The emission output of 1 is preferably about 1 m in order to prevent interference with the temperature data of the adjacent patient 27.

The body temperature measuring device 11 uses the body temperature information contained in the output pulse signal to determine the reflection time interval and the reference of the reference SAW device or the reference pulse generating circuit 18 arranged in the thermostatic chamber 17 of the body temperature measuring device 11. By comparing with the reference reflection time interval at the temperature and performing arithmetic processing, the patient 27
It is possible to accurately measure the body temperature of the patient and to obtain the ID information of the patient 27 from the ID information in the output pulse signal. Then, the body temperature data and the ID information calculated by the calculation are relayed through the LAN, and the network 2
2 to the server 23. The constant temperature chamber 17 is generally a small electric or electronic heater, but a standard SAW device or a standard pulse generation circuit 18 is used.
A constant temperature control circuit may be added to itself.

The server 23 can continuously measure the body temperature data for each patient by creating a database of the body temperature data based on the ID information. And
When the body temperature of the patient 27 rises or falls abnormally, an alarm can be output to a terminal device in the nurse center connected to the LAN via the network 22. In this way, by creating a database of continuous body temperature data of a large number of patients 27,
It becomes possible to centrally manage the body temperature data for each person.

The monitor device 24 connected to the server 23 can display numerical values and graphs of the body temperature data of each patient 27, and can also input a set value for alarm output. Furthermore, it is also possible to set print settings for a printer (not shown).

[0027]

As described above, the S with ID of the present invention is used.
If the AW device thermometer and the temperature management system using the thermometer are implemented in hospitals, nursing homes, home care, etc., continuous measurement of body temperature data will be easy just by attaching the SAW device thermometer with ID to the body temperature measurement site of the human body. There is an effect that it can be performed. Further, since the SAW device thermometer with ID has no signal line, and has no electronic circuit, battery, etc., it is very thin, so that the movement of the body is not restricted. In addition, continuous temperature data of a large number of patients can be obtained via the network.
By creating a database based on the D information, there is an effect that the body temperature data for each person can be centrally managed.

[Brief description of drawings]

FIG. 1 is a circuit block diagram of a SAW device thermometer with an ID and a body temperature measuring device in a body temperature management system using the thermometer according to the present invention.

FIG. 2 is a first embodiment diagram showing the structure of a SAW device thermometer with an ID according to the present invention.

FIG. 3 is a second embodiment diagram showing the structure of the SAW device thermometer with ID of the present invention.

FIG. 4 is a diagram showing a relationship between an input pulse signal and a reflected pulse signal in the body temperature measuring reflector of FIGS. 2 and 3.

FIG. 5 is a diagram showing a method of cutting a fuse of an ID reflector in a SAW device thermometer with an ID according to the present invention.

FIG. 6 is a diagram showing a relationship between an input pulse signal and a reflected pulse signal in a two-dot chain line portion of FIGS. 2 and 3.

7 is a diagram showing a positional relationship of reflected pulse signals from an ID reflector in the ID pattern of FIG.

FIG. 8 is a diagram showing an embodiment in which an IDW SAW device thermometer according to the present invention and a body temperature management system using the thermometer are applied to a body temperature management system for a patient in a hospital.

[Explanation of symbols]

SAW device thermometer with 1 ID 2 substrates 3 IDT 4 antenna 5 Body temperature reflector 6 ID reflector 7 External terminal 8 fuse 9 High-voltage pulse generator 10 grand 11 Body temperature measuring device 12 antennas 13 Pulse transmitter / receiver 14 Pulse generator 15 Amplifier 16 Phase or amplitude detector 17 constant temperature bath 18 Reference SAW device or reference pulse generation circuit 19 Data processing unit 20 Network Communication Department 21 memory 22 network 23 servers 24 Monitor device 25 curtains 26 hospital rooms 27 patients 28 beds 29 floor stand

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Koya Sugiyama             3 Pegasus at 8 Miyuki-cho, Shizuoka City, Shizuoka Prefecture             Inside the net corporation (72) Inventor Mitsuteru Inoue             20-6 Jizogairi, Iga Town, Okazaki City, Aichi Prefecture (72) Inventor Hideo Yasuda             3 Pegasus at 8 Miyuki-cho, Shizuoka City, Shizuoka Prefecture             Inside the net corporation (72) Inventor Hirokazu Sugiyama             2-11-25 Sena, Shizuoka City, Shizuoka Prefecture F term (reference) 2F073 AA02 AA19 AA21 AB02 AB12                       BB01 BB20 BC01 BC02 CC01                       CC15 CD11 DD02 FF01 GG01                       GG04 GG07

Claims (4)

[Claims] 1. A body temperature measuring reflector for sticking to a body temperature measuring portion of a human body to measure body temperature data, an ID reflector for acquiring ID information, an input pulse signal emission and a reflection pulse signal reception. SAW device thermometer with ID, which comprises an IDT and an antenna for
Emitting an input pulse signal to the SAW device thermometer with D and receiving an output pulse signal reflected by the SAW device thermometer with ID, and calculating body temperature data and ID information by processing the output pulse signal, Further, the body temperature measuring device capable of transmitting the body temperature data and the ID information to the server by connecting to the network is configured, and the body temperature data corresponding to the ID information is continuously measured by the server, A SAW device thermometer with an ID and a body temperature management system using the thermometer, characterized in that the body temperature data can be centrally managed by creating a database for each person. 2. The SAW device thermometer with an ID and the body temperature management system using the thermometer according to claim 1, wherein the body temperature measuring reflector is composed of two reflectors parallel to the IDT. 3. The ID reflector is parallel to the IDT and has a short front side and a long back side so that the envelope of the tip of the inside of the substrate of the reflector has a V shape and the bits alternately have a comb shape. It is characterized in that an external terminal to which each bit of the reflector is connected is disposed on the substrate end side of the reflector, and a fuse is individually disposed between the external terminal and the ground terminal. The SAW device thermometer with an ID according to claim 1, and a body temperature management system using the thermometer. 4. An SAW device thermometer with ID, which emits an input pulse signal from an antenna, or a SAW with ID.
A pulse transmitter / receiver for receiving an output pulse signal including body temperature information and ID information reflected from an antenna of a device thermometer, a pulse generator for generating an original signal of the input pulse signal, and the output pulse signal An amplification unit for amplification and a phase or amplitude detection unit for detecting the phase or amplitude of the output pulse signal, a thermostatic chamber for generating a reference reflection time interval at a reference temperature, and a thermostatic chamber provided in the thermostatic chamber. Reference SAW device or reference pulse generation circuit, and reference SAW device or reference pulse generation at the reflection time interval and reference temperature according to the body temperature information among the output pulse signals including the body temperature information and ID information obtained from the phase or amplitude detection unit The body temperature data is calculated by measuring the delay time with respect to the reference reflection time interval of the circuit and performing arithmetic processing, and the ID pattern is calculated. For controlling the CPU, etc. in the data processing unit, the data processing unit for acquiring the ID information by the network, the network communication unit for transmitting the body temperature data and the ID information by connecting to the LAN and the network in the subsequent stage. The SAW device thermometer with an ID and the body temperature management system using the thermometer according to claim 1, wherein the SAW device thermometer with an ID is configured by a memory unit or the like that stores the program of 1. and functions as a register.