JP2008086399A - Band for securing detecting device and biological information detecting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a band for securing a detecting device to secure a detecting device in order to detect accurate biological information irrespective of a detecting site or a user's body type, and a biological information detecting device equipped with the band. <P>SOLUTION: A myoelectric detecting device 10 is secured to a body with the band 20 for securing a device which is equipped with a device securing part 21 for securing the myoelectric detecting device 10 as a main body of the detecting device equipped with a pair of sensing electrodes 12, 12 for detecting a potential difference as they remain in contact with the body and a band part 22 working as a reference electrode for detecting reference potential to the potential difference detected by the sensing electrodes 12, 12 as they remain in contact with the body. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a detection device fixing band and a biological information detection device, and more particularly to a detection device fixing band and a biological information detection device for fixing a device for detecting a potential difference between various parts of a biological body.

  2. Description of the Related Art Conventionally, a biological information detection apparatus that measures changes in biological information such as myoelectric potential, pulse, blood pressure, and body temperature is known. This biological information detection apparatus is widely used not only as a medical device but also for the purpose of maintaining health and grasping an exercise state.

Such biological information can be detected by, for example, providing a measuring means for measuring a myoelectric potential as a response to an electrical stimulus given to a living body muscle, detecting a potential difference between various parts of the living body, and obtaining it by the measuring means. A technique for acquiring biological information based on the detected myoelectric potential is known (see, for example, Patent Document 1).
In an apparatus for obtaining biological information by detecting a potential difference between various parts of a living body as described in Patent Document 1, a pair of detection electrodes for detecting a potential difference and a reference electrode for detecting a reference potential are in contact with human skin. The myoelectric potential and the like are detected by the potential difference between the detection electrodes.
JP 2000-232A

  However, detection of biological information may be performed at each part of the body, such as an arm or a leg, depending on the application. Moreover, the physique of the user who is a detection target also varies. For this reason, the thickness of the mounting site where the apparatus is mounted differs depending on the detection site, the user's physique, and the like, and the reference electrode may not sufficiently contact the body surface depending on the thickness of the mounting site. If the contact of the reference electrode is not sufficient, the reference potential cannot be detected properly, and accurate biological information cannot be detected.

  Therefore, the present invention has been made to solve the above-described problems, and the detection device is fixed so that accurate biological information can be detected regardless of the detection site or the user's physique. It is an object of the present invention to provide a detection device fixing band and a biological information detection device including such a band.

The detection device fixing band (for example, the detection device fixing band 20 in FIGS. 1, 2, 3, and 4) in the invention according to claim 1 is:
A detection device body (for example, myoelectric detection device 10 in FIGS. 2 and 5) having a pair of detection electrodes (for example, detection electrode 12 in FIGS. 2 and 5) that detects a potential difference while being in contact with the body is fixed. A device fixing portion (for example, the device fixing portion 21 in FIGS. 1, 2 and 3);
A band portion (for example, the band portion 22 in FIGS. 1, 2, 3, and 4) that also serves as a reference electrode that detects a reference potential with respect to a potential difference detected by the pair of detection electrodes in contact with the body;
It is characterized by having.

The invention according to claim 2 is the detection device fixing band according to claim 1,
The band portion is formed of a stretchable material.

The invention described in claim 3 is the device fixing band according to claim 1 or 2,
The band portion includes length adjusting means (for example, hook-and-loop fasteners 24a and 24b in FIGS. 2 and 4) for adjusting the length of the band portion.

The invention according to claim 4 is the detection device fixing band according to any one of claims 1 to 3,
The band portion is provided with a minute protrusion (for example, the minute protrusion 23 in FIG. 2) having conductivity on a surface that comes into contact with the body.

The biological information detection apparatus (for example, the myoelectric detection apparatus 10 in FIGS. 2 and 5) according to the invention described in claim 5 includes:
A detection device main body (for example, the casing 11 in FIGS. 2 and 5) provided with a pair of detection electrodes (for example, the detection electrode 12 in FIGS. 2 and 5) that detects a potential difference in contact with the body;
A device fixing band (for example, the device fixing band 20 of FIGS. 1, 2, 3 and 4) for fixing the detection device main body to a detection target part of the body,
The device fixing band is:
A device fixing portion (for example, the device fixing portion 21 in FIGS. 1, 2 and 3) for fixing the detection device main body;
A band part having a reference potential detection function for detecting a reference potential with respect to a potential difference detected by the pair of detection electrodes in contact with the body (for example, the band part 22 in FIGS. 1, 2, 3 and 4). When,
It is characterized by having.

The invention according to claim 6 is the biological information detection apparatus according to claim 5,
Of the detection device main body, the pair of detection electrodes is provided on one surface, and the other surface is electrically contacted with the band portion (for example, the reference potential electrode portion 13 in FIGS. 2 and 5). It is characterized by providing.

The invention according to claim 7 is the biological information detection apparatus according to claim 6,
The band portion includes an electrode connection portion (for example, the electrode connection portion 25 in FIG. 7) that is electrically connected to the electrode portion in the detection device main body.

  According to the first aspect of the present invention, it is possible to fix the detection device body including a pair of detection electrodes that detect a potential difference while being in contact with the body by the device fixing portion, and to detect the reference potential by the band portion. it can.

  According to the invention described in claim 2, since the band portion is formed of a stretchable material, it can be brought into close contact with the body surface when worn.

  According to invention of Claim 3, since the band part is provided with the length adjustment means which adjusts length, it can respond to the attachment site | part of various thickness and a shape.

  According to the fourth aspect of the present invention, since the surface of the band portion that comes into contact with the body is provided with the minute projections having conductivity, the air permeability at the time of wearing can be secured and the reference potential is detected. It is possible to fulfill the function to perform.

  According to the invention of claim 5, while fixing the detection device main body provided with the pair of detection electrodes by the device fixing portion of the device fixing band, the potential difference is detected in a state in contact with the body by the detection device main body, The reference potential can be detected by the band portion of the device fixing band.

  According to the sixth aspect of the present invention, the detection device main body is in electrical contact with the band portion by the electrode portion provided on the surface opposite to the surface provided with the pair of detection electrodes, so that the reference potential is surely obtained. Can take.

  According to the seventh aspect of the present invention, the reference potential can be surely obtained by electrically connecting the electrode portion provided in the main body of the detection device and the electrode connecting portion provided in the band portion.

  Hereinafter, in order to describe a preferred embodiment of the biological information detection apparatus of the present invention, a case where the muscle activity state is measured by detecting the myoelectric potential of the arm as the biological information will be described as an example.

  FIG. 1 is a view showing a state in which a user wears a myoelectric detection device (detection device main body) 10 as a biological information detection device according to the present invention with a device fixing band 20 which is a detection device fixing band according to the present invention. FIG. 2 is a cross-sectional view showing a mounting state of the device fixing band 20 and the myoelectric detection device 10 shown in FIG.

When the myoelectric detection device 10 measures the myoelectric potential of the muscle of the arm A during exercise, for example, as shown in FIG. 1, the myoelectric detection device 10 is placed on one of the biceps muscles of the arm A. Installed. For example, a wristwatch type control device (not shown) capable of data communication with the myoelectric detection device 10 is attached to the wrist or the like.
In the present embodiment, a case where one myoelectric detection device 10 is provided and the myoelectric potential of the muscle of the arm A is measured will be described as an example. However, the number of the myoelectric detection devices 10 to be worn on the body and the parts to be worn are as follows. It is not limited to this. For example, the configuration may be such that the myoelectric detection device 10 is mounted on the biceps of both arms, or the myoelectric detection device 10 is mounted on another body part such as the outer vastus muscle of the quadriceps of the foot. It is good.

  1 and 2, the user attaches the myoelectric detection device 10 to the surface of the arm A capable of measuring the myoelectric potential of the biceps of the arm A, as shown in FIGS. To fix.

By mounting the myoelectric detection device 10, a pair of detection electrodes 12 (described later) provided in the myoelectric detection device 10 are arranged so that the extending direction thereof is substantially orthogonal to the length direction of the muscle fibers M. (See FIG. 5). The user then starts exercise after operating the control device to start measuring myoelectric potential. Alternatively, the user can also start measuring myoelectric potential during exercise.
When such an exercise is performed, the muscles of the arm are repeatedly activated and paused. Therefore, if the activity state and the paused state of the muscle are detected by the myoelectric potential, the muscle activity cycle can be obtained.

  First, the configuration of the device fixing band (detecting device fixing band) 20 will be described.

  The device fixing band 20 includes a device fixing portion 21 that fixes the myoelectric detection device 10 and a band portion 22 that is wound around the attachment site.

  As shown in FIG.1 and FIG.3, the apparatus fixing | fixed part 21 is a recessed part depressed toward the side which does not contact a body surface (skin S). The length dimension of the device fixing portion 21 and the depth of the dent are formed slightly larger than the outer dimensions of the myoelectric detection device 10, and the device when the myoelectric detection device 10 is fitted into the device fixing portion 21. The myoelectric detection device 10 is fixed by the inner wall of the fixing portion 21 holding the outer shape of the myoelectric detection device 10. Moreover, when the myoelectric detection device 10 is fitted into the device fixing unit 21, the inner wall of the device fixing unit 21 contacts the surface opposite to the surface on which the detection electrode 12 of the myoelectric detection device 10 is provided. The portion is formed of a conductive material. When a body reference potential is detected by the band portion 22 as described later, the portion can be conducted to the myoelectric detection device 10. .

  The band part 22 is formed of a material having conductivity and stretchability, such as a resin, and is formed in a long shape so as to be widely applicable to various wearing parts of users of various physiques. The band unit 22 detects the reference potential of the body with respect to the potential difference detected by the pair of detection electrodes 12 by contacting the body by being wound around the outer peripheral surface (for example, the outer peripheral surface of the arm) of the wearing part when wearing the body. It has a reference potential detection function, and also serves as a reference electrode.

  The width of the band portion 22 is not particularly limited, but is formed to a width that does not hinder body movement during exercise. 1, 3, and 4, an example is shown in which the band portion 22 is formed with a width that is slightly wider than the device fixing portion 21 over its entirety. The shape is not limited to those exemplified here. For example, the band portion 22 may be widest at the position where the device fixing portion 21 is provided, and may have a shape that gradually decreases in width toward both ends.

  The material forming the device fixing band 20 is preferably a sponge-like soft and lightweight material from the viewpoints of adhesion to the body surface (skin S) and a feeling of wearing. Moreover, the material which forms the apparatus fixing band 20 should just have electroconductivity and a stretching property, and is not limited to resin.

  As shown in FIG. 2, conductive microprojections 23 are provided on the surface of the band portion 22 that contacts the body surface (skin S). By providing the conductive microprojections 23, when the band portion 22 is brought into contact with the body surface (skin S), the air permeability can be ensured while maintaining the detection of the reference potential. Even when sweating, sweat can be released to maintain a good wearing feeling.

  As shown in FIG. 4, at one end of the outer surface (the surface that does not contact the body surface (skin S)) and one end of the inner surface (the surface that contacts the body surface (skin S)) of the device fixing band 20 Are hook-and-loop fasteners (for example, Velcro (registered trademark), Velcro fasteners) 24a and 24b formed of male and female raised groups as length adjusting means for adjusting the length of each band part. The user adjusts the position for fixing the surface fasteners 24a and 24b in accordance with the thickness of his / her arm, which is the attachment site of the myoelectric detection device 10, and sets the length of the band portion 22 to a length suitable for the attachment site. It is supposed to be adjusted.

  Next, the configuration of the myoelectric detection device 10 fixed by the device fixing band 20 will be described.

FIG. 5 is a plan view of the myoelectric detection device 10.
As shown in FIGS. 2 and 5, the myoelectric detection device 10 has a casing 11, a pair of detection electrodes 12 for detecting myoelectric potential, and a reference potential with respect to the potential detected by the pair of detection electrodes 12. A reference potential electrode portion 13 for conducting electrical connection from the band portion 22 of the device fixing band 20 to the myoelectric detection device 10.

  In order to improve the adhesion of the myoelectric detection device 10 to the body surface (skin S), the housing 11 is preferably formed of a flexible material such as resin.

  The detection electrode 12 is a potential difference detection electrode that detects a potential difference between two points on the living body, and is arranged in parallel to each other so as to be exposed to the outside from one surface of the housing 11. As described above, the detection electrode 12 is arranged so that the extending direction thereof is substantially orthogonal to the length direction of the muscle fibers M. The pair of detection electrodes are preferably resin electrodes formed of a conductive resin.

The reference potential electrode unit 13 is electrically connected to the band unit 22 when the band unit 22 is worn on the body, and conducts the reference potential detected by the band unit 22 to the myoelectric detection device 10. 11 on the surface opposite to the surface on which the pair of detection electrodes are provided.
In addition, the shape, arrangement | positioning, etc. of the reference potential electrode part 13 are not limited to the example of illustration. For example, the reference potential electrode portion 13 is provided in a plane on all or part of the surface opposite to the surface on which the pair of detection electrodes of the housing 11 is provided, and the band portion 22 and the reference potential electrode portion 13 are in surface contact. It is good also as a structure which makes the myoelectric detection apparatus 10 conduct | electrically_connect the reference electric potential detected by the band part 22 by doing.

  FIG. 6 is an overall circuit block diagram illustrating an example of a control configuration of the myoelectric detection device 10. As shown in FIG. 6, the myoelectric detection device 10 includes a measurement unit 110, a CPU 120, a transmission / reception unit 130, and a storage unit 140.

  Among them, the measurement unit 110 is a functional unit that measures myoelectric potential as biological information, and reduces the potential difference detected by the pair of detection electrodes 12, the reference electrode 13, and the pair of detection electrodes 12 and the reference electrode 13. Impedance converter 112 for impedance conversion and output, amplifier 113 for amplifying a signal input from impedance converter 112 to a predetermined signal level, and a predetermined frequency among signals input from amplifier 113 The filter 114 is configured to pass a signal in the range and remove a frequency component outside the range, and an A / D converter 115 that performs A / D conversion on the signal input from the filter 114 and outputs the signal.

The potential change between the two points detected by the pair of detection electrodes 12 is several tens of μV to several mV, and the frequency band of the myoelectric potential is 2 to 10 KHz. In general, since the impedance of a living body is very high, impedance conversion is performed by an impedance converter (for example, a voltage follow type circuit) 112. Next, the amplifier (for example, operational amplifier) 113 amplifies the voltage to about 100 times so that the myoelectric waveform can be processed. Various noises are superimposed on the waveform amplified by the amplifier 113. Therefore, the frequency component outside the range to be processed as the myoelectric waveform is removed by the filter 114 in the next stage. Next, the signal (analog signal) input from the filter 114 is converted into a digital signal by an A / D converter (for example, a 12-bit A / D converter) 115.
Although an analog filter is used as the filter 114 here, a digital filter may be used instead of the analog filter. In this case, the digital filter is provided after the A / D converter 115.

The CPU 120 performs instructions, data transfer, and the like to each functional unit in the myoelectric detection device 10 based on programs and data stored in the storage unit 140, data transmitted from the control device, and the like. 10 is controlled. Further, in order to realize the present embodiment, the CPU 120 uses the myoelectric potential (detection result) continuously measured by the detection electrode 12 and the reference electrode 13 of the measurement unit 110 to determine the muscle activity state (index data related to life activity). And a muscle activity detection process for transmitting the calculation result to the control device is executed.
In addition, as index data regarding the biological activity calculated by the CPU 120, for example, a rectified average value (ARV), an RMS (Root Mean Square Value), an integral value, an average frequency (MPF: Mean Power Frequency), Although median frequency (Median Frequency) etc. are mentioned, the parameter | index data regarding the biological activity calculated are not limited to what was illustrated here.

  The transmission / reception unit 130 is a functional unit for performing wireless communication with a control device that is an external device. For example, the transmission / reception unit 130 demodulates a signal transmitted from the control device via an antenna (not shown) and outputs the demodulated signal to the CPU 120. The control signal input from the CPU 120 is modulated and transmitted to the control device via the antenna. In the present embodiment, for example, the transmission / reception unit 130 receives a measurement start signal transmitted from the control device and transmits a measurement result to the control device.

  The storage unit 140 is realized by an IC memory such as a ROM or a RAM, an information storage medium such as a hard disk, and a reading device thereof, and stores a program for causing the CPU 120 to control the myoelectric detection device 10. Yes.

Next, the operation of this embodiment will be described.
First, when the myoelectric detection device 10 is mounted, the user arranges the myoelectric detection device 10 so that the muscle fibers M are substantially orthogonal to the extending direction of the pair of detection electrodes 12, and from above. The device fixing band 20 is wound around the outer peripheral surface of the arm A. Then, the myoelectric detection device 10 is fixed to the body surface (skin S) by fitting the myoelectric detection device 10 into the device fixing unit 21. The user adjusts the length of the band portion 22 so as to be a length suitable for the detection site, and fastens both ends of the band portion 22 with hook-and-loop fasteners 24a and 24b. Thereby, mounting | wearing of the myoelectric detection apparatus 10 is completed. Here, “arranged so as to be substantially orthogonal” is preferably arranged so as to be completely orthogonal to the muscle fibers M. However, since the muscle fibers M themselves are also curved in some places, at least It also includes the case where it is tilted from the orthogonal direction within a range where there is no problem in accuracy in detecting myoelectric potential.

  At this time, since the pair of detection electrodes 12 are exposed from one surface of the casing 11, these electrodes 12 are in close contact with the skin (see FIG. 2). Further, by inserting the myoelectric detection device 10 into the device fixing unit 21, the reference potential electrode unit 13 of the myoelectric detection device 10 comes into contact with the inner surface of the device fixing unit 21 of the device fixing band 20 and is detected by the band unit 22. The body reference potential thus made is conducted to the myoelectric detection device 10.

Thereafter, when a start instruction is input from the control device via the transmission / reception unit 130, the CPU 120 controls the myoelectric detection device 10 by giving instructions to each functional unit in the myoelectric detection device 10, transferring data, and the like. To do. In order to realize the present embodiment, the CPU 120 calculates a muscle activity state (index data related to life activity) based on a myoelectric potential (detection result) continuously measured by the measurement unit 110, and controls the calculation result. The muscle activity detection process transmitted to the apparatus is executed.
In the control device, the calculation result sent from the myoelectric detection device 10 is notified to the user, for example, by displaying it on a display unit (not shown).

  As described above, according to the present embodiment, when the myoelectric detection device 10 is fitted into the device fixing unit 21, the inner wall of the device fixing unit 21 holds the outer shape of the myoelectric detection device 10, thereby detecting myoelectricity. The device 10 is fixed to the body surface (skin S), and the band unit 22 also serves as a reference electrode for detecting a reference potential of the body. For this reason, it is possible to easily fix the myoelectric detection device 10 to the detection target site in a state where the potential difference of the body can be detected simply by fitting the device fixing band 20 into the device fixing portion 21. In addition, the reference potential of the body can be easily detected without worrying about the user's physique, the shape of the wearing site, the displacement due to exercise, etc., simply by passing the band portion 21 around the wearing site.

  Moreover, since the band part 22 is formed with the material which has a stretching property, while being able to contact | adhere to the body surface at the time of mounting | wearing, it fixes the myoelectric detection apparatus 10 without inhibiting a body movement at the time of an exercise | movement. Can do.

  Further, the band portion 22 is provided with hook-and-loop fasteners 24a and 24b as length adjusting means for adjusting the length. Since the hook-and-loop fasteners 24a and 24b have a large fixing area, they can be fixed at any position of the user. For this reason, the length of the band part 22 can be adjusted corresponding to the mounting parts of various thicknesses and shapes, and the myoelectric detection device 10 can be connected to the user's body regardless of the mounting part or the user's physique. It can be fixed on the surface (skin S).

  In addition, since a minute protrusion 23 having conductivity is provided on the surface of the band portion 22 that comes into contact with the body, when the band portion 22 is brought into contact with the body surface (skin S), the reference potential is reduced. Breathability can be secured while maintaining detectability. For this reason, even when sweating due to exercise, sweat can be diffused to maintain a good wearing feeling.

  Further, since the casing 11 of the myoelectric detection device 10 is provided with the reference potential electrode portion 13 that is in electrical contact with the band portion 22 on the surface opposite to the surface provided with the pair of detection electrodes 12, The reference potential can be reliably conducted to the myoelectric detection device 10.

  Further, since the electrode connection part 25 is provided in the band part 22, the reference potential electrode part 13 provided in the myoelectric detection device 10 and the electrode connection part 25 provided in the band part 22 are electrically connected. Thus, the reference potential can be reliably conducted to the myoelectric detection device 10.

Note that the present invention is not limited to the above embodiment, and can be modified as appropriate.
For example, in this embodiment, surface fasteners (for example, Velcro (registered trademark), Velcro fasteners) 24 a and 24 b are attached to one end of the outer surface and the inner surface of the band portion 22 as length adjusting means for adjusting the length of the band portion 22. Although provided, the length adjusting means is not limited to this. For example, a plurality of hooks and hook locking portions, male and female snap buttons, buttons and button holes, etc. are provided at each end of the band portion 22 so that the length of the band portion 22 can be adjusted in multiple stages. It may be.

  In the present embodiment, as the device fixing unit 21, the myoelectric detection device 10 is fitted into the device fixing unit 21 so that the inner wall of the device fixing unit 21 holds the outer shape of the myoelectric detection device 10. Although the device fixing portion 21 has been described as an example for fixing the detection device 10, the device fixing portion 21 can fix the myoelectric detection device 10 so as not to be displaced when the device fixing band 20 is attached to the attachment site. It is sufficient if it is a thing, and it is not limited to the shape illustrated here.

  Further, in the present embodiment, the reference potential electrode portion 13 of the myoelectric detection device 10 contacts the inner surface of the device fixing portion 21 of the device fixing band 20, so that the body reference potential detected by the band portion 22 is determined as a muscle. Although the configuration is such that the electrical detection device 10 is conducted, the configuration in which the reference potential is conducted to the myoelectric detection device 10 is not limited to that exemplified here.

For example, as shown in FIG. 7, at the position corresponding to the reference potential electrode unit 13 of the myoelectric detection device 10 when the myoelectric detection device 10 is fitted into the device fixing unit 21 on the inner wall of the device fixing unit 21. An electrode connection portion 25 formed of a conductive material may be provided so that the body reference potential detected by the band portion 22 is conducted to the myoelectric detection device 10 via the electrode connection portion 25.
In this case, it is sufficient that the electrode connection portion 25 is made of a conductive material and the reference potential detected by the band portion 22 can be conducted to the myoelectric detection device 10, and the inner wall of the device fixing portion 21 itself. Need not be formed of a conductive material.

  In the present embodiment, the myoelectric detection device 10 and the device fixing band 20 are provided separately from each other, but the device fixing band may be integrated with the myoelectric detection device. In this case, the myoelectric detection device 10 includes a pair of detection electrodes that detect a potential difference in contact with the body, a housing (detection device body), and a device fixing that fixes the housing to a detection target part of the body. And a device fixing band having a band portion having a reference potential detection function.

  In addition, it is needless to say that the present invention is not limited to the above embodiment and can be modified as appropriate.

It is a perspective view which shows the state which mounted | wore the apparatus fixing band with the myoelectric detection apparatus as a biological information detection apparatus of embodiment of this invention. It is sectional drawing which shows the state with which the myoelectric detection apparatus of embodiment of this invention was mounted | worn with the band for apparatus fixation. It is a perspective view which shows the band for apparatus fixation of embodiment of this invention. It is a perspective view which shows the length adjustment means of the apparatus fixing band of embodiment of this invention. It is a top view of the myoelectric detection apparatus as a biological information detection apparatus of this real embodiment. FIG. 3 is an overall circuit block diagram illustrating an example of a control configuration of the myoelectric detection device of FIG. 2. It is a front view showing the modification of the band for apparatus fixation of FIG.

Explanation of symbols

10 Myoelectric detection device (biological information detection device)
DESCRIPTION OF SYMBOLS 11 Housing | casing 12 Detection electrode 13 Reference potential electrode part 20 Band for apparatus fixation (band for detection apparatus fixation)
DESCRIPTION OF SYMBOLS 21 Apparatus fixing part 22 Band part 23 Microprotrusion 24 Surface fastener 25 Electrode connection part 110 Measuring part 112 Impedance converter 113 Amplifier 114 Filter 115 A / D converter 120 CPU
130 Transceiver A Arm M Muscle fiber S Skin (body surface)

Claims (7)

A device fixing unit for fixing a detection device body including a pair of detection electrodes for detecting a potential difference in a state of contact with the body;
A band portion serving also as a reference electrode for detecting a reference potential with respect to a potential difference detected by the pair of detection electrodes in a state of being in contact with the body;
A detection device fixing band comprising:   The detection device fixing band according to claim 1, wherein the band portion is formed of a stretchable material.   The said band part is provided with the length adjustment means which adjusts the length of the said band part, The band for detection apparatus fixation of Claim 1 or Claim 2 characterized by the above-mentioned.   The detection device fixing band according to any one of claims 1 to 3, wherein a minute protrusion having conductivity is provided on a surface of the band portion that contacts the body. A detection device main body comprising a pair of detection electrodes for detecting a potential difference in contact with the body;
A device fixing band for fixing the detection device main body to a detection target part of the body,
The device fixing band is:
A device fixing portion for fixing the detection device body;
A band portion having a reference potential detection function for detecting a reference potential with respect to a potential difference detected by the pair of detection electrodes in contact with the body;
A biological information detection device comprising:   The said detection apparatus main body is equipped with the said pair of detection electrode in one surface, and provided the electrode part which contacts the said band part in the other surface. Biological information detection device.   The biological information detection apparatus according to claim 6, wherein the band section includes an electrode connection section that is electrically connected to the electrode section in the detection apparatus main body.

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