JPH0529506U - Skin surface myoelectric detection electrode support band - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the adhesion of the skin surface electrode and ensure stable myoelectric detection. A bag body 9 is provided with an opening / closing valve 17 inside a support band body 1 to be used by being wound around a user's arm 7 or foot, and can be inflated and reduced by opening / closing control of the opening / closing valve 17.
And the bag body 9 is provided with a skin surface electrode 11 that comes into contact with the skin surface of the user.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a skin surface myoelectric detection electrode support band used when controlling a myoelectric artificial hand or a robot manipulator.

[0002]

[Prior Art]

 Conventionally, the skin surface electrode used for recognizing the myoelectric signal detected from the skin surface electrode and controlling the myoelectric artificial hand or the robot manipulator is used by directly contacting the skin of the arm, for example. Is. Means for contacting the skin surface electrode with the skin surface include, for example, (a) a method of adhering the skin surface electrode with a paste paste applied to the surface of the skin surface electrode, and (b) a skin surface electrode with tape Means for adhering to the surface, or (c) means for inserting a skin surface electrode inside an elastic supporter as shown in Japanese Patent Application No. 60-96227, or (d) Japanese Patent Application No. 61-50553. There is known a means for providing a large number of linear skin surface electrodes on a support which can be in close contact with the skin surface, as disclosed in Japanese Patent Laid-Open Publication No. 2003-242242.

[0003]

[Problems to be solved by the device]

 As mentioned above, the skin surface electrode functions by directly contacting the skin surface, but the means of (a) and (b) described above make it difficult to adhere when the skin surface has oily components. Therefore, it is necessary to wipe off the oily substance on the skin surface, which makes the adhesion management troublesome and troublesome. In addition, if the adhesive management is neglected, peeling of the adhesive tends to occur when it is moved, artifacts such as noise may be included in the myoelectric signal, and there is a surface with instability, and in (a), the paste becomes sticky. It is uncomfortable and is not a very desirable means.

Further, in the means using the supporter of (c), there is a possibility that the skin surface electrode may be displaced due to the movement of the arm during operation, or the contact may become unstable. In this case, it can be solved by using a supporter with a strong fastening force, but since the whole arm is tightly tightened, a new problem that blood flow is obstructed is brought about. Furthermore, the means of (d) has a problem that it is difficult to properly contact the skin surface electrode for a fat person and a thin person.

Therefore, the present invention aims to provide a new skin surface myoelectricity detection electrode support band which solves the above problems.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a bag body that is provided with an opening / closing valve inside a support band body that is used by being wrapped around a user's arm or foot, and that can be inflated and contracted by opening / closing control of the opening / closing valve. Is provided, and a skin surface electrode that comes into contact with the user's skin surface is provided on the bag body.

[0007]

[Action]

 According to such a skin surface myoelectric electrode support band, the support band body is attached, for example, around the arm.

[0008] In this case, the watch is attached just like a wristwatch without being tightened so strongly. Next, the on-off valve is opened, and air is blown in through the mouth to inflate the bag body. This ensures that the skin surface electrode is in close contact with the skin surface, and a stable contact state can be obtained even during operation.

[0009]

【Example】

 An embodiment of the present invention will be described in detail below with reference to FIGS. 1 and 2.

In the figure, reference numeral 1 denotes a support band body formed of a flexible material, and band holes 3 are provided at one end side at predetermined intervals. At the other end of the support band 1, there is provided a fastener 5 that is fixed by being passed through the band hole 3, and by selecting the band hole 3, the sense of a wristwatch can be obtained according to the thickness of the user's arm 7. It can be installed with.

Inside the support band 1, a pair of skin surface electrodes 11, 11 for detecting skin surface myoelectricity are provided at two locations via a bag body 9 described later. One skin surface electrode 11.11 is a two-channel type in which the other skin surface electrodes 11 and 11 are arranged outside the arm 7 and inside the arm 7, respectively.

The skin surface electrodes 11, 11 may be a single channel at one location, or may be a multi-channel type at three or four locations.

The skin surface electrode 11 is made of a conductive material such as silver chloride in a dish shape, and has a lead wire 13 for sending a detection signal to an amplifier for measuring myoelectricity (not shown). is doing. In this case, the lead wire 13 is omitted when the detection signal is sent to the myoelectricity measurement amplifier (not shown) by the transmitter.

On the other hand, the bag body 9 is formed into a balloon shape by a stretchable material having high airtightness and electrical insulation, and the skin surface electrodes 11 and 11 are formed on the upper surface thereof with an adhesive such as an epoxy resin. It is firmly fixed together. Then, it is set in a recess 15 formed inside the support band body 1 and has an opening / closing valve 17 on the side.

The on-off valve 17 is equipped with a pressure sensor and a constant pressure servo mechanism such as a pressure pump or a pressure cylinder to prevent the pressure from decreasing due to leakage of the pressure medium so that the pressure is corrected. Is desirable.

In order to use the skin surface myoelectricity detection electrode support band thus configured, the support band body 1 is wound around the arm 7 of the user and attached. Next, the on-off valve 17 is opened, and air is sent in through the mouth or the like to inflate the bag body 9. In this case, the pressure medium for inflating the bag body 9 is not limited to air, and for example, compressed gases such as CO2, argon and helium, or liquids such as water, saline and alcohol. It is also possible to adopt a method of press fitting. These compressed gases and liquids are supplied from a micro pump, a micro cylinder, etc. attached to the support band body.

As a result, the skin surface electrode 11 comes into close contact with the skin surface correctly, and stable myoelectric detection can be obtained. In addition, the contact pressure can be changed arbitrarily, and the fluctuation of the contact impedance between the electrode and the skin can be suppressed to be small.

In this embodiment, the explanation is given for use on the arm, but it may be attached to a part such as a foot, a neck or a head.

In addition, as an application field, in addition to controlling myoelectric prostheses and robot manipulators, myoelectric prosthetic hands for forearm amputees, prosthetic hands for amputees of other parts, artificial prosthetic hands such as artificial legs, etc. In the welfare field as a space, in remote space, in the nuclear power plant containment vessel, in the deep sea, in the fire scene, in the vessel for cultivation of toxic microorganisms, remote control robot hand control for extreme work, robot during remote surgery Operation by doctor of hand, operation by doctor of micro robot hand during operation of micro organs such as blood vessels, eyeball, manned operation of robot hand for handling micro device such as LSI device Unmanned telephone station, unmanned radio relay facility, Remote control robots for maintenance and management of facilities that require maintenance such as roads and unmanned substations Manned operation of hands Possible applications include input devices for aircraft pilot control devices and manipulation in virtual spaces created by computer CG.

[0020]

[Effect of the device]

 As described above, according to the present invention, it is possible to easily attach the device, and moreover, the skin surface electrode can be properly and surely adhered to the skin surface. Therefore, there is an advantage that it is possible to detect stable skin surface myoelectric potential with less displacement and artifacts. Further, there is an advantage that the contact pressure between the skin surface electrode and the user's skin can be arbitrarily changed by adjusting the pressure of the pressure medium that is pressed into the bag. In addition, since it is similar to a wristwatch band on the outside, it is not so conspicuous that it is worn, which is also very desirable in terms of appearance.

[Brief description of drawings]

FIG. 1 is a perspective view of a skin surface myoelectric detection electrode support band according to the present invention,

FIG. 2 is a cutaway view of the user wearing the arm,

[Explanation of symbols]

 1 Support band body 7 Arm 9 Bag 11 Skin surface electrode 17 Open / close valve

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location B25J 19/02 9147-3F

Claims (1)

[Scope of utility model registration request] 1. A bag body that is provided with an opening / closing valve and is expandable / reducible by opening / closing control of the opening / closing valve inside a support band main body that is used by being wound around a user's arm or foot. A skin surface myoelectricity detection electrode support band, comprising a skin surface electrode that comes into contact with a user's skin surface.