JPH0470012B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an adsorption type induction electrode for biological use, and in particular, pressurized air is introduced into the adsorption type induction electrode to create a negative pressure between the skin surface and the electrode. This invention relates to an adsorption-type induction electrode for living organisms that has improved adsorption properties by causing this phenomenon.

[Prior art]

As is well known, bioelectricity generated in a living body is induced by the activities of the heart, brain, muscles, etc. In particular, cardiac bioelectricity is detected by detecting weak currents induced on the skin of a living body using an external electrocardiograph to diagnose cardiac abnormalities. This electrocardiograph requires electrodes to be brought into close contact with the surface of the skin in order to electrically connect the input section to the living body.

A conventional electrode that is brought into close contact with the skin surface will be explained with reference to FIG. The electrode shown in Fig. 6 uses a suction method as a means of bringing it into close contact with the skin surface of a living body.The conventional rubber suction electrode 1 has a suction hole 3 of a metal semicircular electrode cup 2 and a hollow rubber A metal hollow pipe 6 communicates with the opening 5 of the dropper 4, and a terminal 7 is connected to the outer spherical surface of the electrode cup 2 to be guided to the input side of an electrocardiograph (not shown).
This is a structure in which the two are connected.

To use such a conventional rubber suction electrode 1, first press the rubber dropper 4 with your hand, then touch the electrode cup 2 on the skin surface 8 of the living body, and then release this manual pressure. Then, the pressure inside the electrode cup 2 is reduced by the elastic restoring force of the rubber dropper 4, so that the rubber adsorption electrode 1 is attracted to the skin surface.

[Problem to be solved by the invention]

By the way, abnormalities in the heart are diagnosed by attaching the rubber suction electrode 1 to the skin surface and inducing a weak current generated in the heart into an electrocardiograph, but this rubber suction electrode 1 has a considerable suction force. Therefore, there is an inconvenience that traces of the semicircular electrode cup 2 remain on the skin surface for several days after using the rubber suction electrode 1, causing extreme discomfort. In addition, some people experience pain and skin irritation, and people with dense hair on their skin tend to have poor adsorption properties.

[Means to solve the problem]

Therefore, the present invention has been made by focusing on such conventional problems, and includes a top surface portion 23 in which an insertion groove 27 and a fitting groove 28 are formed, and a top surface portion 23 from the periphery of this top surface portion 23. An elastic cylindrical suction cup 22 having a hanging opening 25 and a communication hole 29 that communicates between the opening 25 and the insertion groove 27, and a fitting groove 28 of the suction cup 22. a nozzle pipe 31 bonded to the outer surface of the electrode support plate 30 and inserted into the insertion groove 27 of the suction cup 22.
and an electrode plate 34 detachably attached to the back surface of the electrode support plate 30 in order to contact the skin surface of the living body and lead the current inside the living body out of the body. This invention provides an adsorption type induction electrode for a living body in which a contact piece 24 is formed in a curved manner so as to match the skin surface of the living body, and a negative pressure is generated in this opening 25 so that the electrode is adsorbed to the skin surface of the living body. The object of the present invention is to solve the above problems by obtaining a biological adsorption type electrode with excellent adsorption properties.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS How the configuration of the present invention is actually implemented will be explained below with reference to the drawings, along with its operation. FIG. 5 is an overall perspective view of a biological electrode adsorption device on which the biological adsorption type induction electrode of the present invention is attached, and in the figure, 10 is a quadrangular column-shaped support of the biological electrode adsorption device 9; A rotating part 11 is loosely fitted into the upper part of the column 10, and the rotating part 11 can freely rotate 360 degrees in the horizontal direction with respect to the column 10. In addition, the lower part of the pillar 10 is equipped with an electrocardiograph 12.
is fixed to a conveyor table 13 on which is placed.

An electrode tube support arm 14 projects horizontally from the pivoting section 11 of the support column 10, and the electrode tube supporting arm 14 can rotate 360 degrees horizontally as the pivoting section 11 rotates in the horizontal direction, as shown in the imaginary line. It can be stopped at any position. Furthermore, this electrode support arm 14 is rotatable, that is, can be moved up and down, as shown by the arrow, about the up and down movement mechanism 15 as an axis. A disk-shaped relay head 16 is fixed at the tip of this electrode support arm 14. A plurality of rubber electrode tubes 17 are suspended from this relay head 16, and a biological suction type induction electrode 18 of the present invention is attached to one end of each electrode tube 17. The structure of No. 18 will be explained in detail later.

A suction type induction electrode 18 is provided below the conveyance table 13.
A pressurizing pump 19 is disposed for feeding pressurized air into the pump, and 20 is a foot switch for starting the pressurizing pump 19.

The suction-type induction electrode 18 for living organisms has a nozzle pipe and an electrode plate fitted to the lower part of a suction cup.
2 is made of elastic plastic;
As shown in FIG.
It is formed into a cylindrical shape with a contact piece 24 that closely contacts the skin surface of the living body. The lower end of this contact piece 24 is curved so that it can easily match the skin surface of the living body, and an opening 25 is formed as shown in FIG. 4 by forming this contact piece 24.

A protrusion 26 is provided at approximately the center of the upper surface of the top surface portion 23, as shown in FIG. 2, and an insertion groove 27 is formed within the protrusion 26 as shown in FIGS. At the same time, a fitting groove 28 is recessed in the center of the back surface of the top surface portion 23 and communicates with the insertion groove 27, as shown in FIGS. 3 and 5.

Furthermore, as shown in FIG. 4, a communication hole 29 is bored in the top surface portion 23 adjacent to the fitting groove 28, so that the opening 25 and the insertion groove 27 communicate with each other.

30 is the fitting groove 2 as shown in FIG.
As shown in FIG. As shown in FIG. 4, the injection nozzle 32 is formed with a narrowed diameter at its tip. Further, the circumferential surface of the nozzle pipe 31 is shown in FIGS. 2 and 4.
As shown in the figure, a ventilation hole 33 is bored, and when the nozzle pipe 31 is inserted into the insertion groove 27, the ventilation hole 33 is inserted into the communication hole 33 formed in the suction cup 22.
It has become connected to 9.

Further, on the back surface of the electrode support plate 30, there is an electrode plate 34 shown in FIG.
It is removably fixed as shown in FIG. The electrode support plate 30 can also be used as an electrode plate, but the electrode plate corrodes when it comes into close contact with the cream applied to the skin of a living body, and as a result it must be replaced. The electrode plate 34 is separable so that it can be replaced at any time.

As shown in FIG. 4, the electrode support plate 30 to which the electrode plate 34 and the nozzle pipe 31 are fixed is inserted into the insertion groove 27 formed in the protrusion 26 of the suction cup 22. At the same time, the electrode support plate 30 is fitted into the fitting groove 28 formed in the top surface 23 of the suction cup 22.

Then, the nozzle pipe 31 is inserted into the insertion groove 27,
When the electrode support plate 30 is fitted to the top surface portion, the opening 25, the communication hole 29, and the ventilation hole 33 match to form an air flow path, and the injection nozzle faces this air flow path. . When the nozzle tube 31 is inserted into the insertion groove 27, one end of the nozzle tube 31 protrudes from the suction cup 22 and is fitted into a holder 36 attached to the base end of the rubber electrode tube 17. Ru. A cord 37 is connected to this electrode tube 17, and this cord 37 is connected to the electrode support arm 14 in FIG.
It is connected to a connection cord 21 disposed within the pivoting portion 11 of the support column 10 and connected to the electrocardiograph 12 .

Next, the biological adsorption type electrode 18 having the above configuration
To explain how to use the device, first, as shown in FIG. 5, the carrier 13 is moved to the vicinity of the bed 38 on which the patient is lying, and the biological electrode suction device 9 is transported to the vicinity of the bed 38. Next, pressure pump 1
Pressurized air is inserted into the column 10 by operating the foot switch 20 at 9. After this pressurized air is introduced into the column 10, the electrode tube support arm 14 is rotated horizontally and moved up and down, and the suction cup 19 of the suction type induction electrode 18 attached to the tip of the electrode tube 17 is moved. The contact piece 23 is brought into contact with the patient's skin surface.

When this suction type induction electrode 18 comes into contact with the patient's skin surface, the pressurized air sent by the support column 10 passes through the support arm 14 and the electrode tube 17 and enters the nozzle tube 31 of the suction type induction electrode 18. and is vigorously sprayed from the spray nozzle 32 whose tip is constricted. When this pressurized air is injected from the injection nozzle 32, as shown in FIG.
The air in the opening 25 formed between the skin surface and the skin surface passes through the communication hole 29 and the ventilation hole 33 to the exhaust port 39.
The air is discharged from the suction cup 22 together with the pressurized air.

As the air inside the opening 25 is discharged, a negative pressure phenomenon occurs inside the opening 25, and as a result, the skin surface that is in contact with the contact piece 24 of the suction cup 22 is sucked upward, and the skin surface By adhering to the contact piece 24, the adsorption type induction electrode 18 comes to be in close contact with the skin surface. After the cardiac examination is completed in this way, the suction between the suction type induction electrode 18 and the skin surface can be easily released by stopping the drive of the pressurizing pump.

[Effects of the present invention]

As described above, according to the present invention, pressurized air is introduced into the suction type induction electrode, and a negative pressure phenomenon is generated between the skin surface of the living body and the suction type induction electrode, so that the suction type induction electrode is attracted to the skin surface. This eliminates the need to forcefully press the suction electrode against the skin surface to adsorb it, unlike conventional rubber suction electrodes, which eliminates the need to feel pain and prevent irritation even in people with sensitive skin. There isn't.

In addition, the adhesion piece of the suction cup is elastic and curved to match the skin surface of the living body, so when negative pressure is generated and the adhesion piece adsorbs to the skin surface, it is elastically deformed by the negative pressure and completely removed. Can adhere closely to the skin surface.

Furthermore, with conventional rubber suction electrodes, the traces of the suction electrodes adsorbed to the skin surface do not disappear for several days, but with this suction type induction electrode, the traces of the electrodes disappear after 1 to 2 hours, and the discomfort disappears.

In addition, the electrode support plate and electrode separation plate are separable so that the electrode plate can be detachably attached to the electrode support attachment plate, making it easy and convenient to replace the electrode plate, which is prone to corrosion. There are several advantages.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an adsorption type induction electrode according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the adsorption type disturbance electrode shown in FIG. 1, and FIG. FIG. 4 is a longitudinal sectional view of the suction type induction electrode of FIG. 1, FIG. 5 is a perspective view of a biological electrode suction device equipped with the suction type induction electrode of the present invention,
FIG. 6 is an explanatory diagram of a conventional rubber adsorption electrode. 18... Adsorption type induction electrode for living body, 22... Suction cup, 23... Top surface part, 24... Close contact piece, 25...
Opening portion, 27... Feeding groove, 28... Fitting groove, 2
9... Communication hole, 30... Electrode support plate, 31... Nozzle pipe, 34... Electrode plate.

Claims (1)

[Claims] 1. A top surface portion 23 in which an insertion groove 27 and a fitting groove 28 are formed, an opening 25 that hangs down from the periphery of this top surface portion 23, and a space between this opening 25 and the insertion groove 27. An elastic cylindrical suction cup 22 having a communicating hole 29, an electrode support plate 30 fitted into the fitting groove 28 of the suction cup 22, and an electrode support plate 30 that is joined to the outer surface of the electrode support plate 30 and The nozzle pipe 31 inserted into the insertion groove 27 of the suction cup 22
and an electrode plate 34 detachably attached to the back surface of the electrode support plate 30 in order to contact the skin surface of the living body and lead the current inside the living body out of the body. An adhesion type induction electrode for a living body, in which a close contact piece 24 is formed in a curved manner so as to match the skin surface of the living body, and a negative pressure is generated in the opening 25 to cause the adhesion to the skin surface of the living body.