JPH0686704U - Clip for limb electrode - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the corrosion of the electrodes attached to the limb electrode clips so that the electrolyte solution retains water and facilitate cleaning. Also, the optimum adhesion should be obtained regardless of the body shape of the subject. [Structure] An electrode terminal 11 made of conductive rubber is elastically fitted and mounted on the clip holding portion 7, and a grid-shaped groove 12 is formed on the surface of the electrode terminal 11 facing the extremities.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a limb electrode clip that is attached to a limb of a living body to detect a bioelectric signal such as an electrocardiogram.

[0002]

[Prior art]

 FIG. 6 shows an example of the configuration of a conventional limb electrode clip for attaching electrodes to the wrist or ankle in order to measure bioelectric signals such as an electrocardiogram. In FIG. 6, the pair of sandwiching plates 1 and 2 are rotatably connected near the base ends by a support shaft 3, and grips 4 and 5 are formed on the base end side of the support shaft 3, respectively. Further, the holding portions 6 and 7 are formed on the tip side of the support shaft 3, and the facing surfaces of the holding portions 6 and 7 are each curved in a concave shape. Further, an electrode 8 made of a metal plate is attached to the inner surface of one holding portion 7, and an induction cord 9 is connected to the electrode 8. Further, rectangular through holes 4a and 5a are formed in the grip portions 4 and 5, respectively, and a U-shaped spring 10 is inserted into the through holes 4a and 5a. Both ends of the spring 10 are fixed to the sandwiching portions 6 and 7, respectively, and urge the sandwiching portions 6 and 7 in a direction in which they approach each other.

[0003]

[Problems to be solved by the device]

 In the conventional clip configured as described above, since the electrode 8 is formed of a metal plate, it is necessary to apply the ECG cream to the extremities when the clip is attached. Therefore, there is a problem in that cleaning after the measurement takes time. If an electrolyte solution such as physiological saline is applied instead of cream in order to save this trouble, the electrode 8 may be corroded.

Further, since the electrode 8 is fixed to the one holding portion 7, the electrode 8 does not surely come into contact with the extremities due to differences in the thickness of the extremities of the subject, and a plurality of types of clips are prepared. I had to do it.

The present invention has been made in view of the above circumstances, and provides a limb electrode clip that can prevent corrosion of an electrode due to an electrolyte solution and can obtain optimum adhesion regardless of the body shape of a subject. The purpose is to provide.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention according to claim 1 is rotatably connected to each other via a support shaft, and has a grip portion at a base end side of the support shaft. Therefore, in a limb electrode clip consisting of a pair of sandwiching parts with electrodes attached to one of the distal ends, the electrodes are made of conductive rubber, and a groove is formed on the surface of the conductive rubber that contacts the limbs. It is characterized by being formed.

The present invention according to claim 2 is characterized in that the conductive rubber is held by a metal electrode attached to one of the pair of holding portions.

[0008]

[Action]

 In the limb electrode clip according to claim 1, since the electrode attached to one of the sandwiching portions is made of conductive rubber and the groove is formed on the surface of the conductive rubber, the physiological saline solution is provided through the groove. The electrolyte solution such as can retain water and prevent the corrosion of the electrode. Therefore, it is not necessary to apply the ECG cream that has been used conventionally, and the cleaning after the measurement becomes easy. Further, since the electrode terminal has elasticity and is attached to the holding portion of the clip by frictional force, the electrode can be moved on the holding portion and the holding force of the limbs can be adjusted.

In the limb electrode clip according to claim 2, by holding the conductive rubber in a clip equipped with a conventional metal electrode, corrosion of the electrode terminal is prevented and the electrolyte solution is retained. You can

[0010]

【Example】

 An embodiment of the clip for extremity electrodes of the present invention will be described below with reference to the drawings.

1 and 2 show the configuration of an embodiment of the present invention. 1 and 2, parts corresponding to those of the conventional example shown in FIG. 6 are denoted by the same reference numerals, and the description thereof will be omitted as appropriate. The feature of this embodiment is that the electrode terminal 11 as an electrode is formed of conductive rubber into a substantially U-shape, and is elastically fitted and attached to the holding portion 7 of the clip. The groove 12 is formed. An insertion hole 13 is formed at one end of the electrode terminal 11 to insert a tip (not shown) of the induction code 9 into the insertion hole 13.

According to this embodiment, the grid-shaped concave grooves 12 are formed on the surface of the electrode terminal 11 made of conductive rubber that is not corroded by the electrolyte solution, and the concave grooves 12 form an electrolyte such as physiological saline. Since the solution can be retained, it is not necessary to apply the electrocardiographic cream, which was necessary in the past. As a result, the electrode terminal 11 can be washed after the measurement by washing away the saline solution, and the washing can be simplified. Further, since the electrode terminal 11 is elastically fitted to the gripping portion 7 of the clip and is positioned and held by the frictional force, the electrode terminal 11 can be moved along the gripping portion 7. Therefore, by moving according to the thickness of the subject's extremities, optimum adhesion can be obtained.

In the above embodiment, the case where the electrode terminal 11 is held by the clip holding portion 7 by the frictional force has been described. However, as shown in FIG. 3, the electrode terminal 11 is provided with the protrusion 14 and the clip holding portion is provided. It is also possible to form a plurality of holes 15 into which the protrusions 14 fit and to fit the protrusions 14 into the optimum holes 15 according to the body shape of the subject. By positioning and fixing the electrode terminal 11 to the sandwiching portion 7 in this manner, optimum adhesion of the electrode terminal 11 to the extremities can be obtained.

4 and 5 show the configuration of another embodiment of the present invention. In this embodiment, the slit holes 16 are formed at both ends of the electrode terminal 11 facing each other in the thickness thereof, and the protrusions 8a formed on the two opposite sides of the metal electrode 8 in the conventional example shown in FIG. Was fitted into the slit hole 16 to hold and fix the electrode terminal 11 on the metal electrode 8.

According to the present embodiment, the conventional clip having the metal electrode 8 mounted thereon is used to cover the metal electrode 8 and the electrode terminals 11 made of conductive rubber having the grid-shaped grooves 12 formed on the surface thereof. By doing so, it is possible to eliminate the need for an electrocardiographic cream, which has been conventionally required, to retain an electrolyte solution such as physiological saline, and to facilitate washing.

[0016]

[Effect of device]

 As described above, according to the limb electrode clip of the present invention, since the electrode formed of the conductive rubber having the concave groove formed on the surface of the clip is mounted, the electrode is corroded. Instead, an electrolyte solution such as physiological saline can be kept in water and cleaning can be facilitated. Further, by moving the electrode, it is possible to obtain the optimum adhesion of the electrode to the extremities according to the body shape of the subject.

Further, by mounting the above electrode on the metal electrode, the electrolyte solution can be retained in water without causing corrosion even if the conventional clip on which the metal electrode is mounted is used, and the cleaning is facilitated. You can

[Brief description of drawings]

FIG. 1 is a perspective view showing the configuration of an embodiment of a clip for a limb electrode of the present invention.

FIG. 2 is a rear perspective view showing the configuration of the electrode terminal of FIG.

FIG. 3 is an exploded perspective view of essential parts showing the configuration of another embodiment of the present invention.

FIG. 4 is a side view of essential parts showing the configuration of another embodiment of the present invention.

5 is a rear perspective view showing the configuration of the electrode terminal of FIG.

FIG. 6 is a perspective view showing a configuration of an example of a conventional limb electrode clip.

[Explanation of symbols]

3 Spindle 4, 5 Grip 6, 7 Clamp 8 Metal electrode 11 Electrode terminal (electrode) 12 Groove

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location 7638-4C A61B 5/04 300 M

Claims (2)

[Scope of utility model registration request] 1. A pair of pairs, which are rotatably connected to each other via a support shaft, have gripping portions on the base end side of the support shaft, and electrodes are mounted on one of the front end sides of the support shaft. In the clip for extremity electrodes, which comprises the sandwiching part, the electrode is made of conductive rubber, and a groove is formed on a surface of the conductive rubber that contacts the extremities. 2. The clip for a limb electrode according to claim 1, wherein the conductive rubber is held by a metal electrode attached to one of the pair of holding portions.