JPH0156774B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a device for suspending an inductive electrode for a living body, and particularly for a portable electrocardiograph device, which is attached to a movable frame on which an electrocardiograph is mounted. This invention relates to a biological induction electrode hanging device.

"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, with regard to bioelectricity generated in the heart, abnormalities in the heart are diagnosed by detecting weak currents induced on the skin of a living body using an external electrocardiograph. And this electrocardiograph
In order to electrically connect the input section to the living body, electrodes must be brought into close contact with the surface of the skin.

Generally, in order to detect abnormalities in a patient's heart using an electrocardiograph, the patient M is placed lying down on an examination table 1 or 2 installed in a hospital room, as shown in Figure 1. The movable frame 3 on which the meter 4 is mounted is transported to the vicinity of the subject M. A bracket 5 is bored at one end of the movable frame 3, and a living body induction electrode 18 is suspended from the bracket 5 in close contact with the skin surface of the subject M to derive a weak current from the heart. A hanging device A is attached.

This hanging device A is equipped with devices such as a strut 8, a swinging arm 10, and a relay head 11, and these devices are used to tightly attach the biological induction electrode 18 to an appropriate position on the skin surface of the subject M. The weak electrical current from the heart is recorded on an electrocardiograph.

"Problems to be Solved by the Invention" By the way, the hanging device A can be freely moved to any position and the biological induction electrode can be brought into close contact with the appropriate position on the skin surface of the subject M. .

Then, in order to move it to an appropriate position on the skin surface of the subject M, as shown in FIG. Move by pushing or pushing. However, since the end of the support column 8 of the hanging device is fixed to the bracket 5 which projects from the movable frame 3 via the joint 7', it is often damaged due to the pulling or pressing force of the hand. It may be damaged,
There was a problem in that it was inconvenient to record electrocardiograms.

"Means for Solving the Problems" Therefore, this invention was made by focusing on the above-mentioned problems. The device is an inductive electrode suspension device for living body for extending and suspending the electrode 18 at a desired position. and a joint 7 which is integrally connected to the upper end of this rotation shaft 6, and which is rotatable about its own central axis with respect to this joint 7, and when in a vertical state, with respect to said rotation shaft 6. The joint 7 is in an eccentric state and can be lowered to a desired angle as necessary.
A column 8 whose lower end is supported by
The base end is pivotally supported to be able to rise and fall freely with respect to the upper end of the
A relay head 1 of the electrode cord 12 is attached to the tip end.
It is an object of the present invention to solve the above-mentioned problems by providing a living body induction electrode hanging device having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10 having a swing arm 10.

``Example'' Hereinafter, how the configuration of the present invention is actually embodied will be explained with reference to the drawings, together with its operation. FIG. 1 is an overall perspective view showing the state of use of an electrocardiograph induction electrode according to an embodiment of the present invention,
In the figure, reference numerals 1 and 2 are examination tables on which a subject M is lying down, and a movable frame 3 on which an electrocardiograph 4 is mounted is positioned between the examination tables 1 and 2.

A bracket 5 is provided protruding from one end of the movable frame 3, and a rotation shaft 6 is pivotally supported on the bracket 5 so as to be rotatable around a vertical axis. This rotation axis 6
A joint 7 is integrally connected to the upper end of the .

The detailed structure of this joint 7 will be described later. The lower end of a column 8 is supported by this joint 7, and this column 8 is rotatable around its own central axis, and is eccentric to the rotation axis 6 when in a vertical position. , and can be lowered to a desired angle if necessary.

One end of an undulating joint 9 is connected to the tip of the column 8, and the base end of a swinging arm 10 is pivoted to the other end of the undulating joint 9 so as to be able to rise and fall freely with respect to the upper end of the column 8. ing. A relay head 11 is fixedly installed at the tip of the swinging arm 10, and a plurality of electrode guide cords 18a are suspended from a plurality of through holes 17 formed in the relay head 11. A biological induction electrode 1 is attached to one end of each cord 18a.
8 is installed. Reference numeral 12 denotes an inductive electrode cord that guides the weak current derived by the inductive electrode 18 to the electrocardiograph 4, and is extended along the column 8 and the swinging arm 10.

Numerals 13, 14, 15, and 16 are fasteners for fixing the induction electrode cord 12 to the support column 8 and the swinging arm 10. Reference numeral 19 denotes a handle for rotating the column 8 about its own central axis relative to the joint 7, and for moving the swinging arm 10 freely up and down relative to the column 8.

A bracket 5 protruding from the movable frame 3
A joint 7 connects a rotating shaft 6 that is supported by a support column 8 that can be lowered to a desired angle.
The structure of will be explained with reference to FIGS. 2, 3, 4, and 5. In the figure, reference numeral 20 denotes the base of the joint 7 on which the rotation shaft 6 is integrally installed, and a crank 21 is integrally formed at the upper end of this base 20, as shown in FIG. There is. this crank 2
As shown in FIG. 4, a circular eccentric block 22 is protruded from the top surface of the
The outer circumferential surface thereof is a wave-shaped surface 23, and slits 24 and 25 are further carved therein.

Locking portions 27 and 28 of an arc-shaped ball guide plate 26 are fitted and locked in the slits 24 and 25, and the ball guide plate 26 covers the corrugated surface 24 on the outer peripheral surface of the eccentric block 22. . This ball guide plate 26
has a plurality of ball engagement holes 29, 29 in the vertical direction.
a, 29b, 29c are drilled, and the ball guide plate 2
6 covers the wavy surface 23 of the eccentric block 22, the engagement hole 29a of the ball guide plate 26 is engaged with the recess 23a of the wavy surface 23 of the eccentric block 22, and the engagement hole 29b is engaged with the recess 23b. The holes 29c match the recesses 23c, respectively.

30 is a block cover that covers the eccentric block 22. When the block cover 30 covers the eccentric block 22 as shown in FIG.
The eccentric bottomed cylindrical portion 31 protruding vertically from its upper end is at an eccentric position with respect to the rotation shaft 6, and at the same time, as shown in FIG. 37 and eccentric block 22
It is rotatable about a pivot pin 39 that is passed through a pivot pin hole 38 that is bored in the pivot pin hole 38 .

Further, the block cover 30 is protruded with a female threaded through cylinder part 32 having an internal male thread, and a ball 33 is fitted into this female threaded through cylinder part 32. comes into contact with the ball engagement hole 29a of the guide plate 26,
Its tip protrudes from the engagement hole 29a and engages with the recess 23a of the corrugated surface 23 of the eccentric block 22, and the other end protrudes from the engagement hole 29a.
In this state, the elastic spring 34 is
2, the resilient spring 34 engages with the other end of the ball 33. Then, when the thumb screw 35 having the male threaded portion 36 is screwed into the female threaded through-cylindrical portion 32, the resilient spring 34 is pressed. The pressed elastic spring 34 pushes the ball 33 into the recess 23 of the corrugated surface 23 of the eccentric block 22 through the ball engaging hole 29a.
It is brought into contact with a. When the ball 33 comes into contact with the recess 23a of the corrugated surface 23 due to the pressing force of the elastic spring 34, the block cover 30 is fixed to the eccentric block 22 by the ball 33. When the ball 33 comes into contact with the recess 23a of the corrugated surface 23, the support column 8 is on the vertical axis with respect to the movable frame 3, as shown in FIG.

Further, in order to lower the support column 8 to a desired angle, the block cover 30 may be rotated downward.
To do this, loosen the threaded thumbscrew 35, and the resilient spring 34 and ball 33 will become free from each other. At this stage, grasp the block cover 30 and rotate it downward. , the ball 33 slides from the ball engagement hole 29a on the outer surface of the ball guide plate 26 and enters the ball engagement hole 29a.
b or 29c and fit. Then, when the thumbscrew 35 is tightened at that position, one end of the ball 33 is inserted into the recesses 23b, 2 of the corrugated surface 23 of the eccentric block 22 through the ball engaging hole 29b or 29c.
3c, and the block cover 30 is fixed to the eccentric block 22. When the ball 33 comes into contact with the recesses 23b and 23c of the corrugated surface 23, the support column 8 is brought down from a position perpendicular to the movable frame 3.

The collapse of this support 8 means that the swinging arm 10 is extended toward the patient M as shown in FIG. 1, and as a result, the examination table 1 on which the patient M is lying is , 2 are apart from the movable frame 3, the induction electrode 18 can be brought into close contact with the skin surface of the subject M. Numerals 40 and 40' are stoppers that prevent the pivot pin 39 from coming out of the pivot pin holes 37 and 38.

Next, to explain the operation of the living body induction electrode suspension device configured as above, first, as shown in FIG. The movable underframe 3 on which is mounted is placed.
Next, as shown in FIG. 5, the support 8 is held and the induction electrode 18 is brought into close contact with an appropriate position on the skin surface of the subject M. In this case, the support 8 is moved to move the movable frame 3. However, since it is rotatable around its own central axis with respect to the joint 7, and the support 8 is provided in an eccentric state with respect to the rotation axis 6 when it is in a vertical state, it can be moved by grasping the support 8. As a result, even if a large force is applied to the support column 8, the force is dispersed as shown by the arrow, and the support column 8 will not break. In this way, the induction electrode 18 is brought into contact with an appropriate position on the skin surface of the subject M, and a weak current is led to the electrocardiograph 4 from the skin surface of the living body.

"Effects of the Present Invention" As explained above, according to the present invention, a rotating shaft is provided which is rotatably supported around a vertical axis with respect to a movable frame, and the upper end of this rotating shaft is A joint is integrally connected, and the joint is rotatable about its own central axis relative to the joint, and its lower end is supported by the joint so that it is eccentric to the rotation axis when it is in a vertical state. Since the struts are provided, even if an excessive load is applied to the struts, the force is dispersed, and as a result, there is no risk of the struts breaking, which has the advantage that there is no problem in recording bioelectricity generated in the living body.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view showing the state of use of an electrocardiograph electrode suspension device according to an embodiment of the present invention, Fig. 2 is a side view of the main part of Fig. 1, and Fig. 3 is a perspective view of the joint part. Figure 4 is an exploded perspective view of the joint, Figure 5 is the first
FIG. 6 is a perspective view of the main part of a conventional electrocardiograph electrode hanging device. 3... Moving frame, 4... Electrocardiograph, 6... Rotating shaft, 7... Joint, 8... Support column, 10... Swinging arm,
11... Relay head, 12... Biological induction electrode cord, 18... Induction electrode.

Claims (1)

[Claims] 1 A living body induction electrode hanging device for extending a living body induction electrode cord 12 of an electrocardiograph 4 mounted on a movable frame 3 and suspending an electrode 18 at a desired position; A rotation shaft 6 rotatably supported on the underframe 3 around a vertical axis; a joint 7 integrally connected to the upper end of the rotation shaft 6;
It is rotatable about its own central axis with respect to this joint 7, and when it is in a vertical state, it is in an eccentric state with respect to the rotation axis 6, and can be lowered to a desired angle as necessary. There is a column 8 whose lower end is supported by the joint 7, and a proximal end pivoted to the upper end of the column 8 so as to be able to rise and fall freely, and a relay head 11 of a biological induction electrode cord 12 is attached to the distal end. A biological induction electrode hanging device having a swinging arm 10.