CARDIO CHAIR FOR RECORDING 1-LEAD ECG

Abstract

The technology relates to medical equipment, namely, to a medical chair for recording an electrocardiogram in the first lead («1-lead»), and can be used in medical institutions, pharmacies, public organizations and at home.

Chair for measuring electrocardiogram in the first lead containing: two dry capacitive contact electrodes, each is attached to the appropriate armrest; wherein electrodes are made in the form of handles and configured in such a way as to enable the user to hold onto them with their palms in a sitting position; wherein electrodes are adapted to connect them to the lead cable for connection with the electrocardiograph, wherein electrodes are isolated from the chair frame through a dielectric spacer, wherein the electrocardiograph holder is attached to the chair so that the electrocardiograph secured in the holder is at user eye level.

Claims

1. Chair for measuring electrocardiogram in the first lead containing: two dry capacitive contact electrodes, each is attached to the appropriate armrest; wherein electrodes are made in the form of handles and configured in such a way as to enable the user to hold onto them with their palms in a sitting position; wherein electrodes are adapted to connect them to the lead cable for connection with the electrocardiograph, wherein electrodes are isolated from the chair frame through a dielectric spacer, wherein the electrocardiograph holder is attached to the chair so that the electrocardiograph secured in the holder is at user eye level.

2. The chair of claim 1, wherein the electrodes are cylinder shaped.

3. The chair of claim 1, wherein the electrodes are made in the form of stainless steel handles.

4. The chair of claim 1, wherein the chair consists of a frame, seat, seat back and two armrests.

5. The chair of claim 4, wherein the frame is at least partially made of hollow tubes.

6. The chair of claim 5, wherein the lead cable wires are hidden in the frame tubes.

7. The chair of claim 4, wherein the frame is metal.

8. The chair of claim 7, wherein the metal frame has a terminal for connecting the electrocardiograph ground conductor.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0044] FIG. 1 shows a front view of an example of the proposed technical solution.

[0045] FIG. 2 shows a top view of an example of the proposed technical solution.

[0046] FIG. 3 shows an exemplary design of the electrocardiograph holder.

DETAILED DESCRIPTION

[0047] FIG. 1 illustrating an example, non-limiting embodiment of the proposed chair for measuring the ECG in the 1-lead. The chair consists of a frame (1), a seat (2), a seat back (3) and wide armrests (4), connected by assembly operations, for example, welding, gluing, riveting and others.

[0048] The frame (1) is made of a painted metal tube with a diameter of 25-32 mm and a wall thickness of 2 mm. The seat (2), the seat back (3) and armrests (4), for example, are made of chipboard, plywood or HPL plastic with a thickness of 8-25 mm. The armrests contain dry capacitive contact electrodes (5). The electrodes (5) and armrests (4) can be interconnected by one of the following assembly operations: for example, welding, gluing, as well as threaded, pinned and other connections, including combined and movable. The dry capacitive contact electrodes (5) can be made of stainless steel and have a cylindrical shape. If the electrodes are made of metal, they must be isolated from the chair frame through a dielectric spacer. The spacer can be made of any dielectric material (plastic (ABS, PVC, polyethylene), ceramics, rubber, silicone).

[0049] The advantage of dry contact electrodes is the absence of additional preparatory manipulations with them before measuring the ECG, as well as the absence of need for additional consumables, for example, electrically conductive gels and saline solutions. However, to obtain reliable ECG results using dry contact electrodes, it is necessary to provide a large contact area with the surface of the human body. The Figures show that the maximum contact area is achieved due to the implementation of the electrodes in the form of handles, which the patient can naturally, without additional effort and tension, grasp with his/her palms. FIG. 1 shows the electrodes that are made in the form of handles installed perpendicular to the armrests, and are configured in such a way that when the arms are placed on the armrests of the proposed chair, the patient can grasp the contact electrodes (5) with his/her palms, i.e. hold onto the electrodes with his/her hands, thus establishing contact of the body with the electrodes directly at the point at which it is necessary to measure the ECG in the 1-lead. At the same time, this position of the hands is the most convenient for the user and allows maintaining complete relaxation of the body, including the arms and palms of the user, due to its ergonomic position in the chair and, accordingly, reduce hand tremor for ECG recording.

[0050] The electrodes are suitable for connection with the lead cable wire. For example, when using metal handle electrodes, a brass petal can be attached from the inside by electric resistance welding, after which a lead cable is soldered to the petal. The handle electrode is a massive metal part, and it is technologically difficult to solder the lead cable wire without spoiling the appearance of the handle, since the metal effectively removes heat from the place of heating. Therefore, for example, a petal is attached by argon or electric resistance welding, and after that the cable is soldered to it.

[0051] At least a part of the chair frame can be made of hollow tubes and the wires of the cable for the discharge of the electrodes can be hidden in them in order to prevent them from being damaged by careless use. The wires are required to connect to the electrocardiograph and allow it to be placed in any convenient place for independent measurement, for example, on a pedestal next to the chair, or in a holder at the user's eye level.

[0052] The metal frame of the chair has a terminal for connecting the ground conductor of the electrocardiograph (not shown in the Figure), which reduces electrical crosstalk on the lead cable.

[0053] FIG. 2 shows a tube (6) for fastening the holder (7) of the electrocardiograph (8), a bent piece of a metal painted tube with a diameter of 25-32 mm, a wall thickness of 2 mm. The tube can be attached to the chair frame, for example by welding.

[0054] FIG. 3 shows an electrocardiograph holder (7)—an assembly unit consisting of a holder base (9) made of painted sheet metal, a mounting plate (10), for example, made of plastic, fixed through brass posts, and a lock (11). Any cardiograph suitable for recording a 1-lead electrocardiogram can be used.

[0055] To use the chair, an electrocardiograph (8) capable of recording 1-lead ECG is connected to the electrodes (5) through the cable wires (hidden inside the frame). The electrograph can be located in any convenient place for the user, for example, on a table or pedestal next to the proposed chair. According to one of the embodiments of the invention, the cardiograph is positioned at the level of the patient's eyes by fixing it in a holder (7), which is attached to the chair (as shown in FIG. 2 and FIG. 3). The user sits in the chair, independently starts the process of recording an electrocardiogram on an electrocardiograph, puts his/her arms on the armrests (4), takes the electrodes (5) by hands, takes the most comfortable body position, relaxes, waits for the end of the recording. The ergonomic shape of the device for recording the ECG in the 1-lead and the configuration of the handle electrodes make it possible to take an ECG with a minimum level of interference caused by the electrical activity of the arm muscles.

[0056] The proposed medical chair allows a seated patient to place his/her hands, including palms, in a natural position, but with maximum contact with the electrodes, thereby providing a high degree of reliability of the ECG results in the 1-lead. The results of the medical ECG in the 1-lead can diagnose arrhythmias, coronary heart disease, conduction abnormalities, atrial fibrillation, and other heart diseases.

[0057] The chair, containing the above-described handle electrodes and a cardiograph, makes it possible to record a resting electrocardiogram in the 1-lead while sitting in the most comfortable and comfortable body position completely independently by the user (patient).

[0058] The given specific examples of the implementation of the technical solution do not limit the claimed scope of claims and a specialist will see that other variants of the proposed medical chair can be executed within the scope of the independent claim.