JPH04241834A - Electrocardiograph - Google Patents

Abstract

PURPOSE:To eliminate such facts as an electrode is detached in the course of inspection, a pain is given to a person to be examined due to too strong suction, and a macula is left on the skin by applying prescribed negative pressure to the inside of a cavity of a suction electrode for guiding an electrocardiogram from a chest. CONSTITUTION:At the time of starting an inspection, an inspection engineer applies negative pressure to a pump by operating an electrocardiograph main body 1. Thus, the negative pressure is applied to the inside of a cavity of a connected electrode 10 through an air tube 5, a branching part 6, a branching tube 8, and a branching air tube connecting part 13, and the electrode can be installed to the person. The inspection engineer installs six pieces of suction electrodes one by one piece. A pressure sensor 3 senses the pressure in the air tube 5, and in accordance with its output, a pressure controller of the electrocardiograph main body 1 controls the built-in pump of the electrocardiograph main body, by which pressure in the air tube 5 is kept constant, and the electrode can be sucked to the chest of the person to be examined by moderate suction force.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrocardiograph, and more particularly to an electrocardiograph that facilitates attachment and detachment of adsorption electrodes to a subject.

0002

[Prior Art] A standard 12-lead electrocardiogram test is performed by attaching electrodes to both hands and feet of the subject, and further attaching six electrodes to the chest to record 12 electrocardiogram waveforms. There are many things. Scissor electrodes are usually used on both hands and feet, and suction electrodes are used on the chest. Examples of scissor electrodes and adsorption electrodes are shown in FIGS. 3A and 3B. These scissor electrodes are crimped and fixed on both wrists and ankles by the force of a spring. Further, the suction electrode is fixed to the chest in the same manner as a suction cup by pressing the suction rubber with a finger, bringing the electrode into close contact with the skin of the chest, and then removing the finger from the suction rubber.

[0003] A laboratory technician or a nurse attaches these electrodes to the subject before the test, records a standard 12-lead electrocardiogram, and then removes the electrodes to complete the test.

0004

[Problems to be Solved by the Invention] In electrocardiogram testing using a conventional electrocardiograph, especially when performed by a nurse who is not accustomed to conducting the test, the suction strength is insufficient when removing the suction cup electrode that guides the electrocardiogram from the chest. Difficult to remove if relatively strong, 6
It takes time to remove individual electrodes, and if the test subject's skin is pulled forcibly, it may cause discomfort to the test subject or leave bruises on the skin. Also, when attaching the electrode, the strength of the suction force may not be constant; if it is too strong, it may cause pain to the subject or leave bruises on the skin; There was a problem that air could enter between the electrode and the skin, causing the electrode to come off during the test. Especially in the case of elderly people, their skin is not smooth, so it is difficult for them to be absorbed, and the test takes a long time because they have to reapply it many times.

[0005]

[Means for Solving the Problems] The electrocardiograph of the present invention includes a pump for creating negative pressure and positive pressure in the cavity of the adsorption electrode;
An air tube for transmitting negative pressure and positive pressure generated by the pump to the adsorption electrode, a pressure sensor for sensing air pressure in the air tube, and a pressure control for controlling the pump based on the output of the pressure center. Prepare,
The suction electrode has a structure that allows negative pressure and positive pressure to be created in the cavity of the suction electrode by connecting the air tube.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention.
The electrocardiograph and the induction cord in the diagram (a) of FIG.
, an air tube 5, a branch part 6, a branch cord 7,
Consists of a branch air tube 8 and an electrode tip 9,
The adsorption electrode shown in FIG. 1 (b) includes an electrode 10 and a handle 11.
, an electrode chip connection section 12 , and a branch air tube connection section 13 . During inspection, the electrode tip 9 is connected to the electrode tip connection part 12 and the branch air tube 8 is connected to the branch air tube connection part 13 for use.

FIG. 2 shows a configuration diagram of the main body of the electrocardiograph. At the start of the test, the test technician first operates the electrocardiograph main body 1 and operates the pump to apply negative pressure. As a result, the electrode 10 is connected via the air tube 5, the branch part 6, the branch air tube 8, and the branch air tube connection part 13.
Negative pressure is applied inside the cavity, allowing electrodes to be attached to the subject. The laboratory technician attaches six suction electrodes one by one. The pressure sensor 3 senses the pressure inside the air tube 5, and according to its output, the pressure controller in the electrocardiograph main body 1 controls the built-in pump in the electrocardiograph main body 1, so that the pressure inside the air tube 5 is kept constant. The electrode can be attached to the subject's chest with moderate adsorption force.

Conventional scissor electrodes are attached to both hands and both feet, and the recorder is activated by operating the electrocardiograph main body 1.
A two-lead electrocardiogram is recorded. After the recording is completed, the test technician operates the electrocardiograph main body 1 and the pump is activated to apply positive pressure. Since positive pressure is transmitted into the electrode cavity through the same route as when negative pressure is applied, the suction force is lost and the suction electrode detaches from the skin.

0010

[Effects of the Invention] As explained above, the present invention makes it possible to apply a constant negative pressure inside the cavity to the suction electrode that induces electrocardiograms from the chest and to make it suction to the skin, so that the electrode does not come off during the examination. The suction is so strong that it does not cause pain to the subject or leave bruises on the skin, and it also makes it possible to apply positive pressure inside the electrode cavity, so the suction electrode can be removed after the test is completed. It has the effect of being able to

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the configuration of an embodiment of the present invention.

[Figure 2]
A block diagram showing the configuration of the electrocardiograph main body 1 of this embodiment

[Figure 3] An explanatory diagram showing an example of a conventional scissor electrode and an adsorption electrode

[Explanation of symbols]

1　　　　Electrocardiograph body 2 Connector 3 Pump 4 Guidance code 5 Air tube 6 Branch part 7 Branch code 8 Branch air tube 9 Electrode tip 10 Electrode 11 Handle 12　Electrode tip connection part 13 Branch air tube connection part

Claims (1)

[Claims] Claim 1: In an electrocardiograph that records an electrocardiogram induced from an electrode attached to a living body, negative pressure or positive pressure is applied to the cavity of an adsorption electrode that adheres to the skin of a subject by the action of a suction cup. an air tube that conveys negative pressure or positive pressure generated by the pump to an adsorption electrode, a pressure sensor that senses air pressure in the air tube, and a pressure controller that controls the pump based on the output of the pressure sensor. An electrocardiograph, characterized in that the suction electrode has a structure in which negative pressure or positive pressure is created in the cavity of the suction electrode by connecting the air tube.