CN102475544A - Electrocardiogram electrode clamp - Google Patents

Abstract

An electrocardiogram electrode clamp comprises an upper clamp plate, a lower clamp plate, a rotating shaft, a torsion spring, an electrode conducting strip and a lead, wherein the upper clamp plate and the lower clamp plate are rotatably arranged on the rotating shaft, the parts of the upper clamp plate and the lower clamp plate, which are positioned behind the rotating shaft, are grabbing parts, and the parts of the upper clamp plate and the lower clamp plate, which are positioned in front of the rotating shaft, are clamping parts; the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected with the pinching part of the upper clamping plate, and the other end of the torsion spring is connected with the pinching part of the lower clamping plate; the method is characterized in that: the electrode conducting strip is arranged between the clamping part of the upper clamping plate and the clamping part of the lower clamping plate, the electrode conducting strip is arranged on the clamping part of the upper clamping plate or the lower clamping plate through a conductive elastic body, and the conductive elastic body is electrically connected with the lead. Therefore, the electrode conducting strip of the electrocardiogram electrode clamp can form good contact with limb skins of examinees with different shapes, reduce contact impedance and ensure the electrocardiogram tracing quality and diagnosis accuracy.

Description

An electrocardiogram electrode clip

technical field

The invention belongs to the technical field of medical devices, and more specifically relates to an electrocardiogram electrode clip.

Background technique

At present, electrocardiogram is a common method for clinical diagnosis of heart disease, and electrocardiogram plays an important role in the diagnosis of cardiovascular disease. When making an electrocardiogram, it is necessary to clamp the electrocardiogram electrode clips on human limbs (such as wrists and ankles), and make the electrode conductive sheets of the electrocardiogram electrode clips form good contact with the skin surface of the human body. The weak current is induced on the surface of the skin, and the weak current is sent to the electrocardiograph for amplification and rote, so as to form the human body's electrocardiographic signal, and the cardiovascular disease of the human can be analyzed and diagnosed according to these electrocardiographic signals.

When the electrocardiogram electrode clip is clamped on a human limb, there is a certain contact resistance between the electrode conductive sheet of the electrocardiogram electrode clip and the skin surface, and the contact impedance between the electrode conductive sheet and human skin is directly related to the electrocardiogram machine. The strength of the ECG signal directly affects the input amplitude of the ECG signal and the size of the noise, and finally affects the quality of the ECG tracing and the accuracy of diagnosis.

Existing electrocardiogram electrode clamp generally comprises upper splint, lower splint, rotating shaft, torsion spring, electrode conductive sheet and wire, and upper splint and lower splint are mutually rotatably installed on the rotating shaft, and the part of upper splint and lower splint at the rear of rotating shaft is The gripping part, the part of the upper splint and the lower splint in front of the rotating shaft is the clamping part; the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected with the gripping part of the upper splint, and the other end of the torsion spring is connected with the gripping part of the lower splint. The pinches are connected, and under the action of the elastic force of the torsion spring, the clamping part of the upper splint and the clamping part of the lower splint are clamped or have a tendency to clamp each other; the electrode conductive sheet is installed on the clamping part of the upper splint or the lower splint On the top, the electrode conductive sheet is electromechanically connected with the electrocardiogram through wires.

In the existing electrocardiogram electrode holder, since the radian of the clamping portion of the upper splint and the radian of the clamping portion of the lower splint are fixed, when the electrode conductive sheet is installed on the clamping of one of the upper splint and the lower splint, When it is placed on the upper part, the distance between the electrode conductive sheet and the clamping part of the other splint is also fixed, and human limbs are different in size, fat and thin, and differences between adults and babies. When carrying out electrocardiogram examination, the existing electrocardiogram electrode clip just can't clamp the limbs of the examinee well, like this, the electrode conductive piece on the splint just can't form good contact with the limb skin of the examinee, thereby causes the contact impedance to be too high. Large, the input amplitude of the ECG signal is small, the noise is large, and the output waveform is deformed, so it cannot accurately record the changes of the ECG of the examinee, which affects the quality of the ECG tracing and the accuracy of diagnosis.

Contents of the invention

The technical problem to be solved by the present invention is to provide an electrocardiogram electrode clip, the electrode conductive sheet of the electrocardiogram electrode clip can form good contact with the skin of the limbs of the examinees of different shapes, thereby reducing the contact impedance and ensuring the tracing of the electrocardiogram quality and diagnostic accuracy.

In order to solve the problems of the technologies described above, the technical scheme adopted in the present invention is as follows:

An electrocardiogram electrode clamp, comprising an upper splint, a lower splint, a rotating shaft, a torsion spring, an electrode conductive sheet and a wire, the upper splint and the lower splint are mutually rotatably installed on the rotating shaft, and the part of the upper splint and the lower splint behind the rotating shaft is a grip The pinch part, the part of the upper splint and the lower splint in front of the rotating shaft is the clamping part; the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected with the gripping part of the upper splint, and the other end of the torsion spring is connected with the gripping part of the lower splint The parts are connected; it is characterized in that: the above-mentioned electrode conductive sheet is arranged between the clamping part of the upper splint and the clamping part of the lower splint, and the above-mentioned electrode conductive sheet is installed on the clamping part of the upper splint or the lower splint through a conductive elastic body Above, the above-mentioned conductive elastic body is electrically connected with the wire.

Since the electrode conductive sheet is arranged between the clamping part of the upper splint and the clamping part of the lower splint, the electrode conductive sheet is installed on the clamping part of one of the upper splint and the lower splint through a conductive elastic body, so the electrode conducts electricity The distance between the sheet and the clamping part of the other splint changes with the deformation of the conductive elastic body, so that the electrode conductive sheet can form good contact with the skin of the examinee's limbs of different shapes, reduce the contact impedance, and ensure At the same time, because the conductive elastomer is electrically connected with the wire, the electrode conductive sheet is electromechanically connected with the electrocardiogram through the conductive elastomer and the wire, thereby realizing the transmission of the electrocardiogram signal.

As a preferred solution of the present invention, the conductive elastic body preferably adopts a return spring, one end of the return spring is vertically fixedly installed on the clamping portion of the upper clamping plate or the lower clamping plate, and the electrode conductive sheet is fixedly installed on the clamping portion of the return spring. on the other end. The above-mentioned return spring can not only expand and contract, but also conduct electricity.

The shape of the electrode conductive sheet preferably matches the shape of the clamping part of the splint connected with the conductive elastic body. In this way, the electrode conductive sheet can form better contact with the skin of the limbs of the examinee, further reducing the contact impedance, and further ensuring the quality of the electrocardiogram and the accuracy of diagnosis.

The beneficial effect of the present invention compared with the prior art is: since the electrode conductive sheet of the electrocardiogram electrode clip is arranged between the clamping portion of the upper splint and the clamping portion of the lower splint, the electrode conductive sheet is installed on the upper splint through a conductive elastic body On the clamping part of one clamping plate in the lower clamping plate, the conductive elastic body is electrically connected with the wire; therefore, the distance between the electrode conductive sheet and the clamping part of the other clamping plate changes with the deformation of the conductive elastic body, so that the electrode The conductive sheet can form good contact with the skin of the limbs of the examinees with different shapes, reduce the contact impedance, and ensure the quality of electrocardiogram tracing and the accuracy of diagnosis.

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Accompanying drawing is the structural representation of preferred embodiment of the present invention.

Detailed ways

As shown in the accompanying drawings, the electrocardiogram electrode clip in this preferred embodiment includes an upper splint 1, a lower splint 2, a rotating shaft 3, a torsion spring 4, an electrode conductive sheet 5 and a lead 6;

The upper splint 1 and the lower splint 2 are mutually rotatably mounted on the rotating shaft 3, the part of the upper splint 1 behind the rotating shaft is the grasping part 11, the part of the upper splint 1 in front of the rotating shaft is the clamping part 12, and the lower splint 2 is on the rotating shaft The rear part is the grasping part 21, and the part of the lower splint 2 in front of the rotating shaft is the clamping part 22;

The torsion spring 4 is sleeved on the rotating shaft 3, and one end of the torsion spring 4 is connected with the grasping portion 11 of the upper splint 1, and the other end of the torsion spring 4 is connected with the grasping portion 21 of the lower splint 2. Under the action, the clamping portion 12 of the upper splint 1 and the clamping portion 22 of the lower splint 2 are clamped or have a tendency to clamp each other;

The electrode conductive sheet 5 is arranged between the clamping portion 12 of the upper splint 1 and the clamping portion 22 of the lower splint 2, and the above-mentioned electrode conductive sheet 5 is installed on the clamping portion 12 of the upper splint 1 through a conductive elastic body. The shape of the conductive sheet 5 matches the shape of the clamping portion 12 of the upper splint 1 connected to the conductive elastic body. The above-mentioned conductive elastic body adopts a return spring 7, and one end of the return spring 7 is vertically fixed on the clip of the upper splint 1. On the holding part 12, the electrode conductive sheet 5 is fixedly installed on the other end of the return spring 7, and the return spring 7 is electrically connected with the wire 6.

When making an electrocardiogram, the wire 6 of the electrocardiogram electrode clip is electromechanically connected with the electrocardiogram, so that the electrode conductive sheet 5 is electromechanically connected with the electrocardiogram through the return spring 7 and the wire 6, thereby realizing the transmission of the electrocardiogram signal; then, the electrocardiogram electrode clip Clamped on the limb of the examinee, since the electrode conductive sheet of the electrocardiogram electrode clip is arranged between the clamping part 12 of the upper splint 1 and the clamping part 22 of the lower splint 2, the electrode conductive sheet 5 is installed on the On the clamping portion 12 of the upper splint 1, so the electrode conductive sheet of the electrocardiogram electrode clamp can form good contact with the skin of the limbs of the inspected persons of different shapes through the elastic force of the return spring 7, reduce the contact impedance, and ensure ECG tracing quality and diagnostic accuracy.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the implementation scope of the present invention; that is, all equivalent transformations made according to the scope of the claims of the present invention are covered by the scope of the claims of the present invention.

Claims (3)

1. An electrocardiogram electrode clamp, comprising an upper splint, a lower splint, a rotating shaft, a torsion spring, an electrode conductive sheet and a wire, the upper splint and the lower splint are rotatably installed on the rotating shaft, and the upper splint and the lower splint are at the rear of the rotating shaft The part of the upper splint and the lower splint in front of the rotating shaft is the clamping part; the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected to the gripping portion of the upper splint, and the other end of the torsion spring is connected to the lower splint. The grasping and pinching parts are connected; it is characterized in that the above-mentioned electrode conductive sheet is arranged between the clamping part of the upper splint and the clamping part of the lower splint, and the above-mentioned electrode conductive sheet is installed on the clamp of the upper splint or the lower splint through a conductive elastic body. On the holding part, the above-mentioned conductive elastic body is electrically connected with the wire. 2. The electrocardiogram electrode clip according to claim 1, characterized in that: the conductive elastic body adopts a back-moving spring, and one end of the back-moving spring is vertically fixedly installed on the clamping portion of the upper splint or the lower splint, and the electrode conductive sheet Fixedly installed on the other end of the return spring. 3 . The electrocardiogram electrode clip according to claim 1 , wherein the shape of the electrode conductive sheet matches the shape of the clamping portion of the splint connected with the conductive elastic body. 4 .

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