Anti-interference connecting device for ECG lead wire

Abstract

The invention belongs to the technical field of ECG (electrocardiogram) monitor lead wires, and particularly relates to an anti-interference connecting device for ECG lead wires, which comprises a female seat, a bayonet socket, a plug end and an electrode plate, and is characterized in that the bayonet socket is fixedly connected with the right side of the female seat; according to the invention, after the electrode plate and the female seat are plugged and fixed through the first plugging head and the first contact piece, and the plugging seat and the plugging end are plugged and fixed through the second contact piece and the second plugging head, the first anti-interference layer and the second anti-interference layer are respectively fixed outside the joint; the first anti-interference layer and the second anti-interference layer are composed of shielding layers and anti-static layers. The shielding layer can effectively shield electromagnetic interference, the anti-static layer reduces generation and accumulation of static electricity, the anti-static coating can reduce surface resistance, the static electricity can be rapidly dissipated, the phenomenon that the static electricity interferes with ECG signals is avoided, and therefore the ECG lead wire connecting device has better anti-interference capacity in the using process, and the service life of the ECG lead wire connecting device is prolonged. And the receiving effect of the electrocardiogram signal is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrocardiogram monitor lead wires, in particular to an anti-interference connection device for ECG lead wires. Background Art

[0002] The electrocardiogram (ECG) is a widely used medical test method for recording the heart's electrical activity. ECG lead wires are key components connecting the human body to the ECG machine. Their performance directly affects the quality of ECG signal acquisition. During use, ECG lead wires require a connector to securely connect the signal wires to the electrodes.

[0003] However, the existing connection device still has the following technical problems when used:

[0004] When connected to electrodes, existing ECG lead wires are susceptible to various interference factors. For example, external electromagnetic interference, such as electromagnetic waves generated by surrounding electronic devices and power supply interference, can induce noise signals in the lead wires. This can be superimposed on the ECG signal, causing distortion of the ECG waveform and affecting the doctor's accurate diagnosis of the condition. Furthermore, static interference from human movement and contact noise from poor contact between the lead wire and the skin can interfere with ECG signal acquisition.

[0005] Therefore, an anti-interference connection device for ECG lead wires is proposed to solve the above-mentioned problems. Summary of the Invention

[0006] The object of the present invention is to provide an anti-interference connection device for ECG lead wires to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: an anti-interference connection device for an ECG lead wire, comprising a female socket, a plug socket, a plug end, and an electrode sheet, wherein the plug socket is fixedly connected to the right side of the female socket, the plug end is located at the right end of the plug socket, and the electrode sheet is located at the lower end of the female socket;

[0008] A first plug connector is fixed on the upper side of the electrode sheet, a first plug hole is formed on the lower side of the female socket, a first contact sheet is fixed inside the first plug hole, an external threaded tube is fixedly sleeved on the outside of the first plug connector, an internal threaded tube is fixed to the hole wall of the first plug hole, and the first plug connector is plugged into the first contact sheet;

[0009] A first anti-interference layer is fixed to the outer wall of the female base, and a pressing mechanism is fixed to the front and rear sides of the female base at the upper end of the first anti-interference layer, and the lower side of the first anti-interference layer contacts the upper side of the electrode sheet;

[0010] A second plug hole is formed on the right side of the socket, a second contact piece is fixed inside the second plug hole, a signal line is fixed inside the plug end, a second plug connector is fixed to the left end of the signal line, the second plug connector is fixedly connected to the left end of the plug end, and the left end of the second plug connector is plugged and fixed to the second contact piece;

[0011] A second anti-interference layer is fixed to the right end of the outer wall of the socket through a fixing ring, the right end of the second anti-interference layer is sleeved on the outside of the plug end, and a limiting mechanism is provided on the outside of the second anti-interference layer.

[0012] Preferably, the externally threaded pipe and the internally threaded pipe are adapted to each other and are threadedly connected to each other.

[0013] Preferably, the pressing mechanism includes two fixed blocks, which are respectively fixedly connected to the front and rear sides of the mother seat, and the side walls of the two fixed blocks are slidably connected with threaded rods. The lower ends of the two threaded rods are jointly fixed with a pressing annular plate, and the lower side of the pressing annular plate contacts the upper side of the first anti-interference layer. The rod walls of the two threaded rods are located at the upper ends of the fixed blocks and are threadedly connected with fastening nuts, and the lower sides of the two fastening nuts contact the upper side of the fixed block.

[0014] Preferably, the limiting mechanism includes two annular limiting plates, which are respectively located at the upper and lower ends of the second anti-interference layer. The front and rear sides of the two annular limiting plates are fixed with mounting blocks, and the side walls of the two mounting blocks are provided with mounting holes, and mounting bolts are commonly fixed between the two mounting holes.

[0015] Preferably, evenly arranged anti-slip stripes are fixed to the upper and lower sides of the socket.

[0016] Preferably, a protective tube is fixed to the right end of the plug end, which is located outside the signal line.

[0017] Preferably, the first contact piece and the second contact piece are electrically connected.

[0018] Preferably, the first anti-interference layer and the second anti-interference layer include a shielding layer and an antistatic layer, the shielding layer is an inner layer, and the antistatic layer is located outside the shielding layer.

[0019] Preferably, an insulating layer is fixed between the first plug connector and the external threaded pipe.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] In the present application, after the electrode sheet and the female seat are fixed by plugging together through the first plug connector and the first contact sheet, and the plug socket and the plug end are fixed by plugging together through the second contact sheet and the second plug connector, they are respectively fixed to the outside of the connection by the first anti-interference layer and the second anti-interference layer, and the first anti-interference layer and the second anti-interference layer are composed of a shielding layer and an antistatic layer;

[0022] The shielding layer can effectively shield electromagnetic interference, the antistatic layer reduces the generation and accumulation of static electricity, and the antistatic coating can reduce the surface resistance, so that static electricity can be quickly dissipated, avoiding static electricity interference with ECG signals, thereby making the ECG lead wire connection device have better anti-interference ability during use and increasing the reception effect of electrocardiogram signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram of the top view structure;

[0025] Figure 3 It is a structural diagram of the electrode sheet and the first plug connector;

[0026] Figure 4 Schematic diagram of the structure of the female base, the first contact piece and the internal threaded tube;

[0027] Figure 5 for Figure 1 Schematic diagram of the enlarged structure of part A;

[0028] Figure 6 is a schematic diagram of the matching structure of the second contact piece and the second plug connector;

[0029] Figure 7 for Figure 1 Schematic diagram of the enlarged structure of part B;

[0030] Figure 8 This is a material composition diagram of the first anti-interference layer and the second anti-interference layer.

[0031] In the figure: 1 female socket, 2 socket, 3 plug end, 4 electrode piece, 5 first plug connector, 6 first contact piece, 7 external threaded tube, 8 internal threaded tube, 9 first anti-interference layer, 10 second contact piece, 11 signal line, 12 second plug connector, 13 fixing ring, 14 second anti-interference layer, 15 fixing block, 16 threaded rod, 17 pressing ring plate, 18 fastening nut, 19 ring limit plate, 20 mounting block, 21 mounting bolt, 22 anti-slip stripe, 23 protective tube, 24 shielding layer, 25 antistatic Cen, 26 insulating layer. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0034] Example:

[0035] See also Figure 1-8 , the present invention provides a technical solution:

[0036] An anti-interference connection device for ECG lead wires, comprising a female socket 1, a plug socket 2, a plug end 3, and an electrode sheet 4. The plug socket 2 is fixedly connected to the right side of the female socket 1, the plug end 3 is located at the right end of the plug socket 2, and the electrode sheet 4 is located at the lower end of the female socket 1.

[0037] The female socket 1, the plug socket 2 and the plug end 3 in this application are all made of metal materials, and the connecting device is encapsulated as a whole in a metal shell. The metal shell has good electromagnetic shielding performance and can effectively block external electromagnetic interference. The shell can be made of metal materials such as aluminum and copper, and customized according to the shape and size of the connecting device; the metal shell should be reliably grounded to introduce the interference current induced on the shell into the earth, further improving the shielding effect. At the same time, heat dissipation holes or heat sinks should be set on the shell to solve the heat dissipation problem inside the connecting device while ensuring the shielding performance;

[0038] Rationally plan the layout of circuits and components inside the enclosure to reduce crosstalk and coupling between circuits. For example, separate power lines and signal lines to avoid mutual interference. A layered layout can be used to place different types of circuits and components on different levels and isolate them with partitions.

[0039] Install shock-absorbing and cushioning materials, such as rubber pads and sponges, inside the housing to reduce the impact of external vibration and shock on the components and circuits within the connection device. Vibration and shock can cause loose components and poor circuit contact, generating interference signals. Optimize the housing's structural design to enhance its impact resistance. For example, use reinforcing ribs or a honeycomb structure to increase the housing's strength and rigidity, protecting internal components and circuits from damage.

[0040] A first plug connector 5 is fixed to the upper side of the electrode sheet 4, a first plug hole is opened on the lower side of the female socket 1, a first contact piece 6 is fixed inside the first plug hole, an external threaded tube 7 is fixedly sleeved on the outside of the first plug connector 5, an internal threaded tube 8 is fixed to the hole wall of the first plug hole, and the first plug connector 5 is plugged into the first contact piece 6;

[0041] A first anti-interference layer 9 is fixed to the outer wall of the female base 1. A pressing mechanism is fixed on the front and rear sides of the female base 1 at the upper end of the first anti-interference layer 9. The lower side of the first anti-interference layer 9 contacts the upper side of the electrode sheet 4. The pressing mechanism can protect the first anti-interference layer 9 outside the connection gap between the electrode sheet 4 and the female base 1, thereby increasing the anti-interference capability.

[0042] A second plug hole is provided on the right side of the socket 2. A second contact piece 10 is fixed inside the second plug hole. A signal line 11 is fixed inside the plug end 3. A second plug connector 12 is fixed to the left end of the signal line 11. The second plug connector 12 is fixedly connected to the left end of the plug end 3. The left end of the second plug connector 12 is plugged and fixed to the second contact piece 10.

[0043] A second anti-interference layer 14 is fixed to the right end of the outer wall of the socket 2 through a fixing ring 13. The right end of the second anti-interference layer 14 is sleeved on the outside of the plug end 3. A limiting mechanism is provided on the outside of the second anti-interference layer 14. The second anti-interference layer 14 is fixed to the outside of the connecting gap between the plug end 3 and the socket 2 through the limiting mechanism to increase the anti-interference ability.

[0044] The external threaded tube 7 and the internal threaded tube 8 are adapted to each other and are threadedly connected to each other. The threaded connection effectively replaces the previous clamping connection. Even if they are pulled during use, the electrode sheet 4 and the female base 1 are not easily separated.

[0045] The threaded connection provides a reliable mechanical connection, tightly integrating the electrode sheet 4 with the base 1. Even when the patient is engaged in daily activities or undergoing an examination, the electrode sheet 4 is unlikely to fall off the base 1, even if it is subjected to a certain degree of pulling, vibration, or friction, thereby ensuring the stability and continuity of ECG signal acquisition.

[0046] By rotating and tightening the thread, the electrode sheet 4 and the female base 1 can be tightly fitted together, ensuring good electrical contact between the two. This helps to reduce contact resistance, lower attenuation and interference during signal transmission, thereby improving the quality of the ECG signal and enabling doctors to make more accurate diagnoses based on the collected signals.

[0047] For medical staff or patients themselves, the threaded connection method is relatively simple to operate. When installing, just align the threaded part of the electrode sheet 4 with the threaded hole of the female base 1 and then gently rotate to complete the connection; when disassembling, the electrode sheet 4 can be easily removed by rotating in the opposite direction. This convenience facilitates quick operation when it is necessary to replace the electrode sheet 4, clean or maintain the equipment, thereby improving work efficiency.

[0048] Each time the electrode sheet 4 and the female base 1 are connected via threads, as long as the correct operation method is followed, the consistency and stability of the connection can be guaranteed. This means that the connection between the electrode sheet 4 and the female base 1 can remain relatively stable during repeated use, and there will be no significant fluctuations in signal quality due to differences in the connection method, which is conducive to long-term monitoring and comparison of ECG data from different periods.

[0049] Threaded connections usually have specific specifications and directions. Only when the threads of the electrode piece 4 and the female seat 1 match and are in the correct direction can they be connected smoothly. This feature can prevent misplugging, avoid signal errors or equipment damage caused by plugging the electrode piece 4 in the wrong direction, and improve the safety and reliability of use.

[0050] The pressing mechanism includes two fixed blocks 15, which are respectively fixedly connected to the front and rear sides of the mother seat 1. The side walls of the two fixed blocks 15 are slidably connected with threaded rods 16. The lower ends of the two threaded rods 16 are jointly fixed with a pressing annular plate 17. The lower side of the pressing annular plate 17 contacts the upper side of the first anti-interference layer 9. The rod walls of the two threaded rods 16 are located at the upper ends of the fixed blocks 15 and are threadedly connected with fastening nuts 18. The lower sides of the two fastening nuts 18 contact the upper side of the fixed block 15.

[0051] The limiting mechanism includes two annular limiting plates 19, which are respectively located at the upper and lower ends of the second anti-interference layer 14. The front and rear sides of the two annular limiting plates 19 are fixed with mounting blocks 20. The side walls of the two mounting blocks 20 are provided with mounting holes, and a mounting bolt 21 is fixed between the two mounting holes.

[0052] The upper and lower sides of the socket 2 are fixed with evenly arranged anti-slip stripes 22. When the socket 2 needs to be separated from the plug end 3, it is convenient to press the outside of the anti-slip stripes 22 with your hands, thereby increasing the friction and easily pulling the socket 2 and the plug end 3 apart.

[0053] A protective tube 23 is fixed to the right end of the plug-in terminal 3 outside the signal line 11 to protect the connection position between the signal line 11 and the plug-in terminal 3 to prevent the signal line 11 from being damaged.

[0054] The first contact piece 6 and the second contact piece 10 are electrically connected, and can be electrically connected through corresponding signal transmission lines.

[0055] The first and second anti-interference layers 9 and 14 include a shielding layer 24 and an antistatic layer 25. The shielding layer 24 is the inner layer, and the antistatic layer 25 is located outside the shielding layer 24. The shielding layer is made of a metal material with good electrical conductivity, such as copper or aluminum. For example, copper has high electrical conductivity and good flexibility, and can effectively shield electromagnetic interference. At the same time, the thickness of the shielding layer is ensured to be moderate. If it is too thin, it may not provide sufficient shielding effect, while if it is too thick, it will increase the weight and cost of the device. The entire connection device is fully shielded. In addition to the conductor portion of the lead wire, the connecting plug, interface, and other parts must also be shielded to prevent external electromagnetic interference from entering the device through gaps or holes.

[0056] An insulating layer 26 is fixed between the first plug connector 5 and the externally threaded tube 7 to prevent the externally threaded tube 7 and the first plug connector 5 from contacting each other, thereby preventing interference in signal transmission.

[0057] Working principle:

[0058] When in use, the external threaded tube 7 on the upper side of the electrode sheet 4 is threadedly connected to the internal threaded tube 8, so that the electrode sheet 4 is fixed to the lower end of the female base 1, so that the first plug connector 5 is in contact with the first contact piece 6, and the second plug connector 12 on the left end of the plug end 3 is plugged and fixed to the plug base 2, so that the second plug connector 12 is in contact with the second contact piece 10, and the other end of the signal line 11 is connected to the electrocardiogram device, so that the electrode sheet 4 is in contact with the human skin;

[0059] By pressing the annular plate 17 downward, the first anti-interference layer 9 is protected outside the connection gap between the electrode sheet 4 and the female seat 1; the second anti-interference layer 14 is protected outside the connection gap between the socket 2 and the plug end 3 by the limiting mechanism, thereby increasing the anti-interference ability of the connection and making the transmission of the electrocardiogram signal more accurate.

[0060] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure signs in the claims should not be regarded as limiting the claims involved.

[0061] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An anti-interference connection device for ECG lead wires, comprising a female socket (1), a plug socket (2), a plug end (3) and an electrode sheet (4), characterized in that: The plug socket (2) is fixedly connected to the right side of the female socket (1), the plug end (3) is located at the right end of the plug socket (2), and the electrode sheet (4) is located at the lower end of the female socket (1); A first plug connector (5) is fixed on the upper side of the electrode sheet (4), a first plug hole is provided on the lower side of the female seat (1), a first contact piece (6) is fixed inside the first plug hole, an external threaded tube (7) is fixedly sleeved on the outside of the first plug connector (5), an internal threaded tube (8) is fixed on the hole wall of the first plug hole, and the first plug connector (5) is plugged into the first contact piece (6); A first anti-interference layer (9) is fixed to the outer wall of the female seat (1), a pressing mechanism is fixed to the front and rear sides of the female seat (1) at the upper end of the first anti-interference layer (9), and the lower side of the first anti-interference layer (9) contacts the upper side of the electrode sheet (4); A second plug hole is provided on the right side of the socket (2), a second contact piece (10) is fixed inside the second plug hole, a signal line (11) is fixed inside the plug end (3), a second plug connector (12) is fixed to the left end of the signal line (11), the second plug connector (12) is fixedly connected to the left end of the plug end (3), and the left end of the second plug connector (12) is plugged and fixed to the second contact piece (10); A second interference prevention layer (14) is fixed to the right end of the outer wall of the socket (2) via a fixing ring (13); the right end of the second interference prevention layer (14) is sleeved on the outside of the plug end (3); and a limiting mechanism is provided on the outside of the second interference prevention layer (14).

2. The anti-interference connection device for ECG lead wires according to claim 1, characterized in that: The external threaded tube (7) and the internal threaded tube (8) are adapted to each other and are threadedly connected to each other.

3. The anti-interference connection device for ECG lead wire according to claim 1, characterized in that: The pressing mechanism includes two fixed blocks (15), and the two fixed blocks (15) are fixedly connected to the front side and the rear side of the female seat (1) respectively. The side walls of the two fixed blocks (15) are slidably connected with threaded rods (16). The lower ends of the two threaded rods (16) are commonly fixed with a pressing annular plate (17). The lower side of the pressing annular plate (17) contacts the upper side of the first anti-interference layer (9). The rod walls of the two threaded rods (16) are located at the upper end of the fixed block (15) and are threadedly connected with fastening nuts (18). The lower sides of the two fastening nuts (18) contact the upper side of the fixed block (15).

4. The anti-interference connection device for ECG lead wires according to claim 1, characterized in that: The limiting mechanism includes two annular limiting plates (19), the two annular limiting plates (19) are respectively located at the upper end and the lower end of the second anti-interference layer (14), the front and rear sides of the two annular limiting plates (19) are fixed with mounting blocks (20), the side walls of the two mounting blocks (20) are provided with mounting holes, and a mounting bolt (21) is fixed between the two mounting holes.

5. The anti-interference connection device for ECG lead wires according to claim 1, characterized in that: Anti-slip stripes (22) arranged evenly are fixed on the upper side and the lower side of the socket (2).

6. The anti-interference connection device for ECG lead wires according to claim 1, characterized in that: The right end of the plug-in terminal (3) is located outside the signal line (11) and is fixed with a protective tube (23).

7. The anti-interference connection device for ECG lead wires according to claim 1, characterized in that: The first contact piece (6) and the second contact piece (10) are electrically connected.

8. The anti-interference connection device for ECG lead wires according to claim 1, characterized in that: The first anti-interference layer (9) and the second anti-interference layer (14) comprise a shielding layer (24) and an antistatic layer (25), wherein the shielding layer (24) is an inner layer and the antistatic layer (25) is located outside the shielding layer (24).

9. The anti-interference connection device for ECG lead wires according to claim 1, characterized in that: An insulating layer (26) is fixed between the first plug connector (5) and the external threaded pipe (7).

Images