CN216491814U - Shielding component of lead wire for electrocardio or heart sound acquisition equipment - Google Patents

Abstract

The utility model provides a shielding subassembly that is used for electrocardio or heart sound collection equipment's lead line, shielding subassembly includes at least one shielding unit, shielding unit includes: the shell (11) is provided with an opening (15) at one end, so that the shell (11) comprises a hollow receiving part for receiving a binding post of a lead wire of the electrocardio or heart sound acquisition equipment; the shielding ring (21) is arranged in the receiving part and is used for surrounding a binding post of a lead wire of the electrocardio or heart sound acquisition equipment; and the end head (12), the end head (12) is combined with the shell (11) and closes one end of the shell (11) far away from the opening (15). The utility model discloses a shielding subassembly that is used for electrocardio or heart sound collection equipment's lead line can reduce external disturbance, improves the quality that electrocardio or heart sound collection equipment gathered the signal, improves and detects authenticity and accuracy.

Description

Shielding component of lead wire for electrocardio or heart sound acquisition equipment

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to an electrocardio or heart sound collection equipment field specifically, relate to a shielding subassembly that is used for electrocardio or heart sound collection equipment's line of leading.

Background

The electrocardiograph acquisition device is capable of acquiring, transmitting and displaying electrocardiograph signals, and generally comprises an electrode for contacting with a human body, a lead wire and a signal processing host, which are connected in sequence. The current electrodes have several common forms, namely an electrode clip, an electrode ball and an electrode patch, and the common way of connecting the lead wire to the electrode is to insert the post of the lead wire into the connecting ring of the electrode.

At present, the use of a multi-lead electrocardiogram detector is very common, the multi-lead electrocardiogram detector can obtain a multi-lead electrocardiogram, especially a traditional twelve-lead electrocardiogram, on the basis of the traditional twelve-lead electrocardiogram detector, more applications of the multi-lead electrocardiogram are recently provided, for the acquisition of the multi-lead electrocardiogram, used lead wires are multiple, the multiple lead wires are integrated, in the actual use process, metal binding posts of the lead wires can cause electromagnetic interference to electrocardiogram acquisition equipment, and especially when the multi-lead electrocardiogram detector only uses a part of the lead wires for electrocardiogram acquisition. Similarly, lead lines have a similar effect on heart sound acquisition devices.

At present, a lead wire of the electrocardio acquisition equipment and an electrode binding post of the lead wire of part of the electrocardio heart sound acquisition equipment do not use a shielding device, when a certain electrode binding post does not need to be used, the binding post is exposed, and the contact with the skin of a person is possible in the detection process, so that the interference occurs, the signal acquired by the electrocardio is influenced, and the authenticity and the accuracy of the detection result are influenced. In order to reduce the adverse effect on the detection result, in the detection process, the operator needs to place the redundant lead wires at a position not contacting the skin or not contacting objects such as metal and the like with static electricity or interference, and some objects such as disposable plastic bags and the like are used for wrapping so as to play a certain shielding role. However, the methods cannot completely shield interference, and also influence the acquisition of signals, so that the acquisition quality of electrocardio and phonocardiogram is influenced, and the reading and analysis are influenced; moreover, the effort to reduce signal interference is cumbersome and unreliable.

Therefore, a technical means for improving the quality of the signal collected by the electrocardiograph or heart sound collecting device is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects of the prior art at least partially and providing a shielding component of a lead wire for an electrocardio or heart sound acquisition device.

An object of the utility model is to provide a shielding subassembly that is used for electrocardio or heart sound collection equipment's lead line can improve the quality that electrocardio or heart sound collection equipment gathered the signal, improves and detects authenticity and accuracy.

An object of the utility model is to provide a shielding subassembly that is used for electrocardio or heart sound collection equipment's lead line reduces and detects the extra operating procedure that goes on for improving the detection accuracy in current electrocardio or heart sound collection.

An object of the utility model is to provide a shielding subassembly that is used for electrocardio or heart sound collection equipment's line of leading, avoids the line of leading winding or knoing.

In order to achieve one of the above purposes, the technical solution of the present invention is as follows:

a shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus, the shielding assembly comprising at least one shielding unit, the shielding unit comprising:

the shell is open at one end, so that the shell comprises a hollow receiving part for receiving a binding post of a lead wire of the electrocardio or heart sound acquisition equipment;

the shielding ring is arranged in the receiving part and used for surrounding a binding post of a lead wire of the electrocardio or heart sound acquisition equipment; and

and the end head is combined with the shell and used for closing one end of the shell far away from the opening.

According to a preferred embodiment of the present invention, the shielding unit further includes at least one reinforcing coupling post integrally provided on one end of the shielding ring away from the opening, and the reinforcing coupling post extends into the end and is coupled to the end.

According to a preferred embodiment of the invention, the end comprises an inner recess and a socket on one side of the end, the inner recess extending from the one side of the end to the opposite side of the end to the one side, the socket extending from the bottom surface of the inner recess to the other side of the end to the one side.

According to a preferred embodiment of the present invention, the end head includes an outer protrusion and an insert post on one side of the end head, the outer protrusion extending outwardly from the one side of the end head, the insert post extending outwardly from the outer protrusion.

According to a preferred embodiment of the present invention, the tip includes an inner recess extending from the one side of the tip to the other side of the tip opposite to the one side, and a socket extending from a bottom surface of the inner recess to the other side of the tip opposite to the one side;

the tip includes an outer protrusion on the other side of the tip that extends outwardly from the other side of the tip and a post that extends outwardly from the outer protrusion;

wherein the shape and size of the male part and the female part are matched with each other, and the shape and size of the plug post and the plug hole are matched with each other.

According to a preferred embodiment of the present invention, the shield ring has elasticity, and the diameter of the shield ring successively undergoes a process of gradually increasing and gradually decreasing from one end of the shield ring to the other end along the extending direction of the shield ring.

According to a preferred embodiment of the present invention, the shielding unit further includes a plurality of reinforcing coupling posts uniformly disposed on one end of the shielding ring away from the opening.

According to a preferred embodiment of the present invention, the shielding assembly includes a plurality of shielding units, which are combined together in parallel with each other.

According to a preferred embodiment of the present invention, the shielding assembly further includes a connecting portion through which the plurality of shielding units are combined together.

According to a preferred embodiment of the present invention, the shield unit further includes a reinforcing coupling ring, the reinforcing coupling ring is integrally provided on one end of the shield ring away from the opening, and the reinforcing coupling ring is extended into the end socket to be coupled with the end socket.

According to a preferred embodiment of the present invention, the shielding assembly includes a plurality of shielding units, which are combined together in a matrix shape.

The utility model discloses a shielding subassembly that is used for electrocardio or heart sound collection equipment's lead line includes the casing, shielding ring and end, when the lead line of part way number does not use in electrocardio or heart sound detection, insert the shielding ring in shielding subassembly's casing with their metal terminal, shielding ring adopts metal material to make, can shield electromagnetic interference, and the casing adopts non-conductive materials such as plastics or rubber to make, even if make these non-used lead line and human skin contact or contact each other between them carelessly so, because the casing is non-conductive, electric current or static are shielded, consequently, can reduce external disturbance, improve the quality that electrocardio or heart sound collection equipment gathered the signal, improve detection authenticity and accuracy.

When electrocardio or heart sound detection is carried out, after the number of the lead wires is determined not to be used, only the binding posts of the rest lead wires are inserted into the shielding assembly, so that the complex and unreliable operation of placing the lead wires at a position not in contact with the skin or not in contact with objects such as metal and the like with static electricity or interference is not needed, and the operation steps additionally paid for shielding signal interference are simple and easy.

Furthermore, through set up reinforcing combination post and reinforcing combination ring on the shield ring, can strengthen being connected of shield ring and end or casing, avoid pulling out and inserting the in-process shield ring and drop. The utility model discloses a shielding assembly that is used for electrocardio or heart sound collection equipment's lead line can use a plurality of shielding units combination, with the help of interior concave part, jack, the outer convex part that provide on the end and insert the post, can make shielding unit combine together, means that the terminal of lead line can be concentrated, forms a thread end, can avoid the winding of the lead line that does not use or tie a knot. Furthermore, the utility model discloses a shielding component for electrocardio or heart sound collection equipment's lead line can design into in bank or the shielding unit group of matrix with a plurality of shielding units, and the shielding unit group also can combine with the shielding unit group to realize the extension of shielding unit, consequently the utility model discloses a shielding component for electrocardio or heart sound collection equipment's lead line can adapt to the jam-proof of the lead line of any quantity.

Drawings

Fig. 1 is a perspective view of a shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to an embodiment of the present invention, showing a front face of the shielding assembly;

fig. 2 is a perspective view of a shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to an embodiment of the present invention, showing the back of the shielding assembly;

fig. 3 is a perspective view of a shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to an embodiment of the present invention;

fig. 4 is a bottom view of a shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to an embodiment of the present invention;

fig. 5 shows a shielding ring of a shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to an embodiment of the present invention;

fig. 6 is a perspective view of a shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to another embodiment of the present invention;

FIG. 7 illustrates the combination of two shielding assemblies for lead wires of an electrocardiograph or heart sound acquisition device;

fig. 8 is a perspective view of a shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to still another embodiment of the present invention;

fig. 9 is a perspective view of a shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to still another embodiment of the present invention; and

fig. 10 is a perspective view of a shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to a further embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present invention will hereinafter be described in detail with reference to the accompanying drawings, wherein like or similar reference numerals denote like or similar elements. Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.

According to the utility model discloses a general concept provides a shielding subassembly that is used for electrocardio or heart sound collection equipment's line of leading, shielding subassembly includes at least one shielding unit, shielding unit includes: the shell is open at one end, so that the shell comprises a hollow receiving part for receiving a binding post of a lead wire of the electrocardio or heart sound acquisition equipment; the shielding ring is arranged in the receiving part and used for surrounding a binding post of a lead wire of the electrocardio or heart sound acquisition equipment; and the end head is combined with the shell and used for closing one end of the shell, which is far away from the opening.

The utility model discloses a shielding subassembly that is used for electrocardio or heart sound collection equipment's lead wire, as before, there is the signal interference problem in the electrocardio detects, the designer discovers, with size suitable non-magnetic material such as copper, aluminium after wrapping up, again cover on the terminal of lead wire, can effectively shield the electromagnetic interference and the electric current signal interference of electrocardio lead wire, the applicant has carried out a series of experiments afterwards, above-mentioned effect has been verified to find a better scheme.

The utility model discloses a starting point expects in electrocardio detection course of work, and the electrode terminal of a certain or a plurality of electrocardio lead line can shield because of the interference that external factors caused to detecting under the user state. Further, the utility model discloses still expect to provide a convenient to detach and make the electrocardio detect under multiple application scene all general shielding lead wire interference's method. This kind of product or method should be simple process, low cost, consequently, finally formed the utility model discloses a shielding subassembly that is used for electrocardio or heart sound collection equipment's lead wire, it can conveniently make electrocardio or heart sound collection equipment switch the user state at any time under multiple state, and the number of leading of rapid change promptly does not influence the accuracy of testing result.

Fig. 1-5 show the shielding subassembly of the lead wire for electrocardio or heart sound collection equipment of an embodiment of the utility model, the shielding subassembly includes a shielding unit, and this shielding unit includes: housing 11, shield ring 21 and header 12. One end of the shell 11 is opened 15, so that the shell 11 comprises a hollow receiving part for receiving a binding post of a lead wire of the electrocardio or heart sound acquisition equipment; the shielding ring 21 is arranged in the receiving part and is used for surrounding a binding post of a lead wire of the electrocardio or heart sound acquisition equipment; the tip 12 engages the housing 11 to close the end of the housing 11 remote from the opening 15. The shell 11 is cylindrical in profile, with an upper end joined to a head 12, the head 12 being substantially cylindrical, but with its axis horizontal, perpendicular to the vertical axis of the shell 11, and the shell 11 being joined at one end to the circumferential surface of the head 12. The housing 11 and the tip 12 may be integral or may be separate and then joined by a connecting means. In the case where the two are integral, they are preferably made of plastic, rubber or PVC, and the terminal 12 is a flat cylinder, which is convenient for finger holding and facilitates the connection and disconnection of the terminal of the lead wire to and from the shielding assembly. The shield ring 21 is made of a metal material, preferably copper foil or aluminum foil, a longitudinal length of the shield ring 21 is smaller than a longitudinal length of the housing 11, and a lower end of the shield ring 21 is spaced apart from a lower end of the housing 11 by a distance (see fig. 3).

It should be noted that, in the present invention, "integral" means that two or more related elements are obtained from the same material through the same manufacturing step.

The interference on the lead wire of the electrocardio acquisition equipment is mainly electromagnetic interference, which is mainly divided into two cases: the electromagnetic interference in the environment and the interference generated when the electrode contacts with the external articles are the first. The utility model discloses inlay copper foil or aluminium foil in insulating material such as plastics or PVC, on the one hand, can pass through insulating material, interference such as isolated external voltage electromagnetism, on the other hand, copper foil and aluminium foil can shield external electromagnetic interference signal's entering, reduce or shield its interference. The copper foil and the aluminum foil are both metal foil conductive materials and have electromagnetic shielding effects. The copper foil and the aluminum foil can function as electromagnetic signal shields because they form a closed shield room with the surrounding metal. In terms of communication, electromagnetic shielding is the isolation of metal between two spatial regions to control the induction and radiation of electric, magnetic and electromagnetic waves from one region to another. Particularly, the shielding body is used for surrounding the interference source of the element part, the circuit, the assembly, the cable or the whole system, and preventing the interference electromagnetic field from diffusing outwards; the receiving circuit, device or system is surrounded by a shield to protect them from external electromagnetic fields. According to the principle of electromagnetic shielding, there is no relation between the electromagnetic shielding and whether the shielding body is grounded or not. There are only two factors that actually affect the shielding effectiveness of the shield: one is that the entire shield surface must be electrically continuous and the other is that there cannot be a conductor that penetrates directly through the shield.

In the frequent plugging process between the shielding assembly and the binding post of the lead wire, the shielding ring 21 is easily separated from the housing 11, in order to prevent the separation of the shielding assembly and the binding post, the shielding unit is further provided with at least one reinforcing combination column 22, the reinforcing combination column 22 is integrally arranged at one end of the shielding ring 21 far away from the opening 15, and the reinforcing combination column 22 extends into the terminal 12 and is combined with the terminal 12. The reinforcing coupling posts 22 are preferably provided integrally with the shield ring 21, and therefore, both are made of the same material, and the reinforcing coupling posts 22 are embedded inside the header 12 so that the shield ring 21 is firmly fixed in the housing 11. According to a preferred embodiment of the present invention, the shielding unit includes a plurality of reinforcing coupling posts 22, and the plurality of reinforcing coupling posts 22 are uniformly disposed on one end of the shielding ring 21 away from the opening 15.

In an alternative embodiment, the shielding unit further comprises a reinforcing coupling ring integrally provided on an end of the shielding ring 21 remote from the opening 15, and the reinforcing coupling ring protrudes into the header 12 to be coupled with the header 12. The reinforcement coupling ring also serves to reinforce the connection of the shield ring 21 to the housing 11 or the header 12.

According to a preferred embodiment of the present invention, the shielding ring 21 has elasticity, and the diameter of the shielding ring 21 successively undergoes a process of gradually increasing and gradually decreasing from one end of the shielding ring 21 to the other end along the extending direction of the shielding ring 21. That is, the cross section of the shield ring 21 in the longitudinal extension direction is not the same, but takes a shape that is small in the middle and large at both ends, which is advantageous for clamping the terminal.

In the embodiment of fig. 1-5, the tip 12 includes an internal recess 13 and a receptacle 14 on one side of the tip 12, the internal recess 13 extending from the one side of the tip 12 to the other side of the tip 12 opposite the one side, the receptacle 14 extending from a bottom surface of the internal recess 13 to the other side of the tip 12 opposite the one side. The design of the inner recess 13 and the receptacle 14 serves to achieve a connection between the shielding unit and the shielding unit, i.e. an expansion of the shielding assembly, with a simple structure. When a plurality of terminals of lead wires need to be protected by a shielding assembly, it is simple to protect them separately by a plurality of identical shielding units, but it is desirable that the lead wires can be associated with each other or grouped together to avoid twisting and knotting of the wires, and therefore it is advantageous to design the shielding units so as to be able to be combined with each other, and the terminals of the plurality of lead wires can be grouped together.

Fig. 6 is a perspective view of a shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to another embodiment of the present invention, which is different from the shielding assembly of the embodiment of fig. 1 to 5 in that: the tip 12 is not provided with the inner recess 13 and the insertion hole 14, but instead, the tip 12 includes an outer protrusion 16 and a post 17 on one side of the tip 12, the outer protrusion 16 extending outwardly from the one side of the tip 12, and the post 17 extending outwardly from the outer protrusion 16. Here, the male part 16 matches the shape and size of the female part 13 in the embodiment of fig. 1-5 and the post 17 matches the shape and size of the receptacle 14 in the embodiment of fig. 1-5, so that the shielding assembly in both embodiments can be joined together by inserting the post 17 into the receptacle 14 and the male part 16 into the female part 13, in such a way that two lead wires can be joined together, see fig. 7.

Further preferably, referring to fig. 8, the tip 12 includes an inner recess 13 and a receptacle 14 on one side of the tip 12, the inner recess 13 extending from the one side of the tip 12 to the other side of the tip 12 opposite to the one side, the receptacle 14 extending from a bottom surface of the inner recess 13 to the other side of the tip 12 opposite to the one side; said head 12 including an external protrusion 16 and a post 17 on the other side of the head 12, said external protrusion 16 extending outwardly from said other side of the head 12, said post 17 extending outwardly from the external protrusion 16; wherein the male part 16 and the female part 13 are matched in shape and size to each other, and the stud 17 and the receptacle 14 are matched in shape and size to each other. In this way, the male part 16 and the post 17 of one shield unit can be inserted into the female part 13 and the receptacle 14 of the other shield unit, the shield units can be expanded infinitely, and any number of lead wires can be grouped together by such a shield unit. Here, the height of the plug 17 is smaller than the depth of the insertion hole 14, and the male part 16 and the female part 13 may have substantially equivalent heights or depths; their diameter is preferably such that they can be wedged after insertion.

In the embodiment of the present invention, the male part 16 and the stud 17, the female part 13 and the socket 14 are shown in a cylindrical structure, however, this is only an example, and it should be noted that the male part 16 and the stud 17, the female part 13 and the socket 14 may have other shapes, for example, a cylinder having a polygonal cross section.

Fig. 9 is a perspective view of a shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to still another embodiment of the present invention, according to which the shielding assembly includes a plurality of shielding units that are combined together in parallel with each other and are combined together through a connecting portion 31. The figure shows three shielding elements arranged in a row, joined one to the other at the location of the ends and joined between the housings 11 of the two shielding elements at the connection 31, which enhances the stability of the joint between the shielding elements. The number of the shielding units can be changed, and a shielding assembly can be formed by more shielding units.

Fig. 10 is a perspective view of a shielding assembly of a lead wire for an electrocardiograph or heart sound collecting apparatus according to a further embodiment of the present invention, which is different from the embodiment shown in fig. 9 in that the three shielding units of fig. 9 are female coupling members, and the three shielding units of fig. 10 are male coupling members, i.e., an outward convex portion 16 and an insertion post 17 are provided on the end of the shielding units.

As a preferred embodiment, the shielding assembly may include a plurality of shielding units, and the plurality of shielding units are combined together in a matrix, so that more lead wires can be shielded using one shielding assembly.

The utility model discloses a shielding subassembly that is used for electrocardio or heart sound collection equipment's lead line includes the casing, shielding ring and end, when the lead line of part way number does not use in electrocardio or heart sound detection, insert the shielding ring in shielding subassembly's casing with their metal terminal, shielding ring adopts metal material to make, can shield electromagnetic interference, and the casing adopts non-conductive materials such as plastics or rubber to make, even if make these non-used lead line and human skin contact or contact each other between them carelessly so, because the casing is non-conductive, electric current or static are shielded, consequently, can reduce external disturbance, improve the quality that electrocardio or heart sound collection equipment gathered the signal, improve detection authenticity and accuracy.

When electrocardio or heart sound detection is carried out, after the number of the lead wires is determined not to be used, only the binding posts of the rest lead wires are inserted into the shielding assembly, so that the complex and unreliable operation of placing the lead wires at a position not in contact with the skin or not in contact with objects such as metal and the like with static electricity or interference is not needed, and the operation steps additionally paid for shielding signal interference are simple and easy.

Furthermore, through set up reinforcing combination post and reinforcing combination ring on the shield ring, can strengthen being connected of shield ring and end or casing, avoid pulling out and inserting the in-process shield ring and drop. The utility model discloses a shielding subassembly that is used for electrocardio or heart sound collection equipment's lead line can use a plurality of shielding units combination, with the help of interior concave part, jack, outer convex part and the inserted column that provides on the end, can make shielding unit combine together, means that the terminal of lead line can be concentrated, forms a thread end, can avoid the winding of lead line that does not use or tie a knot. Furthermore, the utility model discloses a shielding component for electrocardio or heart sound collection equipment's lead line can design into in bank or the shielding unit group of matrix with a plurality of shielding units, and the shielding unit group also can combine with the shielding unit group to realize the extension of shielding unit, consequently the utility model discloses a shielding component for electrocardio or heart sound collection equipment's lead line can adapt to the jam-proof of the lead line of any quantity.

In summary, the utility model discloses following beneficial effect has: 1) the problem of electromagnetic interference of external electromagnetism and the like on a lead wire of the electrocardio or heart sound acquisition equipment is solved; 2) when a certain lead is not used, the influence of data signals caused by the contact of the lead with external articles such as skin and the like is avoided; 3) the tail end is designed in a cylindrical shape, so that the plugging and unplugging are convenient; 4) simple process and low cost.

Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention. The scope of the invention is defined by the appended claims and equivalents thereof.

List of reference numerals:

11 casing

12 end socket

13 inner recess

14 jack

15 opening

16 outer convex part

17 inserting column

21 shield ring

22 enhanced binding column

31 connecting part.

Claims (10)

1. A shielding subassembly that is used for electrocardio or heart sound collection equipment's lead wire, shielding subassembly includes at least one shielding unit, its characterized in that, shielding unit includes:

the shell (11) is provided with an opening (15) at one end, so that the shell (11) comprises a hollow receiving part for receiving a binding post of a lead wire of the electrocardio or heart sound acquisition equipment;

the shielding ring (21) is arranged in the receiving part and is used for surrounding a binding post of a lead wire of the electrocardio or heart sound acquisition equipment; and

a tip (12), the tip (12) being coupled to the housing (11) to close an end of the housing (11) distal from the opening (15).

2. The shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to claim 1, wherein:

the shielding unit further comprises at least one reinforced combination column (22), the reinforced combination column (22) is integrally arranged at one end of the shielding ring (21) far away from the opening (15), and the reinforced combination column (22) extends into the terminal head (12) and is combined with the terminal head (12).

3. The shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to claim 1, wherein:

the tip (12) includes an inner recess (13) and a receptacle (14) on one side of the tip (12), the inner recess (13) extending from the one side of the tip (12) to the other side of the tip (12) opposite the one side, the receptacle (14) extending from a bottom surface of the inner recess (13) to the other side of the tip (12) opposite the one side.

4. The shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to claim 1, wherein:

the tip (12) includes an outward protrusion (16) and a post (17) on one side of the tip (12), the outward protrusion (16) extending outward from the one side of the tip (12), the post (17) extending outward from the outward protrusion (16).

5. The shielding assembly of lead wire for electrocardiogram or heart sound acquisition equipment as claimed in claim 1, wherein:

the tip (12) includes an inner recess (13) and a receptacle (14) on one side of the tip (12), the inner recess (13) extending from the one side of the tip (12) to the other side of the tip (12) opposite to the one side, the receptacle (14) extending from a bottom surface of the inner recess (13) to the other side of the tip (12) opposite to the one side;

the head (12) comprises an external protrusion (16) and a plug-in post (17) on the other side of the head (12), the external protrusion (16) extends outwards from the other side of the head (12), and the plug-in post (17) extends outwards from the external protrusion (16);

wherein the shape and size of the male part (16) and the female part (13) are matched with each other, and the shape and size of the plug column (17) and the plug hole (14) are matched with each other.

6. The shielding assembly for lead wire of electrocardiograph or heart sound collecting apparatus according to any one of claims 1 to 5, wherein:

the shielding ring (21) has elasticity, and the diameter of the shielding ring (21) is subjected to processes of gradually increasing and gradually decreasing from one end of the shielding ring (21) to the other end along the extension direction of the shielding ring (21).

7. The shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to claim 2, wherein:

the shielding unit further comprises a plurality of enhanced binding posts (22), and the enhanced binding posts (22) are uniformly arranged on one end of the shielding ring (21) far away from the opening (15).

8. The shielding assembly for lead wire of electrocardiograph or heart sound collecting apparatus according to any one of claims 1 to 5, wherein:

the shielding assembly includes a plurality of shielding units coupled together in parallel with each other.

9. The shielding assembly for lead wires of an electrocardiograph or heart sound collecting apparatus according to claim 8, wherein:

the shielding assembly further comprises a connecting portion (31), and the plurality of shielding units are combined together through the connecting portion (31).

10. The shielding assembly of lead wire for electrocardiogram or heart sound acquisition equipment as claimed in claim 1, wherein:

the shielding unit further comprises a reinforcing combination ring which is integrally arranged at one end of the shielding ring (21) far away from the opening (15) and extends into the terminal (12) to be combined with the terminal (12).

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