WO2018028260A1

WO2018028260A1 - Electrocardio lead wire and electrocardio tester

Info

Publication number: WO2018028260A1
Application number: PCT/CN2017/084438
Authority: WO
Inventors: 徐章龙; 肖冬毅; 梁军
Original assignee: 广州视源电子科技股份有限公司
Priority date: 2016-08-10
Filing date: 2017-05-16
Publication date: 2018-02-15
Also published as: CN206163864U

Abstract

Disclosed is an electrocardio lead wire (100), comprising a plug (10) and at least two lead wires (20). The plug comprises a connecting plug (11) and six conductive terminals (12). Each end of the six conductive terminals (12) is fixed inside of the connecting plug (11). The at least two lead wires (20) are electrically connected to each other end of the conductive terminals (12) respectively. The electrocardio tester reduces, by means of the connection of the plug (10) and an interface, space occupation of an interface and prevents the occupation of a lot of surface space by the electrocardio tester due to the volume of the interface being too large, thereby realizing the miniaturization and portability of the electrocardio tester.

Description

ECG lead wire and ECG tester

Technical field

The utility model relates to the field of electrocardiogram testing, in particular to an electrocardiogram lead wire and an electrocardiogram tester.

Background technique

The ECG tester is a device that can monitor the human heart. It is mainly composed of an ECG test host and an ECG lead wire. The ECG test host has an ECG lead wire interface and a controller connected to the ECG lead wire interface. The ECG test host is connected to the plug of the ECG lead wire through the ECG lead wire interface.

The ECG lead wire usually has 3, 5 or 12 electrodes to connect the upper limbs, lower limbs or chest of the human body according to different needs, and then adopts the 3-lead, 5-lead or 12-lead collection method to collect the human body's electrocardiogram. Signal; among them, the ECG lead wire suitable for the 3-lead acquisition mode usually has RA, LA and LL electrodes; the ECG lead wire suitable for the 5-lead collection mode is provided with RA, LA, LL, RL and The V electrode; and the ECG lead wire suitable for the 12-lead acquisition mode generally has RA, LA, LL, RL, V, V+ and V1 to V6 electrodes. When the ECG lead wire is connected to the ECG lead wire interface on the ECG test host, the ECG lead wire transmits the ECG signal collected by each electrode to the ECG lead wire interface, and the ECG lead wire interface connects RA, The LA, LL, RL, V, V+ or V1 to V6 signals are transmitted to the controller.

In order to adapt to various numbers of lead wires at the same time, the conventional ECG lead wire is often used with a DB type or a LEMO plug. Accordingly, the interface on the ECG test host is also a DB type interface or a LEMO female head. Due to the large size of the DB or LEMO plugs, the size of the DB type interface or the LEMO female head is also large. For some small portable or handheld ECG test hosts, there may not be enough space to arrange These interfaces, or because the interface is too large, affect the overall design of the ECG test host.

Utility model content

In view of the above problems, the object of the present invention is to provide an electrocardiographic lead wire and an electrocardiograph, which solves the problem of space occupation caused by an excessive interface volume by improving the plug and the interface.

The utility model provides an electrocardiographic lead wire, comprising a plug and at least two lead wires, the plug comprises a plug connector and six conductive terminals, and one end of the six conductive terminals is fixed according to a preset arrangement order. The at least two lead wires are electrically connected to the other end of the conductive terminal in the plug connector.

Preferably, one end of the conductive terminal has a distance of 1.0-3.0 mm from the socket of the plug connector.

Preferably, the six conductive terminals are arranged in parallel, and the distance between the adjacent two conductive terminals is 0.8-2.5 mm.

Preferably, the plug connector is made of an insulating material, and the socket of the plug connector has a height of 0.5-2.5 mm, and the socket has a length of 6.0-12.0 mm.

Preferably, the plug further comprises a printed circuit board and a cover made of an insulating material, the other end of the conductive terminal is disposed on the printed circuit board and electrically connected to the printed circuit board, the at least two A strip of lead wires is electrically connected to the other end of the conductive terminal through the printed circuit board, the cover is connected to the plug connector, and the printed circuit board is covered.

Preferably, the plug connector is provided with a limiting member made of an insulating material, the limiting member has a cavity, and the sidewall of the cavity is provided with corresponding to the six conductive terminals. 6 limiting holes; one end of the conductive terminal forms a bent portion, and the bent portion passes through the limiting hole and is located in the cavity.

Preferably, the ECG lead wire further includes a main cable and a splitter, one end of the main cable is connected to the plug, and the other end of the main cable is connected to one end of the splitter, the splitter The other end is connected to the at least two lead wires, and the cores in the at least two lead wires are bundled into the main cable via the splitter and extend at one end of the main cable It is then electrically connected to the other end of the conductive terminal.

Preferably, one side of the outer cover is provided with an indicator mark, and the other side of the outer cover is provided with an anti-slip area, and the anti-slip area is provided with anti-slip bumps or anti-slip lines.

Preferably, the plug is an L-shaped plug.

The utility model also provides an electrocardiograph, comprising an electrocardiogram test host and an ECG lead wire as described above, wherein the ECG test host is provided with an interface, and the plug on the ECG lead wire is connected to the ECG test lead ECG tests the interface on the host.

The electrocardiogram lead wire and the electrocardiogram tester provided by the utility model are designed by connecting a plug suitable for 5 lead or less than 5 lead collection mode, and are connected with the corresponding interface on the electrocardiograph test host through the plug, Achieving transmission of the collected signal to the ECG test host. Since the number of conductive terminals required to be connected to the lead wires is small (only six), the volume of the plugs can be designed to be smaller than the conventional DB type or LEMO plug volume, and correspondingly, the corresponding interface The volume is also smaller than that of the conventional interface, so that the occupation of the surface space of the ECG test host by the conventional USB interface can be reduced.

DRAWINGS

In order to explain the technical solutions of the present invention more clearly, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Field For the ordinary technicians, other drawings can be obtained based on these drawings without any creative work.

FIG. 1 is a schematic structural view of an electrocardiographic lead wire provided by an embodiment of the present invention.

2 is a partial structural schematic view of a plug provided by an embodiment of the present invention.

3 is a perspective view of a plug provided by an embodiment of the present invention.

4 is a front elevational view of a plug provided by an embodiment of the present invention.

FIG. 5 is a schematic structural view of a cover provided by an embodiment of the present invention.

Figure 6 is a schematic cross-sectional view of the lead wire of Figure 1.

Figure 7 is a schematic cross-sectional view of the main cable of Figure 1.

FIG. 8 is a schematic structural view of one side of a plug provided by a preferred embodiment of the present invention.

9 is a schematic structural view of another side of a plug provided by a preferred embodiment of the present invention.

FIG. 10 is a schematic structural view of an electrocardiograph according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Referring to FIG. 1 and FIG. 2 , an embodiment of the present invention provides an electrocardiographic lead wire 100 including a plug 10 and at least two lead wires 20 . The plug 10 includes a plug connector 11 and six conductive terminals 12 . One end of the six conductive terminals 12 is fixed in the plug connector 11, and the at least two lead wires 20 are electrically connected to the other end of the conductive terminal 12.

Preferably, as shown in FIG. 3, the distance between one end of the conductive terminal 12 and the socket 112 of the plug connector 11 is 1.0-3.0 mm (preferably 1.8 mm), which satisfies the creepage distance of 1000 V AC voltage. That is, when an AC voltage of 1000 V is applied between the conductive terminal 12 and the socket 112, breakdown or flashover does not occur.

Preferably, as shown in FIG. 4, the six conductive terminals 12 are arranged in parallel, and the distance between the adjacent two conductive terminals 12 is 0.8-2.5 mm.

Preferably, the distance between the adjacent two conductive terminals 12 is 1.3 mm.

In the preferred embodiment, the plug 10 as a whole has a strong resistance to voltage due to the increased distance between adjacent conductive terminals 12. In particular, when the distance between two adjacent conductive terminals 12 reaches 1.30 mm, the voltage resistance of the adjacent conductive terminals 12 can reach 1500 V or more (ie, even if the AC voltage between adjacent conductive terminals 12 reaches 1500 V). There will also be no breakdown or flashover) to meet safety performance requirements.

Preferably, the plug connector 11 is made of an insulating material, and the socket 112 of the plug connector 11 has a height of 0.5 to 2.5 mm, and the socket has a length of 6.0 to 12.0 mm.

In the preferred embodiment, the plug connector 11 is entirely made of an insulating material to avoid potential safety hazards caused by leakage. In addition, the height of the socket 112 for the interface with the ECG test host is 0.5-2.5 mm, and the length of the socket 112 is 6.0-12.0 mm, which is much smaller than the size of the existing DB-type or LEMO plug, so corresponding The interface of the ECG test host is also small, which avoids occupying the surface space of the ECG test host.

Preferably, referring to FIG. 5, the plug 10 further includes a printed circuit board 13 and a cover 14 made of an insulating material, and the other end of the conductive terminal 12 is disposed on the printed circuit board 13 and The printed circuit board 13 is electrically connected, and the at least two lead wires 20 are electrically connected to the other end of the conductive terminal 12 through the printed circuit board 13, and the outer cover 14 is connected to the plug connector 11 and covered. The printed circuit board 13 is provided.

In the preferred embodiment, the corresponding electrical connection between the at least two lead wires 20 and the conductive terminals 12 is realized by the printed circuit board 13, which ensures reliable and stable connection, and can also pass through the printed circuit. A filter circuit or a protection circuit is added to the board 13 to filter and pre-process the signals collected by the at least two lead wires 20, thereby enhancing the security of use. The cover 14 covers the printed circuit board 13 to protect the printed circuit board 13.

Preferably, as shown in FIG. 3, the plug connector 11 is provided with a limiting member 113 made of an insulating material, the limiting member 113 has a cavity, and the sidewall of the cavity is provided with a The six conductive terminals correspond to the six limiting holes 114; one end of the conductive terminal 12 forms a bent portion 121, and the bent portion 121 passes through the limiting hole 114 and is located in the empty Inside the cavity.

In the preferred embodiment, when the plug connector 11 is inserted into the interface on the ECG test host, the bent portion 121 is first lifted, and since the bent portion 121 itself has elasticity, it is being Upon lifting, an elastic restoring force is generated which causes the bent portion 121 to be tightly coupled to the pins in the interface, thus ensuring a secure connection of the conductive terminal 12 to the interface.

Preferably, the ECG lead 100 further includes a main cable 30 and a splitter 40, one end of the main cable 30 is connected to the plug 10, and the other end of the main cable 30 is connected to the splitter 40. One end, the other end of the splitter 40 is connected to the at least two lead wires 20, and the cores in the at least two lead wires 20 are bundled to the main cable 30 via the splitter 40 And electrically connected to the other end of the conductive terminal 12 after extending one end of the main cable 30.

Specifically, in the case of having a plurality of lead wires 20, in order to prevent wiring confusion, these lead wires 20 need to be managed.

Referring to FIG. 6 together, in the embodiment of the present invention, the lead wire 20 includes a conductor 21, and the package is described. An insulating layer 22 of the conductor 21, a first semiconducting layer 23 encasing the insulator 22, a first shielding layer 24 enclosing the first semiconducting layer 23, and a first sheath 25 enclosing the first shielding layer 24. Wherein the conductor 21 and the insulating layer 22 form the core.

In the embodiment of the present invention, the splitter 40 has at least two wiring ports and one outlet port, wherein the core of the at least two lead wires 20 enters the branch line from the wiring port Inside the device 40, after being bundled in the splitter 40, it is passed out from the outlet and is inserted into the main cable 30 from the other end of the main cable 30.

Specifically, please refer to FIG. 7. In the embodiment of the present invention, the innermost layer of the main cable 30 is a second semi-conductive layer 31, and the second semi-conductive layer 31 forms a cavity to accommodate The wire core is placed. A second shielding layer 32 and a second sheath 33 are sequentially wrapped outside the second semiconductive layer 31.

It should be noted that, in the embodiment of the present invention, a filling layer 34 may be disposed in the cavity to fill the gap between the cores to prevent contact failure caused by the movement of the core.

In the embodiment of the present invention, the core in the main cable 30 is routed inside the main cable 30, and after being extended from one end of the main cable 30, is electrically connected to the plug 10.

Specifically, in the embodiment of the present invention, since the other end of the conductive terminal 12 is located on the printed circuit board 13, the core in the main cable 30 protrudes from one end of the main cable 30, Electrically connected to the other end of the conductive terminal 12, respectively, thereby transmitting the collected signal to the plug 10. Since the plug 10 is connected to the interface on the ECG test host, the collected signal is finally transmitted to the The ECG test host.

In the embodiment of the present invention, the ECG lead wire 100 further includes an electrode 50 connected to the other end of the at least two lead wires 20, and the electrode 50 is fixed to a designated position of the human body (such as a heart, a chest, etc.) Position) to capture the signal of the specified position of the human body. The electrode 50 may be in the form of a sheet or a clip, and the present invention is not specifically limited.

It should be noted that, in the embodiment of the present invention, since the signal transmitted by each pin in the interface is fixed, the connection relationship between the conductive terminal 12 and the pin in the interface is also fixed. Therefore, when the lead wire 20 is connected to the conductive terminal 12, the signal transmitted by the lead wire 20 is connected to the signal transmitted by the pin. For example, for the case of five lead wires, it is assumed that the electrodes connected to each lead wire are used to collect RA, LA, LL, RL, and V signals, respectively, and accordingly, the conductive terminals connected to the lead wires connected to the RA electrodes are also It should be the conductive terminal that transmits the RA signal (or the pin connected to this conductive terminal is the pin that transmits the RA signal), thus avoiding the situation where the ECG test host cannot display or work normally.

It should be noted that, in the embodiment of the present invention, the ECG lead wire 100 further includes a wire harness 60 having a plurality of wire holes independently and in an orderly arrangement, the at least two lead wires 20 corresponds to the line holes so as to be fixed together in order, so that wiring confusion caused by the different lead wires 20 being entangled or entangled with each other can be avoided.

Preferably, the plug 10 is an L-shaped plug.

Specifically, if there is another power-on interface (such as a USB interface, a DC interface, etc.) on the ECG test host, the ECG lead wire 100 is connected to the corresponding corresponding ECG test host. At the same time of the interface, if the other power-on interfaces are also connected by other cables, the other power-on interfaces have the risk of leakage to the ECG lead wire 100, thereby causing damage to the human body.

In the preferred embodiment, by designing the plug 30 in an L shape, the L-shaped socket 10 can block other energized connections when the ECG lead 100 is inserted, avoiding other cable insertions.

Preferably, as shown in Figures 8 and 9, in the preferred embodiment:

One side of the outer cover 14 is provided with an indicator 141, and the other side of the outer cover 14 is provided with an anti-slip area 142, and the anti-slip area 142 is provided with anti-slip bumps or anti-slip lines.

Specifically, the indicator 141 may be an inverted triangle, and the same symbol (such as an exclamation point) is disposed inside, which can be used to indicate the direction of insertion, thereby avoiding damage to the interface when the plug 10 is inserted in the reverse direction. .

The other side of the outer cover 14 is provided with an anti-slip area 142, and anti-slip bumps or anti-slip lines are arranged in the anti-slip area 142, which increases the friction force during insertion and removal, and facilitates the insertion and insertion of the plug 10. Pull out to avoid inconvenience caused by hand slippage.

In summary, the electrocardiographic lead wire 100 provided by the present invention is designed to be a plug 10 suitable for 5 lead or less than 5 lead collection mode, and through the plug 10 and the corresponding interface on the electrocardiograph test host. Connected to transmit the collected signals to the ECG test host. Since the number of conductive terminals required to be connected to the lead wires is small (only six), the volume of the plug 10 can be designed to be smaller relative to a conventional DB type or LEMO plug volume, correspondingly corresponding thereto. The volume of the interface is also smaller than that of the conventional interface, so that the occupation of the surface space of the ECG test host by the conventional USB interface can be reduced.

Referring to FIG. 10, an embodiment of the present invention further provides an electrocardiograph, which includes an electrocardiograph 200 and an ECG lead 100 according to any of the above embodiments. An interface 210 is provided, and the plug 10 on the ECG lead line is connected to the interface 210 on the ECG test host 200.

The above is only a preferred embodiment of the present invention, and of course, the scope of the present invention is not limited thereto, and those skilled in the art can understand all or part of the process of implementing the above embodiments, and Equivalent variations of the utility model claims are still within the scope of the invention.

Claims

An electrocardiographic lead wire, comprising: a plug and at least two lead wires, wherein the plug comprises a plug connector and six conductive terminals, and one end of the six conductive terminals is fixed in the plug connector The at least two lead wires are electrically connected to the other end of the conductive terminal.
The electrocardiographic lead wire according to claim 1, wherein a distance between one end of the conductive terminal and the socket of the plug connector is 1.0-3.0 mm.
The electrocardiographic lead wire according to claim 1 or 2, wherein the six conductive terminals are arranged in parallel, and the distance between adjacent two conductive terminals is 0.8-2.5 mm.
The electrocardiographic lead wire according to claim 1 or 2, wherein the plug connector is made of an insulating material, and the socket of the plug connector has a height of 0.5 to 2.5 mm, and the length of the socket is 6.0. -12.0 mm.
The electrocardiographic lead wire according to claim 1, wherein the plug further comprises a printed circuit board and a cover made of an insulating material, and the other end of the conductive terminal is disposed on the printed circuit board, and Electrically connected to the printed circuit board, the at least two lead wires are electrically connected to the other end of the conductive terminal through the printed circuit board, the cover is connected to the plug connector, and the printed circuit board is covered.
The electrocardiographic lead wire according to claim 1, wherein a stopper member made of an insulating material is disposed in the plug connector, the stopper member has a cavity, and a side wall of the cavity Provided with six limiting holes corresponding to the six conductive terminals; one end of the conductive terminal forms a bent portion, and the bent portion passes through the limiting hole and is located in the cavity Inside.
The electrocardiographic lead wire according to claim 1, wherein the electrocardiographic lead wire further comprises a main cable and a splitter, one end of the main cable is connected to the plug, and the other end of the main cable is connected. One end of the splitter, the other end of the splitter is connected to the at least two lead wires, and the cores in the at least two lead wires are bundled to the main body via the splitter Inside the cable, and after extending one end of the main cable, electrically connected to the other end of the conductive terminal.
The electrocardiographic lead wire according to claim 5, wherein one side of the outer cover is provided with an indicator mark, and the other side of the outer cover is provided with an anti-slip area, and the anti-slip area is provided with anti-slip bumps or Anti-slip pattern.
The electrocardiographic lead wire according to claim 1, wherein the plug is an L-shaped plug.
An electrocardiograph, comprising: an electrocardiograph, and an electrocardiographic lead according to any one of claims 1-9, wherein the electrocardiograph is provided with an interface, the ECG lead The plug on the line is connected to the interface on the ECG test host.