WO2018014512A1

WO2018014512A1 - Electrocardiography connecting cable and electrocardiograph machine

Info

Publication number: WO2018014512A1
Application number: PCT/CN2016/113245
Authority: WO
Inventors: 徐章龙; 肖冬毅
Original assignee: 广州视源电子科技股份有限公司
Priority date: 2016-07-20
Filing date: 2016-12-29
Publication date: 2018-01-25
Also published as: CN106129744A

Abstract

An electrocardiography connecting cable and an electrocardiograph. The electrocardiography connecting cable (100) comprises: a main cable (10), a cable splitter (20), a USB Type C plug (30), and at least one connecting wire (40). One end of the main cable (10) is connected to the USB Type C plug (30). The other end of the main cable (10) is connected to the cable splitter (20). The connecting wire (40) is connected to the cable splitter (20). A wire core of each of the connecting wires (40) is bundled, by means of the cable splitter (20), into the main cable (10), and is electrically connected to the USB Type C plug (30) after extending from one end of the main cable (10). The electrocardiograph uses the USB Type C plug (30) to connect to a USB Type C port (210), thereby reducing port occupancy and avoiding the issue of an excessively large port occupying a large surface area of the electrocardiograph. The connecting method based on the USB Type C plug (30) and USB Type C port (210) also improves data transmission speed, and further facilitates a plugging and unplugging operation.

Description

ECG lead wire and ECG tester

Technical field

The invention relates to the field of electrocardiogram testing, in particular to an electrocardiogram lead wire and an electrocardiograph.

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.

The plugs used in traditional ECG lead wires are mostly DB type or LEMO plugs. Correspondingly, 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 type interface or the LEMO female head, for some small portable or handheld ECG test hosts, there may not be enough space to arrange these interfaces, or the interface is too large to affect the ECG test. The overall design of the mainframe.

In addition, there are also some ECG lead wires that attempt to use a USB plug instead of a conventional DB type or LEMO plug. For example, CN202198593U discloses a lead device, and specifically discloses a plug using a USB plug as a lead device. However, the ordinary USB plug and USB interface are still relatively large on the one hand. On the other hand, the ordinary USB plug needs the correct insertion direction when inserted into the USB interface. If it is not inserted in the correct direction, it is easy to cause the plug or interface. The conductive terminals inside are damaged. In addition, the data transmission speed between the ordinary USB plug and the USB interface is also slow, and signal delay may occur during monitoring, so that the user cannot obtain the monitoring data in time, and thus cannot make an effective judgment.

Summary of the invention

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

The invention provides an electrocardiographic lead wire comprising a main cable, a splitter, a USB Type C plug and at least one lead wire; one end of the main cable is connected to the USB Type C plug, and the main cable is another One end is connected to the splitter, the lead wire is connected to the splitter, and a core in each lead wire is bundled into the main cable via the splitter, and is extended One end of the main cable is electrically connected to the USB Type C plug.

Preferably, the USB Type C plug includes a metal casing, an insulative housing, at least two conductive terminals, a printed circuit board and a package, the insulative housing is disposed in the metal casing, and the conductive terminals are symmetrically disposed on the On opposite inner sidewalls of the insulative housing; the printed circuit board is disposed between the metal housing and the main cable, and one end of the printed circuit board is electrically connected to the conductive terminal, the printed circuit The other end of the board is electrically connected to a core within the main cable; the package encases the printed circuit board.

Preferably, the USB Type C plug further includes a connecting member disposed between the metal casing and the package, the connecting member having a first sidewall and a second sidewall parallel to the metal casing, a first groove is defined in the first sidewall, a second groove is defined in the second sidewall, and the first groove and the second groove are symmetric with respect to the metal casing.

Preferably, the USB Type C plug is an L-type plug.

Preferably, the USB Type C plug further includes a connector disposed between the metal casing and the package, the connector having a third sidewall parallel to the casing, the third sidewall A third groove is opened.

Preferably, the surface of the package is further provided with a convex direction indicator.

Preferably, the surface of the package is provided with an anti-slip area, and the anti-slip area is provided with anti-slip bumps or anti-slip lines.

The invention also provides an electrocardiograph, comprising an electrocardiograph test host and the above-mentioned ECG lead wire, wherein the ECG test host is provided with a USB Type C interface, and the USB Type C plug on the ECG lead wire Access the USB Type C interface on the ECG test host.

Preferably, the ECG test host further includes two protrusions disposed on opposite sides of the USB Type C interface, and the two protrusions are symmetric about the USB Type C interface.

Preferably, the ECG test host further includes a protrusion disposed on one side of the USB Type C interface.

The ECG lead wire and the ECG tester provided by the present invention are designed to be collected by designing the USB Type C plug and using the USB Type C plug to connect with a corresponding USB Type C interface on the ECG test host. Signal transmission Lost to the ECG test host. Compared with the prior art, the embodiment of the invention has the following beneficial effects:

1. Since the USB Type C plug is smaller than the conventional USB plug, the volume of the corresponding USB Type C interface is smaller than that of the conventional USB interface, so that the USB Type C interface can be used. The small traditional USB interface occupies the surface space of the ECG test host.

2. The insertion of the USB Type C plug is non-directional, that is, the USB Type C plug can be inserted into the USB Type C interface on the front side or the USB Type C interface on the reverse side, thus facilitating the operation of the user and avoiding Damage to the conductive terminals or the pin ports in the connectors caused by improper insertion.

3. Based on the connection mode of USB Type C plug and USB Type C interface, it has faster data transmission speed, which enables the collected signals to be transmitted to the ECG test host in a timely and rapid manner to ensure timely data transmission.

DRAWINGS

In order to more clearly illustrate the technical solutions of the present invention, 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, which are common in the art. For the skilled person, other drawings can be obtained from these drawings without any creative work.

FIG. 1 is a schematic structural diagram of an electrocardiographic lead wire according to an embodiment of the present invention.

2 is a schematic cross-sectional view of the lead wire of FIG. 1.

3 is a schematic cross-sectional view of the main cable of FIG. 1.

4 is a front elevational view of the USB Type C plug of FIG. 1.

FIG. 5 is a schematic diagram of a signal connection of the USB Type C plug of FIG. 1. FIG.

Figure 6 is a front elevational view of the USB Type C interface.

7 is a schematic diagram of another signal connection of the USB Type C plug of FIG. 1.

FIG. 8 is a schematic structural diagram of a USB Type C plug according to a preferred embodiment of the present invention.

FIG. 9 is a schematic structural diagram of a USB Type C plug according to a preferred embodiment of the present invention.

FIG. 10 is a schematic structural diagram of a USB Type C plug according to a preferred embodiment of the present invention.

FIG. 11 is a schematic structural diagram of a USB Type C plug according to a preferred embodiment of the present invention.

FIG. 12 is a schematic structural diagram of an electrocardiograph according to an embodiment of the present invention.

FIG. 13 is a schematic structural diagram of an electrocardiograph according to a preferred embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying 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, but not all embodiments. Based on the invention All of the other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present invention.

Referring to FIG. 1 , an embodiment of the present invention provides an ECG lead 100 including a main cable 10 , a splitter 20 , a USB Type C plug 30 , and at least one lead wire 40 . One end of the main cable 10 is connected to the USB Type C plug 20, the other end of the main cable 10 is connected to the splitter 20, and the lead wire 40 is connected to the splitter 20, and each strip The cores in the lead wires 40 are bundled into the main cable 10 via the splitter 20, and are electrically connected to the USB Type C plug 30 after extending one end of the main cable 10.

Referring to FIG. 2 together, in the embodiment of the present invention, the lead wire 40 includes a conductor 41, an insulating layer 42 enclosing the conductor 41, a first semi-conductive layer 43 enclosing the insulator 42, and the package. a first shielding layer 44 of the first semi-conductive layer 43 and a first sheath 45 encasing the first shielding layer 44, wherein the conductor 41 and the insulating layer 42 form the core.

It should be noted that, in the embodiment of the present invention, each of the lead wires 40 is further connected with an electrode 50, and the electrode 50 is fixed to a designated position of the human body (such as a heart, a chest, etc.) to collect the designation of the human body. The signal of the location. The electrode 50 may be in the form of a sheet, a clip or the like, and is not specifically limited in the present invention.

It should be noted that, in the embodiment of the present invention, the number of the electrodes 50 and the lead wires 40 can be designed according to actual needs, for example, commonly used three-lead, 5-lead or 12-lead collection methods. To collect the ECG signal of the human body; among them, the ECG lead wire suitable for the 3-lead acquisition mode is usually provided with RA, LA and LL electrodes (corresponding to 3 lead wires 40); suitable for 5-lead collection mode The ECG lead wire is provided with RA, LA, LL, RL and V electrodes (corresponding to 5 lead wires 40); and the ECG lead wire suitable for 12-lead collection mode is generally provided with RA, LA, LL , RL, V, V+ and V1 to V6 electrodes (corresponding to 12 lead wires 40).

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, and the lead wires 40 pass through. The wire holes are thus fixed together in order, so that wiring confusion caused by the different lead wires 40 being entangled or wound with each other can be avoided.

In the embodiment of the present invention, the splitter 30 has at least two wiring ports and one outlet port, wherein the core of each of the lead wires 40 enters the splitter 30 from the wiring port. After being bundled in the splitter 30, it is taken out from the outlet and accessed from the other end of the main cable 10 into the main cable 10.

Specifically, please refer to FIG. 3, in the embodiment of the present invention, the innermost layer of the main cable 10 is a second semi-conductive layer 11, and the second semi-conductive layer 11 forms a cavity for accommodating The wire core. A second shielding layer 12 and a second sheath 13 are sequentially wrapped outside the second semiconductive layer 11 .

It should be noted that, in the embodiment of the present invention, a filling layer 14 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 10 is routed inside the main cable 10, and after being extended from one end of the main cable 10, is electrically connected to the USB Type C plug 30.

Specifically, please refer to FIG. 4, in the embodiment of the present invention, the USB Type C plug 30 includes a metal casing 31, an insulative housing 32, at least two conductive terminals 33, a printed circuit board (not shown), and a package. The insulative housing 32 is disposed in the metal housing 31, and the conductive terminals 33 are symmetrically disposed on opposite inner sidewalls of the insulative housing 32. The printed circuit board is disposed between the metal casing 31 and the main cable 10, and the printed circuit board is electrically connected to the conductive terminals 33 and the cores in the main cable 10, respectively. A piece 34 wraps the printed circuit board.

In the embodiment of the present invention, as shown in FIG. 5, preferably, the USB Type C plug 30 includes 24 conductive terminals 33 symmetrically distributed on opposite inner sidewalls of the insulative housing 32. (12 per side). When the USB Type C plug 30 is inserted into the USB Type C interface, these conductive terminals 33 will respectively be connected to the pin ports in the USB Type C interface (such as the A1-A12 pin port and the B1-B12 pin in FIG. 6). The port is electrically connected to achieve signal transmission.

It should be noted that, in the embodiment of the present invention, since the signal transmitted by each pin port is fixed, when the wire core and the conductive terminal are connected, it is required to be based on the conductive terminal and the pin port. Connect the corresponding relationship to ensure the normal transmission of the signal. As shown in FIG. 5, the signal is transmitted from the core to each of the conductive terminals. Therefore, when the conductive terminal is electrically connected to the core, a connection as shown in FIG. 5 is required. For example, if a core transmits a V IN signal, it should be connected to the A11 conductive terminal and the B11 conductive terminal, respectively. For the connection of other cores and conductive terminals, refer to FIG. 5.

Of course, as shown in FIG. 7, the ordering of the conductive terminals in the USB Type C plug 30 can be sorted according to actual needs, but it is necessary to ensure that the signals (or networks) corresponding to A1-A12 and B1-B12 are consistent, thereby achieving positive and negative Plug in the effect.

In summary, the ECG lead 100 provided by the embodiment of the present invention is designed by connecting the USB Type C plug 30 and using the USB Type C plug 30 to connect with a corresponding USB Type C interface on the ECG test host. To achieve transmission of the collected signals to the ECG test host. Compared with the prior art, the embodiment of the invention has the following beneficial effects:

1. The USB Type C plug is smaller than the conventional USB plug. Correspondingly, the volume of the corresponding USB Type C interface is smaller than that of the conventional USB interface. Thus, the USB Type C interface can be used to reduce the size. The traditional USB interface occupies the surface space of the ECG test host. .

2. The insertion of the USB Type C plug 30 is non-directional, that is, the USB Type C plug 30 can be inserted into the USB Type C interface on the front side or the USB Type C interface on the reverse side, thus facilitating the user's operation and Avoid damage to the conductive terminals or the pin ports in the connectors due to improper insertion.

3, based on the connection mode of USB Type C plug and USB Type C interface, with faster data transmission speed, this The signal collected by the electrode 50 can be transmitted to the ECG test host in a timely and rapid manner to ensure timely transmission of data.

In order to facilitate an understanding of the present invention, some preferred embodiments of the present invention are further described below.

First preferred embodiment:

Referring to FIG. 8 together, in the preferred embodiment, the USB Type C plug 30 further includes a connecting member 35 disposed between the metal casing 31 and the package member 34. The connecting member 35 has a The first side wall and the second side wall of the metal casing 31 are parallel, the first side wall is provided with a first groove 351, and the second side wall is provided with a second groove 352, and the The first groove 351 and the second groove 352 are symmetrical about the metal casing 31.

Specifically, in order to prevent other universal USB Type C plugs from being connected to the USB Type C interface on the ECG test host corresponding to the USB Type C plug 30 of the present invention, the ECG test host is damaged. a first groove 351 is defined in the first side wall of the connecting member 35, and a second groove 352 is defined in the second side wall (corresponding to a corresponding one on the ECG test host) There are two bumps on both sides of the USB Type C connector). Thus, when the USB Type C plug 30 is inserted into the corresponding USB Type C interface, the first recess 351 and the second recess 352 are exactly matched with the two protrusions, so that the USB The Type C plug 30 can smoothly access the USB Type C interface. The other universal USB Type C plugs are not provided with a groove, and after being inserted into the USB Type C interface to a certain extent, they will be resisted by the two protrusions, and thus cannot be fully inserted into the USB Type C interface. Therefore, other universal USB Type C plugs are prevented from being connected to the USB Type C interface.

In addition, since the first groove 351 and the second groove 352 are symmetric with respect to the metal casing 31 (correspondingly, the two protrusions are also symmetrically designed), the USB Type C plug 30 is still The effect of positive and negative insertion is retained.

A second preferred embodiment.

As shown in FIG. 9, 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 USB Type C interface. At the same time, if other energized interfaces are also connected by other cables, the other energized interfaces have the risk of leakage to the ECG lead wire 100, thereby causing damage to the human body.

To this end, preferably, the USB Type C plug is an L-type plug.

In the preferred embodiment, by designing the USB Type C plug 30 of the ECG lead 100 into an L shape, the L-shaped USB socket 30 can block other energization when the ECG lead 100 is inserted. Interface to avoid other cable insertion.

A third preferred embodiment.

For the second preferred embodiment, as shown in Figure 9, in the preferred embodiment:

The USB plug 30 further includes a connecting member 35 disposed between the metal casing 31 and the package member 34, the connecting member 35 having a third side wall parallel to the metal casing 31, the third The side wall is provided with a third recess 353.

In the preferred embodiment, since the third groove 353 is opened only on the third side wall of the connecting member 35 (correspondingly, one side of the USB Type C interface is designed to be the protrusion), The USB Type C plug 30 can be inserted into the USB Type C interface in only one direction, and this direction is such that the USB Type C plug 30 of the L-shape can block other power-on interfaces. In this way, the occlusion of the other power-on interfaces caused by the insertion of the USB Type C plug 30 in the reverse direction is avoided, wherein the position of the third groove 353 is set by the relative position of the USB Type C interface and other power-on interfaces. Relationship decision.

A fourth preferred embodiment.

For the second preferred embodiment, as shown in Figure 10, in the preferred embodiment:

The surface of the package 34 is also provided with a convex direction indicator 341.

Specifically, the direction indicator 341 of the protrusion may be in the shape of an inverted triangle or an arrow, which may be used to indicate the direction of insertion, and avoid the loss of blocking of other power-on interfaces caused by the insertion of the USB Type C plug 30 in the reverse direction. The role of the direction indicator 341 is determined by the relative positional relationship between the USB Type C interface and other power-on interfaces.

A fifth preferred embodiment.

As shown in Figure 11, in the preferred embodiment:

The surface of the package member 34 is provided with an anti-slip area 342, and the anti-slip area 342 is provided with anti-slip bumps or anti-slip lines.

In the preferred embodiment, the anti-slip region 342 is disposed on the surface of the package member 34, and anti-slip bumps or anti-slip lines are disposed in the anti-slip region 342 to facilitate the insertion of the USB Type C plug 30. Pull out to avoid inconvenience caused by hand slippage.

Referring to FIG. 12, an embodiment of the present invention further provides an electrocardiograph, which includes an ECG test host 200 and an ECG lead 100 according to any of the above embodiments. There is a USB Type C interface 210, and the USB Type C plug 30 on the ECG lead line is connected to the USB Type C interface 210 on the ECG test host 200.

Preferably, for the first preferred embodiment described above, the ECG test host 200 further includes two protrusions 211 disposed on opposite sides of the USB Type C interface 210, and the two protrusions 211 The USB Type C interface 210 is symmetric.

Preferably, referring to FIG. 13 , for the third preferred embodiment described above, the ECG test host further includes a protrusion 212 disposed on one side of the USB Type C interface 210.

In summary, the ECG tester provided by the embodiment of the present invention designs the USB Type C plug 30 and utilizes the USB Type C plug 30 and the corresponding USB Type C interface 210 on the ECG test host 200. Connected to transmit the collected signals to the ECG test host 200. Compared with the prior art, the embodiment of the invention has the following beneficial effects:

1. The USB Type C plug is smaller than the conventional USB plug. Correspondingly, the volume of the corresponding USB Type C interface is smaller than that of the transmitted USB interface. Thus, the USB Type C interface can be used to reduce the size. The traditional USB interface occupies the surface space of the ECG test host.

2. The insertion of the USB Type C plug 30 is non-directional, that is, the USB Type C plug 30 can be inserted into the USB Type C interface 210 on the front side or the USB Type C interface 210 on the reverse side, thus facilitating the operation of the user. It can also avoid damage to the conductive terminals or the pin ports in the interface due to improper insertion.

3. Based on the connection mode of the USB Type C plug 30 and the USB Type C interface 210, the data transmission speed is faster, which enables the signal collected by the electrode 50 to be transmitted to the ECG test host in a timely and rapid manner to ensure data. Timely transmission.

The above disclosure 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 according to the present invention. The equivalent changes required are still within the scope of the invention.

Claims

An electrocardiographic lead wire, comprising: a main cable, a splitter, a USB Type C plug and at least one lead wire; one end of the main cable is connected to the USB Type C plug, and the main cable is another One end is connected to the splitter, the lead wire is connected to the splitter, and a core in each lead wire is bundled into the main cable via the splitter, and is extended One end of the main cable is electrically connected to the USB Type C plug.
The ECG lead wire according to claim 1, wherein the USB Type C plug comprises a metal casing, an insulative housing, at least two conductive terminals, a printed circuit board and a package, and the insulative housing is disposed on the The conductive terminals are symmetrically disposed on opposite inner sidewalls of the insulative housing; the printed circuit board is disposed between the metal housing and the main cable, and the printed circuit board is One end is electrically connected to the conductive terminal, and the other end of the printed circuit board is electrically connected to a core in the main cable; the package wraps the printed circuit board.
The electrocardiographic lead wire according to claim 2, wherein the USB Type C plug further comprises a connecting member disposed between the metal casing and the package, the connecting member having the metal a first side wall and a second side wall, wherein the first side wall is open with a first groove, the second side wall is provided with a second groove, and the first groove is The second groove is symmetrical about the metal casing.
The electrocardiographic lead wire according to any one of claims 1 to 3, wherein the USB Type C plug is an L-type plug.
The electrocardiographic lead wire according to claim 2, wherein the USB Type C plug further comprises a connecting member disposed between the metal casing and the package, the connecting member having the metal The third side wall of the outer casing is parallel, and the third side wall is provided with a third groove.
The electrocardiographic lead wire according to claim 4, wherein the surface of the package is further provided with a convex direction indicator.
The electrocardiographic lead wire according to any one of claims 2, 3 or 5, wherein the surface of the package is provided with an anti-slip area, and the anti-slip area is provided with anti-slip bumps or anti-slip lines.
An electrocardiograph, comprising: an electrocardiograph, and an ECG lead according to any one of claims 1 to 7, wherein the ECG test host is provided with a USB Type C interface, The USB Type C plug on the ECG lead wire is connected to the USB Type C interface on the ECG test host.
The electrocardiograph according to claim 8, wherein the ECG test host further comprises two protrusions disposed on opposite sides of the USB Type C interface, and the two protrusions are The USB Type C interface is symmetric.
The electrocardiograph according to claim 8, wherein the ECG test host further comprises a protrusion disposed on one side of the USB Type C interface.