JPH059508U - Electrocardiograph - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide an electrocardiograph (particularly a portable electrocardiograph) that can safely measure an electrocardiogram without the risk of electric shock. [Structure] An external device connection socket 15 and an electrode connection socket 16 are arranged close to each other, and when either one of the sockets 15 and 16 is connected to a corresponding connector 20 or 30, the other is held in a shielded state. A slide shield plate 17 that slides between the sockets 15 and 16 along the inner wall of the case 10 is supported by a holding plate 18. The socket 15 is used for measuring an electrocardiogram, the socket 16 is used for outputting to an external device, and the slide shield plate 17 is used.
Therefore, the corresponding connector 20 or 30 cannot be connected because it is held in a connection disabled state.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention, as a safety measure for the person who measures the electrocardiogram, measures the electrocardiogram and uses an external device. Electrocardiograph (especially for portable Electric meter).

[0002]

[Prior art]

  In recent years, at home, such as Holter electrocardiograph and telephone transmission of electrocardiogram, Measure and record the diagram, send it to a specialized institution such as a hospital, and reproduce the ECG waveform there ・ Evaluation has started to take place. For example, an electronic Holter monitor Has a memory that can record the electrocardiographic waveform for 1 to several tens of minutes, and uses an electrocardiograph externally. The electrocardiographic waveform for a certain period of time is recorded in the memory by operating from. This record information The information is reproduced on a simple display attached to the Holter electrocardiograph, or more detailed Using the display function (including the pen writing function) of another stationary electrocardiograph that enables To reproduce.

[0003]

[Problems to be solved by the device]

  In the case of an electrocardiograph that detects electrical signals of the body, especially the heart, electricity is supplied from outside the electrocardiograph. If pressure is mixed in, the person being measured may get an electric shock and suffer a serious accident. Safety is especially important. As a measure against electric shock, complete grounding Good, but portable electrocardiographs like the Holter monitor are always groundable It is not always used in the place, and it is troublesome to ground one by one, It is not always used under the supervision of It is indispensable for giving the highest priority to safety.

[0004]   By the way, when outputting the contents recorded in the electrocardiograph to an external device, the power supply of the external device In many cases, a commercial AC power supply is used in the. Electrocardiogram measurement and external device The timing with the output is almost always different, but this is not guaranteed. However, the measurement and output should be performed when evaluating the waveform of a portable electrocardiograph or when explaining the handling. Power is performed at almost the same timing. Also, if necessary, actively measure and output It may be desired that the two occur simultaneously. In such a case, the external device may There is a risk of electric shock to the person being measured due to a serious failure or mixing of lightning surges from the AC power line. Occurs. As a specific example, in FIG. 4, the measurement subject M uses the portable electrocardiograph 61. The ECG is measured at the same time, and at the same time, it is connected to the electrocardiograph 61 by a telephone line or the like. When outputting an electrocardiogram to the recorder 62 of the device, a failure of an external device including the recorder 62 or By the surge of the commercial AC100V power received from the plug 63 of the recorder 62, There is a risk that the person M to be measured will get an electric shock along the route shown in FIG.

[0005]   Therefore, the object of the present invention is to carry out the electrocardiographic measurement without any risk of electric shock. It is to provide an electrocardiograph (particularly a portable electrocardiograph).

[0006]

[Means for Solving the Problems]

  The above object is achieved by the electrocardiograph of the present invention. That is, the electrocardiograph of the present invention Electrode terminal connection part to connect the pole terminal and external output terminal connection to connect the external output terminal Part of the electrocardiograph that has a connection part, connect the corresponding terminal to either one of the connection parts. Characterized by having a connection blocking means for making the other connection part in a connection-disabled state when continued And

[0007]   With this configuration, for example, if an electrode terminal is connected to the electrode By this means, the external output terminal connection part becomes unconnectable, The output terminal cannot be plugged in. On the contrary, the external output terminal connection part is When it is turned on, the electrode terminal connecting portion becomes in a connection-disabled state. Therefore, both terminals are compatible They cannot coexist in the connection part, and only one of the terminals can be used when used. Cannot be attached to the sequel. By doing this, connection with an external device is possible when measuring the electrocardiogram. It becomes impossible, and when the signal is exchanged with an external device, the person to be measured is linked to the electrocardiograph. Doing so will prevent the person being measured from an electric shock due to a failure of external equipment or a surge of commercial power. It is protected.

[0008]   In the electrocardiograph of the present invention, the connection preventing means is the electrode terminal connection portion and the external output terminal connection. It suffices to make either one of the connecting parts in the unconnectable state. There is no particular limitation on the function for making the connection impossible. However, When the structure is mechanically simple and highly reliable, as described in the following examples, Place the pole terminal connection part and the external output terminal connection part in close proximity to each other, and then When the corresponding terminal is connected to one of the connection parts, the other connection part is in the shielded state It is preferable that the connection blocking means is a slide shield plate that slides between both connection portions.

[0009]

【Example】

  Hereinafter, the electrocardiograph of the present invention will be described based on examples.   1 is an external perspective view of a portable electrocardiograph according to the embodiment, and FIG. 2 is an electrocardiograph of FIG. 3 is an enlarged view of the electrode terminal connecting portion and the external output terminal connecting portion in FIG. This electrocardiograph is Functionally, it is not much different from the conventional one, with operation switch 11 on the front panel, heart rate, etc. The liquid crystal display 13 having the display function 12 is arranged, and the waveform of the electrocardiogram is shown on the upper side. Memory switch 14 and a cylindrical external device connection socket that serves as an external output terminal connection part 15 and a rectangular electrode connection socket 16 serving as an electrode terminal connection portion are provided. As can be seen, the sockets 15, 16 are arranged close together.

[0010]   In FIG. 2, a connector (external output terminal) for connecting to an external device such as a recorder ) External device connection socket 15 for inserting 20 and an electrode having three electrodes 31 The electrode connecting socket 16 for inserting the electrode connecting connector (electrode terminal) 30 is Each is attached to the case 10 of the electrocardiograph in such a manner that it projects inside. this The openings of the sockets 15 and 16 are slightly spaced along the inner wall of the case 10. Are separated from each other, and the slide shield plate 17 as the connection blocking means is arranged at this interval. It is placed. The slide shield plate 17 corresponds to the separation distance between the sockets 15 and 16. Supported by a retaining plate 18 attached to the inner wall of the case 10 with a corresponding gap Through the gap of the holding plate 18 and the separation gap of the socket (in the direction of the arrow). It can slide relatively freely in the left-right direction. The slide shield plate 17 is shown in the figure. When the electrode connection socket 16 side is moved to the maximum like It has a size that shields all.

[0011]   The internal circuit configuration of the electrocardiograph 1 is almost the same as that of a normal one. As shown in the lock diagram, the electrocardiograph 1 includes an amplifier (an amplifier for amplifying an electrocardiographic pulse of the heart). 41), a filter 42 for removing noise other than the electrocardiographic waveform, and an analog signal A / D converter 43 for converting into a digital signal, and digitized electrocardiographic waveform information CPU 44 that takes in a digital signal and D- that restores a digital signal into an analog electrocardiographic waveform An A converter 45, a memory 46 for recording an electrocardiographic waveform and an operation program, and a power source And the battery 47.

[0012]   When the person M to be measured measures an electrocardiographic waveform using the portable electrocardiograph 1, a finger, etc. Move the slide shield 17 to the external device connection socket 15 side (right side) , The socket 15 is shielded and the electrode connection socket 16 is opened. It Here, if the electrode connector 30 is inserted into the socket 16, the three electrodes 31 And the electrocardiograph 1 are connected, and an electrocardiogram can be measured. At this time, socket 16 Since the connector 30 and the connector 30 are in the connected state, the shield plate 17 cannot move to the left. Holds socket 15 unplugged at the same time blocked by connector 30 It

[0013]   Next, the electrocardiographic information recorded in the memory 46 of the electrocardiograph 1 is installed in a specialized institution such as a hospital. Output to the recorder 5 of the external device, and display the electrocardiographic waveform on the recorder 5. As shown in FIG. The recorder 5 has the same configuration as the conventional one, and the analog signal from the electrocardiograph 1 is also used. Amplifier 51 for amplifying the signal and a display 52 for displaying the obtained signal waveform And a power source 53. The power source 53 is a commercial AC 100V power source with a plug 54. receive. Further, the input side of the recorder 5 is a socket for connecting to the output side of the electrocardiograph 1. 55 is provided. The display 52 may be displayed on the screen or printed on the paper. It may be printed and is not specified.

[0014]   In this way, the electrocardiograph 1 and the remote recorder 5 of an external device are connected by a telephone line or the like. If you want to output the measured ECG measurement waveforms to the recorder 5, Move the slide shield 17 to the socket 16 side (left side) to open the socket 15. Then, the socket 16 is shielded. Next, disconnect the external device connector 20 When the card is inserted into the racket 15, the preparation for signal exchange between the electrocardiograph 1 and the recorder 5 is completed. At this time, the shield plate 17 cannot be moved to the socket 15 side by the connector 20. Thus, the socket 16 is kept in an unconnectable state.

[0015]   As described above, the electrocardiograph 1 and the recorder 5 are used when measuring the electrocardiogram, and the signal is transmitted and received when the electrocardiogram is recorded. Since the measurer M and the electrocardiograph 1 cannot be connected to each other, in either case, for example, a thunder sir The surge voltage reaches the person to be measured M even if the power source enters the AC100V line. Is not possible, and the electric shock of the person M to be measured is completely prevented.

[0016]

[Effect of device]

  As described above, the electrocardiograph of the present invention has the electrode terminal connection portion and the external output terminal connection. With connection blocking means that keeps either one of the connection parts unconnected at all times Therefore, the electrode terminals and external output terminals cannot coexist in their corresponding connection parts, and At the time of use, only one of the terminals can be connected to the corresponding connection part.

[0017]   Therefore, even if a failure occurs in the external device or a surge occurs in the AC power supply, the There is no electric shock to the measurer, and the electrocardiograph can be used with peace of mind.

[Brief description of drawings]

FIG. 1 is an external perspective view of a portable electrocardiograph according to an embodiment of the present invention.

FIG. 2 is an enlarged view of an electrode terminal connecting portion and an external output terminal connecting portion in the electrocardiograph of FIG.

3 is a block diagram showing an internal circuit configuration of the electrocardiograph of FIG. 1 and a connection configuration of the electrocardiograph and the recorder of FIG.

FIG. 4 is an explanatory diagram showing a simplified connection configuration of an electrocardiograph and a recorder according to a conventional example.

[Explanation of symbols]

1 electrocardiograph 10 cases 15 External device connection socket (external output terminal connection part) 16 electrode connection socket (electrode terminal connection part) 17 Slide shield (connection prevention means) 18 Holding plate 20 External device connector (external output terminal) 30 electrode connector (electrode terminal) 31 electrodes

Claims (2)

[Scope of utility model registration request] 1. An electrocardiograph having an electrode terminal connecting portion for connecting an electrode terminal and an external output terminal connecting portion for connecting an external output terminal, wherein a corresponding terminal is connected to either one of the connecting portions. An electrocardiograph, characterized in that it has a connection blocking means that renders the other connection part in a non-connectable state when the connection is made. 2. In the electrocardiograph, the electrode terminal connecting portion and the external output terminal connecting portion are arranged close to each other, and the connection preventing means connects a corresponding terminal to either one of the connecting portions. The electrocardiograph according to claim 1, wherein the electrocardiograph is a slide shield plate that slides between the two connecting portions so that the other connecting portion is sometimes in a shielded state.