JP2746239B2 - Biological information recording device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a biological information recording device for continuously recording biological information for a long time,
In particular, the present invention relates to a biological information recording device having a function of detecting and displaying an arrhythmia from an electrocardiogram obtained as biological information.

[0002]

2. Description of the Related Art A biological information recording device that continuously records biological information for a long time is installed in an intensive care unit or the like in a hospital, and acquires and manages biological information such as an electrocardiogram of a patient. The obtained biological information is used for examining changes in the condition and effects of administration of the drug.

Conventionally, this kind of biological information recording apparatus has a method of outputting an electrocardiogram at the input time by inputting time information by an operator when searching for an electrocardiogram at the time of occurrence of arrhythmia, In general, a method of outputting a corresponding position in an electrocardiogram by instructing a change position such as the number of occurrences of ventricular extrasystoles or the heart rate of the patient has been generalized. In order to search for the position of the irregular pulse, the approximate position of occurrence of the irregular pulse was searched as described above, and the operator visually searched for the exact position of occurrence of the irregular pulse based on the output electrocardiogram. Alternatively, an electrocardiogram in all the courses is output without estimating the arrhythmia occurrence position, and the operator views the output electrocardiogram to search for the position of the irregular pulse.

[0004] As a prior art of this kind of biological information recording apparatus, for example, Japanese Utility Model Publication No. Sho 62-174506.
There is a technology described in the issue “Portable ECG Information Recording Device”. According to the document, the electrocardiogram waveform was recorded on a magnetic tape or RAM.
There is disclosed a biological information recording device to be stored in a personal computer.
In this biological information recording device, the acquired electrocardiogram waveform is simply stored in chronological order. Then, when searching for an arrhythmia or the like, the stored electrocardiogram is read, the electrocardiogram is analyzed visually, and an abnormal occurrence position on the electrocardiogram is searched.

[0005]

However, the conventional biological information recording apparatus described above only follows the time series when storing the acquired electrocardiogram waveform, and the type of arrhythmia due to the combination of ventricular extrasystole and No distinction is made between names. Therefore, even if attention is paid to the number of occurrences of ventricular extrasystoles per unit time, there is a disadvantage that arrhythmias cannot be searched for by type. Here, the type of arrhythmia is a distinction between arrhythmia states such as a fast pulse or a sudden pulse.

Further, when the operator visually searches for the location of the occurrence of an irregular pulse based on the electrocardiogram over the entire course, the amount of information is enormous, so that there is a disadvantage that the search takes time.

It is an object of the present invention to provide a biological information recording apparatus which solves the above-mentioned conventional drawbacks and enables efficient search for arrhythmia without performing a visual search.

[0008]

A biological information recording apparatus according to the present invention, which achieves the above object, comprises a digital value indicating an electrocardiogram waveform divided at predetermined time intervals, and the presence / absence and type of arrhythmia related to the electrocardiogram waveform. Inputting a data sequence including an arrhythmia information code to be identified, recording means for storing the data sequence for each type of arrhythmia corresponding to the arrhythmia information code, and reading the data sequence stored in the recording means; Arrhythmia search processing means for searching for and displaying information on occurrence of arrhythmia for each type of arrhythmia.

In another preferred aspect, the recording means inputs the data sequence, and arrhythmia analysis information input means for dividing the data sequence into a digital value indicating the electrocardiogram waveform and the arrhythmia information code; While sequentially storing the digital values shown according to the acquired time,
An arrhythmia occurrence status storage unit that classifies and stores the arrhythmia information code for each type of arrhythmia.

In another preferred aspect, the arrhythmia search processing means detects an arrhythmia occurrence state based on the arrhythmia information code and displays the arrhythmia occurrence state based on a digital value indicating the electrocardiogram waveform. ECG display means for generating and displaying an ECG waveform.

In another preferred aspect, the arrhythmia occurrence status display means includes first arrhythmia display means for displaying the occurrence status of arrhythmia on a time axis, and a list of types of arrhythmia occurring at a predetermined time. And second arrhythmia display means.

In another preferred embodiment, the first arrhythmia display means displays the occurrence status of the arrhythmia in the form of a trend graph along the time axis for each type of arrhythmia.

In another preferred embodiment, the second arrhythmia display means displays the type of the arrhythmia occurring at a predetermined time and the occurrence time in a list format.

In another preferred embodiment, the arrhythmia search processing means acquires biological information other than information relating to an electrocardiogram waveform and arrhythmia, and displays the occurrence status of the arrhythmia by the arrhythmia occurrence status display means or the electrocardiogram display means. And a biological information display unit for displaying the acquired biological information together with the display of the electrocardiogram waveform by the computer.

Another biological information recording apparatus that achieves the above object monitors a patient, and at least includes a digital value indicating an electrocardiogram waveform and an arrhythmia information code for identifying the presence / absence and type of an arrhythmia related to the electrocardiogram waveform. A biological information obtaining unit that obtains biological information including the digital value indicating the electrocardiogram waveform and a data sequence delimited at predetermined time intervals including an arrhythmia information code and outputs the data sequence to a network line; and The data sequence is input, recording means for storing the data sequence for each type of arrhythmia corresponding to the arrhythmia information code, and reading the data sequence stored in the recording means, and information on occurrence of arrhythmia Arrhythmia search processing means for searching and displaying for each type; But it provided with arrhythmia status display means detecting and displaying the occurrence of arrhythmia based on the arrhythmia information code, and electrocardiogram display means for generating and displaying an electrocardiographic waveform based on the digital value indicative of the electrocardiogram waveform.

Another biological information recording apparatus that achieves the above object monitors a patient and at least converts a digital value indicating an electrocardiogram waveform and an arrhythmia information code identifying presence / absence and type of an arrhythmia related to the electrocardiogram waveform. A biological information obtaining unit that obtains biological information including the digital value indicating the electrocardiogram waveform and a data sequence delimited at predetermined time intervals including an arrhythmia information code and outputs the data sequence to a network line; and The data sequence is input, recording means for storing the data sequence for each type of arrhythmia corresponding to the arrhythmia information code, and reading the data sequence stored in the recording means, and information on occurrence of arrhythmia Arrhythmia search processing means for searching and displaying by type, and connecting to the network line , And a biometric information storage means for storing inputs biometric information other than information relating to the electrocardiogram waveform and arrhythmias which are output from the biometric information obtaining means.

In another preferred embodiment, the arrhythmia search processing means detects arrhythmia occurrence status based on the arrhythmia information code and displays the arrhythmia occurrence status based on the digital value indicating the electrocardiogram waveform. ECG display means for generating and displaying an ECG waveform, and acquiring biological information other than information relating to the ECG waveform and arrhythmia stored in the biological information storage means, and displaying the occurrence state of arrhythmia by the arrhythmia occurrence state display means Alternatively, there is provided a biological information display means for displaying the acquired biological information together with the display of the electrocardiogram waveform by the electrocardiogram display means.

[0018]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of a biological information recording device according to one embodiment of the present invention.

As shown in the figure, the biological information recording device 10 of the present embodiment receives and stores an electrocardiogram waveform as biological information, and displays various data based on the biological information stored in the recording unit 20. And an arrhythmia search processing unit 30 for searching for an arrhythmia in the electrocardiogram. The recording unit 10 is connected to a patient monitoring device 50 via a network line 40. The patient monitoring device 50 is connected to a biological information recording device 100 that accumulates information on blood pressure and respiratory waveforms in addition to the biological information recording device 10 of the present embodiment. It should be noted that FIG. 2 shows only the characteristic configuration of the present invention, and other configurations are omitted.

The patient monitoring device 50 monitors a patient to acquire biological information and sends the information to each biological information recording device via the network line 40. The acquired biological information includes at least an electrocardiogram waveform, the patient monitoring device 50 determines the type of arrhythmia based on the patient's electrocardiogram waveform, and obtains a digital value indicating the electrocardiogram waveform (hereinafter, referred to as electrocardiogram data); The arrhythmia information including a code indicating the presence / absence and type of the arrhythmia is transmitted to the network line 20. Here, as the electrocardiogram data, for example, a sampling frequency of 300 Hz
Can be used.

FIG. 2 shows the structure of data 41 transmitted from the patient monitoring device 50 to the network line 40. As shown, the data has a data sequence structure including a header 42, an arrhythmia information area 43 in which arrhythmia information is recorded, and an electrocardiogram data area 44 in which electrocardiogram data is recorded. In the example shown in the figure, the arrhythmia code indicating the presence or absence of arrhythmia and the type of detected arrhythmia is recorded in the arrhythmia information area 43 in units of 15 seconds, and the electrocardiogram data for the 15 seconds is recorded in the electrocardiogram data area 44. I have. Note that the unit of 15 seconds for creating the data sequence is merely an example, and other times such as 10 seconds, 30 seconds, and 1 minute may be used.

The recording unit 20 includes an arrhythmia analysis information input unit 21 connected to the network line 40 and inputting a data sequence 41, and an arrhythmia occurrence status storage unit 22 storing the input data sequence 41.

The arrhythmia analysis information input section 21 is realized by a data input interface, a CPU controlled by a program, and the like.
The arrhythmia occurrence status storage unit 2 receives the data sequence 41 sent to the unit 0 as arrhythmia occurrence information per unit time.
2 is stored. More specifically, the arrhythmia information code recorded in the arrhythmia information area 43 is classified according to the presence or absence and type of arrhythmia and stored in the arrhythmia occurrence status storage unit 22, and the electrocardiogram data recorded in the electrocardiogram data area 44 is stored. , And sequentially stores them in the arrhythmia occurrence status storage unit 22 in association with the arrhythmia information code of the data sequence 41.

The arrhythmia occurrence status storage section 22 is implemented by an information storage device having a relatively large storage capacity such as a magnetic disk device or an optical disk device.
The arrhythmia information code and the electrocardiogram data sent from 1 are stored. 3 and 4 are diagrams showing a file configuration of the arrhythmia occurrence status storage unit 22. As shown in FIG. 3, the arrhythmia information code is stored separately from the arrhythmia information code, that is, the presence / absence and type of arrhythmia, following the pointer information. In the storage area corresponding to each arrhythmia information code, the arrhythmia information code is sequentially stored for each unit time. The electrocardiogram data is, as shown in FIG.
Following the pointer information, the pointer information is sequentially stored for each unit time. Therefore, the file structure of the arrhythmia occurrence status storage unit 22 is determined in a time sequence.

As shown in FIG. 1, the arrhythmia search processing unit 30 includes an arrhythmia trend graph creating unit 31 for displaying an arrhythmia trend graph, and a position selecting unit 32 for designating a predetermined range in the arrhythmia trend graph. An arrhythmia list creating unit 33 for displaying an arrhythmia list, an arrhythmia selecting unit 34 for specifying a predetermined item in the arrhythmia list, and a living body for retrieving biological information recorded in another biological information recording device. An information search unit 35, a control unit 36 for controlling operation of each unit and displaying an electrocardiogram, and a display unit 37 for displaying various information under the control of each control unit and the like.
And

The arrhythmia trend display controller 31 is realized by a program-controlled CPU or the like. Then, in accordance with the control of the operation control unit 36, based on the arrhythmia information code stored in the arrhythmia occurrence status storage unit 22 of the recording unit 20, an arrhythmia trend graph indicating a global arrhythmia occurrence tendency is generated and generated. An arrhythmia trend graph is displayed on the display unit 37.

FIG. 6 is a diagram showing a display example of an arrhythmia trend graph. As shown, the arrhythmia trend graph 6
In the case of 0, a display column 61 is provided which displays a list of occurrence times for each type of arrhythmia, with the horizontal axis as time. Then, based on the arrhythmia information code read from the arrhythmia occurrence status storage unit 22, the arrhythmia occurrence status is displayed in the corresponding display column 61 using graphing software. By referring to the arrhythmia trend graph configured in this way,
The operator can easily know the tendency of arrhythmia to occur, such as what kind of arrhythmia occurs at what time interval and the like. Note that, in the example shown in the figure, the range of the time axis that can be displayed at one time is 24 hours, but may be shorter or longer.

The position selector 32 is realized by an input device such as a keyboard and a mouse. Then, in the arrhythmia trend graph 60 displayed on the display unit 37, a predetermined range in which the arrhythmia list is to be displayed is designated, and the display of the arrhythmia list is instructed. The designation of the range is performed by, for example, using a mouse to move an icon or a cursor (vertical dotted line in the figure) on the screen to the occurrence position of the arrhythmia of interest and clicking. Also, move the icons and cursor on the screen with the cursor movement switch on the keyboard,
The range can be selected by pressing the return key. As shown in FIG. 5, a date and time display column 62 is provided on the display unit 37, and the date and time corresponding to the cursor position in the arrhythmia trend graph 60 are displayed by numerical values, so that the range can be specified more accurately and easily. It becomes possible. In the illustrated example, the cursor is located at 6:40 on April 13.

The arrhythmia list creating unit 33 is realized by a CPU or the like controlled by a program. And the operation control unit 3
6, an arrhythmia list indicating a local arrhythmia occurrence state is generated based on the arrhythmia information code stored in the arrhythmia occurrence state storage section 22 of the recording section 20, and the generated arrhythmia list is displayed on the display section 37. To be displayed.

FIG. 7 is a diagram showing a display example of an arrhythmia list. As shown in the figure, the arrhythmia list 70 displays the name of the arrhythmia and the occurrence time in a list format. By referring to such an arrhythmia list, the operator can:
The type of arrhythmia occurring at the time can be easily known. The items of the arrhythmia to be displayed in the arrhythmia list can be obtained within a time range having an appropriate width before and after the time specified in the arrhythmia trend graph 60 by the position selector 32. In the example shown in the figure, the arrhythmia items are acquired in a range of 40 minutes before and after the designated time, April 13 at 6:40.

The arrhythmia selection section 34 is realized by an input device such as a keyboard and a mouse. Then, in the arrhythmia list 70 displayed on the display unit 37, an item for displaying an electrocardiogram waveform is designated. The specification of an item is performed by moving an icon or a cursor to a desired item by operating a keyboard or a mouse, and pressing or clicking a return key.

The biological information search section 35 is realized by a program-controlled CPU and an input device. Then, in accordance with a command input from the input device as necessary, other biological information recording devices are searched for biological information other than the electrocardiogram and arrhythmia information, read out, and displayed on the display unit 37.

The control unit 36 is a program-controlled CP.
U and so on. The control unit 36 receives the input from the position selection unit 32 and the arrhythmia selection unit 34 described above, controls the operations of the arrhythmia trend graph creation unit 31, the arrhythmia list creation unit 33, and the biological information search unit 35, and displays the display unit 37. To display the ECG waveform. More specifically, the arrhythmia information code stored in the arrhythmia occurrence status storage unit 22 of the recording unit 20 is read and sent to the arrhythmia trend graph creation unit 31 to create an arrhythmia trend graph. In addition, according to the instruction input from the position selection unit 32, the arrhythmia information code in the specified range is sent to the arrhythmia list creation unit 33,
Create an arrhythmia list. In addition, in accordance with an instruction input from the arrhythmia selection unit, an electrocardiogram waveform in an appropriate range including the arrhythmia of the item is generated and displayed on the display unit 37. In the display example shown in FIG. 7, a display column 71 for displaying an electrocardiogram waveform is provided above the arrhythmia list 70.

The display section 37 is realized by a display device such as a CRT display device or a liquid crystal display device. Then, various information is displayed under the control of the arrhythmia trend graph creating unit 31, the arrhythmia list creating unit 33, and the control unit 36 described above. In addition, as necessary, the biological information other than the electrocardiogram and the arrhythmia information searched by the biological information search unit 35 is displayed.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG.

First, when there is an instruction input for displaying an arrhythmia trend graph using an input device such as a keyboard, the control unit 36 reads an arrhythmia information code from the arrhythmia occurrence status storage unit 22 of the recording unit 20, and reads the arrhythmia information code. The trend graph creating unit 31 is controlled to display the arrhythmia trend graph on the display unit 37 (step 501).

Next, the position selecting section 32 selects an arrhythmia occurrence position where an arrhythmia list is to be displayed on the arrhythmia trend graph screen (steps 502 and 50).
3). When the arrhythmia occurrence position (occurrence time) is selected,
The control unit 36 calculates the time of the selected arrhythmia occurrence position, controls the arrhythmia list creation unit 33, and displays the display unit 37.
To display an arrhythmia list at the position (step 504).

Next, the arrhythmia selection unit 34 causes the display unit 3
7. From among the list of arrhythmias that have occurred at the position displayed in FIG. 7, the item of the arrhythmia whose electrocardiogram waveform is to be used for display is selected (step 505). When the arrhythmia item is selected, the control unit 36 reads the selected arrhythmia, the occurrence time of the arrhythmia, and the electrocardiogram data in the time immediately before and after the arrhythmia from the arrhythmia occurrence status storage unit 22 and converts the data into electrocardiogram waveform display data. Then, an electrocardiogram waveform is displayed on the display unit 37 (step 506).

Further, regarding the displayed electrocardiogram waveform,
If detailed information is necessary, a predetermined command is input to the biological information search unit 35, and other necessary biological phenomenon waveform information such as an electrocardiogram, blood pressure, From the biological information recording device, and display it on the display unit 37 on the same time axis (steps 508 and 50).
9).

Thereafter, when searching for further detailed information on the occurrence of other arrhythmias, the process returns to step 504 to display an arrhythmia list (step 510). When searching for an arrhythmia occurrence location at another time, the process returns to step 501 to display an arrhythmia trend graph (step 507).

Although the present invention has been described with reference to the preferred embodiments, the present invention is not necessarily limited to the above embodiments. For example, in the present embodiment, an arrhythmia trend graph and an arrhythmia list are created as arrhythmia display means. However, the present invention is not necessarily limited to these means, and a display form of displaying an arrhythmia occurrence status on a time axis, and a predetermined form. A display format in which a list of types of arrhythmias occurring at the time is displayed can be adopted.

[0043]

As described above, the biological information recording apparatus according to the present invention searches for an electrocardiogram based on the occurrence status of an arrhythmia. This has the effect that the arrhythmia of interest can be searched efficiently and in a short period of time without visually observing everything.

Further, according to the present invention, arrhythmia information is obtained from the patient monitoring device and stored separately for each type of arrhythmia. Therefore, it is easy to search for arrhythmia by type. As a result, the occurrence status of arrhythmia can be displayed in a list along the time axis for each arrhythmia name, and it is possible to confirm at a glance the change in the patient's condition, the state of the seizure, and the medicinal effect. Having.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a biological information recording device according to one embodiment of the present invention.

FIG. 2 is a diagram showing a structure of a data sequence transmitted from a patient monitoring device.

FIG. 3 is a diagram showing a file configuration of an arrhythmia information code stored in an arrhythmia occurrence status storage unit of the embodiment.

FIG. 4 is a diagram illustrating a file configuration of electrocardiogram data stored in an arrhythmia occurrence status storage unit according to the present embodiment.

FIG. 5 is a flowchart illustrating the operation of the present embodiment.

FIG. 6 is a diagram showing a display example of an arrhythmia trend graph.

FIG. 7 is a diagram showing a display example of an arrhythmia list.

[Explanation of symbols]

 10, 100 Biological information recording device 20 Recording unit 21 Arrhythmia analysis information input unit 22 Arrhythmia occurrence status storage unit 30 Arrhythmia search processing unit 31 Arrhythmia trend graph creation unit 32 Position selection unit 33 Arrhythmia list creation unit 34 Arrhythmia selection unit 35 Ecological information search Unit 36 control unit 37 display unit 40 network line 50 patient monitoring device 60 arrhythmia trend graph 70 arrhythmia list

Claims (4)

(57) [Claims] 1. A data sequence including a digital value indicating an electrocardiogram waveform divided at predetermined time intervals and an arrhythmia information code for identifying the presence / absence and type of an arrhythmia related to the electrocardiogram waveform is input, and the arrhythmia information code is input to the arrhythmia information code. Recording means for storing the data sequence corresponding to each type of arrhythmia; reading out the data sequence stored in the recording means; searching for information on occurrence of arrhythmia for each type of arrhythmia; and displaying arrhythmia search processing means. with the door, the arrhythmic retrieval processing means detects the occurrence of arrhythmia based on the arrhythmia information code
Arrhythmia occurrence status display means for displaying and displaying an electrocardiogram waveform based on a digital value indicating the electrocardiogram waveform
ECG display means for generating and displaying
A biological information recording device to be used as a sign. 2. The recording means inputs the data sequence and shows the electrocardiogram waveform.
Arrhythmia divided into digital value and arrhythmia information code
Analysis information input means, and a digital value representing the electrocardiogram waveform,
And the arrhythmia information code is irregularly stored.
An arrhythmia occurrence status storage device that classifies and stores each type of pulse
The biological information according to claim 1, further comprising a step.
Information recording device. 3. A first arrhythmia table in which the arrhythmia occurrence status display means displays an arrhythmia occurrence status on a time axis.
Indicating means and a list of types of arrhythmias occurring at a predetermined time.
2. An arrhythmia display means according to claim 1.
The biological information recording device according to 1. 4. The arrhythmia display means according to claim 1, wherein
Trend of occurrence along the time axis for each type of arrhythmia
4. The display according to claim 3, wherein the display is performed in a graph format.
Biological information recording device.