JP4174889B2 - Patient monitoring device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a patient monitoring apparatus that measures or monitors biological information such as blood pressure, an electrocardiogram, and a heart rate.
[0002]
[Prior art]
In order to measure or monitor a patient's biological information, various patient monitoring devices such as a sphygmomanometer and an electrocardiographic induction device have been proposed. These patient monitoring devices incorporate a microcomputer equipped with a CPU in order to give many functions to one device, or to perform more accurate measurement and monitoring, and control the display by the microcomputer. In general, control of measurement conditions and the like are performed. The CPU executes a program stored in advance in a storage device such as a ROM, thereby controlling the display and measurement conditions.
[0003]
In this way, in the patient monitoring apparatus of the type in which the CPU monitors the patient by executing the program stored in advance, in order to make the patient monitoring apparatus more responsive to the demands of the consumer, the previously stored program is updated. In some cases, the program may be stored in a rewritable storage device such as a flash memory so that the program can be rewritten into an improved program. When rewriting a program stored in the rewritable storage device, a program rewriting device (such as a personal computer) that stores the improved program and can transmit the improved program is provided. The program was changed by connecting to the patient monitoring device.
[0004]
[Problems to be solved by the invention]
However, if you want to change the program for multiple patient monitoring devices, if there is only one program rewriting device, it takes time to change, and if you want to change the program for all devices in a short time Therefore, it is necessary to prepare a large number of the above-described program rewriting devices. Furthermore, since it is normal not to have the above-mentioned program rewriting device at a site where a patient monitoring device such as a hospital is used, even with the same type of patient monitoring device, the version of the program is different and the same specification is used. In some cases, unification was not possible.
[0005]
The present invention has been made in the background as described above, and an object of the present invention is to provide a patient monitoring apparatus that can rewrite a program stored in advance without using a dedicated rewriting apparatus. There is.
[0006]
[Means for Solving the Problems]
To achieve this object, the gist of the present invention includes a rewritable first storage device in which a patient monitoring program is stored in advance, and a CPU that executes the patient monitoring program stored in the first storage device. An input port to which external data is input, and a rewriting means for rewriting the patient monitoring program stored in the first storage device based on a signal input through the input port, according to a command from the CPU A patient monitoring apparatus of a type that monitors a patient based on the second, storing an output port for outputting data to an external device and a transmission program for transmitting a program stored in the first storage device In accordance with a storage device and a transmission program stored in the second storage device, the patient stored in the first storage device through the output port And transmission means for transmitting the monitoring program is to include.
[0007]
【The invention's effect】
If it does in this way, the output port of one patient monitoring apparatus and the input port of the other patient monitoring apparatus comprised similarly will be connected, and according to the transmission program memorize | stored in the said 2nd memory | storage device by the transmission means The patient monitoring program stored in the first storage device can be transmitted to the other patient monitoring device through the output port. The other patient monitoring device can rewrite the patient monitoring program stored in the first storage device on the basis of the signal input through the input port by the rewriting means, and therefore uses a dedicated rewriting device. The patient monitoring program stored in advance can be rewritten.
[0008]
Other aspects of the invention
Here, preferably, the transmission means is executed by a CPU that executes the patient monitoring program. In this way, there is an advantage that it is not necessary to provide a separate CPU for executing the transmission program.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram for explaining an example of the configuration of a patient monitoring apparatus 10 to which the present invention is applied. Two patient monitoring apparatuses 10 a and 10 b are connected by a cable 12. In the present embodiment, the patient monitoring device 10a is the transmission side, and the patient monitoring device 10b is the reception side.
[0010]
In FIG. 1, a patient monitoring device 10a, 10b (hereinafter referred to as a patient monitoring device 10 unless otherwise specified) is a biological signal detector 14 that is attached to a patient and detects a patient's biological signal, and the biological signal detector. 14, an electronic control device 16 that determines biological information based on the biological signal supplied from the biological signal detector 14, a display 18 that displays the biological information, and an external device (in the case of the patient monitoring device 10a). It includes an input / output port 20 for outputting data to the patient monitoring apparatus 10b) and inputting data from the outside.
[0011]
The biological signal detector 14 includes, for example, a cuff that is wound around the upper arm portion of a living body and detects a pressure vibration wave generated from the brachial artery, and is attached to the epidermis of the peripheral portion of the living body and receives a volume pulse wave of a capillary vessel. A pulse oximeter photoelectric pulse wave detection probe for detection, an electrocardiographic induction device for detecting an electrocardiographic induction wave indicating an action potential of the myocardium through a plurality of electrodes attached to a predetermined part of a living body, and the like are used.
[0012]
The electronic control unit 16 includes a CPU 22, a PROM 24, a RAM 26, and a ROM 28. The CPU 22 controls the biological signal detector 14 according to a patient monitoring program stored in the PROM 24 in advance, and the storage function of the RAM 26. The biological information is determined based on the biological signal supplied from the biological signal detector 14 while using the information, and the determined biological information is displayed on the display 18. Therefore, in this embodiment, the PROM 24 functions as the first storage device. The biological information determined based on the biological signal includes, for example, a blood pressure value determined based on a pressure vibration wave generated from the brachial artery, an oxygen saturation determined based on a volume pulse wave, and an electrocardiographic induction wave. There is an electrocardiogram determined based on this, a pulse wave propagation velocity information determined based on a time difference from a predetermined part of the electrocardiogram-induced waveform to a predetermined part of the volume pulse wave of the peripheral blood vessel.
[0013]
The PROM 24 is configured to be rewritable. For example, a flash EEPROM or the like is used. The ROM 28 functions as a second storage device in the present embodiment, and is a transmission program programmed to transmit the patient monitoring program and other devices (patient monitoring device 10a in the case of the patient monitoring device 10b). A reception program for receiving the patient monitoring program from the user and rewriting the patient monitoring program stored in the PROM 24 is stored. The CPU 16 outputs the patient monitoring program stored in the PROM 24 according to the transmission program stored in the ROM 28.
[0014]
The patient monitoring program output from the electronic control device 16 is output to the patient monitoring device 10b via the input / output port 20a and the cable 12 connected to the input / output port 20a. In the patient monitoring apparatus 10b, the patient monitoring program stored in the PROM 24b is rewritten based on the signal input from the input / output port 20b.
[0015]
The start / stop switch 30 alternately switches start / stop of the patient monitoring device 10 every time the switch 30 is pressed. On the operation panel 32, a button for instructing the patient monitoring device 10 to start / stop the patient monitoring operation, the content displayed on the display 18, the switching of the display content, and the connection with other patient monitoring devices. A selection button for selecting a program COPY mode for performing transmission / reception of the patient monitoring program is provided.
[0016]
FIG. 2 is a functional block diagram for explaining a main part of the patient monitoring program transmission and rewriting function of the electronic control device 16 in the patient monitoring device 10.
[0017]
The display screen switching means 40 should also be referred to as a copy mode selection means. When a display screen switching signal, that is, a copy mode selection signal is input, the display content of the display 18 is changed from the normal patient monitoring screen to the patient. In order to select transmission and reception of the monitoring program, the screen is switched to a screen displaying a menu such as transmission / reception of the program. For example, when the start / stop switch 30 is pressed and the patient monitoring apparatus 10 is activated while a preset button on the display panel 32 is pressed, the display screen switching signal is output. ing.
[0018]
The transmission means 42 is executed when several selection menus of the copy mode are displayed on the display unit 18 by the display screen switching means 40, and program transmission is selected from them. The transmission means 42 is stored in the transmission program stored in the ROM 28. Accordingly, the patient monitoring program stored in the PROM 24 is output from the input / output port 20.
[0019]
The rewriting means 44 is executed when several selection menus of the copy mode are displayed on the display 18 by the display screen switching means 40 and program reception is selected from them, and is executed from the ultraviolet irradiation device (not shown) of the PROM 24. A new patient monitoring program is written in the PROM 24 based on the erasure means 46 for erasing the patient monitoring program stored in the PROM 24 by irradiating ultraviolet rays onto a predetermined part and the signal input through the input / output port 20. Writing means 48.
[0020]
FIG. 3 and FIG. 4 are flowcharts for explaining the main parts of the reception and transmission functions of the patient monitoring program executed in accordance with the transmission program and the reception program stored in the ROM 28 in the electronic control device 16 of the patient monitoring apparatus 10. FIG. 3 is a reception routine executed when receiving the patient monitoring program, and FIG. 4 is a transmission routine executed when transmitting the patient monitoring program.
[0021]
The reception routine of FIG. 3 is executed when the copy mode is selected and program reception is selected from the display screen of the display 18. In FIG. 3, first, in step SA1 (hereinafter, step is omitted), an identification signal for identifying that it is connected to the patient monitoring apparatus 10a on the program transmission side, that is, a transmission request signal is transmitted. In subsequent SA2, it is determined whether or not a transmission start signal from the patient monitoring apparatus 10a has been received. If this determination is negative, SA1 and subsequent steps are repeated.
[0022]
However, if the determination of SA2 is affirmed, the connection between the transmission side and the reception side is normally performed, and a new patient monitoring program is transmitted from the patient monitoring device 10a on the transmission side. In SA3 corresponding to the subsequent erasing means 46b, the patient monitoring program stored in the PROM 24b is erased by irradiating the PROM 24b with ultraviolet rays for a predetermined time from an unillustrated ultraviolet irradiation device.
[0023]
Subsequently, SA4 to SA5 corresponding to the writing means 48b are executed. In SA4, new patient monitoring programs input from the transmission-side patient monitoring device 10a through the input / output port 20b are sequentially written in the PROM 24b. In SA5, it is determined whether an end signal has been received. While this determination is denied, SA4 and subsequent steps are executed to write the patient monitoring program, and when an end signal is received, the determination of SA5 is affirmed and this routine is terminated.
[0024]
The transmission routine of FIG. 4 is executed when the copy mode is selected and program transmission is selected from the display screen of the display 18a. In FIG. 4, first, in SB1, it is determined whether or not the connection is established. That is, it is determined whether or not a transmission request signal is received from the receiving patient monitoring apparatus 10b.
[0025]
While the determination of SB1 is denied, SB1 is repeatedly executed. When the determination is affirmative, a transmission start signal is transmitted in subsequent SB2. Thereby, it is determined that the connection is normal also in the patient monitoring apparatus 10b on the receiving side. In the subsequent SB3, it is determined whether or not a predetermined time has elapsed since the transmission start signal was transmitted in the SB2. This predetermined time is set in advance as a time sufficient to erase the patient monitoring program stored in the PROM 24 after receiving the transmission start signal in the receiving patient monitoring apparatus 10b.
[0026]
Subsequently, SB4 to SB6 corresponding to the transmission means 42a are executed. That is, in SB4, the patient monitoring programs stored in the PROM 24a are sequentially transmitted, and in subsequent SB5, it is determined whether or not all the patient monitoring programs have been transmitted. While the determination of SB5 is denied, transmission of the patient monitoring program is continued by repeating SB4 and subsequent steps.
[0027]
However, if the determination in SB5 is affirmed, in the following SB6, an end signal for informing the receiving side patient monitoring apparatus 10b of the end of program transmission is transmitted, and this routine is ended.
[0028]
As described above, according to the present embodiment, the cable 12 connects the input / output port 20a of the transmitting-side patient monitoring apparatus 10a and the input / output port 20b of the receiving-side patient monitoring apparatus 10b that are configured in the same manner. The transmitting means 42a can transmit the patient monitoring program stored in the PROM 24a to the receiving patient monitoring apparatus 10b through the input / output port 20a according to the transmission program stored in the ROM 28a. The patient monitoring device 10b on the receiving side can rewrite the patient monitoring program stored in the PROM 24b based on the signal input through the input port 20b by the rewriting means 44b, so that a dedicated rewriting device is used. The patient monitoring program stored in advance can be rewritten.
[0029]
Therefore, in a conventional patient monitoring device that requires a dedicated rewriting device such as a personal computer, when rewriting a program of a plurality of, for example, eight patient monitoring devices, the rewriting work of the patient monitoring program by the dedicated rewriting device is performed 8 In the patient monitoring apparatus 10 configured as in this embodiment, the patient monitoring apparatus 10 in which the rewriting of the patient monitoring program has been completed is used, and the patient of the patient monitoring apparatus 10 that has not been rewritten. Since the patient monitoring program can be rewritten, the time required to rewrite the programs of all the patient monitoring devices 10 can be shortened. In addition, since the patient monitoring program can be rewritten without a dedicated rewriting device, the program can be easily rewritten at the site where the patient monitoring device 10 is used, and the specifications of the patient monitoring devices 10 can be unified. It becomes easy.
[0030]
Further, according to the present embodiment, since the transmission means 42 is executed by the CPU 22 that executes the patient monitoring program, there is an advantage that it is not necessary to separately provide a CPU for executing the transmission program.
[0031]
As mentioned above, although one Example of this invention was described in detail based on drawing, this invention is applied also in another aspect.
[0032]
For example, in the above-described embodiment, the patient monitoring program is stored in the PROM 24, but other rewritable storage devices such as a silicon disk and a hard disk may be used instead of the PROM 24.
[0033]
In the above-described embodiment, the transmission program and the reception program are stored in a storage device different from the PROM 24 in which the patient monitoring program is stored, that is, the ROM 28. However, the transmission program and the reception program may also be stored in the PROM 24. . In this case, the erasing means 46 erases only the patient monitoring program portion of the stored contents of the PROM 24.
[0034]
In the above embodiment, the input / output port 20a of the patient monitoring apparatus 10a on the transmission side and the input / output port 20b of the patient monitoring apparatus 10b on the reception side are connected by the cable 12. A device may be connected. Further, the input port and the output port may be configured separately.
[0035]
The present invention can be modified in various other ways without departing from the spirit of the present invention.
[Brief description of the drawings]
FIG. 1 is a block diagram for explaining an example of the configuration of a patient monitoring apparatus according to an embodiment of the present invention, showing a state in which two patient monitoring apparatuses are connected by a cable.
2 is a functional block diagram illustrating a main part of a patient monitoring program transmission and rewriting function of the electronic control device in the embodiment of FIG. 1; FIG.
3 is a flowchart for explaining a main part of the control operation of the electronic control unit in the embodiment of FIG. 1, and is a diagram for explaining a reception routine executed when a patient monitoring program is received. FIG.
4 is a flowchart for explaining a main part of the control operation of the electronic control unit in the embodiment of FIG. 1, and is a diagram for explaining a transmission routine executed when a patient monitoring program is transmitted. FIG.
[Explanation of symbols]
10: Patient monitoring device 20: Input / output port 22: CPU
24: PROM (first storage device)
28: ROM (second storage device)
42: Transmitting means 44: Rewriting means

Claims (1)

A rewritable first storage device in which a patient monitoring program is stored in advance, a CPU for executing the patient monitoring program stored in the first storage device, an input port for inputting data from the outside, and the input port Rewriting means for rewriting a patient monitoring program stored in the first storage device based on a signal input through the patient monitoring device, and monitoring a patient based on a command from the CPU,
An output port for outputting data to an external device;
A second storage device storing a transmission program for transmitting the program stored in the first storage device;
A patient monitoring apparatus comprising: a transmission means for transmitting a patient monitoring program stored in the first storage device through the output port according to a transmission program stored in the second storage device.

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