JP2007218613A - Time setting device of biological information monitor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a time setting device of biological information monitor capable of easily setting time. <P>SOLUTION: The present time is acquired from an external in-hospital network by an RTC 11d via a network connector 26, connectors 25c and 18c, and an Ethernet R controller 19, and is managed by a CPU 11, operation is received, the managed present time is converted into infrared light via an infrared LED 15, a transistor 15b, and an infrared filter 15a, and light is projected towards a bedside monitor. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a biological information monitor time setting device for setting the time of a biological information monitor.

  Conventionally, there is a hospital network system in which a bedside monitor for measuring biological information such as a patient's body temperature, pulse, blood pressure and the like and a central monitor for receiving and managing the biological information transmitted from the bedside monitor are mixed. Are known.

  FIG. 20 is a diagram showing a configuration of a conventional hospital network system.

  The in-hospital network system shown in FIG. 20 includes a central monitor 101 serving as a base station, another central monitor 102, and bedside monitors 103, 104, and 105 for measuring patient biological information. These central monitors 101 and 102 and bedside monitors 103, 104 and 105 are connected via a network 100. Here, the central monitor 101 serving as a base station manages the time of the entire system, and the other central monitors 102 and bedside monitors 103, 104, and 105 receive time information from the central monitor 101 and have their own clocks. It is designed to match. Even if an attempt is made to change the time on the bedside monitor in the system, the time is forcibly returned to the time of the central monitor 101. Otherwise, there is a risk that information that is processed in time series such as trend information may not be consistent.

  As such an in-hospital network system, for example, a communication device that transmits / receives information to / from an external device via a wireless communication network, and a biometric device that is configured to be detachable from the communication device and measures biological information in a detached state An in-hospital network system has been proposed (see Patent Document 1).

Further, an in-hospital comprising a plurality of sensors for measuring biological information, and a data management device connected to the plurality of sensors via a network and correcting characteristics due to individual differences of each of the plurality of sensors and a time difference of an internal clock. A network system has been proposed (see Patent Document 2).
JP 2002-330930 A JP 2005-7154 A

  However, in-hospital network systems include not only devices connected by wire and capable of two-way communication, but also bedside monitors that only allow one-way communication with a central monitor, for example. Many patients send their patient's biological information to the central monitor. In this case, since there is no means for sending time information from the central monitor to the bedside monitor, it is not possible to set each other's time. The bedside monitor transmits trend information such as non-invasive blood pressure by a non-invasive blood pressure measurement method that indirectly measures the patient's blood pressure value from the outside of the body based on its own internal clock, If the time information of the central monitor is greatly different, if the time of the bedside monitor is adopted, there is a possibility that consistency with other devices cannot be obtained and the patient's condition cannot be accurately grasped.

  On the other hand, if the time of the central monitor is adopted, there is no worry about it, but the time of the bedside monitor remains different. Even if the same trend information is printed out on the central monitor and the bedside monitor, it is the same. It is not easy to determine whether it is data.

  In general, the accuracy of the built-in clock of the equipment in the hospital network system is not so good, and it is not uncommon for the time information to differ from monitor to monitor over the course of several months. There is a problem that medical staffs have little knowledge about devices, and models that have a clock setting menu in a deep hierarchy leave the clock without being set, and the above-described problems can occur frequently.

  In view of the above circumstances, an object of the present invention is to provide a biological information monitor time setting device that can easily adjust the time.

The biological information monitor time setting device of the present invention that achieves the above-described object,
A time acquisition unit for acquiring the current time from the outside;
In response to the setting of the current time acquired by the time acquisition unit, following the setting, a time management unit that autonomously manages the current time,
In response to the operation, the apparatus includes a time transmission unit that transmits the current time managed by the time management unit to a bedside monitor that detects biological information of the patient.

  The biological information monitor time setting device of the present invention acquires the current time from the outside and manages it autonomously, and directs the current time managed in response to the operation to the bedside monitor that detects the biological information of the patient. To be sent. Therefore, for example, by obtaining the current time from an external network and transmitting it to the bedside monitor with the biological information monitor time setting device of the present invention, the central monitor connected to the network and the bedside monitor You can easily set the time between. Therefore, the time information between the central monitor and the bedside monitor is prevented from greatly differing, and compared with the case where the time of only one bedside monitor is adopted, the patient's condition can be changed without being compatible with other devices. It is possible to solve the problem of being unable to grasp accurately. In addition, it is possible to solve the problem that it is difficult to determine whether or not the data at a certain time is the same between the central monitor and the bedside monitor as compared with the case where the time of only the central monitor is adopted. it can.

  Here, the time acquisition unit acquires the current time from the in-hospital system including the bedside monitor and a central monitor that receives the patient's biological information from the bedside monitor and manages the patient's biological information. It is preferable that

  As described above, when the current time is acquired from the hospital system including the bedside monitor and the central monitor, the time can be easily and accurately adjusted between the central monitor and the bedside monitor constituting the hospital system. .

  It is also a preferred aspect that the time acquisition unit acquires the current time from a standard time station.

  In this way, the current time can be set to Japan standard time.

  Further, the time transmission unit receives an operation for instructing the biological information monitor time setting device to perform a predetermined process other than the current time transmission, and executes the other predetermined process. It is also preferable that the current time is transmitted toward the.

  As described above, when the current time is transmitted together with other predetermined processes, it is possible to reduce the labor of the operator as compared with a case where only the current time is transmitted separately.

  Moreover, the said time transmission part may transmit present time toward the said bedside monitor by infrared communication.

  Further, the time transmitting unit may transmit the current time to the bedside monitor by ultrasonic communication.

  According to the biological information monitor time setting device of the present invention, the time can be easily adjusted.

  Embodiments of the present invention will be described below.

  FIG. 1 is a circuit block diagram of a biological information monitor time setting device and a charger according to a first embodiment of the present invention.

  FIG. 1 shows a biological information monitor time setting device 10 according to a first embodiment of the present invention and a charger 20 connected to the biological information monitor time setting device 10.

  The biological information monitor time setting device 10 includes a CPU 11. The CPU 11 supervises the operation of the biological information monitor time setting device 10. The CPU 11 includes a read only memory (hereinafter abbreviated as ROM) 11a, a random access memory (hereinafter abbreviated as RAM) 11b, a liquid crystal driver (LCDr) 11c, and a real-time clock (hereinafter abbreviated as RTC). 11d and a timer (TIMER) 11f. The biological information monitor time setting device 10 includes a backup battery 11e and a liquid crystal panel (LCD) 12.

  The ROM 11a has programs and data to be described later.

  The RAM 11b is used for primary storage of calculations and variables.

  The liquid crystal driver 11c drives the liquid crystal panel 12.

  The RTC 11d holds readable / writable time information, and this time information is backed up by the backup battery 11e. The RTC 11d corresponds to an example of a time acquisition unit according to the present invention, and acquires the current time from the outside as described later. Further, the CPU 11 is responsible for the time management unit referred to in the present invention, receives the setting of the current time acquired by the RTC 11d, and autonomously manages the current time following the setting.

  The timer 11f is used for time measurement.

  The liquid crystal panel 12 displays time information to be described later.

  The biological information monitoring time setting device 10 also has an oscillator 11g for supplying a system clock having a frequency of 3.57 MHz to the CPU 11 and a user's finger for setting clock functions such as tense and alarm settings described later. Switches 13a, 13b, and 13c to be operated are provided. The switch 13a is also used to generate a trigger signal for projecting the infrared LED 15 when the biological information monitoring time setting device 10 is used as a remote controller to be described later.

  Furthermore, the biological information monitoring time setting device 10 is also provided with a switch 13d used as a manual reset switch for the user to reset when the CPU 11 runs out of control.

  Also, the biological information monitor time setting device 10 has a buzzer 14 for notifying the alarm of a preset clock by voice, and converting pre-encoded commands and data into infrared light through an infrared filter 15a. An infrared LED 15 that projects light, a transistor 15b that drives the infrared LED 15 with an appropriate current, and a dip switch 16 that is a quadruple switch for setting an initial value are provided. The infrared LED 15, the infrared filter 15a, and the transistor 15b correspond to an example of a time transmission unit according to the present invention.

  Furthermore, the biological information monitor time setting device 10 is provided with a rechargeable battery 17 that is a nickel hydride battery of three cells. The rechargeable battery 17 is charged from a later-described charger 20 via external power input terminals 18a and 18b, and when the biological information monitor time setting device 10 is removed from the charger 20, A power supply of about 3.6 V is supplied to the liquid crystal panel 12, the infrared LED 15, and the like.

  The biological information monitoring time setting device 10 also includes a connector 18c that detects whether or not a charger 20 described later is connected, and transmits a signal from a hospital network (Ethernet: registered trademark), and the connector 18c. An Ethernet (registered trademark) controller 19 is provided for communicating with the hospital network via the network.

  Next, the configuration of the charger 20 will be described. The charger 20 is supplied with AC power from an external power source via a power cable 21. In this charger 20, this AC power supply is rectified by the bridge IC 22, then stepped down by the transformer 23, and a DC voltage of about 4 V is output by the regulator 24 through a smoothing circuit (not shown).

  The connectors 25a and 25b constituting the charger 20 are in contact with the external power input terminals 18a and 18b of the biological information monitor time setting device 10 described above, and supply the DC voltage to the biological information monitor time setting device 10; The connector 25 c is for exchanging network information between the external hospital network and the biological information monitor time setting device 10 together with the network connector 26.

  FIG. 2 is an external view of the biological information monitor time setting device shown in FIG.

  2A, 2B, 2C, and 2D are a front view, a top view, a rear view, and a bottom view of the biological information monitor time setting device 10, respectively. .

  As shown in FIG. 2A, the biological information monitor time setting device 10 has a liquid crystal panel 12 fitted in an outer casing. The liquid crystal panel 12 has symbols 12a to 12m. Specifically, the network symbol 12a, the light projection symbol 12b, the alarm 1 symbol 12c, the alarm 2 symbol 12d, the AM symbol 12e, the PM symbol 12f, the year symbol 12g, the month symbol 12h, the day symbol 12i, the day symbol 12j, and the hour symbol 12k , Minute symbol 12l, and second symbol 12m. One symbol is composed of one or more segments, and a target display is realized by combining the segments.

  The network symbol 12a displays a connection state with a network in a hospital, and is lit when normally communicating, and blinks when communication is not established.

  The light projection symbol 12b lights up when the infrared LED 15 emits light.

  The alarm 1 symbol 12c and the alarm 2 symbol 12d are lit when the alarm as a normal clock is set, and the AM symbol 12e and the PM symbol 12f are when the time is set to 12-hour system. Either lights up.

  The year symbol 12g to the second symbol 12m display the current date and time and the day of the week.

  Further, as shown in FIG. 2 (b), switches 13a, 13b, 13c and a buzzer ring hole 14a for informing a clock alarm are provided side by side on the upper surface of the biological information monitor time setting device 10. Yes.

  Further, as shown in FIG. 2 (c), a screwed dip switch lid 16a and a battery lid 17a are provided on the back of the biological information monitor time setting device 10. Further, as shown in FIG. 2 (d), external power input terminals 18 a and 18 b and the biological information monitor time setting device 10 are connected to the charger 20 on the lower surface of the biological information monitor time setting device 10. And a connector 18c for detecting a signal and transmitting a signal from a hospital network.

  FIG. 3 is a diagram illustrating an appearance of the charger illustrated in FIG. 1.

  The charger 20 shown in FIG. 3 receives power from the outside via the power cable 21 and outputs a DC voltage of about 4 V by the internal circuit composed of the bridge IC 22, the transformer 23 and the regulator 24 described above to monitor the biological information. Connectors 25a and 25b for supplying to the external power input terminals 18a and 18b of the time setting device 10 and a connector 25c connected to the connector 18c described above are provided side by side. The connector 25c is provided with seven pins side by side, the center pin detects the connection between the biological information monitoring time setting device 10 and the charger 20, and the other six pins are located in the hospital. It communicates with the base station via the network and acquires the time.

  FIG. 4 is a diagram illustrating a state in which the biological information monitor time setting device illustrated in FIG. 2 is set in the charger.

  The charger 20 is connected to an AC power supply via a power cable 21, supplies power to the biological information monitor time setting device 10, and operates an internal circuit including the CPU 11 constituting the biological information monitor time setting device 10. The rechargeable battery 17 is charged. A reset switch 13d (see FIG. 2) is visible on the bottom surface of the biological information monitor time setting device 10. When the CPU 11 runs away, it can be reset by pressing it with the tip of a ballpoint pen.

  FIG. 5 is a diagram showing a state in which time information is projected by infrared rays onto two bedside monitors having an infrared light receiving unit using the biological information monitor time setting device shown in FIG.

  FIG. 5 shows the biological information monitor time setting device 10 and the two bedside monitors 30 and 49. When the switch 13a of the biological information monitor time setting device 10 is pressed, the infrared LED 15 (see FIG. 1) emits light. At this time, the light projection symbol 12b is turned on to notify the light projection. Here, the two bedside monitors 30 and 49 receive the signals regardless of the mutual state, and correct the time. Here, the configuration of the bedside monitor 30 will be described with reference to FIGS. 5 and 6.

  FIG. 6 is a block diagram of the bedside monitor 30.

  The CPU 31 constituting the bedside monitor 30 shown in FIG. 6 supervises the operation of the bedside monitor 30. The digital board 30a is equipped with a later-described functional block including the CPU 31. The CPU 31 includes a ROM 31a, a RAM 31b, and an RTC 31c. The ROM 31a holds programs and data described later, and the RAM 31b is used for primary storage of calculations and variables. The RTC 31c holds readable / writable time information.

  Further, the oscillator 31d mounted on the digital board 30a supplies the CPU 31 with a system clock having a frequency of 6 MHz. The dip switch 31e is a switch for changing the initial setting of the bedside monitor 30, and the state is read only once at the time of activation.

  A liquid crystal driver (LCDr) 32 constituting the bedside monitor 30 drives a liquid crystal panel (LCD) 32a also shown in FIG. Further, the membrane switch 33 is a switch that is arranged on the front surface of the housing as shown in FIG. The buzzer 34 is for notifying operation errors and internal errors. Furthermore, the alarm lamp driver 35 lights the alarm lamp 35a when the patient parameter deviates from a predetermined value or when an alarm condition such as disconnection of a cable, a connector, or the like is satisfied.

  The telemeter transmission unit 36 transmits patient information to a central monitor (not shown) through digital communication via the antenna 36a. Furthermore, the external input / output driver 37 is operated by a power source insulated on the digital board 30a, and enables communication with an external device via the connection terminal 37a while performing level conversion.

  Further, the remote control receiving unit 38 has a built-in bandpass filter of about 38 kHz, and reacts only to pulsed light that can pass through this filter and passes the output to the CPU 31. Further, the IC card driver 39 reads / writes data from / to the IC card inserted into the IC card slot 39a, and upgrades the program or writes the waveform, patient information, and device information.

  Further, an oxygen saturation (SpO2) processing circuit 41, an electrocardiogram (ECG) processing circuit 42, and an impedance respiration (Resp) processing circuit 43 having connection terminals 41a and 42a also shown in FIG. It is formed on an analog substrate 40 that is strongly insulated from other parts of the device so that it can withstand high voltage pulses. Further, the non-invasive blood pressure (NIBP) unit 44 includes a pump, a pressure censor (not shown), and a processing circuit thereof, and transmits a non-invasive blood pressure output obtained from a cuff (not shown) connected to the joint 44a to the CPU 31. .

  The power supply circuit 45 is a multi-output power supply for supplying power input via the power cable 46 to an internal circuit, and further charges the battery 48 via the charging circuit 47.

  When an external power source is not connected to the bedside monitor 30, the bedside monitor 30 operates with the power of the battery 48. When the external power source is connected, the bedside monitor 30 operates with the output of the power circuit 45 and simultaneously charges the battery 48.

  Note that the bedside monitor 49 shown in FIG. 5 has a patient connection part on the side and the other structure and operation are almost the same as those of the bedside monitor 30, and thus the description thereof is omitted.

  FIG. 7 is a diagram showing a light projection waveform and a light reception waveform in the biological information monitor time setting device of the first embodiment, and FIG. 8 is a diagram showing an output format of time information in the biological information monitor time setting device of the first embodiment. It is.

  The output format of the time information in the biological information monitor time setting device 10 of the first embodiment is a so-called home appliance association format. As shown in FIG. 8, the Home Appliance Association format is a format consisting of six parts: reader, custom code (fixed pulse train including company information, etc.), parity, data code, data, and trailer. Although it is a stage, it is actually a continuous pulse train. Here, the reader exists to distinguish between a steady infrared source such as sunlight and the remote control output, and the “H” level is fixed at 940 milliseconds and the “L” level is 470 milliseconds, which is fixed to 1410 milliseconds. The custom code is a fixed pulse train including company information and the like, and the trailer functions to convey the end of transmission to the receiving side by continuing the “L” level for 8460 milliseconds. Parity and data code are 4-bit information that changes from time to time. The data is composed of six parts including time information. “Year” is 6 bits long and is a number obtained by subtracting 2000 from the year number, that is, 00 to 63, “Month” is 4 bits long and 1 to 12, and “Day” is 5 Bit length is 1-31, “hour” is 5 bit length 0-23, “minute” is 6 bit length 0-59, “second” is 6 bit length 0-59, The total is 32 bits.

  As shown in FIG. 8, in the home appliance association format, a digital value is transmitted by pulse position modulation (hereinafter abbreviated as PPM). The logic is positive logic, each time information is transmitted in order from the MSB, the carrier frequency (burst frequency) is 37.9 kHz, and the carrier duty is 50%. Here, the light projection waveform shown in FIG. 7 is a waveform actually emitted from the infrared LED 15 (see FIG. 1), and the CPU 11 drives the transistor 15b is a waveform obtained by inverting this. The received light waveform is a waveform for outputting to the CPU 31 a waveform received by a remote control receiving unit 38 built in the light receiving device, for example, the bedside monitor 30. The CPU 31 temporarily stores this waveform in a ring buffer secured on the RAM 31b, analyzes after completion of reception, calculates six data of year / month / day / hour / minute / second, and sets it in the RTC 31c.

  FIG. 9 is a diagram illustrating a flowchart of a main routine of the biological information monitoring time setting device according to the first embodiment.

  When the reset switch 13d is pressed while the biological information monitor time setting device 10 of the first embodiment is set in the charger 20, a hardware reset is performed and the main routine is started. First, various circuits and memory areas are initialized (step S101), and then time information is read from RTClld (step S102). Although the RTC 11d is backed up by a dedicated battery 11e, it is expected to be quite crazy when it is used for the first time because it remains in the factory-set state. Subsequently, the time read from the RTC 11d is displayed. The time is automatically updated by an interrupt process inside the CPU 11 that occurs every second (step S103).

  Next, it tries to receive time information from the base station through the network in the hospital (step S104). If the reception is not normally performed due to the disconnection of the network cable or the failure of the network in the hospital (step S105), the network symbol 12a blinks (step S106) and the next reception is scheduled. Wait until the time, here, the hour (00 minutes) (step S107), and return to step S104 again to attempt reception. If normal data is obtained as a result of receiving and decoding the data in step S105, the network (LAN) symbol 12a is turned on (step SI08), and the reception time is set in the RTCIld (step S105). S109), the received time is displayed (step S110).

  Next, it is confirmed whether alarm 1 is valid and the current time has passed the set time of alarm 1 (step S111). If not, alarm 2 is still valid and the current time is the set time of alarm 2. It is confirmed whether or not past (step S112). If the set time of either alarm 1 or alarm 2 has passed, the buzzer 14 is sounded with a continuous sound of “pip pip pip ...” (step S113). Furthermore, it waits until the next scheduled reception time (step S114), and returns to step S104 again to receive. If normal reception is possible in step S105, the RTC 11d has a slight error and may be received about once a day. Even if it cannot be received normally, the clock can be set manually as described later.

  FIG. 10 is a diagram showing a flowchart of an interrupt routine by the switch.

  When one of the switches 13a, 13b, 13c is pressed, or when the biological information monitoring time setting device 10 is removed from the charger 20 and the connector 18c and the connector 25c are released, a level change interrupt is generated and this interrupt routine is entered. .

  First, after performing a chattering process or the like from the switch, it is determined which switch has been pressed (step S201). If it is determined that the switch 13a has been pressed, the process proceeds to step S202, and then the mode setting subroutine is entered (step S203). The mode setting method will be described later. When the desired mode is set, this routine is exited. If it is determined in step S201 that the switch 13b is pressed, the process proceeds to step S204, where it is determined that the buzzer 14 is sounding continuously because the set time of alarm 1 or alarm 2 of the clock is reached. After stopping the buzzer 14 from ringing (step S205), the routine is exited.

  If it is determined in step S201 that the switch 13c has been pressed, the process proceeds to step S206, and the alarm 1 and alarm 2 set times of the clock are alternately displayed every 2 seconds while the switch 13c is being pressed ( Step S207) is continued until the switch 13c is released (step S208). When the switch 13c is released, the routine is exited.

  On the other hand, if it is determined in step S201 that the connector 18c is released from the connector 25c of the charger 20, the process proceeds to step S209, and the CPU 11 initializes the variable area necessary for the calculation and the timer 11f, and then the timer 11f. When the switch 13a is pressed (step S211), the current time is read from the RTClld (step S212), encoded to create transmission pulse data (step S213), and the light projection symbol 12b is turned on. The infrared LED 15 is driven to project light (step S214). The light projecting operation is repeated until the switch 13a is released (step S215). If the switch 13a is released in step S215 or if the switch 13a is not pressed in step S211, the process proceeds to step S216. In step S216, the state of the connector 18c is confirmed. Here, if it is in contact with the connector 25c of the charger 20, end processing such as stop of the timer 11f or release of the memory area is performed (step S220), and this routine is exited.

  On the other hand, if it is determined that the biological information monitor time setting device 10 is not set in the charger 20, the process proceeds to step S217. In step S217, the value of the timer 11f is checked to determine whether or not 30 minutes or more have elapsed from the release of the connector 18c. If so, the state of the switch 13b is checked (step S218), and the switch 13b If is not pressed, it is determined that the biological information monitor time setting device 10 is left unattended, and a beep is continued (step S219), and the process returns to step S218. On the other hand, if the switch 13b is pressed, the beep sound is stopped by executing an end process in step S220, and the routine is exited.

  FIG. 11 is a state transition diagram of mode setting.

  The description of the mode setting in step S203 shown in FIG. 10 is complicated in the flowchart, and is shown here in the form of a transition diagram.

  As shown in FIG. 11A, when the switch 13a is pressed from the normal mode, that is, the state in which the biological information monitor time setting device 10 is set in the charger 20 and displaying the clock, the time setting mode is entered and the year symbol is entered. 12g blinks with a period of 0.5 seconds. Further, every time the switch 13a is pressed, the mode changes to the alarm 1 setting mode, the alarm 2 setting mode, and the tense setting mode. When the switch 13a is pressed again, the time setting mode is restored and the above is repeated. However, the transition between the modes is effective only when only the switch 13a is kept pressed, and the mode is entered when the switch 13b or the switch 13c is pressed even once. Also, transition from each mode to another mode is not possible. To return from each mode to the normal mode, either press the switch 13a to confirm the correction and return, or cancel the correction without pressing anything for 10 seconds and return.

  When the time setting mode is entered, each time the switch 13b is pressed, the month symbol 12h, the day symbol 12i, the hour symbol 12k, and the minute symbol 12l flash at a cycle of 0.5 seconds, and the switch 13b is pressed again. The year symbol 12g flashes again. The value of the blinking symbol can be changed. When the switch 13c is pressed while any symbol is flashing, 1 is added to the value of that symbol. For example, when the year symbol 12g is 34, the value is 35, and when the year symbol is 63, the value is 00. Needless to say, the upper limit of the day changes depending on the value of the month, and the time of the day changes according to the tense. When the switch 13a is pressed after setting the desired year / month / day / hour by the switch 13b and the switch 13c, the second is set to the time of the year / month / day / hour / minute and the normal mode is restored.

  When the alarm 1 setting mode is entered, the alarm 1 symbol 12c and the hour symbol 12k flash first, the minute symbol 12l flashes at a cycle of 0.5 seconds each time the switch 13b is pressed, and the switch 13b is pressed again. The hour symbol 12k flashes again. When the switch 13c is pressed while any symbol is flashing, 1 is added to the value of that symbol. For example, when the minute symbol 121 is 34, the value is 35, and when the minute symbol is the upper limit 59, the value is 00. Needless to say, the upper limit of time changes depending on the tense. When the switch 13a is pressed after setting the desired time with the switch 13b and the switch 13c, the time is set in the alarm 1 storage area on the RAM 11b, the alarm 1 symbol 12c is lit and the normal mode is restored.

  Since the alarm 2 setting mode is the same as the alarm 1 setting mode except that the alarm 2 symbol 12d blinks instead of the alarm 1 symbol 12c, the description thereof is omitted. When the alarm 2 is set, the time is set in the alarm 2 storage area on the RAM 11b, the alarm 2 symbol 12d is lit and the normal mode is restored.

  In the tense setting mode, the 12-hour system and the 24-hour system are switched. When entering this mode, the hour symbol 12k, the minute symbol 12l, and the second symbol 12m are first blinked at a cycle of 0.5 seconds in the current tense. If the 12-hour clock is used, either the AM symbol 12e or the PM symbol 12f flashes in time with the current time. If the 24-hour clock is used, both the AM symbol 12e and the PM symbol 12f are turned off and the current time is set to the 24-hour clock. Display blinking. Each time the switch 13b is pressed, the time is switched to one of the tenses, and after setting the desired tense, when the switch 13a is pressed, the time is set in the tense storage area on the RAM 11b and the normal mode is restored.

  Note that, as shown in FIG. 11B, the buzzer 14 sounds with a continuous sound “pip beep…” at the time set in the alarm 1 or the alarm 2 in the normal mode, and the switch 13b is pressed to stop this. . Further, as shown in FIG. 11C, the set times of alarm 1 and alarm 2 are alternately displayed at a cycle of 2 seconds only while the switch 13c is being pressed in the normal mode. When the alarm is not set, the hour symbol 12k, the minute symbol 12l, and the second symbol 12m are all displayed as "-" so that it can be seen at a glance that no alarm is set.

  FIG. 12 is a flowchart of a remote control interrupt routine for the bedside monitor.

  This routine is started by an interrupt when the output of the remote control receiving unit 38 built in the bedside monitor 30 becomes “H” level. When entering this routine, the CPU 31 first initializes variables (step S301) and starts receiving the reader portion. It is confirmed whether or not the reader part has been normally received (step S302). If it has been received, the ring buffer is operated (step S303), and data reception is started. If the reader part cannot receive normally, it is determined that extraneous light such as sunlight is temporarily incident, and the process proceeds to an end process (step S308), and the routine is exited.

  Next, after receiving the data received in the ring buffer secured in advance on the RAM 31b, it is confirmed whether or not the data has been normally received, and further, whether or not the trailer portion has been normally received is confirmed (step S304). If completed, the ring buffer is stopped (step S305), and the contents are analyzed (step S306). As a result, if correct time data is obtained, the value is set in the RTC 31c (step S307), the end process is performed (step S308), and the routine is exited. If the time data is invalid, the process ends without writing to the RTC 31c (step S308), and the routine is exited. With this routine, the RTC 31c is set to the correct date and time without opening the menu one by one.

  Next, a second embodiment of the biological information monitor time setting device of the present invention will be described.

  FIG. 13 is a circuit block diagram of the biological information monitoring time setting device according to the second embodiment of the present invention.

  The biological information monitor time setting device 50 shown in FIG. 13 is almost the same as the biological information monitor time setting device 10 shown in FIG. 1 and will not be described in detail. Since the medium is changed from infrared to ultrasonic, the infrared LED 15, the infrared filter 15 a, and the transistor 15 b are deleted, and an ultrasonic transmission unit drive circuit 55, which is another example of the time transmission unit according to the present invention, and The change to the ultrasonic transmission unit 55a and the acquisition of time information is not via the hospital network but Japan Standard Time (Long Wave JJY), so the network connector 18c, the Ethernet (registered trademark) controller 19 The long wave receiving unit 59 and the antenna 59a are changed. Furthermore, the battery is changed from a secondary battery to a primary battery. This eliminates the need for external power supply. Specifically, the rechargeable battery 17 and the external power input terminals 18a and 18b, which are secondary batteries, are deleted, and only the primary battery 57 is provided. Further, the micro switch 58 is pulled up by a resistance element, not the connector 18c which is an electrical contact for transmitting a signal from a hospital network (Ethernet: registered trademark). The micro switch 58 has two contacts 58a. When a stand 50a described later is closed, the two contacts 58a come into contact with each other.

  14 is an external view of the biological information monitoring time setting device shown in FIG.

  14 (a), 14 (b), 14 (c), and 14 (d) show a front view, a top view, a rear view, and a bottom view of the biological information monitor time setting device 50. FIG. .

  Note that the external view of the biological information monitor time setting device 50 is almost the same as the external view of the biological information monitor time setting device 10 shown in FIG. 2 described above, and thus detailed description thereof will be omitted. The infrared filter 15a is deleted by changing the medium, and the ultrasonic transmission unit 55a shown in FIG. Since the primary battery 57 is used, only a micro switch (contact detection switch) 58 shown in FIG. 14C exists instead of the lower external power input terminals 18a and 18b. Since there is no power supply or input / output from the outside, a device corresponding to the charger 20 is unnecessary, and a stand 50a is added instead.

  FIG. 15 is a diagram showing an appearance when the biological information monitor time setting device shown in FIG. 14 is installed with the stand opened.

  As shown in FIG. 15, the biological information monitoring time setting device 50 can be installed with the stand 50a open, and functions independently from the biological information monitoring time setting device 10 described above. No cables such as cables are connected.

  FIG. 16 is a diagram showing a state in which time information is transmitted ultrasonically to a bedside monitor having an ultrasonic light receiving unit using the biological information monitor time setting device shown in FIG.

  The bedside monitor 70 shown in FIG. 16 differs from the bedside monitor 30 shown in FIG. 5 described above in that the remote control receiving unit 38 is replaced with an ultrasonic receiving unit 78.

  When the nurse folds the stand 50a, ultrasonic waves obtained by pulse-modulating the current time information are periodically output via the ultrasonic transmission unit 55a, and the ultrasonic transmission unit 55a of the biological information monitor time setting device 50 is placed in a white coat pocket or the like. When approaching the bedside monitor 70 with the transmission hole facing outward, the ultrasonic wave receiving unit 78 of the adjacent bedside monitor 70 receives the ultrasonic wave emitted from the ultrasonic wave transmitting unit 55a and performs signal processing. And the time is changed by the internal CPU.

  FIG. 17 is a block diagram of the bedside monitor shown in FIG.

  Although there is little difference from the bedside monitor 30 shown in FIG. 6 described above, the remote control receiving unit 38 is changed to an ultrasonic receiving unit 78 including an ultrasonic sensor 78a and an amplifier 78b. The amplifier 78b has a built-in bandpass filter of about 25 kHz, filters the ultrasonic wave obtained through the ultrasonic sensor 78a, amplifies it, and outputs it to the CPU 71.

  FIG. 18 is a diagram illustrating a flowchart of a main routine of the biological information monitoring time setting device according to the second embodiment.

  When the reset switch 53d (see FIG. 13) of the biological information monitoring time setting device 50 according to the second embodiment is pressed, the hardware is reset and the main routine is started. First, various circuits and memory areas are initialized (step S401), and then time information is read from the RTC 51d (step S402). Although the RTC 51d is backed up by a dedicated battery 51e, it is expected to be quite crazy when used for the first time since it is in the same state as shipped from the factory. Subsequently, the time read from the RTC 51d is displayed. The update of the time is automatically performed by an interruption process inside the CPU 51 that occurs every second (step S403).

  Next, the antenna symbol 52a (see FIG. 14) is blinked (step S404), and reception of the radio timepiece is started (step S405). If reception is not normally performed due to weak radio waves (step S406), the antenna symbol 52a is turned off (step S407), the next standby time is waited (step S408), and the process returns to step S405 again. Try to receive.

  When data can be received in step S406 and normal data is obtained as a result of decoding, the antenna symbol 52a is turned on (step S409), the reception time is set in the RTC 51d (step S410), and the reception time is received. Is displayed (step S411). Next, it is checked whether alarm 1 is valid and the current time has passed the set time of alarm 1 (step S412). If not, alarm 2 is still valid and the current time is set to the time of alarm 2. It is confirmed whether or not past (step S413). If the set time of either alarm 1 or alarm 2 has passed, the buzzer 54 is sounded with a continuous sound of “pip pip pip ...” (step S414). Furthermore, it waits until the next scheduled reception time (step S415), and returns to step S405 again to perform reception. If normal reception is possible in step S406, the RTC 51d is slightly out of order and may be received about once a day. If normal reception is not possible in step S406, the reception operation is performed again after waiting for 15 minutes. In addition, if it still cannot be received, the clock can be set manually as described later.

  FIG. 19 is a diagram showing a flowchart of an interrupt routine by a switch.

  When any one of the switches 53a, 53b, 53c is pressed or the stand 50a is closed and the contact 58a of the micro switch 58 is touched, an interruption occurs by changing from "H" level to "L" level. to go into.

  First, after performing a chattering process or the like from a switch, it is determined which switch has been pressed (step S501). If it is determined that the switch 53a has been pressed, the process proceeds to step S502, and then the mode setting subroutine is entered (step S503). The mode setting method is the same as that described with reference to the state transition diagrams of the mode setting in FIGS. 11A, 11B, and 11C, and will not be described here. When the desired mode is set, this routine is exited.

  If it is determined in step S501 that the switch 53b has been pressed, the process proceeds to step S504, and the buzzer 54 beeps with a continuous beep because the set time of alarm 1 or alarm 2 of the clock has been reached. After it is determined that the buzzer 54 has stopped ringing (step S505), the routine is exited.

  Further, if it is determined in step S501 that the switch 53c is pressed, the process proceeds to step S506, and the set times of the alarm 1 and the alarm 2 of the clock are alternately displayed every 2 seconds while the switch 53c is pressed (step S506). S507), and continues until the switch 53c is released (step S508). When the switch 53c is released, the routine is exited.

  If it is determined in step S501 that the contact 58a is in contact, the process proceeds to step S509, where the CPU 51 initializes the variable area and timer 51f necessary for calculation (step S510), and starts the timer 51f. (Step S511), the current time is read from the RTC 51d (Step S512), encoded to generate transmission pulse data (Step S513), the transmission symbol 52b is turned on, and the ultrasonic transmission unit drive circuit 55 performs the ultrasonic transmission unit 55a. Is driven and transmitted (step S514).

  Next, the state of the contact 58a is confirmed, and if it is in contact, it is determined that the biological information monitoring time setting device 50 is still in use (step S515). Subsequently, the value of the timer 51f is confirmed and the previous start or It is determined whether or not 30 minutes or more have elapsed since the clear (step S516). If not, the process returns to step S512, and if it has elapsed, the state of the switch 53b is further confirmed (step S517) and pressed. If not, it is determined that the biological information monitoring time setting device 50 is left unattended, and the buzzer 54 is continuously sounded with an intermittent sound “pipipipi, pipipipi…” (step S518), and the process returns to step S517. If the switch 53b has been pressed in step S517, the biological information monitoring time setting device 50 determines that it is still in use even after 30 minutes have passed since the previous start or clear, and stops the buzzer 54 (step S519). Further, the timer 51f is cleared (step S520), and the process returns to step S512.

  On the other hand, if the contact 58a is not touched in step S515, it is assumed that the stand 50a is pulled out again and installed on the desk or the like, and the beep sound is silenced, the timer 51f is stopped, and the memory area is released. An end process is performed (step S521), and this routine is exited.

  Here, in the encoding and transmission of time information performed in step S513 and step S514, the transmission carrier frequency of the ultrasonic wave is a specific frequency between 25 and 50 kilohertz determined by the transmission / reception unit, and the transmission interval is 10 to 20 seconds. The transmission format may be the same as that shown in FIGS. 7 and 8 described above.

  Next, a biological information monitoring time setting device according to a third embodiment of the present invention will be described. The biometric information monitor time setting device of the third embodiment is a biometric information monitor time setting device that adjusts the time using infrared rays in the same manner as the biometric information monitor time setting device 10 of the first embodiment. The time information is also sent to the bedside monitor that can be operated by the remote control instead of the device, when other operations that are not set by the remote control are performed by the remote control. The time of the bedside monitor is adjusted without doing. Since the operation seems to be exhausted by the biological information monitoring time setting devices 10 and 50 of the first and second embodiments, details will not be described.

  In the biological information monitor time setting device 10 of the first embodiment, infrared light, a wired network, and a secondary battery, and in the biological information monitor time setting device 50 of the second embodiment, an ultrasonic wave, a built-in radio clock, and a primary battery are called. The combination is described, but the present invention is not limited to this. In addition, the transmission / reception medium in the biological information monitor time setting device of the present invention is not limited to infrared rays or ultrasonic waves, and it goes without saying that other media may be used. Both can be freely changed within the scope of the idea of the present invention.

1 is a circuit block diagram of a biological information monitor time setting device and a charger according to a first embodiment of the present invention. It is an external view of the biometric information monitor time setting apparatus shown in FIG. It is a figure which shows the external appearance of the charger shown in FIG. It is a figure which shows the state by which the biometric information monitor time setting apparatus shown in FIG. 2 was set to the charger. It is the figure which showed a mode that time information was projected on two bedside monitors with an infrared light-receiving part by infrared rays using the biological information monitor time setting apparatus shown in FIG. 3 is a block diagram of the bedside monitor 30. FIG. It is a figure which shows the light projection waveform and light reception waveform in the biological information monitor time setting apparatus of 1st Embodiment. It is a figure which shows the output format of the time information in the biometric information monitor time setting apparatus of 1st Embodiment. It is a figure which shows the flowchart of the main routine of the biometric information monitoring time setting apparatus of 1st Embodiment. It is a figure which shows the flowchart of the interruption routine by a switch. It is a state transition diagram of mode setting. It is a figure which shows the flowchart of the remote control interruption routine of a bedside monitor. It is a circuit block diagram of the biological information monitor time setting apparatus of 2nd Embodiment of this invention. It is an external view of the biometric information monitor time setting apparatus shown in FIG. It is a figure which shows an external appearance when the stand is opened and the biological information monitor time setting apparatus shown in FIG. It is the figure which showed a mode that time information was transmitted with a ultrasonic wave to the bedside monitor which has an ultrasonic light-receiving part using the biological information monitor time setting apparatus shown in FIG. It is a block diagram of the bedside monitor shown in FIG. It is a figure which shows the flowchart of the main routine of the biometric information monitoring time setting apparatus of 2nd Embodiment. It is a figure which shows the flowchart of the interruption routine by a switch. It is a figure which shows the structure of the conventional hospital network system.

Explanation of symbols

10, 50 Biological information monitor time setting device 11, 31 CPU
11a, 31a ROM
11b, 31b RAM
11c, 32 Liquid crystal driver (LCDr)
11d, 31c Real time clock (RTC)
11e Backup battery 11f Timer (TIMER)
11g, 31d Oscillator 12, 32a Liquid crystal panel (LCD)
12a-12m Symbol 13a, 13b, 13c, 13d Switch 14, 34 Buzzer 14a Buzzer ring 15 Infrared LED
15b Transistor 16, 31e Dip switch 16a Dip switch cover 17 Rechargeable battery 17a Battery cover 18a, 18b External power input terminal 18c, 25a, 25b, 25c Connector 19 Ethernet (registered trademark) controller 20 Charger 21, 46 Power cable 22 Bridge IC
23 Transformer 24 Regulator 26 Network connector 30, 49, 70 Bedside monitor 30a Digital board 33 Membrane switch 35 Alarm lamp driver 35a Alarm lamp 36 Telemeter transmission unit 36a, 59a Antenna 37 External input / output driver 37a, 41a, 42a Connection terminal 38 Remote control Reception unit 39 IC card driver 39a IC card slot 40 Analog board 41 Oxygen saturation (SpO2) processing circuit 42 Electrocardiogram (ECG) processing circuit 43 Impedance respiration (Resp) processing circuit 44 Non-invasive blood pressure (NIBP) unit 44a Joint 45 Power supply Circuit 47 Charging circuit 48 Battery 50a Stand 55 Ultrasonic transmission unit drive circuit 55a Ultrasonic transmission unit 57 Primary battery 8 microswitches 58a contacts 59 long wave receiving unit 78 ultrasonic reception unit 78a ultrasonic sensor 78b Amplifier

Claims (6)

A time acquisition unit for acquiring the current time from the outside;
In response to the setting of the current time acquired by the time acquisition unit, following the setting, a time management unit that autonomously manages the current time;
A biological information monitor time setting device comprising: a time transmission unit that receives an operation and transmits a current time managed by the time management unit to a bedside monitor that detects biological information of a patient.   The time acquisition unit acquires the current time from the in-hospital system including the bedside monitor and a central monitor that receives patient biometric information from the bedside monitor and manages the patient biometric information. The biological information monitor time setting device according to claim 1.   2. The biological information monitor time setting device according to claim 1, wherein the time acquisition unit acquires the current time from a standard time station.   The time transmitting unit receives an operation for instructing the biological information monitor time setting device to perform a predetermined process other than the current time transmission, executes the other predetermined process, and is directed to the bedside monitor. The biological information monitor time setting device according to claim 1, wherein the current time is transmitted.   2. The biological information monitor time setting device according to claim 1, wherein the time transmission unit transmits the current time to the bedside monitor by infrared communication.   The biological information monitor time setting device according to claim 1, wherein the time transmission unit transmits the current time to the bedside monitor by ultrasonic communication.

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