JPH10248816A - Patient position detecting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a patient position detecting system capable of detecting the position of a patient in a ward. SOLUTION: In each of areas in a ward, an infrared transmitter 2 transmitting position data indicating that area is installed, and a patient is made to carry a medical transmitter 4 receiving the position data transmitted from the infrared transmitter 2 and transmitting patient position data obtained by adding an identification cord, electrocardiogram data, and nurse call data to the position data and FM-modulating it; in a doctor's room or nurses' room, etc., a monitor 6 is installed which receives the patient position data transmitted from the medical transmitter 4 carried by the patient, displays an electrocardiographic complex, the number of heart rate, the position of the patient, the name of the patient, and the like on a display part according to the patient position data, and prints out them from a recording part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a patient position detecting system for detecting the location of a patient in a ward.

[0002]

2. Description of the Related Art Most inpatients are bedridden, but patients with arrhythmia or myocardial infarction can stay in a normal life unless they are hospitalized for follow-up observations and have no noticeable symptoms. I am not in a sickroom. For this reason, when it is necessary to call the patient, private broadcasting is used.

[0003]

However, there is a problem that if the patient suffers a seizure and falls down or is located in a place where private broadcasts cannot be heard, the location cannot be confirmed. .

Accordingly, an object of the present invention is to provide a patient position detecting system capable of detecting a location of a patient in a ward.

[0005]

The basic concept of the present invention will be described below. In order to be able to confirm the patient's whereabouts in the ward, an infrared transmitter that transmits location information indicating the location is installed at each location in the ward, and the patient receives the infrared transmitter. The medical information transmitter that receives the location information and sends the location information in a different transmission format is carried, and in the doctor's room and nurse's room, the location information transmitted from the medical transmitter carried by the patient is received. Then, a monitor for displaying the position information is installed.

[0006] If the medical transmitter has specific identification information and the identification information is transmitted together with the position information, it can be distinguished from other medical transmitters and the patient can be specified. . In addition, the medical transmitter is provided with an infrared light receiving section connected via a cable, and by providing a detachable stopper on the clothes on the infrared light receiving section, the medical transmitter can be attached to any part of the clothes, and the red Infrared rays from the outside transmitter can be reliably received. Also, if the medical transmitter measures biological information such as electrocardiogram, pulse wave and blood pressure, and transmits the result together with the position information and identification information, the current physical condition can be confirmed in addition to the patient's location. can do.

[0007] The invention of claim 1 based on this idea is provided with an infrared transmitter that is installed in each of the hospital ward divided into a plurality of areas and transmits position information using infrared rays, and a patient carries the infrared transmitter. A medical transmitter that receives the position information from the infrared transmitter, transmits the position information from the infrared transmitter and identification information for identifying itself using radio waves, and And a monitor that receives the transmitted radio wave through an antenna installed in the ward, demodulates the position information and the identification information from the received signal, and displays or records the demodulated position information and identification information.

Further, according to a second aspect of the present invention, the medical transmitter has an infrared light receiving section connected via a cable,
The infrared light receiving portion is provided with a detachable stopper for clothes. Further, in the invention according to claim 3, the medical transmitter includes:
Having at least a biological information measuring unit for measuring an electrocardiogram, transmitting the measurement result of this biological information measuring unit together with the position information and identification information, and the monitor is obtained by receiving a transmission radio wave from the medical transmitter. The position information, the identification information and the biological information are demodulated from the received signal and displayed or recorded.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a patient position detecting system according to the present invention will be described below with reference to the drawings. A. Configuration of Patient Position Detection System FIG. 1 is a block diagram showing a configuration of an embodiment of a patient position detection system according to the present invention. In this figure, a patient position detection system 1 includes an infrared transmitter 2 installed in each of a plurality of areas in a hospital ward, a medical transmitter 4 carried by a patient 3, and a medical transmitter 4 And a monitor 6 for receiving a transmission radio wave from the clinic via an antenna 5 installed in the hospital ward.

(A) Configuration of Infrared Transmitter 2 The infrared transmitter 2 transmits position information indicating the position of the installation area using infrared rays, and outputs infrared rays as shown in FIG. It comprises a light emitting diode 10 and a light emission control unit 11 for controlling light emission of the light emitting diode 10. The light emission control unit 11 drives the light emitting diode 10 based on control data stored in a built-in memory (not shown) to transmit position data. In this case, a synchronization signal is added to the position data as shown in FIG.

(B) Configuration of the Medical Transmitter 4 The medical transmitter 4 receives the position data transmitted from the infrared transmitter 2, and adds an identification code to the received position data.
Patient position data to which electrocardiogram data and nurse call data are added is FM-modulated and transmitted. FIG. 4 is a diagram showing a configuration of the patient position data. Note that a synchronization signal is also added to this patient position data. FIG. 5 is a block diagram showing the configuration of the medical transmitter 4. In this figure, a photodiode 15 receives infrared rays from the infrared transmitter 2. I-
The V converter 16 converts the current output of the photodiode 15 into a voltage. The amplifier 17 amplifies the output of the IV converter 16 to a predetermined level, and the demodulator 18 demodulates the position data from the output of the amplifier 17. Data conversion unit (S / P unit) 1
Numeral 9 converts the serial position data demodulated by the demodulator 18 into parallel data. The position data converted in parallel by the data conversion unit 19 is taken into the control unit 14.

The electrocardiogram electrode 20 is mounted on a chest or the like of a patient having the medical transmitter 4. The amplifier 21 amplifies the electrocardiogram signal captured by the electrocardiogram electrode 20 to a predetermined level, and the A / D converter 22 converts the electrocardiogram signal amplified by the amplifier 21 into a digital signal. The electrocardiogram signal converted into a digital signal by the A / D converter 22 is taken into the control unit 14. The nurse call switch 23 is pressed when the patient makes a nurse call. The output of the nurse call switch 23 is taken into the control unit 14.

The control unit 14 executes a processing program based on the outputs from the A / D converters 19 and 23 and the output from the nurse call switch 23, and supplies a processing result to the data conversion unit 26. ROM 24 connected to control unit 14
Stores a processing program and an identification code, and the RAM 25 stores data of a processing process. The data converter (P / S unit) 26 converts the parallel data supplied from the controller 14 into serial data. The modulator 27 performs FM modulation on the serial data from the data converter 26. The power amplifier 28 power-amplifies the signal from the modulator 27 and emits the signal from the antenna 29 to the air.

FIG. 6 is a perspective view showing the appearance of the medical transmitter 4. A nurse call switch 23 is provided at the center of the front part of the main body.
Above 3, an infrared receiving window 30 is provided. Inside the infrared receiving window 30, the photodiode 15 described above is provided.
Is arranged. A power switch 31, a light emitting diode 32 for displaying the on / off state of the power switch 31, a jack 33 for connecting an electrocardiogram electrode section 38, and a jack 34 for connecting an infrared light receiving section 43 are provided on the upper surface of the main body. Is provided.

The electrocardiogram electrode section 38 includes an electrocardiogram electrode 20 and
It comprises a circular tape 35 for attaching the electrocardiogram electrode 20 to the patient's skin, a cable 36, and a plug 37. In this case, the ECG electrode 20 is connected to the cable 3
5, and a plug 37 is provided at the other end. The infrared light receiving unit 43 includes an infrared light receiver 39 having a photodiode (not shown) for detecting infrared light, a clip 40 attached to the infrared light receiver 39, a cable 41, and a plug 42. . In this case, the infrared light receiver 39 is connected to one end of the cable 41, and the plug 42 is connected to the other end. The infrared receiver 43 is used as an option, and the infrared light from the infrared transmitter 2 is received by the photodiode 15 provided in the main body without using the infrared receiver 43. Further, since the infrared light receiving section 43 can be attached to any part of the clothes by the clip 40, there is an advantage that infrared light from the infrared transmitter 2 can be reliably received.

(C) Configuration of Monitor 6 The monitor 6 receives FM radio waves from the medical transmitter 4 via the antenna 5 (see FIG. 1) installed in the ward, and receives position data, an identification code, The ECG data and nurse call data are demodulated and displayed. FIG. 7 is a block diagram showing the configuration of the monitor 6. In this figure, a receiving unit 50 selectively receives an FM radio wave from the medical transmitter 4 via an antenna 5 and supplies an output thereof to a demodulation unit 51. The demodulation unit 51 demodulates the patient position data from the reception signal of the reception unit 50. Data conversion unit (S / P unit) 52
Converts the serial patient position data demodulated by the demodulation unit 51 into parallel data. The patient position data converted in parallel by the data converter 52 is taken into the controller 53.

The control unit 53 stores the fetched patient position data in a storage device (hard disk) 56, and further displays the position data of the patient position data, the identification code and the electrocardiogram data on a display unit 57 such as a CRT and a recording unit 58. Print out from. Here, FIG. 8 is an example of display on the display unit 57, and the names of four patients (Jiro Suzuki,
(Taro Yamada, Takuya Yamamura, Toshio Sato), and the electrocardiogram waveform, heart rate, and location of each person are displayed. Control unit 53
Supplies a control signal to the alarm sound generation section 59 when it determines that the nurse position data is included in the patient position data. The alarm sound generation unit 59 includes the control unit 53
When a control signal is supplied from the, an alarm signal is created and supplied to the speaker 60 to generate an alarm sound. A processing program is stored in a ROM 54 connected to the control unit 53. A RAM 55 is used in the operation of the control unit 53.

B. Operation of Patient Position Detection System Next, the operation of the patient position detection system having the above configuration will be described. (A) Operation of Medical Transmitter 4 FIG. 9 is a flowchart showing the operation of the medical transmitter 4. First, in step S10, data is taken in from the data conversion unit 19, and then, in step S12, it is determined whether or not the data has position data. In this determination, when it is determined that there is no position data, step S
At 14, it is determined whether or not the nurse call switch 23 has been turned on. If it is determined that the nurse call switch 23 has been turned on, the flag F is set to "1" in step S16 and the process returns to step S10. If it is determined that the nurse call switch 23 is not turned on, the process returns to step S10 without performing any processing. .

If it is determined in step S12 that there is position data, the flow advances to step S18 to store the position data in the RAM 25. Next, at step S20, electrocardiogram data is fetched from the A / D converter 22, and the electrocardiogram data is stored in the RAM 25 at step S22. After storing the electrocardiogram data in the RAM 25, it is determined in a step S24 whether or not the flag F is "1". If it is determined in this determination that the flag F is "1", the process proceeds to step S26, and the RAM 25
The position data, electrocardiogram data, identification code, and nurse call data stored in the
To supply. In this process, the identification code is R
Read from OM24.

The data supplied to the data converter 26 is converted into serial data, then FM-modulated by the modulator 27, power-amplified by the power amplifier 28, and emitted from the antenna 29 to the air. On the other hand, if it is determined in step S24 that the flag F is not "1", the process proceeds to step S28, where the position data stored in the RAM 25, the electrocardiogram data, and the identification code are sequentially transmitted to the data conversion unit 26. Supply. In the above step S26, the position data,
After supplying the electrocardiogram data, the identification code, and the nurse call data to the data converter 26, the flag F is set to "0" in step S30, the position data is cleared in step S32, and the electrocardiogram data is cleared in step S34. It returns to step S10. On the other hand, after supplying the position data, the electrocardiogram data and the identification code to the data conversion section 26 in step S28, the position data is cleared in step S32, the electrocardiogram data is cleared in step S34, and the process returns to step S10.

(B) Operation of Monitor 6 FIG. 10 is a flowchart showing the operation of the monitor 6.
First, in step S50, data is fetched from the data conversion unit 52, and then, in step S52, it is determined whether or not the data is patient position data from the medical transmitter 4. In this determination, if it is determined that the data is not the patient position data, the process returns to step S50, and if it is determined that the data is the patient position data, the process proceeds to step S54. Step S54
In step S50, it is determined whether or not the identification code constituting the patient position data is registered in advance. If it is determined that the identification code is not registered, the process returns to step S50. If it is determined that the identification code is registered, step S50 is performed. Proceed to S56.

If it is determined that the identification code has been registered in advance and the process proceeds to step S56, it is determined whether or not there is nurse call data in the patient position data. If it is determined that there is nurse call data, an alarm is generated in step S58. A sound is generated, and then, in step S60, the electrocardiogram waveform, the patient's location, the patient's name, etc. are displayed on the display unit 57 based on the position data of the patient position data, the electrocardiogram data, and the identification code, and are printed out from the recording unit 58. I do. In this case, the heart rate is calculated from the electrocardiogram data, and the calculated value is also displayed and printed out. On the other hand, if it is determined that there is no nurse call data in the patient position data, only the processing in step S60 is performed. After performing the process in step S60, the process returns to step S50. The processes of steps S50 to S60 are performed each time the patient position information is acquired.

As described above, in this embodiment, the infrared transmitter 2 for transmitting the position data indicating the area is installed in each area in the ward, and the position transmitted from the infrared transmitter 2 is provided to the patient. Receives data and carries a medical transmitter 4 for FM-modulating and transmitting patient position data obtained by adding an identification code, electrocardiogram data and nurse call data to the position data. Patient position data transmitted from the portable medical transmitter 4 is received, and an electrocardiogram waveform, heart rate, and the like are displayed on the display unit 57 based on the patient position data.
Recorder 5 displays the patient's location, patient's name, etc.
A monitor 6 for printing out from the monitor 8 is provided. Therefore, no matter where the patient is in the ward, the location of that person can be reliably grasped. In addition, the current physical condition of the person can be confirmed from the electrocardiogram waveform and the heart rate.

In the above embodiment, only the electrocardiogram of the patient is measured. Alternatively, a pulse wave, a blood pressure, or the like may be measured and the results may be transmitted.

[0025]

According to the patient position detecting system of the present invention, an infrared transmitter is installed in each of the hospital ward divided into a plurality of areas, and position information from the infrared transmitter is received. Since a medical transmitter for transmitting its position information and identification information for identifying its own device, and a monitor for receiving and displaying or recording each information transmitted from this medical transmitter,
No matter where the patient is in the ward, the location of that person can be reliably ascertained.

According to the patient position detecting system of the present invention, the medical transmitter is provided with an infrared ray receiving section connected via a cable, and the infrared ray receiving section is provided with a detachable stopper for clothes. Therefore, it can be attached to any part of clothes, and infrared rays from the infrared transmitter can be reliably received.

According to the third aspect of the present invention, at least the electrocardiogram is measured to the medical transmitter and the result is transmitted together with the position information and the identification information. Can also be confirmed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a patient position detection system according to the present invention.

FIG. 2 is a block diagram showing a configuration of an infrared transmitter of the patient position detection system according to the embodiment.

FIG. 3 is a diagram showing position data transmitted from an infrared transmitter of the patient position detection system according to the embodiment.

FIG. 4 is a diagram showing patient position data transmitted from a medical transmitter of the patient position detection system of the embodiment.

FIG. 5 is a block diagram showing a configuration of a medical transmitter of the patient position detection system of the embodiment.

FIG. 6 is a perspective view showing an appearance of a medical transmitter of the patient position detection system according to the embodiment.

FIG. 7 is a block diagram showing a configuration of a monitor of the patient position detection system according to the embodiment.

FIG. 8 is a diagram showing an example of a display displayed on a monitor of the patient position detection system according to the embodiment.

FIG. 9 is a flowchart showing an operation of the medical transmitter of the patient position detection system of the embodiment.

FIG. 10 is a flowchart showing the operation of the monitor of the patient position detection system of the embodiment.

[Explanation of symbols]

 2 Infrared transmitter 3 Patient 4 Medical transmitter 5 Antenna 6 Monitor 23 Nurse call switch 36 Cable 38 Electrocardiogram electrode part 40 Clip 43 Infrared light receiving part 57 Display part 58 Recording part

Claims (3)

[Claims] 1. An infrared transmitter that is installed in each of a plurality of areas in a hospital ward and transmits position information using infrared light, a position carried by a patient, and a position from the infrared transmitter. A medical transmitter for receiving information and transmitting position information from the infrared transmitter and identification information for identifying itself using radio waves, and a radio wave transmitted from the medical transmitter was installed in a ward. A monitor for receiving via an antenna and demodulating and displaying or recording the position information and identification information from the received signal. 2. The medical transmitter according to claim 1, further comprising an infrared receiver connected via a cable, wherein the infrared receiver is provided with a detachable stopper for clothes. 2. The patient position detection system according to claim 1. 3. The medical transmitter has at least a biological information measuring unit that measures an electrocardiogram, and transmits a measurement result of the biological information measuring unit together with the position information and the identification information. The patient position detection according to any one of claims 1 to 2, wherein the position information, identification information, and biological information are demodulated and displayed or recorded from a reception signal obtained by receiving a transmission radio wave from the device. system.