JP4629521B2 - Bed operation system - Google Patents

Description

  The present invention relates to a bed operation system for a bed having a movable mechanism such as a back raising mechanism.

  In general, in a hospital, a bed having a movable mechanism such as a back raising mechanism is used for a patient who is difficult to get up by himself while lying in the bed. Such a bed is provided with a remote control unit for operating the back raising mechanism.

Remote control units include a wired type and a wireless type using infrared light in the same way as a television (for example, Patent Document 1).
Japanese Patent No. 2863706

The wired remote control unit is very inconvenient because the cord may get entangled with the futon on the bed or the patient's body, or the cord may break.
The wireless remote control unit that uses infrared light is easy to use as long as there is no cord, but because infrared light is directional, transmission and reception are not possible if there is a shield such as a futon between transmission and reception. Become.

  In view of the above circumstances, an object of the present invention is to provide a bed operation system capable of always and reliably operating a movable mechanism of a bed without being affected by a futon on the bed. To do.

The bed operation system according to the first aspect of the present invention has an operation means for operating the movable mechanism of the bed and a call button for calling a person, and the frequency of surrounding radio waves when operating the operation means and the call button respectively. Means for selecting a frequency different from the detected frequency as a transmission frequency, an operation signal corresponding to the operation of the operation means, and identification information unique to the operation target bed is transmitted by weak radio waves of the selected frequency Means for transmitting a call signal corresponding to the operation of the call button by the weak radio wave having the selected frequency; detecting a special mode operation of the operating means and detecting the special mode signal by the weak radio wave having the selected frequency at the time of detection; and wirelessly remote control unit having means for transmitting, provided in the bed, the remote controller It means for receiving a weak radio wave transmitted from over Ruyunitto, means for setting the special mode when the special mode signal is included in the received signal, the non-set when the special mode is included in the received signal Means for driving and controlling the movable mechanism in response to an operation signal included in the received signal only when the identification information is unique to the bed provided with the receiving unit; A receiving unit having means for driving and controlling the movable mechanism in accordance with an operation signal included in the received signal regardless of the presence or absence of the identification information in the received signal .

The bed operation system according to a second aspect of the present invention is the bed operation system according to the first aspect of the present invention, further installed in a management receiving unit for receiving a weak radio wave transmitted from the remote control unit and a management center where a person resides. When the operation signal is included in the reception signal of the management receiving unit, the contents of the operation signal are notified, and when the call signal is included in the reception signal, the ringing sound corresponding to the call signal is transmitted. And a management unit that emits .

  According to the bed operation system of the present invention, the movable mechanism of the bed can always be reliably operated without being affected by the futon on the bed by the weak radio wave transmitted from the wireless remote control unit. .

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, B is a bed which can be moved by a base frame 1 and casters 2 provided at four corners of the base frame 1. A support frame 3 is provided on the base frame 1 and in a state of being separated from the base frame 1. Brackets 4 are respectively suspended from the four corners of the support frame 3, and the support frame 3 is held by the brackets 4.

  A floor plate body 5 is disposed on the support frame 3. The floor board body 5 includes four floor boards 6, 7, 8, and 9. The floor board 7 is fixed at a central position in the longitudinal direction of the support frame 3. And the floor board 6 is rotatably connected to the one end part of the floor board 7, and the floor board 8 is rotatably connected to the other end part of the floor board 7. Further, a floor plate 9 is rotatably connected to an end portion of the floor plate 8.

  A drive unit 11 is provided on the lower surface of the support frame 3. The drive unit 11 includes a motor 12 on the side surface of the housing. And in the housing | casing of the drive unit 11, the lower end part of the arms 14 and 15 is pivotally supported by the both ends along the longitudinal direction of the support frame 3. As shown in FIG. When the power of the motor 12 is transmitted to the lower ends of the arms 14 and 15, the distal ends of the arms 14 and 15 are rotated. Rollers 14a and 15a are provided at the tips of the arms 14 and 15, and the rollers 14a and 15a are in rolling contact with the lower surfaces of the floor plates 6 and 8, respectively.

When the motor 12 is operated, the arms 14 and 15 are turned upright in the direction shown by the arrows, and the rollers 14a and 15a are brought into rolling contact with the lower surfaces of the floor plates 6 and 8, whereby the floor plates 6 and 8 are rotated twice. Stand up to the state shown by the chain line. In conjunction with the rising of the floor plate 8, the floor plate 9 also rises, and the floor plates 8, 9 are bent into a U-shape.
A user who is supine on the floor board 5 via a mattress (not shown), for example, a patient, receives the rising and bending of the floor boards 8 and 9 while the upper body is raised as the floor board 6 rises, and the legs are Lifted. Therefore, the patient can raise the upper body without applying any force and without the buttocks located on the floor plate 7 moving forward.
The floor plate 5, the motor 12, the arms 14 and 15, etc. constitute a back raising mechanism that is a movable mechanism.

  A light emitting diode (LED) 16 is attached to the end of the support frame 3 in the longitudinal direction and at a position where a nurse or the like can easily see. The light emitting diode 16 is used for confirming whether a special mode to be described later is set.

On the other hand, a wireless remote control unit (abbreviated as a remote control unit) 20 that can be operated by a patient or a nurse is prepared for each bed B. A receiving unit 40 is attached to the side surface of the housing 12.
As shown in FIG. 2, the remote control unit 20 has operation buttons 21, 22, 23, 24, 25, and 26 such as “search” and “go up” as operation means for operating the drive unit 11 of the bed B. , A call button for calling a person (nurse), a so-called nurse call button 27, and an operation signal corresponding to the operation of the operation buttons 21, 22, 23, 24, 25, 26 and the operation of the nurse call button 27. The nurse call signal is transmitted by weak radio waves. This weak radio wave is the same as the weak radio wave used in a keyless entry system for an automobile door.

  As shown in FIG. 3, the control circuit of the remote control unit 20 includes an operation switch group 31, a control unit 32, and transmission / reception of radio waves, which are a group of switches of the operation buttons 21, 22, 23, 24, 25, 26 and the nurse call button 27. It is comprised by the radio | wireless transmission / reception part 33 etc. which perform.

And the control part 32 has the following means (1)-(3) as main functions.
(1) Generates an operation signal according to the operation of the operation buttons 21, 22, 23, 24, 25, and 26 and a nurse call signal according to the operation of the nurse call button 27, and is unique to the bed B to be operated Means for reading information so-called ID from the internal memory, and transmitting the weak radio waves of the operation signal, ID, and nurse call signal from the wireless transmission / reception unit 33.
(2) Means for detecting a special mode operation of the operation buttons 21, 22, 23, 24, 25, and 26, and causing the radio transmission / reception unit 33 to transmit a weak radio wave of the special mode signal at the time of detection.
(3) Means for detecting the frequency of the surrounding radio wave and selecting a frequency different from the detected frequency as the transmission frequency of the wireless transmission / reception unit 33.

  As shown in FIG. 2, the receiving unit 40 includes a wireless receiving unit 41 that receives weak radio waves transmitted from the remote control unit 20, a control unit 42, an output circuit 43 that outputs a control signal, and the like.

And the control part 42 has the following means (11)-(14) as main functions.
(11) Only when the ID included in the reception signal of the wireless reception unit 41 is unique to the bed B in which the reception unit 40 is provided, it corresponds to the operation signal included in the reception signal Means for outputting a drive control signal from the output circuit 43;
(12) Means for setting a special mode when a special mode signal is received.
(13) Means for turning on the light emitting diode 16 when the special mode is set.
(14) Means for outputting a drive control signal corresponding to the operation signal from the output circuit 43 regardless of the presence or absence of the ID when setting the special mode.

  The drive unit 11 has a motor drive circuit 13 that drives the motor 12 in accordance with a control signal output from the receiving unit 40. The motor drive circuit 13 includes a motor power supply for the motor 12.

A management receiving unit 60 is attached to the ceiling surface 50 of the hospital room where the bed B is installed. The management receiving unit 60 receives weak radio waves transmitted from the remote control unit 20. This received signal is sent to a management unit 61 of a management center (also referred to as a nurse center) where a nurse resides by a signal cable. When the operation signal and ID are included in the received signal, the management unit 61 notifies the operation signal and the content of the ID by displaying on the liquid crystal display unit, and includes the nurse call signal in the received signal. Emits a ringing tone (buzzer, chime, etc.) according to the nurse call signal.
Next, the operation of the above configuration will be described with reference to the flowcharts of FIGS. The flowchart of FIG. 4 shows the operation of the remote control unit 20, and the flowchart of FIG. 5 shows the operation of the reception unit 40.

  First, in the remote control unit 20, when any one of the operation buttons 21, 22, 23, 24, 25, 26 and the nurse call button 27 is pressed (YES in Step 101), the radio waves around the remote control unit 20 are A frequency is detected (step 102). Then, a frequency different from the detected frequency is selected as the transmission frequency of the remote control unit 20 (step 103).

  If the pressing operation is a bed operation by any of the operation buttons 21, 22, 23, 24, 25, and 26 (YES in step 104), the ID of the bed B that is the operation target of the remote control unit 20 and the operation button 21 , 22, 23, 24, 25, 26, an operation signal corresponding to the pressing operation is transmitted from the remote control unit 20 by the weak radio wave of the selected frequency (step 105).

  If the pressing operation is a nurse call operation by the nurse call button 27 (YES in step 106), the remote control unit 20 generates a nurse call signal corresponding to the pressing operation of the nurse call button 27 by the weak radio wave having the selected frequency. (Step 107).

  If the pressing operation is a special mode operation of the operation buttons 21, 22, 23, 24, 25, and 26 (YES in step 108), the special mode signal is transmitted from the remote control unit 20 by the weak radio wave having the selected frequency. It is transmitted (step 109). The special mode operation of the operation buttons 21, 22, 23, 24, 25, and 26 includes, for example, the “back-up” operation button 21, the “back-up” operation button 22, and the “up-up” operation button 23, four of the operation buttons 24 of “Ashi-Sagaru” are simultaneously pressed for 1 second or more. This operation pattern is an example, and various operation patterns can be adopted.

  In the receiving unit 40, when receiving (YES in Step 201), if the received signal does not include the special mode signal (YES in Step 202) and the special mode is not set (YES in Step 203), It is determined whether an ID is included in the received signal (step 204). If the ID is included (YES in step 204) and the ID is an appropriate one that matches the ID stored in advance (YES in step 205), the motor power supply of the motor drive circuit 13 in the drive unit 11 Is turned on (step 206). Then, the drive of the motor 12 of the drive unit 11 is controlled according to the operation signal included in the received signal (step 207). After this drive control is completed, the motor power of the motor drive circuit 13 in the drive unit 11 is turned off (step 208).

  If the received signal does not contain an ID (NO in step 204), or if the received signal contains an ID but the ID does not match the pre-stored ID ( In step 205, the motor power of the motor drive circuit 13 in the drive unit 11 is not turned on.

  At the time of reception (YES in step 201), if a special mode signal is included in the received signal (NO in step 202), the special mode is set for a predetermined time t (step 209). Accordingly, the light emitting diode 16 is turned on for a predetermined time t (step 210).

  At the time of the next reception (YES in step 201), if the special mode is set (NO in step 203), the motor power of the motor drive circuit 13 in the drive unit 11 is turned on regardless of the presence / absence and appropriateness of the ID ( In step 206), the motor 12 of the drive unit 11 is driven and controlled in accordance with the operation signal included in the received signal (step 207). Then, after this drive control is completed, the motor power of the motor drive circuit 13 in the drive unit 11 is turned off (step 208).

This special mode is used when, for example, a single nurse operates a plurality of beds B in the same hospital room sequentially with one remote control unit 20. For the nurse, it is possible to appropriately recognize which bed B is the operation target by turning on the light emitting diode 16.
In addition, about the special mode, although setting was restrict | limited by time, it is good also as a structure which cancels | releases not only by time but by exclusive operation.

  On the other hand, the weak radio waves transmitted from the remote control unit 20 are also received by the management receiving unit 60 on the ceiling surface 50 of the same hospital room. This received signal is sent to the management unit 61. In the management unit 61, when an operation signal and an ID are included in the received signal, the contents of the operation signal and the ID are notified to the nurse by displaying on the liquid crystal display unit. Moreover, in the management unit 61, when a nurse call signal is included in the received signal, a ringing tone corresponding to the nurse call signal is emitted.

  As described above, by emitting a weak radio wave from the remote control unit 20 to drive and control the drive unit 11 of the bed B, even if the futon and the floor plate body 5 exist between the remote control unit 20 and the reception unit 40, The drive unit 11 can always be reliably operated without being affected by the futon, the floor plate body 5 and the like. Naturally, since there is no cord between the remote control unit 20 and the receiving unit 40, there is no problem of the cord being entangled or disconnected, and the operability is greatly improved.

  Since the nurse call button 27 is provided on the remote control unit 20, the operation of the bed B and the calling of the nurse can be performed together by one remote control unit 20, and the convenience is greatly improved.

  Since the ID is added to the transmission signal of the remote control unit 20 and the receiving unit 40 includes the proper ID in the reception signal, the motor power is turned on and the drive control is executed. Even if B and a plurality of remote control units 20 are present, the correspondence between one bed B and one remote control unit 20 can be maintained, and erroneous operation due to weak radio waves of other remote control units 20 can be prevented. Can be prevented.

  Moreover, since the motor power is not turned on when the proper ID is not included in the received signal, the motor 12 does not move and is safe even when a strong radio wave such as illegal radio is received by the receiving unit 40.

  Since the frequency of radio waves around the remote control unit 20 is detected and a frequency different from the detected frequency is selected as the transmission frequency of the remote control unit 20, mutual interference of radio waves can be prevented. As a result, the weak radio wave emitted from the remote control unit 20 can be surely made to reach the receiving unit 40, and a reliable operation on the bed B is always possible.

  Since the operation signal for the bed B and the contents of the ID are notified by the management unit 61 of the management center, the nurse resident in the management center can monitor the operation status of the bed B for each patient and from a remote location. When the bed B is moved, an unnecessary operation by a dangerous patient can be found, and safety is improved.

  Since the plurality of beds B can be sequentially operated by one remote control unit 20 by the setting of the special mode, it is convenient. In addition, in this case, since the light emitting diode 16 attached to the bed B to be operated is turned on, the operation target is not mistaken.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment.

The figure which shows the whole structure of one Embodiment of this invention. The figure which shows the external appearance of the remote control unit in the embodiment. The block diagram which shows the control circuit of the remote control unit and receiving unit in the embodiment. The flowchart for demonstrating the effect | action of the remote control unit in the embodiment. The flowchart for demonstrating the effect | action of the receiving unit in the embodiment.

Explanation of symbols

  B ... Bed, 1 ... Base frame, 2 ... Caster, 3 ... Support frame, 4 ... Bracket, 5 ... Floor plate body, 6, 7, 8, 9 ... Floor plate, 11 ... Drive unit, 12 ... Motor, 13 ... Motor drive Circuit, 14, 15 ... Arm, 16 ... Light emitting diode, 20 ... Remote control unit, 21, 22, 23, 24, 25, 26 ... Operation button, 27 ... Nurse call button, 32 ... Control unit, 33 ... Wireless transmission / reception unit , 40 ... receiving unit, 41 ... wireless receiving unit, 42 ... control unit

Claims (2)

In a bed having a movable mechanism,
It has an operation means for operating the movable mechanism and a call button for calling a person, and when operating the operation means and the call button, the frequency of the surrounding radio wave is detected and a frequency different from the detected frequency is transmitted. Means for selecting as, means for transmitting the operation signal according to the operation of the operation means and identification information specific to the bed to be operated by weak radio waves of the selected frequency, and a call signal according to the operation of the call button Means for transmitting by means of weak radio waves of the selected frequency, a wireless remote control unit having means for detecting special mode operation of the operating means and transmitting special mode signals by means of weak radio waves of the selected frequency ; and
Means provided on the bed for receiving weak radio waves transmitted from the remote control unit, means for setting a special mode when the received signal includes the special mode signal, and when the special mode is not set Means for driving and controlling the movable mechanism according to the operation signal included in the received signal only when the identification information included in the received signal is unique to the bed provided with the receiving unit. A receiving unit having means for driving and controlling the movable mechanism according to an operation signal included in the received signal regardless of the presence or absence of the identification information in the received signal when the special mode is set ;
A bed operation system characterized by comprising: The bed operation system according to claim 1,
A management receiving unit for receiving weak radio waves transmitted from the remote control unit;
When the operation signal is included in the reception signal of the management receiving unit installed in a management center where a person is resident, the contents of the operation signal are notified, and the call signal is included in the reception signal A management unit that emits a ringing tone in response to the call signal,
A bed operation system further comprising:

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