JP2006095038A - Calling out handset for nurse call - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that nurse call systems of a hospital and a welfare/care facility causes a connection cable to be often cut during the bed transfer when a communication between a wall attaching handset and a gripping and push-button handset at the bedside is the wire system, and that an operation of replacing or charging a battery of the gripping and push-button handset to be more troublesome with increases in the number of beds when the above is the wireless system. <P>SOLUTION: The wall attaching handset regularly sends out a radio wave to apply the polling and the gripping and push-button handset is actuated by the electromotive force of the action of electromagnetic induction by the radio wave and sends back the information of the calling out push-button by the radio wave to the wall attaching handset. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a nurse call call slave used when a patient or a care receiver calls a nurse or a caregiver in a nurse call system of a hospital or welfare / care facility.

Conventional nurse call call slaves generally have a wired connection using a lead wire for connection between a wall-mounted slave and a hand-held pushbutton slave or a hand-type slave with a built-in call function. The reason for this is that the call from the bedside of the patient or the like must be transmitted to the nurse or the like reliably, and the reliability is high when wired. Moreover, if it is wired, it can be mentioned that power can be supplied from the wall-mounted slave unit to the grip push button slave unit. There is Patent Document 1 as an example of a system configured by wire. However, a system for wirelessly connecting a wall-mounted slave unit and a grip push button slave unit has also been proposed (see Patent Document 2), but the grip push button slave unit requires a power source such as a battery. It was.
Japanese Patent No. 2887552 Patent Publication 2002-0099957

In the conventional nurse call call cordless handset with a wired connection, when the bed is moved on a daily basis in hospitals and welfare / nursing facilities, the connection line of the hand push button cord wrapped around the bed is pulled with a strong tension. Damage often occurs. The hand-push button slave unit is often used near the patient's hand so that it can be called at any time, and a connection line is wound around the head rail or side rail of the bed. The bed is moved while the connection line is wound, and the connection line is disconnected.

In order to solve the drawbacks of wired connection, wireless connection using infrared rays or radio waves has been proposed. In the case of wireless connection, since power cannot be supplied from the wall mounted slave unit to the grip push button slave unit, the grip push button slave unit requires a battery. When the capacity of the battery is exhausted, the hand-push button slave unit cannot be used, so the battery must be replaced or recharged. This replacement or charging work becomes more difficult as the number of beds increases, and becomes a burden on the facility management department.

In addition, the battery-operated grip push button slave unit needs to have a function of detecting that the battery capacity is low and notifying the person of the battery, which increases the cost.

In order to solve the above-mentioned problems, the present invention adopts a wireless system for communication between a wall-mounted slave unit and a grip-push button slave unit, and the grip-push button slave unit uses an antenna by radio waves transmitted from the wall-mounted slave unit. The system operates with electromotive force generated by electromagnetic induction.

The wall mounted slave unit (5) includes an antenna (1), a transmission / reception unit (2), a CPU control unit (3), and a corridor lamp connection unit (4), and the grip push button slave unit (10) is a power source or a battery. Therefore, the push button slave unit (10) is activated by electromagnetic induction by periodically transmitting radio waves from the wall mounted slave unit (5).

The grip push button slave (10) includes an antenna (1), a transmission / reception unit (2), a CPU control unit (3), a memory unit (7), an input / output unit (8), and a call push button (9). The loop antenna generates an electromotive force by radio waves transmitted from the wall-mounted slave unit (5) by electromagnetic induction, and each part operates by the energy of the electromotive force. In response, it transmits radio waves and sends out its own unique address and call push button information.

In the wall-mounted slave unit (5), the address of the returned grip push button slave unit (10) matches the address returned from the information of the call push button, and the call push button is pressed. A call is notified from the corridor lamp connection unit (4) to the corridor lamp (6) when the current state is detected a plurality of times in succession. Furthermore, a call is notified from the corridor lamp (6) to the nurse call parent machine.

According to the present invention, since the wall-mounted slave unit and the bedside grip-push button slave unit communicate with each other wirelessly, the connection line is not disconnected when the bed is moved, and the bed can be moved freely. There is a degree.
Also, the connection line does not lie under the patient's body or wrap around the body on the bed.
Since the hand-push button slave unit operates with electromotive force due to electromagnetic induction, the fact that the battery is unnecessary means that it is cumbersome to replace the battery, charge the battery, save labor, and replace the battery itself. It becomes unnecessary.

Hereinafter, embodiments of the invention will be described with reference to the drawings.
FIG. 1 shows a wall-mounted cordless handset (5) installed in a hospital room (in a welfare facility), a hand-held push button handset (10) placed on a bed, and a corridor lamp installed on the corridor side of the entrance of the hospital room ( It is a block diagram of 6).

The wall-mounted slave unit (5) includes an antenna (1), a transmission / reception unit (2), a CPU control unit (3), and a corridor lamp connection unit (4). The CPU control unit (3) is constituted by a microcomputer and a computer peripheral circuit such as a timer, and performs a polling call of the grip push button slave unit (10) at a constant cycle by the timer. The transmission / reception unit (2) demodulates the function of radiating radio waves from the antenna (1) by modulating the digital signal of the polling call from the CPU control unit (3) to a high frequency signal, and the high frequency signal from the antenna (1), It has a function to send a response signal from the grip push button slave unit (10) to the CPU control unit (3) as a digital signal. The corridor lamp connection unit (4) has a function of notifying the corridor lamp (6) of a nurse call calling signal from the CPU control unit (3).

The grip push button slave (10) includes an antenna (1), a transmission / reception unit (2), a CPU control unit (3), a memory unit (7), an input / output unit (8), and a call push button (9). The The loop-shaped antenna (1) receives radio waves transmitted from the wall-mounted slave unit (5), generates an electromotive force by electromagnetic induction, and radiates high-frequency signals from the transmission / reception unit (2) into the space as radio waves. It has a function to do.

The transmission / reception unit (2) receives a high frequency signal from the antenna (1), demodulates it into a digital signal and sends it to the CPU control unit (3), and modulates the digital signal from the CPU control unit (3) into a high frequency signal And has a function of radiating from the antenna (1). The CPU control unit (3) is composed of a microcomputer and its peripheral circuits, receives the polling call from the wall mounted slave (5) demodulated by the transmission / reception unit (2), and compares it with the address held by itself. If they match, it sends its own address and call push button information to the transceiver (2).

The memory unit (7) stores information necessary for communication such as its own address. Since the hand-push button slave unit (10) does not have a battery, a burn-out type in which memory data is not erased even when the power is turned off or a writing type by ultraviolet rays are selected.
A plurality of call push buttons (9) are prepared so that the contents of the call can be understood to some extent even if the nurse and the patient do not talk. For example, a plurality of calls such as a general call, a drip end call, a toilet assistance call, a condition deterioration and an emergency call are prepared. As a result, the call function can be deleted in some cases.

FIG. 2 shows the state of the call push button, the polling call of the wall mounted slave unit at that time, the response state of the grip push button slave unit, and the state of detecting the nurse call call with time taken on the horizontal axis.
Since the grip push button slave does not have a battery, the state of the call push button cannot be maintained. The wall mounted slave unit reads the state of the call push button when polling. It is necessary to poll at a cycle sufficiently faster than the time the patient is pressing the call button. Therefore, it is set so that polling can be performed three times or more even with the minimum call pressing time. In the CPU controller (3) of the wall mounted slave unit, when there is a state where the call push button is continuously pressed (ON state),
It is determined that the call is a nurse call, and the call is transmitted to the nurse call parent machine via the corridor lamp.

Block diagram of wall mounted slave unit and grip push button slave unit Explanatory diagram to detect call push button status, polling and answering status, nurse call

Explanation of symbols

1.
Antenna 2.
2. Transmission / reception unit
CPU control unit 4.
4. Corridor light connection part
Wall mounted slave unit6.
6. Corridor light
Memory unit 8.
Input / output unit 9.
Call push button10.
Hand push button handset

Claims (3)

From a hand-held push button slave unit consisting of an antenna, a transceiver unit, a CPU control unit, a memory unit, an input / output unit, and a call push button, and a wall mounted slave unit consisting of an antenna, a transceiver unit, a CPU control unit, and a corridor lamp connection unit The grip push button slave unit side is activated by electromotive force by electromagnetic induction without having a power source or a battery, and the information on the call push button is obtained by transmitting radio waves from the wall mounted slave unit side. A nurse call paging device that is transmitted by radio waves to the wall mounted child device. The wall mounted slave unit according to claim 1 periodically polls and transmits radio waves, reads the unique address of the grip push button slave unit and information of the call push button, When it is detected that the call has been pressed, a nurse call call slave device that notifies the call center to the nurse call parent device installed in the nurse center via a corridor lamp. A unique address is set in the memory unit of the grip push button slave unit according to claim 1 and 2, and an address to be called at the time of periodic polling from the wall mounted slave unit and the grip push button slave unit A nurse call caller characterized in that the gripping push button slave unit responds by sending the unique address and the information of the call push button to the wall mounted slave unit by radio wave only when the unique address held by Machine.