JP3586773B2 - Bed fall warning device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention has been developed to report and warn patients to prevent fallout from beds of patients and elderly people after surgery in hospitals, welfare facilities, and home care that have been debilitated, and to abolish patient suppression campaigns nationwide. there is a current situation is not only Megumegu monitoring strengthening by the nurse without proper centralized management equipment, base head fall prediction technology related to an alarm device for the measures.
[0002]
[Prior art]
As aging progresses year by year, there is a shortage of nurses at hospitals and welfare facilities, etc. At present, there is no other method except for patrols in hospitals and welfare facilities due to major problems. Especially in the night shift, it is easy to overlook bed falling accidents due to the small number of people, and there are actually increasing accidents. Therefore, although it is not a bed fall accident prevention method, use of an indoor surveillance camera or the like has been found as a method for detecting dementia wandering, but the use is currently banned due to privacy violation. As other methods, mat-type sensors and sensor sheets for getting out of bed have been commercialized, but in these methods, patients can be detected after falling off the bed, or they may pass by avoiding the mat, especially in hospitals etc. Is an unsanitary product because it is in contact with the patient, and as one of the measures to prevent infectious diseases, exercises that do not place objects (mats, etc.) on the floor etc. are also being developed, especially preventing falling beds accidents It is difficult to apply to the means.
Further, as a prior application, there is a “wandering detection means in bed” of Patent Publication No. H07-034793, which is a device dedicated to dementia wandering by an infrared sensor system made for a special bed.
This device is equipped with a transmitter and a receiver at both ends and upper part of the special bed fence, and is detected when a patient with dementia wanders over the fence on which the sensor is installed.The detection area is too close to the patient because the detection area is too close to the patient. There is also concern about the occurrence of malfunctions due to the body, clothes, futons, sheets, curtains, etc. associated with the patient turning over and behaviour, and is not yet found in the market. At present, there is still a need for measures to prevent beds from falling, such as strengthening the patrol monitoring system by nurses.
[0003]
[Problems to be solved by the invention]
However, it is difficult to constantly perform patrol monitoring due to the shortage of nurses and the like, and methods for centralized monitoring have been studied. However, appropriate facilities and technologies have not yet been developed. Therefore, the following items need to be solved as problems to be solved by the present invention.
1. It can be applied to a wide variety of beds by manufacturer and model.
2. Be able to respond to the behaviors and situations of many patients.
3. A sensor device is easily attached to and detached from the bed.
4. The sensor is designed to be lightweight and compact so that it is not noticeable in hospital rooms.
5. To be able to share with existing pushbutton switches.
6. Output to the existing nurse call line.
7. The device should be non-contact type with patients, bedding, hospital room floor, etc. from the viewpoint of infection control and health and safety.
To solve the above problems, we will develop a device to prevent bed fall accidents.
[0004]
[Means for Solving the Problems]
A bed fall prediction alarm device according to the present invention is a bed fall prediction alarm device for notifying a patient or an elderly person of falling down from a bed in order to prevent the accident, and the bed frame includes a bed frame sandwiching jig and a fastening device. A control box attached via bolts, an optical sensor diffuse reflection type mounted at the tip, a bendable flexible pipe disposed at the other end above the control box, and disposed in the control box; The optical sensor cable of the optical sensor diffuse reflection type passing through the flexible pipe is connected, and a signal processing circuit whose output is connected in parallel to a push button switch for a nurse call is provided. The arranged control box and the bed frame sandwiching jig have an integrated structure, and can be lowered from the bed. The push button that detects the body or clothing of the patient or elderly person to be detected by the light reflected by the light sensor diffuse reflection type illumination, and connects the contact signals in parallel by a signal processing circuit in the control box. Connect to the switch's nurse call line and output .
Thus, the bed drop accident can be prevented beforehand by the nurse to stop and support the patient at the initial stage when the patient tries to get out of the bed.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments embodying the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. FIG. 1 shows a configuration of a bed fall prediction alarm device according to an embodiment of the present invention.
FIG. 2 shows an embodiment of the bed fall prediction alarm device of the present invention.
FIG. 3 shows a block diagram of a control circuit of the alarm device for predicting a bed drop according to the present invention.
FIG. 4 shows a configuration of the bed fall prediction alarm device of the present invention in which the optical sensor unit main body and the control box main body are separated.
FIG. 5 shows an embodiment of the bed fall prediction alarm device of the present invention.
FIG. 6 shows an application example of an application circuit system of the bed fall prediction alarm device, in which an output signal can be input in another room through an AC power supply line and output to an alarm / light display device. Commercially available products are incorporated and used as components used in this circuit.
FIG. 7 is an application circuit system of a bed fall prediction alarm device, which shows an application example using a weak radio wave which can receive an alarm signal and receive an alarm communication in another room as an output signal by a wireless transmission output method. Commercial products are incorporated in the radio section of the circuit.
[0006]
【Example】
Details of each of the above figures will be described.
FIG. 1 shows a configuration diagram of a bed fall prediction alarm device. The tip of the flexible pipe 2, the light sensor diffuse reflective 1 by mounting by arranging the other end of the flexible pipe 2 to the control box body 6 upper scissors also bed frame to the control box body 6 upper mounting jig unit 4 and fastening bolts 5 are provided.
The control box main body 6 is provided with a power switch 7 with an indicator light on the front thereof. A signal processing circuit 8 is incorporated in the control box body 6. The optical sensor cable 3 of the optical sensor diffuse reflection type 1 is connected to an input signal circuit 31 in the signal processing circuit 8 of the control box body 6 through the flexible pipe 2.
From the control box 6, a control cable 10 is connected to a power cable of the AC adapter 9, an output signal circuit 32 and a push button switch 12 through a relay box 13.
The output signal circuit 32 is connected in parallel with the push button switch 12, and is connected to the existing nurse center through the cable 11 with the nurse call connector of the nurse call unit 14.
Figure 2 is mounted in the embodiment indicates a bed frame mounting jig portion 4 and only the bolt 5 fastening the control box body 6 in the lower part of the bed frame 18 of the bed 17 of the bed fall prediction alarm device, the flexible pipe The irradiation direction of the optical sensor diffuse reflection type 1 attached to the tip of the body 2 is directed to a position where the patient can get off the bed 17 and is slightly away from the bed fence 20 to irradiate the body and clothes without receiving malfunction. The flexible pipe 2 is bent so that the position and adjustment are made. When the patient tries to get out of the bed 17 with the power switch 7 with indicator light turned on, when the body and clothes enter the irradiation range of the optical sensor diffuse reflection type 1, the detection signal by the reflected light is transmitted to the signal processing circuit 8. enters the input signal circuit 31, the contact signal is Tsu Na as reporting and alarm nurse station enters through nurse call connector 15 from the nurse call connector cable 11 via the output signal circuit 32. At that point, the nurse goes to the patient and stops and supports the patient's movement, thereby preventing a fall accident from the bed.
The push button switch 12 is also connected in parallel, so that a nurse call can be performed by a normal push button switch.
FIG. 3 shows an electric circuit of the bed fall prediction alarm device as a circuit configuration block diagram. The detection signal of the optical sensor diffuse reflection type 1 is connected in parallel with the push button switch 12 and the relay box 13 through the signal processing circuit 8, and the contact signal output from the nurse call connector 15 to the nurse center through the cable 11 with the nurse call connector. Can report and alert.
FIG optical sensor disposed mounting jig 22 sandwiching bed frame to the other end of the flexible pipe 2 by mounting the light sensor diffuse reflective 1 to the distal end of the flexible pipe 2 for beds fall prediction alarm device where shown in 4 part shows the bed fall prediction alarm device, characterized in that the separately isolated structured to control box body 6 and Nitsu which is disposed a mounting jig unit 4 to the upper pinch bed frame body 36.
Bed fall prediction alarm system where FIG. 5 shows an embodiment, the control box body 6 attached to the bed frame 18 by sandwiching the optical sensor body 36 at the top of the headboard 34 or foot board 35 By mounting the optical sensor unit 36 under the bed frame 18, the optical sensor unit main body 36 can be mounted in a place with a narrow gap. 36 shows a bed fall prediction alarm device characterized in that it can be mounted at an optimum position where the initial position of the patient can be detected by changing the mounting position / direction of 36.
FIG. 6 shows an arrangement in which an AC power supply line signal transmission circuit 23 is provided in the signal processing circuit 8 in the control box main body 6 and inserted into an AC power supply outlet 25 so that a detection signal is transmitted through the AC power supply line and is transmitted to another room. An AC power line signal input alarm device 28 can be issued through an AC power outlet 26 to issue an alarm.
In FIG. 7, a wireless transmission circuit 29 is provided in the output signal circuit 32 of the signal processing circuit 8 of the control box body 6, and the detection signal is reported / warned to the wireless reception / warning device 30. Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and changes in conditions that do not depart from the gist of the present invention, such as changing a flexible pipe to a telescopic antenna pipe or the like. Are all within the scope of the present invention.
The mounting jig bed frame scissors mounting jig portion 4 of the control box body 6 without departing from the gist is not limited only to the mounting jig, as shown in the is a scope of the present invention.
[0007]
【The invention's effect】
According to the present invention, when a patient or an elderly person after a fragile operation tries to get out of bed, the patient's body or clothes are detected as soon as possible by a light sensor diffuse reflection type and notified to a nurse center and an alarm is issued, so that a nurse is required. The movement to go to the patient and get out of the bed is stopped and supported, thereby preventing the bed falling accident.
The present invention is a device for supporting a nurse to prevent an accident before it occurs, and an existing nurse call system is provided by a parallel connection method of a push button switch and an output signal of an optical sensor diffuse reflection type bed fall prediction alarm device. Since the present invention can be used only by adding the present invention without remodeling, an inexpensive bed fall prediction alarm system can be provided. In recent years, the number of lawsuits has been increasing with the increase in falls and fall accidents due to the elimination of deterrence at hospitals and facilities in the age of aging.
However, many hospital facilities are facing difficult situations due to the limited number of people and the limited ability to enhance patrol surveillance. In addition, the present invention can be sufficiently used as a tool for supporting patients and nurses from the viewpoint of safety and hygiene including the problem of infectious diseases.
For the above reasons, the bed fall prediction alarm device produces a great effect.
[Brief description of the drawings]
FIG. 1 is an explanatory view of a bed fall prediction alarm device.
FIG. 2 shows an embodiment of a bed fall prediction alarm device.
FIG. 3 shows a circuit block diagram of a bed fall prediction alarm device.
FIG. 4 is an explanatory diagram of a bed fall prediction alarm device.
FIG. 5 shows an embodiment of a bed fall prediction alarm device.
FIG. 6 shows an embodiment of an AC power line signal type / bed fall prediction alarm device.
FIG. 7 shows an embodiment of a wireless signal type bed fall prediction alarm device.
[Explanation of symbols]
1: Light sensor diffuse reflective, 2: flexible pipe, 3: optical sensor cable, 4: bed frame scissors mounting jig unit, 5: tighten bolts, 6: control box body, 7: power switch-out with indicator , 8: signal processing circuit, 9: AC adapter (AC / DC), 10: control cable, 11: cable with nurse call connector, 12: push button switch, 13: relay box, 14: nurse call unit, 15: nurse call connector, 16: power outlet, 17: bed, 18: bed frame, 19: bed posts, 20: Bed rail, 21: flexible pipe fixing portion, 22: bed frame scissors mounting jig, 23: AC power line signal transmission Circuit, 24: AC power line output signal power cord, 25: AC power outlet, 26: AC power outlet G, 27: AC power line input signal power cord, 28: AC power line signal input alarm, 29: wireless transmission circuit, 30: wireless reception alarm, 31: input signal circuit, 32: output signal circuit, 34: headboard, 35: foot board, 36: optical sensor body

Claims (2)

A bed fall prediction alarm device that notifies a patient or an elderly person to prevent an accident of falling off the bed,
A control box attached to the bed frame via a bed frame sandwiching mounting jig and a fastening bolt;
A bendable flexible pipe with an optical sensor diffuse reflection type mounted at the tip and the other end disposed above the control box,
A signal processing circuit arranged in the control box, connected to the optical sensor diffuse reflection type optical sensor cable passing through the flexible pipe, and having an output connected in parallel to a nurse call push button switch. And
The control box in which the other end of the flexible pipe is disposed and the bed frame sandwiching mounting jig have an integrated structure,
The body or clothes of the patient or the elderly trying to get off the bed is detected by the light reflected by the diffuse reflection type light sensor, and the contact signals are connected in parallel by a signal processing circuit in the control box. A bed fall prediction alarm device, which outputs the signal by connecting to a nurse call line of the push button switch . The bed fall prediction alarm device according to claim 1, wherein a detection signal based on the reflected light that has detected the body or clothing of the patient or the elderly is wirelessly received from a wireless transmission circuit disposed in an output signal circuit of the signal processing circuit. A bed fall prediction alarm device, which notifies an alarm device.

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