CN101313877A - Intellectual nursing bed with anti-drop function - Google Patents

Abstract

The invention relates to an intelligent nursing bed with fall-proof function, comprising an automatic lifting guardrail, a bedstead and a bedplate. The invention is characterized in that the intelligent nursing bed also comprises four weight sensors, two sets of infrared ray detecting devices, a data acquisition module, a computer processing system and an alarm system, wherein, the four weight sensors are respectively arranged at four corners of the bedstead; the rigid bedplate is arranged on the sensors; the two sets of infrared ray detecting devices are respectively arranged on a front headboard and a back headboard; the four weight sensors and the two sets of infrared ray detecting devices are respectively connected with the data acquisition module which is connected with the computer processing system; and a signal output end of the computer processing system is connected to the alarm system and an automatic lifting guardrail drive unit. The intelligent nursing bed can effectively prevent the falling danger of the patient, lighten the burden of medical care personnel, and improve the current condition of the lack of nursing beds.

Description

Have the intellectual nursing bed of anti-drop function

Technical field

The present invention relates to a kind of intellectual nursing bedly, particularly a kind ofly be directed to handicapped personnel or amentia patient and use, to guarantee the nursing bed of its bed safety.

Background technology

In the home for the aged or rehabilitation center, many old peoples and amentia personnel are owing to lack self-control, leave the bed without authorization under nursing staff's condition of unknown or weigh down bed, and this may cause because of motor control ability grave danger such as cause falling.All the time, people wish to design a kind of can prevent patient leave the bed without authorization or fall intellectual nursing bed, but do not find a kind of ideal method as yet.The research history of nursing bed is very long, but just concentrating on exploitation can change patient's function of sprawl in bed mostly, or how research realizes physiological parameter monitoring and patient information transmission; Also there are many nursing beds to focus on functions such as realization is stood up, daily life is auxiliary.In the patent of the 230 multinomial nursing related beds that China declares, do not find to have the nursing bed of the protection of falling as yet.Have manufacturer to develop the mattress of anti-fall bed abroad, patient lies on the mattress under the normal condition, and when patient stands up and when breaking away from mattress, just sends alarm signal, but patient there is no from the bed tendency iff sitting up, and it also may send the false alarm signal.What also have places bedmattress with alarm on the floor of bedside, the warning of after patient steps on mattress, posting a letter, but the bob bed has taken place in this moment patient, some is late.Therefore research and develop a kind of can be in time, monitor patients weighs down the novel intelligent nursing bed of bed automatically reliably, and is significant to the safety and the quality of the rehabilitation nursing that improves old people, the disabled.

Summary of the invention

The present invention will provide a kind of the intellectual nursing bed of anti-drop function that have, this intellectual nursing bed object center of gravity measuring principle that utilizes, monitor patient's situation in real time, and be aided with the infrared ray autoalarm, can weigh down to patient more timely, accurately that situation such as bed gives to report to the police, prevention, improve its intelligent degree.

In order to achieve the above object, technical scheme of the present invention is: a kind of have the intellectual nursing bed of anti-drop function, comprise bedstead, bed head frame, bed board, also comprise automatic lifting guardrail, four load sensors, two cover infrared ray sniffers, data acquisition module, computer processing system, warning system, wherein, four load sensors place four jiaos of bedsteads respectively, place the rigidity bed board on the pick off, and two cover infrared ray sniffers are installed in respectively on the bed head frame of front and back; Four load sensors are connected data acquisition module respectively with two cover infrared ray sniffers, and data acquisition module links to each other with computer processing system, and the computer processing system signal output part connects warning system and automatic lifting guardrail driving device.

Four load sensors record patient's each support reaction and infra-red detection device in bed respectively and detect patient's state that rises and retires in bed, and by data acquisition module with four sensing datas and infra-red detection signal input computer processing system, and calculate and judge patient's position of centre of gravity and state in bed, if patient's then warning system in the hole is reported to the police, rise guardrail simultaneously automatically.

Substantive distinguishing features and remarkable advantage that the present invention has are: four load sensors of the present invention record patient's each support reaction and infra-red detection device in bed respectively and detect patient's state that rises and retires in bed, and by data acquisition module with four sensing datas and infra-red detection signal input computer processing system, thereby calculate and judge patient's position of centre of gravity and state in bed, if patient's then warning system in the hole is reported to the police, can rise guardrail simultaneously automatically and guarantee patient safety.The present invention can prevent effectively that patient from weighing down the danger of bed, alleviates medical personnel's burden, can remedy the present situation of nursing bed shortage to a certain extent.

Description of drawings

Fig. 1 is center of gravity measuring principle figure;

Fig. 2 is a structural representation of the present invention;

Fig. 3 is intellectual nursing bed monitoring programme flow chart.

The specific embodiment

The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.

As shown in Figure 2, of the present invention have the intellectual nursing bed of anti-drop function, comprise automatic lifting guardrail 3, bedstead 4, bed head frame 9, bed board 5, four load sensors 1, two cover infrared ray sniffers 2, data acquisition module 6, computer processing system 7, warning system 8, wherein, four load sensors 1 place 4 four jiaos of bedsteads respectively, place rigidity bed board 5 on the pick off 1, and two cover infrared ray sniffers 2 are installed in respectively on two bed head frames 9; Four load sensors 1 are connected data acquisition module 6 respectively with two cover infrared ray sniffers 2, and data acquisition module 6 links to each other with computer processing system 7, and computer processing system 7 signal output parts connect warning system 8 and automatic lifting guardrail 3 driving devices.

Four load sensors 1 record patient's each support reaction in bed respectively, infra-red detection device 2 detects patient's state that rises and retires in bed, by data acquisition module 6 each sensing data and infra-red detection signal are imported computer processing system 7, and calculate and judge patient's position of centre of gravity and state in bed, if patient's then warning system 8 in the hole is reported to the police, can rise guardrail 3 simultaneously automatically and guarantee patient safety.

Design of the present invention mainly is based on the static weighing technology, by the equilibrium relation equilibrium establishment Equation for Calculating of power and moment between support reaction and the gravity, determines position of centre of gravity (Fig. 1).

If patient lies on the nursing bed, its weight is P, and center of gravity is that four load sensors of x. place on four angle points of nursing bed from the position of left side edge of bed (overlapping with the y axle among Fig. 1).Utilize secondary weighing, remove the bed board tare weight after, gravity P and four support reaction R ₁, R ₂, R ₃, R ₄Form space parallel power system, by equilibrium condition:

$\left\{\begin{array}{cc}\mathrm{\ΣZ}=0& R_1+R_2+R_3+R_4-P=0\\ \mathrm{\Σ}{m}_y=0& P{x}_0-R_{1}a-R_{3}a=0\end{array}\right.$

In the formula: P---patient weight

R ₁, R ₂, R ₃, R ₄---the pick off support reaction

A---nursing bed width

x ₀---patient's barycentric coodinates

Get patient's barycentric coodinates: $x_0=\frac{(R_1+R_3)a}{(R_1+R_2+R_3+R_4)}$ x ₀∈[0，a]

The restriction of side bedstead before and after considering, bed, the y of center of gravity can not take place to weigh down along the y direction in patient ₀Coordinate needn't be measured.For guaranteeing safety, stipulate a safety zone [x ₁, x ₂], as position of centre of gravity x ₀Satisfy x ₁＜x ₀＜x ₂(0＜x wherein ₁＜x ₂＜a) time, patient is in the place of safety.Otherwise be in non-place of safety, and corresponding information input computer processing system.

Work process of the present invention is seen Fig. 3.

The present invention can prevent effectively that patient from weighing down the danger of bed, alleviates medical personnel's burden, can alleviate the present situation of nursing bed shortage to a certain extent.Also be in the trial period at present, technology content and added value of product are higher, and good extensibility and exploitability are arranged, and several kinds of medical equipment can use supporting with it.Research from now on will concentrate on and how further improve system coordination and motility, expand with cooperating of its supporting medical facilities etc.

Claims (2)

1. one kind has the intellectual nursing bed of anti-drop function, comprise bedstead (4), bed board (5), bed head frame (9), also comprise two automatic lifting guardrails (3), four load sensors (1), two cover infrared ray sniffers (2), data acquisition module (6), computer processing system (7), warning system (8), it is characterized in that described four load sensors (1) place (4) four jiaos of bedsteads respectively, described pick off (1) is gone up and is placed rigidity bed board (5), and two cover infrared ray sniffers (2) are installed in respectively on the forward and backward bed head frame (9); Described four load sensors (1) are connected data acquisition module (6) respectively with two cover infrared ray sniffers (2), and data acquisition module (6) links to each other with computer processing system (7), and computer processing system (7) signal output part connects warning system (8) and automatic lifting guardrail (3) driving device.

2. according to claim 1 have the intellectual nursing bed of anti-drop function, it is characterized in that described four load sensors (1) record patient's each support reaction and described infra-red detection device (2) in bed respectively and detect patient's state that rises and retires in bed, and pass through data acquisition module (6) with four sensing datas and infra-red detection signal input computer processing system (7), and calculate and judge patient's position of centre of gravity and state in bed, if patient's then warning system in the hole (8) is reported to the police, rise guardrail (3) simultaneously automatically.

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