CN2352936Y

CN2352936Y - Sectional weighing apparatus used for hospital bed

Info

Publication number: CN2352936Y
Application number: CN 98203279
Authority: CN
Inventors: 何铁春; 项冀平; 段俊法
Original assignee: General Hospital Of Beijing Military Command P L A
Current assignee: General Hospital Of Beijing Military Command P L A
Priority date: 1998-04-14
Filing date: 1998-04-14
Publication date: 1999-12-08
Anticipated expiration: 2008-04-14

Abstract

The utility model provides a combined weighing device for sickbeds, which makes a patient weighed without leaving a sickbed and can provide effective medical care data for a plurality of patients. The utility model uses four force cells to support four bed legs; the output ends of the force cells are connected into a display instrument by cables; a display board which is composed of digital tubes displays the weighing result; the utility model has a zero setting button for erasing the weight of an object which is weighed before. The utility model can be matched with a jack for use or support other parts of a bed frame.

Description

The sick bed combination metering apparatus

The utility model relates to field of medical, refers to a kind of sick bed combination metering apparatus especially.

There is the needs of patients of multiple disease often to measure body weight, but often because the state of an illness is heavier or infusing etc., cause the measurement of body weight to become a trouble even difficult thing, best bet is that patient just can be weighed on one's sick bed, and is existing a kind of multifunctional hospital bed at present, is provided with fixing weighing device at its body frame, the patient is weighed together with bed, but this sick bed costs an arm and a leg, and maneuverability, bad adaptability, and general hospital can not generally be equipped with.

The purpose of this utility model is to provide a kind of combination metering apparatus that is applicable to multiple sick bed, and the patient need not to leave sick bed, can weigh.

The technical solution of the utility model is: this device is as weight sensing element with force cell, comprise sick bed, force cell and display instrument, four footposts of sick bed are placed four independently on the force cell, the output terminal of four force cells is inserted by cable on the plug connector of display instrument, and display board shows the check weighing result.The framework that force cell has shape elasticity steel to make; its upper surface near an end of opening have one with the hinged force plate of hemisphere jut; the other end of upper surface posts the strain resistor electric bridge that becomes bridge-type to connect by 4 identical resistance of resistance; force cell has the housing protection outward; its framework bottom is inlaid with cable connector; peg graft with the cable connector on the display instrument, the display board of display instrument can show weighing results.

Superiority of the present utility model is: need only four force cell plugs under the footpost of arbitrary form ordinary hospital bed, can weigh, as long as a ward has a cover weight-measuring device, just can weigh to several patients, compared with only being fit to the multifunctional hospital bed of patient's special use, its cost obviously reduces, particularly the utility model can be removed the zero-setting operation of " preceding heavy " and compensation four angular displacement automatically, to realize that the patient need not leave sick bed and can weigh, also can monitor the interior input quantity of section sometime easily, the output value, the blood draw amount, amount of bleeding during massive haemorrhage, even diaphoretic volume what.Can in multiple treatment of diseases nursing, provide active data for medical and pathological study.The utility model is simple in structure to be the portable combined structure, is easy to dismounting and motor-driven use.

Now in conjunction with the accompanying drawings the structure of embodiment of the present utility model is done an explanation:

Fig. 1 is a perspective view of the present utility model;

Fig. 2 is force cell of the present utility model and display instrument connection diagram;

Fig. 3 is the cut-away view of force cell of the present utility model:

Fig. 4 is the electrical schematic diagram of Fig. 3;

Fig. 5 is a workflow schematic diagram of the present utility model;

Fig. 6 is a display instrument schematic appearance of the present utility model.

As shown in Figure 1, the utility model is made up of sick bed 1, four force cells 2 and display instrument 3, four footposts of arbitrary form sick bed 1 directly can be placed on four force cells 2, present embodiment is represented is to utilize lifting jack 4 to support the suitable position of sick beds and place on the force cell 2, each force cell 2 has cable to be connected with display instrument 3, and the check weighing result can directly show on display board 31.

Fig. 2 is display instrument 3 and the synoptic diagram that a force cell 2 is connected, and has been actually four force cells 2, has only drawn one among Fig. 2, in the behind of display instrument 3 cable is arranged, and one the tunnel connects the 220V AC power, and another Lu Yusi force cell 2 connects.

As shown in Figure 3; the framework that force cell 2 has a shape Elastic Steel profit to make; its upper surface near an end of opening have one with the hinged backing plate of hemisphere jut; it is the force plate 21 of force cell 2; when weighing object under test is placed on the force plate 21, the other end of upper surface posts strain resistor electric bridge 22, and housing 23 protections are arranged outside the force cell 2; force cell 2 framework bottoms are inlaid with cable connector 24, be used for display instrument 3 on cable connector 36 peg graft.

Fig. 4 is the electrical schematic diagram of strain resistor electric bridge 22 in the force cell 2, system becomes bridge-type to connect by 4 ga(u)ge line R1, R2, R3, R4, the resistance of R1, R2, R3, R4 is identical, nominal value is 300 Ω, external 6VDC voltage by display instrument 3 power supplies, its output voltage is directly proportional with the strain of force cell 2, just is directly proportional with weight of object placed on it.

Fig. 5 is a workflow schematic diagram of the present utility model, on behalf of object, external force F place power on the force plate 21, external force F causes the strain △ ε of force cell 2, cause strain resistor to change △ R, when the electric bridge input end applies Vin=6VDC, then △ Uout is arranged at the electric bridge output terminal, through amplifying circuit △ and adding circuit ∑, after the measuring-signal amplification and summation and compensation position error with 4 force cells 2, directly demonstration of weigh then can be printed measurement result as connecting printer P.

Fig. 6 is the schematic appearance of display instrument 3, and circuit board is contained in its inside with giving force cell 2 direct current power source supplying power, and display board 31 is arranged on the panel, for charactron is formed; Power switch 32, zero setting button 33, print button 34 and range button 35 are arranged on the panel; When measuring, can as required weighing state at that time be changed to zero, make the difference of twice measurement (as the transfusion front and back) that in measuring process, can remove " preceding heavy " easily or make body weight directly show.Rear panel has printer interface and cable connector 36.

Claims

1. sick bed combination metering apparatus, comprise sick bed (1), force cell (2) and display instrument (3), it is characterized in that: four footposts of sick bed (1) are placed on four force cells (2), the framework that force cell (2) has shape elasticity steel to make, its upper surface near an end of opening have one with the hinged force plate (21) of hemisphere jut, the other end of upper surface posts the strain resistor electric bridge (22) that becomes bridge-type to connect into by 4 identical resistance of resistance, there is housing (23) force cell (2) outside, its underpart is inlaid with the output terminal of cable connector (24), located by the plug connector (36) that cable inserts in the display instrument (3), display board (31) shows the check weighing result.

2. sick bed combination metering apparatus according to claim 1, it is characterized in that: sick bed (1) is the arbitrary form sick bed.