CN1119177C - Automatic balance-type type medical dripping alarm - Google Patents

Abstract

The present invention relates to an automatic balance-type type medical liquid dropping alarm. A balance cross beam is arranged at the top of a supporting infusion rod; an infusion bottle is hung at one end of the balance cross beam, and a weight is hung at the other end of the balance cross beam; an electric bell switch is correspondingly arranged below the weight. When the infusion bottle is heavier than the weight, a balance stays horizontal because of the action of a limited block; when the infusion bottle is lighter than the weight, the balance tilts, the weight falls down, and the electric bell switch is triggered so as to give an alarm. The principles of gravity and levers are ingeniously used in the present invention, and simple component structure is used for realizing an automatic alarm. The present invention also has the advantages of freedom from the limitation of the variety of infusion liquids, no influence on liquid medicine, reliable work, and effective guarantee of patients' treatment and rest.

Description

Automatic balance-type type medical dripping alarm

The present invention relates to a kind of medical drip autoalarm, relate in particular to a kind of automatic balance-type type medical dripping alarm that utilizes gravity and lever principle, belong to medical apparatus and instruments or automatic control technology field.

People usually need dropping liquid (claiming to beat garter, transfusion again) when sick.A major issue is during dropping liquid: when liquid in the infusion bottle drips off soon, send for a nurse to pull out pin or continuous bottle, do not note slightly, then blood may instead flow back to the dropping liquid tubule from blood vessel, if continuous at this moment bottle then has the air admission dropper, be difficult to get rid of, if allow the air admission blood vessel because of carelessness, will produce very adverse influence to human body.For this reason, liquid is when there is not much left in bottle, and patient will observe at any time, some heavy patient's lethargy, and then the guest invited to a dinner party (family members or nurse) by the service patient does.If can invent a kind of autoalarm, then the hypopathia people can feel at ease to have a rest when dropping liquid, and service heavy patient's guest invited to a dinner party then can do other thing.

In the prior art,, a kind of level control method is arranged at so typical level control problem, the head of two pins during with dropping liquid (a logical atmosphere, a logical blood vessel) links to each other with insulant, and backshank connects lead, connect power supply and trigger, form the low-voltage safety loop.Since the dropping liquid conduction, link tester when liquid level is higher than syringe needle, and when liquid level was lower than syringe needle, because of the head insulation that two pins link to each other, circuit disconnected, and triggered electric bell by relay and reported to the police.Though this method is simple, but still have some deficits, because the medicinal liquid in the drop bottle is in "on" position always, might influence the property of medicine, during simultaneously owing to dropping liquid, the insulant of two needle section soaks for a long time, may also can conduct electricity because of soaking into some liquid when liquid level is lower than syringe needle, makes circuit unreliable.In addition, favourable alarm with the photoelectric sensor principle, a kind of automatic infusion monitor device of being introduced as Chinese patent ZL98224927.6, with the photoelectrical coupler of the displacement sheet in the liquid level controller in the control circuit, when liquid level changes in the infusion bottle, the displacement sheet changes with respect to the position of photoelectrical coupler thereupon, during to a certain setting value, and the trigger control circuit warning.This alarm work is reliable, but the structure more complicated also needs supporting control circuit.

The objective of the invention is to above-mentioned deficiency at prior art, design a kind of simple in structure, reliable operation, the medical drip autoalarm of applicable various dropping liquid kinds solves patient and nurse's trouble, ensures patient's treatment and rest.

For realizing such purpose, technical scheme of the present invention adopts the balance-type type structure, utilizes gravity and lever principle, adopts the electric bell that market is on sale and the ward is ready-made to make alarm.Put a balance on the transfusion strut, the balance two ends hang infusion bottle and counterweight respectively, transfer bell switch at counterweight, when dropping liquid will be finished, and the balance disequilibrium, counterweight falls, and triggers bell switch, realizes warning function.Concrete structure of the present invention is: have a sky plano-convex to split on transfusion strut top; split with the intermediary day plano-concave of balance crossbeam and to be harmonious; one end of balance crossbeam is hung infusion bottle; the other end is hung counterweight; corresponding below the counterweight have a bell switch; counterweight and bell switch all are placed in the switch counterweight containment vessel, and switch counterweight containment vessel is fixed on the strut with cross support arm.Split at the sky plano-concave and to split with a day plano-convex that the place that is harmonious is other places a limited block, topple over when overweighting counterweight with the restriction infusion bottle.The balance crossbeam is reserved an end fraction and is hung outside the infusion bottle, and remainder all is placed in the crossbeam containment vessel that loam cake arranged.

During use, an end of balance crossbeam hangs up infusion bottle, and at this moment, infusion bottle is heavier than counterweight, but because limited block arranged, balance keeps level, and when liquid drips off substantially, then infusion bottle is lighter than counterweight, day flat dip, and counterweight drops on the bell switch, realizes reporting to the police.

Use for ease of hospital, used counterweight can provide a series in advance, by the medical worker according to residual liquor in the liquid bottle for how many times this signal determine selecting for use of counterweight.

Below in conjunction with accompanying drawing technical scheme of the present invention is further described.

Fig. 1 is a structural representation of the present invention.

As shown in the figure; top at transfusion strut 6 has a sky plano-convex to split 5; it plano-convex is split 5 and is split 3 and be harmonious with 1 intermediary day plano-concave of balance crossbeam; one end of balance crossbeam 1 is used for hanging infusion bottle; the other end hangs with counterweight 8, and below counterweight 8, corresponding have a bell switch 10; counterweight 8 all is placed in the switch counterweight containment vessel 9 with bell switch 10, and switch counterweight containment vessel 9 usefulness cross support arms 11 are fixed on the strut 6.Split 3 at the sky plano-concave and split 5 next doors, place that are harmonious with a day plano-convex and place a limited block 4, topple over when overweighting counterweight with the restriction infusion bottle.Balance crossbeam 1 is reserved an end fraction and is hung outside the infusion bottle, and remainder all is placed in the crossbeam containment vessel 7 that loam cake 2 arranged.

When infusion bottle was heavier than counterweight 8, because the effect of limited block 4, balance kept level, when liquid nearly drips off, and when infusion bottle is lighter than counterweight 8, day flat dip, counterweight 8 drops on the bell switch 10, realizes reporting to the police.

The present invention has utilized gravity and lever principle dexterously, adopt simple modular construction, realize reporting to the police automatically, go for as various transfusion liquids such as glucose, normal saline, blood plasma, medicinal liquid there are not any influences such as photochemistry, electrochemistry, reliable operation can be removed patient or guest invited to a dinner party's psychological burden, ensures patient's treatment and rest.

Claims (1)

1; a kind of automatic balance-type type medical dripping alarm; the sky plano-convex at strut (6) top of it is characterized in that infusing is split the intermediary day plano-concave in (5) and balance crossbeam (1) and is split (3) and be harmonious; one end of balance crossbeam (1) is used for hanging infusion bottle; the other end hangs with counterweight (8); counterweight (8) and the bell switch (10) corresponding with it all are placed in the switch counterweight containment vessel (9); switch counterweight containment vessel (9) is fixed on the strut (6) with cross support arm (11); plano-concave is split (3) and a day plano-convex and is split (5) the other limited block (4) of placing in place that is harmonious in the sky; balance crossbeam (1) is reserved an end fraction and is hung outside the infusion bottle, and remainder all is placed in the crossbeam containment vessel (7) of loam cake (2).

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