Two transfusion monitor
Technical field
The present invention relates to field of medical products, especially a kind of drop monitoring instrument.
Background technology
People need to have an intravenous drip when sick being in hospital usually, if drop drips off and patient does not find, consequence is very serious, because drop connects blood vessel, note less than after making medicinal liquid drip off completely, a just surplus air in tube for transfusion pipe.Because the blood pressure of people is higher than the atmospheric pressure in pipe, blood will be made to back in tube for transfusion, be even raised in transfusion bottle, abnormally dangerous.If dose is few, one bottle just passable, and patient oneself just can supervise, and nurse also can drip off by Timeliness coverage medicinal liquid, processes in time.And the heavier needs of patient's state of an illness many bottles of medicines, when changing transfusion bottle, the plastic plug pin that nurse can pull up tube for transfusion inserts new transfusion bottle, but because transfusion bottle is many, patient is clear-headed or need to have a rest, nurse note sometimes less than, generally family members just must be had to nurse, to notify that nurse changes transfusion bottle in time.
But sometimes continuous seven or eight bottles even more, the interval time between two bottles is very long, if be the sleeping at night time again, family members probably fall asleep, be difficult to ensure nurse family members' Timeliness coverage medicinal liquid drip off and cause danger, even entail dangers to patients ' lives safety.
Summary of the invention
The object of the present invention is to provide a kind of two transfusion monitor, can drip off by Timeliness coverage drop, notify the family members that nurse or nurse in time.
Technical scheme of the present invention is:
Two transfusion monitor, comprise left clasp, right clasp, central controller, audible-visual annunciator and power supply, described power supply is connected with left clasp, right clasp, audible-visual annunciator, central controller, described central controller and left clasp, right clasp control connection, described central controller is connected with audible-visual annunciator, described left clasp, the symmetrical shape of right clasp is also oppositely arranged, left clasp, right clasp is positioned at dropper both sides and is connected by bayonet unit, left clasp, the shape of right clasp medial surface is all suitable with the shape of dropper, a described left side, right clasp inner surface is evenly densely covered with light emission pipe and light receiver pipe simultaneously, light emission pipe and light receiver Guan Jun be arranged in parallel, a described left side, right clasp inner surface is equipped with demarcation line, light emission pipe and light receiver pipe lay respectively at marginal side, light receiver pipe and the light emission pipe position of the light emission pipe of left clasp and light receiver pipe and right clasp are corresponding, also comprise overhead bin, described central controller, audible-visual annunciator are arranged in overhead bin, and overhead bin is also provided with the electronic scale restatement for hanging transfusion bottle, and electronic scale restatement is connected with central controller controls.
Bayonet unit is arranged on top and the bottom of left and right clasp, comprise to be located on left clasp and right clasp corresponding can the buckle of buckle.
Bayonet unit is arranged on top and the bottom of left and right clasp, and it is hinged that rotating shaft is passed through in left clasp and junction, right clasp side, and opposite side junction is connected by buckle.
Described left clasp, right clasp internal side surface shape and dropper external surface shape are suitable.
The present invention, by using left and right clasp transmitting and receiving light, judges the level change of infusion set dropper, thus the change of Timeliness coverage tube for transfusion liquid in pipe, remind people to dispose in time, prevent injury patient caused because of no liquid in tube for transfusion.The present invention can be buckled on dropper, uses very convenient, and it is very accurate to detect, and significantly reduces the burden of attending family, family members can be had a rest, need not drip off by excessive worry medicinal liquid, avoid the injury brought because medicinal liquid drips off.
Even if some time liquor strength very large, light cannot penetrate the medicinal liquid below liquid level, but still can be recorded the situation change of liquid level by the change of monitoring top liquid level.
The present invention use simultaneously electronic weighing scale detect liquid in transfusion bottle number, when reaching preset weight numerical value, a bit of time alarm people can be shifted to an earlier date note in advance, automatically open the circuit of left clasp, right clasp simultaneously, make it in running order, need not be always in running order, save electric energy, remind in time after obtaining accurate result, two-step is reminded, security insurance more, also saves energy.Structure is very simple, very easy to use.
Adopt overhead bin, can place and lay power supply, central controller and audible-visual annunciator better, more reasonable structure, use more convenient, medical care precess and patient activity can not be affected.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the top view of dropper in Fig. 1, left clasp and right clasp;
Fig. 3 is the structural representation of left clasp;
Fig. 4 is that light is by there being light refraction principle schematic during liquid in dropper and dropper;
Fig. 5 is that light is by the light refraction principle schematic in dropper and dropper during no liquid;
Fig. 6 is the partial enlarged drawing of Fig. 5;
Detailed description of the invention
As shown in Figure 1, the present invention is stuck in the outside of Murphy's burette 1, comprise left clasp 2, right clasp 3, central controller 9, power supply, audible-visual annunciator 10, power supply is connected with left clasp 2, right clasp 3 and provides power supply for left clasp 2, right clasp 3, left clasp 2, right clasp 3 and central controller 9 control connection.Central controller 9 is connected with audible-visual annunciator simultaneously.Between left clasp 2, right clasp 3, observation window 11 is all left in both sides, makes people still can observe the change of liquid level.
As shown in Figure 2, left clasp 2 and right clasp 3 symmetrical shape, be provided with bayonet unit 6 at the two top and bottom, left clasp 2 and right clasp 3 snapped together.Bayonet unit 6 can be that left clasp 2 and right clasp 3 correspondence be equipped with can the buckle of buckle, also can be the side of left clasp 2 and right clasp 3 by rotating shaft hinged (being rotationally connected), opposite side is connected by buckle, can open fast.
As shown in Figure 3, left clasp 2 is the arc surface of 120 degree (angle can set according to actual needs), because the shape of needs and dropper 1 is coincide, dropper 1 is up big and down small, so the mid portion of left clasp 2 slopes inwardly, the medial surface of left clasp 2 is evenly densely covered with several miniature light emission pipe 4 and light receiver pipes 5, light emission pipe 4 and light receiver pipe 5 belong to prior art.Light emission pipe 4 for emission of light, the light that light receiver pipe 5 launches for receiving light emission pipe 4.Although the inner surface of left clasp 2 is arc, but the radiation direction that all light emission pipes 4 are launched is parallel, the receive direction of light receiver pipe 5 is also parallel simultaneously, so light emission pipe 4 and light receiver pipe 5 all be arranged in parallel, can not be along the circumferential direction arrange to center.
In a lateral direction, the center of left clasp 2 has demarcation line 31(to be often referred to centrage), light emission pipe 4 and light receiver pipe 5 lay respectively at the left and right sides of demarcation line 31.
Right clasp 3 is identical with left clasp 2, and the left and right of demarcation line 31 is also light emission pipe 4 and light receiver pipe 5 respectively.Like this when the two is mounted opposite, the light that the light emission pipe 4 that light receiver pipe 5 can receive opposite is just launched.Central controller 9 adopts PLC system to programme, and controls the transmitting of light emission pipe 4 and the Signal reception of light receiver pipe 5, and compares to it, judges.
Principle of the present invention:
According to physics principle, light is when oblique incidence, and the object density of process is different, and will reflect, the light in the object that density is large and normal angle are less than the angle of incident ray and normal.
As shown in Figure 4, dropper 1 is circular, and there is liquid its underpart, and top does not have liquid.If light A is through there being liquid part, then light along dropper 1 vertical cross-section by time, be oblique incidence, can through the tube wall 7 of dropper 1, then through liquid, then through tube wall 7, occurs three times and reflect.
As shown in Figure 5,6, if light B is through no liquid part, then only at tube wall 7 place, twice refraction occurs, and because tube wall density is the same, the angle of light is the same, only slightly towards certain distance that moves right.Will find through contrast, light A, light B, through after the tube wall 7 on opposite, have a range difference d at horizontal direction therebetween.
The present invention utilizes this difference to judge just, by certain string vertical or there is the multiple row light emission pipe 4 of appropriate intervals to open, certain row light receiver pipe 5 can only have the some light receiving tube 5 on the downside of liquid level 8 to receive signal, and the light receiver pipe 5 on the upside of liquid level 8 can not receive light signal, even if the dropper wall on the upside of liquid level 8 is attached with some liquid drop, the optical signal that part on the upside of this row light receiver pipe 5 receives is still mixed and disorderly and interrupted, can judge height and the level change of liquid level 8 equally.Different by the receiving position of light after the refraction of liquid level about 8 in comparison dropper 1, and then judge the change of liquid level 8, if the refracted ray position of the reception on the upside of liquid level 8 is different with the refracted ray position on the downside of liquid level 8, illustrate in dropper 1 have liquid, if the liquid level in dropper 1 starts to decline, then central controller 9 drives audible-visual annunciator 10 to send acousto-optic early warning, if decrease speed is very fast, then illustrate in dropper 1 and will drip off at once, need to close at once, then central controller drives audible-visual annunciator 10 to send another kind of acousto-optic early warning, remind family members and nurse's Immediate management.
Liquid in transfusion bottle inputs human body gradually, and its weight can constantly decline, and be substantially all adopt plastic bottle and be no longer vial at present, plastic bottle varies in size, but because of its bottle of wall thinner, therefore the weight of empty bottle is more or less the same.
In order to the situation that liquid in further Timeliness coverage transfusion bottle is little, timely replacing transfusion bottle, the present invention hangs with 13 on the hook hanging transfusion bottle, power supply, central controller 9 and audible-visual annunciator 10 are installed in overhead bin, also be provided with an electronic scale restatement 12, electronic scale restatement 12 lower end is provided with the suspension hook of free state, electronic scale restatement 12 and central controller 9 control connection, the weight amount sustained delivery of electronic scale restatement 12 is to central controller 9, and central controller 9 judges the number of liquid in transfusion bottle according to change in value.Central controller 9 presets a minimum weight value m according to the weight of conventional empty bottle, if find that the numerical value of weighing of electronic scale restatement 12 is close or equal minimum weight value m, then central controller 9 sends signal by audible-visual annunciator 10.Power supply, central controller 9 and audible-visual annunciator 10 are all fixed on electronic scale restatement 12,
Check for the ease of entourage, in transfusion bottle, remaining liq is more, also at bottle mouth position, when people have a grace time process, audible-visual annunciator 10 first sends the longer alerting signal of interruption, and this is remind first time, and alerting signal is the optical signal or acoustical signal that slowly flash; If remaining liq is little in transfusion bottle, even in dropper 1, liquid has flowed substantially, when process will be caused danger not in time, then sends the optical signal of stroboscopic or rapid acoustical signal, and this is that second time is reminded.Adopt twice prompting, double insurance, prevent fortuitous event from occurring.