CN203556010U - Intravenous infusion accurate automatic control device - Google Patents

Abstract

An intravenous infusion accurate automatic control device comprises a bracket, a weight sensor and a microprocessor are installed on the upper portion of the bracket, a hanging hook for hanging a liquid bottle or a liquid bag is arranged at the lower end of the weight sensor, a first support is fixedly arranged in the middle of the bracket, and an electromagnetic clamp is installed on the first support and located under the hanging hook. A second support is arranged below the first support, and an elastic clamp is installed on the second support and located under the electromagnetic clamp. A left clamping piece, a right clamping piece and an intermediate connecting piece are arranged on the elastic clamp, the two clamping pieces and the intermediate connecting piece are integrally formed, and a semicircular groove is formed in the tail end of each clamping piece. When the two clamping pieces are closed, the grooves of the two clamping pieces are closed to form a cylindrical inner cavity, and the internal diameter of the cylindrical inner cavity is the same as the external diameter of an infusion pipe. According to the intravenous infusion accurate automatic control device, it can be guaranteed that infusion stops when the weight of medicine liquid reaches a set warning value, dependence on attendants is reduced, and the weight of the medicine liquid is accurately metered.

Description

The accurate automaton of venous transfusion

Technical field

This utility model belongs to the technical field of medical treatment and nursing utensil, is specifically related to the accurate automaton of a kind of venous transfusion.

Background technology

As everyone knows, in infusion process, if the medicinal liquid in liquid bottle or liquid bag is totally lost completely, the blood of human body can flow backwards and enter tube for transfusion, even can cause other malpractice.Therefore,, when patient is carried out to venous transfusion, conventionally need entourage not stop to monitor the surplus of medicinal liquid.

Afterwards, in order to alleviate entourage's burden, people had designed automatic alarm for transfusion, the disclosed structure such as the document such as ZL200620097469.2, ZL201020197622.5.Existing automatic alarm for infusion is provided with weight sensor, microprocessor, alarm, the lower end of weight sensor is provided with suspension hook, weight sensor is connected to microprocessor by holding wire, and microprocessor connects the alarm of nurse station by wireless signal or wire signal.During work, liquid bottle or liquid bag are hung in below suspension hook, and when weight sensor detects medicinal liquid weight close to warning numerical value, microprocessor will send the alarm signal to nurse station by alarm, has so just alleviated entourage's burden.

But applicant is through research discovery further, existing above-mentioned automatic alarm for transfusion still can not be completely free of the dependence to entourage, still needs to have entourage on-the-spot in ward.This mainly contains the reason of two aspects: first, patient in bed often can be not movable arm independently, thereby likely affect, pull tube for transfusion, and make tube for transfusion in tension state slightly, this pulling force will pass to weight sensor, make the monitoring result of weight sensor occur deviation, when medicinal liquid weight approaches zero, if tube for transfusion is in tension state slightly, the reading of weight sensor can be greater than actual weight, and metering inaccuracy, causes alarm not have and alarm, now were it not for entourage on the scene, will cause blood backflow problem; Second, when the alarm of nurse station sends alarm signal, Residual liquid is described seldom, now, if the staff of nurse station is few, work is acted hurriedly in a messy situation, and differs in the very first time, to arrive in ward surely and process, during this period of time, medicinal liquid enters continuing not stopping transportation, therefore still need to have on-the-spot entourage that tube for transfusion is closed, otherwise medicinal liquid is totally lost very soon, just there will be aforesaid blood backflow problem.

Utility model content

The purpose of this utility model is to overcome above-mentioned shortcoming and provides a kind of venous transfusion accurate automaton, and it guarantees stopping infusion when amount of liquid medicine reaches the warning numerical value of setting, more alleviates the dependence to entourage, and medicinal liquid weight metering is accurate.

Its object can realize by following scheme: the accurate automaton of this venous transfusion comprises support, the top of support is provided with weight sensor, microprocessor, weight sensor is connected to microprocessor by holding wire, the lower end of weight sensor is provided with to hang the suspension hook of liquid bottle or liquid bag, it is characterized in that, middle part at support is also fixed with the first bearing, and an electromagnetic clamp is installed on the first bearing, electromagnetic clamp be positioned at suspension hook under;

Described electromagnetic clamp comprises left and right two fixture blocks, vertical rotating shaft, and vertical rotating shaft is fixed on bearing, and the vertical rotating shaft of stiff end utilization of left and right two fixture blocks is articulated, and is also provided with the limit convex nail of restriction left and right two fixture block opening angles on bearing; When the angle between two fixture blocks of left and right opens up into maximum, the jaws width between two fixture blocks of left and right equals the external diameter of tube for transfusion; Wherein the free end of a fixture block is provided with iron block, and the free end of another fixture block is provided with solenoid, and solenoid is connected with power supply, between power supply and solenoid, is provided with gauge tap, and described microprocessor connects the gauge tap of solenoid by holding wire; Between two fixture blocks of left and right, be also provided with spring, spring applies to left and right two fixture blocks the thrust that they are opened, the suction to iron block when the thrust of spring is less than solenoid energising;

Below the first bearing, be provided with the second bearing, the second bearing is provided with an elastic clip, elastic clip be positioned at electromagnetic clamp under; Elastic clip is provided with two of left and right intermediate plate, middle brace, and two intermediate plates and middle brace are integrally formed, and the end of every intermediate plate is formed with respectively semicircular groove; When two intermediate plate clampings, the groove clamping of two intermediate plates forms columnar inner chamber, and the internal diameter of this cylindrical cavity is identical with the external diameter of tube for transfusion.

The utlity model has following advantage and effect:

One, this utility model is when normal infusion state, tube for transfusion passes from the jaws between left and right two fixture blocks of electromagnetic clamp, the thrust of spring makes left and right two fixture blocks open up into maximum angle, jaws width between two fixture blocks of left and right equals the external diameter of tube for transfusion, and therefore left and right two fixture blocks can not produce any obstruction impact to the circulation of tube for transfusion; When weight sensor detect medicinal liquid weight close to set warning numerical value time, the gauge tap of microprocessor instructs solenoid is connected, so solenoid is switched on and is produced magnetic, make solenoid and iron block adhesive, left and right two fixture blocks clamp, jaws is shunk, tube for transfusion is clamped, thereby automatic stopping infusion, like this, on the scene even without entourage, even if nurse does not come to process in the very first time, can not occur that medicinal liquid flows to end, the problem of backflow of blood, therefore alleviate more up hill and dale the dependence to entourage yet.

Two, the nail of the limit convex on bearing can limit left and right two fixture block opening angles, prevents that like this solenoid and iron block are apart from too far away, prevents that the magnetic field after solenoid energising is not enough to attract iron block.

Three, this utility model is when normal infusion state, tube for transfusion passes from the cylindrical cavity of elastic clip, therefore the end of elastic clip can be fixedly clamped tube for transfusion, and then make elastic clip there are following 4 effects: 1, when patient's posture in bed affects, to pull tube for transfusion, make tube for transfusion when tension state slightly, this pulling force can be isolated and can be upwards delivered to weight sensor by elastic clip, guarantee that weight sensor can not be subject to the interference of tube for transfusion pulling force, therefore avoid the metering of weight sensor to occur error; 2, because elastic clip can be fixedly clamped tube for transfusion, the cylindrical cavity internal diameter of elastic clip is identical with the external diameter of tube for transfusion, between elastic clip and tube for transfusion tube wall, there is surperficial stiction, the weight (the medicinal liquid weight that comprises this pipeline section) that therefore can make to be positioned at the transfusion pipeline section of elastic clip below can not be carried on the suspension hook of weight sensor, makes the metering of weight sensor more accurate; 3, due to elastic clip be positioned at electromagnetic clamp under, therefore elastic clip can be limited to tube for transfusion in the jaws of electromagnetic clamp, avoid tube for transfusion surprisingly to be hauled out the jaws of electromagnetic clamp (due to when the normal infusion state, the jaws of electromagnetic clamp must keep opening, were it not for the restriction of elastic clip, tube for transfusion just easily surprisingly slips out the jaws of electromagnetic clamp, once tube for transfusion slips out the jaws of electromagnetic clamp, electromagnetic clamp cannot play a role when reporting to the police); 4, the cylindrical cavity internal diameter of elastic clip is identical with the external diameter of tube for transfusion, after therefore tightly tube for transfusion being clamped, also can not make the section deformation of tube for transfusion or dwindle, and can not affect normal infusion.

Four, this utility model simple and ingenious structure, volume is small and exquisite, and cost is low, reliable in action, Electromagnetic Control mechanism is difficult for breaking down.

Accompanying drawing explanation

Fig. 1 is facade structures and the working state schematic representation of a kind of specific embodiment of this utility model.

Fig. 2 is the schematic top plan view of electromagnetic clamp mounting structure in Fig. 1.

Fig. 3 is the local enlarged diagram of structure shown in Fig. 2 in normal infusion state.

Fig. 4 is the view that electromagnetic clamp clamps tube for transfusion.

Fig. 5 is the schematic top plan view that Fig. 1 Elastic folder clamps tube for transfusion.

Fig. 6 is the structural representation of Fig. 5 Elastic folder.

Fig. 7 is the view that shown in Fig. 6, elastic clip opens.

The specific embodiment

Shown in Fig. 1, the accurate automaton of this venous transfusion comprises infusion support 1, the top of infusion support 1 is provided with weight sensor 11, microprocessor 12, weight sensor 11 is connected to microprocessor 12 by holding wire, the lower end of weight sensor 11 is provided with to hang liquid bag 81(or liquid bottle) suspension hook 13, at the middle part of infusion support 1, be also fixed with on the first bearing 20, the first bearings 20 electromagnetic clamp 2 be installed, electromagnetic clamp 2 be positioned at suspension hook 13 under.

Shown in Fig. 2, Fig. 3, described electromagnetic clamp 2 comprises vertical rotating shaft 23 and left and right two fixture blocks 21,22, vertical rotating shaft 23 is fixed on bearing 20, the vertical rotating shaft 23 of stiff end utilization of left and right two fixture blocks 21,22 is articulated, between the movable end of left and right two fixture blocks 21,22, form jaws 28, on bearing 20, be also provided with the limit convex nail 24 of restriction left and right two fixture block opening angles; When the angle between two fixture blocks 21,22 of left and right opens up into maximum, jaws 28 width between two fixture blocks of left and right equal the diameter of tube for transfusion 8; Wherein the free end of a fixture block 21 is provided with iron block 25, the free end of another fixture block 22 is provided with solenoid 26, solenoid 26 is connected with power supply, between power supply and solenoid, is provided with gauge tap, and microprocessor 12 connects the gauge tap of solenoid by holding wire; Between two fixture blocks 21,22 of left and right, be also provided with spring 27,27 pairs of left and right two fixture blocks of spring apply the thrust that they are opened, the suction to iron block 25 when the thrust of spring 27 is less than solenoid 26 energising.

Shown in Fig. 1, Fig. 5, Fig. 6, Fig. 7, below the first bearing 20, be provided with the second bearing 40, the second bearings 40 elastic clip 4 be installed, elastic clip 4 be positioned at electromagnetic clamp 2 under; Elastic clip 4 is provided with two of left and right intermediate plate 41,42 and middle brace 43, two intermediate plates 41,42 and middle brace 43 are integrally formed, middle brace 43 utilizes screw 46 to be locked at the side of the second bearing 40, thereby whole elastic clip 4 is fixed on to the second bearing 40 sides; Two intermediate plates 41,42 are connected with respectively handle 47.The end of two intermediate plates 41,42 in left and right is formed with respectively semicircular groove 45; When two intermediate plates 41,42 clamping, the groove clamping of two of left and right intermediate plate 41,42 forms columnar inner chamber 44, and the internal diameter of this cylindrical cavity 44 is identical with the external diameter of tube for transfusion.

Shown in Fig. 7, above-described embodiment is before starting transfusion, can clutch two handles 47 of elastic clip 4, allow two intermediate plates 41,42 open, then tube for transfusion 8 is inserted in the semicircular groove 45 of two intermediate plates 41,42, as shown by the arrows in Figure 7, then unclamp two handles 47 of elastic clip 4, allow two intermediate plates 41,42 return to normality, so tube for transfusion 8 is fixed in the cylindrical cavity 44 of elastic clip tightly, as shown in Figure 5, due to elastic clip be positioned at electromagnetic clamp under, so tube for transfusion 8 is also included in electromagnetic clamp jaws simultaneously.

Shown in Fig. 3, during normal infusion, the thrust of spring 27 makes left and right two fixture blocks 21,22 keep opening up into maximum angle, and the jaws width between two fixture blocks 21,22 of left and right equals the diameter of tube for transfusion 8, and therefore left and right two fixture blocks can not produce any obstruction impact to the circulation of tube for transfusion.

When weight sensor 11 detects liquid bag 81 medicinal liquid weight close to setting numerical value, weight sensor 11 is by test results report microprocessor 12, microprocessor 12 is on the one hand by wireless signal or wire signal report nurse station, order on the other hand the gauge tap of solenoid 26 to be connected, so solenoid 26 is switched on and is produced magnetic, because magnetic force is greater than the thrust of spring 27, magnetic force can overcome spring 27 thrust and by solenoid 26 and iron block 25 adhesives, so left and right two fixture blocks 21, 22 clamp, jaws 28 is shunk, tube for transfusion 8 is clamped, thereby automatic stopping infusion, as shown in Figure 4.

Claims (1)

1. the accurate automaton of venous transfusion, comprise support, the top of support is provided with weight sensor, microprocessor, weight sensor is connected to microprocessor by holding wire, the lower end of weight sensor is provided with to hang the suspension hook of liquid bottle or liquid bag, it is characterized in that: the middle part at support is also fixed with the first bearing, an electromagnetic clamp be installed on the first bearing, electromagnetic clamp be positioned at suspension hook under;

Described electromagnetic clamp comprises left and right two fixture blocks, vertical rotating shaft, and vertical rotating shaft is fixed on bearing, and the vertical rotating shaft of stiff end utilization of left and right two fixture blocks is articulated, and is also provided with the limit convex nail of restriction left and right two fixture block opening angles on bearing; When the angle between two fixture blocks of left and right opens up into maximum, the jaws width between two fixture blocks of left and right equals the external diameter of tube for transfusion; Wherein the free end of a fixture block is provided with iron block, and the free end of another fixture block is provided with solenoid, and solenoid is connected with power supply, between power supply and solenoid, is provided with gauge tap, and described microprocessor connects the gauge tap of solenoid by holding wire; Between two fixture blocks of left and right, be also provided with spring, spring applies to left and right two fixture blocks the thrust that they are opened, the suction to iron block when the thrust of spring is less than solenoid energising;

Below the first bearing, be provided with the second bearing, the second bearing is provided with an elastic clip, elastic clip be positioned at electromagnetic clamp under; Elastic clip is provided with two of left and right intermediate plate, middle brace, and two intermediate plates and middle brace are integrally formed, and the end of every intermediate plate is formed with respectively semicircular groove; When two intermediate plate clampings, the groove clamping of two intermediate plates forms columnar inner chamber, and the internal diameter of this cylindrical cavity is identical with the external diameter of tube for transfusion.

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