CN2170543Y

CN2170543Y - Infusion alarm

Info

Publication number: CN2170543Y
Application number: CN 93224868
Authority: CN
Inventors: 曹福梁; 夏红
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-10-04
Filing date: 1993-10-04
Publication date: 1994-06-29
Anticipated expiration: 2003-10-04

Abstract

The utility model relates to an electromechanical integrative device which belongs to a monitoring instrument used in the medical treatment and sanitation fields. A slide block is driven to move by a heavy extension spring, and a link mechanism is drawn to regulate the resistance of a potentiometer; a resistance signal is turned into a voltage signal via an electric bridge to monitor and give an alarm. The novel transfusion alarm can be used in hospitals for monitoring liquid in a transfusion bottle in real time; the novel transfusion alarm can replace medical personnel to observe the quantity of the liquid in the transfusion bottle and judge whether the transfusion is finished or not. When the transfusion is about to be finished, the novel transfusion alarm emits an alarm to prompt the medical personnel to replace the transfusion bottle. The novel transfusion alarm largely decreases the work of the medical personnel, especially nocturnal work intensity. The utility model has the advantages of simple structure, small volume, low cost and convenient application.

Description

Infusion alarm

The utility model belongs to the applied electromechanical integration monitoring devices in field such as health care.

This device is experienced the weight that hangs last liquid in the liquid bottles by the measurements of springs device, and the variable quantity of this weight is changed into electric signal, through analog computation and amplification, and the work of control hummer.When liquid in container reaches a certain amount of, make buzzer warning, personnel carry out necessary processing near reminding.It is applied to liquid in the medicine and hygiene fields monitoring transfusion bottle, can replaces medical personnel to observe what of liquid in the infusion bottle constantly, make the judgement of whether finishing transfusion.When transfusion is soon finished, give the alarm, remind medical personnel to change infusion bottle.

Present domestic hospital does not use identical with this apparatus function or similar instrument or device basically.What of remaining liq in the infusion bottle each hospital constantly go to observe by medical personnel, thereby whether decision changes infusion bottle.Do not release economical and practically on the market as yet, principle is simple, cheap this quasi-instrument and device.

The purpose of this utility model provides a kind of economical and practical infusion alarm, and it will significantly reduce medical personnel's work, especially the working strength at its night.Help patient's treatment and rehabilitation simultaneously.The utility model is measured by mechanical drive and electronic technology combines, and gives full play to their advantages separately and has designed this covering device.Adopt preloading spring to eliminate mechanically operated gap in the device, mechanical displacement signal is converted into electric signal, thereby very easily amplifies and analog computation, realize transfusion state is monitored, its levels of precision can reach ± 15ml, satisfies the requirement to infusion monitoring fully.

The technical solution of the utility model is: in the infusion process, soup constantly is instilled in the human body by the conduit point.Liquid in the infusion bottle constantly reduces, and the weight of whole infusion bottle constantly alleviates.Infusion bottle is to hang on the slide block by the spring connection of this device.Along with the minimizing of infusion bottle weight, the extended length of spring constantly shortens.Slide block moves upward.By linkage assembly slide block is moved the rotation that is converted into the garden dish, promote the variation of potentiometer resistance by the rotation of disk.With electric bridge resistance variations is converted into voltage change signal.With integrated circuit voltage signal is carried out voltage amplification, carry out power amplification again, start the indication of buzzer warning and luminotron at last by triode.

The utility model has been given full play to the strong point of mechanical mechanism and electronic installation, and therefore simple in structure, monitoring accurately, volume is little, in light weight, cost is low.

The utility model description of drawings is as follows:

Fig. 1 mechanical measurement mechanism synoptic diagram

The sectional view of Fig. 2 Figure 1A-A

Fig. 3 dial means synoptic diagram

Fig. 4 warning device electronic circuit synoptic diagram

Number in the figure is described as follows:

1. spring erecting frame 14. is linked up with

2. fixed head 15. central shafts

3. preloading spring 1 16. measuring spring

4. rotating shaft 1 17. potentiometers

5. disk 18. is drawn lead

6. rotating shaft 2 19. potentiometer R _yAxle

7. connecting rod 20. rotating shafts 3

8. erecting frame 21. bending plates

9. spring fixed pin 22. index dials

10. slide block 23. potentiometer R _xKnob

11. preloading spring 2 24. potentiometer R _xAxle

12. mounting screw 25. casings

13. suspension frame

Illustrate that in conjunction with the embodiments the utility model structure is as follows:

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, below fixed head 2, a bending plate 21 is arranged, vertical with fixed head 2.One hole is arranged on bending plate 21, and central shaft 15 passes through from this hole, and this bore dia is more bigger than the diameter of axle.Erecting frame 8 has been fixed in fixed head 2 upper ends.Erecting frame 8 upper ends link to each other with Infusion support.Have a hole to be used to adorn potentiometer 17 in the middle of erecting frame 8, potentiometer 17 is fixed in the above.Potentiometer is placed on the axle 19 disk 5 is housed.Disk 5 center pits and current potential axle 19 wringing fits.Two apertures are arranged outside the outer, disk limit, two and friction tight rotating shaft 6 of aperture and rotating shaft 4 are housed.Preloading spring 3 one ends are connected the other end and link to each other with support 1 on the fixed head 2 with rotating shaft 4.Support 1 is fixed on the fixed head 2.Axle 6 by connecting rod 7 be fixed on slide block 10 on spools 20 be connected.Slide block 10 move through axle 20 drivening rods 7, and then affect axle 6 and disk 5 to rotate, the rotating shaft 20 of driven rotary potentiometer 17 changes resistance value.Slide block 10 is connected on the measuring spring 16, and measuring spring 16 other ends are suspended on the pin 9 that is fixed on central shaft 15 upper ends.Central shaft passes spring 16 and slide block 10, and the hole on the bending plate 21 is passed in the lower end, and the other end is connected with erecting frame 8.Preloading spring 11 is through on the central shaft 15, and upper and lower side links to each other with bending plate 21 with slide block 10 respectively, hangs frame 13 and is fixed on the slide block 10, and a hook 14 is arranged on it.Infusion bottle just hangs on 14.

Of the present utility model pre-aligned by another potentiometer 24 realizations that are located on the casing.Potentiometer is fixed on the casing 25, and the center pit of index dial 22 is by the turning axle 24 of potentiometer.Potentiometer R _xKnob 23 and turning axle 24 wringing fits.25 of index dial 22 and knob 23 and casings are gapped, can rotate respectively.

When infusion bottle is hung on the hook 14, package unit is suspended on the infusion support by erecting frame 8.At this moment spring 16 elongations, slide block 10 moves downward, simultaneously by rotating shaft 20 drivening rods 7, again by rotating shaft 6, rotary disk 5.Because the rotating shaft 19 of potentiometer 17 is fixed on the dish 5, the resistance of potentiometer changes, and 18 informs circuit by going between.R in the circuit _yIt promptly is potentiometer 17 among Fig. 1.The resistance variations of potentiometer, bridge balance is destroyed, has voltage to output on integrated operational amplifier two input ends.Because two integrated circuit input polarity is opposite, so two integrated packages have different voltage outputs.When the input positive potential, integrated circuit 2 is output as noble potential, and integrated circuit 1 is output as electronegative potential.Triode 2 conductings this moment, triode 1 ends, and hummer S does not ring.Along with the outflow of liquid, R _yRecover gradually, when bridge balance, input voltage is zero.This moment, the voltage of integrated circuit 2 outputs was 0, and triode 2 ends, triode 1 conducting, and hummer S pipes, and reports to the police.

R among the figure _xPotentiometer be initial balance resistance, be used to adjust the infusion bottle that makes this device be applicable to different materials, as vial, plastic bottle etc.Integrated circuit 2 is used to regulate initial balance indication design, and luminotron is used to adjust initial bridge balance indication thereafter.

The job order of whole device is as follows, and infusion bottle is hung below this device.Adjust potentiometer R _xKnob 23 extinguishes up to indication luminotron L, while buzzer warning, rotational potentiometer R _xIndex dial 22 align with rotary label on the potentiometer, afterwards the rotational potentiometer adjusting knob to the bottle in an amount of liquid place can use.For example, in the bottle 500ml liquid is arranged, be about to knob and be threaded onto 500 places.

Claims

1, a kind of infusion alarm of being made up of spring, potentiometer, central shaft, slide block, hook and casing is characterized in that this device is made of signal amplification circuit, connecting rod, preloading spring, suspension frame, potentiometer knob, index dial.

2,, it is characterized in that connecting by connecting rod between garden dish, the slide block according to power 1 described alarm; Have hole and potentiometer knob wringing fit in the dish of garden; Between garden dish and the fixed mount, be connected with preloading spring between slide block and the bending plate.

3, according to power 1 described alarm, it is characterized in that: hummer in the amplifying circuit and luminous indication can be arranged on the casing; The index dial that also is provided with the potentiometer adjusting knob on the casing and is slidingly matched with it.