CN2208933Y

CN2208933Y - Transfusion monitor

Info

Publication number: CN2208933Y
Application number: CN 94230918
Authority: CN
Inventors: 林梦麟
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-30
Filing date: 1994-11-30
Publication date: 1995-10-04
Anticipated expiration: 2004-11-30

Abstract

The utility model relates to medical equipment. The utility model mainly solves the shortcomings of the existing infusion monitor of high manufacturing cost and poor anti-interference ability and the shortcomings that the existing infusion monitor only can carry out an alarm and monitoring, is incapable of automatically closing an infusion device, and can not carry out setting and selection for dropping speed. The utility model is composed of a signal reception unit, a signal processing unit and a performance unit, wherein, a sensor probe is arranged on a spring clamping apparatus; the signal processing unit is composed of a signal amplifying and shaping circuit, a dropping display circuit, a periodic comparator circuit and a clear circuit; the performance unit comprises a checking circuit, an acoustic-optic alarm circuit and an infusion self-closing device.

Description

Transfusion monitor

This utility model relates to a kind of medical apparatus and instruments, and specifically a kind of overall process to transfusion is supervised and shown and infuse and close the monitoring infusion device of infusion set after finishing automatically.

Yi Fashengyin stops up and stops and drips or phenomenons such as injection rate instability or medicine liquid leakage in the infusion process, if untimely processing, then can produce more serious medical consequences, people have proposed multiple solution for this reason, conclude and to get up to mainly contain following two classes: 1. show that by prison the liquid level in the infusion bottle realizes the prison of whole infusion process is shown, as Chinese patent 87203490,90215128,93210674 and 93242621, this method has changed traditional transfusion custom and mode, operation is inconvenience also, especially can't detect for the infusion bottle that adopts lighttight material such as plastics and prison shows; 2. show that by prison the drop in the Murphy tube realizes the prison of whole infusion process is shown, as Chinese patent 86205505,91208796 and 93242621, this method does not change traditional transfusion custom, only adds monitor on existing infusion set, and is easy to operate.But carefully more above-mentioned three kinds of Chinese patents, still having significantly deficiency, is to adopt microprocessor as core as Chinese patent 86205505, though can realize the prison of whole infusion process is shown and drips the control of speed, but manufacturing cost is too high, is difficult to popularize; And for example Chinese patent 91208796 is that one group of infrared transmitting tube and infrared receiving tube are housed on Murphy tube, when drop process infrared beams, can sponge the part infrared ray, make the infra-red intensity that receives on the infrared receiving tube weaken, reach the purpose that prison shows infusion process thus, but because drop is to infrared ray absorbing seldom (be infra-red intensity change very little), seek out the drop signal, need amplify by very big amplification and (illustrate in this patent document and need carry out 10,000 times amplification), dynamically show by amplifying the acquisition drop, send alarm signal (stipulate in the file to stop in 10～15 seconds to drip and report to the police) behind the signal during again through pulse integration delay circuit and the interruption of voltage comparator circuit acquisition drop, with the very high frequency counting display circuit of drop signal input manufacturing cost, this shows the technical scheme more complicated of this patent simultaneously, poor anti jamming capability, the manufacturing cost height.

Except that above-mentioned deficiency, existing technical scheme also has a common shortcoming, be exactly only to have warning function, can not close infusion set automatically, promptly can only use as display monitor central monitoring system, can not use as monitor, and except the technology that adopts little processing controls, other scheme all can not be dripped fast setting, selection and prison at the desired different transfusion speeds of various disease and be shown.

The purpose of this utility model provides that a kind of low cost of manufacture, capacity of resisting disturbance are strong, the prison of can reporting to the police shows, can close automatically again infusion set and can be to dripping the monitoring infusion device that speed is set and selected.

This this with novel also be to show that by prison the drop realization in the Murphy tube shows the prison of whole infusion process, but the principle of the drop absorptive red light line of being taked with Chinese patent 91208796 is different, be to take the principle of drop to infrared reflection, when just going into drop in the Murphy tube, can reflect away most of infrared ray through infrared beams, make that the infra-red intensity decay that receives on the infrared receiving tube is bigger, be easy to obtain the pulse signal of drop, and need not carry out the amplification of very big multiple, capacity of resisting disturbance is strong, the period ratio that the integrated package (ripple enumerator at once) that adopts the number electronic circuit simultaneously replaces microprocessor as core parts and drip the setting and the selection function of speed, structure is simpler, low cost of manufacture, the use power consumption is little, only need four joint 5# batteries, also can use external power supply.

This utility model is made up of signal receiving unit, signal processing unit and performance element.

This utility model can be realized by following mode:

The infrared sensor probe that infrared-emitting diode D1 in the signal receiving unit and infrared receiving diode D2 constitute is installed on the spring perch, sound light alarming circuit in the performance element is made up of flashing oscillator IC2-3 and IC2-4, resistance R 12, adjustable resistance RP2, capacitor C 2, flash tube LED3, resistance R 13 and trigger IC3, resistance R 10 and R11, audion BG2, news Chinese percussion instrument FMQ, signal processing unit is made up of signal amplification shaping circuit, dropping liquid display circuit, cycle comparison circuit and clear circuit, wherein:

A. above-mentioned signal amplification shaping circuit is made up of resistance R 2 and R3, audion BG1 and two input nand gate IC2-1.

B. above-mentioned dropping liquid display circuit is made up of LED 2 and resistance R 4.

C. above-mentioned cycle comparison circuit is made up of the setting that can drip speed and ripple counter IC1 and K switch 1, K2, K3, K4, K5, K6, resistance R 7 and the RC oscillation source of selection, and wherein the RC oscillation source is made up of resistance R 5 and R6, adjustable resistance RP1 and capacitor C 1.

D. above-mentioned clear circuit is made up of button AN1, resistance R 8 and two input nand gate IC2-2.

Also has the infrared emission display circuit of forming by the LED 1 of current-limiting resistance RO and indication infrared-emitting diode D1 duty in the above-mentioned signal receiving unit, be connected with current-limiting resistance R1 on the infrared receiving diode D2, said infrared-emitting diode D1 and infrared receiving diode D2 are installed on the anchor clamps base plate and the sender unit cap that had launch hole and receiver hole in the groove covers, alligator clamp is installed on the anchor clamps base plate of groove below, also has the check circuit and the automatic closing organ of being made up of button AN2 and resistance R 9 of infusing in the above-mentioned performance element.

The automatic closing organ of above-mentioned transfusion is made up of micro machine that has decelerator and the shutoff that is connected with decelerator execution bar, advance limit switch and tube for transfusion anchor clamps, and micro machine passes through relay J 1 and is connected with sound light alarming circuit.

The automatic closing organ of above-mentioned transfusion also can be carried out bar and the tube for transfusion anchor clamps are formed by electric magnet, the shutoff that is with holddown spring, and electric magnet passes through relay J 1 and is connected with sound light alarming circuit.

This utility model except that have to the obstruction that takes place in the infusion process, leak outside and drip phenomenons such as fast instability supervise show with warning function, also has the function of closing infusion set automatically, make fault can not continue to enlarge and development, the serious medical consequences that produces is failed in time to handle because of the nursing staff in the back of avoiding reporting to the police, while this utility model can also drip fast setting, selection and prison at the desired different transfusion speeds of various disease and show, and has infrared transmitting tube work prison to show that demonstration, dropping liquid state show and the Presentation Function that glistens of reporting to the police.

Accompanying drawing 1 is this utility model frame principle figure.

Accompanying drawing 2 is this utility model circuit theory diagrams.

Accompanying drawing 3 and accompanying drawing 4 are the spring perch structural representation.

Accompanying drawing 5 is the theory structure sketch map that automatic closing organ adopts microelectromechanical structure.

Accompanying drawing 6 is the theory structure sketch map that automatic closing organ adopts electromagnet structure.

Accompanying drawing 7 is this utility model user mode sketch map.

Among the figure: 1-anchor clamps base plate, 2-groove, 3-emission (receptions) hole, 4-sender unit cap, 5-alligator clamp, 6-decelerator, 7-micro machine, 8-turn-off execution bar, 9-advance limit switch, 10-tube for transfusion anchor clamps, 11-electric magnet, 12-holddown spring, 13-Murphy tube, 14-drop, 15-tube for transfusion.Wherein the M in the circuit theory diagrams represents micro machine or electric magnet, when M is micro machine, between M and the E point limit switch 9 that advances is housed.

Further specify this utility model (being embodiment) below in conjunction with accompanying drawing:

The model of IC1 is CD4060, the model of IC2-1 and IC2-2 and IC2-3 and IC2-4 is CD4011, the model of IC3 is CD4027, assemble each components and parts by aforementioned manner and promptly become this utility model with other parts, drip the setting debugging of speed then, select the parameter of internal clock source RC, can obtain the corresponding internal fixation clock cycle, Q5 at ripple counter IC1, Q6, Q7, Q8, to export corresponding internal clocking periodic pulse signal on Q9 and the Q10 outfan, above-mentioned like this each outfan promptly becomes the outfan that drips the speed setting, K switch 1, K2, K3, K4, K5 can be used to select six kinds of different cycle comparison output signals that drip speed with K6.Amplify by audion BG1 by the drop pulse signal of exporting on the signal receiving unit (cycle is represented with T) during work and two input nand gate IC2-1 shapings after, by two input nand gate IC2-1 output drop pulse train, each periodic signal of drop is added on the zero clearing input of ripple counter IC1 and compares with the drop cycle (to represent in the T) that inside has been set, transfusion speed is more than or equal to the speed of having set of dripping when in T≤T, this moment in ripple counter each cycle of IC1 is constantly by the zero clearing of drop pulse institute, selected outfan non-output signal, the expression transfusion is normally carried out, transfusion speed is less than the speed of having set of dripping when in T＞T, this moment in ripple counter each cycle of IC1 can not be cleared, selected outfan output intercycle pulse signal is to performance element, make trigger IC3 trigger action, and amplify by audion BG2 and to make relay J 1 action, news Chinese percussion instrument FMQ sends alarm signal, meanwhile the E point is to micro machine 7 power supplies, make shutoff carry out bar 8 actions by decelerator 6, close tube for transfusion 15, the power supply of micro machine 7 is turn-offed in limit switch 9 actions of advancing this moment, carry out bar 8 crowded broken tube for transfusions 15 in order to avoid turn-off, or the E point makes electric magnet 11 actions, discharge holddown spring 12, make shutoff carry out bar 8 actions tube for transfusion 15 is closed.

If be adjusted into 14.6ms in the above-mentioned T, then will export internal clocking periodic pulse signal on each outfan of ripple counter IC1 corresponding to 128 droplets/minute, 64 droplets/minute, 32 droplets/minute, 16 droplets/minute, 8 droplets/minute and 4 droplets/minute, can select six kinds of differences to drip the cycle comparison output signal of speed by the switch on the control ripple counter IC1, above-mentioned six kinds speed can satisfy the desired difference of various disease substantially and drip speed.

This utility model can be operated by following step:

1. the preceding first opening power of each use also presses the button AN2, if the automatic closing organ action of sound light alarming circuit and transfusion, then this device can normally use, and presses the button AN1 and makes trigger IC3 and ripple counter IC1 zero clearing, the state of resuming work, otherwise this device has fault not use;

2. alligator clamp 5 is clipped in the bottom of Murphy tube 13, this moment, groove 2 was positioned at the top of Murphy tube 13, the drop that has just entered in the Murphy tube 13 is just in time aimed in emission (reception) hole 3, regulating infusion set makes a speed reach requirement, on this device, can see dropping liquid and show that LED 2 with the number of drops flash of light, illustrates that receiving element is working properly;

3. select the switch on the ripple counter IC1, if it is 8～15 droplets/minute that a speed of above-mentioned infusion set requires, then K switch 2 is closed, promptly be set at 8 droplets/minute, be lower than 8/timesharing as long as drip speed, this device promptly carries out sound and light alarm and closes automatically, otherwise just action after transfusion finishes;

4. turning off power supply after transfusion finishes gets final product.

Claims

1, a kind of monitoring infusion device, by signal receiving unit, signal processing unit and performance element are formed, wherein: the infrared sensor probe that infrared-emitting diode D1 in the signal receiving unit and infrared receiving diode D2 constitute is installed on the spring perch, sound light alarming circuit in the performance element is by flashing oscillator IC2-3 and IC2-4, resistance R 12, adjustable resistance RP2, capacitor C 2, flash tube LED3, resistance R 13 and trigger IC3, resistance R 10 and R11, audion BG2, news Chinese percussion instrument FMQ forms, it is characterized in that signal processing unit is by signal amplification shaping circuit, the dropping liquid display circuit, cycle comparison circuit and clear circuit are formed, wherein:

2, by the described a kind of monitoring infusion device of claim 1, it is characterized in that also having the infrared emission display circuit of forming by the LED 1 of current-limiting resistance RO and indication infrared-emitting diode D1 duty in the said signal receiving unit, be connected with current-limiting resistance R1 on the infrared receiving diode D2, said infrared-emitting diode D1 and infrared receiving diode D2 are installed on the anchor clamps base plate and the sender unit cap that had launch hole and receiver hole in the groove covers, alligator clamp is installed on the anchor clamps base plate of groove below, also has the check circuit and the automatic closing organ of being made up of button AN2 and resistance R 9 of infusing in the said performance element.

3, by claim 1 or 2 described a kind of monitoring infusion devices, it is characterized in that the automatic closing organ of said transfusion is made up of micro machine that has decelerator and the shutoff that is connected with decelerator execution bar, advance limit switch and tube for transfusion anchor clamps, micro machine passes through relay J 1 and is connected with sound light alarming circuit.

4, by claim 1 or 2 described a kind of monitoring infusion devices, it is characterized in that the automatic closing organ of said transfusion is carried out bar by electric magnet, the shutoff that is with holddown spring and the tube for transfusion anchor clamps are formed, electric magnet passes through relay J 1 and is connected with sound light alarming circuit.