CN2335646Y

CN2335646Y - Automatic counting controller for drip

Info

Publication number: CN2335646Y
Application number: CN 98235887
Authority: CN
Inventors: 杨松玉; 周柏林
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-06-03
Filing date: 1998-06-03
Publication date: 1999-09-01
Anticipated expiration: 2008-06-03

Abstract

The utility model relates to an automatic drip counting controller for substituting manual counting and regulating flow rate of transfusion tubes during dripping. An electro-optic coupling element is connected with a pulse amplifying circuit of an automatic counting control circuit, a power amplifying circuit of the automatic counting control circuit is connected with a motor of an actuator, and thus the utility model is formed. The accuracy of dosage in unit time is improved through the utility model so that the flow rate of transfusion tubes is controlled, and infection caused by return blood is avoided.

Description

Counting controller automatically instils

This utility model relates to a kind of instillation (beating garter) count control device automatically.

Artificial Control is all adopted in instillation both at home and abroad at present, in the instillation process,, multiple reason make a number reach requirement because of needing often to regulate flow card wheel, sometimes do not exist because of medical personnel, the intact blood back of flow of liquid causes the air admission blood vessel and infects, the non-general medicinal liquid of instillation of patient during particularly operation and danger are rescued, need its dosage is carried out fast, measure accurately, in this case, artificial counting manually control just can not meet the demands, at present, the measuring method that operating room is traditional is to drip number in several 15 seconds of the manual observation to multiply by 4 be that per minute drips number, and through adjustment-observation-calculating-adjustment again, so repeatedly reach requirement, its shortcoming is that speed is slow, accuracy is difficult for reaching, medical personnel's anxiety of working, intensity is big.

The purpose of this utility model provides the dosage in the accurate measurement unit time of a kind of energy and is controlled, and the infection that can avoid blood back to cause, improves medical personnel's operating power, alleviates the instillation auto-controller of its labor intensity.

Be to realize the purpose of this utility model, this utility model is achieved in that a kind of instillation auto-controller, and it comprises an optocoupler components that is made of infrared ray generator tube and infrared receiver tube that is fit to observe the joint size; An executor who constitutes by motor, gear reduction unit and bayonet socket, motor links to each other with gear reduction unit one end, and gear subtracts the trochus other end and links to each other with the active card of bayonet socket; One by pulse amplifying circuit, clock-pulse circuit, counting display circuit, can preset the automatic count control circuit that counting number display circuit, digital comparator and power amplification circuit are connected and form.

The input of the pulse amplifying circuit in the outfan of optocoupler components and the automatic count control circuit is connected, and the outfan of the power amplification circuit in the count control circuit links to each other with motor among the executor automatically.

This utility model is provided with a warning device, is installed in an output port of power amplification circuit.

This utility model can measure the dosage in unit interval in the tube for transfusion exactly, and is effectively controlled, and can also prevent the infection that causes because of blood back, and apparatus structure is simple, cost is low, easy to use.

Accompanying drawing 1 is circuit theory diagrams of the present utility model;

Accompanying drawing 2 is photoelectric sensor and executor's fundamental diagram.

Below in conjunction with accompanying drawing enforcement of the present utility model is described further:

In the present embodiment, photoelectric sensor 1 is as optocoupler components, the clock pulses of CD4060 model takes place 3 as clock-pulse circuit, integrated computational calculation power amplifier 5 is as power amplification circuit, integrated transporting discharging pulse amplifier 4 is made pulse amplifying circuit, the digital comparator 7 of 74LS85 model is as digital comparator, count display 6 and can preset counting number display 8 respectively as the counting display circuit with can preset digital display and show circuit.

Photoelectric sensor 1 with by pulse amplifier 4, clock pulses device 3, count display 6, the pulse amplifier 4 that can preset in the automatic count control circuit that counting number display 8, digital comparator 7, power amplifier 5 be formed by connecting links to each other, the outfan of the power amplifier 5 in the count control circuit links to each other with motor " M " among the executor 2 automatically.

In the executor 2 who forms by motor " M ", gear reduction unit " Z " and bayonet socket " J ", the active card 11 of motor " M " and bayonet socket " J " is followed at gear reduction unit " Z " two ends respectively, is fixed with bayonet socket " J " active card 11 corresponding another cards.

An outfan of the power amplifier 5 in automatic count control circuit is connected to loudspeaker 10.

Photoelectric sensor 1 is positioned at observes joint 12 places, and observes joint and pass photoelectric sensor 1 and hang down between infrared ray generator tube " D " and infrared receiver tube " Q "; Executor 2 is positioned at the photoelectric sensor below, and tube for transfusion 13 passes the bayonet socket " J " among the executor 2.

During use, photoelectric sensor 1 is transformed into photosignal with the number that drips of liquid, the drop of observing joint 12 whenever drips one, infrared ray generator tube " D " in the photoelectric sensor 1 promptly is blocked once to the infrared ray between the infrared receiver tube " Q ", thereby make it produce pulse, then, the pulse that produces is after pulse amplifier 4 amplifies, be input to count display 6, because the control end of 3 pairs of count displays 6 of clock pulses device carries out the unit interval and periodically controls, so what count display 6 showed is exactly that dripping in the unit interval counted, the digital signal of count display 6 outputs is transported to control signal in the power amplification 5 after comparing in digital comparator 7 with the digital signal that can preset several display 8 outputs, the output voltage of power amplifier 5 is controlled active card 11 chuckings of bayonet socket " J " among the executor 2 or is loosened tube for transfusion 13, thereby reach automatic control and drip several purposes, power supply 9 is made up of D.C. regulated power supply and dc battery jar, for the complete machine each several part provides low-voltage DC, when drop during faster than predetermined number, the numeral relatively signal of 7 outputs makes power amplifier 5 provide chucking voltage for executor 2, motor " M " just changes, driven gear deceleration " Z " action, the active card of bayonet socket " J " is pushed ahead, cause the bayonet socket spacing to dwindle, the tube for transfusion flow is reduced, it is slack-off to drip speed, otherwise, when drop is slower than predetermined number, power amplifier 5 loosens voltage for executor 2 provides, thereby quickening flow velocity, if equate, digital comparator 7 no-outputs, power amplifier 5 is no-output also, " J " is motionless for bayonet socket, after medicinal liquid drips off, photoelectric sensor 1 output pulse train signal is to power amplifier 5, power amplifier 5 provides the voltage that makes the bayonet socket closure for carrying out 2, loudspeaker 10 sound that gives a warning simultaneously is to remind medical personnel, in addition, when the flow of the uncontrollable tube for transfusion 13 of bayonet socket " J ", the loudspeaker sound that also will give a warning.

Claims

A kind of instillation is the counting controller automatically, it is characterized in that: comprise

Optocoupler components that is fit to observe joint (12) size by infrared ray generator tube " D " and infrared receiver tube " Q " formation;

An executor who constitutes by motor " M ", gear reduction unit " Z " and bayonet socket " J ", motor " M " is connected with gear reduction unit " Z " end, and gear reduction unit " Z " other end is connected with the active card (11) of bayonet socket " J ":

One clock-pulse circuit, counting display circuit can preset the counting number display circuit by pulse amplifying circuit, and the automatic count control circuit that digital comparator and power amplification circuit are connected and form receives photosignal, and exports with the form of voltage:

The input of the pulse amplifying circuit in the outfan of optocoupler components and the automatic count control circuit is connected, and the outfan of the power amplification circuit in the count control circuit is connected with motor among the executor automatically.
2, controller is counted in instillation according to claim 1 automatically, it is characterized in that: an outfan at power amplification circuit is provided with warning device.