Summary of the invention
Main purpose of the present invention is to provide a kind of anti-excessive device and method of syringe pump, to solve syringe pump in prior artID may be excessive problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of anti-excessive device of syringe pump, having comprised:Photoelectric encoder, is arranged on motor; The first counter, is electrically connected with photoelectric encoder, for obtaining by photoelectric encoderThe rotating cycle of motor; Controller, is electrically connected with the first counter, for reading the rotation circle of motor of the first counter feedbackNumber, in the time that the rotating cycle of the motor of the first counter feedback is more than or equal to predetermined reference rotating cycle, controls motor and stopsOperation.
Further, anti-excessive device also comprises timer, and controller is electrically connected with photoelectric encoder, timer and controller electricityConnect, controller obtains the duty of motor by photoelectric encoder, and controls timer timing, in the time that timer is countedBetween while being more than or equal to the working time of the predetermined motor of controller, timer is out of service by controller control motor, orTimer disconnects the power supply of motor by control circuit.
Further, timer is programmable timer, and the working time of predetermined motor is sent to programmable Timer by controllerDevice, programmable timer disconnects the power supply of motor by control circuit.
Further, controller is sending to programmable timer before the working time of predetermined motor, to the work of predetermined motorAdd the surplus time as the time.
Further, anti-excessive device also comprises the second counter, and the second counter is electrically connected with photoelectric encoder and controller,The second counter is for recording the rotating cycle of motor and the rotating cycle of motor being fed back to controller.
Further, anti-excessive device comprises alarm element, alarm element is electrically connected with controller, when the first counter feeds backWhen the rotating cycle of motor is equal to or greater than the rotating cycle of the predetermined motor of controller, controller trigger alarm element.
Further, anti-excessive device also comprises motor-drive circuit, and controller is by motor-drive circuit control motor.
To achieve these goals, according to an aspect of the present invention, provide a kind of anti-metering method of crossing of syringe pump, having comprised:By the rotating cycle of photoelectric encoder testing of electric motors; By the rotating cycle of the first counter records motor; When the first counterWhen the rotating cycle of the motor of record is more than or equal to predetermined reference rotating cycle, controller control motor is out of service.
Further, the anti-metering method of crossing also comprises: receive the working time of the predetermined motor of controller by timer, work as timerThe time of counting, while being more than or equal to the working time of the predetermined motor of controller, disconnects motor by timer operation control circuitPower supply, or it is overtime to feed back to controller machine operation by timer, more out of service by controller control motor.
Further, at controller, by before sending to timer with the working time of fixed motor, method also comprises: to predeterminedThe working time of motor adds the surplus time, and the working time that equals predetermined motor when the time that timer is counted is while adding surplusBetween time, disconnect the power supply of motor by timer operation control circuit.
Apply technical scheme of the present invention, in the time using syringe pump to carry out drug injection, calculate the quantitative medicine of injection by controllerThe rotating cycle of the needed motor of agent, the rotation of the motor of controller control afterwards pushes medicament. In the process pushing at medicament, lightThe rotating cycle of photoelectric coder meeting Real-Time Monitoring motor, and by the rotating cycle of the first counter records motor. In this simultaneously,Controller obtains the rotating cycle of the motor of the first counter feedback, if the rotating cycle of the motor of the first counter feedback equalsWhen predetermined reference rotating cycle, illustrate that predetermined ID completes, it is out of service that controller is controlled motor. Pass throughThe feedback of the first outside counter, can find out truly the effective supply amount of motor, and then get hold of the medicine of syringe pump realityAgent output quantity, avoids the excessive malpractice causing of medicament output.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage. BelowWith reference to figure, the present invention is further detailed explanation.
Detailed description of the invention
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the present invention can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
In order to make those skilled in the art person understand better the present invention program, below in conjunction with the accompanying drawing in the embodiment of the present invention,Technical scheme in the embodiment of the present invention is clearly and completely described, and obviously, described embodiment is only the present inventionThe embodiment of a part, instead of whole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art are not havingHave and make the every other embodiment obtaining under creative work prerequisite, all should belong to the scope of protection of the invention.
It should be noted that term " first ", " second " etc. in description of the present invention and claims and above-mentioned accompanying drawingBe for distinguishing similar object, and needn't be used for describing specific order or precedence. Should be appreciated that the data of such useSuitably exchanging in situation, so that embodiments of the invention described herein. In addition, term " comprises " and " having "And their any distortion, intention is to cover not exclusive comprising, for example, the process that comprised series of steps or unit,Those steps or unit that method, system, product or equipment are not necessarily limited to clearly list, but can not comprise clearly rowThat go out or for these processes, method, product or equipment intrinsic other step or unit.
As shown in Figure 1, syringe pump generally includes motor 80, reducing gear 90 and plunger displacement pump infusion device, and motor 80 is by subtractingSpeed mechanism 90 is to plunger displacement pump infusion device output straight-line feed, and then plunger displacement pump infusion device pushes medicament in patient body.
Fig. 1 shows the anti-excessive device of the syringe pump of the present embodiment, and this anti-excessive device comprises photoelectric encoder 10, controller20 and first counter 30. Photoelectric encoder 10 is arranged on motor. The first counter 30 is electrically connected with photoelectric encoder 10Connect, for obtain the rotating cycle of motor by photoelectric encoder 10. Controller 20 is connected with the first counter 30, for readingGet the rotating cycle of the motor that the first counter 30 feeds back, the rotating cycle of the motor feeding back when the first counter 30 be greater than or etc.In the time of predetermined reference rotating cycle, control motor out of service.
Using syringe pump while carrying out drug injection, calculate the needed motor 80 of injection quantitative pharmacy by controller 20Rotating cycle, controller 20 is controlled motor 80 rotations and is pushed medicament afterwards. In the process pushing at medicament, photoelectric encoder 10Understand the rotating cycle of Real-Time Monitoring motor 80, and record the rotating cycle of motor 80 by the first counter 30. In this simultaneously,Controller 20 obtains the rotating cycle of the motor 80 that the first counter 30 feeds back, if the motor 80 that the first counter 30 feeds backRotating cycle equal to be scheduled to reference rotating cycle time, illustrate that predetermined ID completes, 20 of controllers are controlled electricityMachine 80 is out of service. The feedback of the first counter 30 by outside, can find out the effective supply amount of motor 80 truly,And then get hold of the medicament output quantity of syringe pump reality, avoid the excessive malpractice causing of medicament output.
Optionally, when the rotating cycle of the motor 80 that also can feed back at the first counter 30 is greater than predetermined reference rotating cycle,It is out of service that controller 20 is controlled motor 80. So also can stop in time the supply of motor 80, avoid overdose of medicine agent to enterIn patient body.
As shown in Figure 1, the anti-excessive device of the present embodiment also comprises timer 40, and controller 20 is electrically connected with photoelectric encoder 10Connect, timer 40 is electrically connected with controller 20. Controller 20 obtains the duty of motor 80 by photoelectric encoder 10,And control timer 40 timing. Be more than or equal to the work of the predetermined motor of controller 20 80 when the time of timer 40When time, it is out of service that timer 40 is controlled motor 80 by controller 20, or timer 40 disconnects by control circuitThe power supply of motor 80.
Using syringe pump while carrying out drug injection, calculate the needed motor 80 of injection quantitative pharmacy by controller 20Rotating cycle, then can also calculate the injection needed time of quantitative pharmacy by the rotating speed of motor 80. Pass through photoelectric encoder10 can obtain the duty of motor 80, and can record by timer 40 running time of motor 80. If electricThe running time of machine 80 has been greater than the working time of the predetermined motor 80 of controller 20, and the supply of motor 80 is describedAmount, can cause liquid to be supplied with excessive. So equal the predetermined motor of controller 20 80 in the running time of motor 80When working time, stop in time motor 80, just can avoid medicament infusion excessive.
Optionally, also can, in the time that the time of timer 40 is greater than the working time of the predetermined motor of controller 20 80, lead toCross controller 20 and control the out of service or timer 40 of motor 80 and disconnect by control circuit the power supply of motor 80. Conventionally feelingsUnder condition, motor 80 and the infusion mechanism schedule operating time in the time of the quantitative medicament of infusion can float within the specific limits. Therefore,The time of timer 40 is greater than the working time of the predetermined motor of controller 20 80, can give motor 80 and infusion machineStructure time enough completes medicament infusion.
In the present embodiment, timer 40 is programmable timer, and controller 20 sends the working time of predetermined motor 80Give programmable timer, programmable timer disconnects the power supply of motor 80 by control circuit. Optionally, exist at controller 20Sent to programmable timer before the working time of predetermined motor 80, when the working time of predetermined motor 80 is added to surplusBetween. In like manner, adding the surplus time is also in order to give motor 80 and infusion mechanism time enough completes medicament infusion. ControllingWhen device 20 or photoelectric encoder 10 damage, the programmable timer measure that can provide safeguard, avoids motor 80 to continue to carry out defeatedNote is ordered and is caused medicament infusion excessive.
As shown in Figure 1, in the present embodiment, anti-excessive device also comprises the second counter 50, the second counters 50 and photoelectricity volumeCode device 10 and controller 20 are electrically connected, and the second counter 50 is for recording the rotating cycle of motor 80 and by the rotation of motor 80The number of turns feeds back to controller 20. Controller 20 receives the rotating cycle of the motor 80 that the second counter 50 feeds back, by comparing electricityWhether the rotating cycle of machine 80 equals predetermined value, can judge whether shot action completes.
As shown in Figure 1, in the present embodiment, the first counter 30 is the internal counter of controller 20, and the second counter50 for being arranged on the external counter of controller 20 outsides.
As shown in Figure 1, in the present embodiment, anti-excessive device comprises alarm element 60, alarm element 60 and controller 20 electricityConnect. The rotating cycle of the motor 80 feeding back when the first counter 30 is equal to or greater than revolving of the predetermined motor of controller 20 80Turn-take when several, controller 20 trigger alarm elements 60. Can remind in time user's syringe pump fault by alarm element 60,And then change in time injection.
As shown in Figure 1, in the present embodiment, anti-excessive device also comprises motor-drive circuit 70, and controller 20 drives by motorMoving circuit 70 is controlled motor 80.
The present invention also comprises a kind of anti-metering method of crossing of syringe pump, and this anti-metering method of crossing comprises:
By the rotating cycle of photoelectric encoder 10 testing of electric motors 80;
Record the rotating cycle of motor 80 by the first counter 30;
When the rotating cycle of the motor 80 recording when the first counter 30 is more than or equal to predetermined reference rotating cycle, by controlIt is out of service that device 20 processed is controlled motor 80. If the rotating cycle of the motor 80 that the first counter 30 feeds back equals controller 20When the rotating cycle of predetermined motor 80, illustrate that predetermined ID completes, 20 control motors 80 of controller stopOperation. The feedback of the first counter 30 by outside, can find out the effective supply amount of motor 80 truly, and then holdsThe medicament output quantity of good syringe pump reality, avoids the excessive malpractice causing of medicament output.
The rotating cycle of the motor 80 optionally, recording when the first counter 30 is greater than revolving of the predetermined motor of controller 20 80Turn-take when several, it is out of service that controller 20 is controlled motor 80. So also can stop in time the supply of motor 80, avoid excessiveMedicament enter in patient body.
The anti-metering method of crossing of the present invention also comprises, receives the working time of the predetermined motor of controller 20 80 by timer 40.In the time that the time of timer 40 equals the working time of the predetermined motor of controller 20 80, by timer 40 operation controlsCircuit processed disconnects the power supply of motor 80, or feeds back to controller 20 motors 80 by timer 40 and work overtimely, then passes throughIt is out of service that controller 20 is controlled motor 80. Can obtain the duty of motor 80 by photoelectric encoder 10, and canRecord the running time of motor 80 by timer 40. If the running time of motor 80 has been greater than controller 20The working time of predetermined motor 80, illustrates that the supply of motor 80 is excessive, can cause liquid to be supplied with excessive. So at electricityThe running time of machine 80 stops motor 80 while equaling working time of the predetermined motor of controller 20 80 in time, just can avoidMedicament infusion is excessive.
Optionally, in the time that the time of timer 40 is greater than the working time of the predetermined motor of controller 20 80, by timingDevice 40 operation control circuits disconnect the power supply of motor 80, or it is super to feed back to controller 20 motor 80 work by timer 40Time, then it is out of service to control motor 80 by controller 20. Under normal circumstances, motor 80 and infusion mechanism are quantitative at infusionSchedule operating time when medicament can float within the specific limits. Therefore, to be greater than controller 20 pre-the time of timer 40The working time of fixed motor 80, can give motor 80 and infusion mechanism time enough completes medicament infusion.
The anti-metering method of crossing of the present invention also comprises, will send to timer 40 with the working time of fixed motor 80 at controller 20Before, the working time of predetermined motor 80 is added to the surplus time. Equal predetermined motor 80 when the time of timer 40Working time while adding the surplus time, disconnect the power supply of motors 80 by timer 40 operation control circuits. In like manner, addThe surplus time is also in order to give motor 80 and infusion mechanism time enough completes medicament infusion. At controller 20 or photoelectricityWhen encoder 10 damages, the programmable timer measure that can provide safeguard, avoids motor 80 to continue carry out infusion command and causeMedicament infusion is excessive.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art, the present invention can have various modifications and variations. Within the spirit and principles in the present invention all, any amendment of doing, etc.With replacement, improvement etc., within all should being included in protection scope of the present invention.