CN204379870U - Syringe pump control circuit - Google Patents
Syringe pump control circuit Download PDFInfo
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- CN204379870U CN204379870U CN201420852375.6U CN201420852375U CN204379870U CN 204379870 U CN204379870 U CN 204379870U CN 201420852375 U CN201420852375 U CN 201420852375U CN 204379870 U CN204379870 U CN 204379870U
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Abstract
This utility model provides a kind of syringe pump control circuit, comprise signal processing circuit and the power circuit of DC source is provided to signal processing circuit, signal processing circuit is to drive circuit output drive signal, wherein, syringe pump control circuit is provided with syringe amount of liquid observation circuit, syringe amount of liquid observation circuit has slide potentiometer, the sliding end of slide potentiometer is connected with the push rod of syringe, and the signal that slide potentiometer exports converts digital signal to and exports signal processing circuit to after analog-digital converter.Whether syringe pump control circuit function of the present utility model is many, can the amount of liquid of Real-Time Monitoring injection, and monitor syringe and block, monitor the specification of syringe, and can realize F.F. and the fast reverse operation of syringe.
Description
Technical field
This utility model relates to medical instruments field, especially relates to the syringe pump control circuit that blood cleaning equipment uses.
Background technology
Hemoperfusion is a kind of new blood purification technology, has been widely used in the treatment of the diseases such as nephropathy, hepatopathy, acute poisoning.Hemoperfusion be by the blood of patient by blood cleaning equipments such as perfusion machines from navigation inside the body to outside, then by perfusion device, the toxin in blood, virus etc. to be adsorbed, reach the noxious substance of blood is adsorbed, object to blood purification.
When carrying out blood purification to patient, often need to inject anticoagulant, to avoid the blood coagulation in extracorporeal circulation, therefore, existing blood cleaning equipment often arranges the syringe for injecting anticoagulant.Existing syringe uses syringe pump to continue to advance mostly, namely drives the push rod of syringe to move by a motor, thus realizes the continuous injection of anticoagulant.Because syringe pump is by step motor drive, therefore need to arrange the control appliance for control step motor, as syringe pump control circuit etc., for to motor output drive signal, the work of control step motor, control the continuous firing of syringe pump thus, thus drive the push rod of syringe to continue to move forward.
The function of the syringe pump control circuit that existing blood cleaning equipment uses is comparatively single, only can realize the function of reporting to the police after syringe is injected and injected, can not meet medical personnel in therapeutic process completely and anticoagulant be injected to the understanding of situation.Visible, there is many defects in existing syringe pump control circuit, first, existing control technology of injecting is comparatively simple, only adopting the mode of opened loop control or indirect closed loop to control motor, there is the flow-control that effectively cannot realize syringe in this control mode, when wearing and tearing appear in the mechanical part of syringe or blood cleaning equipment, often cause bolus amount error excessive, under serious conditions, will the situation that effectively cannot control the injection work of syringe be occurred.
Secondly, existing syringe pump control circuit is not enough to the compatibility of the syringe of different size, the Electric Control Design of existing syringe control circuit carries out designing based on a kind of effective injection stroke of syringe of specific standard, if be accidentally applied on the syringe of other specifications, injection volume will be caused to occur gross error.
Again, the F.F. that injection now controls or rewind injection all need manual realization, and the operation easier of medical personnel is comparatively large, is not easy to the operation of clinical staff.
Moreover, the congestion situations of syringe all do not monitored by existing syringe pump control circuit, syringe is not namely had to block report control function, in bolus infusion processes, pipe internal congestion is there is once syringe, often can not monitor in time and alert process, syringe and transducer potector will be caused to occur breaking, cause treatment potential safety hazard.
Finally, existing syringe pump control circuit can not monitor amount of liquid in syringe in real time, does not also just have real-time anticoagulant total Amount Monitoring function.Current blood cleaning equipment and hemoperfusion equipment generally adopt the injection total amount of the mode of Theoretical Calculation to anticoagulant calculate and show, and when namely calculating anticoagulant injection total amount, are that the product arranging injection speed and inject time calculates.And between the anticoagulant total amount of Theoretical Calculation and the total amount of actual injection, often there is error, be not easy to the understanding of clinical staff for anticoagulant actual amount situation.
Visible, there is the problem of function singleness, syringe poor compatibility, monitoring performance deficiency in the syringe pump control circuit of the blood cleaning equipment be generally applied at present and hemoperfusion equipment.
Summary of the invention
Main purpose of the present utility model is to provide the syringe pump control circuit of the anticoagulant total amount that a kind of effective accurate measurements has been injected.
Another object of the present utility model is to provide the syringe pump control circuit that a kind of compatibility is strong, can realize automatic fast forwarding and fast rewinding and monitoring syringe congestion situations.
In order to realize above-mentioned main purpose, the syringe pump control circuit that this utility model provides comprises signal processing circuit and provides the power circuit of DC source to signal processing circuit, signal processing circuit is to drive circuit output drive signal, wherein, syringe pump control circuit is provided with syringe amount of liquid observation circuit, syringe amount of liquid observation circuit has slide potentiometer, the sliding end of slide potentiometer is connected with the push rod of syringe, and the signal that slide potentiometer exports converts digital signal to and exports signal processing circuit to after analog-digital converter.
From such scheme, syringe pump control circuit is provided with slide potentiometer, and the sliding end of slide potentiometer is connected with the push rod of syringe, and such sliding end can be followed push rod and be slided, thus changes the resistance value of slide potentiometer.Namely signal processing circuit can calculate the position of sliding end by the resistance value gathering slide potentiometer, also the stroke of sliding end is just calculated, calculate the push rod position of syringe thus, and then calculate the amount of liquid of the anticoagulant injected, realize the real-time monitoring to the anticoagulant total amount of having injected.
A preferred scheme is that syringe pump control circuit is also provided with specification of syringe testing circuit, and specification of syringe testing circuit has the photoconductive resistance of more than two, and the power supply that photoconductive resistance reception power circuit provides also outputs signal to signal processing circuit.
As can be seen here, after syringe is installed to syringe pump, because syringe will block photoconductive resistance at least partially, because photoconductive resistance changes its resistance value according to light reception intensity, therefore once photoconductive resistance is blocked, its light reception intensity reduces, and resistance value increases.Which photoconductive resistance is signal processing circuit namely can calculate by the resistance gathering photoconductive resistance is blocked.Further, after the syringe of different size is installed to syringe pump, the quantity of the photoconductive resistance of blocking is not identical, namely can be judged the specification of syringe by the quantity and position judging the photoconductive resistance that resistance value changes.
Further scheme is, the signal that each photoconductive resistance exports exports signal processing circuit to after hysteresis loop comparator.
Visible, the signal that photoconductive resistance exports not is directly export signal processing circuit to, but by exporting signal processing circuit to again after hysteresis loop comparator, the brightness because of syringe surrounding enviroment can be avoided like this to change and impact monitoring result.
Further scheme is, multiple photoconductive resistance is divided into more than two groups, at least one group of photoconductive resistance comprises the photoconductive resistance of more than two, the outfan of the hysteresis loop comparator that multiple photoconductive resistance of same group of photoconductive resistance are corresponding outputs signal to one with door, outputs signal to signal processing circuit with door.
As can be seen here, one group of photoconductive resistance comprises the photoconductive resistance of more than two, and the signal that exports of the photoconductive resistance of same group after hysteresis loop comparator again through exporting signal processing circuit to door, can be detected by the syringe of photoconductive resistance to same specification be arranged on multiple diverse location like this, reduce the situation detecting mistake.
Further scheme is, syringe pump control circuit is provided with fast forwarding and fast rewinding key circuit, fast forwarding and fast rewinding key circuit comprises a F.F. button and a rewind button, F.F. button and rewind button output signal respectively to signal processing circuit, drive circuit is provided with high-frequency pulse signal output circuit, the drive singal that receive signal processing circuit exports, and export high-frequency pulse signal to motor driver, drive circuit is also provided with reverse signal output circuit, the reverse signal that receive signal processing circuit exports, and export reverse signal to motor driver.
Visible, by arranging F.F. button and rewind button, and corresponding response circuit is set on drive circuit, the automatic process of F.F. to injection process and rewind can be realized, avoid people's hand operated, forwarding operation and the fast reverse operation of injection are safer, and simple to operate.
Further scheme is, high-frequency pulse signal output circuit and/or reverse signal output circuit are provided with the photoelectrical coupler to motor driver output signal.
As can be seen here, high-frequency pulse signal output circuit or reverse signal output circuit are connected by photoelectrical coupler with between motor driver, avoid the effect of signals drive circuit of motor driver, guarantee the safety of drive circuit works.
Further scheme is, syringe pump control circuit is provided with syringe and blocks observation circuit, and syringe blocks observation circuit and has the screw rod being hindered rotation by push rod, and screw rod hinders motor to rotate, motor is to encoder output pulse signal, and encoder outputs signal to signal processing circuit.
Visible, the rectilinear motion signal of push rod is become rotating signal and drives encoder to rotate by motor by screw rod, by the signal detecting encoder, namely signal processing circuit can judge whether the push rod of syringe continues to advance, once find that push rod does not continue to advance, represent syringe generation congestion situations, thus effectively the congestion situations of syringe is monitored.
Accompanying drawing explanation
Fig. 1 is the electric theory diagram of this utility model syringe pump control circuit embodiment.
Fig. 2 is the circuit diagram of signal processing circuit in this utility model syringe pump control circuit embodiment.
Fig. 3 is the circuit diagram of power circuit in this utility model syringe pump control circuit embodiment.
Fig. 4 is the circuit diagram of fast forwarding and fast rewinding key circuit in this utility model syringe pump control circuit embodiment.
Fig. 5 is the circuit diagram of drive circuit in this utility model syringe pump control circuit embodiment.
Fig. 6 is the syringe of application this utility model syringe pump control circuit embodiment and the structural representation of photoconductive resistance.
Fig. 7 is the circuit diagram of specification of syringe testing circuit in this utility model syringe pump control circuit embodiment.
Fig. 8 is the syringe of application this utility model syringe pump control circuit embodiment and the structural representation of motor.
Fig. 9 is the circuit diagram of encoder and peripheral circuit thereof in this utility model syringe pump control circuit embodiment.
Figure 10 is the structural representation of syringe and slide potentiometer in application this utility model syringe pump control circuit embodiment.
Figure 11 is the circuit diagram of syringe amount of liquid testing circuit in this utility model syringe pump control circuit embodiment.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Detailed description of the invention
Syringe pump control circuit of the present utility model is applied on the blood cleaning equipments such as such as perfusion machine, blood cleaning equipment is provided with syringe, syringe is driven by syringe pump, syringe comprise a syringe and can relatively syringe slide piston rod, the head of piston rod is connected with push rod, syringe pump drives the head of piston rod to slide by push rod, thus drives piston rod to slide relative to syringe, is expelled in blood by the anticoagulant in syringe.Syringe pump control circuit of the present utility model is for controlling the work of syringe pump.
See Fig. 1, in blood cleaning equipment, be provided with blood cleaning equipment controller 10, for controlling the work of blood cleaning equipment, comprise and exporting control signal to syringe pump control circuit 20, and control the work of syringe pump control circuit 20.Syringe pump control circuit 20 is outputed signal to motor driver 11 by J1 port, and worked by motor driver 11 drive stepping motor 12, motor 12 drives push rod to slide, thus drives the piston rod movement of syringe, realizes the injection of anticoagulant.Simultaneously, syringe pump control circuit 20 is by the information of various Real-Time Monitoring, as specification of syringe, real-time syringe amount of liquid, whether occur that the real time information such as syringe obstruction feed back to blood cleaning equipment controller 10, the various real time information received are fed back to the medical personnel of operation blood cleaning equipment by blood cleaning equipment controller 10 by modes such as warning or Word message promptings.
In the present embodiment, syringe pump control circuit 20 is provided with power circuit 21, signal processing circuit 22, fast forwarding and fast rewinding key circuit 23, syringe amount of liquid observation circuit 24, syringe obstruction observation circuit 25, drive circuit 26 and specification of syringe testing circuit 27.Power circuit 21 is for providing DC source to other circuit modules in syringe pump control circuit 20, signal processing circuit 22 is core circuits of syringe pump control circuit 20, for controlling the work of other circuit modules, and export various real time information to blood cleaning equipment controller 10.Fast forwarding and fast rewinding key circuit 23 comprises F.F. button and rewind button, and detects F.F. button or whether rewind button is pressed, and outputs signal to signal processing circuit 22.Syringe amount of liquid observation circuit 24 for monitoring amount of liquid in syringe, and outputs signal to signal processing circuit 22.Syringe disable circuit 25 monitor liquid in syringe injection speed and thus monitor syringe whether block, occur block time output signal to signal processing circuit 22.The signal that drive circuit 26 receive signal processing circuit 22 exports, and to motor driver 11 output drive signal.The specification of syringe of specification of syringe testing circuit 27 for detecting blood cleaning equipment and using, and output signal to signal processing circuit 22.
See Fig. 2, signal processing circuit 22 has the Master control chip U1 of syringe pump control circuit, it is provided with multiple pin, for receiving the signal etc. of DC source VCC and the output of other circuit modules, and pin one 3,14 is to drive circuit 26 output drive signal, control the work of drive circuit 26, pin two, 3 time-sharing multiplexs are in the Signal reception of syringe amount of liquid observation circuit 24 and blood cleaning equipment controller 10 and output.Signal processing circuit 22 is provided with crystal oscillating circuit, and crystal oscillating circuit is provided with a crystal oscillator Y1, exports crystal oscillation signal as clock reference to Master control chip U1.
Master control chip U1 receives the signal that fast forwarding and fast rewinding key circuit 23, syringe amount of liquid observation circuit 24, syringe obstruction observation circuit 25 and specification of syringe testing circuit 27 export, and judge in specification of syringe, injection process, whether to export obstruction according to received signal, the situation such as total amount of liquid of injection, and control the work of drive circuit 26 thus.
See Fig. 3, power circuit 21 receives outside power supply signal, as received ac signal or the DC signal of 220 volts, and stable low-voltage dc power supply is become by the Power convert of reception to block observation circuit 25, drive circuit 26 and specification of syringe testing circuit 27 for signal processing circuit 22, fast forwarding and fast rewinding key circuit 23, syringe amount of liquid observation circuit 24, syringe.
Power circuit 21 is provided with two power supply process chip U7, U8, respectively external power source is converted to 5 volts of DC sources and 24 volts of DC sources.Power supply as outside input is alternating current, power circuit 21 exports after needing to carry out rectification, blood pressure lowering, filtering, voltage stabilizing to alternating current, electric current as outside input is unidirectional current, then power circuit 21 needs the DC source of outside to reduce to suitable low-tension supply, and exports after voltage stabilizing and filtering.
See Fig. 4, fast forwarding and fast rewinding key circuit 23 is provided with F.F. button S1 and rewind button S2, and preferably, F.F. button S1 and rewind button S2 is the touch-switch of not self-locking.One end ground connection of F.F. button S1, the other end outputs signal to signal processing circuit 22, and rewind button S2 is also one end ground connection, and the other end outputs signal to signal processing circuit 22.Further, at F.F. button S1, be provided with button between rewind button S2 and signal processing circuit 22 and disappear twitter circuit.As seen from Figure 4, the button twitter circuit that disappears comprises resistance R3, R4 and electric capacity C4, C5, and the signal of F.F. button S1 and rewind button S2 disappears after twitter circuit eliminates shaking interference through button and exports signal processing circuit 22 to.
Because F.F. button S1 and rewind button S2 is connected to signal processing circuit 22 by the button twitter circuit that disappears, the noise immunity of F.F. button S1 and rewind button S2 can be improved, eliminate because F.F. button S1 or rewind button S2 shakes the generation of the syringe pump misoperation situation produced.
See Fig. 5, drive circuit 26 has two signal input parts, is input DR and input CO respectively, and two signal input parts are connected with two pins of Master control chip U1 and the signal that exports of receive signal processing circuit 22 respectively.And, drive circuit 26 is provided with high-frequency pulse signal output circuit and reverse signal output circuit, high-frequency pulse signal output circuit comprises amplifier U6D and photoelectrical coupler U3, its drive singal exported by input CO receive signal processing circuit 22, and export high-frequency pulse signal by J1 port to motor driver.Reverse signal output circuit comprises amplifier U6H and photoelectrical coupler U2, its reverse signal exported by input DR receive signal processing circuit 22, and exports reverse signal by J1 port to motor driver.
When F.F. button S1 is pressed, signal processing circuit 22 exports high-frequency pulse signal by the pin of Master control chip U1 to input CO, high-frequency pulse signal exports motor driver 11 to through amplifier U6D and photoelectrical coupler U3, drive stepping motor 12 high speed rotating, thus drive piston rod to push ahead fast.When rewind button S2 is pressed, signal processing circuit 22 exports reverse signal by the pin of Master control chip U1 to input DR, and export high-frequency pulse signal to input CO, reverse signal exports motor driver 11 to through amplifier U6H and photoelectrical coupler U2, high-frequency pulse signal exports motor driver 11 to through amplifier U6D and photoelectrical coupler U3, drive stepping motor 12 high-speed reverse rotates, thus drives piston rod to move backward fast.
In order to detect the specification of the syringe being installed to blood cleaning equipment, the installation site of syringe arranges multiple photoconductive resistance, as shown in Figure 6, syringe installation site is arranged four photoconductive resistance, comprise B1, A1, A2, B2, four photoconductive resistance are arranged in straight line.After syringe 30 is installed to syringe installation site, a part of photoconductive resistance will be blocked, and the quantity of the syringe of the different size photoconductive resistance of blocking, the concrete photoconductive resistance of blocking are not identical yet.
In the present embodiment, four photoconductive resistance are divided into two groups, and wherein photoconductive resistance A1, A2 is first group of photoconductive resistance, and for detecting the syringe of the first specification, photoconductive resistance B1, B2 are second group of photoconductive resistance, for detecting the syringe of the second specification.
See Fig. 7, the first end of each photoconductive resistance all receives 5 volts of power supplys of power circuit 21 output, and the other end is all connected to a hysteresis loop comparator.Such as, second end of photoconductive resistance A1 is connected with hysteresis loop comparator U4B, and second end of photoconductive resistance A2 is connected with hysteresis loop comparator U4C, so analogizes.Like this, if more small change occurs the brightness of syringe pump control circuit surrounding enviroment, can not there is the situation of erroneous judgement because receiving the resistance value slight change of photoconductive resistance in signal processing circuit 22.
Further, the outfan of the hysteresis loop comparator that two photoconductive resistance of same group are corresponding is connected to same with door, is connected to the Master control chip U1 of signal processing circuit 22 with the outfan of door.Such as, the outfan of hysteresis loop comparator U4B, U4C that photoconductive resistance A1, A2 are corresponding is all connected to and door U5, outputs signal to Master control chip U1 with the outfan of door U5.Like this, when only having the resistance value of two of same group of photoconductive resistance photoconductive resistance all to occur significantly to change, signal processing circuit 22 just receives signal, judges the specification of syringe thus.
The photoconductive resistance of blocking due to the syringe of different size is not identical, and after photoconductive resistance is blocked, the light intensity of acceptance reduces, and resistance value increases, and signal processing circuit 22 is by judging that namely the resistance value increase of which group photoconductive resistance can judge the specification of syringe.
In order to whether the injection speed and monitoring syringe of monitoring syringe occur congestion situations, syringe pump control circuit 20 arranges syringe and blocks observation circuit 27.See Fig. 8, push rod 32 end of syringe 30 is threaded with screw rod 35, and the end of screw rod 35 is connected with motor 12, and screw rod 35 rotates with motor 12 and rotates, and motor 12 drives encoder 37 to rotate.
See Fig. 9, the signal that encoder 37 exports exports signal processing circuit 22 to after hysteresis loop comparator U4A.Like this, when blocking does not appear in syringe 30, motor 12 drives screw rod 35 to rotate, and screw rod 35 rotarily drives push rod 32 forward slip, and push rod 32 forward slip promotes piston rod 31 forward slip.Motor 12 drives encoder 37 to rotate simultaneously, and the signal that encoder 37 exports exports signal processing circuit 22 to.Signal processing circuit 22 judges by the signal of received code device 37 speed that push rod 32 moves forward.Equally, the rate signal that encoder 37 exports also can be used as the feedback signal of stepper motor speed fine setting.Once the situation of blocking occurs syringe 30, push rod 32 cannot forward slip, and therefore push rod 32 hinders screw rod 35 to rotate, and because screw rod 35 can not rotate, just hinder motor 12 to rotate, encoder 37 does not just have signal to export yet yet.Therefore the signal that whether signal processing circuit 22 receives encoder 37 by monitoring judges whether syringe 30 situation of blocking occurs.
In order to monitor the total amount of liquid that syringe 30 is injected, syringe pump control circuit 20 is provided with slide potentiometer, and as shown in Figure 10, slide potentiometer 38 is orthoscopic slide potentiometer, and preferably, the length of slide potentiometer 38 is greater than the length of syringe 30 syringe.The sliding end 39 of slide potentiometer 38 is fixedly connected with push rod 32, and therefore sliding end 39 can move with the movement of push rod 32.
See Figure 11, the sliding end of slide potentiometer 37 is connected with analog to digital conversion circuit, analog to digital conversion circuit comprises chip U9 and peripheral circuit, and analog to digital conversion circuit exports signal processing circuit 22 to after the analogue signal that slide potentiometer 37 exports is converted to digital signal.Signal processing circuit 22 judges the stroke of push rod 32 according to received signal, calculates the total amount of the anticoagulant that syringe 30 has been injected thus.
Visible, the syringe amount of liquid testing circuit 24 that syringe pump control circuit 20 is arranged can calculate the anticoagulant total amount that syringe pump 30 is injected in real time, and medical personnel can monitor injection progress easily, are conducive to the control to injection process.Further, syringe pump control circuit 20 is provided with fast forwarding and fast rewinding button 23 circuit, can realize piston rod 31 F.F. and the fast reverse operation of syringe 30, reduces the manually operated trouble of medical personnel.In addition, syringe pump control circuit 20 arranges specification of syringe testing circuit 27, syringe blocks observation circuit 25 and accurately can detect the specification of syringe 30 and monitor the phenomenon whether syringe 30 obstruction occurs, the function of syringe pump control circuit 20 is more, and easy to use.
Certainly, above-described embodiment is only preferred scheme of the present utility model, can also have more change during practical application, and such as, for the syringe of four kinds of now conventional on the market specifications, specification of syringe testing circuit arranges four groups of photoconductive resistance; Or the situation different according to the length of different size syringe, the photoconductive resistance of many groups is not necessarily arranged on the same line, and can be arranged on other positions that syringe can block, such change also can realize the purpose of this utility model.
Finally it is emphasized that; this utility model is not limited to above-mentioned embodiment, and the change such as change, the change of light-sensitive device, the change of orthoscopic stroke device as the change of each circuit module particular circuit configurations, the concrete pin function of each control chip also should be included in the protection domain of this utility model claim.
Claims (10)
1. syringe pump control circuit, comprises
Signal processing circuit and the power circuit of DC source is provided to described signal processing circuit, described signal processing circuit is to drive circuit output drive signal;
It is characterized in that:
Described syringe pump control circuit is provided with syringe amount of liquid observation circuit, described syringe amount of liquid observation circuit has slide potentiometer, the sliding end of described slide potentiometer is connected with the push rod of syringe, and the signal that described slide potentiometer exports converts digital signal to and exports described signal processing circuit to after analog-digital converter.
2. syringe pump control circuit according to claim 1, is characterized in that:
Described slide potentiometer is orthoscopic slide potentiometer.
3. syringe pump control circuit according to claim 1 and 2, is characterized in that:
Described syringe pump control circuit is also provided with specification of syringe testing circuit, and described specification of syringe testing circuit has the photoconductive resistance of more than two, and described photoconductive resistance receives power supply that described power circuit provides and outputs signal to described signal processing circuit.
4. syringe pump control circuit according to claim 3, is characterized in that:
The signal that photoconductive resistance described in each exports exports described signal processing circuit to after hysteresis loop comparator.
5. syringe pump control circuit according to claim 4, is characterized in that:
Multiple described photoconductive resistance is divided into more than two groups, photoconductive resistance described at least one group comprises the described photoconductive resistance of more than two, the outfan of the hysteresis loop comparator that the multiple described photoconductive resistance of same group of photoconductive resistance is corresponding outputs signal to one with door, describedly outputs signal to described signal processing circuit with door.
6. syringe pump control circuit according to claim 3, is characterized in that:
Multiple described photoconductive resistance arrangement point-blank.
7. syringe pump control circuit according to claim 1 and 2, is characterized in that:
Described syringe pump control circuit is provided with fast forwarding and fast rewinding key circuit, and described fast forwarding and fast rewinding key circuit is provided with F.F. button and rewind button, and described F.F. button and described rewind button output signal respectively to described signal processing circuit;
Described drive circuit is provided with high-frequency pulse signal output circuit, receives the drive singal that described signal processing circuit exports, and exports high-frequency pulse signal to motor driver;
Described drive circuit is also provided with reverse signal output circuit, receives the reverse signal that described signal processing circuit exports, and exports described reverse signal to described motor driver.
8. syringe pump control circuit according to claim 7, is characterized in that:
Described high-frequency pulse signal output circuit and/or described reverse signal output circuit are provided with the photoelectrical coupler outputed signal to described motor driver.
9. syringe pump control circuit according to claim 7, is characterized in that:
Described F.F. button and described rewind button are connected to described signal processing circuit by the button twitter circuit that disappears.
10. syringe pump control circuit according to claim 1 and 2, is characterized in that:
Described syringe pump control circuit is provided with syringe and blocks observation circuit, described syringe blocks observation circuit and has the screw rod being hindered rotation by described push rod, described screw rod hinders motor to rotate, described motor drives encoder output pulse signal, and described encoder outputs signal to described signal processing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420852375.6U CN204379870U (en) | 2014-12-28 | 2014-12-28 | Syringe pump control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420852375.6U CN204379870U (en) | 2014-12-28 | 2014-12-28 | Syringe pump control circuit |
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| CN204379870U true CN204379870U (en) | 2015-06-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113936418A (en) * | 2021-12-02 | 2022-01-14 | 北京伏尔特技术有限公司 | Alarm system for insulin pump and insulin pump |
| CN116726312A (en) * | 2023-06-07 | 2023-09-12 | 湖南比扬医疗科技有限公司 | Injection progress detection circuit and method |
-
2014
- 2014-12-28 CN CN201420852375.6U patent/CN204379870U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113936418A (en) * | 2021-12-02 | 2022-01-14 | 北京伏尔特技术有限公司 | Alarm system for insulin pump and insulin pump |
| CN116726312A (en) * | 2023-06-07 | 2023-09-12 | 湖南比扬医疗科技有限公司 | Injection progress detection circuit and method |
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Effective date of registration: 20170926 Address after: Two street 100176 Beijing city of Daxing District Yizhuang Economic Development Zone in 8 Hospital No. 7 building three floor East Co-patentee after: Jafron Biomedical Co., Ltd. Patentee after: Beijing Jian Feng Medical Equipment Co., Ltd. Address before: 519080 Zhuhai science and technology zone, Guangdong high tech Road No. six, No. 98 Patentee before: Jafron Biomedical Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100176 East Third Floor of No.7 Building, No.8 Liangshuihe Second Street, Yizhuang Economic Development Zone, Daxing District, Beijing Co-patentee after: Jianfan Biotechnology Group Co., Ltd. Patentee after: Beijing Jian Feng Medical Equipment Co., Ltd. Address before: 100176 East Third Floor of No.7 Building, No.8 Liangshuihe Second Street, Yizhuang Economic Development Zone, Daxing District, Beijing Co-patentee before: Jafron Biomedical Co., Ltd. Patentee before: Beijing Jian Feng Medical Equipment Co., Ltd. |