CN101375807B - Controller of medical electric drill - Google Patents
Controller of medical electric drill Download PDFInfo
- Publication number
- CN101375807B CN101375807B CN2008102009861A CN200810200986A CN101375807B CN 101375807 B CN101375807 B CN 101375807B CN 2008102009861 A CN2008102009861 A CN 2008102009861A CN 200810200986 A CN200810200986 A CN 200810200986A CN 101375807 B CN101375807 B CN 101375807B
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- electric motor
- microprocessor
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Abstract
The invention relates to a controller for a medical electrodrill. Signals detected by a manual switch, a foot controlled switch, a keypad, a current measure circuit of an electric motor and voltage of an electric motor are input into a micro processor; the micro processor processes information according to the input signals and output the information to a display circuit which displays the state of the electric motor; at the same time, the outputs signals, after being isolated by an optoelectronic isolator, reach a control and protection circuit of an electric motor drive to control and protect the electric motor; the output signals of the micro processor adjust the circuit to a switch power source through the voltage of the switch power source; and the switch power source provides power for the control and protection circuit of the electric motor drive. The controller has the beneficial effects that the control of medical electrodrill is intellectualized, the operational status of the electric motor are monitored in a real-time manner, and abnormal operations such as overload and block of the electric motor are effectively prevented.
Description
Technical field
The present invention relates to a kind of instrumentation controller, the electric drill controller that uses in particularly a kind of medical treatment.
Background technology
Medical electric drill is widely used in the orthopaedic medical treatment operation, and in the use of electric drill, it is the major failure of medical electric drill that motor damages, and the electric motor protecting technology is one of core technology of medical electric drill.
The motor damaging cause of medical electric drill is mainly caused by 3 reasons, 1) long-time stall big electric current occurs and burns motor; 2) long term overloading causes motor overheating and burns motor; 3) the continuous switching of forward and reverse big electric current occurs easily and burns motor.
Summary of the invention
The present invention be directed to the incomplete problem of existing medical electric drill control electric motor protecting; a kind of controller of medical electric drill has been proposed; have stall, overload, rotating and produce electric motor protectings such as big electric current, utilize microprocessor and interlock circuit to realize the controller of medical electric drill of software and hardware Based Intelligent Control.
Technical scheme of the present invention is: a kind of controller of medical electric drill; it is characterized in that; comprise microprocessor; the input signal circuit; display circuit; motor-driven control and holding circuit and power circuit; the input signal circuit comprises manual switch; Foot-controlled switch; keyboard; motor current detecting circuit and electric moter voltage detect; the signal of input signal circuit is input in the microprocessor; microprocessor outputs to display circuit after with information processing according to input signal and shows motor status; simultaneously output signal is isolated the back by photoelectricity and motor is controlled and is protected to motor-driven control and holding circuit; display circuit comprises the rotating display lamp; the load display lamp; liquid crystal display; to Switching Power Supply, control provides power supply with holding circuit to Switching Power Supply to the microprocessor output signal to motor-driven by the switch power supply voltage regulator circuit.
Described motor current detecting circuit is made of by the detected analogue signal of motor current detecting circuit constantan wire and several operational amplifiers to be delivered in the AD passage of described microprocessor, and timing microprocessor detects current of electric, monitoring and protection motor.
Comprised in described motor-driven control and the holding circuit and isolated jamproof photoelectric isolating circuit, the MOSFET grid stabilivolt and the resettable fuse F1 of two-fold protection.An other temperature sensor, the radiator temperature input microcontroller of detection MOSFET grid stabilivolt, the monitoring motor overload adorned of the radiator of described MOSFET grid stabilivolt.
Beneficial effect of the present invention is: controller of medical electric drill of the present invention is based on microprocessor; cooperate relevant functional circuit; possess rotating speed setting, motor status monitoring; load shows; overload protection, multiple functions such as wide region stepless speed regulation have reached the intellectuality of medical electric drill control; the monitoring motor running condition effectively prevents irregular workings such as motor overload, stall in real time.
Description of drawings
Fig. 1 is the control principle block diagram of controller of medical electric drill of the present invention;
Fig. 2 is that photoelectricity is isolated and motor-driven control and holding circuit schematic diagram in the controller of medical electric drill of the present invention.
The specific embodiment
The control principle block diagram of electric drill controller as shown in Figure 1; controller comprises microprocessor 1; the input signal circuit; display circuit; motor-driven control and holding circuit 3 and power circuit; the input signal circuit comprises manual switch 10; Foot-controlled switch 9; keyboard 8; motor current detecting circuit 7 and electric moter voltage testing circuit 6; the signal of input signal circuit is input in the microprocessor 1; microprocessor 1 outputs to the state that display circuit shows motor after with information processing according to input signal; simultaneously output signal is isolated the back by photoelectric isolating circuit 2 and is controlled and protect to motor-driven control and 3 pairs of motors of holding circuit; display circuit comprises rotating display lamp 11; load display lamp 12; liquid crystal display 13; to Switching Power Supply 5, control provides power supply with holding circuit 3 to Switching Power Supply 5 to microprocessor 1 output signal to motor-driven by switch power supply voltage regulator circuit 4.
Keyboard 8 is set the rotating speed and the rotating setting of electric drill, and shows the rotating speed of electric drill on LCD liquid crystal display circuit 13, and operation is directly perceived.
But Foot-controlled switch 9 and manual switch 10 equal start and stop electric drills can be realized freely switching of manually control and foot-propelled control, and are easy to operate.
Motor current detecting circuit 7 can detect the motor load size, and alarm when slight overload occurring starts holding circuit 3, reliability height when seriously transshipping.
Electric moter voltage testing circuit 6 is adjusted circuit 4 by microprocessor 1 cooperation supply voltage switch and is regulated algorithm according to intelligence, outputs to motor-driven and controls the rotating speed of controlling electric drill with holding circuit, realizes stepless speed regulation control.
Photoelectric isolating circuit 2 and motor-driven control and holding circuit 3 under the control of microprocessor 1 program, drive and the protection motor.
Photoelectric isolating circuit 2 and motor-driven control and holding circuit 3 schematic diagrams as shown in Figure 2, Q1, Q2, Q3, Q4 signal come in microprocessor 1, under the control of microprocessor 1 program, drive and the protection motor.Multiple protective and observation circuit are realized control reliably, draw with drop-down the protection of MOSFET grid stabilivolt Q1-Q4, the application of resettable fuse F1 on photoelectricity isolation U3, the U4.
In motor-driven control and holding circuit, adopted constantan wire; be that Rx among Fig. 2 and operational amplifier etc. have constituted motor current detecting circuit; deliver to by the detected analogue signal of motor current detecting circuit in the AD passage of microprocessor 1; microprocessor 1 adopts similar " having the hiccups " technology by programming, promptly adopts intervalometer regularly to detect current of electric.When stall, current of electric surpasses sets upper current limit after a period of time, and microprocessor 1 cuts off current of electric by control of control motor-driven and holding circuit 3; enter to suspend and wait for; wait for behind the certain hour starter motor once more, so circulation can solve the stall problem.
Momentary overload allows, but for a long time overload can make equally that the motor feels hot and burns motor.Since there is not temperature sensor in the general motor, the temperature detection inconvenience, but there is corresponding relation in the radiator temperature of motor temperature and MOSFET grid stabilivolt.When promptly transshipping, motor temperature raises, and the radiator temperature of MOSFET also can raise, and adorns a temperature sensor on the radiator side of MOSFE grid stabilivolt T, just can detect the temperature of motor by the radiator temperature that detects drive circuit MOSFET grid stabilivolt.When this temperature surpasses certain limit, send out the overload warning earlier, remind the user should reduce load, if the user ignores warning, load does not reduce, then controller stops motor automatically after a period of time, solves the overload problem.
When motor positive and inverse switches, occur big electric current easily and burn motor.Adopt the software control delay technique among the present invention, promptly when motor when rotating is switched, insert the regular hour time-delay, commutation again after motor stops fully can being avoided the commutation big electric current of appearance and burn motor.
Claims (4)
1. controller of medical electric drill; it is characterized in that; comprise microprocessor; the input signal circuit; display circuit; motor-driven control and holding circuit and power circuit; the input signal circuit comprises manual switch; Foot-controlled switch; keyboard; motor current detecting circuit and electric moter voltage detect; the signal of input signal circuit is input in the microprocessor; microprocessor outputs to display circuit after with information processing according to input signal and shows motor status; simultaneously output signal is isolated the back by photoelectricity and motor is controlled and is protected to motor-driven control and holding circuit; display circuit comprises the rotating display lamp; the load display lamp; liquid crystal display; to Switching Power Supply, control provides power supply with holding circuit to Switching Power Supply to the microprocessor output signal to motor-driven by the switch power supply voltage regulator circuit.
2. according to the described controller of medical electric drill of claim 1; it is characterized in that; described motor current detecting circuit is made of constantan wire and several operational amplifiers; deliver to by the detected analogue signal of motor current detecting circuit in the AD passage of described microprocessor; timing microprocessor detects current of electric, monitoring and protection motor.
3. according to the described controller of medical electric drill of claim 1, it is characterized in that, comprised in described motor-driven control and the holding circuit and isolated jamproof photoelectric isolating circuit, the MOSFET grid stabilivolt and the resettable fuse (F1) of two-fold protection.
4. according to the described controller of medical electric drill of claim 3, it is characterized in that described MOSFET grid stabilivolt is equipped with radiator, on described radiator side one temperature sensor is housed, detect the radiator temperature of MOSFET grid stabilivolt, input microcontroller, monitoring motor overload.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102009861A CN101375807B (en) | 2008-10-10 | 2008-10-10 | Controller of medical electric drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102009861A CN101375807B (en) | 2008-10-10 | 2008-10-10 | Controller of medical electric drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101375807A CN101375807A (en) | 2009-03-04 |
| CN101375807B true CN101375807B (en) | 2010-08-11 |
Family
ID=40419657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102009861A Expired - Fee Related CN101375807B (en) | 2008-10-10 | 2008-10-10 | Controller of medical electric drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101375807B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101579250B (en) * | 2009-06-18 | 2010-08-11 | 北京科技大学 | Intelligent control device of surgical electric drill |
| CN102362812A (en) * | 2011-06-30 | 2012-02-29 | 江苏美德康信息科技有限公司 | Medical hole drilling device |
| CN102629116A (en) * | 2012-04-12 | 2012-08-08 | 曾毅祺 | Control circuit and fluid output control device |
| CN102647128B (en) * | 2012-04-23 | 2014-07-30 | 南京德朔实业有限公司 | Electric tool with function of short-time on-off protection and on-off protection method therefor |
| DE102012106589A1 (en) * | 2012-07-20 | 2014-01-23 | Aesculap Ag | Drive control device and method for a surgical motor system |
| CN104091233A (en) * | 2014-07-01 | 2014-10-08 | 李贞华 | Control system for monitoring and managing massage armchair |
| CN104720866A (en) * | 2015-02-28 | 2015-06-24 | 芜湖锐进医疗设备有限公司 | Control system for medical electric drill controller |
| CN105099357A (en) * | 2015-08-22 | 2015-11-25 | 安徽天柱绿色能源科技有限公司 | Intelligent cleaning controller for solar energy street light |
| CN111631779A (en) * | 2020-05-29 | 2020-09-08 | 北京天星博迈迪医疗器械有限公司 | Medical planing system, control method, speed control chip and storage medium |
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2008
- 2008-10-10 CN CN2008102009861A patent/CN101375807B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101375807A (en) | 2009-03-04 |
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Granted publication date: 20100811 Termination date: 20121010 |