CN104161597B - Pulse electromagnetic field orthodontic treatments instrument - Google Patents

Abstract

The pulse electromagnetic field orthodontic treatment instrument includes a U-shaped solenoid for generating electromagnetic pulses, a temperature sensor for detecting the operating temperature of the U-shaped solenoid, a control system, a power supply, and an insulating housing; the control system consists of a single-chip microcomputer and a Composed of a drive unit connected to the single-chip microcomputer, an input unit and a display unit, the U-shaped solenoid is connected to the drive unit, the temperature sensor is installed on the U-shaped solenoid and connected to the single-chip microcomputer, the power supply is a rechargeable battery, Used to supply power to the single-chip microcomputer, drive unit, display unit and temperature sensor; the single-chip microcomputer and drive unit in the power supply and control system are installed in the inner cavity of the insulating housing, and the input unit and display unit in the control system are installed on the outer wall of the insulating housing .

Description

Pulse electromagnetic field orthodontic treatment instrument

technical field

The invention belongs to dental treatment instruments, in particular to an instrument for accelerating tooth movement in orthodontic treatment.

Background technique

Orthodontics is the process of aligning irregular teeth through correction, that is, the orthodontic system exerts force on the teeth to be corrected to complete the movement of the teeth to achieve the neat arrangement of the teeth without damaging the health of the teeth and their surrounding tissues. Existing orthodontics mainly use stainless steel brackets, ceramic brackets and other aligners to apply mechanical force to the teeth to arrange the teeth neatly. However, for teeth that are difficult to move or severely twisted, only stainless steel brackets, ceramics Brackets and other orthodontic appliances apply force, and the movement speed of the completed teeth is very slow, resulting in prolonged orthodontic time. Therefore, how to effectively accelerate tooth movement while ensuring tissue health during orthodontic treatment has always been a concern of doctors and patients.

Contents of the invention

The purpose of the present invention is to provide a pulse electromagnetic field orthodontic treatment instrument, so that the magnetic force generated by the instrument can accelerate the movement of difficult-to-move teeth, shorten the course of orthodontic treatment, and achieve better treatment effects.

The pulse electromagnetic field dental orthodontic treatment instrument of the present invention includes a U-shaped solenoid for generating electromagnetic pulses, a temperature sensor for detecting the working temperature of the U-shaped solenoid, a control system, a power supply and an insulating housing; the control system It consists of a single-chip microcomputer and a drive unit connected to the single-chip microcomputer, an input unit and a display unit. The U-shaped solenoid is connected to the drive unit. The temperature sensor is installed on the U-shaped solenoid and connected to the single-chip microcomputer. The input unit is used In order to send instructions to the single-chip microcomputer that require the magnetic induction intensity and electromagnetic field loading time generated by the U-shaped solenoid, the single-chip microcomputer controls the drive unit to provide the required magnetic induction intensity for the U-shaped solenoid according to the instruction of the input unit and the temperature information input by the temperature sensor. The alternating current or cut off alternating current enters the path of the U-shaped solenoid, and the display unit is used to display the information output by the single-chip microcomputer; the power supply is a rechargeable battery, which is used to supply power to the single-chip microcomputer, the drive unit, the display unit and the temperature sensor; the power supply and the control system The single-chip microcomputer and drive unit in the control system are installed in the inner cavity of the insulating housing, and the input unit and display unit in the control system are installed on the outer wall of the insulating housing.

In the pulse electromagnetic field orthodontic treatment instrument of the present invention, the adjustment range of the magnetic induction intensity generated by the U-shaped solenoid is 0-30mT, and the user can set the required magnetic induction intensity through the input unit as required.

The pulse electromagnetic field dental orthodontic treatment instrument of the present invention, the working temperature of the U-shaped solenoid is from the natural temperature of the patient's mouth to 42°C, if the temperature detected by the temperature sensor exceeds 42°C, the single-chip microcomputer will control the drive unit to cut off the AC current The path of the U-shaped solenoid makes the U-shaped solenoid stop working and sends an alarm signal. The alarm signal can be sent through the display unit, or a working status indicator light or a buzzer connected to the single-chip microcomputer can be set to alarm.

The pulse electromagnetic field dental orthodontic treatment instrument of the present invention, its U-shaped solenoid is made of copper or copper alloy, and the U-shaped solenoid and temperature sensor assembly is covered by a medical plastic tube, and the medical plastic tube is provided with a Chucks positioned on the teeth. The height h of the U-shaped solenoid and the temperature sensor assembly covered by the medical plastic tube is 25mm-30mm, so as to be suitable for placement in the oral cavity.

The pulse electromagnetic field dental orthodontic treatment instrument of the present invention, the driving unit in its control system includes a voltage regulation circuit, a photoelectric isolation circuit, a switch circuit, an RC oscillation circuit and a cut-off circuit, and the voltage regulation circuit is used to input the voltage of the power supply Converted into the working voltage of the drive unit, the photoelectric isolation circuit is used to receive the control signal of the single-chip microcomputer, and turn on or off the switch circuit according to the control signal of the single-chip microcomputer. Provide alternating current to generate the required magnetic induction intensity, the RC oscillating circuit provides compensation current to the U-shaped solenoid when the switch circuit is closed (plays a role in stabilizing the amplitude), and the cut-off circuit is used to prevent the current backflow generated by the RC oscillating circuit to the regulator circuit.

A preferred technical solution of the above-mentioned driving unit is: the voltage regulating circuit is composed of an integrated block of model LM317 and its peripheral circuit, the photoelectric isolation circuit is composed of a photosensitive coupler of model TLP521, and the switch circuit is composed of a triode VT1 and the triode A resistor R6 connected in parallel, a diode VD3 connected in parallel with the triode, and a resistor R7 connected in series with the above-mentioned resistor R6, the RC oscillation circuit is composed of two resistors R8 and R9, and a capacitor C7 connected in parallel, and the capacitor C7 is located between two Between two resistors R8 and R9, the cut-off circuit is composed of two diodes VD4 and VD5 connected in series.

In the pulsed electromagnetic field dental orthodontic treatment instrument of the present invention, the single-chip microcomputer is preferably an eight-bit single-chip microcomputer, and the display unit is preferably an LED display. The input unit can be a touch screen or a key.

The use mode of the pulse electromagnetic field orthodontic treatment instrument of the present invention: when in use, put the U-shaped solenoid and the temperature sensor assembly covered by the medical plastic tube into the patient's mouth and place it at the tooth to be corrected (the The relative positional relationship between the assembly and the teeth to be corrected is shown in Figure 1), and then the power of the instrument is turned on, the magnetic induction intensity and the loading time of the electromagnetic field are set, and then the instrument is started to work. During the working process, if the temperature of the U-shaped solenoid exceeds the limited maximum temperature, the instrument will send out an alarm signal and automatically stop the electromagnetic field loading. After use, the power supply is turned off, and the U-shaped solenoid and the temperature sensor assembly covered by the medical plastic tube are taken out from the patient's mouth.

The present invention has the following beneficial effects:

1. The pulse electromagnetic field orthodontic treatment instrument of the present invention provides a new force for the movement of the teeth to be corrected - magnetic force, which can increase the cell activity in each phase of the tooth movement process, so it will not damage the teeth And its surrounding tissues, and can accelerate the movement of teeth, play a role in shortening the course of treatment.

2. The pulse electromagnetic field dental orthodontic treatment instrument of the present invention uses a U-shaped solenoid as a pulse electromagnetic field generator, and the U-shaped solenoid and the temperature sensor are covered by a medical plastic tube, and the medical plastic tube is provided with a useful The collet is positioned on the tooth, so it is not only convenient for installation and positioning, but also easy to adjust the arc of the bottom of the U-shaped solenoid to adapt to different sizes and shapes of the corrected teeth.

3. The pulse electromagnetic field orthodontic treatment instrument of the present invention is equipped with a temperature sensor. During the working process, if the temperature of the U-shaped solenoid exceeds the limited maximum temperature, the instrument will send an alarm signal and automatically stop the electromagnetic field loading, so it is safe to use .

4. The pulse electromagnetic field dental orthodontic treatment instrument of the present invention has a simple structure, is easy to process and manufacture, and thus has low cost and is easy to popularize and use.

Description of drawings

Fig. 1 is a structural schematic diagram of the pulse electromagnetic field dental orthodontic treatment instrument of the present invention, and this figure also shows the placement position of the U-shaped solenoid and the temperature sensor assembly covered by the medical plastic tube during use ;

Fig. 2 is the block diagram of the control system in the pulse electromagnetic field dental orthodontic treatment instrument of the present invention;

Fig. 3 is a structural block diagram of the drive unit in the control system;

FIG. 4 is an electrical schematic diagram of the drive unit;

Fig. 5 is a schematic diagram of the installation of the display unit and the input unit on the outer wall of the insulating housing in the control system.

In the figure, 1: U-shaped solenoid, 2: temperature sensor, 3: control system, 3-1: microcontroller, 3-2: drive unit, 3-2-1: voltage regulating circuit, 3-2-2: Photoelectric isolation circuit, 3-2-3: switch circuit, 3-2-4: RC oscillation circuit, 3-2-5: cut-off circuit, 3-3: input unit, 3-3-1: magnetic induction and loading time Setting key, 3-3-2: Magnetic induction intensity and loading time adjustment key, 3-4: Display unit, 4: Insulation housing, 5: Power supply, 6: Medical plastic tube, 7: Chuck, 8: Corrected Teeth, 9: power switch, 10: power indicator light, 11; working status indicator light.

detailed description

The pulse electromagnetic field dental orthodontic treatment instrument of the present invention will be further described below in conjunction with the accompanying drawings.

In the present embodiment, the pulse electromagnetic field dental orthodontic treatment instrument is as shown in Figure 1, comprises the U-shaped solenoid 1 that is used to generate electromagnetic pulse, the temperature sensor 2 that detects U-shaped solenoid 1 working temperature, control system 3, Power supply 5 and insulating casing 4. Control system 3 as shown in Figure 2, is made up of single-chip microcomputer 3-1 and drive unit 3-2, input unit 3-3 and display unit 3-4 respectively connected with single-chip microcomputer; Single-chip microcomputer (produced by Shenzhen Hongjing Technology Co., Ltd.), display unit 3-4 is an LED display (commercially available), and input unit includes magnetic induction intensity and loading time setting key 3-3-1, magnetic induction intensity and loading time adjustment key 3 -3-2 (see Figure 5). As shown in Figure 3, the drive unit 3-2 includes a voltage regulation circuit 3-2-1, a photoelectric isolation circuit 3-2-2, a switch circuit 3-2-3, an RC oscillation circuit 3-2-4 and a cut-off circuit 3 -2-5; The specific structure of the above-mentioned circuits is shown in Figure 4. The voltage regulating circuit is composed of a LM317 integrated block (produced by Anmei Forest Semiconductor Co., Ltd., Italy) and its peripheral circuits. The 1 pin of the LM317 integrated block is adjustable pin 2 is the input terminal, which is connected to the power supply, and pin 3 is the output terminal. The peripheral circuit includes a voltage stabilizing circuit at the input end composed of capacitor C1, capacitor C2 and diode VD1, and a circuit composed of resistor R1, diode VD2 and capacitor C3. The protection circuit of the adjustment terminal and the output terminal, the filter circuit of the adjustable terminal and the output terminal composed of C4, the voltage regulation filter circuit of the adjustable terminal and the output terminal composed of resistor R2, resistor R3, resistor R4 and capacitor C6, and the adjustable filter circuit of the output terminal composed of capacitor C5 Voltage-stabilizing circuit between terminal and output terminal; the photoelectric isolation circuit is composed of a photosensitive coupler model TLP521 (produced by Toshiba Corporation of Japan). Pin 1 of the TLP521 photosensitive coupler is connected to the single-chip microcomputer, and three pins are connected to the switch circuit. The switch circuit consists of transistors VT1, A resistor R6 connected in parallel with the triode, a diode VD3 connected in parallel with the triode, and a resistor R7 connected in series with the resistor R6 are composed, and the resistor R7 is connected in series with a U-shaped solenoid (the U-shaped solenoid is represented by HL1 in FIG. 4 ). Even; the RC oscillation circuit is composed of resistor R8, resistor R9 and capacitor C7 connected in parallel, the capacitor C7 is located between resistor R8 and resistor R9, and the cut-off circuit is composed of diode VD4 and diode VD5 connected in series. When the STC89C52 single-chip microcomputer outputs a high level to pin 1 of the TLP521 photosensitive coupler, pin 3 and pin 4 of the TLP521 photosensitive coupler are turned on, and the upper and lower poles of the driving transistor VT1 are turned on, and the current passes through the resistors R6 and R7 to enter the U-shaped The solenoid forms an analog magnetic field. When the STC89C52 MCU outputs a low level to pin 1 of the TLP521 photosensitive coupler, the 3 and 4 pins of the TLP521 photosensitive coupler are disconnected, and the triode VT1 is closed, stopping the U-shaped solenoid. Provide alternating current, when the triode VT1 is closed, the RC oscillating circuit provides compensation current to the U-shaped solenoid to stabilize the amplitude, and the cut-off circuit is used to prevent the current generated by the RC oscillating circuit from flowing back to the voltage regulating circuit.

The U-shaped solenoid 1 is made of copper alloy. The adjustment range of the magnetic induction of the U-shaped solenoid 1 is 0-30mT. The working temperature is from the natural temperature of the patient's mouth to 42°C. The temperature sensor 2 is a miniature temperature sensor whose model is TS100-4DWR41AA. Sensor (produced by Shanghai Qizheng Electronics Co., Ltd.), the temperature sensor is installed on the U-shaped solenoid 1 and connected with the STC89C52 microcontroller. The combination of the U-shaped solenoid 1 and the temperature sensor 2 is covered with a polyethylene tube 6 that is easy to bend. The height series of U-shaped solenoid and temperature sensor combination are 25mm, 28mm and 30mm. The power supply 5 is a rechargeable lithium battery (5V), which is used to supply power to the single-chip microcomputer 3-1, the drive unit 3-2, the display unit 3-4 and the temperature sensor 2.

The pulsed electromagnetic field dental orthodontic treatment instrument in the present embodiment is provided with power indicator light 10 and working state indicator light 11, and power supply indicator light 10 is connected with power supply, is used for displaying whether instrument is powered on, and working state indicator light 11 is connected with single-chip microcomputer , used to send an alarm signal.

In the present embodiment, the insulating housing is made of plastic, power switch 9, power indicator light 10, working status indicator light 11, magnetic induction intensity and loading time setting key 3-3-1, magnetic induction intensity and loading time adjustment key 3- 3-2, the LED display screen 3-4 is installed on the outer wall of the insulating housing 4, as shown in Figure 5; lumen.

Claims (10)

1. a pulse electromagnetic field orthodontic treatments instrument, it is characterised in that include the U-shaped solenoid for producing electromagnetic pulse (1), the detection temperature sensor (2) of U-shaped solenoid (1) operating temperature, control system (3), power supply (5) and insulation Housing (4)；

Driver element (3-2) that described control system (3) by single-chip microcomputer (3-1) and is connected with single-chip microcomputer respectively, input block (3-3) forming with display unit (3-4), described U-shaped solenoid (1) is connected with driver element (3-2), described temperature Sensor (2) is arranged on U-shaped solenoid and is connected with single-chip microcomputer, and input block (3-3) is for sending requirement to single-chip microcomputer Magnetic induction that U-shaped solenoid produces and the instruction of electromagnetic field load time, single-chip microcomputer is according to the instruction of input block and temperature It is that U-shaped solenoid (1) provides the magnetic induction required by producing strong that the temperature information of sensor input controls driver element (3-2) The alternating current of degree or block alternating current and enter the solenoidal path of U-shaped, display unit (3-4) is for showing the letter that single-chip microcomputer exports Breath；

Described power supply (5) is rechargeable battery, for single-chip microcomputer (3-1), driver element (3-2), display unit (3-4) and Temperature sensor (2) is powered；

Single-chip microcomputer (3-1) in power supply (5) and control system, driver element (3-2) are arranged on the inner chamber of insulation shell (4), Input block (3-3) in control system and display unit (3-4) are arranged on the outer wall of insulation shell (4).

Pulse electromagnetic field orthodontic treatments instrument the most according to claim 1, it is characterised in that U-shaped solenoid (1) produces The range of accommodation of magnetic induction be 0～30mT, U-shaped solenoid (1) operating temperature is that patient oral cavity natural temperature is to 42 DEG C.

Pulse electromagnetic field orthodontic treatments instrument the most according to claim 1 or claim 2, it is characterised in that U-shaped solenoid copper Or copper alloy, U-shaped solenoid and temperature sensor assembly are coated with by medical plastic pipe (6), described medical plastic pipe (6) On be provided with for the chuck (7) in the upper location of tooth (8).

Pulse electromagnetic field orthodontic treatments instrument the most according to claim 3, it is characterised in that wrapped by medical plastic pipe (6) The U-shaped solenoid covered and the height (h) of temperature sensor assembly are 25mm～30mm.

Pulse electromagnetic field orthodontic treatments instrument the most according to claim 1 or claim 2, it is characterised in that driver element (3-2) Including regulating circuit (3-2-1), photoelectric isolating circuit (3-2-2), on-off circuit (3-2-3), RC oscillating circuit (3-2-4) With cut-off circuit (3-2-5), described regulating circuit (3-2-1) for being converted into the work of driver element by the voltage that power supply inputs Voltage, described photoelectric isolating circuit (3-2-2) is for receiving the control signal of single-chip microcomputer, and the control signal according to single-chip microcomputer will On-off circuit on and off, provides to U-shaped solenoid when described on-off circuit (3-2-3) is in the conduction state required by producing The alternating current of magnetic induction, described RC oscillating circuit (3-2-4) provides to U-shaped solenoid when on-off circuit cuts out and mends Repaying electric current, the current reflux that described cut-off circuit (3-2-5) produces for stoping RC oscillating circuit is to regulating circuit.

Pulse electromagnetic field orthodontic treatments instrument the most according to claim 3, it is characterised in that driver element (3-2) includes Regulating circuit (3-2-1), photoelectric isolating circuit (3-2-2), on-off circuit (3-2-3), RC oscillating circuit (3-2-4) and cut Only circuit (3-2-5), described regulating circuit (3-2-1) is used for being converted into the voltage that power supply inputs the running voltage of driver element, Described photoelectric isolating circuit (3-2-2) is for receiving the control signal of single-chip microcomputer, and the control signal according to single-chip microcomputer will switch electricity Road on and off, provides the magnetic strength required by producing to U-shaped solenoid when described on-off circuit (3-2-3) is in the conduction state Answering the alternating current of intensity, described RC oscillating circuit (3-2-4) provides to U-shaped solenoid when on-off circuit cuts out and compensates electric current, The current reflux that described cut-off circuit (3-2-5) produces for stoping RC oscillating circuit is to regulating circuit.

Pulse electromagnetic field orthodontic treatments instrument the most according to claim 4, it is characterised in that driver element (3-2) includes Regulating circuit (3-2-1), photoelectric isolating circuit (3-2-2), on-off circuit (3-2-3), RC oscillating circuit (3-2-4) and cut Only circuit (3-2-5), described regulating circuit (3-2-1) is used for being converted into the voltage that power supply inputs the running voltage of driver element, Described photoelectric isolating circuit (3-2-2) is for receiving the control signal of single-chip microcomputer, and the control signal according to single-chip microcomputer will switch electricity Road on and off, provides the magnetic strength required by producing to U-shaped solenoid when described on-off circuit (3-2-3) is in the conduction state Answering the alternating current of intensity, described RC oscillating circuit (3-2-4) provides to U-shaped solenoid when on-off circuit cuts out and compensates electric current, The current reflux that described cut-off circuit (3-2-5) produces for stoping RC oscillating circuit is to regulating circuit.

Pulse electromagnetic field orthodontic treatments instrument the most according to claim 5, it is characterised in that regulating circuit by model is The integrated package of LM317 and peripheral circuit composition thereof, photoelectric isolating circuit is made up of the photosensitive bonder that model is TLP521, opens The diode that powered-down route one is in parallel with this audion in parallel with this audion for audion VT1 a resistance R6 VD3 and the resistance R7 composition connected with above-mentioned resistance R6, RC oscillating circuit is by two resistance R8 and R9, an electric capacity C7 is connected in parallel composition, described electric capacity C7 between resistance R8, resistance R9, cut-off circuit by two diode VD4, VD5 is connected in series composition.

Pulse electromagnetic field orthodontic treatments instrument the most according to claim 6, it is characterised in that regulating circuit by model is The integrated package of LM317 and peripheral circuit composition thereof, photoelectric isolating circuit is made up of the photosensitive bonder that model is TLP521, opens The diode that powered-down route one is in parallel with this audion in parallel with this audion for audion VT1 a resistance R6 VD3 and the resistance R7 composition connected with above-mentioned resistance R6, RC oscillating circuit is by two resistance R8 and R9, an electric capacity C7 is connected in parallel composition, described electric capacity C7 between resistance R8, resistance R9, cut-off circuit by two diode VD4, VD5 is connected in series composition.

Pulse electromagnetic field orthodontic treatments instrument the most according to claim 1 or claim 2, it is characterised in that single-chip microcomputer (3-1) is 8-bit microcontroller, display unit (3-4) is LED display.