CN111658210A - Small-sized hand-held comfortable dental scaler - Google Patents
Small-sized hand-held comfortable dental scaler Download PDFInfo
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- CN111658210A CN111658210A CN202010515957.5A CN202010515957A CN111658210A CN 111658210 A CN111658210 A CN 111658210A CN 202010515957 A CN202010515957 A CN 202010515957A CN 111658210 A CN111658210 A CN 111658210A
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- ultrasonic transducer
- dental scaler
- miniaturized
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- power
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- 239000003990 capacitor Substances 0.000 claims description 18
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 238000010223 real-time analysis Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 206010044029 Tooth deposit Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000006558 Dental Calculus Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/20—Power-driven cleaning or polishing devices using ultrasonics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B3/00—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention relates to a miniaturized handheld comfortable dental scaler which solves the technical problems of large volume, high cost, inconvenience for personal use due to the fact that a working tip needs water cooling and can be used by trained personnel during working.
Description
Technical Field
The invention relates to the field of dental scalers, in particular to a small-sized hand-held comfortable dental scaler.
Background
The ultrasonic scaler adopts a handheld device which transmits energy required by the dental operation in a mechanical transmission mode. The power source is divided into pneumatic power and electric power. The rotary instrument clamp is used for clamping rotary instruments such as a machine needle, a dental drill and a dental file and driving the rotary instruments to move so as to realize dental operation operations such as cutting, grinding, cutting and drilling.
The prior ultrasonic dental scaler utilizes ultrasonic vibration and water mist flushing to remove dental calculus and tartar. The dental scaler in the prior art is large in size and high in cost, a working tip needs water cooling during working, and the dental scaler can be used by trained personnel and is inconvenient for individuals to use. The hand-held tooth cleaner has large volume, small power, inconvenient use and low efficiency. The prior hand-held tooth cleaner has the technical defects that: (1) the frequency generating device is controlled by the universal single chip microcomputer to generate ultrasonic waves to drive the ultrasonic transducer to work, and the circuit of the part is large in size and not beneficial to miniaturization of the handheld scaler. (2) Due to the absence of the water cooling device, the heating of the ultrasonic transducer can cause the deviation of the resonance point, and the deviation of the resonance point can cause the heating and the low efficiency of the equipment. In order to solve the second problem, a scheme of adding a phase tracking circuit is adopted at present, and the circuit volume and the cost are further increased.
Disclosure of Invention
The technical problem to be solved by the invention is the technical problem of large volume in the prior art. To provide a new miniaturized hand-held comfortable dental scaler having a small volume.
In order to solve the technical problems, the technical scheme is as follows:
a miniaturized handheld comfortable dental scaler comprises an MCU module with an NCO frequency control unit for directly driving a power amplification module, wherein the power amplification module is connected with an ultrasonic transducer.
The invention omits a frequency generating device of a traditional circuit and reduces the volume.
In the above scheme, for optimization, further, the ultrasonic transducer is connected to an NCO frequency control unit in the MCU module through a power feedback unit to realize resonance point tracking, and realize the operation of the resonance point of the ultrasonic transducer. The hardware scheme of phase tracking is omitted, cost and space are saved, and miniaturization of equipment is facilitated. Since the ultrasonic transducer generates heat to cause resonance point shift, and the resonance point shift causes equipment heating and low efficiency, the scheme of the invention can be optimized by tracking the resonance point.
Furthermore, the power feedback unit controls the input voltage of the ultrasonic transducer through the MCU module at the same time, so that the power of the ultrasonic transducer is maintained within a preset power range. The efficiency is guaranteed, and meanwhile, the work tip does not generate heat which can hurt a human body under the waterless condition.
Further, the power feedback unit comprises an integrated circuit LMV611, wherein the 1 st pin of the integrated circuit LMV611 is connected to the HV signal through a resistor R9 and is also connected to a capacitor C4; the 2 nd pin is grounded; the 3 rd pin is connected with a resistor R1, a resistor R2 and a capacitor C22 in parallel, the other end of the resistor R1 and the other end of the capacitor C22 are grounded, the other end of the resistor R2 is connected to the 4 th pin of the integrated circuit LMV611 and used as AN OpPut end, the OpPut end is connected with a resistor R17 and a capacitor C20 in parallel, the other end of the resistor R17 is connected with a W _ AN signal end, and the other end of the capacitor C20 is grounded; the 5 th section of the integrated circuit LMV611 is connected with a 5V power supply end, and the 5V power supply end is connected with a capacitor C10 to the ground; the HV signal terminal controls an ultrasonic transducer input voltage.
Further, the power supply of the miniaturized hand-held comfortable dental scaler is completed by a power supply module comprising an MCU module and a portable battery.
Further, the portable battery is a detachable battery.
Furthermore, the ultrasonic transducer is provided with a miniature camera device for collecting tooth images, the miniature camera device is connected with the MCU module, and the wireless communication module arranged in the MCU module transmits image data to the computer host for real-time viewing or real-time analysis.
Further, the housing of the miniature camera device is made of edible grade plastic.
Further, the ultrasonic transducer is fixed by a shapeable flexible arm.
The invention has the beneficial effects that: the invention utilizes the power feedback loop to search the frequency in a small range near the resonance point, ensures that the ultrasonic transducer always works at the resonance point and ensures that the machine always works at the maximum efficiency. The phase tracking module of the traditional scheme is omitted, the cost and the volume are reduced, and if no phase tracking exists, the machine efficiency is low, and the heat is serious. The MCU with the NCO numerically controlled oscillator function is used for generating ultrasonic waves, a frequency generator in the traditional scheme is omitted, and the size and the cost are reduced. Compared with the traditional scheme, the two key technologies reduce the volume and the cost by 30% at least and realize the miniaturization of the handheld scaler. In the field of technology, miniaturization has always been a major concern in the industry. Based on the design concept of miniaturization, the invention omits the scheme of locking the frequency by using a phase-locked loop in the traditional scheme and locks the resonance point by using a small-range dynamic frequency searching technology during working. The method needs special treatment on algorithm and control, and the comfort level of the user is greatly reduced. By using the method, the space and the cost of a phase-locked loop circuit are saved, thereby realizing the miniaturization of products. For users, the product is smaller, lighter and cheap.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic view of a miniaturized hand-held comfortable dental scaler according to embodiment 1.
Fig. 2 is a schematic diagram of a power feedback unit package in embodiment 1.
Fig. 3 is a schematic diagram of a power module in embodiment 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The present embodiment provides a miniaturized hand-held comfortable dental scaler, as shown in fig. 1, which comprises an MCU module direct-drive power amplification module having an NCO frequency control unit, the power amplification module being connected to an ultrasonic transducer.
The invention omits a frequency generating device of a traditional circuit and reduces the volume.
Preferably, the ultrasonic transducer is connected to an NCO frequency control unit in the MCU module through a power feedback unit to realize resonance point tracking and realize the resonance point work of the ultrasonic transducer. The hardware scheme of phase tracking is omitted, cost and space are saved, and miniaturization of equipment is facilitated. Since the ultrasonic transducer generates heat to cause resonance point shift, and the resonance point shift causes equipment heating and low efficiency, the scheme of the invention can be optimized by tracking the resonance point.
Preferably, the power feedback unit controls the input voltage of the ultrasonic transducer through the MCU module at the same time, so that the power of the ultrasonic transducer is maintained within a preset power range. The efficiency is guaranteed, and meanwhile, the work tip does not generate heat which can hurt a human body under the waterless condition.
Preferably, as shown in fig. 2, the power feedback unit comprises an integrated circuit LMV611, the 1 st pin of the integrated circuit LMV611 is connected to the HV signal through a resistor R9 while being connected to a capacitor C4; the 2 nd pin is grounded; the 3 rd pin is connected with a resistor R1, a resistor R2 and a capacitor C22 in parallel, the other end of the resistor R1 and the other end of the capacitor C22 are grounded, the other end of the resistor R2 is connected to the 4 th pin of the integrated circuit LMV611 and used as AN OpPut end, the OpPut end is connected with a resistor R17 and a capacitor C20 in parallel, the other end of the resistor R17 is connected with a W _ AN signal end, and the other end of the capacitor C20 is grounded; the 5 th section of the integrated circuit LMV611 is connected with a 5V power supply end, and the 5V power supply end is connected with a capacitor C10 to the ground; the HV signal terminal controls an ultrasonic transducer input voltage.
Specifically, the power supply of the miniaturized hand-held comfortable dental scaler is completed by a power module comprising an MCU module and a portable battery. The detailed circuit diagram of the power supply module is shown in fig. 3.
Preferably, to improve the sustained use of the invention, the battery is designed as a detachable battery.
Preferably, in order to understand and analyze the conditions of the mouth and teeth in real time. The ultrasonic transducer is provided with a miniature camera device for collecting tooth images, the miniature camera device is connected with the MCU module, and the wireless communication module arranged in the MCU module transmits image data to the computer host for real-time viewing or real-time analysis.
Preferably, in order to reduce the influence of the equipment on human health, the housing of the miniature camera device is made of edible grade plastic.
Preferably, to improve the applicability, the ultrasound transducer is fixed by a shapeable flexible arm.
The remaining undisclosed portions of this embodiment utilize existing hand-held scaler designs. In the embodiment, the charging state is firstly judged through the high-speed MCU, and if the charging is carried out, the charging mode or the charging working mode is entered; otherwise, entering a standby mode or an operating mode. After starting up, a proper frequency searching voltage is given to search frequency. After the resonant frequency is searched, the voltage is adjusted in real time through the power feedback circuit, the working current is constant, the power is small when no load is carried, and the power is increased when load is carried. Meanwhile, every time a certain time passes, frequency searching is carried out in a very small frequency range, and the resonance point is adjusted by utilizing data fed back by the power feedback circuit. On the premise of ensuring that the power of the working tip does not change greatly, the working tip always works at a resonance point. In the case of no water cooling, the ultrasonic transducer may generate heat to cause a large shift of the resonance point, and if the resonance point is not tracked, the efficiency of the ultrasonic transducer may be reduced.
Although the illustrative embodiments of the present invention have been described above to enable those skilled in the art to understand the present invention, the present invention is not limited to the scope of the embodiments, and it is apparent to those skilled in the art that all the inventive concepts using the present invention are protected as long as they can be changed within the spirit and scope of the present invention as defined and defined by the appended claims.
Claims (9)
1. The utility model provides a comfortable scaler is handed to miniaturized which characterized in that: the miniaturized handheld comfortable dental scaler comprises an MCU module with an NCO frequency control unit for directly driving a power amplification module, and the power amplification module is connected with an ultrasonic transducer.
2. The miniaturized hand-held comfortable dental scaler according to claim 1, further comprising: the ultrasonic transducer is connected to an NCO frequency control unit in the MCU module through a power feedback unit to realize resonance point tracking and realize the resonance point work of the ultrasonic transducer.
3. The miniaturized hand-held comfortable dental scaler according to claim 2, further comprising: the power feedback unit controls the input voltage of the ultrasonic transducer through the MCU module at the same time, so that the power of the ultrasonic transducer is maintained within a preset power range.
4. The miniaturized hand-held comfortable dental scaler according to claim 1, further comprising: the power feedback unit comprises an integrated circuit LMV611, wherein the 1 st pin of the integrated circuit LMV611 is connected to an HV signal through a resistor R9 and is also connected with a capacitor C4; the 2 nd pin is grounded; the 3 rd pin is connected with a resistor R1, a resistor R2 and a capacitor C22 in parallel, the other end of the resistor R1 and the other end of the capacitor C22 are grounded, the other end of the resistor R2 is connected to the 4 th pin of the integrated circuit LMV611 and used as AN OpPut end, the OpPut end is connected with a resistor R17 and a capacitor C20 in parallel, the other end of the resistor R17 is connected with a W _ AN signal end, and the other end of the capacitor C20 is grounded; the 5 th section of the integrated circuit LMV611 is connected with a 5V power supply end, and the 5V power supply end is connected with a capacitor C10 to the ground; the HV signal terminal controls an ultrasonic transducer input voltage.
5. The miniaturized hand-held comfortable dental scaler according to any one of claims 1-4, wherein: the power supply of the miniaturized handheld comfortable dental scaler is completed by a power supply module comprising an MCU module and a portable battery.
6. The miniaturized hand-held comfortable dental scaler according to claim 5, further comprising: the portable battery is a detachable battery.
7. The miniaturized hand-held comfortable dental scaler according to claim 5, further comprising: the ultrasonic transducer is provided with a miniature camera device for collecting tooth images, the miniature camera device is connected with the MCU module, and the wireless communication module arranged in the MCU module transmits image data to the computer host for real-time viewing or real-time analysis.
8. The miniaturized hand-held comfortable dental scaler according to claim 7, wherein: the housing of the miniature camera device is made of edible grade plastic.
9. The miniaturized hand-held comfortable dental scaler according to claim 7, wherein: the ultrasonic transducer is fixed by a shapeable flexible arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010515957.5A CN111658210A (en) | 2020-06-09 | 2020-06-09 | Small-sized hand-held comfortable dental scaler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010515957.5A CN111658210A (en) | 2020-06-09 | 2020-06-09 | Small-sized hand-held comfortable dental scaler |
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| CN111658210A true CN111658210A (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010515957.5A Pending CN111658210A (en) | 2020-06-09 | 2020-06-09 | Small-sized hand-held comfortable dental scaler |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101468347A (en) * | 2007-12-28 | 2009-07-01 | 北京奥麦特科技有限公司 | Automatic frequency tracking method of supersonic transducer and system thereof |
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| CN109365250A (en) * | 2018-10-26 | 2019-02-22 | 重庆大学 | A kind of high-frequency transducer's frequency locking implementation method |
| CN109974841A (en) * | 2019-04-10 | 2019-07-05 | 广东省计量科学研究院（华南国家计量测试中心） | A kind of standard ultrasound power source |
| CN110537958A (en) * | 2019-07-29 | 2019-12-06 | 华南理工大学 | ultrasonic scalpel system based on frequency and power tracking and control method thereof |
| CN210447252U (en) * | 2019-07-03 | 2020-05-05 | 广州蓝鼎医疗器械有限公司 | Novel periodontal ultrasonic therapeutic instrument's control circuit |
-
2020
- 2020-06-09 CN CN202010515957.5A patent/CN111658210A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101468347A (en) * | 2007-12-28 | 2009-07-01 | 北京奥麦特科技有限公司 | Automatic frequency tracking method of supersonic transducer and system thereof |
| CN101540476A (en) * | 2009-04-07 | 2009-09-23 | 吉林大学 | Constant current driver of digital semiconductor laser |
| CN202041811U (en) * | 2011-05-19 | 2011-11-16 | 邹清平 | Direct digital synthesizer (DDS) signal source based on control of signal chip microcomputer |
| CN202586790U (en) * | 2012-02-10 | 2012-12-05 | 江南大学 | Miniwatt high frequency ultrasonic power supply structure |
| CN104584002A (en) * | 2012-06-05 | 2015-04-29 | 英特尔公司 | Reconfigurable variable length FIR filters for optimizing performance of digital repeater |
| US20160360602A1 (en) * | 2013-10-23 | 2016-12-08 | Perkinelmer Health Sciences, Inc. | Oscillator generators and methods of using them |
| CN105499109A (en) * | 2015-12-23 | 2016-04-20 | 中国科学院声学研究所东海研究站 | Ultrasonic anti-scaling and descaling control system |
| WO2017189702A1 (en) * | 2016-04-27 | 2017-11-02 | Perkinelmer Health Sciences, Inc. | Oscillator generators and methods of using them |
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| CN110537958A (en) * | 2019-07-29 | 2019-12-06 | 华南理工大学 | ultrasonic scalpel system based on frequency and power tracking and control method thereof |
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Application publication date: 20200915 |