阅读说明：本技术 具有辅助测距定深功能的牙科手机 (Dental handpiece with auxiliary distance measuring and depth fixing functions ) 是由 熊宇 黄葳 于 2019-09-29 设计创作，主要内容包括：本发明涉及牙科设备技术领域,具体为具有辅助测距定深功能的牙科手机,包括手机本体,所述手机本体包括机头,所述机头上设有车针,还包括测距模块、控制模块和通信模块,所述测距模块用于检测机头到牙面的距离,所述控制模块与通信模块以及测距模块均信号连接；所述控制模块用于根据测距模块的检测结果计算车针切割或进入牙齿的深度并将计算结果通过通信模块发送至上位机。本发明提供的具有辅助测距定深功能的牙科手机,在窝洞制备、根管治疗、桩道预备和固定修复体的基牙预备等牙科复杂治疗中可以快速准确地指示和确定车针尖端切削或进入牙体组织的深度,为数字化技术引导下的牙科精准操作提供数据基础。(The invention relates to the technical field of dental equipment, in particular to a dental handpiece with a function of assisting in distance measurement and depth setting, which comprises a handpiece body, a distance measurement module, a control module and a communication module, wherein the handpiece body comprises a handpiece, a needle is arranged on the handpiece, the distance measurement module is used for detecting the distance from the handpiece to a tooth surface, and the control module is in signal connection with the communication module and the distance measurement module; the control module is used for calculating the depth of the cutting or tooth entering of the needle according to the detection result of the distance measuring module and sending the calculation result to the upper computer through the communication module. The dental handpiece with the auxiliary ranging and depth-fixing functions provided by the invention can rapidly and accurately indicate and determine the depth of the tip of the lathe needle for cutting or entering the dental tissue in complex dental treatments such as cavity preparation, root canal treatment, abutment preparation for fixing a prosthesis and the like, and provides a data base for precise dental operation guided by a digital technology.)

1. dental handpiece with supplementary range finding depthkeeping function, including the cell-phone body, the cell-phone body includes the aircraft nose, be equipped with car needle on the aircraft nose, its characterized in that: the device comprises a machine head, a distance measuring module, a control module and a communication module, wherein the distance measuring module is used for detecting the distance from the machine head to the tooth surface, and the control module is in signal connection with the communication module and the distance measuring module; the control module is used for calculating the depth of the cutting or tooth entering of the needle according to the detection result of the distance measuring module and sending the calculation result to the upper computer through the communication module.

2. A dental handpiece with auxiliary ranging and depth setting functions as claimed in claim 1, wherein: the distance measuring module is a laser distance measuring module.

3. A dental handpiece with auxiliary ranging and depth setting functions as claimed in claim 2, wherein: the mobile phone comprises a mobile phone body and is characterized in that an optical fiber is arranged in the mobile phone body, a light through hole communicated with the optical fiber is formed in the machine head, the ranging module, the control module and the communication module are all arranged independently of the mobile phone body, and a laser receiving and transmitting end of the ranging module is connected with the optical fiber.

4. A dental handpiece with auxiliary ranging and depth setting functions as claimed in claim 3, wherein: the range finding module has a plurality ofly, be equipped with a plurality of light holes that lead to on the aircraft nose, control module judges the inclination of car needle through calculating the difference between each range finding module testing result, control module calculates the depth of car needle cutting or entering tooth according to the testing result of range finding module and the inclination of car needle, control module still is used for sending the testing result of the inclination of car needle to the host computer.

5. A dental handpiece with auxiliary ranging and depth setting functions as claimed in claim 3, wherein: the unthreaded hole is for predetermineeing the figure, the range finding module still includes image acquisition module, image acquisition module is used for gathering the shape that laser irradiation was behind the tooth face, control module detects dental handpiece's inclination and aircraft nose to the distance of tooth face according to the distortion condition of laser on tooth body tissue surface.

6. A dental handpiece with auxiliary ranging and depth setting functions as claimed in any one of claims 2 to 5, wherein: still be equipped with gesture detection module on the cell-phone body, gesture detection module and control module signal connection, control module is used for detecting the inclination of car needle through gesture detection module, control module calculates the depth that the car needle cut or got into the tooth according to the testing result of range finding module and the inclination of car needle, control module still is used for sending gesture detection module's testing result to the host computer.

7. A dental handpiece with auxiliary ranging and depth setting functions as claimed in claim 2, wherein: the automatic tooth cutting machine further comprises a zero setting correction key, the controller is electrically connected with the zero setting correction key, and after the controller receives a signal of the zero setting correction key, the length of the needle which is not cut or enters a tooth is calculated according to a detection result of the distance measuring module and an inclination angle of the needle and is used as the total length of the needle.

8. A dental handpiece with auxiliary ranging and depth setting functions as claimed in claim 7, wherein: and after the control module receives the signal of the zero setting correction key, the control module acquires data of the distance measurement module and the attitude detection module for multiple times, calculates the total length of the vehicle needle, and takes the average value of multiple calculation results as the total length of the vehicle needle.

9. A dental handpiece with auxiliary ranging and depthkeeping functions as claimed in claim 8, wherein: the control module comprises a timing module, when the total length of the needle is calculated every time, the control module judges whether the mobile phone body is stable or not through data of the distance measuring module or/and the posture detection sensor, the control module is used for recording the duration time of the mobile phone body keeping stable through the timing module, and the control module is used for collecting the detection result of the distance measuring module and the inclination angle of the needle and calculating the total length of the needle after the duration time is larger than a preset value.

10. A dental handpiece with auxiliary ranging and depth setting functions as claimed in claim 1, wherein: the machine head is also provided with a torque sensor, the torque sensor is used for detecting torque parameters borne by the needle, and the control module is also used for sending the detection result of the torque sensor to the upper computer.

Technical Field

The invention relates to the technical field of dental equipment, in particular to a dental handpiece with a function of assisting in distance measurement and depth setting.

Background

In the common dental treatment such as cavity preparation, root canal treatment, post preparation, abutment preparation for fixing a prosthesis and the like, the accurate positioning of the length of the root canal treatment instrument entering the root canal or the determination of the depth of the grinding tooth tissue surface by a machine needle is often needed. In clinic, although the length or depth can be measured by means of an apical X-ray film, a root canal length measuring instrument or a silicon rubber guide plate, the length or depth still needs to be measured manually for many times by a doctor in operation, and the measurement is estimated by combining the experience of the doctor, so that the accurate and quick operation is not facilitated. Improper control of the operation depth in dental treatment often causes damage to apical dead center or lateral penetration of the root canal wall in root canal treatment, and causes unexpected pulp exposure and decreased resistance of the abutment in preparation for tooth restoration. Therefore, the accurate positioning of the depth of the endodontic instrument or the dental needle in the tooth tissue in the clinical operation is of great significance for improving the accuracy and reliability of the dental treatment.

In recent years, technologies such as a dental cone beam projection computer reconstruction tomography (CBCT) technology, a 3D oral scanning technology and the like are rapidly developed, a foundation is laid for application of a digital technology in oral clinical diagnosis and treatment, and formation and development of an oral full-course digital diagnosis and treatment concept including diagnosis design, guide plate manufacturing, clinical operation, postoperative evaluation and the like are promoted. The digital technology-guided dental precision treatment can obviously reduce the technical threshold of clinical operation, changes the diagnosis and treatment mode which excessively depends on doctor experience and operation hand feeling in the traditional technology, and is beneficial to reducing the occurrence of diagnosis and treatment complications. If the position and the depth of the car needle of the location dental handpiece that can be accurate in the tooth tissue, will provide accurate digital operation guide for the operator to show the precision that improves clinical operation, greatly reduced oral cavity clinical diagnosis's the degree of difficulty simultaneously. Therefore, there is a need for a method of positioning a needle that can be applied in the root canal of a tooth to solve the above problems.

Disclosure of Invention

The invention aims to provide a dental handpiece with a function of assisting distance measurement and depth setting, which can quickly and accurately position the depth of a cutting needle or the depth of the cutting needle entering a tooth in real time in clinical operation and provide a data base for dental precise operation guided by a digital technology.

In order to solve the technical problem, the present application provides the following technical solutions:

the dental handpiece with the auxiliary distance measuring and depth fixing functions comprises a handpiece body, a distance measuring module, a control module and a communication module, wherein the handpiece body comprises a handpiece on which a needle is arranged, the distance measuring module is used for detecting the distance from the handpiece to the tooth surface, and the control module is in signal connection with the communication module and the distance measuring module; the control module is used for calculating the depth of the cutting or tooth entering of the needle according to the detection result of the distance measuring module and sending the calculation result to the upper computer through the communication module.

According to the technical scheme, the distance measuring module is arranged on the handpiece of the dental handpiece, so that the distance between the handpiece and the tooth surface can be detected in real time, the depth of a lathe needle for cutting or entering a tooth is calculated, the position of the end part of the lathe needle can be positioned, data are sent to an upper computer through a communication module, data support is provided for accurate operation under the guidance of a digitization technology for cavity preparation, root canal therapy, abutment preparation for fixing a prosthesis and the like, the situations of accidental marrow exposure, apical dead center damage, root canal lateral penetration, root canal therapy instrument fracture and the like caused by inaccurate working length are effectively avoided, the accuracy and effectiveness of therapy are improved, and the success rate of complex dental therapy is improved.

Further, the distance measuring module is a laser distance measuring module. The laser ranging accuracy is high.

Furthermore, the mobile phone body is internally provided with an optical fiber, the handpiece is provided with a light through hole communicated with the optical fiber, the ranging module, the control module and the communication module are all independently arranged with the mobile phone body, and the laser transceiving end of the ranging module is connected with the optical fiber.

some existing dental handpieces are provided with optical fiber channels, so that the distance measuring module, the control module and the communication module can be independently arranged relative to the dental handpieces, if the distance measuring module, the control module and the communication module are integrated on a device independently arranged with a handpiece body, then the light of the laser distance measuring module is conducted through optical fibers, and then the distance measuring module becomes an independent module, the existing dental handpieces can be matched, excessive transformation on the handpiece body is not needed, the cost is reduced, and the equipment universality is improved.

Further, the range finding module has a plurality ofly, be equipped with a plurality of light holes that lead to on the aircraft nose, control module judges the inclination of car needle through calculating the difference between each range finding module testing result, control module calculates the depth of car needle cutting or entering tooth according to the testing result of range finding module and the inclination of car needle, control module still is used for the testing result of the inclination of car needle to send to the host computer. Through setting up a plurality of clear apertures, the range finding is carried out to different positions department, in less within range, regards the flank of a tooth as a fixed plane, and then utilizes the distance of many places range finding to look for the inclination that can reachd cell-phone body and car needle, also can be based on the accurate degree of depth of calculation car needle cutting or entering tooth of the inclination of automobile body in reverse.

Further, the clear aperture is for predetermineeing the figure, the range finding module still includes image acquisition module, image acquisition module is used for gathering the shape that laser shines behind the tooth face, control module detects dental handpiece's inclination and the aircraft nose to the distance of tooth face according to the distortion condition of laser on tooth body tissue surface. And judging the inclination angle and the tooth surface distance of the dental handpiece through the distortion of the graph.

Further, still be equipped with gesture detection module on the cell-phone body, gesture detection module and control module signal connection, control module is used for detecting the inclination of car needle through gesture detection module, control module calculates the depth that the car needle cut or got into the tooth according to the testing result of range finding module and the inclination of car needle, control module still is used for sending gesture detection module's testing result to the host computer.

The inclination angle of the needle is detected through the attitude sensor, so that the deviation caused by the distance between the laser ranging module and the needle is offset, and the measurement is more accurate. The detection result of the attitude detection module is sent to the upper computer, so that the upper computer can acquire more comprehensive data, and a data base is further provided for digital accurate operation.

And the controller is electrically connected with the zero setting correction key, and after receiving a signal of the zero setting correction key, the controller calculates the length of the needle which is not cut or enters the tooth according to the detection result of the distance measurement module and the inclination angle of the needle and takes the length as the total length of the needle. And the length of the needle is automatically detected and calculated through the zero setting correction key.

Further, after the control module receives the signal of the zero setting correction key, the control module acquires data of the distance measurement module and the gesture detection module for multiple times, calculates the total length of the vehicle needle, and takes the average value of multiple calculation results as the total length of the vehicle needle.

And the average value of multiple detections and calculations is taken, so that the measurement result is more accurate.

Further, the control module comprises a timing module, when the total length of the vehicle needle is calculated each time, the control module judges whether the mobile phone body is stable or not through data of the distance measuring module or/and the posture detection sensor, the control module is used for recording the duration time for keeping the mobile phone body stable through the timing module, and the control module is used for collecting the detection result of the distance measuring module and the inclination angle of the vehicle needle and calculating the total length of the vehicle needle after the duration time is greater than a preset value. Whether the mobile phone body is stable is judged through the gesture detection module, whether detection is carried out is judged according to the stable duration, and then the operator can be ensured to carry out detection and calculation of the total length of the sewing needle after the gesture of the mobile phone is adjusted, and further the measuring result is more accurate.

Further, still be equipped with torque sensor on the aircraft nose, torque sensor is used for detecting the moment parameter that the car needle received, control module still is used for sending torque sensor's testing result to the host computer.

The torque parameters borne by the tip of the needle are measured and calculated through the torque sensor, so that the hardness parameters of the root canal wall contacted with the tip of the needle are measured and calculated, and data support is further provided.

Drawings

FIG. 1 is an isometric view of a dental handpiece embodiment of the present invention with an auxiliary range-finding depth-setting feature;

FIG. 2 is a logic diagram of a dental handpiece with an auxiliary range-finding and depth-fixing function according to a first embodiment of the present invention;

FIG. 3 is a schematic diagram of a dental handpiece with an auxiliary distance measuring and depth setting function according to a first embodiment of the present invention;

Fig. 4 is a schematic diagram of a dental handpiece with an auxiliary distance measuring and depth fixing function according to a sixth embodiment of the invention.

Detailed Description

The following is further detailed by way of specific embodiments:

The reference numbers in the drawings of the specification include: the device comprises a machine body 1, a machine head 2, a machine needle 3, a laser ranging module 4, an illuminating lamp 5 and teeth 6.