CN110584943A - Dental comprehensive treatment chair with laser-assisted distance measurement and depth setting functions - Google Patents
Dental comprehensive treatment chair with laser-assisted distance measurement and depth setting functions Download PDFInfo
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- CN110584943A CN110584943A CN201910935568.5A CN201910935568A CN110584943A CN 110584943 A CN110584943 A CN 110584943A CN 201910935568 A CN201910935568 A CN 201910935568A CN 110584943 A CN110584943 A CN 110584943A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/04—Measuring instruments specially adapted for dentistry
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/10—Parts, details or accessories
Abstract
The invention relates to the technical field of dental equipment, in particular to a dental comprehensive treatment chair with a laser-assisted distance measurement and depth setting function, which comprises a base fixed on the ground, wherein a seat body and an auxiliary support are arranged on the base, a balance arm and a control platform are arranged on the auxiliary support, a distance measurement and positioning module is arranged on the control platform, the distance measurement and positioning module comprises a laser distance measurement module, a first control module and a first communication module, and the first control module is used for detecting the depth of a car needle for cutting or entering a tooth body through the laser distance measurement module and sending the depth of the car needle for cutting or entering the tooth to a navigation display device. The dental comprehensive treatment chair with the laser-assisted ranging and depth-setting function can provide real-time and accurate digital operation guidance for an operator, so that the accuracy of clinical operation is obviously improved, the dependence on the hand feeling and the clinical experience of the operator in dental treatment is reduced, the difficulty of oral clinical diagnosis and treatment is greatly reduced, and complications or accidents in treatment are reduced.
Description
Technical Field
The invention relates to the technical field of dental equipment, in particular to a dental comprehensive treatment chair with a laser-assisted distance measurement and depth setting function.
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 tooth restoration preparation. 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. If a set of system or equipment capable of carrying out digitization and visual display on the oral environment, operating instruments and the like is researched and developed, visual guide and accurate digital operation guide are provided for an operator, and the difficulty of oral clinical diagnosis and treatment can be greatly reduced.
Disclosure of Invention
The invention aims to provide a dental comprehensive treatment chair with a laser-assisted ranging and depth-setting function, a system or equipment which can carry out digital and visual display on an oral environment, an operating instrument and the like is provided for an operator, visual guide and accurate digital operation guide are provided for the operator, so that the depth of a car needle for cutting or entering a tooth is quickly and accurately positioned in real time in clinical operation, data support is provided for accurate operation under the guidance of digital technologies such as pit preparation, root canal therapy, abutment preparation for fixing a prosthesis and the like, the situations of accidental exposure, apical dead center damage, lateral penetration of a root canal, breakage of a root canal therapy instrument and the like caused by inaccurate working length are effectively avoided, the accuracy and the effectiveness of treatment are improved, the dependence on the hand feeling and the clinical experience of the operator in complex dental therapy is reduced, and the technical threshold of fine root canal therapy is lowered, and finally, the success rate of complex dental treatment is improved.
In order to solve the technical problem, the present application provides the following technical solutions:
the dental comprehensive treatment chair with the laser-assisted ranging and depth-setting functions comprises a base fixed on the ground, wherein a chair body and an auxiliary support are arranged on the base, a balance arm and a control table are arranged on the auxiliary support, and a ranging and positioning module is arranged on the control table; the range finding positioning module comprises a laser range finding module and a first control module, the laser range finding module is used for detecting the distance from the surface of the handpiece of the dental handpiece to the tooth surface, and the first control module is used for detecting the depth of the cutting of the needle or the entering of the tooth body of the dental handpiece according to the detection result of the laser range finding module.
According to the technical scheme, the laser ranging module is arranged, so that the distance between the machine head and the tooth surface can be detected in real time, the depth of the lathe needle for cutting or entering the tooth is calculated, the position of the end part of the lathe needle can be further positioned, data support is provided for accurate operation under the guidance of a digital technology for cavity preparation, root canal therapy, abutment preparation for fixing a prosthesis and the like, the situations of accidental marrow exposure, apical apex damage, lateral root canal penetration, root canal therapy instrument breakage 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.
Furthermore, a navigation display device is further arranged on the operating platform, the distance measuring and positioning module further comprises a first communication module, and the first control module is used for sending the depth of the cutting or tooth entering of the machine needle to the navigation display device through the first communication module;
the navigation display device comprises a second control module, a second communication module, a display module and a model acquisition module; the second control module receives data sent by the dental handpiece through the second communication module, and the model acquisition module is used for acquiring a three-dimensional model of the spatial structure of the tooth body to be treated; the second control module is used for controlling the display module to display the space structure three-dimensional model, and the second control module is also used for controlling the display module to display the real-time position of the needle on the space structure three-dimensional model according to the cutting depth or the tooth entering depth of the needle.
The navigation display device is configured on the dental comprehensive treatment chair, so that the position depth data of a needle of a dental handpiece can be sent to the navigation display device in real time, the navigation display device can guide a three-dimensional model of a spatial structure of a tooth body of a patient in advance before an operation, and in the process of carrying out root canal treatment, the accurate positioning of a root canal treatment instrument in the current root canal of the tooth body is displayed on the three-dimensional model in real time, so that a prompt effect is played for a user, the user can judge whether the root canal treatment instrument is in a root canal bifurcation or an apical foramen currently, the user is assisted and guided to finish the key steps of root canal formation and the like, the dependence of the user on operation hand feeling and clinical experience is reduced, the visual operation of the root canal treatment is realized, the accuracy and the effectiveness of the treatment are improved, and the success rate of.
Further, the mobile phone body is provided with a gesture detection module, the gesture detection module is used for detecting the inclination angle of the vehicle needle, and the first control module is further used for sending the inclination angle of the vehicle needle to the navigation display device through the first communication module. Through the judgment of adding the inclination angle of the vehicle needle, the position information of the vehicle needle can be acquired more accurately, and more data support is provided for visual operation.
Further, laser rangefinder module has a plurality ofly, be equipped with a plurality of light holes that lead to on the aircraft nose, first control module judges the inclination of car needle through calculating the difference between each range module testing result, first control module calculates the depth that the car needle cut or got into the tooth according to the testing result of range module and the inclination of car needle, first control module still is used for sending the testing result of car needle angle to the host computer.
Through setting up a plurality of clear holes, 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 can reachs the inclination of 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, laser rangefinder module still includes image acquisition module, image acquisition module is used for gathering the shape that laser irradiation was behind the tooth face, first control module detects dental handpiece's inclination and the aircraft nose to the distance of tooth face according to the distortion condition of laser shape on tooth tissue surface face. 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 torque sensor on the cell-phone body, torque sensor is used for detecting the moment parameter that the car needle received, first control module still is used for sending torque sensor's testing result to navigation display device, second control module still is used for calculating the hardness parameter and the moment direction of the root canal wall that the pointed end of car needle contacted and control display module and show according to the moment parameter. Through setting up torque sensor, can acquire the atress data of car needle, and then deduce the hardness parameter of root canal wall, through showing physical parameters such as root canal wall hardness, direction of force, can further assist and guide the operator to accomplish the root canal treatment process.
Further, the first control module is also used for acquiring the running parameters of the dental handpiece and sending the running parameters to the navigation display device, and the display module is also used for displaying the running parameters of the dental handpiece. The dental handpiece can acquire some running parameters of the dental handpiece, such as data of revolution, torque and the like, can provide more equipment data for operators, and enables the operators to master global data.
And the first control module is electrically connected with the zero setting correction key, and after receiving a signal of the zero setting correction key, the first control module calculates the length of the needle which is not cut or enters the tooth according to the detection result of the laser ranging 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 first control module receives the signal of the zero setting correction key, data of the laser ranging module and the gesture detection module are obtained for multiple times, the total length of the needle is calculated, and the average value of multiple calculation results is used as the total length of the needle.
And the average value of multiple detections and calculations is taken, so that the measurement result is more accurate.
Further, the first control module comprises a timing module, when the total length of the needle is calculated each time, the first control module judges whether the mobile phone body is stable or not through data of the attitude detection sensor, the first control module is used for recording duration time for keeping the mobile phone body stable through the timing module, and the first control module is used for collecting a detection result of the laser ranging module and an inclination angle of the needle and calculating the total length of the 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.
Drawings
FIG. 1 is an isometric view of a first embodiment of a dental unit chair with laser-assisted distance and depth determination of the present invention;
FIG. 2 is a logic block diagram of a first embodiment of the integrated dental treatment chair with laser-assisted distance measuring and depth setting functions according to the present invention;
FIG. 3 is a logic block diagram of a dental handpiece used in an embodiment of the integrated dental treatment chair with laser-assisted distance measuring and depth setting of the present invention;
FIG. 4 is an isometric view of a dental handpiece for use in an embodiment of a dental unit chair of the present invention having laser-assisted ranging and depth setting;
FIG. 5 is a schematic diagram of the depth of the needle in the embodiment of the integrated dental treatment chair with laser-assisted distance measurement and depth setting functions according to the present invention;
fig. 6 is a display interface of a display module in an embodiment of the dental unit treatment chair with the laser-assisted ranging and depth-setting functions.
Detailed Description
The following is further detailed by way of specific embodiments:
the reference numbers in the drawings of the specification include: the dental robot comprises a base 1, a seat support 2, a seat 3, a chair back 4, a console 6, a navigation display device 7, a dental handpiece 8, a machine body 81, a machine head 82, a machine needle 83, a laser ranging module 84 and teeth 86.
Example one
As shown in fig. 1 and fig. 2, the dental comprehensive treatment chair with laser-assisted distance measurement and depth setting functions of the present embodiment includes a base 1 fixed on the ground, a seat body and an auxiliary support are provided on the base 1, the seat body includes a seat support 2, a seat base 3, a seat back 4 and armrests are provided on the seat support 2, an angle between the seat support 2 and the base 1 is adjustable, a balance arm and a console 6 are provided on the auxiliary support, a digital oral cavity microscope is installed on the balance arm, and a navigation display device 7 and a dental handpiece 8 are provided on the console 6.
As shown in fig. 3 and 4, the dental handpiece 8 includes a handpiece body, the handpiece body includes a handpiece 82 and a body, the handpiece 82 is provided with a needle 83, the handpiece body further includes a laser ranging module, the laser ranging module is used for detecting the distance from the handpiece 82 to the tooth surface of the tooth 86, and in other embodiments of the present application, the laser ranging module can also adopt other ranging modes such as ultrasonic ranging.
A first control module, a first communication module and an attitude detection module are arranged inside the machine body 81, and the first control module is in signal connection with the first communication module, the attitude detection module and the laser ranging module; the first control module is used for calculating the depth of the cutting or entering tooth 86 of the needle 83 according to the detection result of the laser ranging module and sending the calculation result to the navigation display device 7 through the first communication module. The first control module is used for detecting the inclination angle of the needle 83 through the gesture detection module, calculating the depth of the needle 83 cutting or entering the teeth 86 according to the detection result of the laser distance measurement module and the inclination angle of the needle 83, and sending the detection result of the gesture detection module to the navigation display device 7.
The navigation display device 7 comprises a second control module, a second communication module and a display module, wherein the second control module comprises a model acquisition module, a model loading module and a display synthesis module, the second control module receives data sent by the dental handpiece 8 through the second communication module, and the model acquisition module is used for acquiring a three-dimensional model of the spatial structure of the dental body to be treated; the model loading module is used for controlling the display module to display the three-dimensional model of the space structure, and the display synthesis module is used for controlling the display module to display the real-time position of the needle 83 on the three-dimensional model of the space structure according to the cutting or tooth entering depth of the needle 83 and the inclination angle of the needle 83. The first control module is further used for acquiring the operating parameters of the dental handpiece 8 and sending the operating parameters to the navigation display device 7, the operating parameters comprise the rotating speed of the needle 83, and the display module is further used for displaying the operating parameters of the dental handpiece 8. The digital oral cavity microscopic equipment is in data connection with a navigation display device 7, and the display module is also used for displaying a microscopic image of the digital oral cavity microscopic equipment.
The detection process of the first control module for detecting the depth of the cutting or entering of the needle 83 into the tooth 86 is shown in fig. 5, specifically, s represents the length of the needle 83 which does not go deep into the tooth 86, d represents the length of the needle 83 which has been cut or entered into the tooth 86, ds represents the total length of the needle 83, θ represents the inclination angle of the needle 83, the measurement result of the laser ranging module 84 is dm, and dl represents the distance between the laser ranging module 84 and the needle 83, then:
s＝dl*arctan(θ)+dm
d＝ds-s
in this embodiment, the first communication module and the second communication module are both wireless communication modules, specifically bluetooth wireless communication modules, and in other embodiments of the present application, the communication modules may be RS232 serial communication modules, RS585 serial communication modules, ethernet communication modules, optical fiber communication modules, and the like. In this embodiment, the operator issues the total length of the needle 83 to the first control module through the navigation display device 7, and the first control module sets a data value of the total length of the needle 83 after receiving a setting instruction of the navigation display device 7. In other embodiments of the present application, the length of the needle 83 may be manually set by a button on the body 81. The attitude detection module comprises a gyroscope and an accelerometer, the first control module fuses data of the gyroscope and the acceleration to realize precision frontal angle detection, the first control module is preferably a single chip microcomputer, and a corresponding software system runs on the single chip microcomputer to realize detection and transmission functions.
Example two
The difference between this embodiment and the first embodiment is that, in this embodiment, the body 81 is provided with a zero adjustment correction key, the controller is electrically connected to the zero adjustment correction key, and after the controller receives a signal of the zero adjustment correction key, the controller calculates the length of the needle 83 that does not cut or enter the tooth 86 according to the detection result of the laser ranging module and the inclination angle of the needle 83, and uses the length as the total length of the needle 83. The length of the needle 83 is automatically detected and calculated by the zero adjustment correction key.
After the first control module receives the signal of the zeroing correction key, the data of the laser ranging module and the attitude detection module are acquired for multiple times, and the total length of the needle 83 is calculated. In other embodiments of the present application, the number of times of detection calculation may be set according to actual needs, and data obtained by a mode or using another algorithm may also be used as the total length of the needle 83 when the total length of the needle 83 is calculated.
EXAMPLE III
The difference between this embodiment and the second embodiment lies in that, in this embodiment, the gesture detection module includes accelerometer and gyroscope, and first control module includes timing module, and when calculating the total length of car needle 83 at every turn, first control module passes through gesture detection sensor's data and judges whether the cell-phone body is stable, and is concrete, whether the data rate of change and the range of change according to accelerometer are in predetermineeing the scope, if then the cell-phone body is steady, if else the current cell-phone body is in the mobile state. The first control module is used for recording the duration of the stability of the mobile phone body through the timing module, collecting the detection result of the laser ranging module and the inclination angle of the needle 83 and calculating the total length of the needle 83 after the duration is greater than a preset value, and storing the detection result and the calculation result of the laser ranging module and the gesture detection module every time. 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 83 after the gesture of the mobile phone is adjusted, and further the measurement result is more accurate.
In this embodiment, the first control module further includes an angle difference detection module, where the angle difference detection module is configured to, each time data of the laser ranging module and the posture detection module are acquired and the total length of the needle 83 is calculated, determine whether the angle of the current needle 83 is changed greatly relative to the angle of the needle 83 detected last time, that is, determine whether the angle difference between the angle of the current needle 83 and the angle of the needle 83 detected last time is greater than a preset value, if yes, determine that the detection is valid, if not, determine that the detection is invalid, and through such a setting, enable a user to detect the total length of the needle 83 from multiple angles, thereby implementing detection and recording of multiple angles, and improving accuracy.
Example four
The difference between the first embodiment and the second embodiment is that the handpiece 82 is further provided with a torque sensor, the torque sensor is used for detecting torque parameters borne by the needle 83, the first control module is further used for sending detection results of the torque sensor to the navigation display device 7, and the second control module can calculate hardness of the root canal wall according to the torque parameters and send hardness data to the navigation display device 7. The moment sensor adopts the current MEMS sensor technology, and the second control module measures and calculates the current root canal wall hardness according to a comparison table of the moment and the root canal wall hardness; the comparison relation table can be preset in the second control module, can be imported from the outside, and can also be formed by sampling tests on a large number of in-vitro teeth, the display module displays the data of the hardness, the torque direction and the like of the root canal wall, and the display result is shown in fig. 6.
EXAMPLE five
The difference between this embodiment and the first embodiment is that, in this embodiment, an optical fiber is disposed in the handpiece body, a light through hole communicated with the optical fiber is disposed on the handpiece 2, the dental handpiece adopts the existing dental handpiece with the optical fiber, the laser ranging module 4, the first control module and the communication module are integrated on the ranging positioning module, the ranging positioning module is independently disposed on the handpiece body, the ranging positioning module is independently disposed on the console, and the laser transceiving end of the laser ranging module 4 is connected with the optical fiber. In order to improve the detection accuracy as much as possible, in other embodiments, a lens may be disposed at the light-passing hole to improve the light collection efficiency and ensure the normal operation of the laser ranging module 4.
EXAMPLE six
The difference between this embodiment and the fifth embodiment is that in this embodiment, the distance measuring module has a plurality of distance measuring modules, the handpiece 2 is provided with a plurality of light through holes, specifically, in this application, there are three light through holes and three laser distance measuring modules 4, the first control module determines the inclination angle of the needle 3 by calculating the difference between the detection results of the distance measuring modules, and finds the inclination angle according to the difference measured by the distance and the distance between the laser distance measuring modules 4, the first control module calculates the depth of the needle 3 cutting or entering the tooth 6 according to the detection result of the distance measuring module and the inclination angle of the needle 3, the principle is the same as that in the first embodiment, and the first control module is further configured to send the detection result of the posture detecting module to the upper computer.
In this embodiment, through setting up a plurality of clear holes, range finding is carried out to different positions department, and in less within range, regard as a fixed plane to the flank of a tooth, and then utilize the distance of many places range finding to look for can reacing the inclination of cell-phone body and car needle 3, also can be based on the accurate degree of depth of calculating the car needle 3 cutting or entering in the tooth 6 of the inclination of automobile body in return, need not to be equipped with gesture detection module, can reduce cost.
EXAMPLE seven
The difference between this embodiment and the sixth embodiment is that, in this embodiment, the light passing holes are preset patterns, or a plurality of light passing holes form a preset pattern, such as a circular ring shape, the distance measuring module further includes an image collecting module, in this embodiment, the image collecting module is a camera, and is disposed on the handpiece 2, the camera is a micro camera, such as a cmos ov6920 camera for an endoscope or a MEMS camera, so as to reduce the volume as much as possible, the image collecting module is used for collecting the shape of the laser irradiated on the tooth surface, the first control module detects the inclination angle of the dental handpiece and the distance from the handpiece 2 to the tooth surface according to the distortion condition of the laser on the tooth tissue surface, and the distance or the angle is calculated by the pattern distortion, which is implemented by the existing image processing algorithm. Compared with the sixth embodiment, the method can accurately measure the distance on the more complex tooth surface and is suitable for the environment with changeable tooth surfaces.
Example eight
In this embodiment, be equipped with visible light laser emitter and light source switching module in the ranging module, when needs throw light on, can switch to visible light laser through light source switching module, visible light laser passes through light source switching module and gets into optic fibre, shines out by the through-light hole at last, and then throws light on the oral cavity is inside, makes things convenient for doctor's operation.
The above are merely examples of the present invention, and the present invention is not limited to the field related to this embodiment, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art can know all the common technical knowledge in the technical field before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the scheme, and some typical known structures or known methods should not become barriers to the implementation of the present invention by those skilled in the art in light of the teaching provided in the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. The dental comprehensive treatment chair with the laser-assisted ranging and depth-setting functions comprises a base fixed on the ground, wherein a chair body and an auxiliary support are arranged on the base, a balance arm and a control table are arranged on the auxiliary support, and a ranging and positioning module is arranged on the control table; the range finding positioning module comprises a laser range finding module and a first control module, the laser range finding module is used for detecting the distance from the surface of the handpiece of the dental handpiece to the tooth surface, and the first control module is used for detecting the depth of the cutting of the needle or the entering of the tooth body of the dental handpiece according to the detection result of the laser range finding module.
2. The dental unit-therapy chair with laser-assisted distance-measuring and depth-setting functions according to claim 1, wherein: the operating table is also provided with a navigation display device, the distance measurement positioning module further comprises a first communication module, and the first control module is used for sending the depth of the cutting or tooth entering of the machine needle to the navigation display device through the first communication module;
the navigation display device comprises a second control module, a second communication module, a display module and a model acquisition module; the second control module receives data sent by the dental handpiece through the second communication module, and the model acquisition module is used for acquiring a three-dimensional model of the spatial structure of the tooth body to be treated; the second control module is used for controlling the display module to display the space structure three-dimensional model, and the second control module is also used for controlling the display module to display the real-time position of the needle on the space structure three-dimensional model according to the cutting depth or the tooth entering depth of the needle.
3. The dental unit-therapy chair with laser-assisted distance-measuring and depth-setting functions according to claim 2, wherein: the mobile phone comprises a mobile phone body and is characterized in that a gesture detection module is arranged on the mobile phone body and used for detecting the inclination angle of a vehicle needle, and the first control module is further used for sending the inclination angle of the vehicle needle to a navigation display device through a first communication module.
4. The dental unit-therapy chair with laser-assisted distance-measuring and depth-setting functions according to claim 2, wherein: the laser ranging module has a plurality ofly, be equipped with a plurality of light holes that lead to on the aircraft nose, first control module judges the inclination of car needle through calculating the difference between each ranging module testing result, first control module calculates the depth that the car needle cut or got into the tooth according to ranging module's testing result and the inclination of car needle, first control module still is used for sending the testing result of car needle angle to the host computer.
5. The dental unit-therapy chair with laser-assisted distance-measuring and depth-setting functions according to claim 2, wherein: the light through hole is for predetermineeing the figure, laser rangefinder module still includes image acquisition module, image acquisition module is used for gathering the shape that laser irradiation was behind the tooth face, first control module detects dental handpiece's inclination and the aircraft nose to the distance of tooth face according to the distortion condition of laser shape on tooth tissue surface face.
6. The dental unit-therapy chair with laser-assisted distance-measuring and depth-setting functions according to claim 2, wherein: the mobile phone comprises a mobile phone body and is characterized in that a torque sensor is further arranged on the mobile phone body and used for detecting torque parameters borne by a needle, the first control module is further used for sending detection results of the torque sensor to a navigation display device, and the second control module is further used for calculating hardness parameters and torque directions of a root pipe wall contacted with the tip end of the needle according to the torque parameters and controlling the display module to display the hardness parameters and the torque directions.
7. The dental unit-therapy chair with laser-assisted distance-measuring and depth-setting functions according to claim 2, wherein: the first control module is further used for acquiring the running parameters of the dental handpiece and sending the running parameters to the navigation display device, and the display module is further used for displaying the running parameters of the dental handpiece.
8. The dental unit-therapy chair with laser-assisted distance-measuring and depth-fixing functions according to any one of claims 3 to 5, wherein: the first control module is electrically connected with the zero setting correction key, and after receiving a signal of the zero setting correction key, the first control module calculates the length of the needle which is not cut or enters the tooth according to the detection result of the laser ranging module and the inclination angle of the needle and takes the length as the total length of the needle.
9. A dental unit chair with laser-assisted distance measuring and depth setting functions according to claim 8, wherein: and after receiving the signal of the zero setting correction key, the first control module acquires data of the laser ranging module and the attitude detection module for multiple times, calculates the total length of the needle, and takes the average value of multiple calculation results as the total length of the needle.
10. A dental unit chair with laser-assisted distance measuring and depth setting functions as claimed in claim 9, wherein: the first control module comprises a timing module, when the total length of the needle is calculated every time, the first control module judges whether the mobile phone body is stable or not through data of the attitude detection sensor, the first control module is used for recording the duration time for the mobile phone body to be stable through the timing module, and the first control module is used for collecting a detection result of the laser ranging module and the inclination angle of the needle and calculating the total length of the needle after the duration time is greater than a preset value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910935568.5A CN110584943A (en) | 2019-09-29 | 2019-09-29 | Dental comprehensive treatment chair with laser-assisted distance measurement and depth setting functions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910935568.5A CN110584943A (en) | 2019-09-29 | 2019-09-29 | Dental comprehensive treatment chair with laser-assisted distance measurement and depth setting functions |
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| CN110584943A true CN110584943A (en) | 2019-12-20 |
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| CN201910935568.5A Pending CN110584943A (en) | 2019-09-29 | 2019-09-29 | Dental comprehensive treatment chair with laser-assisted distance measurement and depth setting functions |
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Application publication date: 20191220 |