WO2022007214A1

WO2022007214A1 - Method for measuring connection taper of dental implant

Info

Publication number: WO2022007214A1
Application number: PCT/CN2020/119536
Authority: WO
Inventors: 李买生; 张潇; 陈贤帅
Original assignee: 佛山市安齿生物科技有限公司
Priority date: 2020-07-06
Filing date: 2020-09-30
Publication date: 2022-01-13
Also published as: CN111854647A

Abstract

Disclosed is a method for measuring a connection taper (α) of a dental implant (100), the method comprising the following steps: placing the dental implant (100) below a first laser device (140), and arranging a displacement measurement device on one side of the dental implant (100); rotating the dental implant (100) to change the angle between the dental implant (100) and the horizontal plane, and recording an angle of inclination (θ) after the rotation; the first laser device (140) emitting a laser which moves from a first position (D1) to a second position (D2) on an inner conical surface of the dental implant (100) so as to obtain a height difference (y) of the inner conical surface, and the displacement measurement device synchronously measuring the displacement (x) of the inner conical surface of the dental implant (100); and a control device obtaining the taper (α) of the dental implant (100) on the basis of the angle of inclination (θ), the height difference (y) and the displacement (x). The measuring method avoids abrasion of the inner conical surface of the dental implant (100), thereby improving the measurement efficiency and accuracy.

Description

Testing method for the taper of dental implant connection

technical field

The invention relates to the technical field of data detection, in particular to a method for detecting the taper of a dental implant connection.

Background technique

Dental implant refers to a device that is surgically implanted into the upper and lower jaws of the edentulous part of the human body. After the wound is healed, the abutment and prosthesis are installed on the upper part of the dental implant. Since the abutment and the dental implant are usually fixed by screw locking, the inner cone surface of the dental implant needs to cooperate with the outer cone surface of the abutment to seal the threaded cavity of the dental implant to prevent bacteria and debris Therefore, the connection interface between the dental implant and the abutment is the key to determine the biological sealing and fatigue strength, and requires high precision of the taper.

In the prior art, a dial indicator and a steel ball or a three-coordinate measuring instrument are often used to detect the connection taper of the dental implant, wherein the method of using the dial indicator and the steel ball to detect is a contact measurement, which may scratch the dental implant during the measurement process. The tapered surface affects the tightness of the dental implant and the abutment. The method of using a three-coordinate measuring instrument to detect the taper of the dental implant connection requires the use of a probe to collect multiple points on the inner tapered surface to establish data, which is inefficient.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes a method for detecting the taper of a dental implant connection, which can detect the taper of the inner conical surface of the dental implant with high efficiency and high precision.

The method for detecting the connecting taper of a dental implant according to an embodiment of the present invention includes the following steps: placing the dental implant under the first laser device, and setting a displacement measuring device on one side of the dental implant; rotating the dental implant The dental implant, changing the angle between the dental implant and the horizontal plane, the first position of the inner cone surface after the dental implant is rotated is located below the place where the first laser device emits laser light, and the dental implant after the rotation is recorded. the inclination angle of the implant to the horizontal plane; the first laser device emits a laser to the inner cone of the dental implant, and the laser moves from the first position of the dental implant to the second position of the dental implant position to obtain the height difference between the first position and the second position, and the displacement measuring device simultaneously detects the relative movement distance of the dental implant and the first laser device to obtain the dental implant Displacement amount of the tapered surface in the body; the control device obtains the taper of the dental implant according to the inclination angle, the height difference and the displacement amount.

The method for detecting the connecting taper of a dental implant according to the embodiment of the present invention has at least the following beneficial effects: by rotating the dental implant, the angle between the dental implant and the horizontal plane is changed, and the dental implant is rotated until its inner conical surface can be replaced by the first After the angle detected by the laser device is recorded, the rotation plane of the dental implant and the horizontal plane is recorded; by placing the first position of the inner cone surface after the dental implant is rotated under the place where the first laser device emits laser light, the first laser device is directed to the tooth. The inner cone surface of the implant emits laser, and the laser moves from the first position of the dental implant to the second position of the dental implant, and the height difference in the vertical direction of the dental implant can be obtained, and the displacement measuring device is set on the dental implant. On one side of the body, the displacement measuring device synchronously detects the relative movement distance between the dental implant and the first laser device, and obtains the displacement of the inner cone surface of the dental implant in the horizontal direction; the control device obtains the displacement according to the tilt angle, height difference and displacement. Taper of dental implants. During the detection process, the taper of the inner cone surface of the dental implant only needs to be measured by measuring the three data of height difference, displacement amount and inclination angle. Wear, the measured taper accuracy is higher.

According to some embodiments of the present invention, a mounting assembly is included, the mounting assembly includes a frame, a positioning seat and a fixture, the dental implant is placed in the fixture, and the fixture is rotatably mounted on the fixture On the positioning seat, the positioning seat is rotatably mounted on the frame, and after the step of "the control device obtains the taper of the dental implant according to the inclination angle, the height difference and the displacement", the Include the following steps:

The fixture rotates around the axis, and the first laser device detects the inner cone surfaces at different positions of the dental implant after the rotation, and repeatedly detects the height difference and the displacement to obtain the dental implant The taper of the inner cone at different locations.

According to some embodiments of the present invention, when the dental implant is rotated to change the angle between the dental implant and the horizontal plane, the first position of the inner cone surface after the dental implant is rotated is located at the first laser After the step of recording the inclination angle of the dental implant and the horizontal plane after the rotation, the following steps are also included:

A limit sensor is arranged on the positioning seat, and the limit sensor is located on one side of the fixture, and the relative position between the dental implant and the first laser device is detected by the limit sensor , and feedback the detected detection signal to the control device;

The control device adjusts the first position of the inner cone surface of the dental implant to be below where the first laser device emits laser light according to the received detection signal.

An optical imaging device is arranged above the fixture, and an image signal of the relative position of the dental implant and the first laser device is acquired by the optical imaging device, and the image signal is fed back to the control device;

The control device adjusts the first position of the inner cone surface of the dental implant to be below where the first laser device emits laser light according to the received image signal.

According to some embodiments of the present invention, it further comprises: a rotary encoder is provided on one side of the frame, the rotary encoder is connected with the positioning seat, and the rotating encoder is used to measure the rotation of the tooth The inclination angle of the implant and the horizontal plane, and the measured inclination angle is fed back to the control device through the angle signal.

According to some embodiments of the present invention, a first sliding member is further included, the first sliding member is disposed along the front-rear direction, the mounting assembly is slidably mounted on the first sliding member, and the mounting assembly is mounted on the first sliding member. A sliding member slides up, adjusts the positions of the dental implant and the first laser device, and moves the first position of the inner cone surface of the dental implant to below where the first laser device emits laser light;

The first laser device emits laser light to the inner cone surface of the dental implant, slides on the first sliding member through the mounting assembly, and the laser light moves from the first position of the dental implant to the desired position. The second position of the dental implant is obtained, and the height difference between the first position and the second position is obtained.

According to some embodiments of the present invention, there are several fixtures, and the method for detecting the coupling taper of a dental implant further includes a second sliding member, and the first sliding member is slidably mounted on the second sliding member. The first sliding member and the second sliding member are perpendicular to each other, and the mounting assembly moves in the left-right direction according to the second sliding member to switch the positions of the fixture and the first laser device , the first laser device measures the height difference of the inner cone surfaces of the dental implants in different fixtures.

According to some embodiments of the present invention, the displacement measuring device is a second laser device, the second laser device is disposed on the first sliding member, and the second laser device is located in the front-rear direction of the mounting assembly above, the second laser device measures the change in the distance from the mounting assembly, and feeds back the measured distance signal to the control device, and the control device obtains the first position of the dental implant according to the received distance signal The amount of displacement in the horizontal direction from the second position.

According to some embodiments of the present invention, the displacement measuring device is a CCD camera, the CCD camera is disposed on the second sliding member, and the CCD camera is located in the left-right direction of the mounting assembly, the CCD camera is Photographing and obtaining the image signal of the position of the installation component, and feeding the image signal back to the control device, and the control device obtains the horizontal displacement of the first position and the second position of the dental implant according to the received image signal quantity.

Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

1 is a schematic structural diagram of a dental implant in a first embodiment of the present invention during detection;

2 is a schematic structural diagram of a workpiece positioning seat according to an embodiment of the present invention;

Fig. 3 is the structural schematic diagram of the position of the dental implant and the displacement measuring device before the detection begins;

Fig. 4 is the structural schematic diagram of the position of the dental implant and the displacement measuring device after the detection is completed;

5 is a schematic diagram of taper calculation in the measuring method of the present invention;

FIG. 6 is a schematic structural diagram of a dental implant according to the second embodiment of the present invention during detection.

Reference number:

Dental implant 100, mounting assembly 110, frame 111, positioning seat 112, fixture 113, limit sensor 120, optical imaging device 130, first laser device 140, second laser device 150, CCD camera 151, first slide member 160 , the second sliding member 170 , and the rotary encoder 180 .

detailed description

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the azimuth description, such as the azimuth or positional relationship indicated by up, down, front, rear, etc., is based on the azimuth or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention. The invention and simplified description do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number. If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

The method for detecting the coupling taper of a dental implant according to the present invention will be described below with reference to FIGS. 1 to 6 .

As shown in FIG. 1 , FIG. 3 and FIG. 4 , the method for detecting the connecting taper of a dental implant according to an embodiment of the present invention includes the following steps: placing the dental implant 100 under the first laser device 140 , and setting the displacement measuring device at One side of the dental implant 100; the dental implant 100 is rotated to change the angle between the dental implant 100 and the horizontal plane, and the first position of the inner cone surface after the dental implant 100 is rotated is located below the place where the first laser device 140 emits laser light , record the inclination angle θ of the dental implant 100 and the horizontal plane after the rotation; the first laser device 140 emits laser light to the inner cone surface of the dental implant 100 , and the laser moves from the first position D1 of the dental implant 100 to the position of the dental implant 100 At the second position D2, the height difference y between the first position D1 and the second position D2 is obtained, and the displacement measuring device simultaneously detects the relative movement distance of the dental implant 100 and the first laser device 140 to obtain the inner cone of the dental implant 100 The displacement x of the first position D1 of the surface and the second position D2 of the inner tapered surface in the horizontal direction; the control device obtains the taper α of the dental implant 100 according to the inclination angle θ, the height difference y and the displacement x.

Specifically, through the relative movement of the dental implant 100 and the first laser device 140, the first laser device 140 detects the height difference y in the vertical direction between the first position D1 and the second position D2 of the inner cone surface of the dental implant 100 At the same time, in the process of measuring the height difference y, the displacement measuring device measures the relative moving distance between the dental implant 100 and the first laser device 140, and the moving distance between the dental implant 100 and the first laser device 140 is the dental implant The displacement x of the first position D1 and the second position D2 of the inner cone surface of 100 in the horizontal direction. Since the height difference y of the inner cone surface of the dental implant 100 needs to be obtained by measuring the distance change to the inner cone surface of the dental implant 100 through the first laser device 140 , the first position of the inner cone surface of the dental implant 100 after rotation is D1 should be in a position that can be detected by the first laser device 140; by rotating the dental implant 100, the angle between the dental implant 100 and the horizontal plane is changed, so that the first position D1 of the inner cone surface after the dental implant 100 is rotated is located in the first position D1 A laser device 140 is located under the place where the laser light is emitted, and the detection effect is better obtained when the first laser device 140 emits the laser light. The inclination angle θ between the dental implant 100 and the horizontal plane after rotation is obtained and recorded. , the inclination angle θ between the dental implant 100 and the horizontal plane can be determined and recorded by the rotary encoder 180 . Feedback the three data of height difference y, displacement x and inclination angle θ to the control device, the control device calculates the angle β between the inner cone surface and the horizontal surface through the inverse trigonometric function, and the control device calculates the angle β between the inner cone surface and the horizontal surface according to the inclination angle θ and the inner cone surface and the horizontal surface. The angle β of the dental implant 100 is obtained by obtaining the taper α of the inner tapered surface of the dental implant 100, and the taper α is the difference between the inclination angle θ and the angle β between the inner tapered surface and the horizontal plane. It is conceivable that the first position D1 and the second position D2 may be any two points on the inner cone surface of the dental implant 100 to be detected, and it is only necessary to ensure that the first laser device 140 can detect the inner cone of the dental implant 100. The height difference y of the surface can be detected, and at the same time, it is ensured that the second laser device 150 can simultaneously detect the relative movement distance between the dental implant 100 and the first laser device 140, that is, the first position D1 and the first position D1 of the inner cone surface of the dental implant 100 are obtained. The amount of displacement x between the two positions D2.

In some embodiments of the present invention, a mounting assembly 110 is further included. The mounting assembly 110 includes a frame 111, a positioning seat 112 and a fixture 113. The dental implant 100 is placed in the fixture 113, and the fixture 113 is rotatably mounted on the fixture 113. On the positioning seat 112, the positioning seat 112 is rotatably mounted on the frame 111. After the step of "the control device obtains the taper α of the dental implant 100 according to the inclination angle θ, the height difference y and the displacement x", the following steps are also included: Rotate the fixture 113 and drive the dental implant 100 to rotate around the axis of the fixture 113. The first laser device 140 detects the inner cone surfaces at different positions of the dental implant 100 after the rotation, and repeatedly detects the height difference y and displacement x , the taper α of the inner cone surface at different positions of the dental implant 100 is obtained. As shown in FIG. 1 and FIG. 2 , the dental implant 100 is placed in a fixture 113 , the fixture 113 is mounted on the positioning seat 112 , and the positioning seat 112 is rotatably mounted on the frame 111 . Specifically, the jig 113 is rotatably mounted on the positioning seat 112 , and the positioning seat 112 is provided with a first motor to drive the jig 113 to rotate around the axis, thereby driving the dental implant 100 placed in the jig 113 to rotate. After the taper α is detected on an inner tapered surface of the dental implant 100, the jig 113 can be rotated directly, and the jig 113 can drive the dental implant 100 to rotate around the axis of the jig 113, so that the first laser device 140 can align the dental implant. The inner cone surfaces at different positions of the body 100 are detected, which improves the detection effect, and at the same time, multiple detections also improve the accuracy of the detection result. It can be understood that, other devices having a driving effect may also be arranged in the positioning seat 112, and the selection of a motor in this embodiment is not a specific limitation of the present invention.

In some embodiments of the present invention, when the dental implant 100 is rotated to change the angle between the dental implant 100 and the horizontal plane, the first position D1 of the inner cone surface after the dental implant 100 is rotated is located at the first position D1 emitted by the first laser device 140 Below the laser, after the step of recording the inclination angle θ" of the rotating posterior dental implant 100 and the horizontal plane, the following steps are also included: a limit sensor 120 is set on the positioning seat 112, and the limit sensor 120 is located on one side of the fixture 113. , the relative position between the dental implant 100 and the first laser device 140 is detected by the limit sensor 120, and the detection signal is fed back to the control device; D1 is adjusted to be below where the first laser device 140 emits laser light.

Specifically, the relative position between the dental implant 100 and the first laser device 140 is detected by the limit sensor, so as to obtain the relative position information between the dental implant 100 and the first laser device 140, and the position information is converted into a detection signal The feedback is sent to the control device, and the control device adjusts the position of the dental implant 100 according to the received detection signal, so that the first position D1 of the inner conical surface of the dental implant 100 is located below the first laser device 140 and is located at the first laser device 140 The detection effect obtained by the detection directly below the place where the laser is emitted is better, and the relative position deviation between the dental implant 100 and the first laser device 140 is avoided, so that the laser light emitted by the first laser device 140 cannot fall into the dental implant. The problem on the inner cone of the 100. Since one limit sensor 120 corresponds to checking the relative position between one dental implant 100 and the first laser device 140, the number of limit sensors 120 needs to correspond to the number of dental implants 100; the limit sensor 120 can be arranged at At different positions relative to the dental implant 100 , the position of the limit sensor 120 is corrected to ensure that the limit sensor 120 can check the relative position between the first laser device 140 and the dental implant 100 .

In some embodiments of the present invention, when the dental implant 100 is rotated to change the angle between the dental implant 100 and the horizontal plane, the first position D1 of the inner cone surface after the dental implant 100 is rotated is located at the first position D1 emitted by the first laser device 140 Below the laser, after the step of recording the inclination angle θ" of the dental implant 100 and the horizontal plane after the rotation, the following steps are also included: an optical imaging device 130 is arranged above the fixture 113, and the optical imaging device 130 is used to obtain the dental implant 100 and the dental implant 100. The image information of the position of the first laser device 140 is converted into an image signal and fed back to the control device; the control device adjusts the first position D1 of the inner cone surface of the dental implant 100 to the first laser device 140 according to the received image signal below where the laser is emitted. For example, as shown in FIG. 1 , the optical imaging device 130 is positioned above the dental implant 100 . Specifically, the optical imaging device 130 selects a CCD camera, is located above the dental implant 100, acquires image information of the position between the first laser device 140 and the dental implant 100 by shooting, converts the image information into an image signal and feeds it back to the control The control device adjusts the relative position between the first laser device 140 and the dental implant 100 after receiving the feedback image signal, so as to ensure that the first position D1 of the dental implant 100 is located below the first laser device 140 for detection, and The detection effect obtained by performing detection directly under the place where the first laser device 140 emits laser light is better.

In some embodiments of the present invention, a rotary encoder 180 is provided on one side of the frame 111, the rotary encoder 180 is connected with the positioning seat 112, and the inclination of the dental implant 100 and the horizontal plane after rotation is measured by the rotary encoder 180 Angle θ, and feedback the measured tilt angle θ to the control device through digital signal. For example, as shown in FIG. 1 , the rotary encoder 180 is located on one side of the dental implant 100 . Specifically, by arranging the rotary encoder 180 on one side of the frame 111 and connecting the rotary encoder 180 to the positioning seat 112, the inclination angle θ of the dental implant 100 after the rotation and the horizontal plane can be directly measured, and the obtained The data of the inclination angle θ is fed back to the control system through a digital signal, which is convenient for the subsequent calculation of the control system. The use of the rotary encoder 180 can quickly measure the inclination angle θ, which improves the detection efficiency.

In some embodiments of the present invention, a first sliding member 160 is further included, the first sliding member 160 is disposed along the front-rear direction, the mounting assembly 110 is slidably mounted on the first sliding member 160 , and the mounting assembly 110 is on the first sliding member 160 Slide up, adjust the positions of the dental implant 100 and the first laser device 140, and move the first position D1 of the inner conical surface of the dental implant 100 to below the place where the first laser device emits laser light; the first laser device 140 is directed toward the dental implant The inner cone surface of the body 100 emits the laser, and the installation assembly 110 slides on the first sliding member 160, and the laser moves from the first position D1 of the dental implant 100 to the second position D2 of the dental implant 100 to obtain the first position D1 The height difference y from the second position D2. For example, as shown in FIG. 1 , the first sliding member 160 is disposed along the front-rear direction, the mounting assembly 110 is slidably mounted on the first sliding member 160 , the displacement measuring device is disposed on the first sliding member 160 , and the displacement measuring device is disposed on the mounting assembly 110 in the front and rear direction. Specifically, by using the first laser device 140 to detect the height difference y of the inner conical surface of the dental implant 100 , the first position D1 of the inner conical surface of the dental implant 100 after rotation should be at a position that can be detected by the first laser device 140 ; By sliding the mounting assembly 110 on the first sliding member 160, the dental implant 100 can slide in the front-rear direction under the driving of the frame 111, and the relative position between the dental implant 100 and the first laser device 140 is adjusted so that the The first position D1 of the inner cone surface of the dental implant 100 is located below the place where the first laser device 140 emits the laser light, and the detection effect obtained when the first position D1 is directly under the place where the first laser device 140 emits the laser light is better. During the detection process, the installation assembly 110 drives the dental implant 100 to slide on the first sliding member, the first laser device 140 moves from the first position D1 of the dental implant to the second position D2 of the dental implant, and detects the dental implant. The distance of the inner cone surface of 100 is changed to obtain the height difference y between the first position D1 and the second position D2.

In some embodiments of the present invention, a plurality of fixtures 113 are provided, and the method for detecting the coupling taper of a dental implant further includes a second sliding member 170, and the first sliding member 160 is slidably mounted on the second sliding member 170, The first sliding member 160 and the second sliding member 170 are perpendicular to each other, and the mounting assembly 110 moves left and right according to the second sliding member 170 to switch the relative positions between the plurality of fixtures 113 and the first laser device 140 . The first laser device 140 Measure the height difference of the inner cone surface of the dental implant in different fixtures. For example, as shown in FIG. 1 , there are eight jigs 113 , the second sliding members 170 are perpendicular to the first sliding members 160 , and the first sliding members 160 are slidably mounted on the second sliding members 170 . Specifically, the fixtures 113 are all disposed on the positioning seat 112 for placing different types of dental implants 100 , so as to detect the different types of dental implants 100 , and place several dental implants 100 in the fixture 113 Sequential measurement reduces assembly actions and improves inspection efficiency. The second sliding member 170 and the first sliding member 160 are perpendicular to each other in the horizontal direction, that is, the second sliding member 170 is arranged in the left-right direction, the first sliding member 160 is slidably installed on the second sliding member 170, and the first sliding member 160 is along the When moving in the front-rear direction, the frame 111 on the first sliding member 160 and the dental implant 100 on the frame 111 are driven to move in the front-rear direction, and the relative position between the dental implant 100 and the first laser device 140 in the front-rear direction is adjusted. , so that the first position D1 of the inner cone surface of the dental implant 100 placed in the fixture 113 is located just below the place where the first laser device 140 emits laser light. Since there are several fixtures 113 , the second sliding member 170 can also drive the mounting assembly 110 to move left and right to switch the fixtures 113 detected by the first laser device 140 . The inner cone surface of the implant 100 is inspected, which improves the inspection efficiency and reduces the multiple assembly actions.

In some embodiments of the present invention, the displacement measuring device is a second laser device 150 , the second laser device 150 is disposed on the first sliding member 160 , and the second laser device 150 is located in the front-rear direction of the mounting assembly 110 , the second laser device 150 is The laser device 150 measures the distance change to the installation assembly 110, and feeds back the measured distance signal to the control device. The control device obtains the horizontal difference between the first position D1 and the second position D2 of the dental implant 100 according to the received distance signal. displacement x. For example, as shown in FIG. 1 , the second laser device 150 is mounted on the first sliding member 160 , and the second laser device 150 is located in the front-rear direction of the mounting assembly 110 . Specifically, the second laser device 150 is mounted on the first sliding member 160. When the dental implant 100 and the first laser device 140 move relative to each other and the first laser device 140 detects the height difference y, the second laser device 150 emits laser light synchronously , measure the relative movement distance between the dental implant 100 and the first laser device 140 by laser, obtain the relative movement distance information of the dental implant 100 and the first laser device 140, convert the distance information into a distance signal and feed it back to the control device, the control device The displacement x in the horizontal direction from the first position D1 to the second position D2 of the dental implant 100 is obtained according to the received distance signal.

In some embodiments of the present invention, the displacement measuring device is a CCD camera 151, the CCD camera 151 is disposed on the second sliding member, and the CCD camera 151 is located in the left and right directions of the mounting assembly 110, and the CCD camera 151 captures the position of the mounting assembly by photographing The image number, the image signal is fed back to the control device, and the control device obtains the horizontal displacement x of the first position D1 and the second position D2 of the dental implant 100 according to the received image signal. For example, as shown in FIG. 6 , the CCD camera 151 is disposed on the second sliding member 170 and is located in the left-right direction of the mounting assembly 110 . Specifically, the displacement measuring device can also be a CCD camera 151. The CCD camera 151 is located in the left and right direction of the dental implant 100, and obtains the image information of the movement of the installation component 110 during detection by photographing, and converts the image information into digital signals and feeds them back to the In the control device, the control device measures the distance moved by the mounting assembly 110 according to the received digital signal, thereby obtaining the displacement x in the horizontal direction between the first position D1 and the second position D2 of the inner cone surface of the dental implant 100 .

The method for detecting the coupling taper of a dental implant according to an embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 5 with a specific embodiment. It should be understood that the following description is illustrative only and not specific limitation of the invention.

The method for detecting the connecting taper of a dental implant in this embodiment includes the following steps: placing the dental implant 100 under the first laser device 140 , and setting the displacement measuring device on one side of the dental implant 100 ; rotating the dental implant 100 , change the angle between the dental implant 100 and the horizontal plane, the first position D1 of the inner conical surface after the dental implant 100 is rotated is located just below the place where the first laser device 140 emits the laser, record the rotation between the dental implant 100 and the horizontal plane The inclination angle θ; the first laser device 140 emits laser light to the inner cone surface of the dental implant 100, and the laser moves from the first position D1 of the dental implant 100 to the second position D2 of the dental implant 100, and the first position D1 and the The height difference y between the second positions D2, and the displacement measuring device simultaneously detects the displacement x of the first position D1 and the second position D2 of the dental implant 100 in the horizontal direction; and the displacement x, the taper α of the dental implant 100 is obtained.

Specifically, by arranging the rotary encoder 180 on one side of the frame 111 and rotatably connecting the rotary encoder 180 with the positioning seat 112, the inclination angle θ between the rotated dental implant 100 and the horizontal plane is obtained; The first laser device 140 obtains the height difference y of the inner conical surface of the dental implant 100 by measuring the change in the distance to the inner conical surface of the dental implant 100 , so the first position of the inner conical surface of the dental implant 100 after rotation should be in an acceptable position. The position detected by the first laser device 140 . When detecting the dental implant 100, the first laser device determines the first position D1 and the second position D2 on the inner cone surface of the dental implant 100, and the first height H1 corresponding to the first position D1 and the second position D2 corresponding to The dental implant 100 is placed on the fixture 113 of the installation assembly 110, and there are several fixtures 113. When the installation assembly 110 slides back and forth along the first sliding member 160, it drives the dental implant 100 to move forward and backward. Sliding in the direction, the first laser device 140 measures the distance change to the inner cone surface to obtain the height difference y between the first height H1 and the second height H2 of the inner cone surface of the dental implant 100 . The second laser device 150 is installed on the first sliding member 160 . While the first laser device 140 detects the dental implant 100 , the second laser device 150 synchronously measures the moving distance of the mounting assembly 110 , that is, the inner cone surface of the dental implant 100 is the first The amount of displacement x in the horizontal direction between a position D1 and a second position D2. After obtaining the distance information of the height difference y and the displacement amount x, the distance information is converted into a distance signal and fed back to the control device. The control device obtains the height difference y and the displacement amount x according to the received distance signal, and according to the height difference y and displacement Measure x to obtain the angle β between the inner cone surface of the dental implant 100 and the horizontal plane, and then convert the inclination angle θ into an angle signal and feed it back to the control device. β obtains the taper α of the inner tapered surface of the dental implant 100 . Since there are several fixtures 113 , several dental implants 100 can be placed at the same time, and the relative positions between different fixtures 113 and the first laser device 140 are switched by sliding the mounting assembly 110 on the second sliding member 170 , and sequentially Measuring the dental implants 100 on different fixtures 113 ; setting the second sliding member 170 can also adjust the positions of the dental implant 100 to be measured and the first laser device 140 in the left-right direction.

According to the method for detecting the connection taper of the dental implant 100 according to the embodiment of the present invention, by setting in this way, at least some of the following effects can be achieved: rotating the dental implant 100, changing the angle between the dental implant 100 and the horizontal plane, and rotating the encoder 180 to obtain the inclination angle θ of the dental implant 100 after the rotation; the first laser device 140 is located above the dental implant 100, and drives the dental implant 100 to move in the front-rear direction through the mounting assembly 110, and the laser of the first laser device 140 is transmitted from the dental implant The first position D1 on the body 100 is scanned to the second position D2, and the height difference y between the first height H1 and the second height H2 of the dental implant 100 is measured; when the first laser device 140 detects the height difference y of the dental implant 100 , the second laser device 150 simultaneously measures the distance to the installation assembly 110 to obtain the displacement x of the first position D1 and the second position D2 of the dental implant 100 in the horizontal direction. The control device measures the taper α of the dental implant 100 according to the inclination angle θ, the height difference y and the displacement amount x. In the detection process, only three data of height difference y, displacement x and tilt angle θ need to be measured to get the result, the detection speed is fast, and the detection efficiency is improved; the inner cone surface will not be worn during the detection process, so The measured taper α has high precision. It is also possible to drive the dental implant 100 to rotate by rotating the fixture 113, so as to directly and frequently detect different positions of the inner cone surface of the dental implant 100, thereby improving the accuracy of the detection results.

Several fixtures 113 are provided on the positioning seat 112 , the positions of different fixtures 113 and the first laser device 140 can be switched through the second sliding member 170 , and a number of dental implants 100 to be detected can be placed on the corresponding fixtures 113 can be detected in sequence, which reduces the repetitive action of placing the dental implant 100 and improves the detection efficiency. By setting the limit sensor 120 and/or the optical imaging device 130, the relative position between the dental implant 100 and the first laser device 140 can also be acquired, and after the position information is fed back to the control device, the dental implant 100 and the first laser device 140 can be adjusted. The relative positions of the laser devices 140 ensure that the laser light of the first laser device 140 can enter the inner cone surface of the dental implant 100 .

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specifically," or "some examples", etc., are meant to incorporate the embodiments A particular feature, structure, material, or characteristic described by an example or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, The scope of the invention is defined by the claims and their equivalents.

Claims

A method for detecting the taper of a dental implant connection, comprising the following steps:

The dental implant is placed under the first laser device, and the displacement measuring device is arranged on one side of the dental implant;

Rotate the dental implant to change the angle between the dental implant and the horizontal plane. After the dental implant is rotated, the first position of the inner cone surface is located below the place where the first laser device emits laser light. the inclination angle of the dental implant to the horizontal plane;

The first laser device emits laser light to the inner cone surface of the dental implant, and the laser light moves from a first position of the dental implant to a second position of the dental implant to obtain the first position The height difference from the second position, and the displacement measuring device synchronously detects the relative movement distance of the dental implant and the first laser device to obtain the displacement of the inner cone surface of the dental implant;

The control device obtains the taper of the dental implant according to the inclination angle, the height difference and the displacement amount.
The method for detecting the connecting taper of a dental implant according to claim 1, characterized in that it includes an installation component, the installation component includes a frame, a positioning seat and a fixture, and the dental implant is placed on the fixture. In the tool, the fixture is rotatably installed on the positioning seat, and the positioning seat is rotatably installed on the frame. In the "control device, according to the inclination angle, the height difference and the displacement, the After the taper of the dental implant" step, the following steps are also included:

The fixture rotates around the axis, and the first laser device detects the inner cone surfaces at different positions of the dental implant after the rotation, and repeatedly detects the height difference and the displacement to obtain the dental implant The taper of the inner cone at different locations.
The method for detecting the connecting taper of a dental implant according to claim 2, characterized in that, after "rotating the dental implant to change the angle between the dental implant and the horizontal plane, after the dental implant is rotated, the The first position of the tapered surface is located below the place where the first laser device emits laser light, and after the step of recording the inclination angle between the dental implant and the horizontal plane after the rotation, the following steps are also included:

A limit sensor is arranged on the positioning seat, and the limit sensor is located on one side of the fixture, and the relative position between the dental implant and the first laser device is detected by the limit sensor , and feedback the detected detection signal to the control device;

The control device adjusts the first position of the inner cone surface of the dental implant to be below where the first laser device emits laser light according to the received detection signal.
The method for detecting the connecting taper of a dental implant according to claim 2, characterized in that, after "rotating the dental implant to change the angle between the dental implant and the horizontal plane, after the dental implant is rotated, the The first position of the tapered surface is located below the place where the first laser device emits laser light, and after the step of recording the inclination angle between the dental implant and the horizontal plane after the rotation, the following steps are also included:

An optical imaging device is arranged above the fixture, and an image signal of the relative position of the dental implant and the first laser device is acquired by the optical imaging device, and the image signal is fed back to the control device;

The control device adjusts the first position of the inner cone surface of the dental implant to be below where the first laser device emits laser light according to the received image signal.
The method for detecting the connecting taper of a dental implant according to claim 2, further comprising: a rotary encoder is provided on one side of the frame, the rotary encoder is connected to the positioning seat, and The rotary encoder measures the inclination angle of the dental implant and the horizontal plane after rotation, and feeds the measured inclination angle to the control device through an angle signal.
The method for detecting the coupling taper of a dental implant according to claim 2, further comprising a first sliding member, the first sliding member is arranged in the front-rear direction, and the installation component is slidably installed on the first sliding member. On the sliding piece, the mounting assembly slides on the first sliding piece, adjusts the positions of the dental implant and the first laser device, and moves the first position of the inner cone surface of the dental implant to the first laser device below where the laser is emitted;

The first laser device emits laser light to the inner cone surface of the dental implant, slides on the first sliding member through the mounting assembly, and the laser light moves from the first position of the dental implant to the desired position. The second position of the dental implant is obtained, and the height difference between the first position and the second position is obtained.
The method for detecting the connecting taper of a dental implant according to claim 6, wherein the fixture is provided with a plurality of jigs, and the method for detecting the connecting taper of a dental implant further comprises a second sliding member, and the The first sliding member is slidably mounted on the second sliding member, the first sliding member and the second sliding member are perpendicular to each other, and the mounting assembly moves in the left-right direction according to the second sliding member, and switches between the two sliding members. The position of the fixture and the first laser device, and the first laser device measures the height difference of the inner cone surface of the dental implant in different fixtures.
The method for detecting the taper of dental implant connection according to claim 6, wherein the displacement measuring device is a second laser device, the second laser device is arranged on the first sliding member, and the The second laser device is located in the front-rear direction of the mounting assembly, the second laser device measures the distance change to the mounting assembly, and feeds back the measured distance signal to the control device, and the control device is based on the received The distance signal obtains the displacement amount of the first position and the second position of the dental implant in the horizontal direction.
The method for detecting the connecting taper of a dental implant according to claim 7, wherein the displacement measuring device is a CCD camera, the CCD camera is arranged on the second sliding member, and the CCD camera is located at the In the left and right direction of the installation assembly, the CCD camera captures an image signal of the position of the installation assembly, and feeds back the image signal to the control device, and the control device obtains the first position of the dental implant according to the received image signal. The displacement between the first position and the second position in the horizontal direction.