KR102266641B1 - Handle for 3-dimensional intraoral scanner - Google Patents

Abstract

The grip angle of the intraoral scanner can be finely adjusted to solve the user's inconvenience, and a 3D intraoral scanner handle is provided that can acquire intraoral data more efficiently.
To this end, the handle for a three-dimensional intraoral scanner according to the present invention can be drawn in and out in the oral cavity, and an opening is formed on one surface orthogonal to the longitudinal direction among one end of the longitudinal direction, and through the opening, the inside of the oral cavity In the handle for a three-dimensional intraoral scanner used in a three-dimensional intraoral scanner, the image of which is introduced into the interior in the form of light, at least partially wrapped around the outer peripheral surface of the scanner in the circumferential direction, the scanner holding unit detachably coupled to the scanner; , a grip portion protruding from the outer peripheral surface of the scanner holding portion.

Description

Handle for 3-D intraoral scanner {HANDLE FOR 3-DIMENSIONAL INTRAORAL SCANNER}

The present invention relates to a handle for a three-dimensional intraoral scanner.

In general, dental hospitals and the like perform treatment and treatment on damaged teeth of a patient through an impression taking process of manufacturing a plaster model of a patient's teeth.

As described above, in the impression acquisition process of producing a plaster model, problems such as consumption of materials and cross-infection, the possibility of damage to the manufactured model, and preservation problems may occur.

In particular, as an impression of a patient's damaged teeth is manually obtained using an impression material, there is a problem in that accurate manufacturing values cannot be provided when manufacturing a prosthesis.

That is, it is not possible to determine the degree of error with respect to the three-dimensional information of the prosthesis manufactured, and for this reason, there is a problem that the prosthesis actually manufactured does not match in the oral cavity of the patient.

Therefore, in recent years, a three-dimensional intraoral scanner capable of obtaining accurate three-dimensional information on damaged teeth without using an impression material and manufacturing a prosthesis having an accurate dimension through this has been widely used.

In Republic of Korea Patent Publication No. 10-1874547 (published on July 4, 2018) (hereinafter referred to as 'prior art'), by arranging an optical path changing unit at the front end of the imaging sensor, the degree of freedom of arrangement of the imaging board on which the imaging sensor is disposed A 'three-dimensional intraoral scanner' that can increase the height of the body and maximize the usability of the internal space is disclosed.

When scanning dental data of a patient lying down using the three-dimensional intraoral scanner, it is necessary to precisely move the scanner in order to accurately scan the data and shorten the scan time. Therefore, data scan is performed by freely rotating or moving the direction of the scanner, such as the upper and lower jaws.

However, in the prior art, an 'opening' for irradiating light into the oral cavity of a patient and inputting an image inside the oral cavity in the form of light is formed on one side orthogonal to the longitudinal direction among one end of the scanner in the longitudinal direction Therefore, in a state where the user's position is fixed, when any one of the upper and lower jaws of the patient is scanned with the scanner and the other is scanned with the scanner, the scanner must be rotated 180 degrees in the circumferential direction .

Accordingly, the prior art has a problem in that when the scanner is rotated and moved, it is often inconvenient to hold or scan the scanner depending on the gripping method or the user's body structure.

Republic of Korea Patent Publication No. 10-1874547 (2018.07.04. Announcement date)

The problem to be solved by the present invention is to provide a handle for a three-dimensional intraoral scanner that can precisely adjust the grip angle of the intraoral scanner to solve the user's discomfort, and to obtain intraoral data more efficiently.

Another problem to be solved by the present invention is to provide a handle for a three-dimensional intraoral scanner that can easily change the position of the oral scanner when scanning the upper and lower teeth using the oral scanner.

Another problem to be solved by the present invention is to provide a handle for a three-dimensional intraoral scanner provided with a user input that can operate the intraoral scanner.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the handle for a three-dimensional intraoral scanner according to the present invention is for holding the three-dimensional intraoral scanner. The three-dimensional intraoral scanner can be drawn in and out of the oral cavity. The three-dimensional intraoral scanner has an opening formed on one surface orthogonal to the longitudinal direction among one end of the longitudinal direction, and the image inside the oral cavity is introduced into the interior in the form of light through the opening. The handle for a three-dimensional intraoral scanner according to the present invention consists of a scanner holding part and a grip part. The scanner holding part surrounds at least a part of the outer peripheral surface of the scanner in the circumferential direction, and is detachably coupled to the scanner. The grip part is disposed to protrude from an outer peripheral surface of the scanner holding part.

An opening may be formed in the scanner holding part. The opening may expose a user input unit disposed on an outer peripheral surface of the scanner.

The scanner holding unit may include an outer holding unit and an inner holding unit. The grip part may be protruded from an outer circumferential surface of the outer holding part. The inner holding part may be disposed on an inner circumferential surface of the outer holding part. The inner holding part may be formed to be softer than the outer holding part and have an elastic force in close contact with the outer peripheral surface of the scanner.

The scanner holding unit may include an annular outer wheel, an annular inner wheel, and a plurality of balls. The grip part may be protruded from an outer circumferential surface of the outer wheel. The inner wheel may be rotatably disposed in the outer wheel in a circumferential direction. The inner wheel may surround an outer circumferential surface of the scanner in a circumferential direction. The plurality of balls may be disposed between the outer wheel and the inner wheel. The plurality of balls may enable the inner wheel to rotate in a circumferential direction.

The plurality of balls may include a plurality of first balls and a plurality of second balls. The second plurality of balls may be disposed to be spaced apart from the first plurality of balls in a longitudinal direction of the scanner.

The grip part may extend in the same radial direction as the scanner holding part.

The grip part may extend by being inclined at a predetermined angle with respect to a radial direction of the scanner holding part.

The scanner holding unit may be rotatably operated with respect to the grip unit while maintaining a predetermined angle of disposition of a reflective mirror and a lens provided in the scanner.

The grip unit may include a user input unit for operating the scanner.

A first contact terminal may be disposed on an outer circumferential surface of the scanner. A second contact terminal may be provided on an inner circumferential surface of the scanner holding part. The second contact terminal may be in contact with the first contact terminal. The user input unit may be operated by being electrically connected to the second contact terminal.

The details of other embodiments are included in the detailed description and drawings.

The handle for a three-dimensional intraoral scanner according to the present invention is composed of a scanner holding part and a grip part, so that it is possible to easily scan the inside of the patient's mouth by holding the grip part. In particular, it is possible to finely adjust the grip angle of the oral scanner when scanning an area that is somewhat difficult to scan due to spatial restrictions in the patient's oral cavity, thereby resolving user discomfort and enabling more efficient intraoral data acquisition. It works.

In addition, when scanning one of the upper and lower jaws of the patient with the scanner and then scanning the other, the handle is moved while the scanner is mounted on the scanner holding part so that the opening of the scanner is located in the opposite direction. By rotating the scanner 180 degrees in the circumferential direction, or rotating the scanner 180 degrees in the circumferential direction while the scanner is mounted on the scanner holding unit, there is also an effect that can easily scan the inside of the oral cavity.

In addition, when the handle is coupled to the scanner, the first contact terminal provided on the outer peripheral surface of the scanner and the second contact terminal provided on the inner peripheral surface of the scanner holding part are in contact with each other. In addition, a user input unit electrically connected to the second contact terminal is provided in the grip unit. Accordingly, the user can easily operate the scanner by manipulating the user input unit provided in the grip unit while holding the grip unit.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view showing a three-dimensional intraoral scanner to which a handle for a three-dimensional intraoral scanner according to embodiments of the present invention is applied;
Figure 2 is an exploded perspective view of Figure 1;
3 is a plan sectional view of FIG. 1;
4 is a cut-away perspective view of FIG. 1;
5 is a perspective view showing an optical path using a pair of lenses in the configuration of FIG. 1;
Fig. 6 is a plan view of Fig. 5;
7 is a side cross-sectional view of FIG. 5;
8 is a perspective view showing a handle for a three-dimensional intraoral scanner according to a first embodiment of the present invention;
9 is a perspective view showing a state in which the scanner is coupled to the handle for a three-dimensional intraoral scanner according to the first embodiment of the present invention;
10 is a longitudinal cross-sectional view of a state in which the scanner is coupled to the handle for a three-dimensional intraoral scanner according to the first embodiment of the present invention;
11 is a side view of a state in which the scanner is coupled to a handle for a three-dimensional intraoral scanner according to a first embodiment of the present invention, (a) is a view showing the position of the handle when scanning the mandible in the oral cavity, (b) is the oral cavity Drawing showing the position of the handle when scanning the maxilla within
12 is a perspective view showing a handle for a three-dimensional intraoral scanner according to a second embodiment of the present invention;
13 is a longitudinal cross-sectional view of a handle for a three-dimensional intraoral scanner according to a second embodiment of the present invention;
14 is a cross-sectional view of a handle for a three-dimensional intraoral scanner according to a second embodiment of the present invention;
15 is a perspective view showing a state in which the scanner is coupled to a handle for a three-dimensional intraoral scanner according to a second embodiment of the present invention;
16 is a perspective view showing a handle for a three-dimensional intraoral scanner according to a third embodiment of the present invention.

Hereinafter, a handle for a three-dimensional intraoral scanner according to embodiments of the present invention will be described with reference to the drawings.

First, a look at the three-dimensional intraoral scanner to which the handle for the three-dimensional intraoral scanner according to the embodiments of the present invention is applied.

Figure 1 is a perspective view showing a three-dimensional intraoral scanner to which a handle for a three-dimensional intraoral scanner according to an embodiment of the present invention is applied, Figure 2 is an exploded perspective view of Figure 1, Figure 3 is a plan sectional view of Figure 1, Figure 4 is Figure 1 is a cut-away perspective view of

1 to 4, the three-dimensional intraoral scanner 1 to which the handle for the three-dimensional intraoral scanner according to embodiments of the present invention is applied, includes a case 10 that can be put in and out of the oral cavity.

At least one camera 20 may be disposed inside the case 10 . That is, at least one camera 20 may be provided as a pair of stereo cameras 20 and disposed inside the case 10 as shown in FIG. 2 . In addition, at least one camera 20 is not shown in the drawings, but may be provided as a single camera 20 and disposed inside the case 10 .

When the at least one camera 20 is arranged as a pair of stereo cameras 20, the light incident from one end of the case 10 is spaced apart in the width direction of the case 10 to pass through different paths, respectively. can be placed so Hereinafter, for convenience of description, it is assumed that at least one camera 20 is provided as a pair of stereo cameras 20 and disposed inside the case 10 , but a pair of stereo cameras 20 . Instead, it should be noted that the application of a single camera 20 is not completely excluded.

The 'light' refers to a visible light region that can be seen by the human eye, and refers to the appearance of the inside of the patient's mouth to be scanned (hereinafter, abbreviated as 'image').

Accordingly, the case 10 may be provided with an opening 16 that is opened so that an image is introduced into the inside in the form of light through one end. The opening 16 may be an entrance through which light from the outside of the case 10 flows into the inside of the case 10 . The light incident through the opening 16 passes through the pair of lenses 20 through different optical paths, respectively. The light transmitted through the pair of lenses 20 is received through imaging sensors 31b and 32b provided in imaging boards 31a and 32a to be described later, and image information is generated in the imaging sensors 31b and 32b, respectively. can do.

Here, since the image can be secured as two image data at the same time, if the separation distance of the pair of lenses 20 and the focal length of the target point photographed through each lens are known, the three-dimensional image data of the image can be secured. do.

A pair of lenses 20, although not specifically shown, may be provided to enable focus adjustment for an image in the oral cavity.

To this end, an embodiment of the three-dimensional intraoral scanner 1 according to the present invention is an imaging board 31a having an imaging sensor 31b, 32b for imaging the light transmitted through a pair of lenses 20, respectively, 32a) may be further included. In addition, an embodiment of the three-dimensional intraoral scanner (1) according to the present invention is an electric component for controlling the operation of a pair of lenses 20 is mounted on the camera control board and electronic components for processing the scanned image It may further include a mounted scanning control board.

1 to 3 , the case 10 is configured such that the above-described pair of lenses 20 , imaging boards 31a and 32a , a camera control board (not shown) and a scanning control board (not shown) are embedded therein. It serves to provide a certain space.

Referring to FIG. 2 , in more detail, the case 10 includes a lower case 12 having a predetermined space in which the components are embedded, and is provided on the upper side of the lower case 12 , and is detachably attached to the lower case 12 . and a main body case 11 made of an upper case 13 that is possibly coupled to cover the components.

A user input unit 15 may be provided on the outer peripheral surface of the case 10 . The user input unit 15 is for operating the scanner 1 and may include a sensing device such as pressure or illuminance, a button, a keypad, a touch pad, and the like. When the user presses the user input unit 15 , the scanner 1 may be operated. The user input unit 15 may be installed in the input unit installation hole 19 formed in the upper case 13 .

In addition, the case 10 is coupled to one end of the body case 11 , the above-described opening 16 is formed, and light incident into the body case 11 through the opening 16 and the opening 16 . It may further include a tip case 14 having an input/exit light path portion 17 for guiding light emitted from the inside of the body case 11 through the .

Here, the light incident into the body case 11 through the opening 16 (hereinafter, referred to as 'incident light') means an image that is an image of the inside of the patient's oral cavity, and the body case 11 through the opening 16 . (11) The light emitted from the inside (hereinafter referred to as 'exit light') refers to irradiation light emitted from a light projector 70 to be described later.

The internal structure of the tip case 14 may have a light guide structure in which the incident light and the emitted light are easily irradiated to the inside and outside of the case 10 . In addition, the opening 16 may be formed to be opened in one direction orthogonal to the longitudinal direction of the tip case 14 . That is, one end of the scanner 1 in the longitudinal direction may be formed on one surface orthogonal to the longitudinal direction of the scanner 1 . In the drawing, the opening 16 may be formed on the lower surface of one end of the scanner 1 in the longitudinal direction. Meanwhile, a reflective mirror 60 to be described later may be disposed in the opening 16 .

One end of the pair of lenses 20, as described above, is arranged to be converged on the tip case 14 side, it may be arranged to overlap the tip case 14 side by a predetermined distance. In addition, the other end of the pair of lenses 20 may be provided to be connected to the camera mounting unit 50 fixed to the inside of the body case 11 .

On the other hand, one embodiment of the three-dimensional intraoral scanner 1 according to the present invention, as shown in FIGS. 2 to 4, is disposed inside the case 10, through between a pair of lenses 20 It may further include a light projector 70 that emits a predetermined output light, but irradiates the emitted light through an opening 16 formed at one end of the case 10 .

One embodiment of the three-dimensional intraoral scanner 1 according to the present invention, but arrange the components as described above inside the case 10, the tip case 14 so as to facilitate the insertion and withdrawal into the patient's oral cavity as much as possible. While forming long and slim, the body case 11 also proposes an optimal arrangement structure formed with a minimum thickness.

Here, in one embodiment of the three-dimensional intraoral scanner 1 according to an embodiment of the present invention, the tip case 14 is elongated to be easily drawn into the patient's oral cavity, and the opening 16 and a pair of A pair of lenses 20, an imaging sensor ( It may relate to the design of the position of the imaging board 31a, 32a provided with 31b, 32b.

Referring to FIG. 2 , in more detail, one end of the pair of lenses 20 is provided to protrude toward the tip case 14 inside the case 10, and the other end of the pair of lenses is inserted. In addition to being installed, the camera mounting unit 50 that forms an optical waveguide that is a path of the incident light passing through the pair of lenses 20 or the light emitted from the light projector 70 may be disposed.

The optical waveguide formed in the camera mounting unit 50 may be provided in a darkroom form so that the incident light incident from the opening 16 and the light emitted from the light projector 70 are not mutually partitioned and affected.

That is, the optical waveguide includes an outgoing light path part 53 providing an optical path to the tip case 14 side of the emitted light irradiated from the light protector, and one lens among the pair of lenses 20 . It may include one side incident light path unit 51 providing an optical path of the incident light, and the other side incident light path unit 52 providing an optical path of incident light incident through the other lens among the pair of lenses 20 . .

Here, each of the outgoing light path unit 53, the one incident light path unit 51, and the other incident light path unit 52 is provided to be partitioned from each other, so that the light of each path does not affect each other at all.

In addition, the light protector is located in the central portion of the other end of the pair of lenses 20 spaced apart from each other by a predetermined distance in the width direction of the case 10, the outgoing light path unit 53 is one side incident light path unit ( 51 ) and the other incident light path unit 52 .

The one side incident light path unit 51 and the other side incident light path unit 52 are formed to coincide with the longitudinal direction of the corresponding lens so that the incident light incident from the pair of lenses 20 is transmitted, respectively, the camera mounting unit (50) may be formed to be opened to one side and the other side.

Here, the imaging boards 31a and 32a on which the imaging sensors 31b and 32b are integrated may be vertically disposed so as to be in close contact with one side wall in the width direction and the other side wall in the width direction of the case 10 . More specifically, the imaging boards 31a and 32a of one side are disposed to be in close contact with one side of the camera mounting unit 50 , and may be disposed between one side wall of the case 10 in the width direction. In addition, the imaging boards 31a and 32a of the other side may be disposed between the other side wall of the case 10 in the width direction even if the imaging boards 31a and 32a are disposed to be in close contact with the other side surface of the camera mounting unit 50 . In this case, the imaging boards 31a and 32a on one side are provided so that the imaging sensors 31b and 32b integrated thereon are exposed to the incident light path part 51 on the one side, and the imaging boards 31a and 32a on the other side are integrated therein. The imaging sensors 31b and 32b may be provided to be exposed to the other incident light path unit 52 .

On the other hand, one embodiment of the three-dimensional intraoral scanner (1) according to the present invention, the imaging sensor (31b, 32b) integrated on the imaging board (31a, 32a) the path of the incident light that has passed through a pair of lenses 20, respectively ) may further include a pair of light path changing units 41 and 42 arranged to change the direction, respectively.

One of the pair of light path changing units 41 and 42 converts the incident light transmitted through the one side incident light path unit 51 to the imaging sensors 31b and 32b integrated on the one side imaging boards 31a and 32a. One side of the optical path changing mirror 41 for changing the path of the incident light to be irradiated, the other of the pair of light path changing units 41, 42, the incident light transmitted through the other incident light path unit 52 to the other side It may be the other optical path changing mirror 42 that changes the path of the incident light so as to be irradiated with the imaging sensors 31b and 32b integrated in the imaging boards 31a and 32a of the .

Here, the pair of light path changing units 41 and 42 may include a total reflection mirror capable of total reflection of light. However, it is not necessarily limited to a total reflection mirror, and may include any optical element capable of total reflection.

In addition, the pair of light path changing units 41 and 42 may be provided as a beam splitter. That is, the pair of light path changing units 41 and 42 may be provided as a beam splitter to separate incident light into two beams at a specified ratio and change the light path change unit 41 , 42 .

One embodiment of the three-dimensional intraoral scanner 1 according to the present invention is to secure the three-dimensional image data of the internal appearance (ie, image) of the patient's oral cavity using a pair of lenses 20 as a major technical gist do.

However, as described above, one end (referring to the direction in which the tip case 14 is provided in the drawing) of the pair of lenses 20 faces the reflective mirror 60 provided in one opening 16, respectively. On the other hand, the other end of the pair of lenses 20 (referring to the direction in which the light projector 70 is provided in the drawing) is arranged to have an angle converging to each other so as to transmit the incident light passing through each in a straight direction. should have a structure.

Accordingly, the pair of imaging boards 31a and 32a should be spaced apart from each other in the width direction of the case 10 so as to be orthogonal to the straight direction of the other end of each of the pair of lenses 20 . However, in this case, there is a risk of increasing the width direction thickness of the main body case 11 by the length of the pair of imaging boards 31a and 32a.

One embodiment of the three-dimensional intraoral scanner 1 according to the present invention, as described above, the incident light path parts 51 and 52 are formed to be opened to one side and the other side of the camera mounting unit 50, respectively, and as well as , The installation position of the imaging board (31a, 32a) is vertically disposed between one side and the other side of the camera mounting unit 50 and one side wall and the other side wall of the case 10, and passes through a pair of lenses 20 By providing a pair of optical path changing units 41 and 42 for changing the optical path of one incident light, the body case 11 is slim so that a measurer can easily grip and use it with only his thumb, forefinger and middle finger. can do.

The pair of optical path changing units 41 and 42 includes the incident light passing through the pair of lenses 20 of the respective imaging sensors 31b and 32b provided on the pair of imaging boards 31a and 32a. It may be arranged to have a reflector surface of an angle incident on one surface at a predetermined angle.

To this end, the pair of optical path changing units 41 and 42 may be disposed so that the reflector surface is inclined with respect to the longitudinal direction of the case 10 . That is, the one-sided optical path changing mirror 41 is refracted by the reflector surface of the one optical path changing mirror 41 after the incident light that has passed through the one-side lens 21 is incident through the one-side incident light path unit 51 , It may be provided to be irradiated to the imaging sensors 31b and 32b of the one side imaging board 31a. Similarly, the other side optical path changing mirror 42 is refracted by the reflector surface of the other side optical path changing mirror 42 after the incident light that has passed through the other side lens 22 is incident through the other side incident light path unit 52, It may be provided to be irradiated to the imaging sensors 31b and 32b of the other imaging board 31b.

On the other hand, the opening 16 formed in the tip case 14 may be provided with a reflective mirror 60 as described above. The reflection mirror 60 serves to reflect the incident light incident into the body case 11 and the exit light emitted from the inside of the body case 11 in a predetermined path.

In particular, the reflective mirror 60 facilitates photographing through the pair of lenses 20 through the opening 16 formed to be opened in any one direction orthogonal to the longitudinal direction of the case 10 .

The operation of the three-dimensional intraoral scanner 1 according to the present invention configured as described above will be described in more detail with reference to the accompanying drawings (in particular, FIGS. 5 to 7 ).

5 is a perspective view illustrating an optical path using a pair of lenses in the configuration of FIG. 1 , FIG. 6 is a plan view of FIG. 5 , and FIG. 7 is a side cross-sectional view of FIG. 5 .

The measurer presses the user input unit 15 provided on the upper portion of the case 10 to scan using an embodiment of the three-dimensional intraoral scanner 1 according to the present invention into the oral cavity of the patient.

Then, as shown in FIGS. 5 and 7 , the light emitted from the light protector is irradiated. The outgoing light emitted from the light protector sequentially passes through the outgoing light path part 53 of the optical waveguide formed in the camera mounting part 50 and the input/exit light path part 17 formed in the tip case 14 to the opening 16 ) is irradiated to the side, and is irradiated into the oral cavity of the patient through the opening 16 by the reflecting mirror 60 .

At the same time, as shown in FIGS. 5 and 6 , a pair of lenses 20 are operated by the measurer pressing the user input unit 15, so that two image data having the same focus at a certain point in the image can be obtained

At this time, the patient's oral image is present in the form of light by the emitted light, and, in contrast to the emitted light, is sequentially incident into the tip case 14 through the opening 16, and passes through the reflection mirror 60 is changed, substantially as each of the pair of lenses 20 for photographing the reflective surface of the reflection mirror 60 , the above-described input/exit light path unit 17 , the corresponding lens and the corresponding incident light path unit 51 among the optical waveguide , 52) through In addition, by irradiating the imaging sensors 31b and 32b of the corresponding imaging boards 31a and 32a by the respective optical path changing units 41 and 42, two pieces of predetermined image data can be secured at the same time. Based on the two image data secured in this way, three-dimensional data regarding the patient's oral image can be easily obtained.

On the other hand, in the three-dimensional intraoral scanner 1 as described above, since the opening 16 is formed on one surface orthogonal to the longitudinal direction of the one end in the longitudinal direction of the scanner 1, of the patient's maxilla and mandible, When one is scanned with the scanner 1 and the other is scanned with the scanner 1 , after rotating the scanner 1 by 180 degrees in the circumferential direction, the other must be scanned with the scanner 1 .

That is, after the user scans the patient's mandible with the opening 16 of the scanner 1 facing downward, the user moves the scanner 1 in the circumferential direction so that the opening 16 faces upward in order to scan the patient's upper jaw. After rotating 180 degrees, the upper jaw of the patient should be scanned with the scanner (1). Conversely, after the user scans the patient's upper jaw with the opening 16 of the scanner 1 facing upward, the user rotates the scanner 1 in the circumferential direction so that the opening 16 faces downward in order to scan the patient's mandible. After rotating 180 degrees, the patient's mandible should be scanned with the scanner (1).

However, since the scanner 1 is formed only in the longitudinal direction, it is not easy for the user to adjust the angle of the wrist while holding the scanner 1, so the scanner 1 is held by the user while the scanner 1 is held. It may not be easy to precisely rotate (1) in the circumferential direction, and it may not be easy to precisely move the position of the scanner (1) even when scanning the inside of the patient's oral cavity.

In order to solve this problem, the handle 100, 200, 300 for a three-dimensional intraoral scanner according to embodiments of the present invention will be described below.

Figure 8 is a perspective view showing a handle for a three-dimensional intraoral scanner according to a first embodiment of the present invention, Figure 9 is a perspective view showing a state in which the scanner is coupled to the handle for a three-dimensional intraoral scanner according to the first embodiment of the present invention; 10 is a longitudinal cross-sectional view of a state in which the scanner is coupled to the handle for a three-dimensional intraoral scanner according to the first embodiment of the present invention.

8 to 10 , the handle 100 for a three-dimensional intraoral scanner according to the first embodiment of the present invention may include a scanner holding unit 110 and a grip unit 120 .

The scanner holding unit 110 may be detachably coupled to the scanner 1 by wrapping at least a part of the outer circumferential surface of the scanner 1 in the circumferential direction. The scanner holding unit 110 may surround at least a portion of the outer peripheral surface of the scanner 1 in which the user input unit 15 is installed in the circumferential direction.

An opening 115 may be formed at one side of the scanner holding unit 110 . The scanner holding unit 110 may have an opening 115 formed on one side to form a part of an annular shape. The opening 115 may expose the user input unit 15 disposed on the outer peripheral surface of the scanner 1 . Here, the user input unit 15 may be disposed on the outer peripheral surface of the case 10 as shown in FIG. 1 . Specifically, the user input unit 15 may be disposed on the outer peripheral surface of the body case 11 . More specifically, the user input unit 15 may be disposed on the outer surface of the upper case 13 .

When the scanner 1 is separated from the scanner holding unit 110 of the handle 100 , the user may operate the scanner 1 by manipulating the user input unit 15 provided in the scanner 1 .

The inner circumferential surface of the scanner holding unit 110 may be formed in a shape corresponding to the outer circumferential surface of the scanner 1 to be in close contact with the outer circumferential surface of the scanner 1 .

The grip part 120 may be disposed to protrude from the outer peripheral surface of the scanner holding part 110 . The grip part 120 may extend in the same radial direction as the scanner holding part 110 . The grip part 120 may extend in the vertical direction in the drawing. The grip part 120 may extend in a vertical direction in the drawing. The grip part 120 may be vertically disposed in the drawing. However, the grip part 120 may extend by being inclined at a predetermined angle with respect to the radial direction of the scanner holding part 110 .

The scanner holding unit 110 may include an outer holding unit 111 and an inner holding unit 113 .

The grip part 120 may protrude from the outer peripheral surface of the outer holding part 111 . The outer holding part 111 may be formed of the same hard material as the grip part 120 . For example, the outer holding part 111 may be formed of hard plastic.

The inner holding part 113 may be disposed on an inner circumferential surface of the outer holding part 111 . The inner holding part 113 may be formed to be softer than the outer holding part 111 to be in contact with the outer peripheral surface of the scanner 1 . For example, the inner holding part 113 may be made of silicon having excellent adhesion to the contact target.

The inner holding part 113 is formed of the silicon and is in close contact with the outer peripheral surface of the scanner 1 when the scanner 1 is mounted on the scanner holding part 110, thereby improving the adhesion of the scanner holding part 110. can The inner holding part 113 does not necessarily have to be formed of the silicon, and may be soft if it has an elastic force capable of being in close contact with the outer circumferential surface of the scanner 1 .

As described above, in the scanner holding unit 110 , since the inner holding unit 113 is made of a softer silicone material than the outer holding unit 111 , the adhesion of the scanner holding unit 110 is improved, and the scanner 1 . can be prevented from being rotated in the circumferential direction or moved in the longitudinal direction in the handle 100 .

As described above, the scanner holding unit 110 may be composed of two parts, the hard outer holding unit 111 and the soft inner holding unit 113 having elasticity. Of course, the scanner holding unit 110 may be composed of one part having an elastic force.

Meanwhile, first contact terminals 91 and 92 may be disposed on the outer peripheral surface of the scanner 1 . The first contact terminals 91 and 92 may be provided as a pair. The first contact terminals 91 and 92 may be terminals through which electricity is passed. Among the first contact terminals 91 and 92, any one (eg, 91) may conduct electricity of a positive pole, and the other (eg, 92) may conduct electricity of a negative pole.

In addition, second contact terminals 131 and 132 may be provided on the inner circumferential surface of the scanner holding unit 110 . The second contact terminals 131 and 132 may be provided as a pair. The second contact terminals 131 and 132 may be terminals through which electricity passes. Among the second contact terminals 131 and 132 , any one (eg, 131 ) may conduct electricity of a positive pole, and the other (eg, 132 ) may conduct electricity of a negative pole.

When the scanner 1 is mounted on the scanner holding unit 110 of the handle 100 , the second contact terminals 131 and 132 may be in contact with the first contact terminals 91 and 92 . For example, when the scanner 1 is mounted on the scanner holding unit 110 of the handle 100 , the first contact terminal 91 and the second contact terminal 131 may be in contact, and the first The contact terminal 92 and the second contact terminal 132 may be in contact.

In addition, a user input unit 125 may be provided in the grip unit 120 . The user input unit 125 may be electrically connected to the second contact terminals 131 and 132 to operate the scanner 1 .

When the scanner 1 is mounted on the scanner holding unit 110 of the handle 100 , the user may operate the scanner 1 by manipulating the user input unit 125 provided in the grip unit 120 .

When describing the operation of the handle 100 for a three-dimensional intraoral scanner according to the first embodiment of the present invention configured as described above.

11 is a side view of a state in which the scanner is coupled to a handle for a three-dimensional intraoral scanner according to a first embodiment of the present invention, (a) is a view showing the position of the handle when scanning the mandible in the oral cavity, (b) is the oral cavity It is a diagram showing the position of the handle during the scan of the upper jaw.

Referring to FIG. 11A , the scanner 1 is inserted and mounted in the scanner holding part 110 of the handle 100 so that the opening 16 of the scanner 1 faces downward.

Thereafter, the user may hold the grip portion 120 with his/her hand so that the grip portion 120 of the handle 100 faces downward, and then insert one end of the scanner 1 with the opening 16 into the patient's oral cavity. .

Thereafter, the user may operate the scanner 1 by manipulating the user input unit 125 provided in the grip unit 120 to scan the mandible in the patient's mouth.

Referring to FIG. 11B , when the scan of the mandible in the patient's oral cavity is completed, the user rotates the handle 100 in the circumferential direction by 180 degrees so that the grip part 120 of the handle 100 faces upward. can do it In this way, the opening 16 of the scanner 1 faces upward.

Thereafter, the user may operate the scanner 1 by manipulating the user input unit 125 provided in the grip unit 120 to scan the upper jaw in the patient's oral cavity.

On the other hand, even if the user input unit 125 is not provided in the grip unit 120 , an opening 115 exposing the user input unit 15 provided in the scanner 1 is formed in the scanner holding unit 110 of the handle 100 . Thus, the user may operate the scanner 1 by manipulating the user input unit 15 provided in the scanner 1 , but may operate the user input unit 125 provided in the grip unit 120 of the handle 100 . Thus, it may be more convenient to operate the scanner 1 .

Figure 12 is a perspective view showing a handle for a three-dimensional intraoral scanner according to a second embodiment of the present invention, Figure 13 is a longitudinal cross-sectional view of the handle for a three-dimensional intraoral scanner according to a second embodiment of the present invention, Figure 14 is of the present invention A cross-sectional view of a handle for a three-dimensional intraoral scanner according to a second embodiment, Figure 15 is a perspective view showing a state in which the scanner is coupled to the handle for a three-dimensional intraoral scanner according to a second embodiment of the present invention. Although the illustration of the second contact terminals 131 and 132 and the user input unit 125 described in the above-described first embodiment is omitted here, the second contact terminals 131 and 132 and the user input unit 125 are also substantially omitted in this second embodiment. The input unit 125 may be provided. In the second embodiment, the second contact terminals 131 and 132 may be provided with an inner wheel 213, which will be described later, on the inner circumferential surface. In addition, the same names are given to components having the same functions as those of the above-described first embodiment, and detailed descriptions thereof will be omitted.

12 to 15 , the handle 200 for a three-dimensional intraoral scanner according to the second embodiment of the present invention may include a scanner holding unit 210 and a grip unit 220 .

The scanner holding unit 220 may have a bearing structure. That is, the scanner holding unit 220 may include an annular outer wheel 211 , an annular inner wheel 213 , and a plurality of balls B1 and B2 .

A grip part 220 may be protruded from the outer circumferential surface of the outer wheel 211 .

The inner wheel 213 may be rotatably disposed in the outer wheel 211 in the circumferential direction. The inner wheel 213 may surround the outer peripheral surface of the scanner 1 in the circumferential direction.

The plurality of balls B1 and B2 may be disposed between the outer wheel 211 and the inner wheel 213 . The plurality of balls B1 and B2 may enable the inner wheel 213 to rotate in the circumferential direction.

The plurality of balls B1 and B2 may include a plurality of first balls B1 and a plurality of second balls B2. The second plurality of balls B2 may be disposed to be spaced apart from the first plurality of balls B1 in the longitudinal direction of the scanner 1 . The first plurality of balls B1 may be disposed to be spaced apart from each other in the circumferential direction of the scanner holding unit 210 . The second plurality of balls B2 may be disposed to be spaced apart from each other in the circumferential direction of the scanner holding unit 210 .

The grip part 220 may extend by being inclined at a predetermined angle θ with respect to the radial direction of the scanner holding part 210 . That is, the imaginary straight line L2 arranged in the extension direction of the grip unit 220 is inclined at a predetermined angle θ with respect to the imaginary straight line L1 arranged in the radial direction of the scanner holding unit 210. can The grip part 220 may extend obliquely toward the other end of the scanner 1 . The predetermined angle θ may be formed at an angle between 0 degrees and 45 degrees, and in more detail, it may be formed at an angle between 20 and 30 degrees. Of course, the grip unit 220 may extend in the same radial direction as the scanner holding unit 210 , as in the first embodiment. Alternatively, the grip part 120 of the first embodiment described above may also be formed at the predetermined angle θ with respect to the radial direction of the scanner holding part 110 , and the grip part 320 of the third embodiment to be described later also holds the scanner. It may be formed at the predetermined angle θ with respect to the radial direction of the portion 310 .

Meanwhile, on the inner circumferential surface of the inner wheel 213 , the same silicon as the inner holding part 113 of the first embodiment may be disposed.

The handle 200 for a three-dimensional intraoral scanner according to the second embodiment of the present invention configured as described above is, after scanning any one of the upper and lower jaws in the patient's oral cavity with the scanner 1, the grip part 220 is When holding the scanner 1 with one hand and rotating the scanner 1 in the circumferential direction 180 degrees with the other hand, as shown in FIG. 15 , the scanner 1 can be rotated 180 degrees together with the inner wheel 213, after which the patient It is possible to scan the other one of the upper and lower jaws in the oral cavity of the scanner (1).

Of course, the inner wheel 213 is not limited to being installed to be rotated at 180 degree intervals on the outer wheel 211 . That is, the inner wheel 213 may be used by selectively setting an angle. For example, the inner wheel 213 may be installed on the outer wheel 211 to rotate at intervals of 90 degrees. In this case, after scanning any one of the maxilla and the mandible with the scanner 1, hold the grip unit 220 with one hand and rotate the scanner 1 with the other hand 90 degrees in the circumferential direction to occlude the maxilla and the mandible. The surface can be scanned with the scanner (1).

The scanner holding unit 210 may be rotatably operated with respect to the grip unit 220 while the reflective mirror 60 and the lens provided in the scanner 1 maintain a predetermined arrangement angle. That is, as shown in FIG. 5 , the third straight line L3 passing through the center of the reflection mirror 60 and the center of the opening 16 and the fourth straight line L4 passing through the center of the lens are mutually predetermined. have an angle of placement. For example, in the drawing, the third straight line L3 is vertically disposed, and the fourth straight line L4 is horizontally disposed. When the user rotates the scanner 1 in the circumferential direction in the state shown in FIG. 15 , the third straight line L3 and the fourth straight line L4 are arranged at orthogonal angles while maintaining the entire scanner 1 in the circumferential direction. can be rotated to

Since the input/exit path unit 17 formed in the tip case 14 is designed and implemented by the reflection mirror 60, the light projector, and the position and angle of the lens, some elements forming the input/exit path unit 17 are changed. In this case, there may be a problem in that the reliability of the image data is lowered. However, since the entire scanner 1 rotates in the circumferential direction while the arbitrary arrangement angles of the third straight line L3 and the fourth straight line L4 are maintained as described above, the user can secure accurate data and convenience. can

16 is a perspective view showing a handle for a three-dimensional intraoral scanner according to a third embodiment of the present invention. Although the illustration of the second contact terminals 131 and 132 and the user input unit 125 described in the above-described first embodiment is omitted here, the second contact terminals 131 and 132 and the user input unit 125 are also substantially omitted in this third embodiment. The input unit 125 may be provided. In addition, the same names are given to components having the same functions as those of the above-described first embodiment, and detailed descriptions thereof will be omitted.

Referring to FIG. 16 , the handle 300 for a three-dimensional intraoral scanner according to the third embodiment of the present invention may include a scanner holding unit 310 and a grip unit 320 .

Although the opening 115 is formed on one side of the scanner holding unit 110 of the first embodiment described above, the opening is not formed on one side of the scanner holding unit 310 of the third embodiment. Accordingly, the scanner holding unit 110 of the first embodiment described above could be detachably coupled to the scanner 1 by partially surrounding the outer peripheral surface of the scanner 1 in the circumferential direction, but the scanner holding unit 310 of the third embodiment ) may be detachably coupled to the scanner 1 by enclosing the entire outer circumferential surface of the scanner 1 in the circumferential direction.

Meanwhile, the same silicon as the inner holding part 113 of the first embodiment may be disposed on the inner peripheral surface of the scanner holding part 310 .

Also, like the second embodiment, the grip part 320 may be inclined at a predetermined angle θ with respect to the radial direction of the scanner holding part 310 to extend. That is, the grip part 320 may extend obliquely toward the other end of the scanner 1 .

Since the operation of the handle 300 for a three-dimensional intraoral scanner according to the third embodiment of the present invention configured as described above is the same as the operation of the handle 100 for the three-dimensional intraoral scanner according to the first embodiment described above, detailed A description will be omitted.

As described above, the handle (100, 200, 300) for a three-dimensional intraoral scanner according to embodiments of the present invention is composed of a scanner holding part (110, 210, 310) and a grip part (120, 220, 320) and a grip part You can easily scan the inside of the patient's mouth by holding (120, 220, 320). In particular, the grip angle of the intraoral scanner 1 can be precisely adjusted when scanning a region that is somewhat difficult to scan due to spatial constraints in the patient's oral cavity, thereby resolving the user's discomfort and acquiring intraoral data more efficiently can do.

Additionally, the tip case 14 is a part that can be drawn in and out of the mouth of the measurer and needs frequent replacement. Therefore, it is preferable that the scanner holding units 110 , 210 , and 310 hold the center of gravity of the scanner 1 and are installed to be spaced apart from the tip case 14 for a comfortable replacement operation.

In addition, when scanning any one of the patient's maxilla and mandible with the scanner 1 and then scanning the other, the scanner 1 is placed in the scanner holding part so that the opening 16 of the scanner 1 is located in the opposite direction. Rotate the handles 100 and 300 by 180 degrees in the circumferential direction while mounted on 110 and 310, or rotate the scanner 1 in the circumferential direction with the scanner 1 mounted on the scanner holding unit 210. By rotating it 180 degrees, it is possible to easily scan the inside of the oral cavity.

In addition, when the handles 100 , 200 , and 300 are coupled to the scanner 1 , the first contact terminals 91 and 92 provided on the outer circumferential surface of the scanner 1 and the scanner holding units 110 , 210 , The second contact terminals 131 and 132 provided on the inner circumferential surface of the 310 are in contact with each other. In addition, a user input unit 125 electrically connected to the second contact terminals 131 and 132 is provided in the grip units 120 , 220 , and 320 . Accordingly, the user can easily operate the scanner 1 by manipulating the user input unit 125 provided in the grip units 120 , 220 , 320 while holding the grip units 120 , 220 , and 320 .

Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

1: 3D intraoral scanner
16: opening
91, 92: first contact terminal
100, 200, 300: Handle for 3D intraoral scanner
110, 210, 310: scanner holding part
111: outer holding part
113: inner holding part
115: opening
120, 220, 320: grip part
125: user input unit
131, 132: second contact terminal
211: outer wheel
213: inner wheel
B1, B2: Ball

Claims (10)

In a three-dimensional intraoral scanner that can be drawn in and out of the oral cavity, and an opening is formed on one side orthogonal to the longitudinal direction among one end of the longitudinal direction, and the image inside the oral cavity is introduced into the inside in the form of light through the opening In the handle for the three-dimensional intraoral scanner used,
a scanner holding unit separably coupled to the scanner by wrapping at least a portion of the outer circumferential surface of the scanner in a circumferential direction; and
and a grip part protruding from the outer peripheral surface of the scanner holding part;
The scanner holding unit,
A handle for a three-dimensional intraoral scanner in which the reflective mirror and the lens provided in the scanner are rotatably operated with respect to the grip portion while maintaining a predetermined placement angle. The method according to claim 1,
The scanner holding part has an opening for exposing the user input disposed on the outer peripheral surface of the scanner is formed for a three-dimensional intraoral scanner handle. The method according to claim 1,
The scanner holding unit,
an outer holding part protruding from the outer circumferential surface of the grip part;
A handle for a three-dimensional intraoral scanner including an inner holding part disposed on the inner peripheral surface of the outer holding part, formed to be softer than the outer holding part, and having an elastic force in close contact with the outer peripheral surface of the scanner. The method according to claim 1,
The scanner holding unit,
an annular outer wheel in which the grip portion is protruded from an outer circumferential surface;
An annular inner wheel which is rotatably disposed in the outer wheel in the circumferential direction and surrounds the outer circumferential surface of the scanner in the circumferential direction;
A handle for a three-dimensional intraoral scanner including a plurality of balls disposed between the outer wheel and the inner wheel, and allowing the inner wheel to rotate in a circumferential direction. 5. The method according to claim 4,
The plurality of balls,
a first plurality of balls,
A handle for a three-dimensional intraoral scanner comprising a second plurality of balls spaced apart from the first plurality of balls in the longitudinal direction of the scanner. The method according to claim 1,
The grip portion is a handle for a three-dimensional intraoral scanner that extends in the same direction as the radial direction of the scanner holding portion. The method according to claim 1,
The grip portion is a three-dimensional intraoral scanner handle extending inclined at a predetermined angle with respect to the radial direction of the scanner holding portion. delete The method according to claim 1,
The grip portion has a handle for a three-dimensional intraoral scanner provided with a user input for operating the scanner. 10. The method of claim 9,
A second contact terminal is provided on an inner circumferential surface of the scanner holding part to be in contact with a first contact terminal disposed on an outer circumferential surface of the scanner,
The user input unit is electrically connected to the second contact terminal and a handle for a three-dimensional intraoral scanner operated.

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