CN210727899U - Hand-held type oral cavity scanning device - Google Patents
Hand-held type oral cavity scanning device Download PDFInfo
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- CN210727899U CN210727899U CN201920690095.2U CN201920690095U CN210727899U CN 210727899 U CN210727899 U CN 210727899U CN 201920690095 U CN201920690095 U CN 201920690095U CN 210727899 U CN210727899 U CN 210727899U
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Abstract
The embodiment of the utility model discloses hand-held type oral cavity scanning device, include: the hand-held part and the endoscopic part are connected into an integral structure through threads, and the hand-held part is provided with a data output interface and is used for outputting the scanned images in the human body oral cavity to external computer equipment; the handheld part and the endoscopic part are connected into a whole body to form a cavity type structure; the top end of the endoscopic part is provided with a 45-degree inclined surface, the opening of the endoscopic part is vertical to the main body of the endoscopic part, and a total reflection mirror is arranged in the 45-degree inclined surface. The utility model discloses a hand-held type oral cavity scanning device, the tooth to the oral cavity that can directly facilitate carries out comprehensive three-dimensional scanning, rebuilds out tooth three-dimensional model according to three-dimensional data, the utility model discloses novel structure, the structure is compacter and small and exquisite, adopts the projection color grating, and the interference that reducible tooth plain noodles brought and improve scanner and to three-dimensional data's acquisition rate and precision.
Description
Technical Field
The utility model belongs to the technical field of oral medical equipment technique and specifically relates to a hand-held type oral cavity scanning device.
Background
In recent years, oral health has been receiving more and more attention, and Digital Smile Design (DSD) is a common virtual aesthetic restoration design tool for aesthetic stomatologists, and the stomatologists can design personalized teeth according to aesthetic basic standards and requirements of patients. However, DSD is mature in two-dimensional direction, and difficult to evaluate in Z-axis space, and accurate tooth three-dimensional form cannot be designed.
Three-dimensional imaging techniques have demonstrated their value in view of the limitations of two-dimensional measurements. At present, three-dimensional scanning equipment based on structured light is mainly adopted to reconstruct tooth three-dimensional data, and then the three-dimensional tooth data is corrected. However, domestic research on oral aesthetic restoration needs to be improved in terms of measurement speed, accuracy and the like, and direct measurement of intraoral teeth has no mature product and corresponding research, so that the purchase of a whole foreign digital oral medical system is expensive, and the burden on doctors and patients is heavy.
Accordingly, there is a need in the art for improvements.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem who solves is: the utility model provides a hand-held type oral cavity scanning device to solve the problem that prior art exists, the utility model discloses hand-held type oral cavity scanning device includes:
the handheld part and the endoscopic part are connected into an integral structure through threads, the handheld part is a part held by a human hand when the oral cavity of a human body is scanned, the endoscopic part extends into the oral cavity of the human body when the oral cavity of the human body is scanned and scans images in the oral cavity, and the handheld part is provided with a data output interface for outputting the scanned images in the oral cavity of the human body to an external computer device;
the handheld part and the endoscopic part are connected into a whole body to form a cavity type structure;
the top end of the endoscopic part is provided with a 45-degree inclined plane, the opening of the endoscopic part is vertical to the main body of the endoscopic part, and the 45-degree inclined plane is internally provided with a holophote which is used for outputting the grating generated in the cavity of the endoscopic part to the oral cavity of the human body through the opening of the endoscopic part and transmitting the grating reflected by the oral cavity of the human body back to the cavity of the endoscopic part.
In another embodiment based on the above-mentioned handheld oral cavity scanning device of the present invention, a projection device, a total internal reflection prism, a projection transmission set, a photography holophote, and a photography device are disposed in the cavity of the handheld portion;
the projection device is arranged at the lower position of the rear end inside the handheld part and used for projecting the color grating and projecting light rays right above the projection device;
the total internal reflection prism is positioned right above the projection device and projects the color grating from the projection device to the oblique front direction;
the projection transmission group is arranged on a projection light path of the color grating from the total internal reflection prism, guides the color grating to project on the total reflection mirror, reflects the color grating through the total reflection mirror and then projects the color grating onto teeth inside the oral cavity of the human body, and after the teeth inside the oral cavity of the human body receive the color grating, reflects part of the color grating back to the total reflection mirror and transmits the part of the color grating back to the cavity of the endoscopic part;
the photographic transmission group is arranged on a light path which is used for transmitting the color grating reflected by the teeth in the oral cavity of the human body back to the cavity of the endoscopic part;
the photographic total reflector is arranged behind the photographic transmission group, the photographic device is positioned under the photographic total reflector, the photographic transmission group guides the color grating reflected by the oral cavity of the human body to be projected to the photographic total reflector, and the color grating reflected by the oral cavity of the human body is reflected to the photographic device through the photographic total reflector, so that the photographing of the color grating reflected by the oral cavity of the human body is completed;
the photographic device is arranged at the lower position in the middle of the interior of the handheld part, and the photographic device and the projection device are on the same horizontal plane and form an included angle of 20-40 degrees.
In another embodiment of the above handheld oral cavity scanning device according to the present invention, the distance between the tir prism and the total internal reflection mirror is 15-30 mm.
In another embodiment based on the above-mentioned handheld oral cavity scanning device of the present invention, the distance between the projection device and the photographing device is the same as the distance between the tir prism and the photographing holophote.
In another embodiment of the above handheld oral cavity scanning device according to the present invention, the projection device includes a digital light processing module.
In another embodiment based on the above-mentioned hand-held type oral cavity scanning device of the present invention, the control circuit module is disposed inside the hand-held portion, the control circuit module is disposed at the rear end of the internal cavity of the hand-held portion, including: the system comprises a projection control circuit, a shooting control circuit, an image processing unit, a GPS positioning unit, an inertia measurement unit and a standard interface unit;
the projection control circuit is connected with the projection device and used for storing an output signal of the projection device and controlling the state of the projection device;
the photographic control circuit is connected with the photographic device and used for generating a working time sequence of the photographic device, acquiring a bitmap signal of the photographic device and storing the bitmap signal into an internal storage unit of the photographic control circuit;
the image processing unit is connected with the shooting control circuit and used for processing the bitmap signal stored in the internal storage unit of the shooting control circuit;
the GPS positioning unit is used for positioning the position information of the equipment;
the inertial measurement unit is used for measuring three-dimensional attitude information of the endoscopic part;
the standard interface unit is connected with the photography control circuit, the inertia measurement unit and the GPS positioning unit and is used for sending bitmap information of the photography control circuit, three-dimensional attitude information of the inertia measurement unit and positioning information of the GPS positioning unit to external equipment.
In another embodiment based on the above-mentioned hand-held type oral cavity scanning device of the present invention, the rear section of the hand-held portion is provided with an access cover, and after the access cover is opened, the cavity of the hand-held portion is opened.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model discloses a hand-held type oral cavity scanning device, the tooth to the oral cavity that can directly facilitate carries out comprehensive three-dimensional scanning, acquires tooth three-dimensional data in real time to rebuild out tooth three-dimensional model according to three-dimensional data, the utility model discloses novel structure uses less components and parts to realize three-dimensional reconstruction function, and the structure is compacter small and exquisite more, compares in the projection of natural pointolite, adopts the projection color grating, and the interference that reducible tooth plain noodles brought and improvement scanner are to three-dimensional data's acquisition speed and precision.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
The invention will be more clearly understood from the following detailed description, with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of an embodiment of the handheld oral cavity scanning device of the present invention.
Fig. 2 is a schematic structural diagram of another embodiment of the handheld oral cavity scanning device of the present invention.
In the figure: 1 handheld part, 11 projection device, 12 total internal reflection prism, 13 projection transmission group, 14 photography transmission group, 15 photography total reflection mirror, 16 photography device, 17 control circuit module, 2 endoscopic part, 3 total reflection mirror, 4 access cover.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
As shown in fig. 1 and 2, the handheld oral cavity scanning device of this embodiment includes:
the handheld part 1 and the endoscopic part 2 are connected into an integral structure through threads, the handheld part 1 is a part held by a human hand when the oral cavity of a human body is scanned, the endoscopic part 2 extends into the oral cavity of the human body and scans images in the oral cavity when the oral cavity of the human body is scanned, and the handheld part 1 is provided with a data output interface used for outputting the scanned images in the oral cavity of the human body to an external computer device;
the hand-held part 1 and the endoscopic part 2 are connected into a whole body to form a cavity type structure;
the top end of the endoscopic part 2 is provided with a 45-degree inclined surface, the opening of the endoscopic part 2 is vertical to the main body of the endoscopic part 2, and the 45-degree inclined surface is internally provided with a holophote 3 which is used for outputting the grating generated in the cavity of the endoscopic part 2 to the oral cavity of the human body through the opening of the endoscopic part 2 and transmitting the grating reflected by the oral cavity of the human body back to the cavity of the endoscopic part 2.
A projection device 11, a total internal reflection prism 12, a projection transmission group 13, a photography transmission group 14, a photography total reflection mirror 15 and a photography device 16 are arranged in the cavity of the handheld part 1;
the projection device 11 is arranged at the lower position of the inner rear end of the handheld part 1, and the projection device 11 is used for projecting a color grating and projecting light rays right above;
the total internal reflection prism 12 is positioned right above the projection device 11 and projects the color grating from the projection device 11 to the oblique front direction;
the projection transmission group is arranged on a projection light path of the color grating from the total internal reflection prism 12, guides the color grating to project on the total reflecting mirror 3, reflects the color grating through the total reflecting mirror 3 and then projects the color grating onto teeth inside the oral cavity of the human body, and after receiving the color grating, the teeth inside the oral cavity of the human body reflect part of the color grating back to the total reflecting mirror 3 and transmit the part of the color grating back to the cavity of the endoscopic part 2;
the photographic transmission group 14 is arranged on a light path which is used for transmitting the color grating reflected by the teeth in the oral cavity of the human body back to the cavity of the endoscopic part 2;
the photographing total reflector 15 is arranged behind the photographing transmission group 14, the photographing device 16 is positioned under the photographing total reflector 15, the photographing transmission group 14 guides the color grating reflected by the oral cavity of the human body to be projected to the photographing total reflector, and then the color grating is reflected to the photographing device 16 through the photographing total reflector, so that photographing of the color grating reflected by the oral cavity of the human body is completed;
the photographic device 16 is arranged at the lower middle position in the handheld part 1, the photographic device 16 and the projection device 11 are on the same horizontal plane, and an included angle of 20-40 degrees is formed between the photographic device 16 and the projection device.
The distance between the total internal reflection prism 12 and the photographic total reflection mirror 15 is 15-30 mm.
The distance between the projection device 11 and the photographing device 16 is consistent with the distance between the total internal reflection prism 12 and the photographing total reflection mirror 15.
The projection device 11 includes a digital light processing module.
The inside control circuit module 17 that sets up of handheld portion 1, control circuit module 17 sets up the internal cavity rear end of handheld portion 1 includes: the system comprises a projection control circuit, a shooting control circuit, an image processing unit, a GPS positioning unit, an inertia measurement unit and a standard interface unit;
the projection control circuit is connected with the projection device 11 and is used for storing an output signal of the projection device 11 and controlling the state of the projection device 11;
the photographic control circuit is connected with the photographic device 16 and used for generating the working time sequence of the photographic device 16, collecting the bitmap signal of the photographic device 16 and storing the bitmap signal into an internal storage unit of the photographic control circuit, and the photographic control circuit uses an FGPA chip as a control chip;
the image processing unit is connected with the shooting control circuit and used for processing the bitmap signal stored in the internal storage unit of the shooting control circuit;
the GPS positioning unit is used for positioning the position information of the equipment;
the inertial measurement unit is used for measuring three-dimensional attitude information of the endoscopic part 2;
the standard interface unit is connected with the photography control circuit, the inertia measurement unit and the GPS positioning unit and is used for sending bitmap information of the photography control circuit, three-dimensional attitude information of the inertia measurement unit and positioning information of the GPS positioning unit to external equipment.
The cross section sets up access cover 4 behind handheld portion 1, opens access cover 4 back, handheld portion 1's cavity is open.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts in the embodiments are referred to each other. For the system embodiment, since it basically corresponds to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. A hand-held oral scanning device, comprising:
the handheld part and the endoscopic part are connected into an integral structure through threads, the handheld part is a part held by a human hand when the oral cavity of a human body is scanned, the endoscopic part extends into the oral cavity of the human body when the oral cavity of the human body is scanned and scans images in the oral cavity, and the handheld part is provided with a data output interface for outputting the scanned images in the oral cavity of the human body to an external computer device;
the handheld part and the endoscopic part are connected into a whole body to form a cavity type structure;
the top end of the endoscopic part is provided with a 45-degree inclined plane, the opening of the endoscopic part is vertical to the main body of the endoscopic part, and the 45-degree inclined plane is internally provided with a holophote which is used for outputting the grating generated in the cavity of the endoscopic part to the oral cavity of the human body through the opening of the endoscopic part and transmitting the grating reflected by the oral cavity of the human body back to the cavity of the endoscopic part.
2. The hand-held oral scanning device of claim 1, wherein a projection device, a tir prism, a projection transmission set, a photography holophote, a photography device are disposed within the cavity of the hand-held portion;
the projection device is arranged at the lower position of the rear end inside the handheld part and used for projecting the color grating and projecting light rays right above the projection device;
the total internal reflection prism is positioned right above the projection device and projects the color grating from the projection device to the oblique front direction;
the projection transmission group is arranged on a projection light path of the color grating from the total internal reflection prism, guides the color grating to project on the total reflection mirror, reflects the color grating through the total reflection mirror and then projects the color grating onto teeth inside the oral cavity of the human body, and after the teeth inside the oral cavity of the human body receive the color grating, reflects part of the color grating back to the total reflection mirror and transmits the part of the color grating back to the cavity of the endoscopic part;
the photographic transmission group is arranged on a light path which is used for transmitting the color grating reflected by the teeth in the oral cavity of the human body back to the cavity of the endoscopic part;
the photographic total reflector is arranged behind the photographic transmission group, the photographic device is positioned under the photographic total reflector, the photographic transmission group guides the color grating reflected by the oral cavity of the human body to be projected to the photographic total reflector, and the color grating reflected by the oral cavity of the human body is reflected to the photographic device through the photographic total reflector, so that the photographing of the color grating reflected by the oral cavity of the human body is completed;
the photographic device is arranged at the lower position in the middle of the interior of the handheld part, and the photographic device and the projection device are on the same horizontal plane and form an included angle of 20-40 degrees.
3. The handheld oral scanning device of claim 2, wherein the distance between the tir prism and the total internal reflection mirror is 15-30 mm.
4. The handheld oral scanning device of claim 3, wherein the distance between said projection device and said camera device is the same as the distance between said TIR prism and said camera holophote.
5. The handheld oral scanning device of claim 2, wherein the projection device comprises a digital light processing module.
6. The handheld oral scanning device of claim 2, wherein a control circuit module is disposed inside the handheld portion, the control circuit module being disposed at a rear end of an internal cavity of the handheld portion, comprising: the system comprises a projection control circuit, a shooting control circuit, an image processing unit, a GPS positioning unit, an inertia measurement unit and a standard interface unit;
the projection control circuit is connected with the projection device and used for storing an output signal of the projection device and controlling the state of the projection device;
the photographic control circuit is connected with the photographic device and used for generating a working time sequence of the photographic device, acquiring a bitmap signal of the photographic device and storing the bitmap signal into an internal storage unit of the photographic control circuit;
the image processing unit is connected with the shooting control circuit and used for processing the bitmap signal stored in the internal storage unit of the shooting control circuit;
the GPS positioning unit is used for positioning the position information of the equipment;
the inertial measurement unit is used for measuring three-dimensional attitude information of the endoscopic part;
the standard interface unit is connected with the photography control circuit, the inertia measurement unit and the GPS positioning unit and is used for sending bitmap information of the photography control circuit, three-dimensional attitude information of the inertia measurement unit and positioning information of the GPS positioning unit to external equipment.
7. The handheld oral scanning device of claim 1, wherein an access cover is disposed on a rear cross section of the handheld portion, and a cavity of the handheld portion is open when the access cover is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920690095.2U CN210727899U (en) | 2019-05-13 | 2019-05-13 | Hand-held type oral cavity scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920690095.2U CN210727899U (en) | 2019-05-13 | 2019-05-13 | Hand-held type oral cavity scanning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210727899U true CN210727899U (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920690095.2U Expired - Fee Related CN210727899U (en) | 2019-05-13 | 2019-05-13 | Hand-held type oral cavity scanning device |
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| Country | Link |
|---|---|
| CN (1) | CN210727899U (en) |
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2019
- 2019-05-13 CN CN201920690095.2U patent/CN210727899U/en not_active Expired - Fee Related
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Granted publication date: 20200612 Termination date: 20210513 |