WO2017096594A1 - Support à double usage pour scanner intraoral - Google Patents

Support à double usage pour scanner intraoral Download PDF

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Publication number
WO2017096594A1
WO2017096594A1 PCT/CN2015/097040 CN2015097040W WO2017096594A1 WO 2017096594 A1 WO2017096594 A1 WO 2017096594A1 CN 2015097040 W CN2015097040 W CN 2015097040W WO 2017096594 A1 WO2017096594 A1 WO 2017096594A1
Authority
WO
WIPO (PCT)
Prior art keywords
intra
elongated part
holder
oral scanner
elongated
Prior art date
Application number
PCT/CN2015/097040
Other languages
English (en)
Inventor
Kaikai CHU
Jinbu ZHANG
Original Assignee
Rayco (Shanghai) Medical Products Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rayco (Shanghai) Medical Products Co., Ltd. filed Critical Rayco (Shanghai) Medical Products Co., Ltd.
Priority to PCT/CN2015/097040 priority Critical patent/WO2017096594A1/fr
Priority to CN201580083815.3A priority patent/CN108700096A/zh
Publication of WO2017096594A1 publication Critical patent/WO2017096594A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/20—Clips, i.e. with gripping action effected solely by the inherent resistance to deformation of the material of the fastening
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A61C9/004—Means or methods for taking digitized impressions
    • A61C9/0046—Data acquisition means or methods
    • A61C9/0053—Optical means or methods, e.g. scanning the teeth by a laser or light beam
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A61C9/004—Means or methods for taking digitized impressions
    • A61C9/0046—Data acquisition means or methods
    • A61C9/0053—Optical means or methods, e.g. scanning the teeth by a laser or light beam
    • A61C9/006—Optical means or methods, e.g. scanning the teeth by a laser or light beam projecting one or more stripes or patterns on the teeth

Definitions

  • the disclosure relates generally to optical scanners for surface contour characterization and more particularly to a dual-use holder and methods of using the same.
  • a number of techniques have been developed for obtaining surface contour information from various types of objects in medical, industrial, and other applications. These techniques include optical 3-dimensional (3-D) measurement methods that provide shape and depth information using images obtained from patterns of light directed onto a surface.
  • Structured light imaging is one familiar technique that has been successfully applied for surface characterization. Light reflected or scattered from the surface is then viewed from another angle as a contour image, taking advantage of triangulation in order to analyze surface information based on the appearance of contour lines or other patterned illumination.
  • Intra-oral structured light imaging is now becoming a valuable tool for the dental practitioner, who can obtain this information by scanning the patient's teeth using an inexpensive, compact intra-oral scanner, such as the Model CS3500 Intraoral Scanner from Carestream Dental, Atlanta, GA.
  • Embodiments of the present disclosure address the need for improved holders and methods that allow advantages such as facilitate dual use on-site mounting according to end-user preference, for example.
  • Another aspect of this application is to address, in whole or in part, at least the foregoing and other deficiencies in the related art.
  • An advantage offered by apparatus and/or method embodiments of the application relates to providing a single holder that can mount to a horizontal surface and a vertical surface for supporting an intra-oral scanner.
  • a holder for mounting an intra-oral scanner can include a first elongated part having a first end and a second end; a second elongated part having a first end and a second end; and a connection part coupled to the first end of the first elongated part and to the first end of the second elongated parts to space apart the first elongated part from the second elongated part; where the first elongated part includes a first surface that is directed toward the second elongated part and a second opposite surface that is directed away from the second elongated part, where the second elongated part includes a first surface that is directed toward the first elongated part and a second opposite surface that is directed away from the first elongated part, where the second surface of the second elongated part is adapted to contact a first support structure and a recess in the second surface of the first elongated part is adapted to support an intra-oral scanner in a first orientation of
  • Figure 1 is a schematic diagram that shows components of an imaging apparatus for surface contour imaging of a patient's teeth and related structures.
  • Figure 2 shows schematically how patterned light is used for obtaining surface contour information using a handheld camera or other portable imaging device.
  • Figure 3 shows an example of surface imaging using a pattern with multiple lines of light.
  • Figures 4A-4C are diagrams that show an exemplary dual use holder embodiment for an intra-oral scanner according to the application.
  • Figure 5 is a diagram that shows an exemplary holder embodiment of positioned in a first orientation.
  • Figure 6 is a diagram that shows an exemplary holder embodiment of positioned in a second orientation.
  • Figure 7 is a diagram that shows another exemplary dual use holder embodiment for an intra-oral scanner according to the application.
  • Figure 8 is a diagram that shows another exemplary multi-use holder embodiment for an intra-oral scanner according to the application.
  • first does not necessarily denote any ordinal or priority relation, but may be used for more clearly distinguishing one element or time interval from another.
  • in signal communication means that two or more devices and/or components are capable of communicating with each other via signals that travel over some type of signal path.
  • Signal communication may be wired, wireless, direct or indirect.
  • the signals may be communication, power, data, or energy signals which may communicate information, power, and/or energy.
  • pixel and “voxel” may be used interchangeably to describe an individual digital image data element, that is, a single value representing a measured image signal intensity.
  • an individual digital image data element is referred to as a voxel for 3-dimensional or volume images and a pixel for 2-dimensional (2-D) images.
  • voxel and pixel can generally be considered equivalent, describing an image elemental datum that is capable of having a range of numerical values.
  • Voxels and pixels have attributes of both spatial location and image data code value.
  • the terms “viewer” , “operator” , “end-user”, and “user” are considered to be equivalent and refer to the viewing practitioner, technician, or other person who views and manipulates a contour image that is formed from a combination of multiple structured light images on a display monitor or who performs a calibration procedure on equipment that obtains a contour image.
  • 3-D model may be used synonymously in the context of the present disclosure.
  • the dense point cloud is formed using techniques familiar to those skilled in the volume imaging arts for forming a point cloud and relates generally to methods that identify, from the point cloud, vertex points corresponding to surface features.
  • the dense point cloud is thus generated using the reconstructed contour data from one or more reflectance images.
  • Dense point cloud information serves as the basis for a polygon model at high density for the teeth and gum surface.
  • FIG. 1 is a schematic diagram showing an imaging apparatus 70 that operates as a camera 24 for image capture as well as a scanner 28 for projecting and imaging to characterize surface contour using structured light patterns 46.
  • a handheld imaging apparatus 70 uses a camera 24 for image acquisition for both contour scanning and image capture functions according to an embodiment of the present disclosure.
  • a control logic processor 80 or other type of computer that may be part of camera 24, controls the operation of an illumination array 10 that generates the structured light and directs the light toward a surface position and controls operation of an imaging sensor array 30.
  • Image data from surface 20, such as from a tooth 22, is obtained from imaging sensor array 30 and stored in a memory 72.
  • Imaging sensor array 30 is part of a sensing apparatus 40 that includes an objective lens 34 and associated elements for acquiring image content.
  • Control logic processor 80 in signal communication with camera 24 components that acquire the image, processes the received image data and stores the mapping in memory 72. The resulting image from memory 72 is then optionally rendered and displayed on a display 74.
  • Memory 72 may also include a display buffer.
  • a pattern of lines is projected from illumination array 10 toward the surface of an object from a given angle.
  • the projected pattern from the illuminated surface position is then viewed from another angle as a contour image, taking advantage of triangulation in order to analyze surface information based on the appearance of contour lines.
  • Phase shifting in which the projected pattern is incrementally shifted spatially for obtaining additional measurements at the new locations, is typically applied as part of structured light imaging, used in order to complete the contour mapping of the surface and to increase overall resolution in the contour image.
  • the schematic diagram of Figure 2 shows, with the example of a single line of light L, how patterned light is used for obtaining surface contour information by a scanner using a handheld camera or other portable imaging device.
  • a mapping is obtained as an illumination array 10 directs a pattern of light onto a surface 20 and a corresponding image of a line L’ is formed on an imaging sensor array 30.
  • Each pixel 32 on imaging sensor array 30 maps to a corresponding pixel 12 on illumination array 10 according to modulation by surface 20. Shifts in pixel position, as represented in Figure 2, yield useful information about the contour of surface 20.
  • the basic pattern shown in Figure 2 can be implemented in a number of ways, using a variety of illumination sources and sequences and using one or more different types of sensor arrays 30.
  • Illumination array 10 can utilize any of a number of types of arrays used for light modulation, such as a liquid crystal array or digital micromirror array, such as that provided using the Digital Light Processor or DLP device from Texas Instruments, Dallas, TX. This type of spatial light modulator is used in the illumination path to change the light pattern as needed for the mapping sequence.
  • a liquid crystal array or digital micromirror array such as that provided using the Digital Light Processor or DLP device from Texas Instruments, Dallas, TX. This type of spatial light modulator is used in the illumination path to change the light pattern as needed for the mapping sequence.
  • the image of the contour line on the camera simultaneously locates a number of surface points of the imaged object. This speeds the process of gathering many sample points, while the plane of light (and usually also the receiving camera) is laterally moved in order to “paint” some or all of the exterior surface of the object with the plane of light.
  • Multiple structured light patterns can be projected and analyzed together for a number of reasons, including to increase the density of lines for additional reconstructed points and to detect and/or correct incompatible line sequences.
  • Use of multiple structured light patterns is described in commonly assigned U. S. Patent Application Publications No. US20130120532 and No. US2013/0120533, both entitled “3D INTRAORAL MEASUREMENTS USING OPTICAL MULTILINE METHOD” and incorporated herein in their entirety.
  • Figure 3 shows surface imaging using a pattern with multiple lines of light. Incremental shifting of the line pattern and other techniques help to compensate for inaccuracies and confusion that can result from abrupt transitions along the surface, whereby it can be difficult to positively identify the segments that correspond to each projected line. In Figure 3, for example, it can be difficult over portions of the surface to determine whether line segment 16 is from the same line of illumination as line segment 18 or adjacent line segment 19.
  • a computer and software can use triangulation methods to compute the coordinates of numerous illuminated surface points. As the plane is moved to intersect eventually with some or all of the surface of the object, the coordinates of an increasing number of points are accumulated. As a result of this image acquisition, a point cloud of vertex points or vertices can be identified and used to represent the extent of a surface within a volume. The points in the point cloud then represent actual, measured points on the three dimensional surface of an object.
  • a related art holder used for holding the intra-oral scanner between patients.
  • the related art holder can be placed on a desk top while dentists complete additional office work related to the dental patient scanning.
  • the dentist usually has a trolley, which is pushed by the dentist from patient to patient to scan the patient's teeth.
  • a related art holder can be placed on the side of the trolley while dentists complete additional office work related to the dental patient scanning.
  • Exemplary method and/or apparatus embodiments of the present disclosure advantageously provide an intra-oral scanner holder using an approach that is inherently more robust to user requirements over earlier processes and/or apparatus.
  • Exemplary method and/or apparatus embodiments can provide a dual use holder that can support an intra-oral scanner or have the intra-oral scanner mounted therein in both a first or horizontal orientation and a second or vertical orientation using a single device.
  • Exemplary method and/or apparatus embodiments can provide a single intra-oral scanner holder for dual-orientation support for a plurality of different intra-oral scanners.
  • Figures 4A-4C are diagrams that show an exemplary dual use holder embodiment for an intra-oral scanner according to the application.
  • a holder 100 can provide first and second different kinds of using postures.
  • a first orientation or posture is shown in Figures 4A, namely, a horizontal posture. The first orientation can be used when the intra-oral scanner is to be placed on the desktop, where the intra-oral scanner is mounted horizontally, for easy use.
  • a second orientation or posture is shown in Figures 4B, namely, a vertical posture. The second orientation can be used when the intra-oral scanner is to be placed hanging on the side of the trolley, where the intra-oral scanner is mounted vertically, for easy use. The second orientation can also be used when the intra-oral scanner is to be placed hanging on the wall.
  • the holder 100 includes a first elongated part 102, a second elongated part 106, which are connected together at one end by a connection part 104 so that the first and second elongated parts are spaced apart from each other.
  • the connection part 104 can be rounded so that the holder 100 is substantially “U” shaped.
  • the connection part can form specific angles, such as 60 or 90 degrees relative to the first and second elongated parts.
  • Figure 5 is a diagram that shows an exemplary holder embodiment of positioned in a first orientation.
  • a face A of the holder 100 contacts the table top directly and an intra-oral scanner 500 can be placed or mounted to surface or face B of the holder 100.
  • Face B can be a recess that is preferable configured to match the shape of the intra-oral scanner 500.
  • the intra-oral scanner 500 is positioned very close to the desk top or horizontal support surface.
  • Figure 6 is a diagram that shows an exemplary holder embodiment of positioned in a second orientation.
  • a face C of the holder 100 contacts the trolley side directly and the intra-oral scanner 500 can be vertically placed or mounted to surface or face D of the holder 100.
  • Face D can be a recess that is preferable configured to match the shape of the intra-oral scanner 500.
  • a face E of elongated part 106 can also be used to hold the intra-oral scanner 500 when vertically placed in the holder 100.
  • Face E can be a recess that is preferable configured to match the shape of the intra-oral scanner 500.
  • the intra-oral scanner may not touch the connection part 104 when vertically placed in the holder 100.
  • connection part 104 can also be used (e.g. , with the face E and the face D) to hold the intra-oral scanner 500 when vertically placed in the holder 100 in the second orientation.
  • an upper face of the connection part 104 can be a recess that is preferable configured to match the shape of the intra-oral scanner 500.
  • the elongated part 106 can include a gap 106a that a cable 502 of the intra-oral scanner 500 can pass through.
  • the gap can be about 1 cm to allow standard cable types there through.
  • the gap 106a can extend to a gap 104a in the connection part 104 that the cable 502 of the intra-oral scanner 500 can pass through the gap 104a.
  • the gaps 106a and 104a can be the same or differently sized so long as the function of not impeding the cable 502 when the intra-oral scanner 500 is placed in the holder 100.
  • the exemplary holder 100 embodiment can meet the need of end-users, dentists or technicians in both desktop use, and also meet the needs of users or technicians in wall-mounted use.
  • holder embodiments according to the application need only to adjust the corresponding face (e.g. , faces B and D) to match the outline of a specific scanner, then can meet the needs of dual-use scanner of different configurations, models, sizes and/or types.
  • a specific shape for both faces B and D can de designed or formed to meet the shape of two or more different intra-oral scanners.
  • FIG 7 is a diagram that shows another exemplary dual use holder embodiment for an intra-oral scanner according to the application.
  • a holder 700 can provide first and second different kinds of using postures.
  • the holder 700 includes a first elongated part 702, a second elongated part 706, which are connected together at one end by a connection part 704 so that the first and second elongated parts 702, 706 are spaced apart from each other.
  • the second elongated part 706 is preferably 1/3 shorter than the first elongated part 702 to allow easier access when placing an intra-oral scanner into or removing an intra-oral scanner from the holder 700.
  • Such a configuration preferably provides easy access but secure positioning in the second or vertical orientation of the holder 700.
  • the second elongated part 706 can be 1/2 the length of the first elongated part 702.
  • FIG 8 is a diagram that shows yet another exemplary multi-use holder embodiment for an intra-oral scanner according to the application.
  • a holder 800 can provide first and second different kinds of using postures, but is mounted to a vertical support structure using fasteners 820.
  • the fasteners 820 are a screw.
  • exemplary holder embodiments are not intended to be so limited as various alternatives of fastener 820 can be used such as but not limited to temporary or permanent mechanical fasteners like anchors, bolts, hardware, nails, nuts, pins, clips, rivets, rods, sockets, clamps, hangers, and also non-mechanical fasteners like magnets, adhesives or welds.
  • fasteners can be used to secure the holder 800 at one location when placed in the first orientation on a flat support.
  • materials chosen for the construction of holder 100 can be selected for stability over time under a suitable range of temperature, humidity, barometric pressure, and other conditions.
  • Suitable materials for the holder 100 can include various types of metals, glass, ceramics, and plastics, for example, that are machined or molded to within the selected tolerances for use.
  • Exemplary embodiments according to the application can include various features described herein (individually or in combination) .

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Endoscopes (AREA)

Abstract

La présente invention concerne un support à double usage (100) pour scanner intraoral. Le support comprend une première partie allongée (102), une seconde partie allongée (106) et une partie de raccordement (104) accouplée à la première partie allongée et à la seconde partie allongée. Le support peut supporter un scanner intraoral dans une orientation horizontale et une orientation verticale.
PCT/CN2015/097040 2015-12-10 2015-12-10 Support à double usage pour scanner intraoral WO2017096594A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2015/097040 WO2017096594A1 (fr) 2015-12-10 2015-12-10 Support à double usage pour scanner intraoral
CN201580083815.3A CN108700096A (zh) 2015-12-10 2015-12-10 用于口腔内扫描仪的双重用途保持件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/097040 WO2017096594A1 (fr) 2015-12-10 2015-12-10 Support à double usage pour scanner intraoral

Publications (1)

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WO2017096594A1 true WO2017096594A1 (fr) 2017-06-15

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PCT/CN2015/097040 WO2017096594A1 (fr) 2015-12-10 2015-12-10 Support à double usage pour scanner intraoral

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WO (1) WO2017096594A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023237598A1 (fr) * 2022-06-09 2023-12-14 3Shape A/S Unité de support pour dispositif de balayage intra-buccal

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CN2050898U (zh) * 1989-04-11 1990-01-10 尹�鲁 一种自动固定夹
GB2471332A (en) * 2009-06-26 2010-12-29 Innoverce Engineering Ltd Clip
CN201786833U (zh) * 2010-09-28 2011-04-06 延锋伟世通汽车饰件系统有限公司 汽车装配用固定卡扣
WO2012095591A1 (fr) * 2011-01-10 2012-07-19 Henry Sanderson Porte-objets
US20130062489A1 (en) * 2011-09-08 2013-03-14 Visor Frames, LLC Rotating Attachment Device and Method of Use
CN204016539U (zh) * 2014-08-12 2014-12-17 吴开华 新型牙齿扫描仪

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WO2023237598A1 (fr) * 2022-06-09 2023-12-14 3Shape A/S Unité de support pour dispositif de balayage intra-buccal

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