WO2023110743A1 - Espaceur pour acquisition dentaire - Google Patents
Espaceur pour acquisition dentaire Download PDFInfo
- Publication number
- WO2023110743A1 WO2023110743A1 PCT/EP2022/085370 EP2022085370W WO2023110743A1 WO 2023110743 A1 WO2023110743 A1 WO 2023110743A1 EP 2022085370 W EP2022085370 W EP 2022085370W WO 2023110743 A1 WO2023110743 A1 WO 2023110743A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- user
- spacer
- tongue
- acquisition
- opening
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00105—Constructional details of the endoscope body characterised by modular construction
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/24—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00112—Connection or coupling means
- A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
- A61B1/00128—Connectors, fasteners and adapters, e.g. on the endoscope handle mechanical, e.g. for tubes or pipes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00147—Holding or positioning arrangements
- A61B1/00148—Holding or positioning arrangements using anchoring means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/32—Devices for opening or enlarging the visual field, e.g. of a tube of the body
Definitions
- the present invention relates to a kit for acquiring representations of teeth, and in particular dental photos, in particular for the implementation of a method as described in international application PCT/EP2015/074896.
- the invention also relates to a spacer for such an acquisition, in particular adapted to such a kit.
- PCT/EP2015/074897 describes an acquisition kit allowing a user to acquire, by means of a mobile phone, extraoral photos of his teeth, mouth closed or mouth open, in different orientations.
- the 2D or 3D representations, relating to the teeth, can in particular be extraoral images or three-dimensional digital models.
- the kit must finally allow the acquisition of data for each tooth of the user, and in particular of teeth at the back of his mouth.
- the dimensions of the mouth of the user can however vary considerably according to his morphology, in particular according to his age. If the user does not use an acquisition kit adapted to the dimensions of his mouth, the acquisition is not comfortable and the photos may be of poor quality. There is therefore a need for an acquisition kit which allows, with the mobile telephone, the acquisition of 2D representations, such as photos, or 3D representations, such as three-dimensional models, by the user himself, in views occlusal or lateral, mouth open or mouth closed, and which limits the risk of acquisition with an unsuitable kit.
- 2D representations such as photos
- 3D representations such as three-dimensional models
- An object of the present invention is to respond, at least partially, to this need.
- the invention proposes a spacer, preferably in one piece, intended for the acquisition, with a mobile phone, of 2D or 3D representations of a user's teeth, the spacer comprising a tubular part having a longitudinal axis X,
- the tubular part comprising, preferably consisting of a non-deformable section opening out via the acquisition opening and, in the extension of the non-deformable section, a deformable section, preferably elastically, opening via the oral and deformable opening between a resting configuration in which the oral opening has a maximum area and a contracted configuration in which the oral opening has a minimum area, the ratio of the minimum area, i.e. in the contracted configuration, at maximum area, i.e.
- a reduction in said ratio advantageously allows a broadening of the spectrum of user morphologies to which the spacer can adapt, as well as facilitating the placing in service position.
- the spacer thus not only performs the function of spacing the mobile telephone away from the opening oral, thanks to the length and the rigidity of the undeformable section, but can also be adapted to the morphology of the user, by deformation of the acquisition opening. Its one-piece character considerably reduces its manufacturing cost, but also simplifies acquisition by the user.
- the spacer comprises, preferably in the extension of the deformable section, at least two supports intended to elastically roll up part of the lips of a user in a service position in which the oral opening faces teeth of the user, so as to release the teeth visible through the acquisition opening and the oral opening.
- the spacer comprises two so-called lateral supports to separate the right and left labial commissures from each other, and preferably two so-called central supports, to separate the upper and lower lips from each other.
- the oral opening can thus be modified elastically, depending on the action exerted on the support(s), which allows the spacer to adapt elastically to the dimensions of the mouth of the user.
- the spacer can thus be suitable for users having mouths of different dimensions, for example suitable for an adult and for a child. It is therefore no longer necessary, for each user, to choose a spacer that corresponds to him. The risk of error during acquisition is advantageously reduced.
- the mobility of the supports facilitates the introduction of the spacer into the mouth of the user, by contracting the oral opening during said introduction, preferably by compressing the deformable section with one hand, preferably by pinching between two fingers.
- the spacer then exercises not only the function of a conventional spacer, but also the function of a "dental retractor” ("retractor" in English) thanks to the elastic mobility of the supports relative to the non-deformable section.
- a spacer according to the invention may comprise one or more of the following optional characteristics: the deformable section comprises a plurality of tongues, each tongue
- the spacer comprises a stop member arranged so as to block the movement of the tabs towards the longitudinal axis when said tabs reach the contracted configuration;
- each tab is separated by a distance greater than 1 mm, preferably greater than 2 mm, preferably greater than 3 mm, preferably greater than 5 mm, preferably greater than 8 mm, preferably greater than 10 mm from each of the adjacent tongues, which advantageously limits the risks of pinching of the lips;
- each tab is separated by a distance of less than 30 mm, preferably less than 20 mm, from each of the adjacent tabs, which advantageously limits the risks of an unsatisfactory separation of the lips or cheeks between the tongues;
- the spacer comprises a member for coupling the movement of at least one tongue with the movement of at least one adjacent tongue, from the rest configuration to the compacted configuration, and in particular, in the preferred embodiment , so that the movement of the lateral tongues causes the movement of the central tongues, which advantageously allows coordination of the movements of the different tongues;
- the spacer comprises a masking flap configured to completely mask the space extending between two adjacent tabs, in particular between any central tab and at least one, preferably each of the side tabs adjacent to the central tab, said flap preferably constituting said coupling member, the masking preferably being permanent from the rest configuration to the contracted configuration;
- At least one tab, preferably each tab comprises a support shaped to, in a service position, away from the teeth of the user part of the lips of the user;
- At least one said support is shaped so as to allow, in the service position, a sliding of the user's lips away from the user's teeth, preferably over a distance (Lsoa in Figure 6) greater than 3 mm, preferably greater than 5 mm, preferably greater than 10 mm, and/or less than 100 mm;
- the tubular part is made of a transparent material
- the deformable section comprises, preferably consists of
- said right and left side tabs comprising right and left side supports shaped to, in a service position, separate the right and left corners of the user's lips away from the user's teeth, respectively,
- said upper and lower central tabs comprising upper and lower supports shaped to, in the service position, move away from the user's teeth the upper and lower central parts of the user's lips, respectively, which allows clear the teeth for the optical lens;
- a central tongue comprises said abutment member, said abutment member being arranged so that a lateral tongue, preferably a masking flap integrated in a lateral tongue, comes into abutment with said abutment member when said lateral tongue reaches the contracted configuration;
- a lateral tongue comprises said coupling member, preferably a masking flap, said coupling member resting on at least one central tongue, preferably for more than 50%, more than 70%, more than 90%, of preferably substantially 100% (that is to say in permanent support) of the travel of said lateral tongue between the rest and contracted configurations;
- each side support has a free end which, in the rest configuration, extends at a distance (Dyao in Figure 6) from the longitudinal axis X greater than 45 mm, preferably greater than 50 mm, preferably greater than 55 mm, preferably greater than 60 mm, preferably greater than 65 mm, and/or less than 80 mm, preferably less than 75 mm, preferably less than 70 mm, so as to separate elastically a cheek of the user in the service position; the deformability of the deformable section advantageously allows a large spacing of the cheeks, while allowing easy introduction into the mouth;
- the distance (Dyao' in Figure 6) between said free end and the longitudinal axis X is preferably less than 60 mm, preferably less than 50 mm, preferably less than 45 mm, in the contracted position;
- each side support gradually deviates from the longitudinal axis X from the oral opening to a free end of said side support, which advantageously limits the risk of trauma;
- the spacer comprises a mechanism, which can be selectively activated or deactivated, for maintaining the deformable section in the contracted configuration, preferably in the form of a clip or an elastic claw;
- the mechanism can preferably be activated and/or deactivated by moving the tabs, preferably by bringing two antagonistic tabs closer to each other, preferably activatable by bringing the right and left side tabs closer to each other and/or, more preferably, can be deactivated by bringing the upper and lower central tabs together.
- the invention also relates to an acquisition kit comprising:
- a mobile phone equipped with an optical lens for acquiring a 2D representation and/or a 3D representation
- the mobile phone on which the mobile phone is fixed, preferably in a removable manner, optionally by means of an adapter, the mobile phone being fixed on the spacer so that the lens has a view less partial oral opening through acquisition opening.
- the kit comprises an adapter and the non-deformable section of the spacer has a shape complementary to a housing of the adapter, so as to be able to be inserted therein, said insertion preferably activating said fastener, preferably by clipping;
- the objective is less than 2 cm, preferably less than 1 cm from the acquisition aperture.
- the invention also relates to a method for acquiring a 2D or 3D representation by means of an acquisition kit according to the invention, said method comprising the steps following: a) partial introduction, by the user, of the spacer in the mouth of the user up to a service position in which the optical objective of the mobile telephone has a view of the teeth of the user through the oral opening, the spacer supports separating the lips of the user to release said teeth; b) activation, preferably by the user, of the mobile phone so as to acquire said 2D or 3D representation; c) optionally, modification of the positioning of the oral opening relative to the user, for example by rotation around the user, then resumed at step b); d) optionally, disassembly of the acquisition kit, preferably by the user; e) optionally, washing and/or disinfection of the spacer, or even only of the spacer.
- the tubular part of the spacer is configured so as to be entirely on the outside of the teeth in the service position, so as to allow complete occlusion;
- the teeth do not rest on the spacer, so that the user can, by turning his head relative to the spacer, modify the teeth which are visible through the oral opening and/ or change the distance between his dental arches;
- the spacer does not press on the teeth so as to separate the two jaws from each other;
- the optical lens of the mobile phone has a view of more than 2, more than 3, more than 5, more than 10, more than 15, more than 20, preferably more than 30 teeth of l 'user.
- serving position is the position in which the oral opening extends into the user's mouth, as shown in Figure 5.
- An “assembled position” is a position in which the mobile phone is rigidly fixed on the standoff or on an adapter fixed on a standoff.
- An “acquire position” is an assembled position in which the cell phone lens has at least a partial, preferably full, view of the oral aperture, through the acquire aperture and the oral aperture.
- the "service configuration” is the configuration of the spacer in the service position.
- the “resting configuration” is the configuration of the spacer when it is under no stress other than gravity and the corresponding reaction. In the figures, the spacer is shown in the rest configuration. Unless otherwise specified, all spacer dimensions are measured in the rest configuration.
- the "contracted configuration” is the configuration of the spacer when it undergoes a set of constraints conferring a minimal area at the oral opening, without rupture of the spacer.
- a “section” is a fraction of the tubular part delimited by two planes perpendicular to the X axis.
- a section is “deformable” or “non-deformable” depending on whether or not it deforms when a user compresses it between his fingers, without breaking it.
- the deformation is a modification of the shape of the section which modifies the internal volume of said section, and in particular reduces it.
- the deformation of the deformable section can for example lead to a reduction of more than 1%, more than 2%, more than 5%, preferably more than 10%, preferably more than 20% and/or less than 40%, preferably less than 30% of the internal volume of this section.
- the deformation is preferably elastic.
- the interface between the non-deformable section and the deformable section is a plane perpendicular to the X axis positioned, along the X axis, at the place from which the tubular part begins to deform, in particular at the junction of the tab closest to the acquisition opening.
- An object is "elastically mobile” if its position relative to a reference, for example another object, can be modified under the action of a force and if, when this force ceases, it returns to its initial position.
- a support elastically rolls up a lip insofar as it returns to its initial position with respect to the non-deformable section when the action of the lip on it ceases. In other words, the support is elastically movable with respect to the non-deformable section.
- one-piece it is meant that the spacer is made up of a single piece, the deformable section being made in one piece with the non-deforming section.
- the “closed mouth” position is the occlusion position in which the upper and lower teeth of the user are in contact.
- An “open mouth” position is a position in which the upper and lower teeth of the user are not in contact, preferably the fully open position of the mouth.
- a “mobile phone” is a device of the iPhone® type. Such a device typically weighs less than 500 g. He is equipped with a camera allowing him to take films or photos, or even a scanner allowing him to acquire three-dimensional digital models, through an optical lens. A cell phone is also capable of exchanging data with another device more than 500 km away from the cell phone.
- the mobile phone makes it possible to acquire “extraoral” 2D or 3D representations, that is to say without the lens of the mobile phone being introduced into the mouth of the user.
- the optical lens of the mobile phone “has a view” of an object when the triggering of the acquisition of a 2D or 3D representation leads to the recording of a 2D or 3D representation which represents this object.
- a "2D representation” and a “3D representation” are digital objects in two or three dimensions, respectively, acquired by a mobile phone, extraorally, through the optical lens of the mobile phone.
- the “2D representations” acquired by the mobile telephone are images, and in particular conventionally photos and films.
- the “3D representations” acquired by the mobile phone are three-dimensional digital models, or “3D models”.
- image is meant a two-dimensional image, such as a photograph.
- An image is made up of pixels.
- a “movie” is considered a set of photos.
- a 3D model is made up of a set of voxels.
- kit By “user” is meant a person who uses a kit according to the invention to acquire a 2D or 3D representation of at least a part of his teeth, whether this person is sick or not, or whether this person is in the process of orthodontic treatment or not.
- hiding a slot we mean “being shaped to substantially hide the view of the inside of the tubular part when the direction of observation is perpendicular to the outer surface of the tubular part around said slot.
- a vertical axis is an axis which, in the service position, is vertical.
- each side tongue is thus adjacent to the two central tongues, and vice versa
- the qualifiers “exterior” and “interior” refer to closed volumes or contours, to designate an element outside the volume, for example outside a room, or outside the closed contour.
- the outer surface of the tubular part is the surface which is exposed towards the outside of the tubular part.
- first and second are used for clarity only. In particular, the presence of a first brand represented does not imply the presence of other brands represented.
- the orthonormal reference Oxyz is a reference such that, in the service position, the axis Ox) extends horizontally and perpendicular to the general plane of oral opening, the Oz) axis extends vertically, and the Oz) axis extends perpendicular to the Ox) and Oz) axes.
- the axes Ox), Oy) and Oz) are therefore front-rear, right-left and vertical axes, respectively.
- the axis of an opening is the axis that passes through its center, perpendicular to the general plane of the opening.
- First and second lines are said to be perpendicular to each other when first and second planes perpendicular to said first and second lines, respectively, are perpendicular to each other.
- “Fixing” one part to another means establishing a physical link between these two parts, so that any movement of one of these parts ends up causing that of the other part.
- a part mounted in translation, rotation or ball joint on another part is “fixed” to this other part.
- An attachment can be “definitive” or “removably”, depending on whether or not the two parts are suitable for separation, preferably by hand, by a user.
- a fixing can be rigid or not, depending on whether or not it allows relative movement of the two parts fixed to each other. It is considered that an element coming from material with another is “fixed” on this other element.
- Figure 1 shows a kit according to the invention, in perspective, in the assembled position, from behind to the left above (IA), from behind to the right below (IB), from below to the right in front ( IC), and bottom face (1D);
- Figure 2 shows the spacer of the kit of Figure 1, in perspective
- Figure 3 shows the adapter of the kit in Figure 1, in perspective
- FIG 4 illustrates tests with a conventional spacer (photos on the left) and with a spacer according to the invention (photos on the right);
- Figure 5 schematically illustrates the service position, the user being seen from the front ( Figure 5A) and from the side ( Figure 5B);
- Figure 6 shows the spacer of Figure 1, seen from above, in the rest configuration, the broken lines illustrating the flexibility of the side tabs and the measurements, in mm, corresponding to a preferred flexibility;
- Figure 7 shows the spacer of Figure 1, seen from the side, in the rest configuration, the broken lines illustrating the flexibility of the central tabs and the measurements, in mm, corresponding to a preferred flexibility;
- Figure 8 shows the spacer of Figure 1, seen from the front, in the rest configuration
- Figure 9 shows the spacer of Figure 1, seen from the side, in the retracted configuration
- Figure 10 illustrates the deformability of a central tab of the spacer of Figure 1;
- Figure 11 illustrates an embodiment in which the locked position of a tongue can be locked by means of a claw.
- a generic reference may be used in the description to designate a component in a generic way, for example a tab, only particular references, corresponding to variations of the generic reference (for example to designate the upper tabs, lower, right and left), being however represented in the figures.
- a spacer according to the invention may in particular comprise one or more of the following optional characteristics:
- the area of the oral opening is preferably greater than 1500 mm 2 , preferably greater than 1800 mm 2 , preferably greater than 2000 mm 2 , preferably greater than 2100 mm 2 , preferably greater than 2200 mm 2 , and/or less than 3000 mm 2 , preferably less than 2800 mm 2 , preferably less than 2600 mm 2 , preferably less than 2500 mm 2 , preferably less than 2400 mm 2 ;
- the area of the oral opening is preferably greater than 500 mm 2 , preferably greater than 800 mm 2 , preferably greater than 1000 mm 2 , preferably greater than 1100 mm 2 , preferably greater than 1200 mm 2 , preferably greater than 1300 mm 2 , and/or less than 2000 mm 2 , preferably less than 1800 mm 2 , preferably less than 1600 mm 2 , preferably less than 1500 mm 2 , preferably less than 1400mm2 ;
- the length of the tubular part, measured along the X axis, between the acquisition opening and the oral opening is greater than 3 cm, preferably greater than 4 cm, preferably greater than 5 cm, and / or less than 20 cm, preferably less than 15 cm, preferably less than 10 cm, preferably less than 8 cm, preferably less than 7 cm, preferably less than 6 cm, preferably less than 5.5 cm ;
- the length of the undeformable section, measured along the X axis, between the acquisition opening and the deformable section is greater than 0.5 cm, preferably greater than 1 cm, preferably greater than 1.5 cm , preferably greater than 2 cm, and/or less than 20 cm, preferably less than 10 cm, preferably less than 5 cm, preferably less than 4 cm, preferably less than 3 cm, preferably less than 2, 5cm;
- the length of the deformable section, measured along the X axis, up to the oral opening is greater than 0.5 cm, preferably greater than 1 cm, preferably greater than 1.5 cm, preferably greater than 2 cm, preferably greater than 2.5 cm, and/or less than 20 cm, preferably less than 10 cm, preferably less than 5 cm, preferably less than 4 cm, preferably less than 3.5 cm ;
- the spacer is symmetrical with respect to a vertical plane
- the spacer is symmetrical with respect to a horizontal plane
- the oral opening has an area greater than 7 cm 2 , preferably greater than 10 cm 2 , preferably greater than 15 cm 2 , preferably greater than 20 cm 2 and/or less than 30 cm 2 ;
- the tubular part comprises a wall which delimits a substantially closed chamber, that is to say substantially devoid of opening, apart from the oral and acquisition openings;
- the chamber is preferably empty, and in particular that does not enclose any lens or lighting device;
- the chamber has the shape of a cylindrical or tapered tube; - the inner and/or outer surface of the wall delimiting said chamber is smooth to the touch and preferably devoid of any roughness or cavity;
- the spacer is configured in such a way as to leave the view completely unobstructed through the oral opening from the acquisition opening, preferably without tongue support;
- the spacer in particular the undeformable section, comprises a fastener by means of which
- the mobile phone is attached to the spacer or
- the non-deformable section and/or the deformable section comprise a wall having a thickness greater than 0.3 mm, preferably greater than 0.5 mm, preferably greater than 0.8 mm and/or less than 8 mm, preferably less than 5 mm, preferably less than 3 mm, preferably less than 2 mm, preferably less than 1.5 mm, preferably constant;
- the deformable section comprises slots extending from the oral opening, preferably as far as the non-deformable section, so as to define flexible tongues;
- each slot is rectilinear, or in the shape of an "L” or a "T";
- each slot extends, partially or totally, in a plane passing through the X axis;
- a slot delimiting a tab extends partially in a plane passing through the axis X, then extends, preferably in a plane perpendicular to the axis X, so that the junction between said tab and the non-deformable section has a lower length, preferably at least 1.1 times lower, preferably at least 1.2 times lower than the width of the tongue at mid-length of the tongue;
- each slit widens as it approaches the oral opening
- each slot has a maximum width (measured perpendicular to the direction of the length of the slot) and/or a minimum width of less than 3 mm, preferably less than 2 mm, preferably less than 1 mm , and/or greater than 0.1 mm;
- each tab partially defines said chamber
- each tongue is physically connected to the section non-deformable by a junction extending over a width (I32 in FIG. 8) greater than 5 mm, preferably greater than 10 mm, preferably greater than 15 mm, preferably greater than 20 mm, preferably greater than 25 mm, and/or less than 80 mm, preferably less than 60 mm, preferably less than 50 mm, preferably less than 40 mm;
- each tongue extends in a transverse plane, that is to say perpendicular to the X axis;
- each tongue extends in the extension of the inner surface of the non-deformable section, so that the junction of the tongue does not create any roughness or cavity;
- the number of tabs is greater than 2 and/or less than 10, preferably less than 5, preferably 4;
- the deformable section comprises 4 tabs, equiangularly distributed around the axis X, each tab being preferably symmetrical to the tab which faces it;
- the deformable section has two lateral tabs defining the right and left ends of the oral opening, and two central tabs defining the upper and lower ends of the oral opening;
- the lengths of the various tabs, from their junctions to the oral opening are preferably identical, but may be different;
- At least the lengths of the various lateral tabs are identical, and preferably, at least the lengths of the various central tabs are identical;
- each central tab carries one or more stiffening ribs, preferably extending in a plane passing through the X axis;
- the deformability of a central tongue is such that the free end of the central support of a central tongue moves by 3 mm, under the effect of a centripetal force, that is i.e. oriented towards the X axis, exerted in the general plane of the oral opening, greater than 5 N, preferably greater than 10 N, preferably greater than 13 N, and/or less than 30 N, of preferably less than 25 N, preferably less than 20 N, preferably less than 17 N, the distance being measured perpendicular to the X axis, as illustrated in FIG. 10;
- the deformability of a central tongue is such that the free end of the central support of a central tab moves 10 mm, under the effect of a centripetal force, that is to say oriented towards the X axis, exerted at the end of the central tongue, greater than 0.5 N, preferably greater than 1.0 N, preferably greater than 1.5 N, and/or less than 5 N, preferably less than 3 N, preferably less than 2, 5 N, the distance being measured perpendicular to the X axis, as shown in Figure 7;
- each tongue comprises at least one masking flap masking at least partially, preferably completely, a slot delimiting said tongue, preferably at least in the service position, preferably regardless of the deformation of the deformable section;
- each masking flap extends until it partially covers an adjacent tongue, preferably at least in the service configuration, preferably regardless of the deformation of the deformable section;
- a tongue comprises a coupling member, for example a pin, preferably integrated in a masking flap, configured to bear against an adjacent tongue when the deformable section is deformed from the rest configuration to the contracted configuration, preferably at least in the rest configuration, preferably regardless of the configuration of the deformable section between the rest configuration and the operating configuration;
- a coupling member for example a pin, preferably integrated in a masking flap, configured to bear against an adjacent tongue when the deformable section is deformed from the rest configuration to the contracted configuration, preferably at least in the rest configuration, preferably regardless of the configuration of the deformable section between the rest configuration and the operating configuration;
- each coupling member resting on an adjacent tongue is shaped so that a centripetal thrust on said tongue pushes and moves the adjacent tongue towards the X axis;
- each tab resting on an adjacent tab is shaped so that, during said movement, said tab, and preferably a masking flap of said tab, slides on the adjacent tab, said adjacent tab comprising a abutment member limiting the travel of said tongue;
- a central tongue comprises a so-called "central" abutment member, preferably limiting the approximation of an adjacent lateral tongue towards the axis X, preferably by abutment of said lateral tongue, preferably by abutment of a masking flap of said lateral tab, on said abutment member; - the spacer is in the contracted position when the abutment member limits the approximation of an adjacent lateral tongue towards the X axis, a gap being maintained, in said position between the lateral tongue and the adjacent central tongue, the gap preferably being greater than 1 mm, 3 mm, 5 mm, so as to limit the risk of pinching the tongue;
- each lateral tongue comprises said "upper” and “lower” coupling members, preferably integrated in masking flaps, shaped to press on an upper central tongue and a lower central tongue, respectively, of so as to push said upper and lower central tabs towards the X axis when said central tab is pushed towards the X axis; the reaction exerted by a central tongue on a side tongue limits the possibility of bending of the side tongue, so that the flexibility of the side tongues is less than that of the central tongues;
- each tongue comprises, beyond the oral opening, a support intended to rest on part of the lips of the user in the service position;
- each side tab comprises a "side" support, the side support being shaped to spread the cheeks of the user in the service position;
- each side support has the shape of a tongue; advantageously, the risk of the lip escaping during a lateral displacement of the spacer is thereby reduced, or even eliminated,
- each lateral support is preferably concave towards the X axis;
- the distance, in the direction of the X axis (Ox axis)), between the oral opening and the free end of said lateral support, preferably of each lateral support, is greater than 20 mm , preferably greater than 25 mm, preferably greater than 30 mm, preferably greater than 35 mm, and/or less than 60 mm, preferably less than 50 mm, preferably less than 55 mm;
- the distance, measured perpendicular to the direction of the X axis (Oy axis)), between the X axis and the free end of said lateral support, preferably of each lateral support, is greater than 40 mm, preferably greater than 50 mm, of preferably greater than 60 mm, and/or less than 90 mm, preferably less than 80 mm, preferably less than 70 mm; advantageously, the deformability of the deformable section allows the spacer to include side supports, the free end of which deviates greatly from the axis X, the spacer being able to be introduced into the mouth thanks to said deformability;
- the distance (Dxao' in FIG. 6), in the direction of the X axis (Ox axis)), between the general plane of the oral opening and the free end of the said lateral support, of preferably of each side support, is greater than 30 mm, preferably greater than 35 mm, preferably greater than 40 mm, preferably greater than 45 mm, and/or less than 70 mm, preferably less than 60 mm, preferably less than 50mm;
- the distance, measured perpendicular to the direction of the X axis (Oy axis)), between the X axis and the free end of said side support, preferably of each side support, is greater than 30 mm, preferably greater than 35 mm, preferably greater than 40 mm, and/or less than 70 mm, preferably less than 60 mm, preferably less than 50 mm;
- the deformability of a side tongue is such that the free end of the side support of a side tongue moves 10 mm, under the effect of a centripetal force, that is i.e. oriented towards the X axis, exerted at the free end of the lateral tongue (illustrated by the arrow F in figure 6), greater than 2 N, preferably greater than 3 N, preferably greater than 4 N, preferably greater than 5 N, preferably greater than 5.5 N, and/or less than 12 N, preferably less than 10 N, preferably less than 9 N, preferably less than 8 N, the distance being measured perpendicular to the X axis, as shown in Figure 6;
- each side support preferably of each side support, has an outer surface and/or an inner surface (oriented towards the X axis) which are smooth to the touch;
- the outer surface of a lateral support does not present any obstacle projecting from said surface, preferably at least in the sliding zone (Lsoa in FIG. 6) on which the labial commissure resting on said side support slides when, in the service position, the user rotates the kit around him; in particular, the lateral support does not form a chute capable of hooking said labial commissure, like conventional dental retractors;
- the outer surface of a side support preferably of each side support, deviates from the X axis, from the oral opening, preferably from the junction of the side support with the non-deformable section, to its end free;
- the gradient of said spacing (dy/dx) along the X axis increases from the oral opening, preferably from the junction of said lateral support, preferably of each lateral support, with the non-deformable section, to a position, along the X axis, less than 2 cm from the position, along the X axis, of said free end of the lateral support considered;
- the gradient of said spacing (dy/dx) along the X axis decreases from a position, along the X axis, less than 1 cm from the position, along the X axis, from said free end of the lateral support considered to said position of said free end;
- the greatest width of a side support, preferably of each side support, is greater than 10 mm, preferably greater than 15 mm, preferably greater than 20 mm, and/or less than 40 mm, preferably less than 30 mm preferably less than
- the greatest thickness of the side support, preferably of each side support, is greater than 0.5 mm, preferably greater than 1 mm and/or less than 4 mm, preferably less than 3 mm, preferably less than 2 mm ;
- each central tongue preferably each central tongue, carries a "central" support, the central support being shaped to separate a lip from the user in the service position;
- each central support has a general "T" shape (for example as shown in Figure 6), preferably concave towards the X axis;
- the distance, in the direction of the X axis (Ox axis)), between the oral opening and the free end of said central support, preferably of each central support, is greater than 15 mm , preferably greater than 20 mm, preferably greater than 25 mm, and/or less than 40 mm, preferably less than 35 mm, preferably less than 30 mm;
- the distance (Dzao in Figure 7), measured perpendicular to the direction of the X axis (Oz axis)), between the X axis and the free end of said central support, preferably of each central support, is greater than 15 mm, preferably greater than 20 mm, preferably greater than 30 mm, and/or less than 50 mm, preferably less than 40 mm, preferably less than 35mm;
- the distance, in the direction of the X axis (Ox axis)), between the oral opening and the free end of said central support, preferably of each central support, is greater than 15 mm, preferably greater than 20 mm, preferably greater than 25 mm, and/or less than 40 mm, preferably less than 35 mm, preferably less than 30 mm;
- the distance (Dzao' in Figure 7), measured perpendicular to the direction of the X axis (Oz axis)), between the X axis and the free end of said central support, preferably each central support, is greater than 10 mm, preferably greater than 15 mm, preferably greater than 20 mm, and/or less than 35 mm, preferably less than 30 mm, preferably less than 25 mm;
- each central support has an outer surface and an inner surface (oriented towards the X axis) which are smooth to the touch;
- the outer surface of said central support preferably of each central support, does not present any obstacle projecting from said outer surface, preferably at least in the sliding zone on which the lip resting on the central support in question slides when , in the service position, the user raises or lowers the spacer in order to take occlusal views;
- the central support considered does not form a chute capable of hooking said lip, like conventional dental retractors;
- the gradient of said spacing (dy/dx) along the X axis increases from the oral opening, preferably from the junction of the central support considered to the position of the free end of said support center considered;
- the greatest width of the central support, preferably of any central support is greater than 20 mm, preferably greater than 30 mm, preferably greater than 40 mm, and/or less than 70 mm, preferably less than 60 mm, preferably less than 50 mm;
- the greatest thickness of the central support, preferably of any central support is greater than 0.5 mm, preferably greater than 1 mm and/or less than 4 mm, preferably less than 3 mm, preferably less than 2mm;
- the spacer comprises right, left, upper and lower supports intended to rest, in the service position, on the right labial commissure, the left labial commissure, the central part of the upper lip and the central part of the lip lower part of a user, respectively, and integrated into said right, left, upper and lower tabs, respectively;
- said tabs are shaped so that bringing the right and left supports closer to each other causes the upper and lower supports to move towards each other, or vice versa;
- the spacer comprises a clip adapted to the fixing, preferably removable, of a mobile telephone or of an adapter on which is fixed, preferably in a removable manner, a mobile telephone, in an acquisition position in which a The cell phone's optical lens has at least a partial view of the oral aperture through the acquisition aperture.
- the side ends of the oral opening move more than 5 mm, more than 7 mm, more than 8 mm and/or less than 12 mm, preferably less than 11 mm, preferably less than 10 mm, preferably 9 mm, along the direction Oy), between the rest position and the contacted position.
- the kit 10 shown in Figure 1 includes a cell phone 12, a spacer 14, and an adapter 16, shown in detail in Figure 3.
- Any conventional cell phone can be used.
- the mobile phone 12 is a personal device, conventionally of substantially parallelepiped shape, conventionally comprising a camera.
- a cell phone typically has:
- the screen 20 covers substantially the entire rear face. It serves as the interface for the user. In particular, it allows him to view what the optical lens 18 "sees", that is to say the "view” of the optical lens.
- the screen 20 is touch-sensitive and makes it possible to control functions of the mobile telephone.
- the optical lens 18 conventionally has an optical axis perpendicular to the front face, and allows the acquisition of 2D representations, as in FIG. 4, or even 3D. In particular, it allows the acquisition of color photos, and/or infrared photos. Infrared photos advantageously make it possible to show the teeth with excellent contrast.
- Mobile phone 12 is attached, preferably removably, to spacer 14, preferably via an adapter 16.
- the spacer 14, of longitudinal axis X comprises a tubular part 22, and a set of supports 24 intended to rest on respective parts of the lips in the service position.
- the spacer 14 is in one piece, all the supports being made in one piece with the tubular part.
- its manufacturing cost is limited and its use facilitated.
- the spacer is shaped to be removable, preferably so as to be manufactured by injection of a mouldable material, preferably a polymer, into a mould.
- a mouldable material preferably a polymer
- the tubular part 22 defines a chamber 26.
- the cross section of the chamber that is to say in a section plane perpendicular to the axis X, can be constant or variable along the axis X.
- the spacer has an inner surface that is smooth to the touch, devoid of any protruding edge and/or devoid of re-entrant edge, and in particular devoid of the projections described below, a section of the chamber being a fraction of the chamber delimited by two planes perpendicular to the X axis.
- the tubular part 22, of axis X opens through an acquisition opening Oa and, on the opposite side, through the oral opening Oo, preferably coaxial with the acquisition opening.
- the chamber 26 opens to the outside only through the oral Oo and acquisition Oa openings.
- the chamber 26 may however have side openings, for example slots such as the slots 38 described below, which place it in fluid communication with the external environment of the chamber, provided that the general shape of the chamber is tubular.
- the total area of the lateral openings represents less than 10%, less than 5%, or even less than 2% of the lateral surface of the chamber between the oral openings Oo and acquisition Oa.
- the spacer is shaped so that, when it is observed radially with respect to the axis X, the chamber appears, whatever the point of observation, delimited by a substantially solid wall, devoid of opening lateral or having only slots with a width of less than 4 mm, preferably less than 3 mm, preferably less than 2 mm, preferably less than 1 mm.
- the spacer is shaped so that the oral opening Oo is, in the service position, and in particular when the lips of the user rest on the central and/or lateral supports, less than 3 cm, preferably less than 2 cm, preferably less than 1 cm from the general plane of the user's mouth, preferably in or against the user's mouth.
- the spacer is shaped so that, in the assembled position, the optical lens 18 of the mobile phone extends to close to the Oa acquisition opening.
- the distance between the optical objective 18 and the acquisition aperture Oa, measured parallel to the X axis, may be less than 0.5 cm, preferably less than 0.2 cm, preferably substantially zero, in particular if the mobile phone is attached directly to the spacer, preferably so as to close off the acquisition opening Oa.
- the kit comprises an adapter 16 which imposes, in the assembled position illustrated in FIG. 1, a distance d between the acquisition aperture Oa of the spacer 24 and the optical objective 18, measured parallel to the axis X, greater than 0.5 cm, greater than 1 cm, greater than 2 cm, and/or less than 4 cm, preferably less than 3 cm.
- the smallest dimension of the oral opening, in the rest configuration, and/or of the acquisition opening is greater than 1 cm, preferably greater than to 2 cm, preferably greater than 3 cm, and/or less than 5 cm, preferably less than 4 cm.
- the largest dimension of the oral opening, in the rest configuration, and/or of the acquisition opening is greater than 2 cm, preferably greater than than 3 cm, preferably greater than 4 cm, preferably greater than 5 cm, and/or less than 10 cm, preferably less than 9 cm, preferably less than 8 cm, preferably less than 7 cm, preferably less at 6cm.
- the ratio, in the rest configuration, of the area of the oral opening to the area of the acquisition opening is greater than 1, preferably greater than 1.2, preferably greater than 1 .3 and/or less than 1.7, preferably less than 1.6, preferably less than 1.5.
- the tubular part 22 has the function of defining a spacing between the mobile phone and the oral opening Oo as well as, preferably, a predefined orientation of the mobile phone with respect to the oral opening.
- the representations (images or 3D models) acquired by the mobile telephone 12 through the optical lens 18 are thus acquired at a predetermined distance from the teeth of the user and according to a predefined orientation.
- the spacer 14 is configured so that this spacing and this orientation are constant.
- the tubular part 22 may have a constant or variable section, preferably substantially rectilinear with axis X, in particular have the general shape of a cylindrical tube, for example of circular, oval or polygonal section, for example rectangular, or of a tapered tube.
- the length L22 of the tubular part 22 of the spacer 14, measured along the axis X is preferably greater than 3 cm, preferably greater than 4 cm, preferably greater than 5 cm, and/or less than 25 cm, preferably less than 20 cm, preferably less than 15 cm, preferably less than 10 cm, preferably less than 8 cm, preferably less than 7 cm.
- the width I22 of the tubular part 22 of the spacer 14, that is to say its largest dimension in a transverse plane, considering all the transverse planes along the axis X, is preferably greater than 2 cm and/or less than 10 cm.
- the height I122 of the tubular part 22 of the spacer 14, that is to say its smallest dimension in a transverse plane, considering all the transverse planes along the axis X, is preferably greater than 2 cm, preferably greater than 4 cm, preferably greater than 6 cm, preferably greater than 7 cm and/or less than 10 cm, preferably less than 9 cm.
- the thickness of the tubular part of the spacer is constant, preferably over the entire length of the tubular part, preferably greater than 0.5 mm, preferably greater than 1 mm and/or less than 8 mm , preferably less than 5 mm.
- the tubular part 22, preferably the entire spacer 14 is made of a transparent material.
- the oral opening can thus be illuminated by a flash of the mobile telephone which is not facing the acquisition opening.
- the tubular part 22, preferably the entire spacer 14, is preferably made of a rigid material, preferably a polymer, for example polyethylene PE, polyethylene terephthalate PET, polystyrene PS or polypropylene PP, preferably made of polycarbonate PC, advantageously transparent, is sterilizable.
- the tubular part 22, preferably the entire spacer 14 is made of a recyclable material, preferably biodegradable.
- the tubular part 22 comprises a non-deformable section 22i and a deformable section 22 2 .
- the non-deformable section has sufficient rigidity so that the non-deformable section does not deform during normal use of the tubular part, in particular when a telephone or an adapter is fixed against the acquisition opening or when the user clamps the non-deformable section in the service position. In particular, no significant deformation is detectable, with the naked eye, when a user squeezes the non-deformable section in his hands.
- the non-deformable section comprises a clip 28 capable of cooperating, in said acquisition position, with the mobile phone or, preferably, with an adapter on which the mobile phone is fixed, in order to hold the mobile phone in position.
- the fastener is preferably configured to maintain its shape when used for said attachment, which makes it more reliable. It is preferably formed by a recess and/or a bead of material, preferably on the outer surface of the non-deformable section.
- the distance between the attachment and the acquisition opening is preferably less than 3 cm, preferably less than 2 cm, preferably less than 1 cm, preferably less than 0.5 cm.
- the deformable section is a section of the tubular part, that is to say a fraction of the tubular part between two planes perpendicular to the axis X, which the user can deform, by hand and without tools, preferably with one hand, preferably elastically, to change its shape.
- the oral opening In the rest configuration of the deformable section, for example when the spacer is placed on a table, the oral opening has a maximum area.
- compression preferably with one hand, the user can however reduce the area of the oral opening, as explained below, to a "contracted" configuration, in which the area of the oral opening is minimal.
- the deformation is elastic, so that when the user releases the compression, the spacer returns to the rest configuration.
- the difference between the maximum area and the minimum area allows the spacer to be provided with supports of large dimensions, in particular for separating the cheeks, while allowing easy introduction of said supports into the mouth.
- the deformable section carries supports intended to be introduced between the lips and the teeth of the user.
- the lips can thus be separated so as not to block the oral opening Oa.
- the supports facilitate the retention of the spacer 14 in the user's mouth.
- the supports are integral with the tubular part 22 of the spacer 14, which limits manufacturing costs and reduces the number of edges. Hygiene is improved. They can be made of an elastomer, for optimal comfort.
- the set of supports comprises two lateral supports, namely a right support 24d and a left support 24g, intended to rest on the right and left commissures of the lips of the user, respectively, and two central supports, namely an upper support 24s and a lower support 24i intended to rest on the central parts of the upper and lower lips of the user.
- a central support may comprise, in the middle of the support, a notch 44, so as to leave free the labial brake present at the level of the upper and lower arches of the user.
- the notch improves user comfort when the dental retractor is in the service position.
- the notch also allows the spacer 14 to be moved in the mouth of the user, in particular rotations around the dental arches for the acquisition of photos or 3D models in lateral views.
- the notch may for example have a triangular, rounded or rectangular shape.
- the length of the notch is preferably greater than 3 mm, greater than 5 mm, or even greater than 10 mm, or even greater than 15 mm, and/or less than 50 mm, preferably less than 30 mm, preferably less than 20mm.
- Each central support preferably has a length L24s, measured along the main direction of the central support, greater than 1 cm, preferably greater than 2 cm, preferably greater than 3 cm and/or less than 15 cm, preferably less than 12 cm, preferably less than 8 cm.
- the length of the upper and lower supports is preferably the same.
- the lateral brackets are shaped to be interposed between the lips and the teeth.
- the central and/or lateral supports are not shaped in the form of chutes. They offer only a limit to the movement of the lips towards the teeth, which makes it possible to release the latter, but allow the movement of the lips in the opposite direction. Preferably, they offer no obstacle to said movement in said opposite direction, away from the teeth. The comfort is considerably increased when the user must acquire 2D or 3D representations from different points of view and must therefore move the mobile phone to the right, left, up or down.
- the side supports not only have a teeth-spreading function, but also a cheek-spreading function. Their great length allows a very effective spacing of the cheeks, as illustrated in figure 4.
- the free end 30 of the supports (referenced 30s, 30i, 30d and 30g for the upper, lower, right and left supports, respectively) is preferably rounded, so as to be atraumatic.
- the supports extend outside of a theoretical tube extending along the outer surface of the tubular part and extending beyond the oral opening.
- Each support defines the free end of a respective tongue, the opposite end of which is connected to the non-deformable section.
- the region at the interface between a tab and the deformable section is called “junction” 32.
- the junction and/or the shape of the tab are shaped so that each tab can be elastically moved away from its position in the rest configuration, so that its free end is pushed towards the X axis, and thus the area of the oral opening may be reduced.
- the arrow F in figure 6 illustrates a force to exert a centripetal thrust making it possible to move the free end 30g of the left tab towards the X axis.
- the set of tongues consisting of a right tongue 34d, a left tongue 34d, an upper tongue 34s and a lower tongue 34i, defines the deformable section.
- the upper 34s and lower 34i tongues that is to say the central tongues, can carry stiffening ribs 36.
- the space between two adjacent tongues is called "slot" 38.
- the approximations of the two lateral tongues, that is to say carrying the side supports, and of the two central tongues, that is to say carrying the central supports are coupled, that is to say that 'a bringing together of the two lateral tabs to each other produces a bringing together of the two central tabs to each other, or a bringing together of the two central tabs to each other produces a bringing together of the two side tabs.
- the coupling member providing said coupling is preferably a pin 39 integral with the flap 40 of a tongue, resting on an adjacent tongue, and shaped so as to exert an increasingly strong centripetal thrust as said tongue approaches axis X.
- the coupling member can rest on a boss 41, or “cam” of the adjacent tongue.
- each side tab carries two said flaps, resting on the two central tabs, respectively.
- a pinch to bring the two side tabs closer to each other therefore leads to a double action on each central tab, by each of the side tabs adjacent to said central tab.
- an abutment member 42 limits the bringing together of the two lateral tabs with each other and of the two central tabs with each other.
- the sliding of a flap from a side tab on a central tab can be blocked by contact of the flap on an abutment member carried by said central tab.
- the abutment members advantageously make it possible to define the minimum area of the oral opening, that is to say the contracted configuration of the spacer. To reduce the area of the oral opening as much as possible, the user simply needs to bring the two side tabs closer to each other and the two central tabs to each other until they feel the abutment.
- the abutment members also facilitate the handling of the spacer, the user being able to tighten the lateral tabs without risking breaking the spacer.
- the abutment members 42 are attached to the central tabs, preferably integral with the central tabs.
- each lateral tongue may comprise an elastic claw which hooks a respective central tongue before reaching the stop position.
- the holding members in the locked position such as the claws, can be unlocked by bringing the central tabs closer together.
- FIG 11 illustrates such an embodiment.
- a lateral tongue 341 (34d or 34g) is provided with an elastic claw 43 configured to engage elastically in a cavity 45 provided in a central tongue 34c (34s or 34i) when the contracted configuration is reached. This engagement thus prevents sliding of the lateral tab towards the rest configuration (arrow F1), and thus keeps it in the contracted configuration.
- the free end of the claw 43 is the part of the lateral tongue which comes into abutment with the abutment member 42 of the central tongue, so as to define the contracted configuration and prevent slippage, according to the arrow F2 , from the lateral tongue beyond the contracted configuration.
- each flap is a masking member which extends between two adjacent tabs and is shaped to mask the space which separates these two tabs, or “slots”, which separate the two tabs.
- the flap 40 comes to the limit of the central tab 34s. It is separated from it only by the slot 38.
- the flap 40 comes to cover the slot 38, then slides on the tab central, this sliding contact pressing on the central tongue to bend it towards the X axis, as illustrated in figure 7.
- the masking of the space extending between two adjacent tabs advantageously limits the entry of light into the chamber of the tubular part, which facilitates the acquisition of good quality images.
- the cutout of the deformable section to define the flap of the right tab has been highlighted by a very thick line C40.
- the slot delimiting the straight tab has the general shape of an "L”, extending partially in a plane passing through the X axis, then extending in a plane perpendicular to the X axis. also have the general shape of a "T”, the crossbar of which preferably extends in a plane passing through the X axis.
- FIG. 8 shows that the junction between said tab and the non-deformable section, in the plane of the oral opening Oo, thus has a width I32 that is less, preferably at least 1.1 times less, preferably at least 1.2 times less than the 134g width of the tongue at mid-length of the tongue, which takes into account the presence of the flaps.
- the support of the side tongue on the central tongue extends for more than 50%, more than 70%, more than 90%, preferably substantially 100% (which corresponds to permanent contact) of the stroke of the flap between the rest and contracted configurations.
- the function of the adapter 16 is to removably attach the cell phone to the spacer, and to position it precisely and easily in an acquisition position allowing the lens 18 of the cell phone 12 to observe the oral opening Oa through acquisition opening Oa.
- the adapter 16 is configured so that this position can be modified.
- the mobile telephone can also be introduced into a shell, a cover or a box, fixed on a base of the spacer or the adapter. This list of examples is not limiting.
- the adapter 16 is configured to allow the fixing of different mobile phones, and in particular mobile phones having different dimensions.
- the cell phone 12 is held on the adapter or spacer 16 by clamping.
- the adapter 16 comprises a base 46, a first jaw 481 and a second jaw 482, opposite the first jaw, configured to grip and clamp the mobile phone 12, preferably by pressing the song of the mobile phone.
- the adapter 16 is rigidly attached to the spacer 14 in a definitive manner, or even having been made in one piece with the spacer.
- the adapter 16 is preferably rigidly attached to the spacer 14 in a removable manner.
- the spacer 14 can be cleaned or sterilized independently of the adapter.
- the spacer has one end housed, preferably nested in a housing of complementary shape defined by the adapter.
- the spacer is shaped so that the deformability of the deformable section is not modified due to the assembly of the spacer to the adapter and/or due to the attachment of the mobile telephone to the spacer, directly on the spacer or via an adapter.
- the kit is in the disassembled position.
- the user clips the spacer 14 onto the adapter 16, by introducing the end of the spacer 14 opposite the oral opening Oa inside the housing of complementary shape defined by the adapter.
- the clipping preferably results from the hooking of claws of the adapter in recesses made on the outer surface of the spacer 14. After clipping, the spacer and the adapter together define the chamber 26.
- the spacer is then in rest configuration. In this configuration, the user cannot put all the supports in his mouth.
- the area of the oral opening is then minimal, and the spacer is in the contracted configuration.
- the user can then introduce all the supports between his lips and his teeth. After completing this introduction, the user releases the pressure on the two side tabs. The spacer then tends to return elastically to the rest configuration. This return is however hindered by the action of the cheeks on the lateral supports, and by the action of the central parts of the lips and the corners of the lips on the central and lateral supports, respectively. These springy actions effectively pull the cheeks and lips away from the teeth, allowing the cell phone lens to have a clear view of the teeth.
- the elasticity allows the spacer to adapt to the morphology of the user, so that the spacer can be available in only one size for the whole population.
- the user then positions the oral opening in front of the teeth for which he wants to acquire one or more 2D or 3D representations, preferably taking pictures or acquiring a scan. He is then in a service position.
- the user By pressing the mobile phone shutter, the user acquires a 2D or 3D representation.
- the user then moves the oral opening to acquire 2D or 3D representations in other orientations of the cell phone relative to the user's teeth.
- the user allows the mobile phone to observe different regions of its mouth, for example to take pictures of the dental arch or the teeth at the back of the mouth.
- the user can advantageously squeeze the side tabs together again, to contract the oral opening.
- the contracted configuration is defined by one or more abutment members such that in the contracted configuration a gap remains between adjacent supports.
- the distance between any lateral support and each of the central supports adjacent to said lateral support is greater than 1 mm, preferably greater than 2 mm, preferably greater than 5 mm, preferably greater than 8 mm, preferably greater than 10 mm, and/or less than 30 mm, preferably less than 20 mm.
- the user does not risk pinching himself, and in particular pinching a cheek or his tongue, between the central tabs and the side tabs.
- the user acquires 2D or 3D representations by acquiring at least a front view, a right view and a left view.
- the spacer does not prohibit bringing the user's jaws closer or apart. It thus authorizes the acquisition, in particular of photos representing the teeth of the user, while the user has his mouth open or his mouth closed, keeping the lips turned up.
- the user acquires 2D or 3D representations by acquiring at least one open mouth view and at least one closed mouth view, preferably each time for front, right and left views.
- the spacer When the user turns the spacer to the right (or left) the right (or left, respectively) labial commissure slides into the sliding zone 50d.
- This area is devoid of obstacles, which facilitates this sliding and makes the spacer particularly comfortable.
- the length of the sliding zone Lsoa advantageously allows a large amplitude of rotation of the spacer without the right (or left, respectively) labial commissure escaping and obstructing the view of the optical objective.
- the order of operations can be modified.
- the user can attach the spacer to the adapter before or after attaching the mobile phone.
- the disassembly of the spacer can be earlier or later than that of the mobile phone.
- the invention limits the risk of acquiring photos or 3D models with a spacer unsuitable for the user.
- the kit allows rapid acquisition, in excellent hygienic conditions, typically in less than a minute, without the need for a specialized person, in particular a dentist or an orthodontist.
- the acquisition can in particular be carried out by the user himself or by a relative, with a simple mobile phone, anywhere, and in particular outside a medical, dental or orthodontic office.
- acquisition is possible without using a tool resting on the ground to immobilize the mobile phone, and in particular without a tripod.
- kit allows a fast and reliable fixing of the mobile phone, whatever its thickness, without risk of damaging it. It can be implemented within the framework of the method described in PCT/EP2015/074896.
- the shape of the spacer is not limiting.
- the chamber opens only through the oral and acquisition openings. This embodiment is however not limiting, the chamber may include other openings.
- the masking and coupling members are not necessarily the same member (shutter).
- the modification of the oral opening by deformation of the deformable section is not limited to deformation by bending of tabs. It could, for example, result from a rotation of the tongues around their junctions with the non-deformable section or from the implementation of a mechanical mechanism.
- DX3O' distance from a free end of a support (30g), in the direction of the X axis, between the general plane of the oral opening and the free end of said support
- Dyso distance between the X axis and a free end of a support, along the Oy axis), in the rest configuration
- Dyso' distance between the X axis and a free end of a support, along the Oy axis), in the contracted configuration
- DZ3O distance between the X axis and a free end of a support, along the Oz axis), in the rest configuration
- DZ3O' distance between the X axis and a free end of a support, along the Oz axis), in the contracted configuration
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Dentistry (AREA)
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Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202280087706.9A CN118510435A (zh) | 2021-12-15 | 2022-12-12 | 用于牙科采集的间隔件 |
| EP22835674.7A EP4447772A1 (fr) | 2021-12-15 | 2022-12-12 | Espaceur pour acquisition dentaire |
| US18/719,146 US20250120585A1 (en) | 2021-12-15 | 2022-12-12 | Spacer for dental acquisition |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2113577A FR3130123B1 (fr) | 2021-12-15 | 2021-12-15 | Espaceur pour acquisition dentaire |
| FRFR2113577 | 2021-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023110743A1 true WO2023110743A1 (fr) | 2023-06-22 |
Family
ID=80999392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2022/085370 Ceased WO2023110743A1 (fr) | 2021-12-15 | 2022-12-12 | Espaceur pour acquisition dentaire |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250120585A1 (fr) |
| EP (1) | EP4447772A1 (fr) |
| CN (1) | CN118510435A (fr) |
| FR (1) | FR3130123B1 (fr) |
| WO (1) | WO2023110743A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4248836A1 (fr) * | 2022-03-21 | 2023-09-27 | Hangzhou ChohoTech Co., Ltd. | Dispositif d'imagerie dentaire |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3149769A1 (fr) * | 2023-06-14 | 2024-12-20 | Dental Monitoring | Espaceur en matériau flexible pour acquisition dentaire |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3391810A1 (fr) | 2017-04-19 | 2018-10-24 | Dental Monitoring | Dispositif de prise de vues dentaire |
| EP3391811A1 (fr) * | 2017-04-19 | 2018-10-24 | Dental Monitoring | Dispositif de prise de vue dentaire |
| US20180303331A1 (en) | 2017-04-19 | 2018-10-25 | Dental Monitoring | Dental imaging device |
| FR3087644A1 (fr) | 2018-10-30 | 2020-05-01 | Dental Monitoring | Kit de prise de photos dentaires articule |
-
2021
- 2021-12-15 FR FR2113577A patent/FR3130123B1/fr active Active
-
2022
- 2022-12-12 WO PCT/EP2022/085370 patent/WO2023110743A1/fr not_active Ceased
- 2022-12-12 EP EP22835674.7A patent/EP4447772A1/fr active Pending
- 2022-12-12 CN CN202280087706.9A patent/CN118510435A/zh active Pending
- 2022-12-12 US US18/719,146 patent/US20250120585A1/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3391810A1 (fr) | 2017-04-19 | 2018-10-24 | Dental Monitoring | Dispositif de prise de vues dentaire |
| EP3391811A1 (fr) * | 2017-04-19 | 2018-10-24 | Dental Monitoring | Dispositif de prise de vue dentaire |
| US20180303331A1 (en) | 2017-04-19 | 2018-10-25 | Dental Monitoring | Dental imaging device |
| FR3087644A1 (fr) | 2018-10-30 | 2020-05-01 | Dental Monitoring | Kit de prise de photos dentaires articule |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4248836A1 (fr) * | 2022-03-21 | 2023-09-27 | Hangzhou ChohoTech Co., Ltd. | Dispositif d'imagerie dentaire |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3130123B1 (fr) | 2024-08-30 |
| US20250120585A1 (en) | 2025-04-17 |
| CN118510435A (zh) | 2024-08-16 |
| FR3130123A1 (fr) | 2023-06-16 |
| EP4447772A1 (fr) | 2024-10-23 |
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