Device for expanding a reference range of a sensing body for scanning and / or sensing a predetermined oral region, and sensing body, and method for scanning and / or sensing a predetermined oral region

Abstract

The invention relates to a device (10) for expanding a reference range of a sensing body (1) for scanning and / or sensing a predetermined oral region, the device having at least one fastening element (11) for fastening the device (10) to the sensing body (1), and at least one expansion element (12) for expanding the reference range of the sensing body (1), wherein the at least one expansion element (12) can be detected and / or sensed by means of a sensing device. The invention also relates to a sensing body (1) having the device (10), and to a method for scanning and / or sensing a predetermined oral region using at least one sensing body (1).

Description

[0001] Device for extending a reference area of ​​a scanning body for scanning and / or scanning a predetermined mouth area, as well as scanning body and method for scanning and / or scanning a predetermined mouth area

[0002] Description:

[0003] The invention relates to a device for extending a reference area of ​​a scanning body for scanning and / or scanning a predetermined mouth area, a scanning body with the device and a method for scanning and / or scanning a predetermined mouth area with at least one scanning body.

[0004] An intraoral scan consists of many small individual images that are combined to create a three-dimensional, virtual 3D model. To correctly align the images, the scanner requires clear but irregular contours that can be used as reference points.

[0005] However, appropriate reference points are not always available, as the distance between the reference points is often greater than the optical scanning range of the scanner, for example, due to an edentulous jaw, a narrow and degraded alveolar ridge, intermaxillary spaces with large height differences or height differences in general, or shortened rows of teeth. Furthermore, mobile soft tissue cannot be accurately captured and can distort the scan data due to blood and / or saliva.

[0006] Furthermore, scan bodies are known in the prior art that are attached to an implant and protrude from the patient's jaw in such a way that they can be used as reference points to determine the precise position of the implants in the bone. However, it can also happen that a scan body is positioned too far from a neighboring reference point for an error-free scan.

[0007] It is therefore an object of the present invention to overcome the aforementioned disadvantages and to provide a device for a scanning body which extends a reference area of ​​the scanning body and enables and / or optimizes scanning of a predetermined mouth area.

[0008] This problem is solved by the combination of features according to patent claim 1.

[0009] According to the invention, a device for expanding a reference area of ​​a scanning body for scanning and / or scanning a predetermined mouth area is proposed, comprising at least one fastening element for attaching the device to the scanning body and at least one extension element for expanding the reference area of ​​the scanning body. The at least one extension element can be detected and / or scanned by means of a scanning device.

[0010] The advantage of this is that the device and in particular the extension element of the device extend the reference area of ​​the scanning body in such a way that an area in the predetermined mouth area which has no reference points for scanning is bridged with the device and thus enables and / or optimizes error-free scanning in the predetermined mouth area without influencing the determination of the position of the implants in the bone.

[0011] In an advantageous embodiment, the invention provides that the at least one extension element has a plurality of sections along its longitudinal extent. At least one scanning surface of a respective section of the extension element has a differently shaped contour than at least one scanning surface of at least one section of the extension element adjacent to the section, and preferably also as at least one scanning surface of the one, two, three, four or five section(s) of the extension element adjoining the adjacent section. This means that at least one scanning surface of the extension element has an irregular contour. Due to the irregular and clear contour of at least the scanning surface of the extension element, a surface is provided which delivers particularly good scanning results or makes scanning possible in the first place.The irregular contour of the extension element describes in particular a contour of an edge region of the extension element, in particular of at least one scanning surface of the extension element, which represents the surface of the extension element that is to be scanned. Furthermore, an irregular contour within the meaning of the invention means that the contour does not have any regularly repeating sections, such as steps or a continuously straight extension. Accordingly, a respective section of the extension element has a differently designed contour than a section of the extension element adjacent to the section. Preferably, all sections of the extension element have different contours from one another. The contour of a section of the extension element can in particular be curved, wavy, jagged and / or straight in sections.A corresponding section of the extension element has in particular an extension of 0.01 cm to 0.5 cm, preferably 0.1 cm.

[0012] The scanning surface is the surface of the extension element that is to be scanned. However, it is also conceivable that the entire extension element has an irregular contour.

[0013] Furthermore, a dimension of the extension element, in particular a longitudinal extent and a transverse extent, is adaptable or adapted to a respective predetermined mouth region and / or a region without a reference point in the predetermined mouth region. It is particularly advantageous if the extension element is dimensioned such that contact can be established with an adjacent scanning body or tooth. Alternatively, however, it is also sufficient if the extension element is dimensioned such that a free end of the extension element, in an assembled state, is spaced from an adjacent scanning body or tooth, in particular by 0.01 cm to 0.5 cm, preferably by a maximum of 0.1 cm.

[0014] In a preferred embodiment of the invention, the extension element is mounted on the fastening element in a positionally adjustable manner by means of at least one joint. In this way, the device or the extension element of the device can be aligned with respect to the scanning body even in an assembled state, and alignment with respect to the scanning body and the predetermined mouth area is improved.

[0015] In one embodiment, it is further provided that the extension element has at least one extension joint, which is arranged between a first extension element section and a second extension element section. The first extension element section and the second extension element section are mounted in a positionally adjustable manner relative to one another via the at least one extension joint. This further improves the alignment of the extension element.

[0016] Preferably, the joint and / or the extension joint can be fixed by means of a screw or are designed in such a way that a fixation sufficient for the scanning process is provided due to friction between the joint components.

[0017] Furthermore, a design in which the fastening element is a clamp or a fastening ring for attaching to the scanning body is advantageous. It is advantageous in this case that the device can be fixed to the scanning body before or after the scanning body is inserted into the mouth area.

[0018] In a further advantageous variant, the invention provides that the fastening element can be received and / or fixed in a receptacle, in particular a screw channel, of the scanning body. Furthermore, the fastening element is in particular bolt-shaped, pin-shaped, tenon-shaped, or cylindrical pin-shaped. In one embodiment, the device according to the invention is designed such that the fastening element has a fastening receptacle for receiving, in particular fixing, a further extension element of a further, in particular adjacent, scanning body. In this way, one device can be fixed to another device, whereby a predetermined arrangement in the mouth region is ensured or further optimized during the scanning process.

[0019] It is further advantageous if a free end of the extension element has a connecting element for connecting to a further, in particular adjacently arranged, scanning body and / or a free end of a further extension element of the further, in particular adjacently arranged, scanning body. The connecting element is in particular a connecting joint and / or a locking element.

[0020] The device according to the invention is designed in one embodiment such that at least the extension element is made of metal or plastic, in particular PEEK.

[0021] According to the invention, a scanning body for scanning and / or scanning a predetermined mouth area is further proposed, comprising a reference body which forms a reference area for scanning and / or scanning the scanning body, a fastening device for fastening the scanning body to a laboratory analogue and / or implant arranged in the predetermined mouth area, and a device for expanding a reference area of ​​the scanning body according to the above disclosure.

[0022] In a preferred embodiment of the invention, the scanning body is a scan body and / or scan body and / or position sensor. In an advantageous embodiment, the scanning body and the device are at least partially formed in one piece and / or integrally. In particular, the scanning body and at least the fastening means of the device are formed in one piece and / or integrally.

[0023] In one embodiment of the invention, it is provided that, in particular on the reference body, at least one scanning body receptacle is provided for receiving, in particular fixing, a further extension element of a further, in particular adjacently arranged, scanning body.

[0024] Furthermore, according to the invention, a method for scanning and / or scanning a predetermined mouth region with at least one scanning body according to the above disclosure is proposed, in which the scanning body is fastened to a laboratory analogue and / or implant arranged in the predetermined mouth region by means of the fastening device, the extension element of the device is arranged and / or aligned, in particular manually, in the predetermined mouth region and at least the predetermined mouth region is scanned by means of a scanning device, in particular a scanning device, further in particular an intraoral scanner.

[0025] In one embodiment of the method, the device is secured to the scanning body by means of the fastening element before or after fastening. In practice, depending on the application, it may be advantageous to fasten the scanning body with the device mounted in the mouth area, or to mount the device to the scanning body only once the scanning body is secured in the mouth area. Accordingly, the method can be flexibly adapted to a specific application.

[0026] In an alternative embodiment of the method, the scanning body and the device are formed at least partially in one piece and / or integrally before fastening. It is advantageous that the scanning body and the device can be provided and fastened as a common component.

[0027] In a further advantageous variant, the invention provides that after fastening and / or arranging and / or aligning, at least one further scanning body, in particular with or without a further device, is fastened to a further laboratory analogue and / or implant arranged in the predetermined mouth region.

[0028] In one embodiment of the method, the extension element is fixed to another, particularly adjacent, scanning body during or after the arrangement and / or alignment. The extension element is fixed by means of the connecting element and / or by means of a plastic and / or adhesive and / or in the scanning body receptacle. This ensures that the alignment of the device remains constant during the scanning process.

[0029] Alternatively, it is conceivable for the extension element of the device and another extension element of another, particularly adjacent, device to be aligned with one another and, if appropriate, fixed to one another and / or in contact with one another. However, it is also conceivable for the extension elements to be spaced apart from one another, in particular by 0.01 cm to 0.5 cm, preferably by a maximum of 0.1 cm. In this embodiment, it is only important that the spacing is selected such that error-free scanning is still possible. This allows a greater distance to be covered without the need for an additional scanning body.

[0030] In a preferred embodiment of the method, at least prior to the fastening, a suitably dimensioned device and / or a suitably dimensioned scanning body with respect to the predetermined mouth region is selected from a plurality of suitably dimensioned devices and / or suitably dimensioned scanning bodies. Advantageously, the selected scanning body and / or device is adapted to a respective predetermined mouth region and / or a region in the predetermined mouth region without a reference point.

[0031] The features disclosed above can be combined as desired, as long as this is technically possible and they do not contradict each other.

[0032] Other advantageous developments of the invention are characterized in the subclaims or are presented in more detail below, together with the description of the preferred embodiment of the invention, with reference to the figures. They show:

[0033] Fig. 1 a is a schematic view of a device;

[0034] Fig. 1 b is a schematic view of another device;

[0035] Fig. 2 is a schematic view of a scanning body;

[0036] Fig. 3 is a schematic view of a system of scanning bodies;

[0037] Fig. 4 is a schematic view of another system of scanning bodies.

[0038] The figures are schematic examples. Identical reference numerals in the figures indicate identical functional and / or structural features.

[0039] Figure 1 shows a schematic view of a device 10 for expanding a reference area of ​​a scanning body 1 for scanning and / or scanning a predetermined mouth area. The device 10 comprises a fastening element 11 for attaching the device 10 to the scanning body 1 and an extension element 12 for expanding the reference area of ​​the scanning body 1. The at least one extension element 12 can be detected by a scanning device. Furthermore, at least one scanning surface 121 of the extension element 12 has an irregular and, in particular, clear contour.For this purpose, the at least one extension element 12 comprises a plurality of sections along its longitudinal extent, and at least one scanning surface 121 of a respective section of the extension element 12 has a differently shaped contour than at least one scanning surface 121 of a section of the extension element 12 adjacent to the section. In the exemplary embodiment illustrated in Figure 1, at least the scanning surfaces 121 of all sections of the extension element 13 have different contours from one another. A corresponding section of the extension element 13 has an extent of 0.01 cm to 0.5 cm, preferably 0.1 cm.

[0040] Furthermore, the extension element 12 is mounted on the fastening element 11 by means of a joint 13, allowing for variable positioning. The joint can be fixed by means of a screw. Furthermore, the fastening element 11 is a fastening ring for attachment to the scanning body 1.

[0041] Since the device 10 shown in the following figures essentially has the features of the device shown in Figure 1 a, we will only discuss further or different features below.

[0042] Figure 1 b shows a schematic view of another device 10.

[0043] The fastening element 11 is bolt-shaped and angled in such a way that it can be received and / or fixed in a receptacle, in particular a screw channel, of the scanning body 1. Figure 2 shows a schematic view of a scanning body 1 for scanning and / or scanning a predetermined oral region. The scanning body 1 has a reference body 3, which forms a reference region for scanning and / or scanning the scanning body 1, a fastening device 4 for attaching the scanning body 1 to a laboratory analogue and / or implant arranged in the predetermined oral region, and a device 10 for expanding a reference region of the scanning body 1.

[0044] In the embodiment shown in Figure 2, the scanning body 1 and the device 10 are at least partially formed in one piece and / or integrally. This is achieved by the scanning body 1 and the fastening means 11 of the device 10 being formed in one piece and / or integrally. Furthermore, a dimension of the extension element 12, in particular a longitudinal extent and a transverse extent, is adapted to the predetermined mouth region. The extension element 12 is dimensioned such that contact is established with an adjacent scanning body 100 and tooth. Furthermore, the extension element is fixed to the tooth and / or scanning body 100, in particular with an adhesive and / or light-curing plastic.

[0045] Figure 3 shows a schematic view of a system of scanning bodies 1. The system comprises two scanning bodies 1, each with a device 10, which are arranged adjacent to one another. Furthermore, a further scanning body 100 is arranged adjacent to one of the scanning bodies 1. The predetermined mouth area shown in Figure 3 is a reference point-free area, in particular a toothless area, into which the scanning bodies 1, 100 are inserted.

[0046] The scanning bodies 1, 100 are arranged in such a way, in particular in series, that the device 10 of the first scanning body 1 contacts the adjacent scanning body 1 and the device 10 of the second scanning body 1 contacts the adjacent further scanning body 100.

[0047] The device 10 of the first scanning body 1 has a connecting element 125 at a free end of the extension element 12 for connecting to the second, adjacent scanning body 1. The connecting element 125 is a locking element.

[0048] Furthermore, the fastening element 11 of the device 10 of the second scanning body 1 has a fastening receptacle for the fixing reception of the extension element 12, in particular the connecting element 125, further in particular the locking element, of the first scanning body 1.

[0049] Furthermore, a scanning body receptacle 5 for securing the extension element 12 of the second scanning body 1 is provided on the reference body 3 of the further scanning body 100, into which the corresponding extension element 12 is received. The respective dimension of the corresponding extension element 12, in particular a longitudinal extent and a transverse extent, is selected such that the corresponding extension element 12 contacts an adjacent scanning body 1, 100.

[0050] Figure 4 shows a schematic view of another system of scanning bodies 1. The system comprises two scanning bodies 1, each with a device 10, which are arranged adjacent to one another. Furthermore, the extension elements 12 of the scanning bodies are aligned with one another.

[0051] Accordingly, the corresponding extension element 12 is in contact with the adjacently arranged scanning body 1, in particular the extension element 12 of the scanning body. Furthermore, in the embodiment shown in Figure 4, the two extension elements 12 are fixed by means of the connecting element 125 and / or by means of a plastic and / or adhesive.

[0052] The invention is not limited to the preferred embodiments described above. Rather, a number of variants are conceivable that utilize the presented solution even in fundamentally different embodiments.

[0053] * * * * *

Claims

Patent claims 1. Device (10) for expanding a reference area of ​​a scanning body (1) for scanning and / or scanning a predetermined mouth area, comprising at least one fastening element (11) for fastening the device (10) to the scanning body (1) and at least one extension element (12) for expanding the reference area of ​​the scanning body (1), wherein the at least one extension element (12) can be detected and / or scanned by means of a scanning device.

2. Device (10) according to claim 1, wherein the at least one extension element (12) has a plurality of sections along its longitudinal extent, wherein at least one scanning surface (121) of a respective section of the extension element (12) has a differently shaped contour than at least one scanning surface (121) of a section of the extension element (12) adjacent to the section.

3. Device (10) according to claim 1 or 2, wherein the extension element (12) is mounted on the fastening element (11) in a positionally variable manner by means of at least one joint (13).

4. Device (10) according to one of claims 1 to 3, wherein the fastening element (11) is a clamp or a fastening ring for fitting onto the scanning body (1).

5. Device (10) according to one of the preceding claims, wherein the fastening element (11) is in a receptacle of the scanning body (1 ) can be picked up and / or fixed.

6. Scanning body (1 ) for scanning and / or scanning a predetermined th mouth area with a reference body (3) which forms a reference area for scanning the scanning body (1), a fastening device (4) for fastening the scanning body (1) to a laboratory analogue and / or implant arranged in the predetermined mouth area and a device (10) for extending the reference area of ​​the scanning body (1) according to one of the preceding claims.

7. Scanning body (1) according to claim 6, wherein the scanning body (1) and the device (10) are at least partially formed in one piece and / or integrally.

8. A method for scanning and / or scanning a predetermined mouth region with at least one scanning body (1) according to one of claims 6 or 7, comprising the steps of: a. fastening the scanning body (1) to a laboratory analogue and / or implant arranged in the predetermined mouth region by means of the fastening device (4); b. arranging and / or aligning, in particular manually, the extension element (12) of the device (10) in the predetermined mouth region; c. scanning at least the predetermined mouth region by means of a scanning device, in particular a scanning device, further in particular an intraoral scanner.

9. The method according to claim 8, wherein before or after fastening, the device (10) is fixed to the scanning body (1) by means of the fastening element (11), or wherein before fastening, the scanning body (1) and the device (10) are formed at least partially in one piece and / or integrally.

10. Method according to one of claims 8 or 9, wherein during or after the arranging and / or aligning, the extension element (12) is fixed to a further, in particular adjacent, scanning body (100).

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