Device for holding a storage medium

Description

Background of the invention 1. Field of the invention

[0001] The invention relates to a device for holding a storage medium in the oral cavity of a patient for at least one X-ray image, wherein the device has a holding section and a bite section. 2. Description of the state of the art

[0002] Such devices are components of imaging plate holding systems. The purpose of such holding systems is to align and hold an imaging plate in the patient's oral cavity with an X-ray device.

[0003] The typical design of such a holding system includes, in addition to the device for holding a storage plate with a plate holding section and bite block section, a guide rod that can be attached to the device and may also have a sighting ring on a side facing away from the holding device. The orientation of the X-ray device and the distance can be adjusted using the guide rod and, if applicable, the sighting ring.

[0004] To take an X-ray, the retainer is inserted into the patient's mouth. The patient bites down on the bite portion of the retainer to secure it, so that the retainer system remains in place and aligned due to the pressure created by the jaw when clenching.

[0005] Storage media such as imaging plates are used in dentistry in various sizes for different imaging areas and requirements, such as anterior tooth images, bitewing images, etc. The actual intraoral storage medium is enclosed in a protective cover during the X-ray exposure, which protects against light and / or possible contamination.

[0006] For example, the imaging plate is separated from its protective sleeve for reading the image data in a scanner. After the image information analysis is complete, the imaging plate is erased and then reinserted into a new hygienic protective sleeve; the previously used sleeve is discarded. Due to the repeated insertion and removal of the imaging plate into and from the sleeve or cover, a certain distance must be maintained between the imaging plate and the cover, or between the storage medium in general and its cover. This complicates the precise positioning of the imaging plate using existing holding systems.

[0007] WO 2018 / 022564 A1 describes, among other things, a holder for an imaging plate. The holder comprises a bite block and a support plate arranged at right angles to it. The support plate has spring arms that tighten a band attached to an imaging plate sleeve, thus attracting the imaging plate to the support plate.

[0008] The disadvantage of this retention system is that an additional retention strap is required on the protective sleeve of the image plate. This represents an additional manufacturing step and thus increases production costs. Furthermore, the retention strap can be stretched or overstretched and tear, necessitating the replacement of the sleeve and the image plate, which ultimately leads to additional work. Furthermore, when stressed, the strap pulls on the sides of the film forming the sleeve. The tensile force of the strap can damage the seam, which can lead to unwanted contamination.

[0009] DE 8610962 U1 describes a holding system comprising a bite plate and a back plate arranged at right angles to the bite plate. The back plate is bent in a circular arc on the top side and engages over a dental film inserted thereon. Opposite, on the bottom side, a spring-elastic clamping bar is formed, which exerts a clamping effect on the inserted dental film. When inserting a dental film, it must be bent relatively sharply. Furthermore, the clamping force of the clamping bar is fixed and cannot be canceled, for example, when inserting or removing the dental film.

[0010] US Patent No. 7,033,075 B2 describes a holding system in which two cheeks are attached to a bite block, between which a sensor can be clamped. The cheek facing away from the bite block can be adjusted relative to the other cheek using a screw, thus establishing and adjusting the contact pressure on the sensor. The disadvantage of this design is the complex mechanical design and the associated difficulty in disinfection. Furthermore, this design is only suitable for fixed sensors, unlike imaging plates, since the manually applied contact pressure could damage the imaging plate.

[0011] Another holding system for sensors is shown in US Pat. No. 6,540,399 B1. This device comprises a holding section and a bite-on section, a first part with a flat contact area for the sensor, and a second part with a clamping area for the sensor. The first part and the second part are movable relative to one another between an open position and a clamping position, and in the clamping position, a clamping force can be exerted on a sensor located between the contact area and the clamping area. The first part and the second part can be locked relative to one another in the clamping position via an interaction of the first and second locking areas.

[0012] WO 2010 / 138684 A1 also describes a holding system for sensors, not for image plates, which has two clamping jaws connected by a rubber band, between which a storage sensor is placed. This device is also not suitable for image plates, as image plates do not have the rigidity required for this type of holding. SUMMARY OF THE INVENTION

[0013] It is an object of the invention to provide a device for holding a storage medium in a patient's oral cavity that is easy to disinfect and enables secure and gentle holding of the storage medium, as well as a certain degree of comfort for the patient. In particular, it is desirable if a defined clamping force is applied to the storage medium during the X-ray imaging process, but this clamping force can be canceled or at least reduced for loading the holder with the storage medium. The unloading of the storage plate can occur in the closed state by overcoming the clamping force applied to the storage plate.

[0014] This object is achieved by a device according to the independent claim. Further embodiments of the invention are specified in the dependent claims.

[0015] The device according to the invention for holding a storage medium in the oral cavity of a patient for at least one X-ray image comprises a holding section and a bite section, a first part with a contact area having a flat contact surface for the storage medium, a first guide or joint area and a first locking area, and a second part with a clamping area for the storage plate, wherein the clamping area has a convex surface with respect to the storage plate, a second guide or joint area corresponding to the first guide or joint area, and a second locking area. The contact area and the clamping area interact and form the holding section. The first and second guide or joint areas interact such that the first part and the second part are movable relative to one another between an open position and a clamping position.In the clamped position, a clamping force can be exerted or impressed on a storage medium located between the contact area and the clamping area. The first part and the second part can be locked relative to each other in the clamped position through the interaction of the first and second locking areas.

[0016] The device according to the invention has several advantages due to its design. By means of the corresponding and interacting guide and / or joint areas, a relative movement can take place in a guided manner, so that the clamping force exerted on a storage medium is applied in the clamped position and is not applied in the open position or is applied only with a low clamping force. This enables the storage medium to be safely inserted into and removed from the holder section of the device and, if necessary, with one hand. The locking option, which fixes the first part and the second part in the clamped position relative to one another, allows a previously predetermined clamping force to be exerted on the storage medium. This minimizes errors when taking an X-ray image that could occur due to incorrect positioning or local damage to the storage medium in the clamping area.The two-part design allows the parts to be separated from each other and thus easily accessible for sterilization.

[0017] In one embodiment of the invention, the holding section can have ergonomic areas that enable the first part to be held securely between the index and middle fingers of a user, wherein the device can be brought into the clamping position by means of the user's thumb, which again ergonomically supports it.

[0018] In a further embodiment of the invention, the support area comprises a substantially flat support surface for the flat support of a storage medium. The support surface thus supports the kink- and bend-free positioning of the storage medium during the X-ray image.

[0019] The clamping force acting on the storage medium is preferably applied in a linear fashion due to the shape of the clamping area, which advantageously allows for easy removal of the storage medium from the holding device without completely disassembling it. After the X-ray image has been taken and the storage medium has been removed, the holding device can be temporarily stored in a container and disassembled for disinfection at a later time.

[0020] Advantageously, the support surface for the storage medium can be arranged at an angle of between 75° and 95°, preferably between 80° and 90°, to the bite section. A forward inclination of between 80° and 90° supports positioning the storage medium as close as possible to the area to be X-rayed. This can be, for example, a tooth area, a jaw area, or an implant area, but is not limited to this list. In a preferred embodiment, a locking mechanism, for example a locking pin engaging with a gear, can be provided, which allows the inclination of the support surface to be individually adjusted for the desired image.

[0021] In a further embodiment of the invention, it can be provided that the inclination of the holding section relative to the bite section is adjustable and lockable. This allows for individual adjustment of the angle of inclination between the holding section and the bite section, and the holding device can be better adapted to the conditions in the oral cavity.

[0022] Preferably, the inclination can be arranged and / or adjusted at an angle between 75° and 95°, preferably between 80° and 90°, to the bite section.

[0023] In a further preferred embodiment, corresponding recesses are arranged on the first part and the second part in the locking area such that a locking device can be inserted through the recesses, thus locking the first part and the second part together. For this purpose, the recesses are preferably of the same or very similar dimensions and are aligned with each other for the locking process. The locking device can, for example, be sections of a target rod. In this way, the holding device can be locked or secured in the clamping position.

[0024] By means of the holding device, a defined force can be exerted from the clamping area onto the contact area, thus generating a predetermined clamping force. The clamping force thus generated is the force that must be applied to pull out a storage medium held by the holding device without releasing the clamped position. In one embodiment, this clamping force can, for example, be in the range of 1.8 N to 4.2 N, preferably in a range between 2.2 N and 3.4 N, and particularly preferably in a range between 2.5 N and 3.0 N. A clamping force of this magnitude reliably prevents the storage medium from shifting or falling out.As described above, the storage medium (with a covering such as a protective film or a protective tube) can be pulled out of the holding device (for example, to read out the stored (image) data) after an X-ray image has been taken by overcoming the clamping force, without having to dismantle the holding device or release the clamping position.

[0025] A number of factors influence the actual clamping force: For example, moisture in the oral cavity can change the surface friction on the surfaces of the storage medium or the casing, the contact area and / or the clamping area during insertion and / or during the X-ray exposure; the force exerted by the holding device on the storage medium in the clamped position can vary due to manufacturing tolerances or can be altered by material breakage and / or material expansion during operation.

[0026] The level of clamping force during a measuring process can also be influenced by the speed of withdrawal and the resulting slippage and / or deformation slippage as well as by partial sliding.

[0027] In one embodiment, the locking device has an aiming device for aligning an X-ray device.

[0028] In a further embodiment, the guide area has a guide rail configured such that the contact area and the clamping area are displaceable relative to one another, thus allowing the clamping force to be exerted by the clamping area on the contact area, particularly when a storage medium is located therebetween. The guide rail can be designed, for example, as a groove-and-rail guide. Such a guide rail is technically simple to implement, allows for easy separation of the first and second parts for sterilization purposes, and also enables simple one-handed operation of the device.

[0029] As an alternative to the relative displaceability of the contact area and the clamping area, the joint area on the first or the second part can have an axis of rotation and a corresponding bearing on the other part.

[0030] Preferably, the rotation axis is arranged such that the contact area and the clamping area pivot relative to each other. This also enables the realization of a clamping and open position. In combination with the two parts being secured relative to each other in the locking area, a defined contact force of 1.8 N to 4.2 N, preferably in a range between 2.2 N and 3.4 N, and particularly preferably in a range between 2.5 N and 3.0 N, can be applied to the storage medium, as well as removal of the storage medium by overcoming the clamping force, as already described above.

[0031] Overall, it is advantageous if there is a distance between the contact area and the clamping area which is dimensioned such that in the open position a storage medium can be introduced between the contact area and the clamping area and in the clamping position a predetermined clamping force is exerted on the storage medium.

[0032] In one embodiment, the distance between the contact area and the clamping area can be varied depending on the storage medium to be inserted.

[0033] At the same time or alternatively, the applied clamping force can be varied, for example, within the aforementioned ranges. The realization of the necessary clamping force as well as the fixation of the device is ensured by the locking areas arranged according to the invention, into which the locking device can be inserted depending on the size of the storage medium.

[0034] For the purposes of this application, the term "storage medium" primarily encompasses a storage plate and the protective casing in which the storage plate is located for at least one X-ray image. Depending on the specific embodiment, however, the scope of protection also encompasses an application of the invention to a memory chip, a memory sensor, and a storage film, as well as, if appropriate, the respective protective casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In the following, exemplary embodiments of the invention are explained in more detail with reference to the drawings. In these drawings: Figure 1 is a perspective view of a first embodiment of a storage medium holder with base part and sliding part in an open position; Figure 2 is a side view of the embodiment of the Figure 1 ; Figure 3the side view of the Figure 2, in which the base part and sliding part are in a clamping position; Figures 4, 5 show a perspective and a side view of the base part of the storage medium holder of the Figures 1-3 ; Figures 6, 7 a perspective and a side view of the sliding part of the storage medium holder of the Figures 1-3 ; Figure 8 shows a perspective view of the first embodiment in a clamping position with an attached locking device; Figures 9 and 10 show side views of a second embodiment in the open position and the clamping position; and Figures 10 and 11 show a side view and a plan view of an embodiment of a storage medium holder in an open position. DESCRIPTION OF PREFERRED EMBODIMENTS First embodiment

[0036] The Figures 1 and 2illustrate a first embodiment of a storage medium holder 100 according to the invention. The storage medium holder 100 comprises a base part 102 and a sliding part 104. The base part 102 is shown separately in a perspective and a side view in the Figures 4, 5 , shown, the sliding part 104 in the Figures 6, 7 .

[0037] The storage media holder 100 has a holding section 106 and a bite-on section 108. The holding section 106 is formed on the base part 102 by a contact area 109 with a flat contact surface 110, and on the sliding part 104 by a clamping area 112. The flat contact surface 110 is designed to support a storage medium—usually located in a protective sheath—so that the storage medium can assume the intended shape—usually flat.

[0038] The clamping area 112 shows how well in Figure 2As can be seen, it has a clamping surface 114 that is convex with respect to the contact area 109. In the embodiment shown, the clamping surface 114 is generally cylindrical, with the longitudinal axis of the curved cylinder running substantially parallel to the contact surface 110. In this way, a contact force can be uniformly applied along the cylinder axis from the clamping surface 114 to the contact surface 110 or to a storage medium (not shown) located therebetween.

[0039] The bite section 108 extends substantially perpendicular to the contact surface 110 along an axis A. The angle formed by the contact surface 110 and the axis A can be, for example, between 75° and 95°, preferably between 80° and 90°.

[0040] At the point where the contact surface 110 of the holding section 106 transitions into the bite section 108, a concavely shaped transition section 115 is provided or formed on or out of the mold. This is designed such that a storage medium, in particular a storage plate, inserted into the area between the contact area 109 and the clamping area 112 does not collide hard with a surface with the front edge during the insertion process, but can slide off gently, thus avoiding, for example, damage to the edge of the storage medium—as could be the case with a comparatively sensitive storage plate or the protective sheath enclosing it.

[0041] The base part 102 has a first guide area 116 in the area of ​​the bite section 108, the sliding part has a corresponding second guide area 118 - see the Figures 4 and 6. In the embodiment shown, the guide areas 116, 118 interact similarly to a drawer guide: On the base part 102, in the first guide area 116, two strips 120 (only one strip 120 is visible in the figures, see e.g. Fig. 4 ) are mounted, which lie opposite one another and engage in grooves 122, 124 of the second guide region 118 of the sliding part 104. The strips 120 and the associated grooves 122, 124 are partially interrupted in the embodiment shown, on the one hand to create space for a locking device described below and, at the same time, to create guidance by the groove-strip guide over the entire range of movement of the base part 102 and the sliding part 104, if possible.

[0042] In the embodiment shown, the groove-strip guide runs parallel to the longitudinal axis A of the bite section 108. However, this is not necessary; there could also be an angular offset and / or one or more interruptions between the longitudinal axis A and the groove-strip guide (not shown in the figures).

[0043] By means of the described groove-and-strip guide, a displaceability between the base part 102 and the sliding part 104 is realized. The sliding part 104 can thus be displaced along a sliding axis—here: parallel to the longitudinal axis A—relative to the base part 102. This allows the storage medium holder 100 to be moved from an open position to a clamped position and vice versa.

[0044] The disclosure is in the Figures 1 and 2There, there is a gap between the contact surface 110 and the clamping surface 114, which allows for easy insertion of the storage medium. Depending on the type of storage medium—image plate, storage sensor, memory chip, storage film, etc.—the gap can be dimensioned to suit insertion.

[0045] In the clamping position, however, which is in the Figure 3As illustrated, the sliding part 104 is pushed maximally into the base part 102. Accordingly, the distance between the contact surface 110 and the clamping surface 114 is such that the inserted storage medium is subjected to a contact force or pressing force. A predetermined contact force is exerted on a storage medium located between the two surfaces in such a way that a clamping force is created, in particular in a range of 1.8 N to 4.2 N, preferably in a range between 2.2 N and 3.4 N, and particularly preferably in a range between 2.5 N and 3.0 N. This contact force causes the storage medium to contact the contact surface 110 on the one hand, and on the other hand, due to the resulting clamping force, is secured against slipping or falling out.

[0046] To achieve the desired contact force and the resulting clamping force, the holding device 100 is adapted or can be adapted to a specific thickness of the storage medium and the maximum contact force that can be applied thereto. Example thicknesses of the storage media are between 200 µm and 1000 µm, in particular between 300 µm and 900 µm, and for example, 340 ± 40 µm or 760 ± 80 µm for storage plates, and between 5 mm and 8 mm, in particular between 5.5 mm and 7.5 mm, and for example, 6.4 mm for storage sensors.

[0047] In order to secure or lock the base part 102 and the sliding part 104 against each other in the clamping position, at least one locking region 126, 128 is provided on the base part 102 and on the sliding part 104. The locking regions 126, 128 are each formed by a pair of openings 130, 132 / 134, 136, exemplified here as bores, which are aligned with each other in the intended clamping position. The openings 130-136 are cylindrical in the embodiment shown. However, other shapes are also possible, such as, for example, a square, triangular, trapezoidal, or elliptical cross-section, in a non-exhaustive list.

[0048] If the openings 130, 132 of the locking area 126 of the base part 102 are aligned with the holes 134, 136 of the locking area 128 of the sliding part 104, a locking device 152 (see Figure 8 ) can be inserted, for example, inserted. The locking device can be, for example, a targeting or guide rod 150, onto which a locking device 152 can be integrally formed. Since the locking regions 126, 128 are arranged in pairs, spatial fixation of the target rod 150 can be achieved using simple means. However, this would also be possible solely by a suitable shape of the openings as already mentioned (square, triangular, trapezoidal, elliptical, or similar) with only one aligned recess.

[0049] In an alternative embodiment, in addition to the locking possibility just described, locking of the base part 102 with the sliding part 104 via the locking areas 126, 128 can be achieved via locking lugs or the like. Such a locking device is shown in the Figures 4 and 5can be seen. In a lateral area - here in the exemplary embodiment below the strips 120 - a locking surface 140 is attached to the base part 102. This can, for example, have individual protruding ribs, depressions, or a wavy surface. The locking surface 140 corresponds to one or more locking cams 142 on the sliding part 104. The shape of the locking cam 142 interacts with the surface shape of the locking surface 140 to achieve the desired locking effect. In addition, the locking cam 142 can be designed to be resilient. This is Figure 6 The locking cam 142 is attached to the end of a spring arm 144 and can thus move toward the surface of the locking surface 140 when sliding over the surface of the locking surface 140 upon engaging in a recess, and can swing away from it when overcoming a raised area, overcoming the spring force of the spring arm 144.

[0050] Figure 8 illustrates the above-described embodiment of a storage medium holder 100 in a perspective view in the clamping position, ie the sliding part 104 is fully inserted into the base part 102 along the sliding axis A. In this position, a certain relative locking of the base part 102 with the sliding part 104 is already realized by means of the locking device locking lugs 142 / locking surface 140.

[0051] However, in order to achieve absolutely secure locking of the two parts 102, 104, which are in principle movable relative to one another, for handling in the patient's oral cavity, locking can be achieved, as already described above, by means of a locking device 152 attached to a target rod 150. While the arrangement of the locking device 152 on the target rod 150 or the combination of the locking device 152 and the target rod 150 is advantageous with regard to the entire device, in principle a locking device 152 can also be used without the target rod 150.

[0052] As already indicated above, the locking device comprises at least one locking pin which is geometrically shaped so that it can be brought into engagement with at least one of the openings 130, 132 / 134, 136. In the Figure 8In the embodiment shown, two cylindrical locking pins 154, 156 are provided, which can be inserted into the openings 130, 132 of the locking area 126 of the base part 102 and subsequently also into the bores 134, 136 of the locking area 128 of the sliding part 104. As long as these locking pins 154, 156 remain in the bores of the locking areas 126, 128, a relative movement of the parts 102, 104 to one another is not possible, so that even a storage medium located between the contact surface 110 and the clamping surface 114, such as a storage plate (usually with a protective covering), can be securely held or clamped.

[0053] Additionally, further openings 158, 159 are provided on the sliding part 104 (see Figure 3). For example, the opening 158 closer to the base part 102 can also be provided to receive a locking pin 154 to lock the base part 102 and the sliding part 104. The further opening 159, together with the opening 158, can allow the locking pins 154, 156 of the aiming rod 150 to be received without locking the base part 102 and the sliding part 104. Second embodiment

[0054] The Figures 9 and 10 illustrate in side views a second embodiment of a storage medium holder 200. The storage medium holder 200 has a base part 202 and a pivot part 204. The Figure 9 shows the storage medium holder 200 in an open position and the Figure 10 in a clamping position.

[0055] In analogy to the storage medium holder 100 as shown in the Figures 1-8As illustrated, the storage medium holder 200 of the Figures 9 and 10 a holding section 206 and a bite section 208. In this respect, the storage medium holder 200 is largely analogous to the storage medium holder 100 of Figures 1-8 constructed, so that a repeated description of identical or very similar features is omitted. Instead, in the figures and in the following description, reference numerals are used for identical or very similar features, to which 100 has been added.

[0056] In contrast to the storage medium holder 100 of the Figures 1-8 The storage media holder 200 is Figures 9 and 10 the relative movement for a change between the open position of the Figure 9 and the clamping position of the Figure 10via a pivoting or rotating movement, in which the pivoting part 204 rotates about an axis R. The axis can be designed as a rotating or fixed axis, as a separate (third component), or as a molded-on axis section on the base part 202 or the pivoting part 204. The base part 202 and pivoting part 204 can also be firmly connected to one another via the axis of rotation. Alternatively, the base part 202 and pivoting part 204 can be plugged into one another in a specific rotational position relative to one another—for example, in the open position—and connected to one another at a specific angle of rotation. Third embodiment

[0057] The Figures 11 and 121 illustrate a side view and a top view of a third embodiment of a storage medium holder 300. Like the first embodiment, the storage medium holder 300 also has a base part 302 and a sliding part 304. Due to the large number of identical or comparable features, a repeated description of these will be omitted to avoid repetition. Instead, identical or comparable features are provided with reference numerals, to which—compared to the first embodiment—200 has been added.

[0058] In brief, the storage medium holder 300 also has a holding section 306, which has a flat contact surface 310 on the base part 302 and a clamping area 312 with a convex clamping surface 314 on the sliding part 304. A bite-block section 308 is also provided on the storage medium holder 300. An ergonomically shaped first area 360 is provided on the bite-block section 308 on the base part 302. This corresponds to a second ergonomic area 362, which is integrally formed on the end face of the sliding part 304.

[0059] To accommodate or hold a storage medium in the holding section 306, an operator can grip the storage medium holder 300, for example, with their left hand such that their middle finger rests in the first ergonomic area 360, their index finger rests opposite it on the top side 364 of the storage medium holder 300, and their thumb rests on the second ergonomic area 362. The operator can then insert the storage medium into the holding section 306 with their right hand and, by pressing their thumb against the ergonomic area 362, apply the holding force necessary to adequately hold the storage medium (not shown in the figures) between the contact surface 310 and the clamping surface 314.

[0060] In another difference to the design of the Figures 1-8the contact surface 310 is not arranged centrally to the axis A, along which the bite section 308 extends and along which the sliding movement of the sliding part 304 relative to the base part 302 also takes place. The same applies to the clamping surface 314. Rather, the contact surface 310 and the clamping surface 314 are arranged laterally offset from this longitudinal axis A. This arrangement is advantageous for storage media which have connecting lines for, for example, a power supply or for transmitting data. In this case, the storage medium, in particular a storage sensor, can be introduced into the holding section 306 in such a way that these connecting lines can be inserted along the longitudinal axis A in the lower region of the bite section 308, for example into appropriately attached cable clips or cable clamps (not shown).The lateral arrangement of contact surface 310 and clamping surface 314 provides sufficient space for the storage sensor's own cable management.

[0061] In the same way as the first embodiment, both openings 330, 332 in the locking area 324 of the base part 302 and openings 334, 336 (in Figure 11 Only opening 336 is visible) is provided in the locking area of ​​the sliding part 304. A targeting or guide rod 150 can be inserted into these openings 330-336 in the same way as in the first embodiment in order to lock or lock the base part 302 and the sliding part 304 together in a clamping position.

[0062] Additionally or alternatively, this locking or arresting in the clamping position can also be realized by a locking mechanism between the base part 302 and the sliding part 304 as already described in the first embodiment (in the Figures 11 and 12This locking can be released again by an operator using suitable operating elements of the locking mechanism, so that the base part 302 and sliding part 304 can be separated, for example, for sterilization.

Claims

1. A device for holding an imaging plate in an oral cavity of a patient for at least one X-ray exposure, the device comprising a holding portion and a bite portion, a first part with an abutment region having a planar abutment surface for the imaging plate, a first guide or joint region and a first locking region, and a second part with a clamping region for the imaging plate, wherein the clamping region has a convex-shaped surface with respect to the imaging plate, a second guide or joint region corresponding to the first guide or joint region as well as a second locking region, wherein said abutment region and said clamping region cooperate to form the holding portion, said first guide and joint region and said second guide and joint region cooperate such that said first part and said second part are movable relative to each other between an open position and a clamping position, and, in the clamping position, a clamping force can be applied to an imaging plate located between the abutment region and the clamping region, wherein the first part and the second part are lockable relative to each other in the clamping position via a cooperation of the first and the second locking regions.

2. The device according to claim 1, wherein the abutment surface is configured for flat support of an imaging plate.

3. The device according to claim 1 or 2, wherein the abutment surface is arranged or / and adjustable at an angle between 75° and 95°, preferably between 80° and 90°, with respect to the bite portion.

4. The device according to any one of claims 1 to 3, wherein the holding portion is adjustable and lockable in its inclination with respect to the bite portion.

5. The device according to claim 4, wherein the inclination is arranged or / and adjustable at an angle between 75° and 95°, preferably between 80° and 90°, to the bite portion.

6. The device according to any one of claims 1 to 5, wherein recesses corresponding to one another are arranged on the first part and the second part in the locking region in such a way that a locking device can be inserted through the recesses and thus the first part and the second part are configured to be locked to one another.

7. The device according to any one of claims 1 to 6, wherein the guide region comprises a ledge guide configured to allow the abutment region and the clamping region to slide relative to each other from an open position to a closed position and thus the clamping force can be applied from the clamping region to the abutment region.

8. The device according to any one of claims 1 to 7 having wherein a joint region, wherein the joint region has an axis of rotation on the first or the second part and a bearing corresponding thereto on the other part.

9. The device according to claim 8, wherein the axis of rotation is arranged such that the abutment region and the clamping region are configured to perform a pivoting movement relative to each other.

10. The device according to any one of claims 1 to 9, wherein between the abutment region and the clamping region there is a distance dimensioned such that in the open position the imaging plate can be inserted between the abutment region and the clamping region and in the clamping position a predetermined clamping force is exerted on the imaging plate dimensioned such that during normal handling of the device the imaging plate is clamped.

11. The device according to any one of claims 1 to 10, wherein the abutment region has a concave-shaped transition section at or / and formed in its lower region.