Medical imaging device

Abstract

The utility model relates to medical imaging equipment has frame (20), slide (F) and track system (L), wherein, frame (20) can be movably supported with the aid of slide (F) and track system (L), so that can carry out the translational motion of frame (20) along track system (L), and wherein, slide (F) has the collision sensor, and the collision sensor includes the collision strip (K) following the profile of slide (F), and the collision strip extends at least along the first side surface of the axis (AT) of translational motion of slide (F) configuration.

Description

Technical Field

[0001] This utility model relates to a medical imaging device with a carriage having a collision strip that follows the contour of the carriage. Background Technology

[0002] When a gantry of a medical imaging device moves within the treatment space relative to an object, such as a patient supported on the medical imaging device, it is essential to ensure that the movement in the space is as collision-free as possible, or that the movement of the gantry is reliably interrupted if the object is in the path of movement. This is particularly important for movable gantry structures, such as sliding gantry structures that move on tracks or mobile gantry structures with wheeled chassis.

[0003] In this case, the orientation and movement of the sliding gantry are typically preset and fixed via tracks. However, several implementations exist that allow the gantry to shift and / or rotate to move in other directions. In this case, it is crucial to ensure the safe detection of collisions with objects within the gantry's movement space. Simultaneously, it is important to note implementations that circumvent avoidable costs in terms of equipment provision and maintenance, thus corresponding to cost-optimized solutions for the customer. In this case, multiple sensors mounted on the medical imaging equipment for collision detection can particularly hinder cost-optimized implementations, making maintenance designs more complex and consequently more expensive. Utility Model Content

[0004] The objective of this invention is to provide a portable medical imaging device that can perform collision detection inexpensively.

[0005] According to this invention, the task is solved by the subject matter of this invention. Advantageous embodiments with appropriate improvements are the subject of this description.

[0006] This utility model relates to a medical imaging device having a frame, a carriage, and a track system, wherein the frame can be movably supported, particularly rotatably supported, by means of the carriage and the track system, so that translational movement of the frame can be performed along the track system, and wherein the carriage has a collision sensor including a collision strip that follows the contour of the carriage, the collision strip extending at least along a first side of the carriage constructed perpendicular to the axis of translational movement.

[0007] Specifically, it can be specified that the track system is stationary and / or fixedly anchored relative to the bottom surface. The track system can form a linear guide for the carriage. The track system can particularly predefine the axis, i.e., the path, of translational motion. The track system can particularly include one or more track mating components.

[0008] For example, a medical imaging system may have an examination table for supporting the object being examined. The examination table may be stationary and / or fixedly anchored relative to the track system and / or relative to the bottom surface. The object being examined may be, for example, a person to be examined, especially a patient, and / or supported on the examination table, especially supported stationary relative to the examination table.

[0009] Translational movements can be performed relative to the track system, relative to the bottom surface, relative to the inspection table, and / or relative to the object being inspected. Translational movements can be, in particular, substantially horizontal. Translational movements can, for example, be performed on straight and / or curved paths. The bottom surface can also be substantially horizontal. The bottom surface can, for example, be the bottom, especially the bottom of the inspection space, and / or have a base plate and / or a base.

[0010] In particular, medical imaging equipment may include computed tomography (CT) equipment. Accordingly, the gantry is configured as a CT gantry. For example, a CT gantry may have a support frame and a rotor rotatably supported relative to the support frame, wherein a radiation source and a radiation detector are arranged on the rotor. The radiation source and radiation detector can interact to record a projection dataset of the examined object. For example, the CT gantry may have an opening. In particular, the track system, the examination table, and the opening can be arranged relative to each other such that, through translational movement of the CT gantry, the examination table is guided into the opening, particularly together with the examined object supported on the examination table.

[0011] However, medical imaging equipment can also be selected from the imaging modality group, which, in addition to computed tomography equipment, includes X-ray equipment, C-arm X-ray equipment, molecular imaging equipment (MI equipment), single-photon emission computed tomography (SPECT equipment), positron emission tomography (PET equipment), magnetic resonance imaging (MR equipment), and combinations thereof, such as PET-CT equipment and PET-MR equipment. Furthermore, the medical imaging equipment can have, for example, a combination of imaging modalities and radiation modalities selected from the imaging modality group. Here, the radiation modality can, for example, include a radiation unit for therapeutic radiation.

[0012] Specifically, it can be specified that the medical imaging equipment has a transfer actuator. The transfer actuator can be designed, in particular, to drive the translational movement of the carriage.

[0013] The implementation specifies that the track system has a set of tracks, wherein the carriage has a set of wheels, which are arranged to roll on the tracks for translational motion. For each wheel in the set, the carriage may, for example, have a wheel direct drive that interacts with that wheel. For example, the wheel direct drive may be an electric motor, particularly a hub motor for electric vehicle wheels. In particular, it may be specified that the wheel direct drives of multiple wheels in the set together form a transfer drive.

[0014] Specifically, it can be specified that the set of tracks and the set of wheels form a set of wheel-track rolling contacts. For example, it can be specified that each track in the set of tracks is a circular track, and / or each wheel in the set of wheels is a concave roller and / or constructed for rolling on the circular track. The tracks and / or wheels can, for example, be made of steel. The circular track can advantageously be integrated into the bottom without a cover and without a drive element, and here it is possible to achieve rolling over using the patient bed and instrument table.

[0015] The driving force for translational motion can be transmitted from the carriage to the track system, for example, based on the force-locking, especially friction-locking, between multiple wheels of the set of wheels and multiple tracks of the set of tracks.

[0016] The collision strip can be positioned at least at the front of the carriage, i.e., forward of the carriage along the axis of translational movement. The collision strip can extend perpendicularly to the bottom surface over the entire height of the carriage, or only partially above the bottom surface. Advantageously, the collision strip is constructed not only along the first side but also at least on the other sides of the carriage, thus allowing collision detection on the other sides as well. The strip is contour-following, thereby ensuring advantageously good coverage of collision identification by means of the collision strip along the contour of the carriage. Furthermore, it is advantageously ensured that only those objects that actually cause a collision with the carriage collide with the collision strip. Additionally, it can be simply mounted on the carriage.

[0017] Specifically, it can be specified that the collision strip is arranged near the bottom of the carriage. That is, the distance between the bottom surface below the medical imaging device and the lower side facing the collision strip can be less than 2 cm, and preferably less than 10 mm, when the carriage is supported on the track system. Therefore, it can be ensured that objects near the bottom in the movement path of the medical imaging device can be advantageously detected by means of the collision strip. In particular, the collision strip can be designed such that, when the carriage is supported on the track system, the distance between the lower side of the collision strip and the bottom surface below the carriage corresponds to less than 8 mm. Therefore, the collision strip on the carriage can also advantageously ensure, for example, a maximum distance to avoid the risk of crushing. When the collision strip extends on multiple sides of the carriage, the safe delivery of the medical imaging device can also be ensured by means of the collision strip on other sides of the carriage.

[0018] In particular, the collision sensor, in addition to the collision strip that follows the contour of the carriage, may also have a first number of collision measurement probes that detect the offset of the collision strip, especially the offset of the collision strip relative to the carriage. The first number of collision measurement probes includes either a single collision measurement probe or multiple collision measurement probes distributed on the collision strip or the carriage. Here, the offset of the collision strip can include a change in the position of the collision strip relative to the carriage, particularly, for example, parallel to or perpendicular to a first side of the carriage. This can include a point-by-point or partial change in the collision strip, i.e., a change only in a demarcated portion of the collision strip, or a change in its position as a whole, i.e., an offset relative to the carriage.

[0019] Advantageously, the collision strip can be constructed as a rigid element such that upon contact with the collision strip, i.e., when an object collides with the collision strip, the collision strip is offset relative to the carriage over most of its extension, and especially over its entirety. Therefore, advantageously, several collision measurement probes can be combined with the collision strip, wherein, however, the collision can still be detected over a large area of ​​the collision strip.

[0020] Collision strips may include, for example, metal, plastic, such as rigid PVC, or composite materials, such as laminated materials or fiber-plastic composites.

[0021] Specifically, it can be specified that the collision strip is mechanically connected to the carriage via a second number of supports, i.e., one or more supports. The second number of supports can be flexibly constructed, for example, as elastic supports. Therefore, the offset of the collision strip can also be achieved via the supports relative to the carriage. However, it is also conceivable to provide rigid supports, wherein the offset of the collision strip can be detected between corresponding pairs of supports using associated collision measurement probes. It can also be specified that the measurement of the offset of the collision strip due to a collision is achieved using the supports themselves, for example, using a pressure-sensitive piezoelectric sensor disposed within the supports.

[0022] A first set of collision measurement probes can be configured to detect the displacement of the collision strip in a tactile or non-contact manner, for example, including pressure-sensitive piezoelectric sensors or laser-based optical distance sensors. Other configurations are also possible. In particular, the collision measurement probes can be configured to detect displacement of the collision strip perpendicular to the first side and displacement of the collision strip parallel to the first side. The latter can be particularly advantageous when the collision strip is positioned on the first side, i.e., on at least one other side of the carriage connected to the first side. In this case, the collision measurement probes arranged on the first side of the carriage can also detect collisions occurring on other sides of the carriage, resulting in displacement of the collision strip parallel to the first side.

[0023] In particular, the collision sensor can be configured to cause a change in the state of the medical imaging device, especially the cessation of motion and / or image recording sequences, upon detecting a collision with a collision bar. Advantageously, damage to the colliding object and / or the medical imaging device and / or unnecessary radiation exposure can be avoided.

[0024] In particular, the collision sensor can be configured to trigger visual or auditory warning signals, in addition to the aforementioned state changes, upon detecting a collision with the collision bar. Advantageously, medical personnel can be promptly informed of such events and respond accordingly.

[0025] Advantageously, the contour-following collision strip according to this invention allows for the detection of collisions on the carriage in a particularly simple and advantageous manner, especially collisions with objects present in the carriage area within the movement path of the medical imaging equipment. Advantageously, the risk of injury to patients or medical personnel can be avoided. Advantageously, damage to the medical imaging equipment or the object being collided with can be avoided.

[0026] According to the implementation of the medical imaging device, the carriage has a set of wheels, as previously described, wherein the collision bar has an opening in each wheel of a row of the set of wheels along the axis of translational movement. The opening may extend at least on the extension of the corresponding wheel, parallel to a first side of the carriage.

[0027] In particular, collision strips can make access to the area of ​​the wheel or the corresponding wheel track contact point difficult. Advantageously, openings in the collision strip allow access to the area of ​​the corresponding wheel and / or wheel track contact point and / or possibly other components present on the carriage, arranged in the area of ​​the wheel or the corresponding wheel track contact point. Such components may include, for example, scraper or brush units arranged in a row of corresponding wheels along translational movement. They can be used to clean or reduce contamination in the area of ​​the wheel track contact point. Thus, maintenance, cleaning, and / or replacement can be advantageously and better facilitated. Especially when the collision strip extends on more than one side, access to the wheel or surrounding area can be further difficult. Advantageously, openings here allow for better access.

[0028] In an advantageous configuration, the collision bar can, for example, have a continuous frame extending over its entire length. The opening can extend over a portion of the collision bar's height. In this case, it is advantageous to omit the supports between the collision bar and the carriage on both sides of the respective opening. However, it can also be specified that the opening occupies the entire height of the collision bar. An uninterrupted collision bar can be implemented in combination with a cover, as described later. However, in the latter case, the supports between the collision bar and the carriage are provided on both sides of the respective opening.

[0029] In particular, it can be specified that each of the aforementioned openings is provided with a cover. The cover can, in particular, be made of the same material as the impact strip. However, other materials can also be used. Advantageously, partial interruptions of the impact strip or reductions in the impact detection area due to the openings can be avoided. In particular, the cover can be form-fitted onto the impact strip. This can advantageously facilitate the cleaning of medical imaging equipment, especially the impact strip.

[0030] The cover can be accommodated on the impact bar by means of connecting devices that require tools, such as screws, for removal and placement of the cover in front of the opening. However, preferably, the cover has connecting devices that interact with mating connecting devices on the impact bar, allowing for repeated opening and closing of the opening, i.e., repeated removal and placement of the cover in front of the opening, without the use of tools. Advantageously, in this case, no special tools are required, and simplified operation is possible, for example, even for untrained personnel.

[0031] According to a design variation, the cover exists foldably on the collision strip via a hinge. In this case, the connecting device and the mating connecting device can respectively represent the interacting hinge portions present on the cover or the collision strip. This advantageously ensures simple operation and implementation.

[0032] According to another structural variation, the cover can be accommodated on the mortise bar using a mortise and tenon mechanism. For example, the cover can only be moved into the receiving portion on the mortise bar. This also advantageously ensures simple operation and implementation.

[0033] In addition, it provides the alternative possibility of accommodating a cover on the collision strip, which avoids the need to use tools to repeatedly open and close the opening.

[0034] Specifically, it can be specified that, during the operation of the medical imaging device, the cover can be rigidly connected to and / or secured to the impact strip to prevent accidental opening, for example, in the event of a collision in the cover area. This can be ensured by the construction of the connecting device and the mating connecting device themselves, or by additional securing devices, such as locks or securing hooks. The latter is also advantageously designed to allow for repeated opening or closing without the use of tools.

[0035] In a modified configuration, the collision strip, particularly following the contour, extends along at least a portion of one or two other sides of the carriage that connect to the first side, said other sides extending parallel to the axis of translational movement. Advantageously, the collision strip can also be used to detect collisions on other sides of the medical imaging device. Here, the collision strip can be constructed, for example, in an L-shape or U-shape, and exists on the carriage following the contour. Advantageously, the contour-following construction along multiple sides allows for uninterrupted collision detection possibilities along the entire extension of the collision strip, i.e., for example at corners.

[0036] The aforementioned structural variant can be configured such that the first number of collision measurement probes associated with the collision bar (which detect the displacement of the collision bar) exist only on the sides of the carriage, particularly only on the first side of the carriage, or only on one of the other sides connected to the first side. Therefore, in this structural variant, collisions with the collision bar on the sides of the carriage that do not correspond to the side having the first number of collision measurement probes are also detected. That is, for example, collisions with the collision bar on the sides of the carriage extending parallel to the axis of translational movement are also detected by one or more collision measurement probes located on the first side, or collisions on the first side are detected by one or more collision measurement probes located on one of the other sides connected to the first side. Advantageously, this corresponds to a cost-effective implementation, since only one or more collision measurement probes are needed on only one side of the carriage, rather than on all sides.

[0037] Specifically, the collision strip can be rigidly designed such that a collision strip offset caused by a collision on one side of the carriage also results in a collision strip offset on the other side of the carriage. For example, an offset of the collision strip perpendicular to the side connected to the first side can also result in an offset of the collision strip parallel to the first side of the carriage, or vice versa. A first number of collision measurement probes can be specifically configured to detect offsets of the collision strip perpendicular to the side on which the collision measurement probes are arranged, and to detect such offsets of the collision strip parallel to that side.

[0038] Furthermore, it can be specified that the collision bar includes a second number of supports mechanically connecting the collision bar to the carriage, wherein at least one of the first number of collision measurement probes is integrated into one of the second number of supports. This can include the existence of only one support that also includes a collision measurement probe. This can include the existence of multiple supports, but only one of the multiple supports also includes a collision measurement probe. This can also include the first plurality of collision measurement probes being integrated into a second plurality of supports different from the first plurality of supports. This can also include the integration of a collision measurement probe into each support. This can correspond to an advantageously simple implementation. However, further construction variations are also possible, wherein the collision measurement probes and supports exist separately from each other on the collision bar or carriage.

[0039] According to an improved version of the medical imaging device, the device also includes a second collision sensor comprising a second collision strip that follows the contour of the carriage, extending at least on a second side of the carriage opposite the first side. The second collision sensor can, in particular, be constructed similarly to the first collision sensor. Advantageously, it can also detect collisions occurring on the opposite side.

[0040] The second collision strip may also extend on at least a portion of one or both sides of the carriage that are connected to the first side and constructed parallel to the axis of translational motion.

[0041] According to another configuration of the medical imaging equipment, the medical imaging equipment also includes a lifting device, in which the carriage and frame can be lifted from the support on the track system by means of the lifting device and can rotate about a vertical axis of rotation.

[0042] For example, the track system includes a first track pair arranged parallel to each other and a second track pair arranged parallel to each other, wherein the carriage and frame can be moved from a support on the first track pair to a support on the second track pair by means of a lifting device. For example, the axis of translational movement is along one track pair when supported on the first track pair and along the second track pair when supported on the second track pair. For example, the track system includes only one track pair, wherein the medical imaging equipment can rotate 180 degrees and is again supported on the same track pair. The latter can be combined with the use of the medical imaging equipment, in combination with two examination tables arranged along the track pair, wherein, however, the front and rear sides of the medical imaging equipment must be considered.

[0043] In particular, the collision strip, extending on more than one first side, and especially following the contour on at least one side connected to the first side, can advantageously detect collisions without being achieved along the axis of translational motion. This can be especially important when the degrees of freedom of motion of the medical imaging device exceed the degree of motion along the axis.

[0044] Within the scope of this invention, features described for different embodiments of this invention can be combined to form further embodiments of this invention. The use of the indefinite articles "a" or "an" does not preclude the possibility that a related feature may be present multiple times. Attached Figure Description

[0045] The present invention will then be described with reference to the accompanying drawings and embodiments. The illustrations in the drawings are schematic, highly simplified, and not necessarily to scale.

[0046] Figure 1 A schematic top view illustrates the carriage of a medical imaging device with a collision bar that follows the contours.

[0047] Figure 2 The plan view schematically illustrates the carriage of a medical imaging device with a contour-following collision strip according to another construction variation.

[0048] Figure 3 and Figure 4This schematically illustrates a variant of the construction of the cover for the opening in the collision strip.

[0049] Figure 5 A side view schematically illustrates a fragment of a medical imaging device with a collision bar that follows a contour, according to a construction variation.

[0050] Figure 6 The side view schematically illustrates a fragment of a medical imaging device with a contour-following collision bar according to an alternative construction variation.

[0051] Figure 7 A top view schematically illustrates a medical imaging device rotatable along a rotation axis with a collision bar that follows the contour, according to a construction variant. Detailed Implementation

[0052] Figure 1 The carriage F of a medical imaging device 1 with a collision bar K that follows the contour is schematically shown in a top view.

[0053] The medical imaging device 1 according to the present invention has a frame 20 (not shown here for clarity), a carriage F and a track system L, wherein the frame 20 can be movably supported by means of the carriage F and the track system L, thereby enabling translational movement of the frame 20 along the track system L, and wherein the carriage F has a collision sensor including a collision strip K that follows the contour of the carriage F, the collision strip extending at least along a first side of the carriage F constructed perpendicular to the axis AT of the translational movement.

[0054] For example, the medical imaging apparatus 1 can be constructed as a computed tomography apparatus including a computed tomography gantry 20, comprising a support frame and a rotor rotatable relative to the support frame, as well as a radiation source and a radiation detector. The medical imaging apparatus 1 may also include an examination table (not shown) arranged such that, through translational movement of the computed tomography gantry 20, the examination table is guided into an opening in the gantry 20, particularly together with the object to be examined supported on the examination table.

[0055] The track system L is fixedly anchored below the medical imaging device 1 relative to the bottom surface U, such as the bottom of the examination space, and forms a linear guide for the carriage F. In the example shown here, the track system L specifically includes track mating members arranged parallel to each other. Translational movements are performed relative to the track system L or the bottom surface U, and are particularly substantially horizontal.

[0056] The carriage F also has a set of wheels R, which are rolled on a track system L, i.e., the set of tracks, for translational motion. For example, each wheel R in the set has a wheel direct drive, such as an electric motor, that interacts with that wheel R. In particular, it can be specified that the wheel direct drives of multiple wheels R in the set together form a transfer drive for driving the translational motion of the carriage F. The set of wheels, together with the set of tracks, forms a set of wheel-track rolling contacts RL (see also...). Figure 5 and Figure 6 The driving force for translational motion can be transmitted from the carriage F to the track system L based on the force lock between the wheel R and the track L.

[0057] In particular, the variant shown here illustrates two similarly constructed collision sensors having a first collision strip and a second collision strip K, wherein the first collision strip K, which follows the contour of the carriage F, extends along a first side of the carriage F, and the second collision strip K, which also follows the contour of the carriage F, extends on a second side of the carriage F opposite to the first side.

[0058] The collision strips K are positioned forward of the carriage F in both directions of translational movement along the axis AT. Furthermore, the first and second collision strips K also extend on at least a portion of one or two additional sides of the carriage F connected to the first side, said additional sides being constructed parallel to the axis / direction of translational movement. In particular, in an exemplary variant, the first and second collision strips K are each constructed as U-shapes and also extend on portions of two additional sides of the carriage F connected to the first side. In other construction variants where the collision strips K advantageously extend on more than one side, the corresponding collision strips K can also be constructed in other ways. For example, the collision strips K can also be constructed as L-shapes and extend only on two sides of the carriage F. For the L-shaped embodiment, the first collision strip K can, for example, extend along the first side and only one additional side, for example, along the entire additional side. The second collision strip K can be designed accordingly. However, the U-shaped design of the corresponding collision strip K can also facilitate uninterrupted collision detection at the corners of the carriage F. This can be particularly advantageous, for example, in situations such as… Figure 7 The rotatable implementation of the medical imaging device illustrated schematically is advantageous in that the movement space of the medical imaging device goes beyond mere translational motion.

[0059] In addition to the collision strip K, the collision sensor includes at least a first number (only one in this case) of collision measurement probes KS, which are configured to detect the offset of the collision strip K. However, multiple collision measurement probes may also be present, where a smaller number may be advantageously cheaper. The first number of collision measurement probes KS are particularly configured to detect the offset of the corresponding collision strip K in a tactile or non-contact manner, for example, including pressure-sensitive piezoelectric sensors or laser-based optical distance sensors.

[0060] Furthermore, the corresponding collision strip K includes a second number of supports H, which mechanically connect the collision strip K to the carriage F. In the example shown here, the collision measurement probe KS is integrated into one of the supports H of the second number of supports H. Multiple configurations can also be provided in which the collision measurement probe KS and the supports H exist separately from each other on the collision strip K or the carriage F. Furthermore, the second number of supports here differs from the first number of collision measurement probes KS. However, multiple configurations can also be provided in which the collision measurement probe KS is also present in each support.

[0061] In the example shown here, according to an advantageously inexpensive variant, the first number of collision measurement probes KS of the corresponding collision sensor are present only on one side of the carriage F, in particular on the first side, or for the second collision strip, on the side of the carriage F opposite to the first side.

[0062] Furthermore, the collision bar K is advantageously rigidly constructed such that upon contact with the collision bar K, i.e., when an object collides with the collision bar K, the collision bar, in particular, is offset relative to the carriage F as a whole. This includes, for example, a collision on the first side of the carriage F causing the collision bar K to be offset as a whole parallel to the axis of translational movement, i.e., perpendicular to the extension of the first side, and a collision on the side of the carriage F connected to the first side causing the collision bar K to be offset as a whole perpendicular to the axis of translational movement, i.e., parallel to the extension of the first side.

[0063] In addition, the collision measurement probe KS is constructed to detect the offset of the collision strip K perpendicular to the first side and the offset of the collision strip K parallel to the first side.

[0064] Advantageously, this implementation allows for the detection of collisions across the entire collision strip K and on the other side, even though the collision measurement probes KS are arranged on only one side of the carriage F and the number of collision measurement probes KS is small.

[0065] In the example shown here, the collision measurement probe KS is arranged on the first side. Similarly, the collision measurement probe can also be arranged on the side of the carriage F that is connected to the first side and extends parallel to the translational motion.

[0066] Collision strips may include, for example, metal, plastic, such as rigid PVC, or composite materials, such as laminated materials or fiber-plastic composites.

[0067] The collision sensor can be specifically configured to cause a change in the state of the medical imaging device 1, such as cessation of motion and / or image recording sequence, and / or triggering of visual or auditory warning signals, upon detecting a collision with the collision bar K. Therefore, it is advantageous to avoid damage to the colliding object and / or the medical imaging device 1 and / or unnecessary radiation exposure, and medical personnel can be promptly informed of such events and respond accordingly.

[0068] Figure 2 A top view schematically illustrates the carriage F of a medical imaging device 1 with a contour-following collision strip K according to another construction variation. In the variation shown here, one or more collision strips K are substantially aligned with the contour of the device. Figure 1 The middle is constructed similarly, however, each wheel R in a row has an opening S along the axis of translational motion AT.

[0069] The opening S can extend parallel to the first side of the carriage F at least on the extension of the corresponding wheel R, and can provide access to the area of ​​the corresponding wheel R and / or the wheel rail contact RL and / or possibly other components present on the carriage F, which are arranged in the area of ​​the wheel or the corresponding wheel rail contact RL. Therefore, maintenance can be advantageously facilitated.

[0070] In an advantageous configuration, the collision bar K can, for example, have a continuous frame extending over the entire extension of the collision bar K, wherein the opening S extends only over a portion of the height of the collision bar K (see, for example, [reference needed]). Figure 5 In this case, it is advantageous to omit the support H between the collision bar K and the carriage F, which exists on both sides of the corresponding opening, if necessary. However, it can also be specified that the opening S occupies the entire height of the collision bar (see, for example, [reference needed]). Figure 6 However, in the last case, the bracket H between the collision strip K and the carriage F is provided on both sides of the corresponding opening S (see the bracket H in dashed lines), wherein the bracket can also be arranged on one of the other sides of the carriage F. As described below, the uninterrupted collision strip K can be implemented in combination with the cover A.

[0071] According to an advantageous variation, each opening S of the collision strip K is provided with a cover A that preferably fits in a locking shape. The cover A may, in particular, be made of the same material as the collision strip K. Specifically, the cover A may advantageously have a connecting device that interacts with a mating connecting device on the collision strip K, allowing the opening S to be repeatedly opened and closed without the use of tools.

[0072] Examples of possible implementations of the cover are in Figure 3 and Figure 4 This is illustrated schematically. Therefore, as... Figure 3 As shown, cover A can be accommodated on the collision strip K by means of a mortise and tenon mechanism FN. In this case, the connecting device or mating connecting device may respectively include tenons or grooves that interlock with each other. Figure 4 As shown, the cover A can also exist foldably on the collision strip K via the hinge SR. In this case, the connecting device and the mating connecting device can respectively represent the interacting hinge portions present on the cover or the collision strip.

[0073] Figure 5 and 6 A fragment of a medical imaging device 1, according to two construction variations, is shown in a side view. The collision bar K has an opening S and a cover A along an axis of translational movement AT in each of a row of wheels R. The frame 20 of the medical imaging device 1 is also shown, movably supported by the carriage F and by wheel track contacts RL, such that translational movement is performed along the track system L and along the axis AT. According to the previously shown variation, the collision bar K may also extend contourally along one or two of the plurality of sides of the carriage F connected to the first side.

[0074] Here, in Figure 5 In the illustrated variant, the collision bar K represents a continuous frame extending over its entire length according to the exemplary variant. Other embodiments may also be provided. Conversely, in Figure 6 In the variant shown, the opening S extends over the entire height of the collision strip K. The uninterrupted collision strip K can still be ensured in combination with the corresponding cover A.

[0075] This view also shows that the collision strip K is advantageously positioned near the bottom of the carriage F. This also applies to... Figure 1 and Figure 2 The implementation scheme is as follows. That is, the distance between the lower side of the collision strip K facing below the medical imaging device 1 and the bottom surface U can be less than 2 cm, and advantageously less than 10 mm, when the carriage F is supported on the track system L. In particular, the collision strip K can be designed such that the distance between the lower side of the collision strip K and the bottom surface U below the carriage corresponds to less than 8 mm when the carriage F is supported on the track system L, in order to advantageously ensure a maximum distance, for example, considering the risk of crushing.

[0076] Figure 7A medical imaging device 1 is shown, comprising a lifting device HV, wherein a carriage F and a gantry 20 can be raised from a support on a track system L by means of the lifting device HV and can rotate about a vertical axis of rotation RT. For overview purposes, only the carriage F is shown here, and the gantry 20 is not shown. Embodiments of the collision bar K can substantially correspond to the examples in the previously described figures and may include an opening S, or may be constructed without an opening S.

[0077] Here, the track system L is particularly exemplary, having a first track pair arranged parallel to each other and a second track pair arranged parallel to each other, wherein the carriage F and the frame 20 can be moved from a support on the first track pair to a support on the second track pair by means of a lifting device HV. The respective axes of translational movement follow the respective track pair, on which the carriage F is supported. In particular, collisions can also be advantageously detected by means of a collision bar K, which is not along the respective axes of translational movement and is also achieved particularly during rotation.

Claims

1. A medical imaging device (1), characterized in that, The device has a frame (20), a carriage (F), and a track system (L), wherein the frame (20) is movably supported by means of the carriage (F) and the track system (L) such that translational movement of the frame (20) can be performed along the track system (L), and wherein the carriage (F) has a collision sensor comprising a collision strip (K) that follows the contour of the carriage (F) and extends at least along a first side of the carriage (F) constructed perpendicular to the axis (AT) of the translational movement.

2. The medical imaging device according to claim 1, characterized in that, The carriage (F) has a set of wheels (R), and the collision bar (K) has an opening (S) in each wheel (R) in a row along the axis of translational movement (AT).

3. The medical imaging device according to claim 2, characterized in that, Each opening (S) is equipped with a cover (A).

4. The medical imaging device according to claim 3, characterized in that, The cover (A) has a connecting device that interacts with a mating connecting device on the collision strip (K) to allow the opening (S) to be repeatedly opened and closed without the use of tools.

5. The medical imaging device according to claim 3 or 4, characterized in that, The cover (A) exists foldably on the collision strip (K) via a hinge (SR).

6. The medical imaging device according to claim 3 or 4, characterized in that, The cover (A) can be accommodated on the collision strip (K) by means of a mortise and tenon mechanism (FN).

7. The medical imaging device (1) according to any one of claims 1 to 4, characterized in that, The collision strip (K) extends over at least a portion of one or two other sides of the carriage (F) that are connected to the first side, the other sides being constructed parallel to the axis (AT) of the translational motion.

8. The medical imaging device (1) according to claim 7, characterized in that, The collision sensor includes at least a first number of collision measurement probes (KS) that detect the offset of the collision strip (K), and wherein the first number of collision measurement probes (KS) are present only on one side of the carriage (F).

9. The medical imaging device (1) according to any one of claims 1 to 4, characterized in that, The collision sensor includes at least a first number of collision measurement probes (KS), wherein the first number of collision measurement probes (KS) are configured to detect the offset of the collision strip (K) in a tactile or non-contact manner.

10. The medical imaging device (1) according to claim 8, characterized in that, The collision strip (K) includes a second number of brackets (H) that mechanically connect the collision strip (K) to the carriage (F), and wherein at least one of the first number of collision measurement probes (KS) is integrated into one of the brackets (H) of the second number of brackets (H).

11. The medical imaging device (1) according to any one of claims 1 to 4, characterized in that, The medical imaging device also has a second collision sensor, which includes a second collision strip (K) that follows the contour of the carriage (F) and extends at least on a second side of the carriage (F) opposite to the first side.

12. The medical imaging device (1) according to claim 11, characterized in that, The second collision strip (K) extends on at least a portion of one or both sides of the carriage (F) which are constructed parallel to the axis (AT) of the translational movement and connected to the first side.

13. The medical imaging device (1) according to any one of claims 1 to 4, characterized in that, The medical imaging device includes a lifting device (HV), wherein the carriage (F) and the frame (20) are able to be lifted from the support on the track system (L) by means of the lifting device (HV) and are able to rotate about a vertical axis of rotation (RT).

14. The medical imaging device (1) according to any one of claims 1 to 4, characterized in that, The gantry (20) is a computed tomography gantry.

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