System and method for driving a translational movement of a holding structure

Abstract

System (1) comprising a gantry (20) of a medical imaging device (2), a holding structure (3) for holding a component (30) for a medical imaging examination of an examination area (U), a chassis (W) and a guide device (5), - wherein the holding structure (3) is mounted so as to be movable relative to the examination area (U) by means of the guide device (5), wherein the holding structure (3) has a first connecting unit (C1), - wherein the gantry (20) is mounted so as to be movable relative to the area of ​​investigation (U) by means of the chassis (W), wherein the chassis (W) is configured to drive (M3) a translational movement of the gantry (20) relative to the area of ​​investigation (U), - wherein the gantry (20) has a second connecting unit (C2) which is configured corresponding to the first connecting unit (C1), wherein a connection can be established by means of the first connecting unit (C1) and the second connecting unit (C2) which counteracts a change in position of the holding structure (3) relative to the gantry (20) in such a way that the holding structure (3) follows the translational movement of the gantry (20) relative to the area under investigation (U) when the connection is established, - wherein the holding structure (3) is mounted so as to be movable relative to the gantry (20) by means of the guide device (5) when the connection is released, - wherein the component (30) has a radiation protection plate, the radiation protection plate at least partially covering an opening (9) of the gantry (20) into which the examination area (U) for medical imaging examination can be inserted along a system axis (AS) in order to prevent X-rays from escaping from the opening (9), - wherein the radiation protection plate extends over a surface in a component plane that is perpendicular to the system axis (AS).

Description

[0001] The invention relates to a system comprising a gantry of a medical imaging device and a holding structure for holding a component for a medical imaging examination of an area under investigation. The invention further relates to a method for driving a translational movement of the holding structure.

[0002] Particularly with medical imaging devices used for interventional medical imaging examinations, it may be necessary to adjust and maintain the position of a component for the medical imaging examination relative to the examination area and / or relative to the gantry of the medical imaging device, depending on the examination situation. This is especially true if the gantry is mounted to be movable relative to the examination area, and / or if a person performing the intervention is in close proximity to the gantry while the gantry is being moved relative to the examination area for the medical imaging examination.

[0003] The state of the art in this regard is US 2019 / 0 090 830 A1.

[0004] The invention aims to provide an alternative to conventional solutions relating to holding a component for a medical imaging examination of an examination area in relation to a gantry of a medical imaging device.

[0005] Each subject matter of an independent claim solves this problem. The dependent claims address further advantageous aspects of the invention. Regardless of the grammatical gender of a particular term, persons of male, female, or other gender identities are included.

[0006] The invention relates to a system comprising a gantry of a medical imaging device, a holding structure for holding a component for a medical imaging examination of an examination area, a chassis and a guide device, - wherein the holding structure is mounted so as to be movable relative to the area under investigation by means of the guide device, wherein the holding structure has a first connecting unit, - wherein the gantry is mounted so as to be movable relative to the area under investigation by means of the chassis, wherein the chassis is configured to drive a translational movement of the gantry relative to the area under investigation, - wherein the gantry has a second connecting unit which is configured to correspond to the first connecting unit, wherein a connection can be established by means of the first connecting unit and the second connecting unit which counteracts a change in position of the holding structure relative to the gantry in such a way that the holding structure follows the translational movement of the gantry relative to the area under investigation when the connection is established, - wherein the holding structure is mounted so as to be movable relative to the gantry by means of the guide device when the connection is released.

[0007] The translational movement can be, for example, rectilinear or curvilinear. The translational movement can be, for example, essentially horizontal, particularly horizontal. The gantry can, for example, be mounted so as to be movable relative to a base surface by means of the chassis. The chassis can, for example, be configured to drive a translational movement of the gantry relative to the base surface. The base surface can, for example, be essentially horizontal, particularly horizontal. In particular, it can be provided that the translational movement of the gantry is carried out relative to the examination area by performing the translational movement of the gantry relative to the base surface while the examination area remains stationary relative to the base surface. The examination area can, for example, be a region of an object under investigation. The object under investigation can, for example, be a patient.

[0008] The connection can be, in particular, non-destructively detachable. The connection can, in particular, be configured to transmit a force from the gantry to the holding structure, wherein the force drives a translational movement of the holding structure relative to the area under investigation such that the holding structure follows the translational movement of the gantry relative to the area under investigation. The force can, in particular, be a tensile force or a compressive force. The force can, in particular, be sufficient to overcome friction and / or a locking mechanism in the guide device, so that the holding structure can follow the translational movement of the gantry relative to the area under investigation.

[0009] In particular, it may be provided that, based on friction and / or locking in the guide device, the holding structure can be held in a position relative to the area under investigation and / or relative to the gantry by means of the guide device while the connection is released. In particular, it may be provided that, during the translational movement of the gantry relative to the area under investigation, the holding structure remains at rest relative to the area under investigation when the connection is released.

[0010] The translational movement of the support structure relative to the area under investigation and the translational movement of the gantry relative to the area under investigation can, in particular, be parallel to each other and at the same speed. Specifically, the gantry can be mounted by means of the chassis so that it is movable relative to the area under investigation, allowing the translational movement of the gantry relative to the area under investigation to be carried out. Specifically, the support structure can be mounted by means of the guide device so that it is movable relative to the area under investigation, allowing the translational movement of the support structure relative to the area under investigation to be carried out. Specifically, during the translational movement of the support structure relative to the area under investigation, the support structure is mounted by means of the guide device so that it is movable relative to the area under investigation.

[0011] One embodiment provides that the connection counteracts the removal of the holding structure from the gantry in such a way, in particular by means of a force-fit connection, that the holding structure follows the translational movement of the gantry relative to the area under investigation when the connection is established and the translational movement of the gantry relative to the area under investigation is directed away from the holding structure.

[0012] In particular, a system is hereby disclosed comprising a gantry of a medical imaging device, a holding structure for holding a component for a medical imaging examination of an examination area, a chassis and a guide device, - wherein the holding structure is mounted so as to be movable relative to the area under investigation by means of the guide device, wherein the holding structure has a first connecting unit, - wherein the gantry is mounted so as to be movable relative to the area under investigation by means of the chassis, wherein the chassis is configured to drive a translational movement of the gantry relative to the area under investigation, - wherein the gantry has a second connecting unit which is configured corresponding to the first connecting unit, wherein a connection can be established by means of the first connecting unit and the second connecting unit which counteracts a removal of the holding structure from the gantry in such a way that the holding structure follows the translational movement of the gantry relative to the area under investigation when the connection is established and the translational movement of the gantry relative to the area under investigation is directed away from the holding structure, - wherein the holding structure is mounted so as to be movable relative to the gantry by means of the guide device when the connection is released.

[0013] One embodiment provides that the connection is based on a magnetic attraction between the first connecting unit and the second connecting unit. In particular, it can be provided that the first connecting unit has a magnet and that the second connecting unit has a ferromagnetic material. Alternatively, it can be provided that the second connecting unit has a magnet and that the first connecting unit has a ferromagnetic material.

[0014] The magnet can be, in particular, a permanent magnet or an electromagnet. The permanent magnet can, for example, be a rare-earth magnet, especially a neodymium magnet. The ferromagnetic material can, for example, be ferromagnetic steel. The ferromagnetic material can, in particular, be arranged in a planar form, for example, as a plate and / or a strip, especially a sheet metal strip. The magnet can, for example, have a flat outer surface against which the ferromagnetic material can lie flat.

[0015] One embodiment provides that the connection releases non-destructively if a positive locking mechanism in the guide device prevents the holding structure from continuing to follow the translational movement of the gantry relative to the area under investigation.

[0016] The positive locking mechanism in the guide device can be created, for example, by a mechanical reach limiter and / or a tilting of parts of the guide device relative to each other. In particular, if a ceiling arm of the guide device were to tilt or the gantry were to travel too far, the support structure could automatically detach from the gantry. This prevents damage to people and / or equipment. Translational movement of the gantry relative to the examination area can be directed away from the support structure.

[0017] One embodiment provides that the system has a protective layer, wherein the protective layer is arranged on the first connecting unit such that the protective layer protects a surface of the gantry, in particular a surface of the second connecting unit, from scratches caused by the first connecting unit, especially during the connection process and / or particularly after the connection has been made. The protective layer can, for example, be made of a textile material, in particular felt. This prevents scratches, in particular paint scratches, on the surface of the gantry.

[0018] One embodiment provides that the gantry has a casing which separates an interior area of ​​the gantry from its surroundings, with the second connecting unit being attached to the casing. The second connecting unit can, for example, be arranged on a side of the casing facing the interior area of ​​the gantry and / or on a side of the casing facing the surroundings of the gantry. In particular, it can be provided that the retaining structure and / or the guide device is located in the surroundings of the gantry.

[0019] In particular, the gantry may be provided with a base for receiving the second connecting unit, wherein the cladding has a contact surface facing the base and having a curvature, wherein the base has a first contact surface that follows the curvature of the contact surface of the cladding and rests flat against the contact surface of the cladding, wherein the second connecting unit extends flat in a connecting plane, and wherein the base has a second contact surface that is flat and configured to receive the second connecting unit. The second connecting unit may, in particular, be designed flat, for example in the form of a plate and / or a strip, especially a sheet metal strip.

[0020] In particular, positive locking elements may be provided in the area of ​​the first connecting unit and / or in the area of ​​the second connecting unit. These elements positively counteract any displacement of the first and second connecting units relative to each other parallel to the connection plane when the connection is established. The positive locking elements may, for example, be recesses and / or shoulders, as well as corresponding pins and / or frame elements.

[0021] One embodiment provides that the holding structure comprises a holding element for the component and a joint unit for the first connecting unit, wherein the first connecting unit is pivotably mounted relative to the holding element about a pivot axis by means of the joint unit. This allows, for example, the inclination of the first connecting unit to be adjusted to the inclination of the second connecting unit without changing the inclination of the component. This can be particularly advantageous when the cladding has an inclined contact surface and a flat second connecting unit resting directly on it, where the connection plane is then, for example, not vertical. The holding element can, for example, be rod-shaped and / or oriented substantially vertically, particularly vertically.

[0022] According to the invention, the component has a radiation shielding plate. One embodiment provides that the component also has a screen. The component can, for example, extend planarly in a component plane. The component plane can, for example, be substantially vertical, in particular vertical. The component can, for example, be pivotably mounted relative to the holding element about a vertical axis and / or about a horizontal axis by means of a component joint unit.

[0023] The radiation shielding plate can, for example, be a lead glass plate and / or be designed to provide upper body radiation protection for a person. According to the invention, the radiation shielding plate at least partially covers an opening in the gantry into which the examination area for the medical imaging examination can be inserted, in order to prevent X-rays from escaping the opening. The screen can, for example, be configured to display images of the examination area generated by the medical imaging device.

[0024] In this way, the screen and radiation shielding plate can move with the gantry without needing to be permanently attached. This allows the person performing the procedure, who is in close proximity to the gantry, to observe the examination area, for example, directly from the outside or via the images on the screen. If necessary, the support structure can be detached from the gantry and positioned independently relative to the examination area using the guide device.

[0025] In particular, the system may include the component and / or the component may be held in place by the holding structure. Furthermore, the component may be designed to be used for interventions within the area under investigation. For example, the component may include a laser projection system and / or a medical intervention tool.

[0026] One embodiment provides that the guide device has an articulated arm and / or a linear guide. In particular, it can be provided that the translational movement of the holding structure relative to the area of ​​investigation and / or the translational movement of the gantry relative to the area of ​​investigation runs parallel to the linear guide.

[0027] One embodiment provides that the guide device is attached to the ceiling of an examination room. The linear guide can, for example, comprise a ceiling rail. The articulated arm can, for example, be designed as a ceiling arm. In particular, it can be provided that the floor of the examination room supports the chassis.

[0028] One embodiment provides that the chassis is a rail chassis and / or a wheel chassis. The system may, in particular, include rails on which the chassis runs. The rails may, in particular, be integrated into the base. The chassis may, in particular, include a set of wheels that roll on a base and / or on the rails.

[0029] One embodiment provides that the medical imaging device is a computed tomography (CT) scanner, a C-arm X-ray scanner, or a magnetic resonance imaging (MRI) scanner. The medical imaging device may, in particular, be a rail-mounted CT scanner. Specifically, it may be provided that the system includes the medical imaging device and / or that the medical imaging device is configured to perform the medical imaging examination.

[0030] The medical imaging device may, in particular, include a patient table. The gantry may, for example, be mounted so that it can be moved relative to the patient table by means of a chassis. The chassis may, for example, be configured to drive a translational movement of the gantry relative to the patient table. In particular, it may be provided that the translational movement of the gantry relative to the examination area is carried out by performing the translational movement of the gantry relative to the patient table while the examination area is at rest relative to the patient table and / or while the patient table is at rest relative to the base. The examination area may, for example, be a section of the patient table.When the patient bed is stationary relative to the floor, the risk of damaging cables and / or tubes used for an intervention, for example, is reduced compared to a patient bed that is moved relative to the floor.

[0031] The invention further relates to a method for driving a translational movement of the holding structure of the system according to the invention relative to the area under investigation, the method comprising: - moving the support structure relative to the gantry in such a way that the first connecting unit and the second connecting unit approach each other, - establishing the connection using the first connection unit and the second connection unit, - driving the translational movement of the gantry relative to the area under investigation by means of the chassis, wherein a force is transmitted from the gantry to the support structure by means of the connection, in particular by means of a force-fit connection, wherein the force drives the translational movement of the support structure relative to the area under investigation in such a way that the support structure follows the translational movement of the gantry relative to the area under investigation.

[0032] One embodiment provides that the translational movement of the gantry is directed away from the support structure relative to the area under investigation, with the support structure being pulled along by the chassis by means of the gantry and the connection.

[0033] One embodiment provides that the connection is released non-destructively by driving a movement of the holding structure and the gantry relative to each other in such a way that the first connecting unit and the second connecting unit move away from each other, in particular by overcoming an attractive force acting between the first connecting unit and the second connecting unit.

[0034] The gantry of a medical imaging device typically has a supporting structure on which components of the acquisition unit, such as the radiation source and / or the radiation detector, are mounted. The supporting structure of the gantry is particularly stiff and strong enough to ensure that the components of the acquisition unit are arranged on the supporting structure in a geometry sufficiently defined for medical imaging, both relative to each other and relative to the examination area.

[0035] In a computed tomography scanner, the gantry typically comprises a support frame and a rotor rotatably mounted relative to the support frame, with the radiation source and the radiation detector arranged on the rotor. Optionally, the gantry can include a tilting frame mounted relative to the support frame, with the rotor arranged on the tilting frame.

[0036] In a C-arm X-ray machine, the gantry typically has a support frame and a C-arm that is pivotably mounted relative to the support frame, with the radiation source and the radiation detector located on the C-arm.

[0037] In a magnetic resonance imaging device, the gantry typically has a support frame on which the main magnet and a first high-frequency antenna unit are arranged, the first high-frequency antenna unit being designed in the form of a body coil, which is also known to those skilled in the art as a "body coil".

[0038] Within the scope of the invention, features described in relation to different embodiments of the invention and / or different claim categories (method, use, device, system, arrangement, etc.) can be combined to form further embodiments of the invention. For example, a claim relating to a device can also be further developed with features described or claimed in connection with a method, and vice versa. Functional features of a method can be implemented by appropriately designed physical components. The use of the indefinite articles "a" or "an" does not preclude the possibility that the feature in question may be present multiple times.

[0039] The invention is explained below with reference to exemplary embodiments and the accompanying figures. The representation in the figures is schematic, greatly simplified, and not necessarily to scale.

[0040] The Fig. Figure 1 shows a system comprising a gantry of a medical imaging device and a holding structure for holding a component.

[0041] The Fig. Figure 2 shows a view of a first connection unit and a second connection unit according to another example.

[0042] The Fig. Figure 3 shows a flowchart of a procedure for driving a translational movement of the holding structure of the system.

[0043] The Fig. Figure 1 shows the system 1, comprising a gantry 20 of a medical imaging device 2, a holding structure 3 for holding a component 30 for a medical imaging examination of an examination area U, a chassis W and a guide device 5, - wherein the holding structure 3 is mounted so as to be movable relative to the examination area U by means of the guide device 5, wherein the holding structure 3 has a first connecting unit C1, - wherein the gantry 20 is mounted so as to be movable relative to the investigation area U by means of the chassis W, wherein the chassis W is configured to drive M3 a translational movement of the gantry 20 relative to the investigation area U, - wherein the gantry 20 has a second connecting unit C2 which is configured corresponding to the first connecting unit C1, wherein a connection can be established by means of the first connecting unit C1 and the second connecting unit C2 which counteracts a change in position of the holding structure 3 relative to the gantry 20 in such a way that the holding structure 3 follows the translational movement of the gantry 20 relative to the area under investigation U when the connection is established, - wherein the holding structure 3 is mounted so as to be movable relative to the gantry 20 by means of the guide device 5 when the connection is released.

[0044] According to the example, the connection is designed to counteract the removal of the holding structure 3 from the gantry 20 in such a way that the holding structure 3 follows the translational movement of the gantry 20 relative to the investigation area U when the connection is established and the translational movement of the gantry 20 relative to the investigation area U is directed away from the holding structure 3.

[0045] According to the example, the connection is based on a magnetic attraction between the first connection unit C1 and the second connection unit C2. The example also stipulates that the connection releases non-destructively when a positive locking mechanism in the guide device 5 prevents the retaining structure 3 from further following the translational movement of the gantry 20 relative to the test area U.

[0046] According to the example, system 1 is provided to have a protective layer C0, wherein the protective layer C0 is arranged on the first connecting unit C1 such that the protective layer C0 protects a surface of the gantry 20 from scratching by the first connecting unit C1. According to the example, the gantry 20 is provided to have a cover V, which separates an interior area 28 of the gantry 20 from its surroundings, wherein the second connecting unit C2 is attached to the cover V.

[0047] The medical imaging device 2 comprises the gantry 20, the tunnel-shaped opening 9, and the patient table 10. The gantry 20 comprises the rotor 24, the rotary bearing LR, the tilting bearing LK, the support frame 21, and the tilting frame 23. The tilting frame 23 is mounted on the support frame 21 by means of the tilting bearing LK, allowing it to tilt about the tilting axis AK relative to the support frame 21. The tilting axis AK is perpendicular to the system axis AS. The rotor 24 is mounted on the tilting frame 23 by means of the rotary bearing LR, allowing it to rotate about a rotational axis relative to the tilting frame 23. In the Fig. In the operating state of system 1 shown in section 1, the axis of rotation is parallel to the system axis AS.

[0048] The patient 13 can be inserted into the tunnel-shaped opening 9. The acquisition area is located in the tunnel-shaped opening 9. The examination area U of the patient 13 can be positioned in the acquisition area such that X-rays from the radiation source 41 can reach the examination area U and, after interaction with the examination area U, reach the radiation detector 45. The patient table 10 has the positioning base 11 and the positioning plate 12 for positioning the patient 13. The positioning plate 12 can be inserted into the tunnel-shaped opening 9 by a translational movement of the gantry 20 relative to the patient table 10 in a longitudinal direction of the positioning plate 12, in particular along the system axis AS.

[0049] The medical imaging device 2 is designed for acquiring acquisition data based on electromagnetic radiation. The medical imaging device 2 includes an acquisition unit. The acquisition unit is a projection data acquisition unit with the radiation source 41, e.g., an X-ray source, and the detector 45, e.g., an X-ray detector, in particular an energy-resolving X-ray detector. The rotor includes the radiation source 41 and the radiation detector 45.

[0050] According to the Fig. In the example shown, the second connecting unit C2 is arranged on a side of the cladding V facing the environment of the gantry 20. A dimension of the first connecting unit C1 in a horizontal direction perpendicular to the system axis AS can, for example, be larger, in particular many times larger, than a dimension of the first connecting unit C1 in a vertical direction and / or smaller, in particular many times smaller, than a dimension of the opening 9 in the horizontal direction perpendicular to the system axis AS.

[0051] For example, a dimension of the second connecting unit C2 in the horizontal direction perpendicular to the system axis AS can be larger, in particular many times larger, than a dimension of the second connecting unit C2 in the vertical direction and / or smaller, in particular many times smaller, than the dimension of the opening 9 in the horizontal direction perpendicular to the system axis AS.

[0052] Component 30 is a radiation shielding plate and extends over a surface in a component plane that is perpendicular to the system axis AS. The dimension of component 30 in the horizontal direction perpendicular to the system axis AS can be approximately equal to the dimension of opening 9 in the horizontal direction perpendicular to the system axis AS. Opening 9 has a substantially circular cross-section. If component 30 includes a screen, the screen can, for example, extend over a surface in a screen component plane that is vertical and parallel to the system axis AS.

[0053] According to the example, the guide device 5 is provided to have an articulated arm 6 and a linear guide 7. According to the example, the guide device 5 is provided to be attached to a ceiling D of an examination room.

[0054] The linear guide 7 includes the ceiling rail 71 and the rail carriage 72. The articulated arm 6 is attached to the rail carriage 72 and is mounted by means of the linear guide 7 so that it can be moved relative to the ceiling D and thus relative to the examination area U. The articulated arm 6 has the joint units 61, 63, and 35, each of which allows pivoting about a corresponding vertical axis and pivoting about a corresponding horizontal axis. For example, the articulated arm section 64 can be pivoted independently of the articulated arm section 62 about a vertical axis and about a horizontal axis by means of the joint unit 63. The vertical axis and the horizontal axis can also be arranged skew to each other, i.e., without a common point of intersection.

[0055] According to the example, the chassis W is a rail chassis and / or a wheeled chassis. According to the example, the medical imaging device 2 is a computed tomography scanner.

[0056] The Fig. Figure 2 shows a view of the first connecting unit C1 and the second connecting unit C2 according to another example, wherein the second connecting unit C2 is arranged on a side of the cladding V facing the interior 28 of the gantry 20.

[0057] In the Fig. In the operating state of system 1 shown in Figure 2, the connection is released so that during the translational movement of the gantry 20 relative to the area of ​​investigation U, the holding structure 3 is at rest relative to the area of ​​investigation U or can be moved independently of the gantry 20 relative to the area of ​​investigation U by means of the guide device 5.

[0058] According to the example, the holding structure 3 is provided to have a holding element 31 for holding the component 30 and a joint unit LC for the first connecting unit C1, wherein the first connecting unit C1 is pivotably mounted relative to the holding element 31 about a pivot axis AC by means of the joint unit LC for the first connecting unit C1.

[0059] The retaining structure 3 has a clamp 33 and a screw 32 for connecting the joint unit LC to the retaining element 31, in particular by manually clamping and screwing it in place. The height of the first connecting unit C1 above the base B can be adjusted along the vertically oriented rod-shaped retaining element 31.

[0060] The radiation protection plate 30 has a recess 39. When the patient 13 is inserted into the opening 9, an edge of the recess 39 substantially conforms to the circumference of the patient 13, so that the radiation protection plate 30 substantially covers the gap formed between the circumference of the patient 13 and an edge of the opening 9, preventing X-rays from escaping the opening 9.

[0061] In particular, it can be provided that the connection counteracts the change in position of the holding structure 3 relative to the gantry 20 in such a way that the first connecting unit C1 follows a tilting movement of the tilting frame 23 relative to the support frame 21 by means of a pivoting movement about the pivot axis AC when the connection is made.

[0062] The Fig.Figure 3 shows a flowchart of a method for driving a translational movement of the holding structure 3 of the system 1 according to one of claims 1 to 12 relative to the investigation area U, the method comprising: - a movement M1 of the support structure 3 relative to the gantry 2 such that the first connecting unit C1 and the second connecting unit C2 approach each other, - establishing connection M2 using the first connection unit C1 and the second connection unit C2, - a driving M3 of the translational movement of the gantry 20 relative to the investigation area U by means of the chassis W, wherein a force is transmitted from the gantry 20 to the support structure 3 by means of the connection, wherein the force drives the translational movement of the support structure 3 relative to the investigation area U such that the

[0063] Holding structure 3 follows the translational movement of the gantry 20 relative to the investigation area U.

[0064] The movement M1 of the holding structure 3 relative to the gantry 20 can be driven, for example, by a person applying a force by hand to the holding structure 3 using the handle 37.

[0065] According to the example, the translational movement of the gantry 20 relative to the investigation area U is directed away from the support structure 3, with the support structure 3 being pulled along by the chassis W by means of the gantry 20 and the connection.

[0066] Arrow T2 indicates the translational movement of the gantry 20 relative to the area under investigation U. Arrow T2 indicates that the support structure 3 and at least parts of the guide device 5 are pulled along by the chassis W by means of the gantry 20 and the connection.

[0067] According to the example, the connection is intended to be released non-destructively by driving a movement of the holding structure 3 and the gantry 20 relative to each other such that the first connecting unit C1 and the second connecting unit C2 move away from each other.

Claims

[1] System (1) comprising a gantry (20) of a medical imaging device (2), a holding structure (3) for holding a component (30) for a medical imaging examination of an examination area (U), a chassis (W) and a guide device (5), - wherein the holding structure (3) is mounted so as to be movable relative to the examination area (U) by means of the guide device (5), wherein the holding structure (3) has a first connecting unit (C1), - wherein the gantry (20) is mounted so as to be movable relative to the area of ​​investigation (U) by means of the chassis (W), wherein the chassis (W) is configured to drive (M3) a translational movement of the gantry (20) relative to the area of ​​investigation (U), - wherein the gantry (20) has a second connecting unit (C2) which is configured corresponding to the first connecting unit (C1), wherein a connection can be established by means of the first connecting unit (C1) and the second connecting unit (C2) which counteracts a change in position of the holding structure (3) relative to the gantry (20) in such a way that the holding structure (3) follows the translational movement of the gantry (20) relative to the area under investigation (U) when the connection is established, - wherein the holding structure (3) is mounted so as to be movable relative to the gantry (20) by means of the guide device (5) when the connection is released, - wherein the component (30) has a radiation protection plate, the radiation protection plate at least partially covering an opening (9) of the gantry (20) into which the examination area (U) for medical imaging examination can be inserted along a system axis (AS) in order to prevent X-rays from escaping from the opening (9), - wherein the radiation protection plate extends over a surface in a component plane that is perpendicular to the system axis (AS). [2] System (1) according to claim 1, - wherein the connection counteracts the removal of the holding structure (3) from the gantry (20) such that the holding structure (3) follows the translational movement of the gantry (20) relative to the area under investigation (U) when the connection is established and the translational movement of the gantry (20) relative to the area under investigation (U) is directed away from the holding structure (3). [3] System (1) according to claim 1 or 2, - wherein the connection is based on a magnetic attraction between the first connection unit (C1) and the second connection unit (C2). [4] System (1) according to any one of claims 1 to 3, - the connection releases non-destructively if a positive locking mechanism in the guide device (5) prevents the holding structure (3) from continuing to follow the translational movement of the gantry (20) relative to the area under investigation (U). [5] System (1) according to any one of claims 1 to 4, - wherein the system (1) has a protective layer (C0), - wherein the protective layer (C0) is arranged on the first connecting unit (C1) such that the protective layer (C0) protects a surface of the gantry (20) from scratching by the first connecting unit (C1). [6] System (1) according to any one of claims 1 to 5, - wherein the gantry (20) has a cladding (V) which separates an interior area (28) of the gantry (20) from an environment of the gantry (20), - wherein the second connecting unit (C2) is attached to the cover (V). [7] System (1) according to any one of claims 1 to 6, - wherein the holding structure (3) comprises a holding element (31) for holding the component (30) and a joint unit (LC) for the first connecting unit (C1), - wherein the first connecting unit (C1) is pivotably mounted relative to the holding element (31) about a pivot axis (AC) by means of the joint unit (LC) for the first connecting unit (C1). [8] System (1) according to any one of claims 1 to 7, - where component (30) has a screen. [9] System (1) according to any one of claims 1 to 8, - wherein the guide device (5) has an articulated arm (6) and / or a linear guide (7). [10] System (1) according to any one of claims 1 to 9, - wherein the guide device (5) is attached to a ceiling (D) of an examination room. [11] System (1) according to any one of claims 1 to 10, - where the chassis (W) is a rail chassis and / or a wheel chassis. [12] System (1) according to any one of claims 1 to 11, - wherein the medical imaging device (2) is a computed tomography device, a C-arm X-ray device or a magnetic resonance imaging device. [13] Method for driving a translational movement of the holding structure (3) of the system (1) according to any one of claims 1 to 12 relative to the area under investigation (U), the method comprising: - a movement (M1) of the support structure (3) relative to the gantry (20) such that the first connecting unit (C1) and the second connecting unit (C2) approach each other, - establishing (M2) the connection using the first connection unit (C1) and the second connection unit (C2), - a driving (M3) of the translational movement of the gantry (20) relative to the investigation area (U) by means of the chassis (W), wherein a force is transmitted from the gantry (20) to the support structure (3) by means of the connection, wherein the force drives the translational movement of the support structure (3) relative to the investigation area (U) such that the support structure (3) follows the translational movement of the gantry (20) relative to the investigation area (U). [14] Method according to claim 13, - wherein the translational movement of the gantry (20) is directed away from the holding structure (3) relative to the area of ​​investigation (U), - wherein the support structure (3) is pulled along by the chassis (W) by means of the gantry (20) and the connection. [15] Method according to claim 13 or 14, - wherein the connection is released non-destructively by driving a movement of the holding structure (3) and the gantry (20) relative to each other such that the first connecting unit (C1) and the second connecting unit (C2) move away from each other.

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