System and method for driving translational movement of retaining structure

Abstract

The invention relates to a system and a method for driving translational movement of a holding structure. The invention relates to a system for a medical imaging device, comprising a frame of the medical imaging device, a holding structure for holding a component for a medical imaging examination of an examination region, a chassis and a guide device, the holding structure being movably mounted relative to the examination region by means of the guide device, the holding structure having a first connecting unit, wherein the machine frame is movably mounted relative to the inspection region by means of a chassis, the chassis is designed to drive a translational movement of the machine frame relative to the inspection region, the machine frame has a second connecting unit which is formed corresponding to the first connecting unit, and a connection can be established by means of the first connecting unit and the second connecting unit, the connection resists a change in position of the retaining structure relative to the machine frame, so that when the connection is established, the retaining structure follows a translational movement of the machine frame relative to the inspection area, and when the connection is released, the retaining structure is movably supported relative to the machine frame through a guide device.

Description

Technical Field

[0001] The invention relates to a system having a frame of a medical imaging device and a holding structure for holding components for medical imaging examination of an examination area. The invention also relates to a method for driving a translational movement of the holding structure. Background Art

[0002] In particular, for medical imaging devices used for medical imaging examinations during interventions, it may be necessary to adapt and maintain the position of components used for the medical imaging examination as a function of the examination situation relative to the examination region and / or relative to the gantry of the medical imaging device. This applies in particular if the gantry is mounted movably relative to the examination region and / or if the person performing the intervention is located near the gantry, which is moved relative to the examination region for the medical imaging examination. Summary of the invention

[0003] The object of the present invention is to provide an alternative to conventional solutions for the retention of components for medical imaging examinations of an examination area with respect to a frame of a medical imaging device. This object is achieved according to each subject of the present invention. Further advantageous aspects of the present invention are considered in the description. Regardless of the grammatical gender of a particular term, persons with a masculine identity, a feminine identity are included.

[0004] The invention relates to a system having a frame of a medical imaging device, a holding structure for holding components for a medical imaging examination of an examination area, a chassis and a guide device,

[0005] wherein the holding structure is movably mounted relative to the examination region via a guide device, wherein the holding structure has a first connecting unit,

[0006] wherein the frame is movably mounted relative to the examination region via a chassis, wherein the chassis is designed to drive a translational movement of the frame relative to the examination region,

[0007] wherein the frame has a second connection unit formed corresponding to the first connection unit, wherein a connection can be established by means of the first connection unit and the second connection unit, which connection resists position changes of the holding structure relative to the frame, so that when the connection is established, the holding structure follows a translational movement of the frame relative to the examination area,

[0008] wherein the holding structure is supported movably relative to the machine frame via the guide device when the connection is released.

[0009] The translational movement can be, for example, linear or curvilinear. For example, the translational movement can be substantially horizontal, in particular horizontal. For example, the gantry can be movably supported relative to the ground by a chassis. The chassis can be designed, for example, to drive a translational movement of the gantry relative to the ground. The ground can, for example, be substantially horizontal, in particular horizontal. In particular, it can be provided that the translational movement of the gantry relative to the examination region is performed in such a way that the translational movement of the gantry relative to the ground is performed while the examination region is stationary relative to the ground. The examination region can, for example, be the region of an examination subject. The examination subject can, for example, be a patient.

[0010] The connection can be released in a non-destructive manner. The connection can be designed in particular to transmit a force from the frame to the holding structure, wherein the force drives a translational movement of the holding structure relative to the examination region, so that the holding structure follows the translational movement of the frame relative to the examination region. The force can be in particular a traction force or a compressive force. The force can in particular be sufficient to overcome friction and / or locking in the guide device, so that the holding structure can follow the translational movement of the frame relative to the examination region.

[0011] In particular, it can be provided that during the loosening of the connection, the holding structure can be held in a position relative to the examination region and / or relative to the frame by the guide device due to friction and / or locking in the guide device. In particular, it can be provided that when the connection is loosened, during a translational movement of the frame relative to the examination region, the holding structure remains stationary relative to the examination region.

[0012] The translational movement of the holding structure relative to the examination region and the translational movement of the frame relative to the examination region can in particular be parallel to each other and at the same speed. The frame can in particular be supported movably relative to the examination region by a chassis so that a translational movement of the frame relative to the examination region can be performed. The holding structure can in particular be supported movably relative to the examination region by a guide device so that a translational movement of the holding structure relative to the examination region can be performed. In particular, during the translational movement of the holding structure relative to the examination region, the holding structure is supported movably relative to the examination region by the guide device.

[0013] Embodiments provide that the connection resists, in particular non-positively resists, removal of the holding structure from the frame so that the holding structure follows the translational movement of the frame relative to the examination region when the connection is established and the translational movement of the frame relative to the examination region is directed away from the holding structure.

[0014] In particular, a system is disclosed herein having a frame of a medical imaging device, a holding structure for holding components for a medical imaging examination of an examination area, a chassis, and a guide device.

[0015] wherein the holding structure is movably mounted relative to the examination region via a guide device, wherein the holding structure has a first connecting unit,

[0016] wherein the frame is movably mounted relative to the examination region via a chassis, wherein the chassis is designed to drive a translational movement of the frame relative to the examination region,

[0017] wherein the frame has a second connection unit formed corresponding to the first connection unit, wherein a connection can be established by means of the first connection unit and the second connection unit, which connection resists removal of the holding structure from the frame, so that when the connection is established and a translational movement of the frame relative to the examination region is directed away from the holding structure, the holding structure follows the translational movement of the frame relative to the examination region,

[0018] wherein the holding structure is supported movably relative to the machine frame via the guide device when the connection is released.

[0019] Embodiments provide that the connection is based on a magnetic attraction force between the first connection unit and the second connection unit. In particular, it can be provided that the first connection unit has a magnet and the second connection unit has a ferromagnetic material. Alternatively, it can be provided that the second connection unit has a magnet and the first connection unit has a ferromagnetic material.

[0020] The magnet can be, in particular, a permanent magnet or an electromagnet. The permanent magnet can be, for example, a rare earth magnet, in particular a neodymium magnet. The ferromagnetic material can be, for example, a ferromagnetic steel. The ferromagnetic material can be, in particular, arranged in a planar manner, for example in the form of plates and / or strips, in particular sheet metal strips. For example, the magnet can have a flat outer surface, against which the ferromagnetic material can rest in a planar manner.

[0021] Embodiments provide that the connection is released without loss of force when the positive fit in the guide prevents the holding structure from following any further translational movement of the machine frame relative to the examination region.

[0022] For example, a positive fit in the guide device may result from a mechanical range limitation and / or a tilting of the components of the guide device relative to one another. In particular, if a ceiling arm of the guide device should tilt or the rack should move too far, the holding structure can thus be automatically separated from the rack. This can avoid injuries to people and / or equipment. In particular, a translational movement of the rack relative to the examination area can be directed away from the holding structure.

[0023] In one embodiment, the system has a protective layer, wherein the protective layer is arranged on the first connection unit such that the protective layer protects the surface of the frame, in particular the surface of the second connection unit, from scratching influences from the first connection unit, in particular during and / or in particular when the connection is established. The protective layer can be made of a textile material, in particular felt, for example. Scratches on the surface of the frame, in particular paint scratches, can thus be avoided.

[0024] Embodiments provide that the rack has a housing which delimits the interior area of ​​the rack from the environment of the rack, wherein the second connection unit is fixed to the housing. For example, the second connection unit can be arranged on the side of the housing facing the interior area of ​​the rack and / or on the side of the housing facing the environment of the rack. In particular, it can be provided that the holding structure and / or the guide device are located in the environment of the rack.

[0025] In particular, it can be provided that the frame has a base for accommodating the second connecting unit, wherein the housing 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 housing and lies flat against the contact surface of the housing, wherein the second connecting unit extends flat in the connecting plane, wherein the base has a second contact surface that is flat and is designed to accommodate the second connecting unit. The second connecting unit can be designed in particular in a flat manner, for example in the form of a plate and / or a strip, in particular a sheet metal strip.

[0026] In particular, a form-fitting element can be provided in the region of the first connecting unit and / or in the region of the second connecting unit, which, when the connection is established, resists a movement of the first connecting unit and the second connecting unit relative to one another parallel to the connecting plane in a form-fitting manner. The form-fitting element can be, for example, a recess and / or a shoulder and a corresponding pin and / or frame element.

[0027] Embodiments provide that the holding arrangement has a holding element for holding the component and an articulation unit for the first connecting unit, wherein the first connecting unit is pivotably supported relative to the holding element about a pivot axis by means of the articulation unit for the first connecting unit. Thus, the inclination of the first connecting unit can be adapted, for example, to the inclination of the second connecting unit, without changing the inclination of the component. This can be particularly advantageous in the case of an inclined contact surface of the housing and a flat second connecting unit lying directly thereon, wherein the connecting plane is, for example, not vertical. For example, the holding element can be rod-shaped and / or oriented substantially vertically, in particular vertically.

[0028] In particular, it can be provided that the frame has an opening and / or that the frame is designed in an annular manner around a system axis of the frame. For example, the opening can be tunnel-shaped and / or extend along the system axis of the frame. The opening can, for example, extend along the system axis of the frame in a tunnel-shaped manner, so that the support plate of the patient bed can be introduced into the tunnel-shaped opening along the system axis, in particular if the longitudinal direction of the support plate is substantially parallel to the system axis.

[0029] The system axis can extend, for example, through the opening, in particular through the central region of the opening. The system axis can extend, for example, through the isocenter of the medical imaging device. In particular, it can be provided that the system axis is horizontal and / or that the translational movement of the gantry relative to the examination region is performed parallel to the system axis.

[0030] The component can have, for example, a radiation protection device for covering the opening. In particular, it can be provided that the radiation protection device counteracts the escape of X-ray radiation from the opening when the connection is established. In particular, it can be provided that the radiation protection device shields the surrounding area of ​​the gantry from scattered beams of X-ray radiation that are substantially parallel to the system axis and / or that are directed from the opening to the surrounding area of ​​the gantry when the connection is established.

[0031] When the connection is established, the radiation protection device can be arranged, for example, between the gantry and the environmental region with respect to the system axis. The environmental region can, for example, be located with respect to the system axis in a section in which at least a part of the patient bed is located with respect to the system axis. In particular, the environmental region can be located above the patient bed and / or beside the patient bed in a horizontal direction perpendicular to the system axis.

[0032] Embodiments provide that the component has a radiation protection plate and / or a screen. The component can, for example, extend planarly in a component plane. For example, the component plane can be substantially vertical, in particular vertical. For example, the component can be pivotally supported relative to the holding element about a vertical axis and / or about a horizontal axis by means of a component articulation unit.

[0033] The radiation protection plate can be, for example, a lead glass plate and / or be designed for radiation protection of the upper body of a person. For example, the radiation protection plate can at least partially cover an opening of a gantry in order to counteract the escape of X-ray radiation from the opening, into which an examination area for a medical imaging examination can be introduced. For example, the screen can be designed to display an image of the examination area generated by a medical imaging device.

[0034] In this way, the screen and the radiation shield can be moved together with the gantry without them having to be fixedly mounted on the gantry. Thus, for example, the examination area where an intervention is to be carried out can be observed by the person who is carrying out the intervention and is located near the gantry not only directly from the outside but also by means of the image on the screen. If necessary, the holding structure can be separated from the gantry and positioned independently of the gantry relative to the examination area by means of the guide device.

[0035] In particular, it can be provided that the radiation protection plate counteracts the escape of X-ray radiation from the opening when the connection is established. In particular, it can be provided that the radiation protection plate shields the surrounding area of ​​the gantry from scattered beams of X-ray radiation that are substantially parallel to the system axis and / or that are directed from the opening to the surrounding area of ​​the gantry when the connection is established.

[0036] When the connection is established, the radiation protection plate can be arranged, for example, between the gantry and the environmental region with respect to the system axis. The environmental region can, for example, be located with respect to the system axis in a section in which at least a part of the patient bed is located with respect to the system axis. In particular, the environmental region can be located above the patient bed and / or beside the patient bed in a horizontal direction perpendicular to the system axis.

[0037] In particular, it can be provided that the radiation protection plate extends in a planar manner in the component plane and / or that the component plane is perpendicular to the system axis. The radiation protection device can, for example, have a radiation protection plate and / or a radiation protection curtain. The radiation protection curtain can, for example, be fastened to the radiation protection plate and / or hang down from the radiation protection plate. The radiation protection curtain can, for example, be fastened to a holding structure and / or hang down from a holding structure.

[0038] In particular, it can be provided that the system has a component and / or that the component is held by a holding structure. It can also be provided that the component can be used for interventions in the examination area. The component can, for example, have a laser projection system and / or a medical intervention tool.

[0039] Embodiments provide that the guide device has an articulated arm and / or a linear guide. In particular, it can be provided that a translational movement of the holding structure relative to the examination region and / or a translational movement of the frame relative to the examination region runs parallel to the linear guide.

[0040] Embodiments provide that the guide device is fixed to the ceiling of the 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 bottom of the examination room carries the chassis.

[0041] Embodiments provide that the chassis is a rail chassis and / or a wheel chassis. The system can in particular have a track on which the chassis runs. The track can in particular be integrated into the ground. The chassis can in particular have a set of wheels that roll on the ground and / or the track.

[0042] Embodiments provide that the medical imaging device is a computed tomography device, a C-arm X-ray device or a magnetic resonance tomography device. The medical imaging device can be, in particular, a track-mounted computed tomography device. In particular, it can be provided that the system has a medical imaging device and / or that the medical imaging device is designed to perform a medical imaging examination.

[0043] The medical imaging device may in particular have a patient bed. The gantry may be movably supported relative to the patient bed, for example, by a chassis. The chassis may be designed, for example, to drive a translational movement of the gantry relative to the patient bed. In particular, it may be provided that the translational movement of the gantry relative to the examination region is performed in such a way that the translational movement of the gantry relative to the patient bed is performed while the examination region is stationary relative to the patient bed and / or while the patient bed is stationary relative to the ground. The examination region may be, for example, the region of the patient bed. Compared to a patient bed that moves relative to the ground, the risk of damaging cables and / or hoses, for example, used for an intervention, is reduced when the patient bed is stationary relative to the ground.

[0044] The invention also relates to a method for driving a translational movement of a holding structure of a system according to the invention relative to an examination area, the method comprising:

[0045] - moving the holding structure relative to the frame so that the first connecting unit and the second connecting unit are brought closer to each other,

[0046] - establishing a connection via the first connection unit and the second connection unit,

[0047] - a translational movement of the frame relative to the examination region is driven by the chassis, wherein forces are transmitted from the frame to the holding structure via the connection, in particular in a force-locking manner, wherein the forces drive the translational movement of the holding structure relative to the examination region, so that the holding structure follows the translational movement of the frame relative to the examination region.

[0048] Embodiments provide that a translational movement of the machine frame relative to the examination region is directed away from the holding structure, wherein the holding structure is pulled by the chassis through the machine frame and the connection.

[0049] An embodiment provides that the connection is released non-destructively by driving the holding structure and the frame to move relative to each other so 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.

[0050] The gantry of a medical imaging device usually has a supporting structure, on which in particular components of an acquisition unit, such as a radiation source and / or a radiation detector, are arranged. The supporting structure of the gantry has in particular such a high rigidity and strength that the components of the acquisition unit are arranged on the supporting structure in a geometry that is well defined for medical imaging, both relative to one another and relative to the examination region.

[0051] In a computed tomography apparatus, a gantry usually has a supporting frame and a rotor rotatably mounted relative to the supporting frame, wherein the radiation source and the radiation detector are arranged on the rotor. Alternatively, the gantry can have a tilting frame tiltably mounted relative to the supporting frame, wherein the rotor is arranged on the tilting frame.

[0052] In a C-arm X-ray device, a gantry usually has a supporting frame and a C-arm which is mounted so as to be pivotable relative to the supporting frame, wherein a radiation source and a radiation detector are arranged on the C-arm.

[0053] In magnetic resonance tomography systems, the gantry usually has a support frame on which a main magnet and a first high-frequency antenna unit are arranged, wherein the first high-frequency antenna unit is designed in the form of a body coil, which is also known to those skilled in the art by the term “Body Coil”.

[0054] Within the scope of the present invention, features described with respect to different embodiments of the present invention and / or different claim categories (method, use, device, system, component, etc.) can be combined to form other embodiments of the present invention. For example, claims related to a device can also be expanded by using features described or claimed in conjunction with a method, and vice versa. Here, the functional features of the method can be implemented by specific components of the corresponding structure. The use of the indefinite article "a" or "an" does not exclude that the relevant features may also exist multiple times. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The invention is explained below by means of exemplary embodiments with reference to the drawings, in which the illustrations are schematic, greatly simplified and not necessarily true to scale.

[0056] Figure 1 A system is shown having a frame of a medical imaging device and a holding structure for holding components,

[0057] Figure 2 shows a view of a first connection unit and a second connection unit according to another example,

[0058] Figure 3 A flow chart showing a method for translational movement of a holding structure of a drive system is shown. DETAILED DESCRIPTION

[0059] Figure 1 A system 1 is shown having a frame 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,

[0060] wherein the holding structure 3 is movably supported relative to the examination region U via a guide device 5 , wherein the holding structure 3 has a first connecting unit C1 ,

[0061] wherein the frame 20 is movably supported relative to the examination region U via a chassis W, wherein the chassis W is designed to drive a translational movement of the frame 20 relative to the examination region U,

[0062] wherein the frame 20 has a second connection unit C2 formed corresponding to the first connection unit C1, wherein a connection can be established by means of the first connection unit C1 and the second connection unit C2, which connection resists position changes of the holding structure 3 relative to the frame 20, so that when the connection is established, the holding structure 3 follows the translation movement of the frame 20 relative to the examination area U,

[0063] In this case, when the connection is released, the holding structure 3 is mounted movably relative to the machine frame 20 via the guide device 5 .

[0064] According to the example, it is provided that the connection resists removal of the holding structure 3 from the gantry 20 so that the holding structure 3 follows the translational movement of the gantry 20 relative to the examination region U when the connection is established and the translational movement of the gantry 20 relative to the examination region U is directed away from the holding structure 3 .

[0065] According to the example, the connection is based on a magnetic attraction force between the first connecting unit C1 and the second connecting unit C2. According to the example, the connection is released non-destructively when the form fit in the guide device 5 prevents the holding structure 3 from following a further translational movement of the gantry 20 relative to the examination region U.

[0066] According to the example, the system 1 has a protective layer C0, wherein the protective layer C0 is arranged on the first connecting unit C1, so that the protective layer C0 protects the surface of the frame 20 from scratches from the first connecting unit C1. According to the example, the frame 20 has a housing V, which delimits the inner area 28 of the frame 20 from the environment of the frame 20, wherein the second connecting unit C2 is fixed to the housing V.

[0067] The medical imaging device 2 has a gantry 20, a tunnel-shaped opening 9 and a patient bed 10. The gantry 20 has a rotor 24, a rotating support LR, a tilting support LK, a supporting frame 21 and a tilting frame 23. The tilting frame 23 is supported on the supporting frame 21 by the tilting support LK so as to be tiltable relative to the supporting frame 21 about a tilting axis AK. The tilting axis AK is perpendicular to the system axis AS. The rotor 24 is supported on the tilting frame 23 by the rotating support LR so as to be rotatable relative to the tilting frame 23 about a rotation axis. Figure 1 In the operating state shown, the axis of rotation is parallel to the system axis AS.

[0068] The patient 13 can be introduced into the tunnel-shaped opening 9. The acquisition area is located in the tunnel-shaped opening 9. In the acquisition area, the examination area U of the patient 13 can be positioned so that the X-ray radiation from the radiation source 41 can reach the examination area U and can reach the radiation detector 45 after interacting with the examination area U. The patient bed 10 has a support base 11 and a support plate 12 for supporting the patient 13. The support plate 12 can be introduced into the tunnel-shaped opening 9 by a translation movement of the gantry 20 relative to the patient bed 10 in the longitudinal direction of the support plate 12, especially along the system axis AS.

[0069] The medical imaging device 2 is designed to acquire acquisition data based on electromagnetic radiation. The medical imaging device 2 has an acquisition unit. The acquisition unit is a projection data acquisition unit, which has a radiation source 41 such as an X-ray source and a detector 45 such as an X-ray detector, in particular an energy-resolving X-ray detector. The rotor has the radiation source 41 and the radiation detector 45.

[0070] according to Figure 1 In the example shown, the second connection unit C2 is arranged on the side of the housing V facing the environment of the rack 20. For example, the dimension of the first connection unit C1 in the horizontal direction perpendicular to the system axis AS can be larger, especially much larger, than the dimension of the first connection unit C1 in the vertical direction, and / or smaller, especially much smaller, than the dimension of the opening 9 in the horizontal direction perpendicular to the system axis AS.

[0071] For example, the dimension of the second connection unit C2 in the horizontal direction perpendicular to the system axis AS can be larger, especially much larger, than the dimension of the second connection unit C2 in the vertical direction and / or smaller, especially much smaller than the dimension of the opening 9 in the horizontal direction perpendicular to the system axis AS.

[0072] The component 30 is a radiation shield and extends planarly in a component plane perpendicular to the system axis AS. The dimension of the component 30 in a horizontal direction perpendicular to the system axis AS can be approximately equal to the dimension of the opening 9 in a horizontal direction perpendicular to the system axis AS. The opening 9 has a substantially circular cross section. If the component 30 has a screen, the screen can, for example, extend planarly in a screen component plane vertically and parallel to the system axis AS.

[0073] According to the example, it is provided that the guide device 5 has an articulated arm 6 and a linear guide 7. According to the example, it is provided that the guide device 5 is fastened to a ceiling D of the examination room.

[0074] The linear guide 7 has a ceiling rail 71 and a rail bracket 72. The articulated arm 6 is fixed to the rail bracket 72 and is supported movably relative to the ceiling D and thus relative to the inspection area U via the linear guide 7. The articulated arm 6 has articulation units 61, 63 and 35, which can respectively realize pivoting around the corresponding vertical axis and pivoting around the corresponding horizontal axis. For example, the articulated arm section 64 can be pivoted independently of each other about the vertical axis and about the horizontal axis relative to the articulated arm section 62 via the articulation unit 63. The vertical axis and the horizontal axis can also be arranged obliquely to each other, that is, without a common intersection point,

[0075] According to the example, it is provided that the chassis W is a rail chassis and / or a wheel chassis. According to the example, it is provided that the medical imaging device 2 is a computed tomography device.

[0076] Figure 2 A view of a first connection unit C1 and a second connection unit C2 according to another example is shown, wherein the second connection unit C2 is arranged on a side of the housing V facing the inner area 28 of the frame 20 .

[0077] In system 1 Figure 2 In the operating state shown, the connection is released so that during the translational movement of the frame 20 relative to the examination region U, the holding structure 3 is stationary relative to the examination region U or can be moved relative to the examination region U independently of the frame 20 via the guide device 5 .

[0078] According to the example, the holding structure 3 has a holding element 31 for the holding 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 via the joint unit LC for the first connecting unit C1 .

[0079] The holding structure 3 has clamps 33 and screws 32 for connecting the joint unit LC to the holding element 31, in particular for manual clamping and tightening. Here, the height of the first connecting unit C1 above the ground B can be adjusted along the vertically oriented rod-shaped holding element 31.

[0080] The radiation protection plate 30 has a cutout 39. When the patient 13 is introduced into the opening 9, the edge of the cutout 39 is substantially adjacent to the periphery of the patient 13, so that the radiation protection plate 30 substantially covers the gap formed between the periphery of the patient 13 and the edge of the opening 9, preventing X-ray radiation from escaping from the opening 9.

[0081] In particular, it can be provided that the connection resists position changes of the holding structure 3 relative to the frame 20 so that when the connection is established, the first connecting unit C1 follows the tilting movement of the tilting frame 23 relative to the supporting frame 21 by a pivoting movement about the pivot axis AC.

[0082] Figure 3 A flow chart showing a method for driving a translational movement of a holding structure 3 of a system 1 according to the invention relative to an examination area U is shown, the method comprising:

[0083] - moving the holding structure 3 relative to the frame 2 M1 so that the first connecting unit C1 and the second connecting unit C2 approach each other,

[0084] - establishing a connection M2 via the first connection unit C1 and the second connection unit C2,

[0085] - The M3 frame 20 is driven for translational movement relative to the examination area U via the chassis W, wherein force is transmitted from the frame 20 to the holding structure 3 via the connection, wherein the force drives the translational movement of the holding structure 3 relative to the examination area U, so that the holding structure 3 follows the translational movement of the frame 20 relative to the examination area U.

[0086] The movement M1 of the holding structure 3 relative to the machine frame 20 can be driven, for example, in that a person manually exerts a force on the holding structure 3 via the handle 37 .

[0087] According to the example, it is provided that the translational movement of the frame 20 relative to the examination region U is directed away from the holding structure 3 , wherein the holding structure 3 is pulled by the chassis W through the frame 20 and the connection.

[0088] Arrow T2 indicates the translational movement of the frame 20 relative to the examination area U. Arrow T2 indicates that at least a part of the holding structure 3 and the guide means 5 are pulled by the chassis W through the frame 20 and the connection.

[0089] According to the example, it is provided that the connection is released non-destructively by driving a movement of the holding structure 3 and the machine frame 20 relative to one another so that the first connecting unit C1 and the second connecting unit C2 move away from one another.

Claims

1. A system (1) comprising a frame (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), -in, The holding structure (3) is supported movably relative to the inspection region (U) via the guide device (5), wherein the holding structure (3) has a first connecting unit (C1). - wherein the frame (20) is movably supported relative to the examination area (U) via the chassis (W), wherein the chassis (W) is designed to drive (M3) a translational movement of the frame (20) relative to the examination area (U), - wherein the frame (20) has a second connection unit (C2) formed corresponding to the first connection unit (C1), wherein a connection can be established by means of the first connection unit (C1) and the second connection unit (C2), the connection resisting a position change of the holding structure (3) relative to the frame (20), so that when the connection is established, the holding structure (3) follows the translation movement of the frame (20) relative to the inspection area (U), - wherein, when the connection is released, the holding structure (3) is supported movably relative to the machine frame (20) via the guide device (5).

2. The system (1) according to claim 1, -in, The connection resists removal of the retaining structure (3) from the frame (20) so that when the connection is established and the translational movement of the frame (20) relative to the examination area (U) is directed away from the retaining structure (3), the retaining structure (3) follows the translational movement of the frame (20) relative to the examination area (U).

3. The system (1) according to claim 1 or 2, - wherein the connection is based on a magnetic attraction force between the first connection unit (C1) and the second connection unit (C2).

4. The system (1) according to any one of claims 1 to 3, wherein the connection is released without loss of force when the form fit in the guide device (5) prevents the holding structure (3) from further following the translational movement of the frame (20) relative to the inspection area (U).

5. System (1) according to any one of claims 1 to 4, - wherein the system (1) has a protective layer (C0), -in, The protective layer (C0) is arranged on the first connection unit (C1), so that the protective layer (C0) protects the surface of the frame (20) from scratches from the first connection unit (C1).

6. System (1) according to any one of claims 1 to 5, -in, The rack (20) has a housing (V) which delimits an interior area (28) of the rack (20) from the environment of the rack (20), - wherein the second connecting unit (C2) is fixed on the housing (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 hinge unit (LC) for the first connecting unit (C1), -in, The first connecting unit (C1) is supported pivotably about a pivot axis (AC) relative to the holding element (31) via the hinge unit (LC) for the first connecting unit (C1).

8. System (1) according to any one of claims 1 to 7, - wherein the component (30) has a radiation protection plate and / or 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 fixed on the ceiling (D) of the inspection room.

11. System (1) according to any one of claims 1 to 10, - wherein the chassis (W) is a track 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 tomography device.

13. A method for driving a translational movement of a holding structure (3) of a system (1) according to any one of claims 1 to 12 relative to the examination area (U), the method comprising: - moving (M1) the holding structure (3) relative to the frame (20) so that the first connecting unit (C1) and the second connecting unit (C2) are brought closer to each other, - establishing (M2) the connection via the first connection unit (C1) and the second connection unit (C2), - driving (M3) the translational movement of the frame (20) relative to the examination area (U) via the chassis (W), wherein a force is transmitted from the frame (20) to the holding structure (3) via the connection, wherein the force drives the translational movement of the holding structure (3) relative to the examination area (U), so that the holding structure (3) follows the translational movement of the frame (20) relative to the examination area (U).

14. The method according to claim 13, -in, The translational movement of the frame (20) relative to the examination area (U) is directed away from the holding structure (3), - wherein the retaining structure (3) is pulled by the chassis (W) through the frame (20) and the connection.

15. The method according to claim 13 or 14, - wherein the connection is released non-destructively by driving the holding structure (3) and the frame (20) to move relative to one another so that the first connecting unit (C1) and the second connecting unit (C2) move away from one another.

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