Computed tomography device with a body support device

Abstract

Computed tomography device (1) comprising a gantry (20) with an opening (9), a body support device (75) for supporting a human body (13) relative to the opening (9), a pivot bearing pin (7L) and a retaining structure (2C) for holding the pivot bearing pin (7L) relative to the opening (9), - wherein the body support device (75) comprises a board (7) and a board-side pivot bearing bushing (6), - wherein the board-side swivel bearing bushing (6) has a groove (60) with an open groove end and a stop surface (6F), wherein the stop surface (6F) is parallel to a swivel axis (6A) of the board-side swivel bearing bushing (6), - wherein the groove (60) is designed such that, starting from a starting position of the board (7) relative to the pivot bearing pin (7L), in which the pivot bearing pin (7L) is located outside the groove (60) and the pivot axis (6A) is aligned parallel to the pivot bearing pin (7L), the pivot bearing pin (7L) can be guided into the open end of the groove and along the groove (60) by a docking movement of the board (7) relative to the pivot bearing pin (7L) until a positive locking of the pivot bearing pin (7L) with the stop surface (6F), - wherein the board-side pivot bearing bushing (6) is attached to the board (7) in such a way that it follows the docking movement, - wherein the docking movement takes place perpendicular to the pivot axis (6A), in particular until the pivot axis (6A) is arranged substantially coaxially to the pivot bearing pin (7L), - wherein the board (7) is pivotably mounted relative to the gantry (20) about the pivot axis (6A) by means of the board-side pivot bearing bushing (6) and the pivot bearing pin (7L), when the pivot bearing pin (7L) is brought close to the stop surface (6F) until the positive locking occurs and the pivot axis (6A) is arranged substantially coaxially to the pivot bearing pin (7L).

Description

[0001] The invention relates to a computed tomography device with a body support device for supporting a human body relative to an opening.

[0002] The prior art in this context is US 2024 / 0000400A1. DE 2024 104954U1 describes an alternative form of a computed tomography device with a body support device.

[0003] The invention aims to provide a computed tomography device with a body support device for supporting a human body relative to the opening, particularly as an alternative to known solutions.

[0004] The independent claims relate to solutions to this problem. The dependent claims relate to particular embodiments of these solutions. Regardless of the grammatical gender of a given term, persons of male, female, or other gender identities are included.

[0005] The invention relates to a computed tomography device comprising a gantry with an opening, a body support device for supporting a human body relative to the opening, a pivot bearing pin and a retaining structure for holding the pivot bearing pin relative to the opening. - wherein the body support device comprises a board and a board-side pivot bearing bushing, - wherein the board-side swivel bearing bushing has a groove with an open groove end and a stop surface, the stop surface being parallel to a swivel axis of the board-side swivel bearing bushing, - wherein the groove is designed such that, starting from a starting position of the board relative to the pivot pin, in which the pivot pin is located outside the groove and the pivot axis is aligned parallel to the pivot pin, the pivot pin can be guided into the open end of the groove and along the groove by a docking movement of the board relative to the pivot pin until a positive locking of the pivot pin with the stop surface, - wherein the board-side swivel bearing bushing is attached to the board in such a way that it follows the docking movement, - wherein the docking movement is perpendicular to the pivot axis, in particular until the pivot axis is substantially coaxial to the pivot bearing pin, - wherein the board is pivotably mounted relative to the gantry about the pivot axis by means of the board-side pivot bearing bushing and the pivot bearing pin, when the pivot bearing pin is brought close to the stop surface until the positive locking occurs and the pivot axis is arranged substantially coaxially to the pivot bearing pin.

[0006] In particular, the board-side pivot bearing bushing may extend elongated and / or beam-shaped perpendicular to the pivot axis. In particular, the board-side pivot bearing bushing may be fixed to the board in such a way that it follows the docking movement. In particular, the pivot bearing pin may be connected to the gantry by means of the retaining structure. The stop surface may, in particular, form a closed end of the groove.

[0007] One embodiment provides that the body support device has a locking area, wherein the pivot bearing pin is secured against displacement in a direction radially away from the pivot axis and directly towards the open end of the groove by a positive locking of the pivot bearing pin with the locking area, when the pivot bearing pin is brought close to the stop surface up to the positive locking and the pivot axis is arranged substantially coaxially to the pivot bearing pin.

[0008] The direction that is radially away from the pivot axis and directly towards the open end of the slot is, in particular, perpendicular to the pivot axis.

[0009] One embodiment provides that the board-side pivot bearing bushing has a spring-loaded pressure piece, wherein, in a resting state of the spring-loaded pressure piece, a resiliently mounted body of the spring-loaded pressure piece projects through a bore in the pivot bearing bushing into the groove, so that the resiliently mounted body forms the locking area. The bore can, for example, be parallel to the pivot axis.

[0010] One embodiment provides that the spring-loaded pressure piece has an operating element and a spring, wherein actuation of the operating element causes the spring-loaded body to be removed from the groove against a force of the spring.

[0011] The operating element can, for example, be in the form of a pull handle. In particular, it can be provided that actuating the operating element involves pulling on the operating element and / or that removing the spring-mounted body is achieved by pulling the spring-mounted body out of the groove. The spring can, for example, extend in a coil-like shape along a spring axis. The spring axis can, in particular, be parallel to the pivot axis.

[0012] One embodiment provides that, during a section of the docking movement, the pivot pin temporarily pushes the resiliently mounted body of the resilient pressure piece out of the groove against a spring force of the resilient pressure piece, in particular before the positive locking of the pivot pin with the stop surface is achieved, and afterwards the resilient pressure piece assumes the basic state following the spring force as soon as the pivot pin has been brought close to the stop surface up to the positive locking and the pivot axis is arranged essentially coaxially to the pivot pin.

[0013] For this purpose, the spring-mounted body can, for example, be asymmetrical with respect to the spring axis and / or have an inclined return pressure surface. The spring force can, in particular, be the force of the spring of the spring-mounted pressure piece and / or act parallel to the spring axis. In particular, it can be provided that the spring force acts parallel to the pivot axis and / or that, during the docking movement, the spring force presses the spring-mounted body against an end face of the pivot bearing pin, wherein the end face of the pivot bearing pin extends perpendicular to the pivot axis and / or perpendicular to a longitudinal axis of the pivot bearing pin.

[0014] One embodiment provides that the stop surface is curved around the pivot axis. The stop surface can, for example, be designed in the form of the lateral surface of a half-cylinder and / or a cylinder sector.

[0015] One embodiment provides that the docking movement occurs along a curved path defined by the groove. In particular, an undercut in the groove can form the locking area. According to another embodiment, the docking movement can be linear.

[0016] One embodiment provides that the support structure has a gantry-side pivot bearing bushing, - wherein the pivot bearing pin is arranged essentially coaxially to a pivot axis of the gantry-side pivot bearing bushing and is positively secured against radial displacement relative to the pivot axis of the gantry-side pivot bearing bushing by means of the pivot bearing bushing, - wherein an end-face section of the pivot bearing pin protrudes from the gantry-side pivot bearing bushing to receive the pivot bearing pin into the board-side pivot bearing bushing.

[0017] The insertion of the pivot pin into the board-side pivot bearing bushing can be achieved, for example, by the docking movement. In particular, it can be provided that the pivot pin is simultaneously inserted into both the gantry-side pivot bearing bushing and the board-side pivot bearing bushing, and / or that the pivot axis of the gantry-side pivot bearing bushing and the pivot axis of the board-side pivot bearing bushing are coaxial, and especially that they are also coaxial with the pivot pin.

[0018] One embodiment provides that the board-side pivot bearing bushing is a first board-side pivot bearing bushing, wherein the body support device has a second board-side pivot bearing bushing. - wherein the end face section of the pivot bearing pin is a first end face section of the pivot bearing pin, - wherein a second end-face section of the pivot bearing pin protrudes from the gantry-side pivot bearing bushing for receiving the pivot bearing pin in the second board-side pivot bearing bushing, - wherein a central section of the pivot bearing pin is located within the gantry-side pivot bearing bushing.

[0019] The second board-side pivot bearing bushing can be designed to be essentially symmetrical to the first board-side pivot bearing bushing with respect to a plane of symmetry perpendicular to the pivot axis. At the transitions between the end-face sections and the central section, annular protrusions can be provided, wherein the pivot bearing pin is positively secured against axial displacement relative to the pivot axis of the gantry-side pivot bearing bushing by means of the annular protrusions.

[0020] The invention further relates to a use of the body support device of the computed tomography device according to the invention for supporting the human body relative to the opening, - wherein the board is arranged in the starting position such that one end of the board facing away from the pivot bearing pin is supported on a support structure, with the person lying on the support structure, - wherein the docking movement of the board relative to the pivot bearing pin is carried out until the pivot bearing pin engages with the stop surface, while the end of the board facing away from the pivot bearing pin is supported on the support structure and the person is lying on the support structure, - wherein a shift of the person relative to the support structure takes place, while the end of the board facing away from the pivot bearing pin is supported on the support structure and the board essentially rests relative to the support structure until the person's head is inserted into the opening and a shoulder area of ​​the person's body rests on the board.

[0021] In the context of this application, the person is also considered to be lying down on the support structure if the end of the board opposite the pivot pin is inserted between the person and the support structure. Additionally, a mattress, for example, may be provided above or below the end of the board opposite the pivot pin.

[0022] The computed tomography device can be configured, in particular, as a head-mounted computed tomography device for the head of an adult human being and / or as a mobile computed tomography device. Especially when the board is relatively long, for example with a length of approximately 800 mm, to bridge a gap between the gantry and the support structure, the solution according to the invention offers advantages in terms of easier handling and more flexible adaptation options within confined spaces, for example in an ambulance.

[0023] 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 article "a" or "an" does not preclude the possibility that the feature in question may be present multiple times.

[0024] The following examples, which may be helpful for understanding the invention and / or the technical problem to be solved, are explained with reference to the attached figures.

[0025] The Fig. Figure 1 shows a mobile computed tomography device with a body support device.

[0026] The Fig. Figures 2 to 9 show various exemplary components of the mobile computed tomography device.

[0027] The Fig. Figures 10 to 12 show an example of the use of the body support device.

[0028] The Fig. Figure 13 shows a flowchart of a procedure for supporting a human body.

[0029] The Fig. Figure 1 shows the mobile computed tomography device 1, comprising a gantry 20 with an opening 9, a body support device 75 for supporting a human body 13 relative to the opening 9, a pivot bearing pin 7L and a retaining structure 2C for holding the pivot bearing pin 7L relative to the opening 9, - wherein the body support device 75 comprises a board 7 and a board-side pivot bearing bushing 6, - wherein the board-side swivel bearing bushing 6 has a groove 60 with an open groove end and a stop surface 6F, wherein the stop surface 6F is parallel to a swivel axis 6A of the board-side swivel bearing bushing 6, - wherein the groove 60 is designed such that, starting from a starting position of the board 7 relative to the pivot bearing pin 7L, in which the pivot bearing pin 7L is located outside the groove 60 and the pivot axis 6A is aligned parallel to the pivot bearing pin 7L, the pivot bearing pin 7L can be guided into the open end of the groove and along the groove 60 by a docking movement of the board 7 relative to the pivot bearing pin 7L until a positive locking of the pivot bearing pin 7L with the stop surface 6F, - wherein the board-side pivot bearing bushing 6 is attached to the board 7 in such a way that it follows the docking movement, - wherein the docking movement takes place perpendicular to the pivot axis 6A, in particular until the pivot axis 6A is arranged substantially coaxially to the pivot bearing pin 7L, - wherein the board 7 is pivotably mounted relative to the gantry 20 about the pivot axis 6A by means of the board-side pivot bearing bushing 6 and the pivot bearing pin 7L, when the pivot bearing pin 7L is brought close to the stop surface 6F until the positive locking occurs and the pivot axis 6A is arranged substantially coaxially to the pivot bearing pin 7L.

[0030] The Fig. Figure 1 shows the computed tomography device 1 in the form of a mobile computed tomography device with the 8K head shell, - wherein the computed tomography device 1 has a gantry 20 with an opening 9 and a holding structure 2C for holding a component 8 relative to the opening 9, - wherein the holding structure 2C has a component support surface 2CY such that the component support surface 2CY positively counteracts a sinking of the component 8 relative to the holding structure 2C along a first connection axis CA1 when the component 8 is brought from above along the first connection axis CA1 until a positive connection of the component 8 with the component support surface 2CY to the holding structure 2C, - wherein the holding structure 2C has an alignment structure 2CZ such that the alignment structure 2CZ positively counteracts a rotation of the component 8 relative to the holding structure 2C about the first connection axis CA1 when the component 8 is brought from above along the first connection axis CA1 to the positive locking of the component 8 with the component support surface 2CY to the holding structure 2C.

[0031] The first gantry section 21 comprises the rotary bearing 25 and the support structure 26, wherein the rotor 24 is connected to the support structure 26 by means of the rotary bearing 25 and is rotatably mounted relative to the support structure 26 about the system axis SA. The rotor 24 comprises the projection data acquisition system 40. The projection data acquisition system 40 comprises an X-ray source for generating X-rays and an X-ray detector for detecting the X-rays.

[0032] The second gantry section 22 includes the support structure 2C, the body support device 75 with the board 7, and the touchscreen 38 for operating the computed tomography device 1. The board 7 is pivotally mounted relative to the gantry 20 about the pivot axis 7A by means of the pivot bearing bushing 7B and the pivot bearing pin 7L, the pivot axis 7A being horizontal and perpendicular to the system axis SA. The second gantry section 22 includes the support device 72 for the support structure 2C.

[0033] Gantry 20 has a casing V to separate an interior area of ​​gantry 20 from its surroundings. Gantry 20 has a third gantry section 23. The third gantry section 23 has a front surface of casing V. The front surface of casing V surrounds an annular front surface of opening 9. The first gantry section 21 has a rear surface of casing V. The rear surface of casing V surrounds an annular rear surface of opening 9.

[0034] The first gantry part 21 is mounted so as to be movable relative to the second gantry part 22 and relative to the third gantry part 23 that the translational movement of the first gantry part 21 can be carried out relative to the second gantry part 22 and the third gantry part 23, while at the same time the second gantry part 22 and the third gantry part 23 are at rest relative to the component 8, with the component 8 being inserted into the opening 9.

[0035] The example shown provides that the gantry 20 has a first gantry part 21 and a second gantry part 21, - wherein the first gantry part 21 has a projection data acquisition system 40, - wherein the second gantry part 22 has the holding structure 2C, - wherein the first gantry part 21 is mounted so as to be movable relative to the second gantry part 22 that a translational movement of the first gantry part 21 relative to the second gantry part 22 can be carried out parallel to the system axis SA, while at the same time the component 8 is at rest relative to the second gantry part 22, wherein the component 8 is brought from above along the first connecting axis CA1 to the positive locking of the component 8 with the component support surface 2CY to the holding structure 2C.

[0036] In particular, it may be provided that the second gantry part 22 has a chassis, wherein the chassis is arranged to move the gantry 20 relative to a floor of an examination room parallel to a translational direction, wherein the translational direction is horizontal and / or perpendicular to the system axis SA.

[0037] The example shown assumes that the computed tomography device 1 has component 8.

[0038] In particular, it may be provided that component 8 is brought from above along the first connection axis CA1 until the positive locking of component 8 with the component support surface 2CY against the holding structure 2C. In particular, it may be provided that the gantry has the holding structure.

[0039] The one in Fig. Example 1 shows that component 8 has a head cup 8K for holding a human head relative to the opening 9 for imaging the head using the computed tomography device 1.

[0040] The Fig. Figure 2 shows the body support device 75 with the board 7 in a transport position of the board 7.

[0041] The one in Fig. Example 1 shows that the computed tomography device 1 has the gantry 20 with the opening 9 and the body support device 75 for supporting a human body relative to the opening 9, - wherein the body support device 75 comprises a board 7, a swivel bearing bushing 7B and a swivel bearing pin 7L, - wherein the pivot bearing bushing 7B has a pivot bearing base 7B1, wherein the pivot bearing base 7B1 extends longitudinally along a pivot axis 7A of the pivot bearing bushing 7B, - wherein the pivot bearing base 7B1 has a slot extending parallel to the pivot axis 7A such that the pivot bearing pin 7L can be inserted into the slot in an insertion direction perpendicular to the pivot axis 7A and perpendicular to a longitudinal direction of the pivot bearing pin 7L, in particular until the pivot bearing pin 7L is arranged substantially coaxially to the pivot axis 7A, - wherein the pivot bearing bushing 7B has at least one pivot bearing cover 7B2, wherein the pivot bearing pin 7L is secured against displacement in a direction opposite to the insertion direction relative to the pivot axis 7A by a positive locking of the pivot bearing pin 7L with the at least one pivot bearing cover 7B2, if the pivot bearing pin 7L is arranged substantially coaxially to the pivot axis 7A and the at least one pivot bearing cover 7B2 is connected to the pivot bearing base 7B1, - wherein the board 7 can be pivotably mounted relative to the gantry 20 about the pivot axis 7A by means of the pivot bearing bushing 7B and the pivot bearing pin 7L in such a way that by a first pivoting movement of the board 7 about the pivot axis 7A the board 7 can be lowered relative to the gantry 20 from a preparation position of the board 7 to an examination position of the board 7.

[0042] The pivot axis 7A can, for example, be horizontal. The pivot axis 7A can, for example, be perpendicular to the first connecting axis CA1 and / or perpendicular to the system axis SA. In particular, it can be provided that the retaining structure 2C has the pivot bearing bushing 7B. In particular, it can be provided that the flat first wall surface extends parallel to the pivot axis 7A.

[0043] The body support device 75 includes the lever mechanism T, which is designed to positively lock the board 7 against lowering when the board 7 is in the prepared position. The lever mechanism T has a first lever arm T1 and a second lever arm T2 and is pivotably mounted about a lever axis TA that is parallel to the pivot axis 7A. The first lever arm T1 and the second lever arm T2 are rigidly connected to each other in the region of the lever axis TA.

[0044] In a corresponding operating state of the body support device 75, the lever mechanism T can positively lock the board 7 against lowering by blocking the path required for the first pivoting movement of the board 7 about the pivot axis 7A by the first lever arm T1. By manually pushing the second lever arm T2 away from the board 7 against the spring force of the torsion spring T6, the first lever arm T1 is lowered relative to the edge 7T of the board 7. In this way, the path required by the edge area 7T of the board 7 for the first pivoting movement of the board 7 about the pivoting axis 7A can be cleared, so that the board 7 can be lowered relative to the gantry 20 from the preparation position of the board 7 to an examination position of the board 7 by means of the first pivoting movement of the board 7 about the pivoting axis 7A.

[0045] In particular, it can be provided that during the preparation pivoting movement of the board 7 about the pivot axis 7A and / or during the further pivoting movement of the board 7 about the pivot axis 7A, the edge region 7T of the board 7 pushes the first lever arm T1 away, for example downwards, and thus clears the path that the edge region 7T of the board 7 requires for the preparation pivoting movement of the board 7 about the pivot axis 7A and / or for the further pivoting movement of the board 7 about the pivot axis 7A. In particular, it can be provided that as soon as the board 7 has reached the preparation position, the lever mechanism T pivots back to the rest position, for example driven by a torsion spring T6 of the lever mechanism T. The torsion spring T6 of the lever mechanism T can in particular be arranged coaxially to the lever axis TA.

[0046] The Fig. 6 and Fig. Figure 7 shows different views of the support structure 2C. The example shown provides that the alignment structure 2CZ is located below the component support surface 2CY with respect to the first connecting axis CA1.

[0047] The example shown provides that the holding structure 2C has a hole 2C1 for receiving a pin C1 of component 8 such that the pin C1 is inserted into the hole 2C1 along the first connection axis CA1 when component 8 is brought from above along the first connection axis CA1 to the point where component 8 engages with the component support surface 2CY of the holding structure 2C, and that component 8 is secured against displacement perpendicular to the first connection axis CA1 relative to the holding structure 2C by a displacement-blocking positive locking of the pin C1 with an inner wall of the hole 2C1 when the pin C1 is inserted into the hole 2C1 along the first connection axis CA1.

[0048] The example shown provides that the inner wall of the hole 2C1 forms the alignment structure 2CZ such that the component 8 is secured against rotation of the component 8 relative to the retaining structure 2C about the first connecting axis CA1 by a rotation-blocking positive locking of the pin C1 with the inner wall of the hole 2C1 when the pin C1 is inserted into the hole 2C1 along the first connecting axis CA1.

[0049] In particular, it may be provided that the inner wall of the hole 2C1 has a flat first wall surface for the rotationally blocking positive locking. Furthermore, it may be provided that the inner wall of the hole 2C1 has a circular arc-shaped second wall surface and / or that the flat first wall surface connects to the circular arc-shaped second wall surface in a chordal manner, in particular forming a closed contour of the inner wall of the hole 2C1. In particular, it may be provided that the flat first wall surface extends over a surface parallel to the first connecting axis CA1.

[0050] The example shown provides that the hole 2C1 has a funnel-shaped entry area 2C10, wherein a wide end of the funnel-shaped entry area 2C10 connects to the component support surface 2CY, and wherein a narrow end of the funnel-shaped entry area 2C10 connects to the inner wall of the hole 2C1.

[0051] The one in Fig. Example 7 shows that the pivot bearing base 7B1 has a groove which extends parallel to the pivot axis 7A in such a way that the at least one pivot bearing cover 7B2 can be inserted into the slot in a direction parallel to the pivot axis 7A, wherein a web of the at least one pivot bearing cover 7B2 can be inserted into the groove in the direction parallel to the pivot axis 7A in such a way that the at least one pivot bearing cover 7B2 is secured against displacement in the insertion direction and / or in the direction opposite to the insertion direction relative to the pivot axis 7A by a positive locking of the web with the groove.

[0052] The example shown provides that the retaining structure 2C has a spring-loaded pressure piece 2C11, wherein the spring-loaded pressure piece 2C11 projects into the hole 2C1 through a bore in the inner wall of the hole 2C1 such that when the pin C1 is inserted into the hole 2C1 along the first connecting axis CA1, the pin C1 pushes away a resiliently mounted body of the spring-loaded pressure piece 2C11 against a spring force of the spring-loaded pressure piece 2C11 in a direction that is substantially perpendicular to the first connecting axis CA1, in particular before the positive locking of the component 8 with the component support surface 2CY is achieved.

[0053] The example shown assumes that the first connecting axis CA1 is vertical.

[0054] In particular, it may be provided that the component support surface 2CY is planar and / or horizontal.

[0055] The example shown provides that the opening 9 extends in such a tunnel-like manner along a system axis SA of the gantry 20 that the component 8 can be inserted into the opening 9 along the system axis SA when the component 8 is brought from above along the first connecting axis CA1 until the positive locking of the component 8 with the component support surface 2CY to the holding structure 2C.

[0056] The system axis SA can, for example, be horizontal. In particular, it can be provided that the first connecting axis CA1 is perpendicular to the system axis SA and / or that the flat first wall section extends horizontally perpendicular to the system axis SA.

[0057] At one end of the groove, further insertion of at least one pivot bearing cover 7B2 can be prevented in such a form-fitting manner that the gap 2C27 remains open as part of the slot.

[0058] The holding structure 2C has a clamping jaw-side contact surface 2C2 for planar contact with a clamping jaw, wherein the clamping jaw-side contact surface 2C2 of the holding structure 2C extends planarly perpendicular to the second connecting axis CA2, and wherein the clamping jaw-side contact surface 2C2 of the holding structure 2C has a first partial surface 2C21 and a second partial surface 2C22. The holding structure 2C has a counterpart-side contact surface 2C3 of the holding structure 2C for planar contact with a counterpart to the clamping jaw, so that the holding structure 2C can be clamped between the clamping jaw and the counterpart.

[0059] The Fig. Figures 2 to 9 show various exemplary components of the mobile computed tomography device.

[0060] The example shown provides that the body support device 75 has a locking area 64, wherein the pivot bearing pin 7L is secured against displacement in a direction radially away from the pivot axis 6A and directly towards the open end of the groove by a positive locking of the pivot bearing pin 7L with the locking area 64, relative to the pivot axis 6A, when the pivot bearing pin 7L is brought up to the positive locking against the stop surface 6F and the pivot axis 6A is arranged substantially coaxially to the pivot bearing pin 7L.

[0061] The example shown provides that the board-side pivot bearing bushing 6 has a spring-loaded pressure piece 65, wherein in a basic state of the spring-loaded pressure piece 65 a spring-loaded body of the spring-loaded pressure piece 65 projects through a bore in the pivot bearing bushing 6 into the groove 60, so that the spring-loaded body forms the locking area 64.

[0062] The example shown provides that the spring-loaded pressure piece 65 has an operating element 63 and a spring 66, wherein actuation of the operating element 63 causes the spring-loaded body to be removed from the groove 60 against a force of the spring 66.

[0063] The example shown provides that during a section of the docking movement, the pivot pin 7L temporarily pushes the resiliently mounted body of the resilient pressure piece 65 out of the groove 60 against a spring force of the resilient pressure piece 65, in particular before the positive locking of the pivot pin 7L with the stop surface 6F is achieved, and afterwards the resilient pressure piece 65 assumes the ground state following the spring force as soon as the pivot pin 7L has been brought close to the stop surface 6F until the positive locking occurs and the pivot axis 6A is arranged substantially coaxially to the pivot pin 7L.

[0064] The example shown shows that the stop surface 6F is curved about the pivot axis 6A. The example shows that the docking movement takes place along a curved path defined by the groove 60.

[0065] The example shown provides that the support structure 2C has a gantry-side swivel bearing bushing 7B, - wherein the pivot bearing pin 7L is arranged essentially coaxially to a pivot axis 7B of the gantry-side pivot bearing bushing 7B and is positively secured against radial displacement relative to the pivot axis 7B of the gantry-side pivot bearing bushing 7B by means of the pivot bearing bushing 7B, - wherein an end-face section of the pivot bearing pin 7L protrudes from the gantry-side pivot bearing bushing 7B for receiving the pivot bearing pin 7L into the board-side pivot bearing bushing 6.

[0066] The example shown provides that the board-side pivot bearing bushing 6 is a first board-side pivot bearing bushing 61, wherein the body support device 75 has a second board-side pivot bearing bushing 62, - wherein the end face section of the pivot bearing pin 7L is a first end face section of the pivot bearing pin 7L, - wherein a second end-face section of the pivot bearing pin 7L protrudes from the gantry-side pivot bearing bushing 7B for receiving the pivot bearing pin 7L in the second board-side pivot bearing bushing 62, - wherein a central section of the pivot bearing pin 7L is located within the gantry-side pivot bearing bushing 7B.

[0067] The swivel bearing bushing 6 is screwed to the board 7 by means of the threaded holes 67.

[0068] The Fig. Figures 10 to 12 show an example of the use of the body support device 75, - wherein the board 7 is arranged S1 in the starting position such that an end of the board 7 facing away from the pivot bearing pin 7L is supported on a support structure 12, wherein the person 13 is positioned lying on the support structure 12, - wherein the docking movement S2 of the board 7 relative to the pivot bearing pin 7L is carried out until the pivot bearing pin 7L engages with the stop surface 6F, while the end of the board 7 facing away from the pivot bearing pin 7L is supported on the support structure 12 and the person 13 is lying on the support structure 12, - wherein a displacement 13 of the person 13 relative to the support structure 12 takes place, while the end of the board 7 facing away from the pivot bearing pin 7L is supported on the support structure 12 and the board 7 is essentially at rest relative to the support structure 12 until the head of the person 13 is inserted into the opening 9 and a shoulder area of ​​the body of the person 13 rests on the board 7.

[0069] The storage structure 12 is part of the transport stretcher 10.

[0070] The Fig. Figure 13 shows a flowchart of a procedure for supporting a human body relative to the opening of the computed tomography scanner 1, comprising - the board 7 is arranged S1 in the starting position such that an end of the board 7 facing away from the pivot bearing pin 7L is supported on a support structure 12, with the person 13 lying on the support structure 12, - performing S2 the docking movement of the board 7 relative to the pivot bearing pin 7L until the pivot bearing pin 7L engages with the stop surface 6F, while the end of the board 7 facing away from the pivot bearing pin 7L is supported on the support structure 12 and the person 13 is lying on the support structure 12, - a displacement 13 of the person 13 relative to the support structure 12, while the end of the board 7 facing away from the pivot bearing pin 7L is supported on the support structure 12 and the board 7 is essentially at rest relative to the support structure 12 until the head of the person 13 is inserted into the opening 9 and a shoulder area of ​​the body of the person 13 rests on the board 7. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] US 2024 / 0 000 400 A1

[0002] DE 20 2024 104 954 U1

[0002]

Claims

[1] Computed tomography device (1) comprising a gantry (20) with an opening (9), a body support device (75) for supporting a human body (13) relative to the opening (9), a pivot bearing pin (7L) and a retaining structure (2C) for holding the pivot bearing pin (7L) relative to the opening (9), - wherein the body support device (75) comprises a board (7) and a board-side pivot bearing bushing (6), - wherein the board-side swivel bearing bushing (6) has a groove (60) with an open groove end and a stop surface (6F), wherein the stop surface (6F) is parallel to a swivel axis (6A) of the board-side swivel bearing bushing (6), - wherein the groove (60) is designed such that, starting from a starting position of the board (7) relative to the pivot bearing pin (7L), in which the pivot bearing pin (7L) is located outside the groove (60) and the pivot axis (6A) is aligned parallel to the pivot bearing pin (7L), the pivot bearing pin (7L) can be guided into the open end of the groove and along the groove (60) by a docking movement of the board (7) relative to the pivot bearing pin (7L) until a positive locking of the pivot bearing pin (7L) with the stop surface (6F), - wherein the board-side pivot bearing bushing (6) is attached to the board (7) in such a way that it follows the docking movement, - wherein the docking movement takes place perpendicular to the pivot axis (6A), in particular until the pivot axis (6A) is arranged substantially coaxially to the pivot bearing pin (7L), - wherein the board (7) is pivotably mounted relative to the gantry (20) about the pivot axis (6A) by means of the board-side pivot bearing bushing (6) and the pivot bearing pin (7L), when the pivot bearing pin (7L) is brought close to the stop surface (6F) until the positive locking occurs and the pivot axis (6A) is arranged substantially coaxially to the pivot bearing pin (7L). [2] Computed tomography device (1) according to claim 1, - wherein the body support device (75) has a locking area (64), wherein the pivot bearing pin (7L) is secured against displacement in a direction radially away from the pivot axis (6A) and directly towards the open end of the groove by a positive locking of the pivot bearing pin (7L) with the locking area (64), relative to the pivot axis (6A), when the pivot bearing pin (7L) is brought close to the stop surface (6F) up to the positive locking and the pivot axis (6A) is arranged substantially coaxially to the pivot bearing pin (7L). [3] Computed tomography device (1) according to claim 2, - wherein the board-side swivel bearing bushing (6) has a spring-loaded pressure piece (65), - wherein in a basic state of the spring-loaded pressure piece (65) a spring-loaded body of the spring-loaded pressure piece (65) projects through a bore in the pivot bearing bushing (6) into the groove (60), so that the spring-loaded body forms the locking area (64). [4] Computed tomography device (1) according to claim 3, - wherein the spring-loaded pressure piece (65) comprises an operating element (63) and a spring (66), - wherein actuation of the control element (63) causes the spring-mounted body to be removed from the groove (60) against a force of the spring (66). [5] Computed tomography device (1) according to claim 3 or 4, - wherein, during a section of the docking movement, the pivot pin (7L) temporarily pushes the resiliently mounted body of the resilient pressure piece (65) out of the groove (60) against a spring force of the resilient pressure piece (65), in particular before the positive locking of the pivot pin (7L) with the stop surface (6F) is achieved, and thereafter the resilient pressure piece (65) assumes the initial state following the spring force as soon as the pivot pin (7L) has been brought close to the stop surface (6F) up to the positive locking and the pivot axis (6A) is arranged substantially coaxially to the pivot pin (7L). [6] Computed tomography device (1) according to any one of claims 1 to 5, - wherein the stop surface (6F) is curved around the pivot axis (6A). [7] Computed tomography device (1) according to any one of claims 1 to 6, - wherein the docking movement takes place along a curved path defined by the groove (60). [8] Computed tomography device (1) according to any one of claims 1 to 7, - wherein the retaining structure (2C) has a gantry-side pivot bearing bushing (7B), - wherein the pivot bearing pin (7L) is arranged substantially coaxially to a pivot axis (7B) of the gantry-side pivot bearing bushing (7B) and is positively secured against radial displacement relative to the pivot axis (7B) of the gantry-side pivot bearing bushing (7B) by means of the pivot bearing bushing (7B), - wherein an end-face section of the pivot bearing pin (7L) protrudes from the gantry-side pivot bearing bushing (7B) to receive the pivot bearing pin (7L) into the board-side pivot bearing bushing (6). [9] Computed tomography device (1) according to claim 8, - wherein the board-side pivot bearing bushing (6) is a first board-side pivot bearing bushing (61), wherein the body support device (75) has a second board-side pivot bearing bushing (62), - wherein the end face section of the pivot bearing pin (7L) is a first end face section of the pivot bearing pin (7L), - wherein a second end-face section of the pivot bearing pin (7L) protrudes from the gantry-side pivot bearing bushing (7B) for receiving the pivot bearing pin (7L) into the second board-side pivot bearing bushing (62), - wherein a central section of the pivot bearing pin (7L) is located within the gantry-side pivot bearing bushing (7B). [10] Use of the body support device (75) of the computed tomography device (1) according to any one of claims 1 to 9 for supporting the human body (13) relative to the opening (9), - wherein the board (7) is arranged (S1) in the starting position such that an end of the board (7) facing away from the pivot bearing pin (7L) is supported on a support structure (12), wherein the person (13) is supported lying on the support structure (12), - wherein the docking movement of the board (7) relative to the pivot bearing pin (7L) is carried out (S2) until the pivot bearing pin (7L) engages with the stop surface (6F), while the end of the board (7) facing away from the pivot bearing pin (7L) is supported on the support structure (12) and the person (13) is lying on the support structure (12), - wherein a displacement (13) of the person (13) relative to the support structure (12) takes place, while the end of the board (7) facing away from the pivot bearing pin (7L) is supported on the support structure (12) and the board (7) is essentially at rest relative to the support structure (12) until the head of the person (13) is inserted into the opening (9) and a shoulder area of ​​the body of the person (13) rests on the board (7).

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