Apparatus for assisting a surgeon

Abstract

The apparatus according to the invention is used to assist a surgeon. The apparatus (1) has a movable platform (3), a main column (5), which projects from the platform (3) and has a seat (7), an upper body support device (9), and at least one actuation unit (15). The actuation unit (15) is arranged in a region (B) between a seat surface of the seat (7) and the platform (3) such that the surgeon can reach the actuation unit (15) with their foot and therefore a surgeon sitting on the seat (7) of the apparatus (1) can easily reach the actuation unit (15) with their foot, more particularly with their heel or sole, where possible from every position.

Description

Equipment to support a surgeon

[0001] The invention relates to a device for supporting a surgeon, which is particularly designed to support the body of a surgeon during an operation, such as a surgical intervention.

[0002] Support systems for surgeons, such as operating chairs, are generally known and are designed to support the surgeon, who normally stands at the operating table, in such a way that he or she can carry out operations that sometimes take a long time and require a restrained position, or operations that place particular demands on the surgeon's fine motor skills, with little or no fatigue, and ideally can carry them out reliably and to a high standard.

[0003] DE 10 2020 103 861 B3 discloses an operating chair which serves to support a surgeon. The surgeon can sit on the operating chair during an operation. This operating chair has a seat supported by a height-adjustable column, wherein the column stands on an articulated device which defines two tilt axes for the column and which is assigned a locking device in order to lock manually set tilt positions so that the column maintains a desired tilt position. The column extends from a walkable platform, on the top of which several Foot-operated control switches are located to lock and release the column. The platform also allows the surgeon to place his feet on the platform during surgery.

[0004] In an operating room there is usually only limited space for the operating table and other additional equipment, such as an operating chair. This restricts the dimensions of the operating chair and therefore also of the operating chair platform. In particular, this restricts the size of the area of ​​the platform in which the surgeon can place his feet during the operation. The operating chair should also be able to be moved as close as possible to the operating area in order to keep the distance between the surgeon sitting on the operating chair and the operation site as small as possible and to offer the surgeon the most comfortable operating position possible. The control switches can be designed as foot pedals, for example.The foot-operated control switches for operating the operating chair are located in this limited area of ​​the platform, which means that the surgeon can trip over the control switches when stepping onto the platform and / or accidentally and / or incorrectly operate the control switches during the operation.

[0005] Based on this, the object of the invention is to provide an improved device for assisting a surgeon which reduces the risk of tripping or the risk of accidental misoperation by the surgeon.

[0006] This object is achieved with the device for assisting an operator according to claim 1:

[0007] The device according to the invention has a platform from which an adjustable base column with a seat for the surgeon attached projects. The device also has an upper body holding device with a traction means, to the end of which a harness worn by the surgeon can be coupled and uncoupled. The device also has at least one actuating unit for controlling the base column and / or the upper body holding device, which is arranged in a region between a seating surface of the seat and the platform in such a way that the actuating unit can be reached by the surgeon with his foot, preferably with the heel or the sole of the foot. The actuating unit is particularly ergonomic because the surgeon can reach the actuating unit with his foot without overextending the foot or leg.

[0008] This allows the operating unit for controlling the base column and / or the upper body support device to be positioned on the platform in a space-saving manner, and in particular, not in the front area of ​​the platform where the surgeon can rest his feet during the operation. The platform can thus be configured exclusively for the surgeon's feet, reducing the risk of tripping or operating errors by the surgeon.

[0009] A special feature of the device according to the invention is that the operating unit is arranged below the seat, which allows a particularly Ergonomic and intuitive operation of the operating unit is enabled, and the operating unit is arranged on the platform in a space-saving manner. The surgeon can step backwards with his foot, for example with his heel or the sole of his foot, with relatively little effort in order to reach the operating unit, without having to concentrate on the actuation process.

[0010] The actuating unit is in particular arranged at least substantially perpendicular to the platform, whereby the actuating unit can be equipped with a large actuating surface that the surgeon can use to control the device. The surgeon can thus reach the actuating unit with his foot without having to concentrate on the actuating process. Furthermore, the cleaning and / or disinfection of the device required before or after an operation can be facilitated because the platform can have a simpler design, for example by forming the upper side of the platform as a flat surface.

[0011] The actuating unit can have several, preferably at least two, separately operable actuating elements that the operator can operate with his or her foot. The actuating direction of the actuating elements of the actuating unit is preferably aligned parallel to one another and / or to the surface of the platform.

[0012] The platform can have a trapezoidal or rectangular outline. In particular, it can also have a T-shaped outline so that its narrow end can be moved forward under an operating table. and the risk of a collision with a column supporting the operating table can be reduced. The device preferably has an electrically driven travel device arranged beneath the platform. The device can preferably be moved along at least two directions of travel using the travel device.

[0013] The adjustable base column can extend (in a basic position) at least substantially perpendicular to the platform. For example, the adjustable base column can be height-adjustable and / or laterally pivotable and / or forward and backward pivotable. The traction means of the upper body support device can be, for example, a belt, a band, or a (wire) rope.

[0014] The upper body holding device can have an abutment for the traction device, for example with an electrically driven winch on which the traction device can be wound up and unwound. By winding up or unwinding the traction device on the winch, the length of the traction device can be changed by the upper body holding device. If the end of the traction device is coupled to a harness worn by the surgeon, the angle of inclination at which the surgeon's upper body is held can be adjusted by changing the length of the traction device. The surgeon's harness can be a harness for the surgeon's upper body, with a coupling connection arranged on the surgeon's back when the surgeon is wearing the harness.

[0015] In particular, the actuating unit is in a Area that runs at least substantially between the seat and the platform. The area in which the actuating unit is arranged is, in particular, shaped like a truncated pyramid, with a top surface defined at the height of the seat and a base surface defined at the height of the platform, the centers of which are preferably arranged vertically one above the other. The top surface and the base surface of the truncated pyramid can, for example, be designed as a polygon, rectangle, square, or circle. If the seat is height-adjustable, the top surface of the area is preferably defined at the height of the lowest possible height setting of the seat.

[0016] The cover area of ​​the region can be defined by a standard seating area, which is defined as an area within which the hip measurements of an average surgeon, projected onto the standard seating area, at least lie. For example, the standard seating area can be defined as a square with a width and a length of at least substantially 0.4 m. If the standard seating area is defined as a circle, the diameter of the standard seating area can be at least substantially 0.4 m.

[0017] The footprint of the area may be defined by a unit footprint, which is defined as an area within which the shoulder measurements of an average operator, projected onto the unit footprint, lie. For example, the unit footprint may have a width of at least substantially 0.6 m and a length of at least substantially 0.4 m if the unit footprint is defined as a rectangle. If the unit footprint is defined as a circle , the diameter of the standard standing area may be at least substantially 0.6 m. Between the base of the truncated pyramid and the front of the platform there is in particular a step for the surgeon, on which the surgeon can at least partially place his feet.

[0018] The actuating unit is preferably designed to switch an operating mode of the upper body holding device and / or the base column when actuated. For example, the base column and / or the upper body holding device can initially be in an operating mode in which the settings of the base column and / or the upper body holding device are locked. When the actuating unit is actuated, it can switch the operating mode of the base column and / or the upper body holding device to an operating mode in which the base column or the length of the traction means of the upper body holding device is movable, i.e. not locked, whereby the device can be adjusted by the surgeon. When actuated again, for example, the actuating unit can set the operating mode of the base column and / or the upper body holding device back to a locked state.

[0019] Preferably, the platform has a front side facing an operating area during an operation, with the actuating unit arranged facing the front side. This allows the surgeon to more easily reach the actuating unit with his heel or sole of his foot.

[0020] On the upper side of the platform, in particular between the base column and the front of the platform At least one step surface is provided for the surgeon's feet. The step surface can, for example, be at least partially flat. The surgeon can rest or set down his feet on the step surface during the operation.

[0021] It is preferred that the actuating unit has at least one actuating element with an actuating surface, wherein the actuating element is movable between a first position and a second position and is resiliently held in the first position. The actuating surface can be at least partially flat and / or at least partially concave. The actuating direction in which the actuating elements are movable from the first position into the second position is preferably at least substantially horizontal. In particular, the actuating unit defines an actuating pivot axis about which the actuating element can be pivoted to actuate the actuating unit, wherein the actuating pivot axis runs at least substantially parallel to the surface of the platform.The actuating pivot axis is preferably arranged below the surface of the platform, whereby the actuating unit is triggered regardless of the height at which the operator touches or hits the actuating element with his foot when stepping back. The first position of the actuating element is preferably arranged closer to the tread surface than the second position of the actuating element.

[0022] Preferably, the actuating unit is designed to send a switching signal to a control device of the base column and / or the upper body support device. when the actuating element is in the second position.

[0023] In particular, the actuating surface of the actuating element is arranged at a predetermined angle relative to the tread. The predetermined angle between the actuating surface and the tread can be, for example, between 100° and 45°, in particular between 95° and 50°, preferably between 90° and 60°, particularly preferably at least substantially 90°. Arranging the actuating surface vertically relative to the tread can make it easier for the surgeon to reach the actuating unit with their foot, for example, with their heel or sole.

[0024] It is preferred that the adjustable base column be designed to be at least laterally pivotable about a pivot axis. Preferably, the base column is designed to be height-adjustable.

[0025] Preferably, the actuating surface of the actuating unit is at least substantially rectangular. This is the simplest possible design of the actuating surface. The height-to-width ratio of the actuating surface is in particular greater than 2:1, preferably greater than 3:1, and particularly preferably greater than 4:1. In particular, the area of ​​the actuating surface is 0.06 m 2 or more, in particular 0.07 m 2 or more. The operating surface is designed to be as large as possible, allowing the surgeon to easily reach it with their foot.

[0026] In an alternative embodiment, the actuating unit is attached to the base column or integrated into the base column. The base column and thus also the actuating unit are arranged at least substantially below the seat surface but are still accessible to the surgeon's foot, preferably with the heel or the sole of the foot. The platform of the device can thus be designed exclusively as a standing surface for the surgeon's feet. The fixed arrangement of the actuating unit on the adjustable base column, the integration of the actuating unit in the adjustable base column can be additionally advantageous, since the actuating unit is always fixed in relation to the adjustable base column.When the base column is adjusted relative to the platform, for example, by swiveling the base column sideways and / or forward or backward, the position and / or orientation of the actuating unit with the base column also changes. This can further improve the usability of the actuating unit for the surgeon.

[0027] In this embodiment, the height above the platform in which the actuating unit is arranged is in particular one third of the height of the truncated pyramid or less, preferably one quarter of the height of the truncated pyramid or less, particularly preferably one fifth of the height of the truncated pyramid or less.

[0028] The actuating surface of the actuating unit is arranged in particular at a predetermined distance from the platform, wherein the distance is preferably greater than 0.05 m, in particular greater than 0.10 m, particularly preferably greater than less than 0.15 m. This makes the actuation unit particularly easy to operate with the foot, allowing the surgeon to trigger the actuation unit while maintaining balance, for example, even in highly inclined positions.

[0029] In a specific embodiment, the actuating unit comprises, in particular, at least two actuating elements, which are preferably arranged in the heel area of ​​the surgeon's right and left legs. The at least two actuating elements of the actuating unit are designed to be operable independently of one another.

[0030] Further details of advantageous developments or details of the invention can be found in the drawings, the description, and the claims. They show:

[0031] Figure 1 is a perspective view of a first embodiment of the device according to the invention for assisting the surgeon,

[0032] Figure 2 is a perspective view of a second embodiment of the device according to the invention for assisting the surgeon,

[0033] Figure 3 shows a detailed view of the actuating unit according to the first embodiment,

[0034] Figure 4 shows a detailed view of the actuating unit according to the second embodiment, as well as

[0035] Figure 5 shows a detailed view of the actuating unit according to a third embodiment. -li

[0036] Figure 1 shows a first exemplary embodiment of a device 1 for assisting a surgeon. The device 1 has a walkable platform 3, beneath which a traveling device 2 is arranged. The traveling device 2 can have at least three, for example, electrically driven rollers. At least one of the three electrically driven rollers can be rotatable about a vertical axis. In Figure 1, the traveling device 2 has four electrically driven rollers, although only two of the four rollers, 4a and 4b, are shown in Figure 1. In the traveling device 2 illustrated in Figure 1, at least two of the rollers are designed to be rotatable about a vertical axis. The device 1 can thus be moved into a desired position.

[0037] The device 1 also has a base column 5 extending at least substantially vertically from the platform 3. The base column 5 shown in Figure 1 is height-adjustable and designed to pivot laterally. The lateral pivoting occurs about a lateral pivot axis S, which is defined in a plane formed by the platform 3.

[0038] The device 1 from Figure 1 also has an upper body holding device 9. In the example shown in Figure 1, the upper body holding device 9 is fastened to the base column 5. Alternatively, the upper body holding device 9 can also be arranged separately on the platform 3, for example behind the base column 5. The upper body holding device 9 has a traction means Z, to the end 11 of which a harness 13 worn by the surgeon can be coupled and uncoupled. In the example shown in Figure 1 The harness 13 also has a back plate 12, to which suspension points for the harness 13 are attached. The back plate 12 of the harness 13 can also have a coupling connection, wherein the end 11 of the traction means Z has a connection such that the end 11 of the traction means Z can be detachably connected to the harness 13. The coupling connection of the harness 13 and the connection at the end 11 of the traction means Z are preferably designed to be complementary to one another.

[0039] The upper body holding device 9 shown in Figure 1 forms an abutment for the traction means Z, to which the upper body of the surgeon can be coupled. For this purpose, the upper body holding device 9 has, for example, an electrically driven winch, with which the traction means can be wound up and unwound. The upper body holding device 9 is preferably arranged behind the surgeon located in the device 1, so that the surgeon can lean his upper body forward, wherein the upper body of the surgeon is held in a certain position by the traction means. By controlling the length of the traction means, the angle of inclination for the surgeon at which he receives holding support can be set.

[0040] Furthermore, a seat 7 is attached to the base column 5, on which the operator can sit. In the example shown in Figure 1, a longitudinal beam 6 is attached to an upper end of the base column 5, which longitudinal beam extends from the base column 5 towards the front side 19 of the platform 3. The longitudinal beam can be arranged at least substantially horizontally. The seat 7 is arranged at the front end of the longitudinal beam 6, on which the surgeon can take a seat.

[0041] The device 1 has an actuating unit 15 which is arranged in an area B between the seat 7 and the platform 3 and is arranged perpendicularly relative to the surface of the platform 3. The area B extends below the seat 7 from the seat 7 to the platform 3, with the area B always running behind the step area 17. The area B, in which the actuating unit 15 can be arranged, is a truncated pyramid with a square top surface 30 and a rectangular base surface 29, the centers M29, M30 of which are positioned vertically one above the other. The top surface is defined by a standard seating surface and the base surface is defined by a standard standing surface.

[0042] In the example shown in Figure 1, the actuating unit 15 has two actuating elements 21a and 21b. Each of the actuating elements 21a and 21b has an actuating surface 23a and 23b. The actuating surfaces 23a, 23b are designed to be large. The length of the actuating surfaces 23a, 23b can, for example, correspond to at least half, one-third, or one-quarter of the height of the area B. A surgeon sitting on the seat 7 can thus reach the actuating surfaces 23a and 23b with his foot.

[0043] The platform 3 has a front side 19 and a back side 20 , the front side 19 being the side facing the operating area during the operation. The base column 5 is arranged between the front side 19 and the back side 20 of the platform 3. The base column 5 can, for example, at least substantially be mounted centrally in the platform. Between the front 19 and the base column 5, a step surface 17 is formed on the upper side of the platform 3. The surgeon can step onto this step when entering the platform and place his feet on it after taking a seat. The step surface 17 offers the surgeon a certain amount of support, which is necessary if the surgeon wishes to change the height of the base column or pivot the base column 5 sideways, for example.

[0044] In the example shown in Figure 1, the actuating element 21a is assigned to the right leg of the surgeon, and the actuating element 21b is assigned to the left leg of the surgeon. Furthermore, further actuating elements can be provided in the actuating unit 15.

[0045] The actuating unit 15 is communicatively connected to a control device 8. A signal line 24 connects the actuating unit 15 to the control device 8. Upon actuation of one of the actuating surfaces 23a, 23b, the actuating unit 15 sends a switching signal to the control device 8. The control device 8 is also communicatively connected to the adjustable base column 5 and the upper body support device 9. The connection between the control device 8 and the base column 5 as well as the upper body support device 9 can be implemented individually, for example, via the signal lines 25 and 26. Alternatively, communication can also take place via a bus system.

[0046] In Figure 1, two additional support surfaces are shown 18a and 18b are attached to the front side 19 of the platform 3. The additional support surfaces 18a and 18b can be used as support surfaces for any foot pedals of instruments. This leaves the tread 17 free of foot pedals, so there is no risk of tripping for the surgeon.

[0047] Figure 2 shows a second exemplary embodiment of the device 1. The second exemplary embodiment differs from the first exemplary embodiment in that the actuating unit 15 for controlling the base column 5 and / or the upper body holding device 9 is fastened to the base column 5 or integrated therein. In the device 1 shown in Figure 2, the actuating unit 15 is fastened to the base column 5. The actuating unit 15 is arranged at a predetermined distance D from the platform 3. Alternatively, the actuating unit 15 can also be integrated into the base column 5. The actuating unit 15 is arranged in an area B between the seat 7 and the platform 3 and is fastened to the base column 5 by means of a fastening element 31. The area B extends below the seat 7 from the seat up to the platform 3, with the area B always running behind the step area 17.The area B, in which the actuating unit 15 can be arranged, is a truncated pyramid with a square top surface 30 and a rectangular base surface 29, whose centers are positioned vertically one above the other. The top surface is defined by a standard seating surface, and the base surface is defined by a standard standing surface. The height above the platform 3, in which the actuating unit 15 is positioned, is approximately a quarter of the height of the truncated pyramid in the example shown in Figure 1.

[0048] By attaching the actuating unit 15 to the base column 5 or integrating the actuating unit 15 into the base column 5, the actuating unit 15 always remains in a certain fixed relationship to the surgeon's own position, even under significant swivel angles or significantly variable height settings of the base column 5. This makes it easier for the surgeon to find the actuating unit with his or her foot without being forced to look to see where the actuating unit 15 is currently located.

[0049] Figure 3 illustrates an example of the actuating unit 15 in cross-section. In this example, the actuating unit 15 is attached to the platform 3 and oriented at least substantially perpendicular to the platform 3. On a side of the actuating unit 15 facing the front side 19 of the platform 3, there is an actuating element 21a, 21b, which is resiliently held in a first position PI.

[0050] The actuating element 21a, 21b can be moved from the first position P1 to a second position P2 against the spring force of a spring element 28. The spring element 28 can define the pressure with which the actuating element 21a, 21b is to be actuated. The spring element 28 can be a compression spring, for example, designed as a non-linear spring. The first position P1 of the actuating element 21a, 21b is determined by a stop surface 27 provided in a housing 16 of the actuating element 15. The actuating element 21a, 21b has an actuating surface 23a, 23b against which the surgeon can press during actuation. The actuating element 21a, 21b is provided with at least one hinge 32 which defines an actuating axis X about which the actuating element 21a, 21b can be pivoted. In the example shown, the actuating axis X is arranged at a lower end of the actuating element 21a, 21b. The actuating axis X runs at least substantially parallel to the surface 33 of the platform 3. However, the hinge 32 can also be arranged at a right, left or upper end of the actuating element 21a, 21b. In the example shown in Figure 3, the hinge 32 which defines the actuating axis X is accommodated below the surface 33 of the platform 3 in a recess 34 and fastened to the platform 3. This can prevent the operator from accidentally hitting the hinge 32 with his foot instead of the actuating surface 23a, 23b, whereby the actuating unit 15 does not trigger.In Figure 3, a protective element 35 is also attached to the surface 33 of the platform 3 below the actuating surface 23a, 23b. The protective element 35 separates the actuating unit 15 from the tread area 17.

[0051] In the example shown in Figure 3, the actuating surface 23a, 23b is arranged approximately orthogonally to the tread surface 17. The angle α between the tread surface 17 and the actuating surface 23a, 23b is approximately 90° when the actuating element 21a, 21b is in the first position PI.

[0052] A switch element 10 is arranged within the actuating unit 15. The switch element 10 is fastened to the platform 3 by a positioning element 22. The switch element 10 has an actuating pin 14 which is arranged on a rear side of the actuating element 21a, 21b. When the actuating element 21a, 21b is pushed into the second position P2, the actuating pin 14 is pressed into the switch element 10. The switch element 10 is connected to the control device 8 via the signal line 24. When the actuating element 21a, 21b is in the second position P2, a switching signal is sent by the switch element 10 to the control device 8. The control device 8 is communicatively connected to the base column 5 and the upper body support device 9 via the signal line 25, 26.

[0053] Unlike what is illustrated in Figure 3, the spring element 28 can also be arranged within the switch element 10.

[0054] Figure 4 shows a further example of the actuating unit 15 in cross-section. The embodiment shown in Figure 3 corresponds to the example in Figure 3 with reference to the reference numerals, but the actuating unit 15 is attached to the base column 15.

[0055] Figure 5 shows a further example of the actuating unit 15 in cross-section. In this example, the actuating unit 15 is integrated into the base column 5. This means that the actuating unit 15 does not have a separate housing. Rather, the actuating unit 15 is housed in the housing 29 of the base column 5.

[0056] The features shown in Figures 3 to 5 can be combined.

[0057] The device according to the invention serves to assist a surgeon. The device 1 has a mobile platform 3, a base column 5 projecting from the platform 3 with a seat 7, an upper body holding device 9, and at least one actuating unit 15. The actuating unit 15 is arranged in an area B between a seating surface of the seat 7 and the platform 3 in such a way that the actuating unit 15 can be reached by the surgeon with his foot, so that a surgeon sitting on the seat 7 of the device 1 can easily reach the actuating unit with his foot, in particular with his heel or the sole of his foot, if possible from any position. Reference symbol: 1 facility 2 Driving device 3 Platform 4a, b, c electrically driven rollers 5 Basic pillar 6 longitudinal members 7 seats 8 Control device 9 Upper body support device 10 switch element 11 one end of the traction device 12 Back plate of the harness 13 Harness 14 Actuating pin 15 Actuating element 16 Housing of the actuating element 17 Tread surface 18a, b On surface 19 Front of the platform 20 Back of the platform 21a, b Actuating element 22 Positioning element 23a, b Actuating surface 24 Signal line from operating unit to control device 25 Signal line from control unit to base column 26 Signal line from control device to upper body support device 27 Stop for the actuating element 28 spring element 29 floor space 30 deck area 31 Fastening element 32 Hinge 33 Surface of the platform 34 Recess in the platform B area D Distance between operating unit and platform H Main axis of the base column PI first position P2 second position S swivel axis X Actuating pivot axis Z Traction means a Angle between actuating surface and tread

Claims

Patent claims:

1. Device (1) for assisting a surgeon, comprising a platform (3) from which projects an adjustable base column (5) with a seat (7) for the surgeon attached thereto, and an upper body holding device (9) with at least one traction means (Z), to the end (11) of which a harness (13) worn by the surgeon can be coupled and uncoupled, wherein at least one actuating unit (15) for controlling the base column (5) and / or the upper body holding device (9) is arranged in an area (B) between a seat surface of the seat (7) and the platform (3) in such a way that the actuating unit (15) can be reached by the surgeon with his foot.

2. Device (1) according to claim 1, characterized in that the region (B) is truncated pyramid-shaped with a cover surface (30) defined at the level of the seat (7) and a base surface (29) defined at the level of the platform (3), the centers (M29, M30) of which are preferably arranged vertically one above the other.

3. Device (1) according to claim 1 or 2, characterized in that the actuating unit (15) is arranged at least substantially perpendicular to the platform (3).

4. Device (1) according to one of the preceding claims, characterized in that the platform (3) has at least one front side (19) which faces an operating area during an operation, wherein the actuating unit (15) of the Front side (19) is arranged facing. Device (1) according to claim 4, characterized in that at least one tread (17) for a foot of the surgeon is provided on an upper side of the platform (3) between the actuating unit (15) and the front side (19) of the platform (3). Device (1) according to one of the preceding claims, characterized in that the actuating unit (15) has at least one actuating element (21a, 21b) with an actuating surface (23a, 23b) which is movable between a first position (P1) and a second position (P2), wherein the actuating element (21a, 21b) is resiliently held in the first position.Device (1) according to one of the preceding claims, characterized in that the actuating unit (15) defines an actuating pivot axis (X) about which the actuating element (21) is pivotable, wherein the actuating pivot axis (X) runs at least substantially parallel to the surface of the platform (3). Device (1) according to claim 7, characterized in that the actuating pivot axis (X) is arranged below the surface of the platform (3). Device (1) according to claims 5 and 6, characterized in that the first position (P1) is arranged closer to the tread surface (17) than the second position (P2). Device (1) according to one of the preceding claims, characterized in that the actuating unit (15) is configured to switch an operating mode of the base column (5) and / or the upper body support device (9) upon actuation. Device (1) according to one of claims 5 to 9, characterized in that the actuating unit (15) is configured to send a switching signal to a control device (8) of the base column (5) and / or the upper body support device (9) when the actuating element (21a, 21b) is in the second position (P2). Device (1) according to one of the preceding claims, in particular according to claim 6, characterized in that the actuating surface (23a, 23b) of the actuating element (21) is arranged at a predetermined angle (α) relative to the tread surface (17).Device (1) according to one of the preceding claims, in particular according to claim 9, characterized in that the predetermined angle between the actuating surface (23a, 23b) and the tread surface (17) is between 100° and 45°, in particular between 95° and 50°, preferably between 90° and 60°. Device (1) according to one of the preceding claims, characterized in that the base column (5) is designed to be laterally pivotable about a pivot axis (S). Device (1) according to one of the preceding claims, characterized in that the actuating unit (15) is attached to the base column (5) or is integrated into the base column (5). Device (1) according to one of the preceding claims, in particular according to claim 6, characterized in that the actuating surface (23) is at least substantially rectangular, wherein a height-to-width ratio of the actuating surface (23) is preferably greater than 2:1, preferably greater than 3:1, particularly preferably greater than 4:

1. Device (1) according to one of the preceding claims, in particular according to claim 6, characterized in that the actuating surface (23) has an area of ​​0.06 m 2 or more, preferably 0.07 m 2 or more.

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