Operating chair for assisting a surgeon

Abstract

The operating chair (11) according to the invention with a tip prevention device (17) is used to assist the surgeon over the largest possible movement range (B2). The operating chair (11) has a platform (12) which can be placed on the floor and from which a column (13) having a pivot device (14) extends at least substantially vertically, wherein the pivot device (14) is designed to pivot the column (13) about at least one axis (18) relative to the platform (12). The operating chair (11) furthermore has a seat (15) which is attached to the column (13) and on which the surgeon can sit. The column (13) can also have a height adjustment device (29) by means of which the height of the seat (15) above the platform (12) can be adjusted. The tip prevention device (17) is designed to change a base surface (19) of the operating chair (18).

Description

Operating chair to assist a surgeon

[0001] The invention relates to an operating chair for supporting a surgeon, which is designed to support the surgeon, in particular during an operation, such as a surgical procedure.

[0002] Operating chairs are generally known and serve to support the surgeon, who normally stands at the operating table, in such a way that the sometimes long-lasting operations in constrained postures or operations with special demands on the surgeon's fine motor skills can be carried out with little or no fatigue and, ideally, are performed in a reliable and high-quality manner.

[0003] For example, DE 10 2020 103 861 B3 of fenbart describes an operating chair designed to assist a surgeon. This operating chair has a seat supported by a height-adjustable column, the column resting on a joint mechanism that defines two tilt axes for the column and is associated with a locking device to secure manually set tilt positions, thus ensuring the column maintains a desired tilt position. The column extends from a mobile, walkable platform that defines the base of the operating chair. The dimensions of the platform- The platform is designed to provide the largest possible base area, allowing for the widest possible tilt range within which the column can be safely inclined. The stability of the operating chair is of paramount importance, as the surgeon holds instruments such as scalpels during the operation, which can pose a risk to the health of both the patient and the surgeon if the chair is unstable. However, the space available for the operating chair in the operating area, such as the operating room, is quite limited, which necessitates keeping the platform's footprint as compact as possible. This, however, restricts the possible range of motion, for example, in terms of tilt and / or column height, within which the operating chair can provide secure support for the surgeon.

[0004] Based on this, the object of the invention is to provide an improved operating chair for a surgeon that offers a large range of motion for the surgeon, in which he is securely held by the operating chair.

[0005] This problem is solved with the operating chair to assist a surgeon according to claim 1:

[0006] The operating chair according to the invention has a mobile and floor-standing platform from which a column with a swiveling device extends at least substantially vertically, wherein the swiveling device is configured to rotate the column by at least The operating chair has an axis that can be pivoted relative to the platform. It also has a seat attached to the column, on which the surgeon can sit. The column preferably also has a height adjustment mechanism with which the height of the seat above the platform can be adjusted. The operating chair also has an anti-tip device designed to prevent any changes to the chair's base.

[0007] The anti-tip device allows the base of the operating chair to be increased, particularly when the chair is positioned in a desired location within the operating area. This enables the swivel mechanism to safely adjust the column to larger tilt positions without the chair becoming unstable and tipping over.

[0008] A special feature of the operating chair according to the invention is that the base of the operating chair can be enlarged or reduced as needed by means of the anti-tip device. For example, the base of the operating chair can be enlarged using the anti-tip device when the operating chair is in the desired position in the operating area. For transport, the base of the operating chair can be reduced again, for example, so that the operating chair can be brought into the most compact state possible, in which it can be transported as easily as possible through doorways and / or corridors in the hospital.

[0009] Underneath the base of the operating chair is In particular, an area is understood to be stretched perpendicularly onto the floor from the outer points of the operating chair.

[0010] Preferably, the operating chair also has an upper body support device to assist the surgeon's upper body. The upper body support device is, in particular, attached to an upper end of the column. Alternatively, the upper body support device can be attached to the platform. The upper body support device not only assists the surgeon by allowing them to sit on the operating chair, but also supports the surgeon's upper body.

[0011] In its simplest form, the upper body support device can be a backrest. However, it is preferred that the upper body support device be configured to restrain the surgeon's upper body with a traction device, the surgeon wearing a harness which can be detachably coupled to a free end of the traction device. For example, the upper body support device has a support column on which a free end of the traction device is provided at an adjustable height. The support column is preferably located behind the surgeon seated on the operating chair. The other end of the traction device can, for example, be wound up and unwound by an electrically operated winch, so that the length of the traction device provided outside the upper body support device is adjustable. A support angle for the surgeon's upper body can be set via the length of the traction device. The support angle is preferred The position is continuously adjustable. For example, the support column of the upper body support device can be attached to an upper end of the column.

[0012] In particular, the anti-tip device comprises at least one support unit with a support that can be extended and retracted along an extension axis, thereby allowing the base area of ​​the operating chair to be changed. Preferably, the anti-tip device comprises two or more extendable and retractable support units, allowing the base area to be changed. The anti-tip device is preferably housed within the platform, with the extendable and retractable supports extending beyond the edge of the platform when extended. The support units can, for example, be arranged such that they can be extended laterally. This increases the base area of ​​the operating chair in the lateral direction, so that a larger range of motion can be provided for the column's pivoting mechanism when the supports of the support unit are extended than when the supports of the support unit are retracted.If the column is additionally designed to be height-adjustable by means of a height adjustment device, a larger range of movement for the height adjustment device can be made available when the supports of the support unit are extended than when the supports of the support unit are retracted. It is preferred that the supports extend without the use of an electric motor, for example by spring force.

[0013] Preferably, a support foot is attached to one end of the support. The support foot ensures that the support rests securely on the ground and simultaneously to serve as an actuating element to extend the support.

[0014] In particular, the end region of the support is positioned further away from a side surface of the platform when extended than when retracted. Extending the support thus increases the base area of ​​the operating chair. It is preferred that the end regions of the supports, when extended, define a base area of ​​the operating chair that is larger than the base area of ​​the operating chair when retracted.

[0015] The support is arranged such that its extension axis has a predetermined angle of depression relative to a surface of the platform. The extension axis of the support points towards the ground in the direction of extension, allowing the support base to be smaller. Alternatively, the support can be extended, in particular, at least substantially parallel to the surface of the platform.

[0016] Preferably, the support foot of the support is positioned at a distance from the floor when extended. This ensures that the support can be fully extended without the support foot prematurely touching the floor. Furthermore, this allows the operating chair to continue moving without the supports dragging on the floor during movement. The platform can also include a height adjustment mechanism that allows the platform to be raised and lowered, thus changing its height above the floor.

[0017] Preferably, the support foot is plate-shaped with an actuating surface and a support surface, the actuating surface being larger than the support surface. The actuating surface is preferably arranged at least substantially flush with the side surface of the platform when the support is retracted. The actuating surface is designed to be as large as possible so that the support units can be extended and retracted by foot. For example, the supports can be extended when retracted by a person pressing their foot, for example the toe, against the actuating surface, so that the supports, driven for example by a spring, are moved from the retracted to the extended position.

[0018] In particular, the support leg is in a first position when the support is retracted and in a second position when the support is extended. Preferably, the first position is located closer to the center of gravity of the operating chair than the second position.

[0019] Preferably, the support leg can be manually moved from the first position to a third position, with the support unit being configured to move the support leg back to the second position when it has been manually moved to the third position. For this purpose, the support unit can, for example, include a spring that pushes the support leg towards the second position. The first, second, and third positions of the support leg are preferably arranged on the extension axis. The first position is located between the second and third positions.

[0020] It is preferred that the column also has a height adjustment device designed to adjust the height of the column and thus of the seat above the platform.

[0021] In a particularly preferred embodiment, the operating chair further comprises a control device which is configured to specify a first range of movement for the swivel device and / or the height adjustment device and / or the upper body support device, within which these are movable.

[0022] Preferably, the support unit has at least one sensor element configured to detect whether the support is in the extended state. The sensor element can also be configured to detect whether the support is in the retracted state. Furthermore, the support unit can have additional sensor elements that enable it to detect whether the support is in the retracted state.

[0023] In particular, the sensor element is communicatively connected to the control device, wherein the control device is configured to specify a second range of movement to the swivel device and / or the height adjustment device and / or the upper body support device when the support is in the extended state, wherein the second range of movement is greater than the first range of movement.

[0024] Alternatively, the control unit can be used to The device is designed to deactivate the movement of one or more adjustment devices, such as the swivel device and / or the height adjustment device and / or the upper body support device, when the support unit is in the retracted position. For example, the swivel device can be switched to a non-movable mode by the control device when the anti-tip device is in the retracted position.

[0025] Further details of advantageous embodiments or specific aspects of the invention will become apparent from the drawings, the description, and the dependent claims. These show:

[0026] Figure 1 shows a perspective view of the operating chair according to the invention to support the surgeon.

[0027] Figure 2 shows a schematic cross-section of the anti-tip device in the retracted state,

[0028] Figure 3 shows a schematic cross-section of the tilt protection device in the actuated state,

[0029] Figure 4 shows a schematic cross-section of the tilt protection device in the extended state, as well as

[0030] Figure 5 shows a schematic top view of the operating chair.

[0031] Figure 1 shows a perspective view of an exemplary embodiment of the operating chair 11. The operating- The chair 11 has a movable platform 12 which can be moved in at least two directions by means of a drive mechanism 35. The drive mechanism 35 can have at least three, preferably four, electrically driven casters 34a, 34b, of which only two are shown in Figure 1. The platform also has a platform height adjustment device with which the height of the platform above the floor can be changed.

[0032] The operating chair 11 has a front 32 and a back 33, between which the base body of the platform 12 extends. The operating chair can be positioned for surgery such that the front 32 of the platform 12 faces the operating area. The platform 12 has a surface 26 that is at least substantially flat, as well as two side surfaces 25a and 25b.

[0033] A column 13 extends at least substantially vertically from the surface 26 of the platform 12. The column 13 can be tilted laterally about an axis 18 by means of a pivoting device 14. The column can also be equipped with a further pivoting device, which, for example, makes it possible to tilt the column forwards and backwards about another axis, which is arranged, for example, orthogonally to the first axis.

[0034] The column 13 also houses a height adjustment device 29, with which the height of the column 13 and thus of the seat 15 attached to the column 13 above the platform 12 can be adjusted.

[0035] A first longitudinal beam 37 is arranged on the upper side of the column 13, extending from the column 13 to the front 32 of the operating chair 11. The seat 15, on which the surgeon can sit during the operation, is attached to one end of the first longitudinal beam 37. The seat 15 can be tilted forwards and backwards by means of a tilting device 39. A second longitudinal beam 40 is also arranged at the upper end of the column 13, extending from the column 13 toward the rear 33 of the platform 12. A control unit 41 is arranged at the end of the second longitudinal beam 40, which can be used, for example, to control the drive mechanism 35 and / or the platform height adjustment device.

[0036] Above column 13 extends the upper body support device 16, which holds the surgeon's upper body at a specific angle of inclination. The upper body support device 16 has a support column 42 on which a height-adjustable pulley 43 is arranged. The pulley 43 guides the traction element Z of the upper body support device 16. A harness 38, worn by the surgeon, can be detachably coupled to the upper body support device at a free end 36 of the traction element Z. The angle of inclination at which the surgeon's upper body is held can thus be adjusted via the length of the traction element Z.

[0037] The operating chair 11 has a tilt protection device 17, which is configured to modify a base surface 19 of the operating chair 11. In the example shown in Figure 1, the tilt protection device 17 has a first support unit 21a and a second support unit. 21b. The first and second support units 21a and 21b are located on the front 32 of the operating chair 11 in the platform 12. The support units 21a, 21b each have a retractable support 22a and 22b, which are movable along extension axes 20a, 20b. The extension axes 20a and 20b each extend laterally from the platform 12.

[0038] At each end section 23a and 23b of the supports 22a and 22b, support feet 24a and 24b are attached to the supports 22a and 22b.

[0039] In addition, the anti-tip device can have 17 further support units, which can be located, for example, on the rear 33 of the operating chair 11 in the platform 12.

[0040] The support units 21a and 21b shown in Figure 1 are in an extended position, in which the supports 22a and 22b are extended. The base area 19 of the operating chair 11 is larger than when one or both of the support units 21a, 21b are in the retracted position. The support units 21a and 21b can be moved independently into an extended or retracted position.

[0041] The base area 19 is spanned by the corners of the platform at the rear 33 and the support feet 24a and 24b. When the support units 21a and 21b are in the retracted position, the base area 19 of the operating chair 11 is spanned by the corners of the platform 12.

[0042] Figure 2 shows a schematic cross-section of the anti-tip device 17 with the two support units 21a and 21b from Figure 1. The extendable and retractable supports 22a and 22b are both shown in a retracted position in Figure 2. The support feet 24a and 24b are arranged in a first position PI in Figure 2. The support feet 24a and 24b each have an actuating surface 27a and 27b, respectively, and a support surface 28a and 28b, respectively, with the actuating surfaces 27a and 27b being flush with the side surfaces 25a and 25b of the platform 12 in the first position PI. The supports 22a and 22b are held resiliently in the first position PI when retracted. To extend the supports 22a and 22b, the support feet 24a, 24b can be manually pushed into a third position P3 against a spring force along the extension axes 20a and 20b.

[0043] Figure 3 shows the schematic cross-section of the anti-tip device 17 from Figure 2, except that the support feet 24a and 24b are arranged in the third position in Figure 3. The support units 21a and 21b are designed to push the supports 22a, 22b along the extension axes 20a and 20b into a second position P2 when the support feet have been moved into the third position P3.

[0044] Figure 4 shows the anti-tip device 17 from Figures 2 and 3, with the support legs 24a, 24b arranged in the second position P2. The supports 22a, 22b are shown in an extended state in Figure 4. From the extended state, the supports 22a, 22b can be returned to the retracted state by moving the support legs 24a, 24b to the third position P3. The first position PI is passed over by the support legs 24a, 24b, and the supports 22a, 22b are held in the first position PI by a locking device, whereby the spring force of the spring continues in the extension direction of the supports 22a, 22b. However, the locking device prevents the support legs 24a, 24b from passing over the first position PI.

[0045] In the example of the anti-tip device 17 shown in Figures 2 to 4, the extension axes 20a and 20b are arranged at an angle to the surface 26 of the platform 12. The support units 21a and 21b shown also each have at least one sensor element 31a, 31b, which are configured to detect whether the respective support unit 21a, 21b is in an extended or retracted state. The sensor elements 31a and 31b are communicatively connected to a control unit 30. The control unit 30 can be communicatively connected to the swivel device 14, the height adjustment device 29, and the upper body support device 16.

[0046] The control unit 30 is configured to define a first movement range Bl and a second movement range B2 for the swiveling device 14 and / or the height adjustment device 29 and / or the upper body support device 16, within which the swiveling device 14 and / or the height adjustment device 29 and / or the upper body support device 16 are movable. The control unit 30 can define the first movement range if at least one of the supports 22a, 22b is in a retracted state, and the second movement range B2 if both supports 22a, 22b are in an extended state. are . The second range of motion B2 is larger than the first range of motion Bl . Alternatively, for example, the swiveling device 14 can also be brought into an immobile mode by the control device 30 when the two supports 22a, 22b are in a retracted state .

[0047] Figure 5 shows a schematic top view of the operating chair 11 from Figures 1 to 4. In the example shown in Figure 5, the extendable and retractable supports 22a, 22b are extended, thus increasing the base area 19 of the operating chair 11 beyond the boundaries of the platform 12. Figure 5 also shows the first movement range Bl and the second movement range B2, with the second movement range B2 completely enclosing the first movement range Bl.

[0048] The operating chair 11 described above works as follows:

[0049] The operating chair 11 can be transported to a desired position with the support units 21a, 21b of the anti-tilt device 17 in a retracted state. The base 19 of the operating chair 11 is defined by the platform 12. In the retracted state, the at least one adjustment device, for example the swivel device 14, of the operating chair 11 can only be moved within a limited range of motion Bl. For example, the swivel device 14 can also be moved into a fixed position by the control device 30 when the anti-tilt device 17 is in a retracted state. Once the operating chair 11 is positioned at a desired location, the The support units 21a, 21b of the anti-tip device 17 are moved into an extended position. The extension of the supports 22a, 22b can be triggered by pressing the foot against the actuating surface 27a, 27b, whereupon the supports 22a, 22b are pushed outwards towards the extension axes 20a, 20b, for example by a spring. The support units 21a, 21b can be extended independently of each other.

[0050] The operating chair 11 according to the invention, with a tilt protection device 17, serves to support the surgeon with the largest possible range of motion B2. The operating chair 11 has a platform 12 that can be placed on the floor, from which a column 13 with a pivoting device 14 extends at least substantially vertically, the pivoting device 14 being configured to pivot the column 13 about at least one axis 18 relative to the platform 12. The operating chair 11 also has a seat 15 attached to the column 13, on which the surgeon can sit. The column 13 can also have a height adjustment device 29 with which the height of the seat 15 above the platform 12 can be adjusted. The tilt protection device 17 is configured to change a base 19 of the operating chair 18. Reference symbol: 11 Operating Chair 12 platforms 13th pillar 14 Swivel device 15 seats 16 Upper body support device 17 Tilt protection device 18 axle 19 Footprint of the operating chair 20a, b From driving axis 21a, b Support unit 22a, b extendable and retractable support 23a, b End area of ​​the support 24a, b Support foot 25a, b Side surface of the platform 26 Platform surface 27a, b Actuation area 28a, b Support surface 29 Height adjustment device of the column 30 Control unit 31a, b Sensor element 32 Front of the operating chair 33 Back of the operating chair 34a, b Rollers of the driving device 35 Driving equipment 36 free end of the traction element 37 first longitudinal beam 38 operator-portable harness 39 Tilt device 40 second longitudinal beam 41 Control unit 42 Support column of the upper body support device B1 first movement area B2 second movement area PI first position P2 second position P3 third position

Claims

Patent claims:

1. Operating chair (11) for assisting a surgeon, comprising a mobile platform (12) from which a column (13) with a pivoting device (14) extends at least substantially vertically, the pivoting device (14) being configured to pivot the column (13) about at least one axis (18) relative to the platform (12); a seat (15) for the surgeon attached to the column (13); and an anti-tip device (17) configured to change a standing surface (19) of the operating chair (11).

2. Operating chair (11) according to claim 1, characterized in that the operating chair (11) further comprises an upper body holding device (16) for supporting the upper body of the surgeon, which is preferably attached to the column (13).

3. Operating chair (11) according to claim 1 or 2, characterized in that the anti-tilt device (17) has at least one support unit (21a, 21b) with a support (22a, 22b) that can be extended and retracted along an extension axis (20a, 20b).

4. Operating chair (11) according to one of the preceding claims, characterized in that a support foot (24a, 24b) is attached in an end region (23a, 23b) of the support (22a, 22b). Operating chair (11) according to claim 4, characterized in that the end region (23a, 23b) of the support (22a, 22b) in the extended state is arranged further away from a side surface (25a, 25b) of the platform (12) than in the retracted state. Operating chair (11) according to claim 4 or 5, characterized in that the end regions (23a, 23b) of the supports (22a, 22b) in the extended state define a standing surface (19) of the operating chair (11) which is larger than a standing surface of the operating chair (11) is in the retracted state. Operating chair (11) according to one of claims 4 to 6, characterized in that the support (22a, 22b) is arranged such that the extension axis (20a, 20b) relative to a surface (26) of the platform (12) has a predetermined depth angle (t). Operating chair (11) according to one of claims 4 to 6, characterized in that the support (22a, 22b) is at least substantially parallel to a surface (26) of the platform (12). Operating chair (11) according to one of claims 4 to 8, characterized in that the support foot (24a, 24b) of the support (22a, 22b) is arranged at a distance from the floor in the extended state. Operating chair (11) according to one of claims 4 to 9, characterized in that the support foot (24a, 24b) is plate-shaped with an actuating surface (27a, 27b) and a supporting surface (28a, 28b), wherein the actuating surface (27a, 27b) is larger than the supporting surface. Operating chair (11) according to claim 10, characterized in that the actuating surface (27a, 27b) is arranged at least substantially flush with the side surface (25a, 25b) of the platform (12) in the retracted state of the support (22a, 22b). Operating chair (11) according to one of claims 4 to 11, characterized in that the support foot (24a, 24b) is located in a first position (P1) when the support (22a, 22b) is retracted and in a second position (P2) when the support (22a, 22b) is extended. Operating chair (11) according to one of claims 4 to 12, characterized in that the support foot (24a, 24b) is manually movable from the first position (P1) into a third position (P3), wherein the support unit (21a, 21b) is configured to move the support foot (24a, 24b) into the second position (P2) when the support foot (24a, 24b) has been manually moved into the third position (P3). Operating chair (11) according to one of the preceding claims, characterized in that the column (13) has a height adjustment device (29) configured to adjust a height of the column (13) above the platform (12). Operating chair (11) according to one of the preceding claims, characterized in that the operating chair (11) further comprises a control device (30) configured to predetermine a first range of motion (B1) for the pivoting device (14) and / or the height adjustment device (29), in which they are movable. Operating chair (11) according to one of the preceding claims, characterized in that the support unit (21a, 21b) has at least one sensor element (31a, 31b) which is designed to detect whether the support (22a, 22b) is in the extended state. Operating chair (11) according to claim 15 or 16, characterized in that the sensor element (31a, 31b) is communicatively connected to the control device (30), wherein the control device (30) is designed to predetermine a second range of movement (B2) for the pivoting device (14) and / or the height adjustment device (29) when the support (22a, 22b) is in the extended state, wherein the second range of movement (B2) is greater than the first range of movement (B1).

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