EP2962674B1 - Vorrichtung zur höhenverstellung eines operationstischs - Google Patents

Vorrichtung zur höhenverstellung eines operationstischs Download PDF

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Publication number
EP2962674B1
EP2962674B1 EP15171193.4A EP15171193A EP2962674B1 EP 2962674 B1 EP2962674 B1 EP 2962674B1 EP 15171193 A EP15171193 A EP 15171193A EP 2962674 B1 EP2962674 B1 EP 2962674B1
Authority
EP
European Patent Office
Prior art keywords
guide
axis
guide means
lifting
longitudinal axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP15171193.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2962674A1 (de
Inventor
Guido Koch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maquet GmbH
Original Assignee
Maquet GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maquet GmbH filed Critical Maquet GmbH
Priority to PL15171193T priority Critical patent/PL2962674T3/pl
Publication of EP2962674A1 publication Critical patent/EP2962674A1/de
Application granted granted Critical
Publication of EP2962674B1 publication Critical patent/EP2962674B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/02—Adjustable operating tables; Controls therefor
    • A61G13/06—Adjustable operating tables; Controls therefor raising or lowering of the whole table surface
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/10—Parts, details or accessories
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/02—Adjustable operating tables; Controls therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/02—Adjustable operating tables; Controls therefor
    • A61G13/04—Adjustable operating tables; Controls therefor tiltable around transverse or longitudinal axis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G13/00—Operating tables; Auxiliary appliances therefor
    • A61G13/02—Adjustable operating tables; Controls therefor
    • A61G13/08—Adjustable operating tables; Controls therefor the table being divided into different adjustable sections
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/012—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame raising or lowering of the whole mattress frame

Definitions

  • the invention relates to a device for height adjustment of an operating table, with a relative to a chassis of the operating table movable lifting. Furthermore, it relates to an operating table with such a device for height adjustment of a patient support surface, wherein the patient support surface is connected to a column head of the operating table and in which the height of the column head is changeable by means of the lifting carriage.
  • the patient support surface Before and during surgery of a patient supported on a patient support surface of an operating table, the patient support surface is placed in a position that facilitates engagement with the patient. It may be necessary to pivot the patient support surface at large angles.
  • the height of the patient support surface of the operating table should be adjustable in as large a range as possible. Ideally, the operating table also allows very low heights of the patient support surface, which requires a space-saving design of the operating table column.
  • Inpatient operating tables have an operating table column fixedly connected to the floor of an operating room, where they usually have no operating table base and are powered by permanently installed cables.
  • the patient support surface is easily detachable and reconnectable in these operating tables and can be moved with a transport device provided for this purpose. With this transport device, a patient can be transported on the patient support surface to and from the operating room.
  • Movable operating tables have an operating table base connected to the operating table column, which allows free positioning in the operating room, and a patient support surface that can be detached and reconnected from the operating table column.
  • the operating table column is moved by means of a column transporter provided for this purpose or, in the case of self-mobile movable operating tables, by means of built-in, extendable transport rollers.
  • Mobile operating tables have rollers for operating the operating table, so that they can be moved without additional aids and are suitable for transporting a patient. Further, in mobile operating tables, the patient support surface is usually connected to the operating table column and is not released from the operating table column during hospital operation.
  • electromotically adjustable components may be provided, such as an electromotively variable operating table column for varying the height of a patient support surface disposed on the operating table column, a two-orthogonal axis operating table column head for varying the inclination and the canting of the patient support surface connected to the operating table column head and / or components of the patient support surface which can be adjusted by means of an electric motor.
  • the operating table when an operation on a patient, the operating table must also be stored stable and accurate. So he must be able to absorb externally applied forces and torques, which are caused by lateral forces or a change in position of the center of gravity of the patient and the patient support surface without yielding noticeably. On the other hand, he must be so precise that a height adjustment without tilting the height adjustment serving elements is possible.
  • sliding guides with round and not round cross sections are known.
  • a great manufacturing effort is needed.
  • a small clearance is necessary to achieve a high rigidity of the operating table.
  • a disadvantage of using a sliding guide with a round cross-section is that the sliding part on the guide can rotate about the longitudinal axis of the guide.
  • wedge pieces engaging in a groove can be provided, which are arranged on the sliding part or the guide and absorb torques about the longitudinal axis of the guide.
  • the production is expensive and expensive.
  • the distance of the rotation is limited to the radius of the round guide and requires large guide diameter to achieve the desired stiffness.
  • the sliding part on the round guides tends to jam under normal manufacturing and assembly tolerances.
  • US 2 059 130 A discloses a height-adjustable operating chair having the features of the preamble of claim 1.
  • the secondary guide and the main guide can be designed as easy-to-manufacture circular guides.
  • the problem described in the introduction of jamming or tilting of the lifting carriage with the round guides is avoided by allowing a compensating movement of the guide means.
  • the compensation movement compensates manufacturing and assembly tolerances.
  • the secondary guide has a guide function for the lifting.
  • a patient support surface can be coupled to the lifting carriage via further elements, such as a column head, so that a height adjustment of the patient support surface of the operating table takes place during a vertical movement of the lifting carriage.
  • the longitudinal axis of the secondary guide and the longitudinal axis of the main guide are parallel in the field of manufacturing tolerances and assembly tolerances.
  • the inventive solution is achieved in particular that the function of the device is not affected by parallelism deviations of the longitudinal axes of the main and secondary guide, which are unavoidable due to the tolerances common manufacturing methods.
  • the guide means is capable of compensating for positional changes of the second point of intersection as a result of the manufacturing and assembly tolerances.
  • the displacement by which the contact area of the guide means shifts in this case can have both a straight and a curved course. If the main guide is made in several parts or no natural definition of a longitudinal axis is possible, is understood by the longitudinal axis of the main guide, the guide axis along which the lifting is guided in a lifting movement of the lifting.
  • the position of the second point of intersection changes from a first position before the lifting movement of the lifting carriage to a second position after the lifting movement of the lifting carriage and if the contact area of the guide means in the compensating movement together with the secondary guide with a displacement of the second point of intersection is moved from the first position to the second position.
  • changes in the distance between the main guide and the sub guide are compensated by the distance between the two positions by the guide means.
  • the compensated by the compound of the guide means maximum tolerance to the parallelism of the main and the secondary guide and the resulting distance changes in the plane in the range of 0 mm to 3 mm, in particular 0 mm to 1 mm.
  • the trajectory follows a functional relationship between the X-axis and the Y-axis.
  • the trajectory thus results from the fact that each value on the X-axis is assigned exactly one value on the Y-axis.
  • the X-axis and the Y-axis are preferably axes of a two-dimensional Cartesian coordinate system, wherein the coordinate system is right-handed and the X-axis is such that the intersection of the longitudinal axis of the secondary guide with the plane has a positive value on the X-axis.
  • the distance between the first position and the second position in the X-direction and in the Y-direction can be determined.
  • the distance between the first position and the second position is in the Y-direction 0% to 10% of the distance in the X direction.
  • the trajectory of the movement of the guide element between the first position and the second position in the Y direction is substantially smaller than in the X direction, takes place to compensate for distance tolerances no recognizable for the user or the patient rotation of the lifting carriage about the first longitudinal axis ,
  • connection between the guide means and the chassis allows the compensating movement of the guide means only in such a way that the second point of intersection moves in the lifting movement of the lifting carriage within its adjustment range on a predetermined trajectory in the plane.
  • the trajectory can have both a straight and a curved, in particular circular, course.
  • the trajectory is a one-dimensional Trajectory in the plane.
  • the course of the trajectory at each point of its path has a greater proportion along the X-axis than along the Y-axis.
  • the trajectory of the movement of the guide element in the Y direction is substantially smaller than in the X direction, since in the case of a movement in the X direction to compensate for Abstandstolleranzen no recognizable rotation of the lifting carriage takes place about the first longitudinal axis.
  • the main guide comprises a guide rod and a guide bush arranged in the chassis, wherein the first longitudinal axis is the longitudinal axis of the guide rod.
  • the guide rod is in each case fixedly connected to the lifting carriage at a first end and at a second end opposite the first end and is displaced together with the latter during the lifting movement of the lifting carriage.
  • the guide rod is slidably passed through the guide bushing.
  • the secondary guide comprises a guide element designed as a rod or cylinder tube, wherein a first end of the guide element and a second end of the guide element opposite the first end are each firmly connected to the lifting carriage.
  • the guide member is slidably passed through the contact area of the guide means. This ensures that the lifting carriage is guided safely through the main guide.
  • the guide bush of the main guide is preferably designed as a bearing bush.
  • no long guide elements must be provided in the operating table, for example, limit the minimum lifting height of a patient support surface of the operating table. Furthermore, this achieves a simple, robust construction and reliable guidance of the guide element of the secondary guide through the opening of the guide means.
  • the guide rod has a circular cross section with a diameter in the range 25 mm to 80 mm, preferably 50 mm.
  • the main guide has at least one contact region over which the guide bush contacts the guide rod, wherein the contact region of the main guide parallel to the first longitudinal axis has a length in the range of 120 mm to 210 mm, preferably 170 mm. This ensures that torques from the lifting carriage to the chassis are transferable at a low clearance.
  • the secondary guide is formed by a cylinder tube serving as Hubschlittenantrieb lifting cylinder and one end of the piston rod of the lifting cylinder is firmly connected to the chassis of the operating table.
  • the Hubschlittenantrieb example designed as a helical gear, the Hubschlittenantrieb is rotatably connected to the lifting.
  • the guide means has a first opening forming the contact region of the guide means, through which a portion of the secondary guide is guided in a sliding manner. As a result, a secure guidance of the secondary guide is ensured in a particularly simple manner.
  • the first opening of the guide means and a portion of the secondary guide form a sliding bearing, via which the secondary guide along the first longitudinal axis is movable relative to the guide means.
  • a secure guidance of the secondary guide by the guide means is realized particularly easily.
  • the Hubschlittenantrieb a lifting cylinder, preferably a double-acting and / or hydraulic lifting cylinder, and when a portion of the lateral surface of the cylinder tube is guided through the first opening of the guide means slidably. This allows the Hubschlittenantrieb in an advantageous manner both lift the lifting and actively lower.
  • the guide means is pivotally connected about an axis parallel to the first longitudinal axis of rotation with the chassis of the operating table.
  • a neutral position of the guide means is a lying in the plane and the axis of rotation and the second longitudinal axis each perpendicular intersecting radial axis perpendicular to the X-axis.
  • a compensating movement along the X-axis can be carried out particularly easily by the guide means and at the same time a compensation movement of the guide means relative to the chassis of the operating table along the Y-axis can not or only slightly be permitted.
  • the radial axis intersects the X-axis in the range between 80 ° and 100 °, preferably 85 ° and 95 °.
  • the permitted manufacturing and assembly tolerances are limited such that during the compensation movement of the guide means, the maximum length of the projection of the distance between the first position and the second position on the X-axis has a value in the range 0 mm to 3 mm, preferably in the range of 0 mm to 1 mm. As a result, a restriction of the displacement distance is easily possible.
  • the only compensating movement which allows the connection of the guide means to the chassis during a lifting movement of the lifting carriage in the plane, runs along a connecting line between the first intersection and the second intersection. This increases the stiffness of the lifting slide against torques in the plane perpendicular to the X-axis or an axis parallel thereto, and at the same time receives the necessary compensation movement along the X-axis.
  • a first linear actuator and a second linear actuator are provided, wherein the lifting carriage is connected to a respective first end of the first linear actuator and the second linear actuator for adjusting the height and / or inclination of the column head of the operating table.
  • the first and the second linear actuator are preferably the only effective mechanical connection between the lifting and the column head.
  • the patient support surface of the operating table is coupled to the column head, with a vertical movement of the lifting carriage, a height change of the patient support surface takes place.
  • a second aspect of the invention relates to an operating table with a device for height adjustment of a patient support surface according to claim 1 or a specified development.
  • the patient support surface is connected to a pillar head of the operating table, wherein the height of the pillar head can be changed by the vertical movement of the lifting carriage.
  • FIG. 1 shows a schematic representation of an operating table 10 according to a first embodiment.
  • the operating table 10 comprises a patient support surface 12, an operating table column 14 and an operating table base 16.
  • the operating table column 14 has a column head 18 and a base body 20.
  • the patient support surface 12 has a plurality of components that are adjustable relative to one another in their position, which allow a different positioning of a patient, not shown.
  • the patient support surface 12 has a seat panel 26, a back panel 24, a top panel 22, a two-piece right leg panel 28, and a two-piece left leg panel 30.
  • FIG. 2 shows a detailed perspective side view of the operating table base 16 and the operating table column 14 of the operating table 10, wherein cladding elements of the operating table column 14 are not shown. Elements with the same structure or the same function have the same reference numerals.
  • the operating table column 14 has a lifting carriage 40, which is displaceable in the vertical direction with the aid of a lifting cylinder 34.
  • the lifting carriage 40 is connected via two parallel linear actuators 42, 44 with the column head 18 and connected to this patient support surface 12. In a vertical movement of the lifting carriage 40, the height of the column head 18 and thus the height of the patient support surface 18 is changed.
  • the lifting carriage 40 is guided in a vertical movement for height adjustment by a circular guide rod 32 of a main guide.
  • the guide rod 32 has a first vertically aligned longitudinal axis L1 about which the lifting carriage 40 is rotatably mounted and along which it is guided in a vertical movement.
  • the lifting carriage 40 comprises a lower part 41 and an upper part 46.
  • the upper part 46 is in FIG. 2 shown cut in a vertical plane.
  • the upper end of the guide rod 32 is connected to the upper part 46 of the lifting carriage 40 and the lower end of the guide rod 32 is fixedly connected to the lower part 41 of the lifting carriage 40.
  • a chassis 38 also referred to as base body of the operating table column 14, has a guide bushing 33, through which the guide rod 32 is slidably guided.
  • the guide rod 32 receives substantially all lateral forces acting on the lifting carriage 40, and passes them over the guide bushing 33 in the chassis 38 a.
  • the lift cylinder 34 is a hydraulic cylinder having a cylinder tube 34a and a piston rod 34b.
  • the lower end of the piston rod 34b is firmly connected in the operating table base 16 with the chassis 38 of the operating table column 14, so that the cylinder tube 34a is extendable upwards.
  • the cylinder tube 34a is firmly connected via a connecting portion with the lower part 41 of the lifting carriage 40, and at its upper end, the cylinder tube 34 a is fixedly connected to the upper part 46 of the lifting carriage 40.
  • the vertical movement of the cylinder tube 34 a during an adjusting movement of the lifting cylinder 34 is guided by a guide means 36.
  • the cylinder tube 34a thus serves as a secondary guide.
  • the longitudinal axis L2 of the cylinder tube 34a is aligned within the assembly and manufacturing tolerances parallel to the first longitudinal axis L1.
  • the secondary guide prevents rotation of the lifting carriage 40 about the first longitudinal axis L1 and receives the torques acting on the lifting carriage 40 about the first longitudinal axis L1.
  • the lifting cylinder 34 is designed as a double-acting hydraulic cylinder 34 in the present embodiment.
  • other linear actuators can be used as Hubschlittenantrieb 34.
  • a plane E which is arranged perpendicular to the longitudinal axes L1 and L2, extends an axis X, which is hereinafter referred to as the X-axis and which intersects the longitudinal axis L1 at the intersection S1 and the longitudinal axis L2 at the intersection S2 at right angles, respectively the guide means 36 and thus the cylinder tube 34a are in a neutral position.
  • the plane further extends an axis Y, which is hereinafter referred to as Y-axis and which is perpendicular to the X-axis and the longitudinal axis L1 intersects.
  • the guide means 36 has a circular opening through which the cylinder tube 34 a of the lifting cylinder 34 is passed.
  • the guide means 36 is rotatably mounted on the chassis 38 via a pivot bearing 52 and connected via two screw connections, of which the first screw 48 is clearly visible, with the chassis 38 and thus via the chassis 38 with the guide bush 33.
  • the axis of rotation of the Swivel bearing 52 is denoted by Z and is parallel to the longitudinal axis L1 of the guide rod 32.
  • the connection of the guide means 36 via the two screw 48 and the pivot bearing 52 with the chassis allows the cylinder tube 34a a movement in the plane E with a maximum length in the range 0th mm to 1 mm along the X axis.
  • the configuration of the first screw 48 and the second screw 50 is used in conjunction with FIG. 6 explained in more detail.
  • the guide means 36 is arranged such that, in the neutral position of the guide means 36, a radial axis R perpendicularly intersecting the rotation axis Z of the pivot bearing 52 and the longitudinal axis L2 of the cylinder tube 34a is parallel to the Y-axis.
  • the cylinder tube 34a of the lift cylinder 34 is guided by the guide means 36 such that the sectional surface of the cylinder tube 34a with the plane E in the plane E along the radial axis R is not or less than along the X-axis displaceable.
  • a force applied to the lifting carriage 40 from the lateral direction parallel to the Y-axis is introduced into the chassis 38 via the cylinder tube 34a and the guide means 36.
  • the first linear actuator 42 and the second linear actuator 44 each have a cylinder tube and a piston rod.
  • the cylinder tubes of the first linear actuator 42 and the second linear actuator 44 are each received via a connecting portion at its respective lower end in designated receiving openings in the lower part 41 of the lifting carriage 40 and connected via this fixed to the lower part 41 of the lifting carriage 40.
  • the upper ends of the cylinder tubes of the first linear actuator 42 and the second linear actuator 44 are each received via a connecting portion in designated receiving openings in the upper part 46 of the lifting carriage 40 and connected via this fixed to the upper part 46 of the lifting carriage 40.
  • the upper end of the upward extendable piston rod of the first linear actuator 42 and the upper end of the upward extendable piston rod of the second linear actuator 44 are each connected to the column head 18.
  • the piston rods are in FIG. 2 hidden.
  • the upper part 46 and the lower part 41 of the lifting carriage 40 are thus firmly connected to one another via the cylinder tube 34a and the guide rod 32 and the cylinder tubes of the linear actuators 42, 44.
  • FIG. 3 shows a detailed side view in perspective of a section of the operating table base 16 and the operating table column 14 after FIG. 2 from the to FIG. 2 opposite viewing direction, wherein the linear actuators 42, 44 completely hidden and the upper part 46 and the lower part 41 of the lifting carriage 40 are shown cut in a vertical plane.
  • a second screw 50 of the guide means 36 is visible, via which the guide means 36 is connected to the chassis 38.
  • FIG. 4 shows a detailed perspective top view of the arrangement according to FIG. 3 , In this illustration, in particular the attachment of a piston rod 34b of the lifting cylinder 34 can be seen.
  • the piston rod 34b is connected at its lower end in the operating table base 16 fixed to the chassis 38.
  • a pivoting movement of the guide means 36 about the rotation axis Z allows only for small angles of rotation only a minimal movement of the cutting area of the lifting cylinder 34 with the plane E in Direction of an axis parallel to the Y-axis.
  • the position of the intersection S2 of the longitudinal axis L2 of the cylinder tube 34a changes upon rotation of the guide means 36 about the axis Z by a maximum distance in the range of 0 mm to 1 mm in the direction of the X-axis.
  • FIG. 5a shows a schematic perspective side view of the guide rod 32, the cylinder tube 34 a of the lifting cylinder 34 and the guide means 36th
  • FIG. 5b shows an enlarged section of the FIG. 5a
  • the cylinder tube 34a of the lift cylinder 34 is laterally guided by the guide means 36 so that changes in the position of the intersection S2 of the longitudinal axis L2 with the plane E have a greater proportion along the X axis than along the Y axis.
  • P1 the intersection S2 of the longitudinal axis L2 lies with the plane E before a lifting movement of the lifting carriage 40 on the X-axis.
  • the point of intersection S2 of the second longitudinal axis L2 sets in the lifting movement a displacement distance 53 in the plane E back and moves along the direction of the arrow. From the distance between the first position P1 and the second position P2, the projection on the X-axis is designated PX and the projection on the Y-axis is designated PY. In particular, the length of PY is smaller than the length of PX.
  • FIG. 6 shows a top perspective view of the operating table column 14 wherein provided in the chassis 38 guide bushing 33 and connected to the chassis 38 guide means 36 are shown.
  • details of the first screw 48 and the second screw 50 are shown in this illustration.
  • the first disc spring 62 is located between a screw head, not shown, of the first screw and a bearing surface of the guide means 36.
  • the first screw is screwed into the first internal thread 64 in the chassis 38.
  • the nominal diameter of the first screw is smaller than the diameter of the passage opening provided in the guide means 36, so that the guide means 36 can move relative to the first screw.
  • the lower side of the disc spring 62 is pressed onto the provided first bearing surface of the guide means 36 and can slide on this support surface, so that the guide means 36 can perform a compensating movement in the plane E with a maximum length in the range 0 mm to 1 mm.
  • the first bearing surface is formed by a shoulder in the opening provided for the first screw.
  • the second screw is screwed into the internal thread 68 in the chassis 38.
  • the nominal diameter of the second screw is smaller than the diameter of the passage opening provided in the guide means 36, so that the guide means 36 can move relative to the second screw.
  • the lower side of the second plate spring 66 is pressed onto the provided second bearing surface of the guide means 36 and can slide on this support surface, so that the guide means 36 can perform a compensating movement in the plane E with a maximum length in the range 0 mm to 1 mm.
  • the second bearing surface is formed by a shoulder in the opening provided for the second screw.
  • the positioning of the guide means 36 to the X-axis and the Y-axis is illustrated by the drawn radial axis R.
  • the radial axis R lies in the plane E and passes through the pivot bearing 52 and the center of the circular guide opening 70 of the guide means 36.
  • the radial axis R is perpendicular to the X-axis.
  • FIG. 7 shows a plan view of the cross section of the operating table column 14 above the guide means 36.
  • the guide means 36 is arranged so that the radial axis R is parallel to the Y-axis.
  • the cylinder tube 34a is mounted non-displaceable along the radial axis R.
  • the lifting carriage 40 fixedly connected to the cylinder tube 34a can therefore in particular not execute any rotations about the longitudinal axis L1 of the guide rod 32.
  • the guide means 36 can be displaced by a guided by the guide means 36 lifting movement of the lifting cylinder 34 in the plane E.
  • FIG. 8 shows a top perspective view of the chassis 80 of another operating table column 82 according to a second embodiment.
  • the chassis 80 of the operating table column 82 is used as an alternative to the chassis 38 of the operating table column 14 and differs in the design of the guide means for guiding a lateral movement of the cutting portion of the lifting cylinder 34 with the plane E.
  • the other partially not shown elements of this second embodiment are so formed and arranged as in the first embodiment.
  • the further guide means 74 is designed differently than the guide means 36.
  • the guide means 74 is connected to the chassis 80 via a first web 76 and a second web 78.
  • the guide bushing 33, the webs 76, 78 and the guide means 74 and the chassis 80 are integrally formed, preferably from a block of material or as a casting.
  • the longitudinal axes of the first web 76 and the second web 78 are each arranged parallel to the Y-axis.
  • first web 76 and the second web 78 are formed thinner in the X-axis direction than in the Y-axis direction such that upon force application of the guide means 74 in the X-axis direction, the first land 74 and the second land 78 are elastically deformable.
  • a guide opening 70 is provided through which the cylinder tube 34 a is guided, so that it can slide through the guide opening 70 during a drive movement of the lifting cylinder 34.
  • the cylinder tube 34a passed through the guide opening 70 is thereby in the plane E along the X-axis movable by a distance with a maximum length in the range 0 mm to 1 mm.
  • the first web 76 and the second web 78 are not bendable, so that the cylinder tube 34 a and the lifting cam 40 connected thereto are stably guided with lateral forces along the Y axis and in particular no rotational movement about the longitudinal axis L 1 of FIG Execute guide rod 32.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nursing (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
EP15171193.4A 2014-07-04 2015-06-09 Vorrichtung zur höhenverstellung eines operationstischs Not-in-force EP2962674B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15171193T PL2962674T3 (pl) 2014-07-04 2015-06-09 Urządzenie do regulacji wysokości stołu operacyjnego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014109377.1A DE102014109377B4 (de) 2014-07-04 2014-07-04 Vorrichtung zur Höhenverstellung eines Operationstischs und Operationstisch mit einer derartigen Vorrichtung

Publications (2)

Publication Number Publication Date
EP2962674A1 EP2962674A1 (de) 2016-01-06
EP2962674B1 true EP2962674B1 (de) 2018-02-14

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EP15171193.4A Not-in-force EP2962674B1 (de) 2014-07-04 2015-06-09 Vorrichtung zur höhenverstellung eines operationstischs

Country Status (9)

Country Link
US (1) US10111797B2 (ko)
EP (1) EP2962674B1 (ko)
JP (1) JP6106717B2 (ko)
KR (1) KR101706460B1 (ko)
CN (1) CN105310852B (ko)
BR (1) BR102015015114A2 (ko)
DE (1) DE102014109377B4 (ko)
PL (1) PL2962674T3 (ko)
RU (1) RU2607553C1 (ko)

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DE102014109377B4 (de) 2017-11-16
RU2015125584A (ru) 2017-01-10
BR102015015114A2 (pt) 2016-08-30
JP6106717B2 (ja) 2017-04-05
RU2607553C1 (ru) 2017-01-10
KR20160004971A (ko) 2016-01-13
CN105310852A (zh) 2016-02-10
KR101706460B1 (ko) 2017-02-13
CN105310852B (zh) 2017-05-17
JP2016016323A (ja) 2016-02-01
EP2962674A1 (de) 2016-01-06
DE102014109377A1 (de) 2016-01-07
PL2962674T3 (pl) 2018-07-31
US10111797B2 (en) 2018-10-30
US20160000628A1 (en) 2016-01-07

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