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WO2025193177A1 - Table médicale basculante - Google Patents

Table médicale basculante

Info

Publication number
WO2025193177A1
WO2025193177A1 PCT/SI2024/050009 SI2024050009W WO2025193177A1 WO 2025193177 A1 WO2025193177 A1 WO 2025193177A1 SI 2024050009 W SI2024050009 W SI 2024050009W WO 2025193177 A1 WO2025193177 A1 WO 2025193177A1
Authority
WO
WIPO (PCT)
Prior art keywords
tilting
primary platform
joint
moving part
main actuator
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.)
Pending
Application number
PCT/SI2024/050009
Other languages
English (en)
Inventor
Miha NOVAK
Gašper KOZJEK
Štefan KLEMENT
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.)
Novak M d o o
Original Assignee
Novak M d o o
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 Novak M d o o filed Critical Novak M d o o
Priority to PCT/SI2024/050009 priority Critical patent/WO2025193177A1/fr
Publication of WO2025193177A1 publication Critical patent/WO2025193177A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A61G13/04—Adjustable operating tables; Controls therefor tiltable around transverse or longitudinal axis

Definitions

  • the invention relates to a tilting medical table, in particular to a table with adjustable components, suitable for performing medical procedures, such as medical examinations, treatments or surgical operations, wherein three main actuator columns and corresponding connection assemblies are designed and positioned to enable smooth and controlled movement of the primary platform, of which the tabletop is adapted to support a body.
  • the primary platform can be moved vertically and into multiple tilted positions.
  • a control unit may be used to set the tabletop into different positions before and during the medical procedure.
  • tilting medical tables especially tilting operating tables
  • Some of such tables must be set manually before each procedure.
  • recently developed tables incorporate motor-driven components and actuators, commonly equipped with control units for setting different tabletop positions.
  • One of the key considerations of designing such tilting medical tables involves optimizing the range of motion between each tilting position of the tabletop, allowing to achieve specific angles of the tabletop, required for various medical procedures.
  • Another important consideration is to enable adjustment of the tabletop positions during medical procedures, hence the stringent requirements regarding accuracy, precision, and smooth movement.
  • a common issue during actuator movement is the occurrence of backlash, leading to intermittent jerky motions that compromise precision and introduce unintended small movements.
  • the backlash of actuators is particularly noticeable, when the direction of movement changes, especially during rapid reversals.
  • Document EP3659569B1 discloses an operating table, of which tabletop is supported by a column and a base below the column. The movement of the tabletop is facilitated by an actuator linked to a control unit. A string potentiometer is used as a sensor to detect a change in position of the tabletop.
  • EP1267723B1 discloses a surgical table, which enables movement of the tabletop into various vertical and tilting positions around the longitudinal as well as transverse axis.
  • the surgical table includes a lateral tilting mechanism between the upper frame and a bottom frame, comprising actuating hydraulic cylinders arranged essentially diagonally within a four-link mechanism, allowing lateral tilting of the tabletop.
  • the bottom frame is further supported on a column unit.
  • the column unit carries a vertical lift actuator, for providing vertical movement of the tabletop, and longitudinal tilt actuators for providing longitudinal tilting.
  • Each of the joints connecting the actuators essentially allows movement in one direction, i.e. around one axis of rotation.
  • a tilting medical table of the invention with a tilting platform, which assures accuracy of the tabletop positions and smooth motion between various tabletop positions.
  • a tilting platform which assures accuracy of the tabletop positions and smooth motion between various tabletop positions.
  • Figure 1 presents medical table of the invention - side view
  • Figure 2 presents medical table of the invention - top view
  • Figure 3 presents medical table of the invention tilted around Y axis - side view
  • Figure 4 presents medical table of the invention tilted around X axis - frontal view
  • Figure 5 presents medical table of the invention in expanded position with details of connecting assemblies; DET.1 - third connecting assembly; DET. 2 - second connecting assembly; DET. 3 - first connecting assembly.
  • Figure 6 presents an embodiment of the top view of all three connecting assemblies with a triangular arrangement of the three main actuator columns.
  • Figures 1 - 6 are simplified and present medical table without protective cover surrounding lifting columns and without upholstery.
  • Figures 3 - 6 are simplified and present medical table without fastening means and without additional actuators that move additional platforms.
  • the medical table according to the invention is a tilting medical table, comprising a primary platform 11 with longitudinal axis X and transverse axis Y, wherein the tabletop, i.e., the upper surface 111 of the primary platform 11 is adapted for supporting a human body, a base structure 2, three main actuator columns 31 , 32, 33, each driven by its main drive and including a moving part 311 , 321 , 331 and a static part 312, 322, 332, and three connecting assemblies 4, 5, 6, wherein said main actuator columns 31 , 32, 33 are with a static part 312, 322, 332 fixedly attached to the base structure 2, and wherein each of the connecting assemblies 4, 5, 6 is adapted to connect the primary platform 11 on its bottom surface 112 with the moving part 311 , 321 , 331 of the corresponding main actuator column 31 , 32, 33, i.e., the three connecting assemblies 4, 5, 6 are adapted to connect the respective moving parts 311 , 321 , 331 of the main actuator columns 31 , 32,
  • the base structure 2 is supported on casters 21 .
  • each of the main actuator columns 31 , 32, 33 is an electric motor adapted to linearly move the moving part 311 , 321 , 331 in one direction or another along its axis, preferably the moving part 311 , 321 , 331 is raised or lowered vertically.
  • the primary platform 11 is connected with the moving parts 311 , 321 , 331 of the corresponding main actuator columns 31 , 32, 33 via three connecting assemblies 4, 5, 6.
  • the first connecting assembly 4 is connecting the primary platform 11 with the first moving part 311
  • the second connecting assembly 5 is connecting the primary platform 11 with the second moving part 321
  • the third connecting assembly 6 is connecting the primary platform 11 with the third moving part 331 .
  • the three main actuator columns 31 , 32, 33 are configured in a triangular arrangement, to assure stability of the primary platform 11 and enable tilting around the transverse axis Y and/or tilting around the longitudinal axis X.
  • the first main actuator column 31 is positioned on one flank side of the primary platform 11
  • the second main actuator column 32 is positioned on the opposite flank side of the primary platform 11
  • the first main actuator column 31 is preferably aligned along the transverse axis Y with the second main actuator column 32
  • the third main actuator column 33 is positioned between the first main actuator column 31 and the second main actuator column 32, and offset towards the front or the back part of the primary platform 11 , preferably along the longitudinal axis X.
  • main actuator columns 31 , 32, 33 are close enough together to enable unhindered access of the medical personnel to the patient on the medical table, and at the same time the main actuator columns 31 , 32, 33 are far enough apart to ensure the stability of the medical table and enable tilting of the primary platform 11 in all directions.
  • the triangular arrangement essentially forms an isosceles triangle, wherein the center point A of the first connecting assembly 4 and the center point B of the second connecting assembly 5 are arranged in a line that is essentially parallel to the transverse axis Y of the primary platform 11 , and the center point C of the third connection assembly 6 is essentially on a line that is the bisector of a line segment between center points A and B and is essentially parallel to the longitudinal axis X of the primary platform 11 .
  • the positioning of the three main actuator columns 31 , 32, 33, the linear motion of the moving parts 311 , 321 , 331 of the main actuator columns 31 , 32, 33 and the design of each corresponding connecting assembly 4, 5, 6 are the main features enabling smooth tilting of the primary platform 11 essentially around its longitudinal axis X up to a maximum angle, which is for example up to ⁇ 30 degrees, preferably ⁇ 20 degrees, and/or smooth tilting of the primary platform 11 essentially around its transverse axis Y up to a maximum angle, which is for example up to ⁇ 30 degrees, preferably ⁇ 20 degrees.
  • the moving part 311 of the first main actuator column 31 is driven by the first main drive and is connected via the first connecting assembly 4 to the first connection surface of the primary platform 11 .
  • the first connecting assembly 4 is essentially an assembly of two spherical joints 41 , 42, fixedly joined by a first intermediary element 43, each of spherical joints 41 , 42 having three rotational degrees of freedom between the two joint parts.
  • the two joint parts are free to rotate relative to each other along all three axes.
  • the first connecting assembly 4 comprises a first spherical joint 41 and a second spherical joint 42, each comprising a first part 411 , 421 and a second part 412, 422, acting as a male - female connection pair, wherein the two spherical joints 41 , 42 are connected to one another through a first intermediary element 43 of length L1.
  • the first part 411 of the first spherical joint 41 is adapted to be fixed to or integrated with the first connection surface of the primary platform 11
  • the first part 421 of the second spherical joint 42 is adapted to be fixed to or integrated with the moving part 311 of the first main actuator column 31
  • the first intermediary element 43 is on one end adapted to be fixed to the second part 412 of the first spherical joint 41 , and is on the other end adapted to be fixed to the second part 422 of the second spherical joint 42.
  • the moving part 321 of the second main actuator column 32 is driven by the second main drive and is connected via the second connecting assembly 5 to the second connection surface of the primary platform 11 .
  • the second connecting assembly 5 is essentially an assembly of spherical joints 51 , 52, fixedly joined by a second intermediary element 53, each of spherical joints 51 , 52 having three rotational degrees of freedom between the two joint parts.
  • the two joint parts are free to rotate relative to each other along all three axes.
  • the second connecting assembly 5 analogously to the first connecting assembly 4 comprises a third spherical joint 51 and a fourth spherical joint 52, each comprising a first part 511 , 521 and a second part 521 , 522, acting as a male - female pair, wherein said spherical joints 51 , 52 are connected to one another through a second intermediary element 53 of a length L2.
  • the first part 511 of the third spherical joint 51 is adapted to be fixed to or integrated with the second connection surface of the primary platform 11
  • the first part 521 of the fourth spherical joint 52 is adapted to be fixed to or integrated with the moving part 321 of the second main actuator 32
  • the second intermediary element 53 is on one end adapted to be fixed to the second part 512 of the third spherical joint 51 , and is on the other end adapted to be fixed to the second part 522 of the fourth spherical joint 52.
  • the male part of the male - female pair of each spherical joint 41 , 42, 51 , 52 or its contour is shaped functionally and essentially as a spherical object, and the corresponding other part - female part of each spherical joint 41 , 42, 51 , 52 or its contour is functionally and essentially shaped as a socket, wherein the spherical object fits inside the socket to allow free movement in three directions, namely up-down, left-right, around its axis.
  • the length L1 , L2 of the intermediary elements 43, 53 have influence on the highest and the lowest position of the primary platform 11 and in conjunction with their spacing have influence on the maximum angle of the tilt of the primary platform 11 around the transversal axis Y and/or around the longitudinal axis X.
  • the length L1 , L2 of the intermediary elements 43, 53 is as short as possible, to ensure the compactness of the first and the second connection assemblies 4, 5, however, sufficiently long to enable the desired maximum angles, for example the maximum angles of ⁇ 20 degrees, or possibly up to ⁇ 30 degrees.
  • the lengths L1 and L2 of the intermediary elements 43, 53 are at least such that the maximum angle of the tilt of the primary platform 11 around the transversal axis Y and/or around the longitudinal axis X of ⁇ 20 degrees is enabled, while unhindered movement of the primary platform 11 relative to the main actuator columns 31 , 32 is enabled, that is, to prevent the collision between the first part 411 of the first spherical joint 41 and the first part 421 of the second spherical joint
  • Each spherical joint 41 , 42, 51 , 52 enables free tilting and rotating movement in three degrees of freedom, essentially facilitating vertical or sloped positioning of the corresponding intermediary element
  • each of the spherical joints 41 , 42, 51 , 52 and the length L1 , L2 of each of the respective intermediary elements 43, 53 minimize the mechanical stress of each spherical joint 41 , 42, 51 , 52 and enabling the required range of tilting of the primary platform 11 around the transversal axis Y and/or around the longitudinal axis X into different positions.
  • the second connecting assembly 5 is essentially identical to the first connecting assembly 4.
  • the moving part 331 of the third main actuator column 33 is driven by the third main drive and is connected via the third connecting assembly 6 to the third connection surface of the primary platform 11.
  • the third connecting assembly 6 is essentially a biaxial joint enabling movement in two degrees of freedom.
  • the third connecting assembly 6 comprises a first axial joint 61 with the first axis A1 of rotation, said first axial joint 61 comprising a first axial component 611 and a second axial component 612 , and a second axial joint 62 with the second axis A2 of rotation, said second axial joint 62 comprising a first axial component 621 and a second axial component 622, wherein the first axial joint 61 is through its second axial component 612 fixedly attached to the second axial component 622 of the second axial joint 62 so that the first axis A1 of rotation is essentially perpendicular to the second axis A2 of rotation or essentially parallel to a line which is perpendicular to the second axis A2 of rotation, wherein the first axial component 611 of the first axial joint 61 is adapted to be fixed to or integrated with the third connection surface of the primary platform 11 , and the first axial component 621 of the second axial joint 62 is adapted to be fixed to or integrated with
  • the first axis A1 of rotation is essentially parallel to the transversal axis Y of the primary platform 11 and the second axis A2 of rotation is essentially parallel to the longitudinal axis X of the primary platform 11 when the primary platform 11 is in its horizontal position.
  • both the first axial joint 61 and the second axial joint 62 are pivot joints, wherein the second axial component 612, 622 of each axial joint 61 , 62 is implemented as a shaft, and the first axial component 611 , 621 of each axial joint 61 , 62 is implemented as a bracket in which the shaft is rotatably clamped to rotate around its axis of rotation, wherein the first axial component 611 of the first axial joint 61 is fixedly attached to the third connection surface of the primary platform 11 , and the first axial component 621 of the second axial joint 62 is fixedly attached to the moving part 331 of the third actuator column 33.
  • the tilting medical table according to the invention enables vertical and tilting motion of the primary platform 11 .
  • the moving part 311 of the first actuator column 31 or the moving part 321 of the second actuator column 32 is raised or lowered while the position of the moving part 331 of the third actuator column 33 is maintained.
  • the moving part 311 of the first actuator column 31 and the moving part 321 of the second actuator column 32 move simultaneously and equally but in opposite directions.
  • the tilting of the primary platform 11 around its transversal axis Y is enabled, i.e., changing its pitch.
  • the moving part 331 of the third actuator column 33 is moving in one direction, and the moving part 311 and the moving part 321 move simultaneously and equally but in opposite directions.
  • additional platforms 12, 13 can be rotationally connected, e.g. via a hinge joint, to the primary platform 11 or to one another, while the movement of each rotational connection is controlled by an additional actuator 121 , 131 with a corresponding drive.
  • each additional actuator 121 , 131 is with its static part fixedly attached to the bottom surface 112 of the primary platform 11 and is with its moving part connected to the bottom surface of the corresponding additional platform 12, 13 via a joint enabling movement of one degree of freedom, e.g. for tilting the additional platform 12, 13 relative to the primary platform 11 around corresponding transversal axis Y1 , Y2.
  • the first additional platform 12 is rotationally connected to the primary platform 11 at its front end, i.e., to act as a support for the upper body part
  • a second additional platform 13 is rotationally connected to the primary platform 11 at its back end, i.e., to act as a support for the lower body part.
  • the second additional platform 13 may be implemented of two parts, of the fixed part, which is articulately connected to the primary platform 11 , and of the detachable part, which is detachably clamped to the fixed part.
  • the detachable part may be detached and removed.
  • the main actuator columns 31 , 32, 33 i.e., their main drives, are controlled by a control unit which converts external control signals into the corresponding movement signals for each particular main drive. This enables manual manipulation of the primary platform 11 through a user interface device, such as joystick or hand switch, or program manipulation.
  • the additional actuators 121 , 131 i.e., their drives, are controlled in the same way.
  • the stability of the primary platform 11 during its manipulation is achieved, i.e., intermittent jerky motions during moving the table in different positions is eliminated, easier manipulation and movement control during moving the table in different positions is enabled and versatile movement of the primary platform 11 is enabled.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

L'invention concerne une table médicale basculante comprenant une plateforme primaire (11), une structure de base (2), trois colonnes d'actionnement principales (31, 32, 33) et trois ensembles de liaison (4, 5, 6). Trois colonnes d'actionnement principales (31, 32, 33) et des ensembles de liaison (4, 5, 6) correspondants sont conçus et positionnés pour permettre un mouvement régulier et commandé de la plateforme primaire (11). Des colonnes d'actionnement principales (31, 32, 33) sont pourvues d'une partie statique (312, 322, 332) fixée à demeure à la structure de base (2), et chacun des ensembles de liaison (4, 5, 6) est conçu pour relier la plateforme primaire (11) sur sa surface inférieure (112) à la partie mobile (311, 321, 331) de la colonne d'actionneur principale correspondante (31, 32, 33). Des ensembles de liaison (4, 5) sont des ensembles de joints sphériques (41, 42, 51, 52), reliés à demeure par un élément intermédiaire (43, 53) permettant un mouvement selon trois degrés de liberté. L'ensemble de liaison (6) est un joint biaxial permettant un mouvement selon deux degrés de liberté.
PCT/SI2024/050009 2024-03-12 2024-03-12 Table médicale basculante Pending WO2025193177A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/SI2024/050009 WO2025193177A1 (fr) 2024-03-12 2024-03-12 Table médicale basculante

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SI2024/050009 WO2025193177A1 (fr) 2024-03-12 2024-03-12 Table médicale basculante

Publications (1)

Publication Number Publication Date
WO2025193177A1 true WO2025193177A1 (fr) 2025-09-18

Family

ID=90571551

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SI2024/050009 Pending WO2025193177A1 (fr) 2024-03-12 2024-03-12 Table médicale basculante

Country Status (1)

Country Link
WO (1) WO2025193177A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847929A (en) * 1986-12-02 1989-07-18 Milenko Pupovic Bed with adjustable positions
EP1267723B1 (fr) 2000-03-29 2006-08-16 Stille Sonesta AB Table chirurgicale dotee d'un dispositif de deplacement
DE102017223076A1 (de) * 2017-01-06 2018-07-12 Aktiebolaget Skf Betätigungssystem zum Steuern der Bewegung eines Tisches
WO2020064903A1 (fr) * 2018-09-28 2020-04-02 MAQUET GmbH Colonne d'opération réglable dotée d'un dispositif de guidage de ligne de transmission d'énergie et/ou de données
EP3659569B1 (fr) 2018-11-29 2021-09-01 TRUMPF Medizin Systeme GmbH + Co. KG Table d'opération et procédé d'utilisation de la table d'opération

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4847929A (en) * 1986-12-02 1989-07-18 Milenko Pupovic Bed with adjustable positions
EP1267723B1 (fr) 2000-03-29 2006-08-16 Stille Sonesta AB Table chirurgicale dotee d'un dispositif de deplacement
DE102017223076A1 (de) * 2017-01-06 2018-07-12 Aktiebolaget Skf Betätigungssystem zum Steuern der Bewegung eines Tisches
WO2020064903A1 (fr) * 2018-09-28 2020-04-02 MAQUET GmbH Colonne d'opération réglable dotée d'un dispositif de guidage de ligne de transmission d'énergie et/ou de données
EP3659569B1 (fr) 2018-11-29 2021-09-01 TRUMPF Medizin Systeme GmbH + Co. KG Table d'opération et procédé d'utilisation de la table d'opération

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