DE3703424A1 - Supporting arm for sight testing equipment - has parallelogram linkage with one link fitted inside tubular link - Google Patents

Supporting arm for sight testing equipment - has parallelogram linkage with one link fitted inside tubular link

Info

Publication number
DE3703424A1
DE3703424A1 DE3703424A DE3703424A DE3703424A1 DE 3703424 A1 DE3703424 A1 DE 3703424A1 DE 3703424 A DE3703424 A DE 3703424A DE 3703424 A DE3703424 A DE 3703424A DE 3703424 A1 DE3703424 A1 DE 3703424A1
Authority
DE
Germany
Prior art keywords
link
parallelogram
column
testing equipment
fitted inside
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.)
Withdrawn
Application number
DE3703424A
Other languages
German (de)
Inventor
Winfried Kadenbach
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.)
Jenoptik AG
Original Assignee
Jenoptik Jena 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 Jenoptik Jena GmbH filed Critical Jenoptik Jena GmbH
Publication of DE3703424A1 publication Critical patent/DE3703424A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/2092—Undercarriages with or without wheels comprising means allowing depth adjustment, i.e. forward-backward translation of the head relatively to the undercarriage
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/50—Supports for surgical instruments, e.g. articulated arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/08—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a vertical axis, e.g. panoramic heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/50—Supports for surgical instruments, e.g. articulated arms
    • A61B2090/506—Supports for surgical instruments, e.g. articulated arms using a parallelogram linkage, e.g. panthograph
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/04—Balancing means
    • F16M2200/044—Balancing means for balancing rotational movement of the undercarriage

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Eye Examination Apparatus (AREA)
  • Rehabilitation Tools (AREA)

Abstract

The sight testing equipment (13,14) is supported on a column (1) by means of a parallelogram linkage. The column has a pivot pin (2) which forms a joint of a tube (3) which forms one of the links of the parallelogram. A second link is formed by a bar (5) which is pivoted by a pin (4) to a lug fixed to the column. This second link is fitted inside the tube forming the first link. The weight of the equipment and linkage is counter-balanced by a tension spring (6). ADVANTAGE - The fitting of the second linking inside the first link produces a compact arrangement which does not get in the way of the patient.

Description

Die Erfindung betrifft eine Haltevorrichtung für medizinische Beobachtungsgeräte, wobei das Beobachtungsgerät über zwei als Gelenkparallelogramm ausgebildete Tragarme schwenkbar an einer Säule befestigt ist und eine mit dem Gelenkparallelogramm ver­ bundene Feder zum Ausgleich des Gerätegewichts vorgesehen ist. Sie ist bei der Augenprüfung, aber auch in der Augenheilkunde und der Mikrochirurgie anwendbar.The invention relates to a holding device for medical Observation devices, the observation device having two as Articulated parallelogram designed pivot arms on a Column is attached and a ver with the joint parallelogram tied spring is provided to balance the weight of the device. She is in the eye exam, but also in ophthalmology and microsurgery applicable.

Bei Vorrichtungen zur Prüfung der Sehschärfe und des Binokular­ sehens ist es bekannt (DD-WP 2 26 187), für das rechte und das linke Auge des Patienten je ein separates Projektionssystem zur Abbildung von Testmarken und Korrekturlinsen vorzusehen, wobei jedes Projektionssystem um zwei jeweils senkrecht zueinander ver­ laufende Achsen schwenkbar und entlang dieser Achse verschiebbar ist.In devices for checking visual acuity and the binocular it is known (DD-WP 2 26 187), for the right and the left eye of the patient a separate projection system Provide image of test marks and correction lenses, whereby ver each projection system by two perpendicular to each other Running axes can be swiveled and moved along this axis is.

Unter anderem zur Positionierung des Patienten auf dem Untersuchungs­ stuhl ist es sinnvoll, die gesamte Projektionseinrichtung, vor­ zugsweise nach oben, wegzuschwenken. Among other things, for positioning the patient on the examination it makes sense to chair the entire projection device preferably upwards to swing away.  

Aufgrund der unsymmetrischen Lagerung der Projektionssysteme und des damit verbundenen extrem außermittigen Massenschwer­ punktes sind die Halterungen starken Belastungen, insbesondere Torsionskräften, ausgesetzt.Due to the asymmetrical mounting of the projection systems and the associated extremely eccentric mass heavy point are the brackets heavy loads, in particular Torsional forces.

Es ist bereits bekannt (DE-OS 30 35 165), bei optischen Beobach­ tungsgeräten ein verstellbares Stativ zu verwenden, das aus einem als Gelenkparallelogramm ausgebildeten Tragarm besteht. Ein solcher Parallelogrammarm mit U-förmigen Trägern kann ohne Deformation nur geringe Kräfte aufnehmen, da die erforderliche Torsionssteifigkeit nicht gegeben ist.It is already known (DE-OS 30 35 165), with optical observation an adjustable tripod to use a support arm designed as a parallelogram of the joint. Such a parallelogram arm with U-shaped supports can be without Deformation absorb only small forces because the required Torsional rigidity is not given.

Ziel der Erfindung ist eine Haltevorrichtung, die ein Verschwen­ ken des Gerätes realisiert, wobei das Platznehmen des Patienten ohne jegliche Behinderung erfolgt.The aim of the invention is a holding device that a wasting ken of the device, taking the patient's seat without any disability.

Aufgabe der Erfindung ist die Realisierung einer schwenkbaren Halterung unter Verwendung eines Parallelogrammarms, die eine hohe Torsionssteifigkeit aufweist.The object of the invention is the realization of a pivotable Bracket using a parallelogram arm, the one has high torsional rigidity.

Erfindungsgemäß wird die Aufgabe bei einer Haltevorrichtung nach dem Oberbegriff des Hauptanspruchs durch die kennzeich­ nenden Merkmale des ersten Anspruchs gelöst.According to the invention, the task with a holding device according to the preamble of the main claim by the character nenden features of the first claim solved.

Bevorzugte Weiterbildungen sind in den Unteransprüchen beschrie­ ben.Preferred further developments are described in the subclaims ben.

Durch die spezielle Ausführung des Parallelogrammarms werden die auftretenden Torsionskräfte von dem als Hohlkörper ausge­ bildeten Tragarm aufgenommen und dadurch eine ausreichende Fe­ stigkeit erreicht. Unerwünschte Deformationen werden dadurch vermieden. Überraschend hat sich gezeigt, daß die erfindungsge­ mäße Haltevorrichtung überall angewendet werden kann, wo der bisher übliche Parallelogrammarm Verwendung fand. Die Vorteile sind eine höhere Festigkeit bei möglicher Materialeinsparung und daraus folgendem geringeren Gewicht. Due to the special design of the parallelogram arm the torsional forces occurring from the hollow body formed support arm and thus sufficient Fe stability achieved. This will cause undesirable deformations avoided. Surprisingly, it has been shown that the fiction moderate holding device can be used wherever the previously used parallelogram arm was used. The advantages are higher strength with possible material savings and the resulting lower weight.  

Die Erfindung wird nachstehend anhand der schematischen Darstel­ lung in Fig. 1 näher erläutert.The invention is explained below with reference to the schematic presen- tation in Fig. 1.

An einer Säule 1, die seitlich neben dem nicht dargestelltem Pa­ tientenstuhl steht, ist an einer festen Drehachse 2 der als Hohl­ körper ausgebildete Tragarm 3 des Parallelogrammarms gelagert. Eine zweite Drehachse 4 ist in fester Beziehung zur Drehachse 2 in der Säule 1 gelagert. Sie bildet die Schwenkachse des zweiten Tragarms 5, der innerhalb des Tragarms 3 verläuft. An der Fort­ setzung des Tragarms 3 greift eine Zugfeder 6 an, die mit ihrem anderen Ende ebenfalls an Säule 1 fest gelagert ist.On a column 1 , which stands laterally next to the not shown Pa patient chair, the support arm 3 of the parallelogram arm, which is designed as a hollow body, is mounted on a fixed axis of rotation 2 . A second axis of rotation 4 is mounted in the column 1 in a fixed relationship to the axis of rotation 2 . It forms the pivot axis of the second support arm 5 , which runs within the support arm 3 . At the continuation of the support arm 3 engages a tension spring 6 , which is also fixed to the other end of column 1 .

Durch die Feder 6 wird das Gewicht des Tragarms und des zu schwen­ kenden Gerätes ausgeglichen.The spring 6 compensates for the weight of the support arm and the device to be pivoted.

Zur geräteseitigen Verbindung der beiden Arme des Parallelogramm­ arms ist eine Koppel 7 vorgesehen, deren Lagerung im Tragarm 3 als hohle Achse 8 ausgebildet ist.To connect the two arms of the parallelogram arm on the device side, a coupling 7 is provided, the mounting of which in the support arm 3 is designed as a hollow axis 8 .

In der hohlen Achse 8 sind zwei Traghülsen 9 und 10 gelagert, die zueinander und zu hohlen Achse 8 rotatorisch und translatorisch beweglich sind.In the hollow axis 8 , two support sleeves 9 and 10 are mounted, which are rotatable and translatory to each other and to the hollow axis 8 .

Die Traghülsen 9 und 10 tragen stielförmige Arme 11 und 12, die zur Halterung von zwei (gestrichelt angedeuteten) Projektoren 13 und 14 dienen.The support sleeves 9 and 10 carry arm-shaped arms 11 and 12 which serve to hold two (indicated by dashed lines) projectors 13 and 14 .

An der Koppel 7 sind zwei Stellgetriebe 15 und 16 befestigt, welche die rotatorische Bewegung je eines stielförmigen Armes über Kupplungsglieder 17 bewirken. Für Arm 11 ist das Kupplungs­ glied über einen zusätzlichen Hebel 18 mit Traghülse 10 verbun­ den.On the coupling 7 , two actuating gears 15 and 16 are fastened, which bring about the rotary movement of one arm-shaped arm via coupling members 17 . For arm 11 , the coupling member is verbun via an additional lever 18 with support sleeve 10 .

Beim Platznehmen des Patienten wird der Parallelogrammarm in eine obere Stellung geschwenkt (zum Beispiel durch manuelle Verschie­ bung mittels eines am Tragarm befestigten Griffes).When the patient is seated, the parallelogram arm is turned into one upper position swiveled (e.g. by manual shifting exercise using a handle attached to the support arm).

Claims (3)

1. Haltevorrichtung für medizinische Beobachtungsgeräte, vor­ zugsweise für die Augenprüfung, wobei das Beobachtungsgerät über zwei als Gelenkparallelogramm ausgebildete Tragarme schwenkbar an einer Säule befestigt ist und eine mit dem Gelenkparallelogramm verbundene Feder zum Ausgleich des Ge­ rätegewichts vorgesehen ist, dadurch gekennzeichnet, daß einer der beiden Tragarme als im wesentlichen geschlossenes Hohlprofil ausgebildet ist und der andere Tragarm im Innern des Hohlprofils verläuft.1. Holding device for medical observation devices, preferably for the eye examination, the observation device being pivotally attached to a column via two support arms designed as a parallelogram and a spring connected to the parallelogram to compensate for the weight of the device is provided, characterized in that one of the two Support arms is designed as an essentially closed hollow profile and the other support arm runs inside the hollow profile. 2. Haltevorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Feder im Innern der Säule angeordnet und mit ihr verbunden ist.2. Holding device according to claim 1, characterized in that the spring is placed inside the column and with it connected is. 3. Haltevorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Feder mit dem als Hohlprofil ausgebildeten Tragarm verbunden ist.3. Holding device according to claim 2, characterized in that the spring with the support arm designed as a hollow profile connected is.
DE3703424A 1986-04-01 1987-02-05 Supporting arm for sight testing equipment - has parallelogram linkage with one link fitted inside tubular link Withdrawn DE3703424A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD86288595A DD247377B5 (en) 1986-04-01 1986-04-01 HOLDING DEVICE FOR MEDICAL OBSERVATORS, PREFERABLY FOR EYE TESTING

Publications (1)

Publication Number Publication Date
DE3703424A1 true DE3703424A1 (en) 1987-10-08

Family

ID=5577754

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3703424A Withdrawn DE3703424A1 (en) 1986-04-01 1987-02-05 Supporting arm for sight testing equipment - has parallelogram linkage with one link fitted inside tubular link

Country Status (2)

Country Link
DD (1) DD247377B5 (en)
DE (1) DE3703424A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3809266A1 (en) * 1988-03-19 1988-09-22 Mueholos Werk Alfred Mueller G SWING ARM FOR DEVICES, IN PARTICULAR MEDICAL
WO2024033747A1 (en) * 2022-08-08 2024-02-15 Alcon Inc. Support assembly for ophthalmic visualization system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3809266A1 (en) * 1988-03-19 1988-09-22 Mueholos Werk Alfred Mueller G SWING ARM FOR DEVICES, IN PARTICULAR MEDICAL
US5004368A (en) * 1988-03-19 1991-04-02 Ewald Warga Pivot arm for apparatus, particularly medical apparatus
WO2024033747A1 (en) * 2022-08-08 2024-02-15 Alcon Inc. Support assembly for ophthalmic visualization system

Also Published As

Publication number Publication date
DD247377B5 (en) 1993-12-09
DD247377A1 (en) 1987-07-08

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Legal Events

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8139 Disposal/non-payment of the annual fee