EP0287575A1 - Radiation-permeable body support - Google Patents

Radiation-permeable body support

Info

Publication number
EP0287575A1
EP0287575A1 EP87905164A EP87905164A EP0287575A1 EP 0287575 A1 EP0287575 A1 EP 0287575A1 EP 87905164 A EP87905164 A EP 87905164A EP 87905164 A EP87905164 A EP 87905164A EP 0287575 A1 EP0287575 A1 EP 0287575A1
Authority
EP
European Patent Office
Prior art keywords
covering
radiation
body support
frame
support according
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Withdrawn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
EP87905164A
Other languages
German (de)
French (fr)
Inventor
Robert Rottermann
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.)
Rottermann AG
Original Assignee
Rottermann AG
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 Rottermann AG filed Critical Rottermann AG
Publication of EP0287575A1 publication Critical patent/EP0287575A1/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like
    • A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body
    • A61B6/0442—Supports, e.g. tables or beds, for the body or parts of the body made of non-metallic materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy

Definitions

  • the invention relates to a radiolucent body support which can be used as part of the lying surface in a patient couch intended for radiation therapy, consisting of a frame with a transparent covering, a central web of the frame dividing the supporting surface into two wings.
  • This body support is used instead of part of the normal lying surface if the patient's body part to be treated is to be irradiated in a treatment phase both directly and from the underside of the support, for which purpose a radiation source, e.g. an X-ray apparatus, which is movable on a circular path in a vertical plane.
  • a radiation source e.g. an X-ray apparatus
  • the wings should be transparent so that the treatment beam can be visibly aligned with the treatment area optically marked on the body part using a pilot light and corrected in the event of unforeseen changes in the patient's position.
  • a known body support of the type mentioned has a rectangular frame with a central web that divides the support into two wings. For each wing, the frame carries a covering made of crossed strings which are anchored to frame parts running in parallel.
  • the frame must be of stable construction to absorb the clamping forces. This requires a material thickness for the frame parts that dampens the radiation too much. The frame is therefore on the side in a backdrop - 2nd
  • a radiolucent body support in which, according to the invention, the frame is H-shaped and at least one of the wings is provided with a covering which is anchored exclusively on the two parallel spars which are connected to one another by the central web. This eliminates the frame parts, which are disruptive due to their radiation-damping effect, and no means for lateral displacement of the frame are required.
  • the spars of the H-shaped frame preferably have a pretension so that they run parallel to one another under the force of the covering.
  • At least one string made of radiation-resistant material for example made of plastic, is provided for covering the wing, which stretches the wing in parallel sections with uniform intervals in a meandering course. Can at the ends of the spars' the covering be enhanced by, for example, another gene string in several Windun ⁇ is stretched from island to island.
  • the covering can be covered with a transparent, radiation-resistant cover film, which is also between the two bars the frame is clamped.
  • Another possibility is to provide a one-part or multi-part, transparent carrier film instead of strings for the covering, which can be reinforced at most on the outer edge connecting the ends of the two spars by a string covering.
  • Fig. 2 top view of the body support
  • Fig. 3 Detailed view of the tensioning device for a cover film on a larger scale.
  • the radiolucent body support shown has an H-shaped frame 1, which consists of two parallel bars 2 and 3 and a central web 4 connecting them and is preferably made of metal, e.g. is made from a tough, hard aluminum alloy, or from a fiber-reinforced plastic.
  • the frame 1 carries a transparent covering, which is divided into two wings 5 and 6 separated by the central web 4, which together form the bearing surface.
  • a string 7 or 8 made of radiation-resistant plastic is provided for covering the two wings, which straddles the wing in question in parallel sections with uniform intervals in a meandering course.
  • the ends of the strings 7 and 8 provided with knots 9 and 10 and the reversing loops 11 are anchored to the bars 2 and 3 of the frame 1, the reversing loops 11 being laid in semicircular grooves in the bars are. Instead of one string each, two or more strings can be guided in parallel.
  • All sections of the strings 7 and 8 are tensioned so strongly, for example with 500 N at a section length of 50 cm, that the sag only reaches a few millimeters when loaded by a patient's body part lying on top.
  • the spars In order to compensate for the deflection of the spars 1 and 2 under the load from the covering, the spars have a pretension.
  • the stringing is reinforced by a further string 12 or 13, which is stretched from spar to spar in several turns which lie one above the other.
  • the entire support surface is covered with a cover film 14, which is also anchored to the two spars 2 and 3 of the frame 1. Details of the tensioning device used to tension the cover film can be seen in FIG. 3.
  • the spars 1 and 2 have a semi-cylindrical longitudinal groove 15 on their underside.
  • a tensioning roller 16 is mounted therein on both sides of the central web 4 and held with a clamping bracket 17.
  • Each tension roller 16 has on its periphery a longitudinal slot 18 into which an edge portion of the.
  • Tensioning rollers wrapping cover film 14 is inserted.
  • each tensioning roller 16 is provided on the end faces with a hexagon hole 19 for inserting an angled hexagon key.
  • the tensioning roller 16 together with the relevant edge part of the cover film can be fixed in the longitudinal groove 15 on the bar by pressing the clamping bracket 17 by means of screws arranged along the same, one of which is shown and designated 20.
  • a one-part or multi-part, transparent carrier film can be provided for the covering.
  • a one-part or multi-part, transparent carrier film can be provided for the covering.
  • a one-part or multi-part, transparent carrier film can be provided for the covering.
  • a one-part or multi-part, transparent carrier film can be provided for the covering.
  • vigslegiliclvdie same means can be used, as they have been described for tensioning the 'cover sheet before.
  • the frame of a patient couch intended for radiation therapy normally has a cantilevered beam over which the couch surface extends.
  • the body support described is intended to be placed on this self-supporting beam, where it forms part of the lying surface.
  • two guide jaws 21 and a guide pin 22 are attached to the ends of the central web 4 of the frame 1, which cooperate with corresponding guide surfaces on the self-supporting beam 23 indicated by dash-dotted lines and enable precise positioning of the body support.
  • the dash-dotted line 24 indicates the trace of the vertical plane in which the circular path of the radiation apparatus runs.
  • the frame may be expedient to equip the frame with radiation-permeable covering only on one of the two wings and to design the other wing in the form of a radiation-impermeable plate.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

Le support fait partie d'un lit de patient pour thérapie par rayonnement. Ce support est formé d'un cadre en forme de H (1) avec deux traverses (2, 3) parallèles réunies par une tige (4) médiane. Les surfaces porteuses (5, 6) séparées par la tige sont munies d'une nappe transparente de cordage sous tension (7, 8). Cette nappe est fixée exclusivement sur les deux traverses (2, 3). Les bords du support parallèles à la tige médiane (4) ne comportent pas de parties absorbant le rayonnement. Ainsi un traitement dynamique par rayonnement peut se dérouler de façon ininterrompue si la source de rayonnement passe d'un côté à l'autre du support.The support is part of a radiation therapy patient bed. This support is formed of an H-shaped frame (1) with two parallel crosspieces (2, 3) joined by a middle rod (4). The load-bearing surfaces (5, 6) separated by the upper are provided with a transparent layer of rope under tension (7, 8). This sheet is fixed exclusively on the two crosspieces (2, 3). The edges of the support parallel to the middle rod (4) have no radiation-absorbing parts. Thus, a dynamic treatment by radiation can take place uninterruptedly if the radiation source passes from one side of the support to the other.

Description

Strahlendurchlässige Körperauflage Radiolucent body pad
Die Erfindung betrifft eine strahlendurchlässige Körperauflage, die als Teil der Liegefläche in eine für die Strahlentherapie be¬ stimmte Patientenliege einsetzbar ist, bestehend aus einem Rahmen mit einer durchsichtigen Bespannung, wobei ein Mittelsteg des Rahmens die Auflagefl che in zwei Tragflächen teilt.The invention relates to a radiolucent body support which can be used as part of the lying surface in a patient couch intended for radiation therapy, consisting of a frame with a transparent covering, a central web of the frame dividing the supporting surface into two wings.
Diese Körperauflage wird anstelle eines Teils der normalen Liege¬ fläche eingesetzt, wenn.der zu behandelnde Körperteil eines Patienten in einer Behandlungsphase sowohl direkt als auch von der Unterseite der Auflage her bestrahlt werden soll, wozu in der Regel eine Strahlenquelle, z.B. ein Röntgenapparat, dient, der auf einer Kreisbahn in einer Vertikalebene bewegbar ist.This body support is used instead of part of the normal lying surface if the patient's body part to be treated is to be irradiated in a treatment phase both directly and from the underside of the support, for which purpose a radiation source, e.g. an X-ray apparatus, which is movable on a circular path in a vertical plane.
Die Tragflächen sollen durchsichtig sein, damit der Behandlungs¬ strahl mit einem Pilotlicht sichtbar auf den am Körperteil optisch markierten Behandlungsbereich ausgerichtet und bei unvorherge- sehenen Lageänderungen des Patienten korrigiert werden kann.The wings should be transparent so that the treatment beam can be visibly aligned with the treatment area optically marked on the body part using a pilot light and corrected in the event of unforeseen changes in the patient's position.
Eine bekannte Körperauflage der eingangs genannten Art besitzt einen rechteckigen Rahmen mit einem Mittelsteg, der die Auflage in zwei Tragflächen teilt. Der Rahmen trägt für jede Tragfläche eine Bespannung aus gekreuzten Saiten, die an paarweise parallel ver¬ laufenden Rahmenteilen verankert sind. Der Rahmen muss zur Auf¬ nahme der Spannkräfte stabil konstruiert sein. Dazu ist für die Rahmenteile eine Materialstärke erforderlich, welche die Strahlung zu stark dämpft. Der Rahmen ist deshalb in einer Kulisse seitlich - 2A known body support of the type mentioned has a rectangular frame with a central web that divides the support into two wings. For each wing, the frame carries a covering made of crossed strings which are anchored to frame parts running in parallel. The frame must be of stable construction to absorb the clamping forces. This requires a material thickness for the frame parts that dampens the radiation too much. The frame is therefore on the side in a backdrop - 2nd
verschiebbar gelagert, so dass der MittelSteg und die zu diesem parallel verlaufenden äusseren Rahmenteile gemeinsam jeweils so positioniert werden können, dass sie bei statischer Strahlenbe¬ handlung ausserhalb des Strahlenbereiches liegen. Besonders stö- -"* rend ist aber die strahlendämpfende Wirkung der genannten äusseren Rahmenteile bei dynamischer Strahlenbehandlung, indem der Behand¬ lungsvorgang beim Uebergang der Bestrahlungsrichtung von der einen auf die andere Seite der Auflagefläche" jeweils unterbrochen wird.slidably mounted, so that the central web and the outer frame parts running parallel to it can each be positioned together such that they lie outside the radiation area in the case of static radiation treatment. Especially STOE - "* but rend the radiation damping effect of said outer frame parts under dynamic radiation treatment by the Behand¬ development process in the transition of the irradiation direction from one side to the other side of the support surface" is interrupted in each case.
Um diesen Nachteil zu vermeiden, wird eine strahlendurchlässige Körperauflage vorgeschlagen, bei der erfinduπgsgemäss der Rahmen H-förrπig ausgebildet ist und wenigstens eine der Tragflächen mit einer Bespannung versehen ist, die ausschliesslich an den beiden parallelen, durch den Mittelsteg miteinander verbundenen Holmen verankert ist. Damit entfallen die durch ihre strahlendämpfende Wirkung störenden Rahmenteile, und es sind keine Mittel zur seit¬ lichen Verschiebung des Rahmens erforderlich.In order to avoid this disadvantage, a radiolucent body support is proposed, in which, according to the invention, the frame is H-shaped and at least one of the wings is provided with a covering which is anchored exclusively on the two parallel spars which are connected to one another by the central web. This eliminates the frame parts, which are disruptive due to their radiation-damping effect, and no means for lateral displacement of the frame are required.
Die Holme des H-förmigen Rahmens weisen vorzugsweise eine Vor- Spannung auf, so dass sie unter der Kraftwirkung der Bespannung parallel zueinander verlaufen.The spars of the H-shaped frame preferably have a pretension so that they run parallel to one another under the force of the covering.
Für die Bespannung der Tragfläche ist in einer bevorzugten Aus¬ führungsform wenigstens eine Saite aus strahlenfestem Material, z.B. aus Kunststoff, vorgesehen, welche die Tragfläche in paral¬ lelen Abschnitten mit gleichmässigen Abständen in mäanderförmigem Verlauf überspannt. An den Enden der Holme' kann die Bespannung verstärkt sein, indem z.B. eine weitere Saite in mehreren Windun¬ gen, von Holm zu Holm gespannt ist.In a preferred embodiment, at least one string made of radiation-resistant material, for example made of plastic, is provided for covering the wing, which stretches the wing in parallel sections with uniform intervals in a meandering course. Can at the ends of the spars' the covering be enhanced by, for example, another gene string in several Windun¬ is stretched from island to island.
Um an der vom Körper des Patienten beaufschlagten Auflagefl che eine bessere Druckverteilung zu erzielen und um zu vermeiden, dass die Saitenabschnitte bei kleinfl chiger Belastung seitlich auswei¬ chen, kann die Bespannung mit einer durchsichtigen, strahlenfesten Deckfolie belegt sein, welche ebenfalls zwischen den beiden Holmen des Rahmens verspannt ist.In order to achieve a better pressure distribution on the support surface acted upon by the patient's body and to avoid that the string sections diverge laterally under small-area loading, the covering can be covered with a transparent, radiation-resistant cover film, which is also between the two bars the frame is clamped.
Eine andere Möglichkeit besteht darin, anstelle von Saiten für die Bespannung eine ein- oder mehrteilige, durchsichtige Trägerfolie vorzusehen, die allenfalls an dem äusseren, die Enden der beiden Holme verbindenden Rand durch eine Saitenbespannung verstärkt sein kann.Another possibility is to provide a one-part or multi-part, transparent carrier film instead of strings for the covering, which can be reinforced at most on the outer edge connecting the ends of the two spars by a string covering.
Die Erfindung wird nachstehend anhand der Zeichnung an einem Ausführungsbeispiel näher erläutert. In der Zeichnung zeigen:The invention is explained below with reference to the drawing using an exemplary embodiment. The drawing shows:
Fig. 1 einen Querschnitt durch die Körperauf age,1 shows a cross section through the body position,
Fig. 2 Draufsicht der Körperauflage undFig. 2 top view of the body support and
Fig. 3 Detailansicht der Spannvorrichtung für eine Deckfolie in grösserem Massstab.Fig. 3 Detailed view of the tensioning device for a cover film on a larger scale.
Die dargestellte strahlendurchlässige Körperauflage weist einen H-förmig ausgebildeten Rahmen 1 auf, der aus zwei parallelen Hol¬ men 2 und 3 und einem diese miteinander verbindenden Mittelsteg 4 besteht und vorzugsweise aus Metall, z.B. aus einer zähharten Alu¬ miniumlegierung, oder aus einem faserverstärkten Kunststoff herge¬ stellt ist.The radiolucent body support shown has an H-shaped frame 1, which consists of two parallel bars 2 and 3 and a central web 4 connecting them and is preferably made of metal, e.g. is made from a tough, hard aluminum alloy, or from a fiber-reinforced plastic.
Der Rahmen 1 trägt eine durchsichtige Bespannung, die sich auf zwei durch den Mittelsteg 4 getrennte Tragflächen 5 und 6 ver¬ teilt, welche zusammen die Auflagefläche bilden. Für die Bespan¬ nung der beiden Tragflächen ist je eine Saite 7 bzw. 8 aus strah- lenfestem Kunststoff aterial vorgesehen, welche die betreffende Tragfläche in parallelen Abschnitten mit gleich ässigen Abständen in mäanderförmigem Verlauf überspannt. Die mit Knoten 9 und 10 versehenen Enden der Saiten 7 und 8 und die Umkehrschleifen 11 sind an den Holmen 2 und 3 des Rahmens 1 verankert, wobei die Um- kehrschleifen 11 in halbkreisförmigen Nuten in den Holmen verlegt sind. Anstelle jeweils einer Saite können auch zwei oder mehr Saiten parallel geführt sein. Sämtliche Abschnitte der Saiten 7 und 8 sind so stark gespannt, z.B. mit 500 N bei einer Abschnitt¬ länge von 50 cm, dass der Durchhang bei Belastung durch den auf- liegenden Körperteil eines Patienten nur wenige Millimeter er¬ reicht. Um die Durchbiegung der Holme 1 und 2 unter der Belastung durch die Bespannung zu kompensieren, weisen die Holme eine Vor¬ spannung auf. An den Enden der Holme 1 und 2 ist die Bespannung durch eine weitere Saite 12 bzw. 13 verstärkt, welche in mehreren übereinander!legenden Windungen von Holm zu Holm gespannt ist.The frame 1 carries a transparent covering, which is divided into two wings 5 and 6 separated by the central web 4, which together form the bearing surface. A string 7 or 8 made of radiation-resistant plastic is provided for covering the two wings, which straddles the wing in question in parallel sections with uniform intervals in a meandering course. The ends of the strings 7 and 8 provided with knots 9 and 10 and the reversing loops 11 are anchored to the bars 2 and 3 of the frame 1, the reversing loops 11 being laid in semicircular grooves in the bars are. Instead of one string each, two or more strings can be guided in parallel. All sections of the strings 7 and 8 are tensioned so strongly, for example with 500 N at a section length of 50 cm, that the sag only reaches a few millimeters when loaded by a patient's body part lying on top. In order to compensate for the deflection of the spars 1 and 2 under the load from the covering, the spars have a pretension. At the ends of the spars 1 and 2, the stringing is reinforced by a further string 12 or 13, which is stretched from spar to spar in several turns which lie one above the other.
Die ganze Auflagefl che ist mit einer Deckfolie 14 überspannt, welche ebenfalls an den beiden Holmen 2 und 3 des Rahmens 1 ver¬ ankert ist. Einzelheiten der zum Spannen der Deckfolie dienenden Spannvorrichtung sind in Fig. 3 ersichtlich. Die Holme 1 und 2 weisen an ihrer Unterseite eine halbzylindrische Längsrille 15 auf. Darin ist zu beiden Seiten der Mittelstegs 4 je eine Spann¬ walze 16 gelagert und mit einer Klemmbride 17 gehalten. Jede Spannwalze 16 weist an ihrem Umfang einen Längsschlitz 18 auf, in den eine Randpartie der die. Spannwalzen umschlingenden Deckfolie 14 eingelegt ist. Zum Drehender Spannwalzen bei gelöster Klemm¬ bride 17 und Erzeugen der Spannkraft ist jede Spannwalze 16 an den Stirnseiten mit einem Sechskantloch 19 zum Einsetzen eines abge¬ winkelten Sechkantschlüssels versehen. Im gespannten Zustand der Deckfolie 14 lässt sich die Spannwalze 16 zusammen mit der betref¬ fenden Randpartie der Deckfolie durch Andrücken der Klemmbride 17 mittels längs derselben angeordneter Schrauben, von denen eine dargestellt und mit 20 bezeichnet ist, in der Längsrille 15 am Holm fixieren.The entire support surface is covered with a cover film 14, which is also anchored to the two spars 2 and 3 of the frame 1. Details of the tensioning device used to tension the cover film can be seen in FIG. 3. The spars 1 and 2 have a semi-cylindrical longitudinal groove 15 on their underside. A tensioning roller 16 is mounted therein on both sides of the central web 4 and held with a clamping bracket 17. Each tension roller 16 has on its periphery a longitudinal slot 18 into which an edge portion of the. Tensioning rollers wrapping cover film 14 is inserted. To turn the tensioning rollers when the clamping bride 17 is released and to generate the tensioning force, each tensioning roller 16 is provided on the end faces with a hexagon hole 19 for inserting an angled hexagon key. In the tensioned state of the cover film 14, the tensioning roller 16 together with the relevant edge part of the cover film can be fixed in the longitudinal groove 15 on the bar by pressing the clamping bracket 17 by means of screws arranged along the same, one of which is shown and designated 20.
Für die Bespannung kann anstelle von Saiten eine ein- oder mehr¬ teilige, durchsichtige Trägerfolie vorgesehen sein. Zum Spannen der Trägerfolie können grundsätzliclvdie gleichen Mittel verwendet werden, wie sie zum Spannen der' Deckfolie zuvor beschrieben worden sind. Das Gestell einer für die Strahlentherapie bestimmten Patienten¬ liege weist normalerweise einen freitragenden Balken auf, über den sich die Liegefläche ausdehnt. Die beschriebene Körperauflage ist zum Aufsetzen auf diesen freitragenden Balken bestimmt, wo sie einen Teil der Liegefläche bildet. Dazu sind an den Enden des MittelSteges 4 des Rahmens 1 je zwei Führungsbacken 21 und ein Führungsbolzen 22 angebracht, welche mit entsprechenden Führungs¬ flächen an dem strichpunktiert angedeuteten freitragenden Balken 23 zusammenwirken und eine genaue Positionierung der Körperauflage ermöglichen.Instead of strings, a one-part or multi-part, transparent carrier film can be provided for the covering. For clamping the support film grundsätzliclvdie same means can be used, as they have been described for tensioning the 'cover sheet before. The frame of a patient couch intended for radiation therapy normally has a cantilevered beam over which the couch surface extends. The body support described is intended to be placed on this self-supporting beam, where it forms part of the lying surface. For this purpose, two guide jaws 21 and a guide pin 22 are attached to the ends of the central web 4 of the frame 1, which cooperate with corresponding guide surfaces on the self-supporting beam 23 indicated by dash-dotted lines and enable precise positioning of the body support.
In Fig. 2 deutet die strichpunktierte Linie 24 die Spur der Vertikalebene an, in der die Kreisbahn des Strahlenapparates verl uft.2, the dash-dotted line 24 indicates the trace of the vertical plane in which the circular path of the radiation apparatus runs.
Unter Umständen kann es zweckmässig sein, den Rahmen nur.an einer der beiden Tragflächen mit einer strahlendurchlässigen Bespannung auszurüsten und die andere Tragfläche in Form einer strahlenun¬ durchlässigen Platte auszubilden. Under certain circumstances, it may be expedient to equip the frame with radiation-permeable covering only on one of the two wings and to design the other wing in the form of a radiation-impermeable plate.

Claims

PatentansprücheClaims
Strahlendurchlässige Körperauflage, die als Teil der Liegefläche in eine für die Strahlentherapie bestimmte Patientenliege einsetz¬ bar ist, bestehend aus einem Rahmen mit einer durchsichtigen Be¬ spannung, wobei ein Mittelsteg des Rahmens die Auflagefläche in zwei Tragflächen teilt, dadurch gekennzeichnet, dass der Rahmen (1) H-förmig ausgebildet ist und wenigstens eine der Tragflächen (5, 6) mit einer Bespannung versehen ist, die ausschliesslich an den beiden parallelen, durch den MittelSteg (4) miteinander ver¬ bundenen Holmen (2, 3.) verankert ist.Radiolucent body support, which can be used as part of the lying surface in a patient couch intended for radiation therapy, consisting of a frame with a transparent covering, a central web of the frame dividing the supporting surface into two wings, characterized in that the frame ( 1) is H-shaped and at least one of the wings (5, 6) is provided with a covering which is anchored exclusively on the two parallel bars (2, 3) connected to one another by the central web (4).
z^z ^
Körperauflage nach Anspruch 1, dadurch gekennzeichnet, dass die Holme (2, 3) des Rahmens (1) eine Vorspannung aufweisen.Body support according to claim 1, characterized in that the bars (2, 3) of the frame (1) have a pretension.
i__ Körperauflage nach Anspruch 1, dadurch gekennzeichnet, dass für die Bespannung der Tragfläche (5, 6) wenigstens eine Saite (7, 8) aus strahlenfestem Material vorgesehen ist, welche die Tragfläche in parallelen Abschnitten mit gleichmässigen Abständen in mäander- förmigem Verlauf überspannt.Body support according to claim 1, characterized in that at least one string (7, 8) made of radiation-resistant material is provided for covering the wing (5, 6), which straddles the wing in parallel sections with uniform intervals in a meandering course.
4^4 ^
Körperauflage nach Anspruch 3, dadurch gekennzeichnet, dass dieBody support according to claim 3, characterized in that the
Bespannung an den Enden der Holme verstärkt ist. i_.Covering is reinforced at the ends of the spars. i_.
Körperauflage nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass die Bespannung mit einer durchsichtigen, strahlenfesten DeckfolieBody support according to claim 3 or 4, characterized in that the covering with a transparent, radiation-resistant cover film
(14) belegt ist, welche ebenfalls zwischen den beiden Holmen (2, 3) des Rahmens (1) verspannt ist.(14) is occupied, which is also clamped between the two bars (2, 3) of the frame (1).
i..i ..
Körperauflage nach Anspruch 1, dadurch gekennzeichnet, dass für die Bespannung eine ein- oder mehrteilige, durchsichtige Träger- folie vorgesehen ist.Body support according to claim 1, characterized in that a single or multi-part, transparent carrier film is provided for the covering.
7^7 ^
Körperauflage nach Anspruch 6, dadurch gekennzeichnet, dass die Trägerfolie an dem äusseren, die Enden der beiden Holme verbinden- den Rand durch eine Saitenbespannung verstärkt ist. Body support according to claim 6, characterized in that the carrier film is reinforced on the outer edge connecting the ends of the two spars by a string covering.
EP87905164A 1986-10-29 1987-08-17 Radiation-permeable body support Withdrawn EP0287575A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4283/86 1986-10-29
CH428386 1986-10-29

Publications (1)

Publication Number Publication Date
EP0287575A1 true EP0287575A1 (en) 1988-10-26

Family

ID=4273222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87905164A Withdrawn EP0287575A1 (en) 1986-10-29 1987-08-17 Radiation-permeable body support

Country Status (4)

Country Link
US (1) US4991243A (en)
EP (1) EP0287575A1 (en)
CA (1) CA1280833C (en)
WO (1) WO1988003004A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5537454A (en) * 1994-12-27 1996-07-16 Med-Tec, Inc. Radiation therapy grid for use with treatment couch
SE517397C2 (en) * 2000-09-28 2002-06-04 Ao S Metall & Mek Verkst S Ab Patient table and stand with radiation permeable longitudinal edges
US6907629B2 (en) * 2001-07-13 2005-06-21 Diacor, Inc. Diagnostic imaging tabletop
US6880886B2 (en) * 2002-09-12 2005-04-19 Steelcase Development Corporation Combined tension and back stop function for seating unit
JP2007514461A (en) * 2003-10-16 2007-06-07 カリプソー メディカル テクノロジーズ インコーポレイテッド Patient support system for radiation therapy system and other uses
US7836890B2 (en) * 2003-10-17 2010-11-23 Diacor, Inc. Systems for immobilization of a patient for diagnosis and treatment of breast tissue
US20110185503A1 (en) * 2010-01-29 2011-08-04 William Beaumont Hospital Local Adjustment Device for Radiotherapy

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US198892A (en) * 1878-01-01 Improvement in bed-bottoms
US532850A (en) * 1895-01-22 Invalid s bed-rest
US1263611A (en) * 1916-11-04 1918-04-23 Jethro W Scroggin Surgical and bathing apparatus.
US1389480A (en) * 1921-01-28 1921-08-30 Berman Frank Attachment for hospital-beds
US1529490A (en) * 1924-06-04 1925-03-10 Lolmaugh Emanuel Combination headrest and table for invalids' beds
US2429865A (en) * 1944-07-17 1947-10-28 Albert L Bresch Patient-lift
US2670517A (en) * 1950-03-22 1954-03-02 Batesville Casket Company Adjustable-bed casket
BE510346A (en) * 1950-07-21
US2667169A (en) * 1952-08-21 1954-01-26 Nicholas M Kambourakis Sun bathing apparatus
FR1214734A (en) * 1959-01-31 1960-04-11 Support layer for chi-ray examination device
FR77436E (en) * 1960-03-31 1962-03-02 Removable bed backrest
US3373454A (en) * 1967-02-08 1968-03-19 David T. Curtis Device for moving injured persons
US3609357A (en) * 1969-04-29 1971-09-28 Westinghouse Electric Corp Patient-tilting device for an x-ray table
DE2153363A1 (en) * 1971-10-26 1973-05-03 Siemens Ag PATIENT POSITIONING TABLE
US3814414A (en) * 1972-07-24 1974-06-04 H Chapa Medical examination table
US3868103A (en) * 1973-04-24 1975-02-25 Millet Roux & Cie Ltee Surgical and examination table structure
US4395786A (en) * 1981-06-01 1983-08-02 Casey John D Adjustable support frame for an adjustable bed or the like
US4456301A (en) * 1981-08-17 1984-06-26 Homecrest Industries Incorporated Furniture construction
SE462013B (en) * 1984-01-26 1990-04-30 Kjell Olov Torgny Lindstroem TREATMENT TABLE FOR RADIOTHERAPY OF PATIENTS
US4750784A (en) * 1987-06-26 1988-06-14 Omni Products International, Inc. Chairs having detachable backs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8803004A1 *

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WO1988003004A1 (en) 1988-05-05
CA1280833C (en) 1991-02-26
US4991243A (en) 1991-02-12

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