EP0226014A1 - X-ray diagnostic apparatus having an X-ray image intensifier - Google Patents

X-ray diagnostic apparatus having an X-ray image intensifier Download PDF

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Publication number
EP0226014A1
EP0226014A1 EP86115164A EP86115164A EP0226014A1 EP 0226014 A1 EP0226014 A1 EP 0226014A1 EP 86115164 A EP86115164 A EP 86115164A EP 86115164 A EP86115164 A EP 86115164A EP 0226014 A1 EP0226014 A1 EP 0226014A1
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EP
European Patent Office
Prior art keywords
hood
image intensifier
ray
ray image
ring
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.)
Granted
Application number
EP86115164A
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German (de)
French (fr)
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EP0226014B1 (en
Inventor
Georg Dipl.-Ing. Beiküfner
Arthur Dipl.-Ing. Gall
Adelbert Dipl.-Ing. Kupfer
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Siemens AG
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Siemens AG
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/54—Protecting or lifetime prediction
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/64—Circuit arrangements for X-ray apparatus incorporating image intensifiers

Definitions

  • the invention relates to an X-ray diagnostic system with an X-ray image intensifier, in which a hood is resiliently mounted on all sides of the housing of the X-ray image intensifier in front of its fluorescent screen, which acts on a number of switching devices which are arranged such that a switch actuation both in the direction of the fluorescent screen surface as well as perpendicular to it and in any intermediate direction acting forces on the hood, a ring is attached to the X-ray image intensifier housing, which carries a plurality of staggered switching devices, the actuators of which are resiliently pressed against the inner wall of the hood.
  • each switching device has a switching lever which is pivotally connected to the ring about an approximately perpendicular and a radial to the entrance fluorescent axis and acts on two switches whose actuation directions coincide with these axes or are parallel to them.
  • the structure of the switching device is accordingly complicated.
  • the invention has for its object an X-ray diagnostic system of the type mentioned with regard to simplify the design of the switching device compared to the prior art.
  • each switching device has at least one pivotable about a tangential to the ring or parallel to a tangent axis lever, which actuates a switch with one end and with its other end at an oblique angle on a slope bears against the inner surface of the hood in such a way that it is actuated when the hood is pressed.
  • the actuating lever of each switching device is only pivoted about a single axis. It is pivoted securely on the hood within the force directions to switch off the drive motor for the X-ray image intensifier.
  • the hood can be held centrally by wires which are resilient in their longitudinal direction and which run tangentially to the ring and are fastened to the ring. Accordingly, it can be deflected from its central position when hitting an obstacle and returns to this position due to the spring-mounted wires.
  • a particularly simple attachment of the ring to the housing of the X-ray image intensifier is possible if a tensioning band is assigned to the ring, by means of which knobs can be pressed against the outside of the X-ray image intensifier housing.
  • the x-ray tube 1 shows an x-ray tube 1, the radiation of which emerges from a primary radiation diaphragm 2 and shines through a patient 4 lying on a couch 3. Images are generated on the input fluorescent screen 5a of an X-ray image intensifier 5, which images are recorded by a television camera 6 on the output fluorescent screen of the X-ray image intensifier 5 and are displayed on a monitor 8 via a television center 7.
  • the x-ray tube 1 is fed by an x-ray generator 9.
  • the X-ray image intensifier 5 is seated in a holder 10, which is adjustable relative to the patient bed 3 by a motor 11.
  • a hood 12 is spring-mounted coaxially to the X-ray image intensifier 5, which acts on a number of switching devices explained in more detail in connection with FIGS. 2 to 4, which are arranged such that a switch actuation both in Direction of the fluorescent screen surface and perpendicularly acting on the hood 12 forces. Accordingly, the motor 11 is stopped in every practically occurring case of the hood 12 abutting the patient 4 or the patient bed 3.
  • Figures 2 to 4 show that the hood 12 encloses a ring 13 attached to the X-ray image intensifier housing.
  • the ring 13 can with the X-ray image intensifier screwed housing or can also be clamped on the x-ray image intensifier housing with the aid of a tensioning band by pressing knobs against the outside of the x-ray image intensifier housing.
  • the ring 13 carries five switching devices 15 to 19, each offset by 72 ° from one another. The construction of the switching devices 15 to 19 is shown with reference to the switching device 15 in FIG.
  • the switching device 15 has two microswitches 20, 21 attached to the ring 13, which can be actuated by an angled plate 22.
  • the plate 22 in turn can be actuated by a lever 23 which can be pivoted about an axis 23a lying parallel to a tangent to the ring 13.
  • the lever 23 presses with its one end 24 from above against a shoulder 25 of the plate 22, which in turn presses the actuators of the switches 20, 21 in the idle state.
  • a roller 27 is mounted, with which the lever 23 is pressed resiliently against the inside of the hood 12.
  • the roller 27 is assigned a slope 28 on the inside of the hood 12.
  • the bevel 28 moves the lever 23 somewhat clockwise, so that it releases the actuators of the switches 20, 21 via the plate 22, whereby the drive motor 11 is switched off.
  • the lever 23 is also pivoted via the roller 27 in the direction described to interrupt the engine.
  • Figures 3 and 4 show that with a particularly simple structure, a safe switch actuation with forces on the hood 12 takes place within a range of about 180 ° (hemisphere).
  • the hood 12 is held centrally by wires which are resiliently mounted in their longitudinal direction, one of which is shown and designated 29. These wires 29 etc. run tangentially to the ring 13 and are attached to it.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

Die Erfindung betrifft eine Röntgendiagnostikanlage mit einem Röntgenbildverstärker, vor dessen Eingangsleucht­schirm eine Haube (12) allseitig federnd gelagert ist, die auf eine Anzahl von Schaltvorrichtungen (15) ein­wirkt, die derart angeordnet sind, daß eine Schalterbe­tätigung sowohl bei in Richtung der Leuchtschirmfläche als auch senkrecht dazu und in jeder Zwischenrichtung auf die Haube (12) einwirkenden Kräften erfolgt. Jede Schalt­vorrichtung (15) weist einen Hebel (23) auf, welcher mit seinem einen Ende einen Schalter (20) betätigt und mit seinem anderen, um einen stumpfen Winkel abgewinkelten Ende (26) an einer Schräge (28) an der Innenfläche der Haube (12) derart anliegt, daß er bei einem Druck auf die Haube (12) betätigt wird. Der Hebel (23) ist um eine parallel zu einer Tangente an den Ring (13) verlaufende Achse schwenkbar gelagert.

Figure imgaf001
The invention relates to an X-ray diagnostic system with an X-ray image intensifier, in front of the input fluorescent screen, a hood (12) is resiliently mounted on all sides, which acts on a number of switching devices (15) which are arranged such that a switch actuation both in the direction of the fluorescent screen surface and vertically for this purpose and in any intermediate direction acting on the hood (12). Each switching device (15) has a lever (23) which actuates a switch (20) with one end and with the other end (26), which is angled at an obtuse angle, on a bevel (28) on the inner surface of the hood ( 12) rests in such a way that it is actuated when the hood (12) is pressed. The lever (23) is pivotably mounted about an axis running parallel to a tangent to the ring (13).
Figure imgaf001

Description

Die Erfindung betrifft eine Röntgendiagnostikanlage mit einem Röntgenbildverstärker, bei der am Gehäuse des Rönt­genbildverstärkers vor dessen Eingangsleuchtschirm koaxi­al zum Röntgenbildverstärker eine Haube allseitig federnd gelagert ist, die auf eine Anzahl von Schaltvorrichtungen einwirkt, die derart angeordnet sind, daß eine Schalter­betätigung sowohl bei in Richtung der Leuchtschirmfläche als auch senkrecht dazu und in jeder Zwischenrichtung auf die Haube einwirkenden Kräften erfolgt, wobei auf dem Röntgenbildverstärkergehäuse ein Ring befestigt ist, der mehrere gegeneinander versetzte Schaltvorrichtungen trägt, deren Betätigungsglieder federnd gegen die Innen­wand der Haube gedrückt werden.The invention relates to an X-ray diagnostic system with an X-ray image intensifier, in which a hood is resiliently mounted on all sides of the housing of the X-ray image intensifier in front of its fluorescent screen, which acts on a number of switching devices which are arranged such that a switch actuation both in the direction of the fluorescent screen surface as well as perpendicular to it and in any intermediate direction acting forces on the hood, a ring is attached to the X-ray image intensifier housing, which carries a plurality of staggered switching devices, the actuators of which are resiliently pressed against the inner wall of the hood.

Eine Röntgendiagnostikanlage dieser Art ist in der DE-OS 33 43 924 beschrieben. Bei dieser Röntgendiagnostikanlage bewirken die Schaltmittel im Falle eines Anstoßens die Abschaltung des Antriebsmotors für die Verstellung des Röntgenbildverstärkers, so daß dadurch Schäden verhindert werden. Jede Schaltvorrichtung weist dabei einen Schalt­hebel auf, der um eine etwa senkrecht und eine radial zum Eingangsleuchtschirm verlaufende Achse schwenkbar mit dem Ring verbunden ist und auf zwei Schalter einwirkt, deren Betätigungsrichtungen mit diesen Achsen zusammenfallen oder parallel dazu liegen. Der Aufbau der Schaltvorrich­tung ist demgemäß kompliziert.An X-ray diagnostic system of this type is described in DE-OS 33 43 924. In the case of this X-ray diagnostic system, the switching means, in the event of an impact, switch off the drive motor for the adjustment of the X-ray image intensifier, so that damage is prevented. Each switching device has a switching lever which is pivotally connected to the ring about an approximately perpendicular and a radial to the entrance fluorescent axis and acts on two switches whose actuation directions coincide with these axes or are parallel to them. The structure of the switching device is accordingly complicated.

Der Erfindung liegt die Aufgabe zugrunde, eine Röntgen­diagnostikanlage der eingangs genannten Art hinsichtlich der Ausbildung der Schaltvorrichtung gegenüber dem Stand der Technik zu vereinfachen.The invention has for its object an X-ray diagnostic system of the type mentioned with regard to simplify the design of the switching device compared to the prior art.

Diese Aufgabe ist erfindungsgemäß dadurch gelöst, daß je­de Schaltvorrichtung mindestens einen um eine tangential zum Ring oder parallel zu einer Tangente verlaufende Ach­se schwenkbaren Hebel aufweist, welcher mit seinem einen Ende einen Schalter betätigt und mit seinem anderen, um einen stumpfen Winkel abgewinkelten Ende an einer Schräge an der Innenfläche der Haube derart anliegt, daß er bei einem Druck auf die Haube betätigt wird. Bei der erfin­dungsgemäßen Röntgendiagnostikanlage ist der Betätigungs­hebel jeder Schaltvorrichtung nur um eine einzige Achse schwenkbar gelagert. Er wird innerhalb der vorkommenden Kraftrichtungen auf die Haube zur Ausschaltung des An­triebsmotors für den Röntgenbildverstärker sicher ver­schwenkt.This object is achieved in that each switching device has at least one pivotable about a tangential to the ring or parallel to a tangent axis lever, which actuates a switch with one end and with its other end at an oblique angle on a slope bears against the inner surface of the hood in such a way that it is actuated when the hood is pressed. In the X-ray diagnostic system according to the invention, the actuating lever of each switching device is only pivoted about a single axis. It is pivoted securely on the hood within the force directions to switch off the drive motor for the X-ray image intensifier.

Die Haube kann durch in ihrer Längsrichtung federnde Drähte, die tangential zum Ring verlaufen und an diesem befestigt sind, zentrisch gehaltert sein. Sie kann dem­gemäß aus ihrer zentrischen Lage beim Anstoßen an einem Hindernis ausgelenkt werden und kehrt in diese Lage auf­grund der federnd angeordneten Drähte zurück. Eine beson­ders einfache Befestigung des Ringes am Gehäuse des Rönt­genbildverstärkers ist möglich, wenn dem Ring ein Spann­band zugeordnet ist, durch das Noppen gegen die Außen­seite des Röntgenbildverstärkergehäuses gedrückt werden können.The hood can be held centrally by wires which are resilient in their longitudinal direction and which run tangentially to the ring and are fastened to the ring. Accordingly, it can be deflected from its central position when hitting an obstacle and returns to this position due to the spring-mounted wires. A particularly simple attachment of the ring to the housing of the X-ray image intensifier is possible if a tensioning band is assigned to the ring, by means of which knobs can be pressed against the outside of the X-ray image intensifier housing.

Die Erfindung ist nachfolgend anhand eines in der Zeich­nung dargestellten Ausführungsbeispieles näher erläutert. Es zeigen:

  • Fig. 1 eine Röntgendiagnostikanlage zur Erläuterung des Erfindungsgedankens,
  • Fig. 2 und 3 zwei Ansichten einer für die Erfindung wesentlichen Einzelheit der Röntgen­diagnostikanlage gemäß Figur 1, und
  • Fig. 4 einen Ausschnitt IV aus der Figur 2.
The invention is explained below with reference to an embodiment shown in the drawing. Show it:
  • Fig. 1 is an X-ray diagnostic system for explanation of the inventive concept,
  • 2 and 3 show two views of a detail of the X-ray diagnostic system according to FIG. 1 which is essential for the invention, and
  • 4 shows a section IV from FIG. 2.

In der Figur 1 ist eine Röntgenröhre 1 dargestellt, deren Strahung aus einer Primärstrahlenblende 2 austritt und einen auf einer Liege 3 liegenden Patienten 4 durch­strahlt. Auf dem Eingangsleuchtschirm 5a eines Röntgen­bildverstärkers 5 werden Bilder erzeugt, die von einer Fersehkamera 6 am Ausgangsleuchtschirm des Röntgenbild­verstärkers 5 aufgenommen und über eine Fernsehzentrale 7 auf einem Monitor 8 wiedergegeben werden. Die Röntgenröh­re 1 wird von einem Röntgengenerator 9 gespeist.1 shows an x-ray tube 1, the radiation of which emerges from a primary radiation diaphragm 2 and shines through a patient 4 lying on a couch 3. Images are generated on the input fluorescent screen 5a of an X-ray image intensifier 5, which images are recorded by a television camera 6 on the output fluorescent screen of the X-ray image intensifier 5 and are displayed on a monitor 8 via a television center 7. The x-ray tube 1 is fed by an x-ray generator 9.

Der Röntgenbildverstärker 5 sitzt in einer Halterung 10, die durch einen Motor 11 relativ zur Patientenliege 3 verstellbar ist. Am Gehäuse des Röntgenbildverstärkers 5 ist vor dessen Eingangsleuchtschirm 5a koaxial zum Rönt­genbildverstärker 5 eine Haube 12 federnd gelagert, die auf eine Anzahl von in Verbindung mit den Figuren 2 bis 4 noch näher erläuterten Schaltvorrichtungen einwirkt, die derart angeordnet sind, daß eine Schalterbetätigung so­wohl bei in Richtung der Leuchtschirmfläche als auch senkrecht dazu auf die Haube 12 einwirkenden Kräften er­folgt. In jedem praktisch vorkommenden Fall eines An­stoßes der Haube 12 an dem Patienten 4 oder der Patien­tenliege 3 wird demgemäß der Motor 11 stillgesetzt.The X-ray image intensifier 5 is seated in a holder 10, which is adjustable relative to the patient bed 3 by a motor 11. On the housing of the X-ray image intensifier 5, a hood 12 is spring-mounted coaxially to the X-ray image intensifier 5, which acts on a number of switching devices explained in more detail in connection with FIGS. 2 to 4, which are arranged such that a switch actuation both in Direction of the fluorescent screen surface and perpendicularly acting on the hood 12 forces. Accordingly, the motor 11 is stopped in every practically occurring case of the hood 12 abutting the patient 4 or the patient bed 3.

Die Figuren 2 bis 4 zeigen, daß die Haube 12 einen auf dem Röntgenbildverstärkergehäuse befestigten Ring 13 um­schließt. Der Ring 13 kann mit dem Röntgenbildverstärker­ gehäuse verschraubt oder auch mit Hilfe eines Spannbandes auf dem Röntgenbildverstärkergehäuse aufgespannt sein, indem Noppen gegen die Außenseite des Röntgenbildverstär­kergehäuses gedrückt werden. Der Ring 13 trägt fünf um jeweils 72° gegeneinander versetzte Schaltvorrichtungen 15 bis 19. Der Aufbau der Schaltvorrichtungen 15 bis 19 ist anhand der Schaltvorrichtung 15 in Figur 4 darge­stellt.Figures 2 to 4 show that the hood 12 encloses a ring 13 attached to the X-ray image intensifier housing. The ring 13 can with the X-ray image intensifier screwed housing or can also be clamped on the x-ray image intensifier housing with the aid of a tensioning band by pressing knobs against the outside of the x-ray image intensifier housing. The ring 13 carries five switching devices 15 to 19, each offset by 72 ° from one another. The construction of the switching devices 15 to 19 is shown with reference to the switching device 15 in FIG.

Die Schaltvorrichtung 15 weist zwei am Ring 13 befestigte Mikroschalter 20, 21 auf, die durch eine gewinkelte Plat­te 22 betätigbar sind. Die Platte 22 wiederum ist durch einen Hebel 23 betätigbar, welcher um eine parallel zu einer Tangente zum Ring 13 liegenden Achse 23a schwenkbar ist. Der Hebel 23 drückt mit seinem einen Ende 24 von oben gegen einen Ansatz 25 der Platte 22, welche ihrer­seits im Ruhezustand die Betätigungsglieder der Schalter 20, 21 eindrückt. Am anderen Ende 26 des Hebels 23 ist eine Rolle 27 gelagert, mit der der Hebel 23 federnd ge­gen die Innenseite der Haube 12 gedrückt wird. Der Rolle 27 ist dabei eine Schräge 28 an der Innenseite der Haube 12 zugeordnet.The switching device 15 has two microswitches 20, 21 attached to the ring 13, which can be actuated by an angled plate 22. The plate 22 in turn can be actuated by a lever 23 which can be pivoted about an axis 23a lying parallel to a tangent to the ring 13. The lever 23 presses with its one end 24 from above against a shoulder 25 of the plate 22, which in turn presses the actuators of the switches 20, 21 in the idle state. At the other end 26 of the lever 23, a roller 27 is mounted, with which the lever 23 is pressed resiliently against the inside of the hood 12. The roller 27 is assigned a slope 28 on the inside of the hood 12.

Wirkt auf die Haube 12 eine Kraft ein, die senkrecht zur Strahleneintrittsfläche verläuft, so bewegt die Schräge 28 den Hebel 23 etwas im Uhrzeigersinn, so daß er über die Platte 22 die Betätigungsglieder der Schalter 20, 21 freigibt, wodurch der Antriebsmotor 11 ausgeschaltet wird.If a force acts on the hood 12 which is perpendicular to the radiation entry surface, the bevel 28 moves the lever 23 somewhat clockwise, so that it releases the actuators of the switches 20, 21 via the plate 22, whereby the drive motor 11 is switched off.

Wirkt eine Kraft auf die Haube 12 schräg zur Strahlenein­gangsfläche, so wird der Hebel 23 über die Rolle 27 eben­falls in der geschilderten Richtung zur Motorunterbre­chung verschwenkt.If a force acts on the hood 12 at an angle to the radiation input surface, the lever 23 is also pivoted via the roller 27 in the direction described to interrupt the engine.

Die Figuren 3 und 4 zeigen, daß bei besonders einfachem Aufbau eine sichere Schalterbetätigung bei Kräften auf die Haube 12 innerhalb eines Bereiches von etwa 180° (Halbkugel) erfolgt.Figures 3 and 4 show that with a particularly simple structure, a safe switch actuation with forces on the hood 12 takes place within a range of about 180 ° (hemisphere).

Aus der Figur 3 geht hervor, daß der Hebel 23 um einen stumpfen Winkel abgewinkelt ist, so daß die geschilderte, sichere Schalterbetätigung erfolgt. Die Schaltvorrichtun­gen 16 bis 19 sind in gleicher Weise wie die Schaltvor­richtung 15 aufgebaut.From Figure 3 it can be seen that the lever 23 is angled at an obtuse angle so that the described, safe switch actuation takes place. The switching devices 16 to 19 are constructed in the same way as the switching device 15.

Aus der Figur 4 geht noch hervor, daß die Haube 12 durch in ihrer Längsrichtung federnd gelagerte Drähte, von de­nen einer dargestellt und mit 29 bezeichnet ist, zen­trisch gehaltert ist. Diese Drähte 29 usw. verlaufen tan­gential zum Ring 13 und sind an diesem befestigt.It can also be seen from FIG. 4 that the hood 12 is held centrally by wires which are resiliently mounted in their longitudinal direction, one of which is shown and designated 29. These wires 29 etc. run tangentially to the ring 13 and are attached to it.

Claims (3)

1. Röntgendiagnostikanlage mit einem Röntgenbildverstär­ker (5), bei der am Gehäuse des Röntgenbildverstärkers (5) vor dessen Eingangsleuchtschirm (5a) koaxial zum Röntgenbildverstärker (5) eine Haube (12) allseitig fe­dernd gelagert ist, die auf eine Anzahl von Schaltvor­richtungen (15 bis 19) einwirkt, die derart ausgebildet und angeordnet sind, daß eine Schalterbetätigung sowohl bei in Richtung der Leuchtschirmfläche als auch senkrecht dazu und in jeder Zwischenrichtung auf die Haube (12) einwirkenden Kräften erfolgt, wobei auf dem Röntgenbild­verstärkergehäuse ein Ring (13) befestigt ist, der mehre­re gegeneinander versetzte Schaltvorrichtungen (15 bis 19) trägt, deren Betätigungsglieder (23) federnd gegen die Innenwand der Haube (12) gedrückt werden, da­durch gekennzeichnet, daß jede Schaltvorrichtung (15 bis 19) einen um eine tangential zum Ring (13) oder parallel zu einer Tangente verlaufen­de Achse (13a) schwenkbaren Hebel (23) aufweist, welcher mit seinem einen Ende (24) mindestens einen Schalter (20, 21) betätigt und mit seinem anderen, um einen stumpfen Winkel abgewinkelten Ende (26) an einer Schräge (28) an der Innenfläche der Haube (12) derart anliegt, daß er bei einem Druck auf die Haube (12) betätigt wird.1. X-ray diagnostic system with an X-ray image intensifier (5), in which on the housing of the X-ray image intensifier (5) in front of its input fluorescent screen (5a) coaxially to the X-ray image intensifier (5), a hood (12) is resiliently mounted on all sides, which is adapted to a number of switching devices (15 to 19), which are designed and arranged in such a way that a switch is actuated both in the direction of the fluorescent screen surface and perpendicularly thereto and in any intermediate direction on the hood (12), a ring (13) being attached to the X-ray image intensifier housing, which carries a plurality of mutually offset switching devices (15 to 19), the actuating members (23) of which are pressed resiliently against the inner wall of the hood (12), characterized in that each switching device (15 to 19) is one tangential to the ring (13) or Has parallel to a tangent axis (13a) pivotable lever (23), which has at least one end (24) actuates a switch (20, 21) and with its other end (26), which is angled at an obtuse angle, bears against a slope (28) on the inner surface of the hood (12) such that it presses on the hood (12) is operated. 2. Röntgendiagnostikanlage nach Anspruch 1, da­durch gekennzeichnet, daß dem Ring (13) ein Spannband zur Befestigung am Bildverstärkerge­häuse zugeordnet ist.2. X-ray diagnostic system according to claim 1, characterized in that the ring (13) is assigned a strap for attachment to the image intensifier housing. 3. Röntgendiagnostikanlage nach Anspruch 1, da­durch gekennzeichnet, daß die Haube (12) durch in ihrer Längsrichtung federnde Drähte (29), die tangential zum Ring (13) verlaufen und an diesen be­festigt sind, zentrisch gehaltert ist.3. X-ray diagnostic system according to claim 1, characterized in that the hood (12) by means of springs in its longitudinal direction (29) which are tangential to the ring (13) and are attached to this, is held centrally.
EP86115164A 1985-11-15 1986-10-31 X-ray diagnostic apparatus having an x-ray image intensifier Expired - Lifetime EP0226014B1 (en)

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Application Number Priority Date Filing Date Title
DE8532381U 1985-11-15
DE8532381U DE8532381U1 (en) 1985-11-15 1985-11-15 X-ray image intensifier for an X-ray diagnostic system

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EP0226014A1 true EP0226014A1 (en) 1987-06-24
EP0226014B1 EP0226014B1 (en) 1990-02-28

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US4733408A (en) 1988-03-22
DE8532381U1 (en) 1986-02-13
EP0226014B1 (en) 1990-02-28
DE3669254D1 (en) 1990-04-05

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