[go: up one dir, main page]

DE29515147U1 - X-ray diagnostic device with a filter device - Google Patents

X-ray diagnostic device with a filter device

Info

Publication number
DE29515147U1
DE29515147U1 DE29515147U DE29515147U DE29515147U1 DE 29515147 U1 DE29515147 U1 DE 29515147U1 DE 29515147 U DE29515147 U DE 29515147U DE 29515147 U DE29515147 U DE 29515147U DE 29515147 U1 DE29515147 U1 DE 29515147U1
Authority
DE
Germany
Prior art keywords
filter
ray diagnostic
load
ray tube
diagnostic device
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.)
Expired - Lifetime
Application number
DE29515147U
Other languages
German (de)
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to DE29515147U priority Critical patent/DE29515147U1/en
Publication of DE29515147U1 publication Critical patent/DE29515147U1/en
Priority to DE19614842A priority patent/DE19614842C2/en
Priority to JP1996009554U priority patent/JP3036046U/en
Priority to US08/716,985 priority patent/US5680435A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H05G1/30—Controlling
    • H05G1/36—Temperature of anode; Brightness of image power
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • X-Ray Techniques (AREA)

Description

95 P 3 7 1495 P3 7 14

BeschreibungDescription

Röntgendiagnostikgerät mit einer FiltereinrichtungX-ray diagnostic device with a filter device

Es sind Filtereinrichtungen mit Filtern unterschiedlicher Strahlenabsorption bekannt, die wahlweise in den Strahlengang eines von einem Röntgenstrahier ausgesendeten Strahlenbündels bringbar sind.Filter devices with filters of different radiation absorption are known, which can be optionally brought into the beam path of a beam emitted by an X-ray emitter.

Aus der DE 33 39 775 Al ist ein Röntgendiagnostikgerät mit Strahlenfiltern bekannt, wobei Mittel zur Bildung eines elektrischen Dichtesignales vorhanden sind, das von der Dichte eines Untersuchungsobjektes abhängt. Ferner sind Stellmittel zum Einbringen der Filter vorgesehen, die einen von einer Steuerschaltung ansteuerbaren Elektromotorumfassen. Der Steuerschaltung wird das Dichtesignal zugeführt und steuert den Elektromotor dem jeweiligen Dichtesignal entsprechend zur Auswahl des zugehörigen Filters an.An X-ray diagnostic device with radiation filters is known from DE 33 39 775 A1, wherein means are provided for generating an electrical density signal that depends on the density of an object under examination. Furthermore, actuating means are provided for introducing the filters, which comprise an electric motor that can be controlled by a control circuit. The density signal is fed to the control circuit and controls the electric motor in accordance with the respective density signal in order to select the associated filter.

Die Wahl des Filters erfolgt unabhängig von der Belastung, insbesondere der thermischen Belastung der Röntgenröhre. Um eine Beschädigung der Röntgenröhre bei einer Dauerbelastung während beispielsweise einer Durchleuchtung zu vermeiden muß die Belastung gegebenenfalls reduziert werden. Hierbei ändert sich auch die Strahlenqualität.The choice of filter is made independently of the load, in particular the thermal load of the X-ray tube. In order to avoid damage to the X-ray tube during continuous exposure, for example during fluoroscopy, the load may need to be reduced. This also changes the quality of the radiation.

Gemäß der Erfindung ist daher vorgesehen, in Abhängigkeit von der Belastung, insbesondere der Dauerbelastung der Röntgenröhre, die Filter zu wechseln. Die Wahl des Filters erfolgt hierbei in Hinsicht auf Minimierung der Hautbelastung bei möglichst geringer oder nur geringer Veränderung der Bildqualität. Hat der Anwender beispielsweise ein Spannungsplateau von 63 KV und einen Filter von 0,2 mm Dicke gewählt, so wird dieser so lange benutzt, bis die Grenzbelastbarkeit der Röntgenröhre erreicht ist. Ist die Grenzbelastbarkeit der Röntgenröhre erreicht, so wird automatisch das nächste Filter mit geringerer Dicke in den Strahlengang eingebracht. Der sich reduzierende Kontrast wird durch eine Anhebung der DosisAccording to the invention, it is therefore intended to change the filters depending on the load, in particular the continuous load of the X-ray tube. The choice of filter is made with a view to minimizing the skin load with as little or as little change in image quality as possible. For example, if the user has selected a voltage plateau of 63 KV and a filter with a thickness of 0.2 mm, this is used until the limit load of the X-ray tube is reached. If the limit load of the X-ray tube is reached, the next filter with a smaller thickness is automatically inserted into the beam path. The reducing contrast is compensated for by increasing the dose.

kompensiert. Der Benutzer kann bestimmen, welcher Anfangsfilter benutzt werden soll. Es kann eine Anzeigevorrichtung vorgesehen werden, auf der eine Anzeige des aktuell benutzten Filters erfolgt.compensated. The user can determine which initial filter should be used. A display device can be provided to show the filter currently in use.

Claims (1)

35 P 3 J f 435 P 3 J f 4 Schut zanspruchProtection claim Röntgendiagnostikgerät mit einer Filtereinrichtung aufweisend wenigstens zwei unterschiedliche Filter, die in den Strahlengang eines Röntgenstrahlers einbringbar sind, wobei die Filter in Abhängigkeit von der Belastung der Röntgenröhre automatisch in den Strahlengang eingebracht werden.X-ray diagnostic device with a filter device having at least two different filters that can be introduced into the beam path of an X-ray tube, wherein the filters are automatically introduced into the beam path depending on the load on the X-ray tube.
DE29515147U 1995-09-22 1995-09-22 X-ray diagnostic device with a filter device Expired - Lifetime DE29515147U1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE29515147U DE29515147U1 (en) 1995-09-22 1995-09-22 X-ray diagnostic device with a filter device
DE19614842A DE19614842C2 (en) 1995-09-22 1996-04-15 X-ray diagnostic device with a filter device
JP1996009554U JP3036046U (en) 1995-09-22 1996-09-20 X-ray diagnostic apparatus having filter device
US08/716,985 US5680435A (en) 1995-09-22 1996-09-20 X-ray diagnostic apparatus with a filter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29515147U DE29515147U1 (en) 1995-09-22 1995-09-22 X-ray diagnostic device with a filter device

Publications (1)

Publication Number Publication Date
DE29515147U1 true DE29515147U1 (en) 1996-02-29

Family

ID=8013294

Family Applications (2)

Application Number Title Priority Date Filing Date
DE29515147U Expired - Lifetime DE29515147U1 (en) 1995-09-22 1995-09-22 X-ray diagnostic device with a filter device
DE19614842A Expired - Fee Related DE19614842C2 (en) 1995-09-22 1996-04-15 X-ray diagnostic device with a filter device

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE19614842A Expired - Fee Related DE19614842C2 (en) 1995-09-22 1996-04-15 X-ray diagnostic device with a filter device

Country Status (2)

Country Link
JP (1) JP3036046U (en)
DE (2) DE29515147U1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3011912A1 (en) * 1980-03-27 1981-10-01 Siemens AG, 1000 Berlin und 8000 München X-RAY DIAGNOSTIC SYSTEM WITH A CONTROL CIRCUIT FOR DOSING PERFORMANCE
DE3339775A1 (en) * 1983-11-03 1985-05-15 Siemens AG, 1000 Berlin und 8000 München X-RAY DIAGNOSTIC DEVICE WITH RADIATION FILTERS
DE3704795A1 (en) * 1987-02-16 1988-08-25 Philips Patentverwaltung X-ray examination arrangement having an image recorder (camera)
EP0629105B1 (en) * 1993-05-21 1999-08-04 Koninklijke Philips Electronics N.V. X-ray examination apparatus and visible image detection system for an X-ray examination apparatus

Also Published As

Publication number Publication date
DE19614842A1 (en) 1997-03-27
DE19614842C2 (en) 2003-05-28
JP3036046U (en) 1997-04-08

Similar Documents

Publication Publication Date Title
DE69616030T2 (en) X-RAY EXAMINATION DEVICE INCLUDING AN IMAGE MATRIX WITH CORRECTION UNIT
DE2820908C2 (en)
DE3586996T2 (en) METHOD AND DEVICE FOR X-RAY EXAMINATION.
DE3782088T2 (en) METHOD FOR PRODUCING FLUOROSCOPIC AND RADIOGRAPHIC X-RAY IMAGES AND A PORTABLE DIAGNOSTIC APPARATUS WORKING THIS METHOD.
DE10354899B4 (en) X-ray device and method for producing an X-ray image data set
DE4017904A1 (en) DOUBLE DISC SCANNER
DE2651011A1 (en) DEVICE FOR ROENTGEN DIAGNOSTICS
DE102009039345A1 (en) Therapeutic irradiation device for irradiating body of patient during tumor therapy, has image forming electronic for reproducing image of organ structures inside volume of body and shapes and intensity distributions of radiation beams
DE3436444A1 (en) Method and device for the reproducible, three-dimensional positioning of a patient, especially for irradiation
EP0280908A1 (en) Surface coil for a nuclear spin resonance apparatus
EP0400168B1 (en) Medical installation to position a therapeutical apparatus
DE4318686A1 (en) Method of operating a medical apparatus
DE102010042683A1 (en) Device and method for generating X-radiation and computer program and data carrier
EP0106402B1 (en) Method of producing tomographic images
DE102005049228B4 (en) Detector with an array of photodiodes
DE102017214196A1 (en) X-ray system and method for its operation
DE2741732A1 (en) LAYER FOR THE PRODUCTION OF TRANSVERSAL LAYER IMAGES
EP0021355A1 (en) X-ray diagnostic apparatus for series of angiographic X-ray takes
DE3342076C2 (en) Method and device for converting video camera images into electrical signals
DE2650963A1 (en) DEVICE FOR ROENTGEN DIAGNOSTICS
DE19635592A1 (en) Medical X-ray apparatus operating method
DE3330116A1 (en) X-ray diagnostic generator
DE29515147U1 (en) X-ray diagnostic device with a filter device
DE3923024A1 (en) ELECTROSURGERY DEVICE WITH OPERATING, DISPLAY AND SAFETY DEVICE
DE102021205294B3 (en) Computed tomography device and method for operating a computed tomography device

Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19960411

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 19990122

R151 Utility model maintained after payment of second maintenance fee after six years

Effective date: 20020219

R152 Utility model maintained after payment of third maintenance fee after eight years

Effective date: 20031204

R071 Expiry of right