EP0426897B1 - Röngenstrahler - Google Patents

Röngenstrahler Download PDF

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Publication number
EP0426897B1
EP0426897B1 EP89120807A EP89120807A EP0426897B1 EP 0426897 B1 EP0426897 B1 EP 0426897B1 EP 89120807 A EP89120807 A EP 89120807A EP 89120807 A EP89120807 A EP 89120807A EP 0426897 B1 EP0426897 B1 EP 0426897B1
Authority
EP
European Patent Office
Prior art keywords
tube
ray
screws
assembly head
ray tube
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
EP89120807A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0426897A1 (de
Inventor
Fred Ing. Meinel (Grad)
Dorothea Wilke
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
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to EP89120807A priority Critical patent/EP0426897B1/de
Priority to DE89120807T priority patent/DE58905921D1/de
Priority to US07/606,919 priority patent/US5067146A/en
Priority to JP1990116152U priority patent/JP2515890Y2/ja
Publication of EP0426897A1 publication Critical patent/EP0426897A1/de
Application granted granted Critical
Publication of EP0426897B1 publication Critical patent/EP0426897B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H05G1/02—Constructional details
    • H05G1/04—Mounting the X-ray tube within a closed housing
    • H05G1/06—X-ray tube and at least part of the power supply apparatus being mounted within the same housing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/02—Constructional details
    • H05G1/025—Means for cooling the X-ray tube or the generator

Definitions

  • the invention relates to an x-ray emitter with a housing and an x-ray tube which is arranged in a trough filled with coolant and is fastened to a mounting head.
  • x-ray emitters are used in particular as single-boiler x-ray diagnostic generators for receiving all the components required for x-ray generation.
  • Such an X-ray source is described in DE-U 81 32 991.
  • An X-ray tube is arranged on the base plate, the mounting head of a single oil-filled housing, in the vicinity of an exit window incorporated in the mounting head.
  • Two high-voltage transformers are attached to the mounting head symmetrically next to the X-ray tube.
  • At one end of the x-ray tube one or two heating transformers for the fokens of the x-ray tube are arranged.
  • Rectifiers and high-voltage capacitors are located on the side of the X-ray tube facing away from the radiator, symmetrical to the radiation exit window. These are welded together for the oil-tight connection of the mounting head to the tub.
  • the problem with such an X-ray emitter arises that the X-ray tube cannot be aligned with respect to the radiation exit window and the beam direction in the installed state under operating conditions.
  • US-A-2 592 496 describes an X-ray emitter that is adjustably attached to a tripod.
  • the X-ray tube is rotatably mounted in ball bearings within the radiator housing.
  • the outer support By turning the outer support, the inner support is now taken along and the tube is rotated about its longitudinal axis.
  • adjustment in the installed state under operating conditions of the X-ray tube is also not possible here.
  • the invention is based on the object of creating an X-ray emitter of the type mentioned at the beginning, in which the alignment of the X-ray tube and thus the X-ray beam can also be adjusted when the housing is assembled.
  • the holding means bring about an adjustment of the tube holder holding the X-ray tube from the outside without opening the oil-filled housing, so that an adjustment of the X-ray tube can be carried out in a simple manner.
  • the adjustable holding means consist of screws which are rotatably fastened to the mounting head and which engage in threads attached to the tube carrier. Due to the thread, the height of the tube support and thus the X-ray tube can be adjusted at several points by means of the rotatably fastened screws, which are supported in a fixed position on the mounting head, so that the X-ray beam can be adjusted three-dimensionally.
  • the screws have a threaded part that fits into the thread attached to the tube support engages if the screws have a thickening that engages in a bore in the mounting head and is supported on the mounting head, and if the screws on the other side are also provided with a thread onto which a locking nut is screwed, which is located on the mounting head supports.
  • the housing can be oil-tight if the bushing through the mounting head for the holding means is provided with a seal.
  • FIG. 1 shows an X-ray emitter with an oil-filled housing, which consists of a tub 1 and a mounting head 2 exists. A hood 3 is placed over the mounting head 2.
  • An X-ray tube 4, a circuit board 5 with rectifiers and high-voltage capacitors, two high-voltage transformers 6 and 7 and a heating transformer 8 are arranged in the oil-filled housing of the X-ray source.
  • a radiation exit window 9 is arranged in the middle of the assembly head 2.
  • a tube support 10 for the X-ray tube 4 is attached to the mounting head 2 by holding means 26 to 28, not shown in this figure, and is made in two parts.
  • the X-ray tube 4 is fastened to the upper part 11 of the tube carrier 10 with its foot, to which a heat sink 13 is attached asymmetrically.
  • the upper part 11 of the tube support 10 is provided with an opening 14.
  • the tube support 10 is bent upward, so that the opening 14 projects into a heat exchanger 15 which is designed as a bump belonging to the mounting head 2.
  • the heat exchanger 15 is provided with cooling fins 16.
  • the lower part 12 of the tube support 10 encompasses only the actual X-ray tube 4 and not the heat sink 13, so that when the X-ray tube 4 is in operation, the heat sink 13 heats up and, due to gravity, causes the oil as a coolant to flow upwards, whereby in the Figure 1 shown position of the X-ray tube passes directly into the heat exchanger 15, where it can be cooled. The cooled oil then falls down due to gravity and can then rise again.
  • This coolant circuit due to gravity is further supported by the partition wall 17, which forms part of a component carrier 19.
  • the lower part 12 of the tube carrier 10 likewise has an opening 20. Furthermore, a gap is left between the two parts 11 and 12, so that the coolant can also pass through this. Also in this area the component carrier 19 is provided with a vertically arranged partition wall 18 which also supports a heat cycle.
  • the tube carrier 10 has a rectangular profile, so that as much oil as possible can pass through this tube carrier 10 and thus cool the X-ray tube 4. Due to the electric field, a second flow occurs in the longitudinal direction of the X-ray tube 4 and the tube support 10, so that the X-ray tube 4 is cooled not only via the heat sink 13 but also via the tube piston. This also results in circulation and an exchange of the coolant, so that the coolant heated at the head of the X-ray tube 4 can also reach the heat exchanger 15.
  • the printed circuit board 5 On the component carrier 19, on the side of the tube carrier 10 facing away from the mounting head 2, the printed circuit board 5 is attached, on which high-voltage capacitors 34 and rectifiers, not shown, are arranged.
  • the high-voltage transformers 6 and 7 and the heating transformer 8 are then arranged below the printed circuit board 5. So that the high-voltage transformers 6 and 7 work as loss-free as possible and generate only little heat, their cores 35 are made of amorphous metal, such as Vitrovac.
  • the heat exchanger 15 is provided with an opening 21 which is covered by a circuit board 22.
  • the voltage supply is achieved by contact pins 23 which are passed through the circuit board 22.
  • the circuit board 22, like the circuit board 5, can be created using the so-called SIL technology.
  • SIL technology a molded part made of plastic is created, which is then coated with a layer of conductive material that forms the solder contacts and tracks. This special structure ensures that the contact bushing is oil-tight.
  • the mounting head 2 of the X-ray emitter has the heat exchanger on it 15 opposite side also on a hump 24, which serves to receive a pressure compensation membrane.
  • the tub 1 and the mounting head 2 of the X-ray emitter are covered by the hood 3, which overlaps the tub 1 laterally.
  • To hold the hood 2 is provided on one narrow side with a nose 25 which engages in a groove.
  • This groove can either be provided in the tub 1 or, as shown in FIG. 1, be formed between the tub 1 and the mounting head 2.
  • the hood 3 reaches over the heat exchanger 15 and is connected to it there by means of screws.
  • trough 1 and hood 3 have cutouts and contact surfaces into which a support arm for the X-ray emitter, for example a C-arm, can engage, which connects the area of the heat exchanger 15 to the X-ray emitter. A further heat dissipation of the heat exchanger 15 is achieved via the support arm.
  • a support arm for the X-ray emitter for example a C-arm
  • FIG. 2 shows a section along the line II-II through the X-ray emitter. It can be seen that the tube support 10 is connected to the mounting head 2 via adjustable holding means 26 to 28.
  • the holding means consist of screws 26 which engage with their threaded part in the thread attached to the tube support 10.
  • the screws 26 are supported on the mounting head 2 by means of projections.
  • the other side of the screw 26 is also provided with a thread on which a lock nut 27 is screwed. Sealing rings 28 cause the bushing for the screws 26 to be kept oil-tight.
  • the tube support 10 and thus the X-ray tube 4 can thus be adjusted in height, tilted on the anode or cathode side and rotated about their axis, since the height of the screws 26 is firmly connected to the mounting head 2.
  • the tube carrier 10 has an essentially rectangular cross section. It can be made of plastic, for example. To reduce the x-ray radiation, it is provided with lead sheets 29 which engage, for example, in slots provided on the tube support 10 and are held by the latter.
  • a sealant for example an O-ring 32, is introduced, which is held by the pressure of the walls in the radial direction and the contact pressure of the mounting head 2 in the vertical direction and causes a seal.
  • the mounting head 2 is screwed in the axial direction so that the contact pressure of the O-ring 32 is always the same for all X-ray emitters.
  • a rubber sealing ring can be used as the O-sealing ring 32, which is preformed in such a way that it is adapted to the rectangular shape of the X-ray emitter, so that there is little or no stretching in its edge regions and therefore almost no constriction.
  • the height of the x-ray tube 4 can be adjusted once by the tube support 10 and, for example, four screws 26 engaging the tube support 10, so that the width of the x-ray beam can be adjusted. Furthermore, the x-ray tube 4 can be adjusted in the direction of its longitudinal axis or transversely thereto by adjusting two screws 26 each. The fact that the tube support 10 is made of plastic can be twisted by adjusting only one screw 26, so that diagonal adjustments of the X-ray tube 4 are also possible.
  • This inventive design of the X-ray emitter allows the X-ray tube 4 to be adjusted and adjusted even in the assembled state, so that the assembly effort is simplified.

Landscapes

  • X-Ray Techniques (AREA)
EP89120807A 1989-11-09 1989-11-09 Röngenstrahler Expired - Lifetime EP0426897B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP89120807A EP0426897B1 (de) 1989-11-09 1989-11-09 Röngenstrahler
DE89120807T DE58905921D1 (de) 1989-11-09 1989-11-09 Röngenstrahler.
US07/606,919 US5067146A (en) 1989-11-09 1990-10-31 X-ray radiator
JP1990116152U JP2515890Y2 (ja) 1989-11-09 1990-11-05 Ｘ線源

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP89120807A EP0426897B1 (de) 1989-11-09 1989-11-09 Röngenstrahler

Publications (2)

Publication Number Publication Date
EP0426897A1 EP0426897A1 (de) 1991-05-15
EP0426897B1 true EP0426897B1 (de) 1993-10-13

Family

ID=8202113

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120807A Expired - Lifetime EP0426897B1 (de) 1989-11-09 1989-11-09 Röngenstrahler

Country Status (4)

Country Link
US (1) US5067146A (enrdf_load_stackoverflow)
EP (1) EP0426897B1 (enrdf_load_stackoverflow)
JP (1) JP2515890Y2 (enrdf_load_stackoverflow)
DE (1) DE58905921D1 (enrdf_load_stackoverflow)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19618122C2 (de) * 1996-05-06 2003-04-10 Siemens Ag Röntgenstrahler
DE19824008C2 (de) * 1998-05-29 2000-04-13 Juergen Ziehm Röntgenstrahler
FR2809277B1 (fr) * 2000-05-19 2002-08-23 Ge Med Sys Global Tech Co Llc Dispositif d'emission de rayons x et procede de montage
JP3892712B2 (ja) * 2001-11-27 2007-03-14 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Ｘ線発生装置
US7382856B2 (en) * 2001-12-04 2008-06-03 X-Ray Optical Systems, Inc. X-ray source assembly having enhanced output stability, and fluid stream analysis applications thereof
CN100336422C (zh) * 2001-12-04 2007-09-05 X射线光学系统公司 输出稳定性增强的x射线源组件及优化x射线传输的方法
JP2007501503A (ja) * 2003-08-04 2007-01-25 エックス−レイ オプティカル システムズ インコーポレーテッド 管電力調節および遠隔較正を使用して出力安定性が向上したｘ線源アセンブリ
JP4163224B2 (ja) * 2006-07-03 2008-10-08 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー 体積変化吸収器、ｘ線発生器およびｘ線撮影装置
JP4431186B1 (ja) * 2008-10-20 2010-03-10 啓史郎 上中 疑似餌
JP6214899B2 (ja) * 2012-03-30 2017-10-18 東芝電子管デバイス株式会社 回転陽極型ｘ線管ユニット及び回転陽極型ｘ線管装置
WO2014097084A1 (en) * 2012-12-19 2014-06-26 Koninklijke Philips N.V. X-ray tube adjustment

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1941270A (en) * 1928-05-11 1933-12-26 Oscar H Pieper X-ray apparatus
US2036096A (en) * 1928-06-18 1936-03-31 Oscar H Pieper X-ray apparatus
US2194369A (en) * 1939-03-01 1940-03-19 Westinghouse X Ray Co Inc Shockproof x-ray unit
NL57780C (nl) * 1939-10-06 1946-07-15 Philips Nv Roentgentoestel, waarbij de roentgenbuis met ten minste een deel van de voedingsapparaten is ondergebracht in een met een isoleerende vloeistof gevuld metalen huis
US2592496A (en) * 1950-07-20 1952-04-08 Vigh John X-ray tube head
DE8132991U1 (de) * 1981-11-11 1983-04-28 Siemens AG, 1000 Berlin und 8000 München Einkessel-roentgendiagnostikgenerator
JPS60134311U (ja) * 1984-02-15 1985-09-06 富士通株式会社 方向調整台の俯仰角調節機構
JPS61198599A (ja) * 1985-02-27 1986-09-02 Hitachi Medical Corp 回転陽極ｘ線管装置
JPS6291397U (enrdf_load_stackoverflow) * 1985-11-27 1987-06-11
DE8615918U1 (de) * 1986-06-13 1987-10-15 Siemens AG, 1000 Berlin und 8000 München Flüssigkeitsgekühlter Röntgenstrahler mit einer Umlaufkühleinrichtung

Also Published As

Publication number Publication date
US5067146A (en) 1991-11-19
DE58905921D1 (de) 1993-11-18
EP0426897A1 (de) 1991-05-15
JPH0377400U (enrdf_load_stackoverflow) 1991-08-02
JP2515890Y2 (ja) 1996-10-30

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