JPH03165745A - X-ray tomography device - Google Patents

X-ray tomography device

Info

Publication number
JPH03165745A
JPH03165745A JP1304197A JP30419789A JPH03165745A JP H03165745 A JPH03165745 A JP H03165745A JP 1304197 A JP1304197 A JP 1304197A JP 30419789 A JP30419789 A JP 30419789A JP H03165745 A JPH03165745 A JP H03165745A
Authority
JP
Japan
Prior art keywords
mask
grid
top plate
image
photographing
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
JP1304197A
Other languages
Japanese (ja)
Other versions
JPH0585175B2 (en
Inventor
Osamu Gohara
郷原　修
Yoshizo Takada
高田　義三
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.)
Shimadzu Corp
Original Assignee
Shimadzu 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 Shimadzu Corp filed Critical Shimadzu Corp
Priority to JP1304197A priority Critical patent/JPH03165745A/en
Publication of JPH03165745A publication Critical patent/JPH03165745A/en
Publication of JPH0585175B2 publication Critical patent/JPH0585175B2/ja
Granted legal-status Critical Current

Links

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
    • A61B6/54—Control of apparatus or devices for radiation diagnosis
    • A61B6/548—Remote control of the apparatus or devices

Landscapes

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

Abstract

PURPOSE:To prevent the deterioration of the image quality due to the expansion of a radioscopic image by providing a connecting/moving mechanism connecting a mask grid drive section and a photographing mechanism and moving the photographing mechanism with respect to a mask grid. CONSTITUTION:A cassette-less photographing device 9 and an image intensifier (I.I.) 10 are integrally mounted on the rectangular frame 1a of a device main body 1 via a moving frame 8, a mask grid 7a is located immediately above them, and a top plate 2 is located immediately above it. When a sway bar 5 is swayed in the vertical plane, a mask grid drive section 7 moves the moving frame 8 to the right and left. The photographing device 9 and the I.I. 10 are integrally moved to the right and left. The I.I. 10 and the cassette-less photographing device 9 are integrally located on the right and left, end their sizes in the longitudinal direction and the height direction of the top plate 2 are shortened. The film face and the I.I. fluorescence incidence face can be matched in height, thus the cutting face can be adjusted by remote control without correction, and the deterioration of the image quality due to the expansion of an image in radioscopy is prevented.

Description

【発明の詳細な説明】 Ａ、産業上の利用分野 本発明はＸ線断層撮影装置に関する。[Detailed description of the invention] A. Industrial application field The present invention relates to an X-ray tomography apparatus.

Ｂ、従来の技術 Ｘａ断層撮影装置において、カセツテレス撮影装置に１
．１．（イメージ・インテンシフアイア）を加えて搭載
することは極めて有益である０例えば透視撮影台に使わ
れているＩ　、Ｉ　、付き速写撮影装置を用いる場合、
フィルムを天板長手方向に沿って撮影位置である１、１
．直上に送り・たり、分割撮影のために移動させたりす
る機ｉ（以下サブドライブ機構と称す）を装置に内蔵し
ている。B. In the conventional Xa tomography system, the cassetteless imaging system
．． 1. It is extremely useful to additionally install an image intensifier (Image intensifier).
Place the film along the longitudinal direction of the top plate at the shooting position 1, 1
．． The device has a built-in device (hereinafter referred to as a sub-drive mechanism) that feeds it directly above or moves it for split shooting.

Ｃ０発明が解決しようとする課題 従って、フィルムを撮影位置に運ぶユニットであるキャ
リッジが長い距離を移動するため、装置本体のコンパク
ト化が難しい、また１、１．直上にキャリッジがくるた
め、フィルム面と１．Ｉ。C0 Problems to be Solved by the Invention Therefore, since the carriage, which is the unit that transports the film to the photographing position, moves over a long distance, it is difficult to make the main body of the apparatus compact; Because the carriage comes directly above, the film surface and 1. I.

蛍光入射面の高さを一致させることができない。It is not possible to match the height of the fluorescence incidence surface.

それゆえに、遠隔操作による裁断面決定に際し、別に何
等かの補正が必要である。さらに透視像が拡大像となる
ため画質は低下してしまうことになる。Therefore, some kind of correction is required when determining the cutting surface by remote control. Furthermore, since the transparent image becomes an enlarged image, the image quality will deteriorate.

Ｄ　課題を解決するための手段 上記課題を達成するため、本発明の構成は次のとおりと
する。即ち、装置本体室枠に設けられた水平軸線を持つ
揺動心軸と、該揺動心軸に揺動可能に支持された揺動棒
と、該揺動棒の一端に配設されたＸ線管と、前記揺動棒
の他端に棒長さ方向に摺動可能、かつ、一平面内で移動
可能に配設され、さらに天板を挟んで前記Ｘ線管と対向
するマスク・グリッドを有するマスク・グリッド駆動部
と、前記マスク・グリッドの下方に位置し、前記天板の
長手方向に並設されたカセツテレス撮影装置およびイメ
ージ・インテンシフアイアを有する撮像機構と、前記撮
像機槽を前記天板の長手方向に一体として移動可能に支
承する支持機構と、前記マスク・グリッド駆動部と前記
撮像機槽とを連結すると共に、前記マスク・グリッドに
対し前記撮像機槽を移動させる連結移動機構とを備えた
ことである。D. Means for Solving the Problems In order to achieve the above problems, the configuration of the present invention is as follows. That is, a swinging shaft having a horizontal axis provided in the chamber frame of the main body of the apparatus, a swinging rod supported swingably on the swinging shaft, and an X-ray tube disposed at one end of the swinging rod. and a mask grid disposed at the other end of the swinging rod so as to be slidable in the lengthwise direction of the rod and movable within one plane, and further facing the X-ray tube with a top plate in between. a mask/grid drive section, an imaging mechanism having a cassette-less imaging device and an image intensifier located below the mask grid and arranged in parallel in the longitudinal direction of the top plate; a support mechanism that integrally supports the plate so as to be movable in the longitudinal direction of the plate; and a coupling movement mechanism that connects the mask/grid drive unit and the imaging device tank and moves the imaging device tank with respect to the mask/grid. This means that we have the following.

Ｅ３作用 揺動棒が鉛直面内で揺動すれば、マスク・グリッド駆動
部が左右に移動する。同時に撮影装置と１．１．も一体
で左右に移動する。連結移動機構を作動させると、マス
ク・グリッドに対し撮影装置、１．１．が移動して、マ
スク・グリッドの直下に各々位置する。When the E3 action swing rod swings in the vertical plane, the mask/grid drive section moves left and right. At the same time, the photographing device and 1.1. also move left and right as one. When the connecting movement mechanism is activated, the imaging device, 1.1. are moved so that they are located directly below the mask grid.

Ｆ、実施例 以下に本発明の実施態様を図面に示す一実施例にもとづ
き説明する。F. Example Hereinafter, embodiments of the present invention will be explained based on an example shown in the drawings.

第１．２図において、本装置の大要は、装置本体ｌの矩
形白枠１ａに移動枠８を介してカセツテレス撮影装置９
．１．１．１０が一体に載置され、その直上にマスク・
グリッド７ａ、その直上に天板２が位置する。装置本体
室枠１ｂに水平軸線を持つ揺動心軸４がその支持部３を
介して昇降可能に設けられ、該揺動心軸４に揺動棒５が
鉛直面内で揺動可能なように支持される。該揺動棒５の
上端にコメリータを有するＸ線管６が、下端にマスク・
グリッド駆動部７が装架されている。マスクグリッド７
ａは上アーム７ｂに固定されている。In Fig. 1.2, the gist of this device is that a cassette telegraphing device 9 is connected to a rectangular white frame 1a of the device main body L via a moving frame 8.
．． 1.1.10 are placed together and a mask is placed directly above it.
The top plate 2 is located directly above the grid 7a. A swinging shaft 4 having a horizontal axis is provided on the chamber frame 1b of the main body of the apparatus so as to be movable up and down via its support portion 3, and a swinging rod 5 is supported on the swinging shaft 4 so as to be swingable in a vertical plane. be done. The X-ray tube 6 has a commeritor at the upper end of the swinging rod 5, and a mask and a mask at the lower end.
A grid drive section 7 is mounted. mask grid 7
a is fixed to the upper arm 7b.

また、このマスク・グリッド駆動部７は揺動棒５に対し
その長さ方向に摺動自在となっており、常に前記移動枠
８上の第３、第４レール８ｅ、８ｆに、下アーム７ｃの
グリッドローラ１２を介して載っている。Further, this mask/grid driving section 7 is slidable in the longitudinal direction with respect to the swing rod 5, and the lower arm 7c is always attached to the third and fourth rails 8e and 8f on the moving frame 8. It is placed on the grid roller 12 of

さてここで、前記装置本体の台枠１ａに前後方向に摺動
自在に移動枠８が載置される。移動枠８は平面視で横長
矩形を呈し、台枠１ａの前後方向に沿う縦辺内側面に突
設されたレールＩＣを上下から挟んだローラ８ｂが移動
枠８の前後方向に沿う縦辺に設けられる。Now, the movable frame 8 is placed on the underframe 1a of the apparatus main body so as to be slidable in the front and rear directions. The movable frame 8 has a horizontally long rectangular shape in a plan view, and rollers 8b that sandwich the rail IC from above and below, which protrudes from the inside surface of the vertical side along the longitudinal direction of the underframe 1a, are placed on the longitudinal side of the movable frame 8 along the longitudinal direction. provided.

該移動枠８の上に第１．第２レール８ｃ、８ｄが左右方
向に設けられ、それらの上に台車１１が載置され、その
上にカセツテレス撮影装置９およびＩ　、１．１０から
なる撮像機槽が左右に一体となって載置される。The first frame is placed on top of the moving frame 8. Second rails 8c and 8d are provided in the left and right direction, a trolley 11 is placed on them, and an imaging device tank consisting of a cassetteless camera 9 and I, 1.10 is integrally placed on the left and right. be placed.

前記マスク・グリッド駆動部７およびカセツテレス撮影
装置９の間に連結移動機構１３が介在される。即ち、駆
動部７にナツト部材１３ａが突設され、これに螺合する
ねじ棒１３ｂが撮影装置９の後面に左右方向に長く設け
られる。そして、ねじ棒が撮影装置９に装備されたモー
タ（図示省略）により回転される。A connecting and moving mechanism 13 is interposed between the mask/grid driving section 7 and the cassette telegraphing device 9. That is, a nut member 13a is provided protruding from the drive portion 7, and a threaded rod 13b that is screwed into the nut member 13a is provided on the rear surface of the photographing device 9, extending in the left-right direction. Then, the threaded rod is rotated by a motor (not shown) provided in the photographing device 9.

以上において作動状態を説明する０ｗ１動棒５がり（１
直而内で揺動すれば、マスク・グリッド駆動部７が移動
枠８上を左右に移動する。同時に撮影装置９と１．１．
１０も一体で左右に移動する。連結移動機ｎ４１３を作
動させると、マスク・グリッド駆動部７に対し撮影装置
９．１．１．１０が移動して、マスク・グリッド７ａの
直下に各々位置する。In the above, 0w1 moving rod 5 (1
When the mask/grid drive unit 7 swings directly within its position, it moves left and right on the moving frame 8. At the same time, the photographing device 9 and 1.1.
10 also moves left and right as one. When the connecting moving device n413 is activated, the photographing devices 9.1.1.10 are moved relative to the mask/grid drive section 7, and are positioned directly below the mask/grid 7a.

揺動棒５が２次元運動すれば、移動枠８が台枠１ａ上を
前後方向に移動する。When the swing rod 5 moves two-dimensionally, the moving frame 8 moves in the front and rear directions on the underframe 1a.

マスク・グリッド駆動部７は、分割撮影時に分割撮影の
フィルムサイズに適合する開度にマスクを設定する。そ
のとき、連結移動機構１３は、マスクで規定された照射
野中心と分割サイズフィルムの中心とが一致する位置に
撮像機槽、即ち、カセツテレス樟影装置９を移動させる
。また、グリッド駆動部７は揺動棒５（Ｘ線管）が、円
、楕円等の２次元運動をする場合、グリッドがＸ線をカ
ットしないようにグリッドに日向性運動を与える。The mask/grid driving section 7 sets the mask to an opening degree that matches the film size of the divided photographing during divided photographing. At this time, the linking and moving mechanism 13 moves the imaging device tank, that is, the cassetteless camphorography device 9, to a position where the center of the irradiation field defined by the mask and the center of the divided size film coincide. Furthermore, when the swing rod 5 (X-ray tube) moves in two dimensions such as in a circle or an ellipse, the grid drive unit 7 gives the grid a solar motion so that the grid does not cut off the X-rays.

なお、天板が上下する場合には、揺動心細は固定されて
もよい　また、揺動棒５、マスク・グリッド駆動部７、
天板２、撮影装置９．１．１．１０、移動枠８および台
枠１ａが全体として水平軸線回りに回動する形式のもの
にも本発明は適用される。Note that when the top plate moves up and down, the swinging rod may be fixed. Also, the swinging rod 5, the mask/grid drive unit 7,
The present invention is also applicable to a type in which the top plate 2, the photographing device 9.1.1.10, the moving frame 8, and the underframe 1a rotate as a whole around a horizontal axis.

本発明は前記した実施例や実施態様に限定されず、特許
請求の精神および範囲を逸脱せずに種々の変形を含む。The present invention is not limited to the embodiments and embodiments described above, but includes various modifications without departing from the spirit and scope of the claims.

Ｇ０発明の効果 本発明の構成により、１．１．とカセツテレス撮影装置
を左右に一体としたので、これらが占める天板長手方向
および高さ方向の寸法が短縮された。また、フィルム面
と１．１．蛍光入射面の高さを一致させられるので、遠
隔操作による裁断面調整が補正なしで行えるようになっ
た。しかも、透視の際の像の拡大による画質の低下がな
くなった。G0 Effects of the Invention According to the configuration of the present invention, 1.1. Since the left and right cassette telephotography devices are integrated into one unit, the length and height of the top plate occupied by these elements has been shortened. Also, the film surface and 1.1. Since the height of the fluorescence entrance surface can be made to match, it is now possible to adjust the cut surface by remote control without correction. Moreover, there is no longer any deterioration in image quality due to image enlargement during fluoroscopy.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例の正面図、 は右側面図である。 １・・・本体 １ａ・・・台枠 １ｂ・・・面枠 ＩＣ・・・レール ２・・・天板、３・・・揺動心細支持部、５・・・揺動
棒、６・・・Ｘ線管、 ７・・・マスク・グリッド駆動部 ７ａ・・・マスク・グリッド ７ｂ・・・上アーム ７Ｃ・・・下アーム ８・・・移動枠 ８ａ・・・本体 ８ｂ・・・ローラ ８Ｃ・・・第ル−ル ８ｄ・・・第２レール ８ｅ・・・第３レール ８ｆ・・・第４レール ４・・・揺動心細、 第２図 ９・・・カセツテレス撮影装置、 １１・・・台車 １１ａ・・・車体 １１ｂ・・・車輪 １２・・・グリッドローラ １３・・連結移動機構 １３ａ・・・ナツト部材 １３ｂ・・・ねじ棒FIG. 1 is a front view of an embodiment of the present invention, and FIG. 1 is a right side view. DESCRIPTION OF SYMBOLS 1...Main body 1a...Underframe 1b...Face frame IC...Rail 2...Top plate, 3...Swinging support part, 5...Swinging rod, 6... - X-ray tube, 7...Mask/grid drive section 7a...Mask/grid 7b...Upper arm 7C...Lower arm 8...Moving frame 8a...Main body 8b...Roller 8C ... Rule 8d... Second rail 8e... Third rail 8f... Fourth rail 4... Swing care, Fig. 2 9... Cassetteless photographing device, 11...・Dolly 11a...Car body 11b...Wheel 12...Grid roller 13...Connection moving mechanism 13a...Nut member 13b...Threaded rod

Claims (1)

【特許請求の範囲】[Claims] 装置本体立枠に設けられた水平軸線を持つ揺動心軸と、
該揺動心軸に揺動可能に支持された揺動棒と、該揺動棒
の一端に配設されたＸ線管と、前記揺動棒の他端に棒長
さ方向に摺動可能、かつ、一平面内で移動可能に配設さ
れ、さらに天板を挟んで前記Ｘ線管と対向するマスク・
グリッドを有するマスク・グリッド駆動部と、前記マス
ク・グリッドの下方に位置し、前記天板の長手方向に並
設されたカセッテレス撮影装置およびイメージ・インテ
ンシフアイアを有する撮像機構と、前記撮像機構を前記
天板の長手方向に一体として移動可能に支承する支持機
構と、前記マスク・グリッド駆動部と前記撮像機構とを
連結すると共に、前記マスク・グリッドに対し前記撮像
機構を移動させる連結移動機構とを備えたことを特徴と
するＸ線断層撮影装置。a swing center shaft with a horizontal axis provided in the vertical frame of the device body;
a rocking rod swingably supported by the rocking shaft; an X-ray tube disposed at one end of the rocking rod; and a rocking rod slidable in the rod length direction at the other end of the rocking rod; and a mask disposed movably within one plane and facing the X-ray tube with a top plate in between.
a mask/grid drive section having a grid; an imaging mechanism having a cassette-less photographing device and an image intensifier positioned below the mask grid and arranged in parallel in the longitudinal direction of the top plate; and the imaging mechanism. a support mechanism that supports the top plate so as to be integrally movable in the longitudinal direction of the top plate, and a coupling movement mechanism that connects the mask/grid drive unit and the imaging mechanism and moves the imaging mechanism with respect to the mask/grid. An X-ray tomography apparatus comprising:
JP1304197A 1989-11-22 1989-11-22 X-ray tomography device Granted JPH03165745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1304197A JPH03165745A (en) 1989-11-22 1989-11-22 X-ray tomography device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1304197A JPH03165745A (en) 1989-11-22 1989-11-22 X-ray tomography device

Publications (2)

Publication Number Publication Date
JPH03165745A true JPH03165745A (en) 1991-07-17
JPH0585175B2 JPH0585175B2 (en) 1993-12-06

Family

ID=17930189

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1304197A Granted JPH03165745A (en) 1989-11-22 1989-11-22 X-ray tomography device

Country Status (1)

Country Link
JP (1) JPH03165745A (en)

Also Published As

Publication number Publication date
JPH0585175B2 (en) 1993-12-06

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