JPS59200638A - X-ray ct scanner - Google Patents
X-ray ct scannerInfo
- Publication number
- JPS59200638A JPS59200638A JP58073798A JP7379883A JPS59200638A JP S59200638 A JPS59200638 A JP S59200638A JP 58073798 A JP58073798 A JP 58073798A JP 7379883 A JP7379883 A JP 7379883A JP S59200638 A JPS59200638 A JP S59200638A
- Authority
- JP
- Japan
- Prior art keywords
- ray
- scanner
- slip ring
- insulating gas
- 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.)
- Pending
Links
- 230000005855 radiation Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
Landscapes
- Analysing Materials By The Use Of Radiation (AREA)
- X-Ray Techniques (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は、被検体挿入口の周囲を連続回転可能なＸ線
管ｆ二高電圧を印加する経路にスリップリングを有する
Ｘ線ＣＴスキャナの技術分野Ｃ１属する。[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a technology for an X-ray CT scanner that has a slip ring in a path for applying high voltage to an X-ray tube f that can continuously rotate around a subject insertion port. Belongs to field C1.
従来、米国特許第４３２９００４号において、絶縁ガス
を用いた高電圧用スリップリングが提案されている。Conventionally, US Pat. No. 4,329,004 proposes a high voltage slip ring using an insulating gas.
前記の構造をＸ線ＣＴスキャナＣ二用いた場合には、ス
リップリングの雰囲気である絶縁ガスたとえばＳＦ６の
シールを、回転部と固定部との間に介装されたシール部
材ｌ二よシ行なうため、回転部の回転ｌ二よる摩擦ｆ二
よシシール部材が発熱し、それが為ｆ二早期に１劣化し
てしまう。また、封入された絶縁ガスは、通常、高い圧
力であるときｆ二、良好な絶縁効果を奏するのであるが
、絶縁ガスの高い圧力を維持するためには、回転部と固
定部とを圧着しなければならず、そうすると、回転部ｆ
二必要なトルクが増大する。When the above structure is used in the X-ray CT scanner C2, sealing with an insulating gas such as SF6, which is the atmosphere of the slip ring, is performed by a seal member L2 interposed between the rotating part and the fixed part. Therefore, the seal member generates heat due to the friction f2 due to the rotation l2 of the rotating part, which results in early deterioration of f2. In addition, the sealed insulating gas usually has a good insulation effect when the pressure is high, but in order to maintain the high pressure of the insulating gas, the rotating part and the fixed part must be crimped. Then, the rotating part f
Second, the required torque increases.
よって、前記Ｘ線ＣＴスキャナでは、Ｘ線管の連続回転
および高速回転Ｃ二限界が有る。Therefore, in the X-ray CT scanner, there are two limits: continuous rotation and high-speed rotation of the X-ray tube.
この発明は、前記事情に錯みてなされたものであシ、Ｘ
線管の連続回転および高速回転の能力を著しく高めたＸ
線ＣＴスキャナを提供することを目的とする。This invention was made under the above circumstances,
X with significantly improved continuous rotation and high-speed rotation capabilities of the wire tube
The purpose of the present invention is to provide a line CT scanner.
前記目的を達成するためのこの発明の概要は、ロータと
ステータとを有するスリップリングを内装すると共にス
リップリングを介して高電圧が印加されるＸ線管の回転
を案内するドーナツ形の筐体内Ｃ１絶縁ガスを封入した
ことを特徴とするものである。The outline of the present invention for achieving the above object is to provide a donut-shaped housing C1 that guides the rotation of an X-ray tube that includes a slip ring having a rotor and a stator, and to which a high voltage is applied via the slip ring. It is characterized by being filled with insulating gas.
この発明の一実施例について図面を参照しなから説明す
−る。An embodiment of the present invention will be described with reference to the drawings.
第１図および第２図（二示すように、Ｘ線ＣＴ装置にお
けるこの発明の一実施例であるＸ線ＣＴスキャナ１は、
被検体挿入孔２の周囲ζ二位置するドーナツ形状の筐体
３内に矢印Ｘ方向に回転可能なＸ線管４を配置する。前
記筐体６内（二は、筐体６の内径面（二設けられたベア
リング部５によシ支持されると共にＸ線管４を有する回
転部と、Ｘ線管４に高電圧を供給するための、筐体６の
外径面Ｃ二股けられたステータ６および前記回転部に設
けられたロータ７よシなるスリップリング８と、シール
部材９で筐体６内部に密封された絶縁ガス１０たとえば
ＳＦ６とを有する。As shown in FIGS. 1 and 2, an X-ray CT scanner 1 which is an embodiment of the present invention in an X-ray CT apparatus is
An X-ray tube 4 rotatable in the direction of the arrow X is disposed within a donut-shaped casing 3 located ζ2 around the subject insertion hole 2. Inside the casing 6 (2) is a rotary part that is supported by a bearing part 5 provided on the inner diameter surface of the casing 6 and has the X-ray tube 4, and supplies high voltage to the X-ray tube 4. Insulating gas 10 is sealed inside the housing 6 by a slip ring 8 which is the same as the stator 6 and the rotor 7 provided on the rotating part, and the sealing member 9. For example, it has SF6.
なお、第２図Ｃ二おいて、１１で示すのは検出器以上構
成のＸ線ＣＴスキャナ１は、筐体６内Ｃ二シ一ル部材９
で絶縁ガス１０を封じ込め、筐体６内の絶縁ガス１０の
雰囲気下にスリップリング８を有しているので、シール
部材９（二何らの回転力、あるいは回転摩擦を加えるこ
となく、スリップリング８に二おけるロータ７を回転さ
せることができ、ロータ７の自由な回転によシＸ線管４
を回転させることができる。スリップリング８は、シー
ル部材９に対して機構的Ｃ１無関係となるので、シール
部材９の耐久性等を考慮する必要がなく、Ｘ線管の連続
回転および高速回転を所望のとおり（１行なうことがで
きる。In addition, in FIG. 2 C2, the X-ray CT scanner 1 shown by 11 is composed of a detector or more.
Since the insulating gas 10 is contained in the insulating gas 10 and the slip ring 8 is provided in the atmosphere of the insulating gas 10 in the housing 6, the slip ring 8 can be sealed without applying any rotational force or rotational friction. The rotor 7 can be rotated in two directions, and the X-ray tube 4 can be rotated freely due to the rotor 7.
can be rotated. Since the slip ring 8 is mechanically unrelated to the seal member 9, there is no need to consider the durability of the seal member 9, and the continuous rotation and high-speed rotation of the X-ray tube can be performed as desired. Can be done.
以上、この発明の一実施例Ｃ二ついて詳述したが、この
発明は前記実施例ｆ二限定されるものではなく。Although the present invention has been described in detail using two embodiments C, the present invention is not limited to the embodiment F2.
この発明の要旨を変更しない範囲内で適宜【二液形して
実施することができるのはいうまでもない。It goes without saying that the invention can be carried out in two-component form as appropriate without changing the gist of the invention.
この発明（二よると、従来のように回転部と固定部との
間【ニシール部材を介装するのではなく、シール部材で
密封されり筐体内【ニスリップリングを含む回転部を配
置し、筐体自体を回転させずＣ１筐体内の回転部を回転
しているので、シール部材の熱劣化等を考慮することな
く、回転部を二おけるＸ線管を所望の回数の連続回転お
よび所望速度で高速回転することができる。したがって
、この発明Ｃ二よると、Ｘ線管の連続回転および高速回
転の能力を著しく高め′ｆｃＸ線ＣＴスキャナを提供す
ることができる。According to this invention (2), instead of interposing a sealing member between the rotating part and the fixed part as in the conventional case, the rotating part including the sealing ring is placed inside the housing, and the rotating part is sealed with a sealing member. Since the rotating part inside the C1 housing is rotated without rotating the housing itself, the X-ray tube in the rotating part can be continuously rotated the desired number of times and at the desired speed without considering thermal deterioration of the sealing member. Therefore, according to the present invention C2, it is possible to provide an X-ray CT scanner in which the ability of continuous rotation and high-speed rotation of the X-ray tube is significantly enhanced.
第１図はこの発明の一実施例であるＸ線ＣＴスキャナＣ
二おける筐体を示す概略斜視図および第２図は前記Ｘ線
ＣＴスキャナを示す縦断面斜視図である。
１・・・Ｘ線ＣＴスキャナ、 ６・・・筐体、 ４・・
・Ｘ線管、 ６・・・ステータ、 ７・・・ロータ
、 ８・・・スリップリング、 １０・・・絶縁ガ
ス。FIG. 1 shows an X-ray CT scanner C which is an embodiment of the present invention.
FIG. 2 is a schematic perspective view showing the casing, and FIG. 2 is a vertical cross-sectional perspective view showing the X-ray CT scanner. 1... X-ray CT scanner, 6... Housing, 4...
・X-ray tube, 6... Stator, 7... Rotor, 8... Slip ring, 10... Insulating gas.
Claims (1)
と共にニスリップリングを介して高電圧が印加されるＸ
線管の回転を案内するドーナツ形の筐体内に絶縁ガスを
封入したことを特徴とするＸ線ＣＴスキャナ。A slip ring with a rotor and a stator is installed inside, and a high voltage is applied through the slip ring.
An X-ray CT scanner characterized in that an insulating gas is sealed in a donut-shaped housing that guides the rotation of a radiation tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58073798A JPS59200638A (en) | 1983-04-28 | 1983-04-28 | X-ray ct scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58073798A JPS59200638A (en) | 1983-04-28 | 1983-04-28 | X-ray ct scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59200638A true JPS59200638A (en) | 1984-11-14 |
Family
ID=13528548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58073798A Pending JPS59200638A (en) | 1983-04-28 | 1983-04-28 | X-ray ct scanner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59200638A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0519555U (en) * | 1991-08-21 | 1993-03-12 | リヨービ株式会社 | Engine for portable work machine |
-
1983
- 1983-04-28 JP JP58073798A patent/JPS59200638A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0519555U (en) * | 1991-08-21 | 1993-03-12 | リヨービ株式会社 | Engine for portable work machine |
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