JPH01308532A - Ct apparatus - Google Patents

Ct apparatus

Info

Publication number
JPH01308532A
JPH01308532A JP63139927A JP13992788A JPH01308532A JP H01308532 A JPH01308532 A JP H01308532A JP 63139927 A JP63139927 A JP 63139927A JP 13992788 A JP13992788 A JP 13992788A JP H01308532 A JPH01308532 A JP H01308532A
Authority
JP
Japan
Prior art keywords
top plate
bed
pedestal
length
subject
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
Application number
JP63139927A
Other languages
Japanese (ja)
Inventor
Atsushi Matsumoto
淳 松本
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP63139927A priority Critical patent/JPH01308532A/en
Publication of JPH01308532A publication Critical patent/JPH01308532A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To conserve a space by shortening the length from the end part of a stand to the end part of a bed, by mounting a bed tiltable in such a state that an examinee is placed and arranging the same in positional relation such that the end part of the bed on the side of the stand in a horizontal state enters an imaging hole. CONSTITUTION:An examinee P is placed on a bed 13 in such a state that a top plate 13a and a top plate feed mechanism part 13b are inclined. The top plate 13a and the top plate feed mechanism part 13b are revolved by a hydraulic cylinder 13c to become a horizontal state. The top plate 13a is moved in the direction shown by an arrow 6 by the top plate feed mechanism part 13b and the examinee P on the top plate 13a is inserted in an imaging hole 12. After the collection of X-ray projection data is finished, the top plate 13a is returned to the initial position, and the top plate 13a and the top plate feed mechanism part 13b are inclined to allow the examinee P to fall. The length 19 of the top plate 13a is equal to that of a conventional apparatus but, since the bed 13 is arranged in positional relation such that a part of the top plate 13a enters the imaging hole 12 in a horizontal state, the length 18 from the end part of a stand 11 to the end part of the bed 13 becomes short.

Description

【発明の詳細な説明】 [発明の目的] (産業上の利用分野) 本発明は、架台の撮影孔内に配置された被検体の画像デ
ータを収集するCT装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a CT apparatus that collects image data of a subject placed in an imaging hole of a mount.

(従来の技術) CT装置、例えば被検体を透過したX線を検出すること
により該被検体のX線投影データを収集するX線CT装
置は、第14図に示すように、@形孔2が形成された架
台1と、被検体Pを載置する寝台3とを有して成る。架
台1には、九影孔2を介して互いに対向するようにX線
管1aとX線検出器1bとが配置されている。このX線
管1aとX線検出器1bとは、撮影孔2内に配置された
被検体Pの体軸を中心に互いに同一方向に同一速度で回
転移動するようになっており、X線管1a及びX線検出
器1bの微小回転移動毎のX線曝射により、被検体Pの
多方向についてのX線投影データが収集される。
(Prior Art) A CT apparatus, for example, an X-ray CT apparatus that collects X-ray projection data of a subject by detecting X-rays transmitted through the subject, is equipped with a @shaped hole 2 as shown in FIG. The apparatus includes a pedestal 1 on which a patient P is formed, and a bed 3 on which a subject P is placed. An X-ray tube 1a and an X-ray detector 1b are arranged on the pedestal 1 so as to face each other with a nine-shade hole 2 interposed therebetween. The X-ray tube 1a and the X-ray detector 1b rotate in the same direction and at the same speed around the body axis of the subject P placed in the imaging hole 2. X-ray projection data in multiple directions of the subject P is collected by emitting X-rays every minute rotational movement of the X-ray detector 1a and the X-ray detector 1b.

寝台3は、天板3a、天板送り機構部3b、寝台上下動
機構部3Cを有して成る。天板3a上の被検体Pは寝台
上下動機構部3Cにより矢印4方向に移動され、更に天
板送り機構部3bにより矢印6方向に移動され、これに
より被検体Pが撮影孔2内に挿入される。Aは、X線i
!ff1tFjにあける天板3aの移動範囲を示してい
る。
The bed 3 includes a top plate 3a, a top plate feeding mechanism part 3b, and a bed vertical movement mechanism part 3C. The subject P on the top plate 3a is moved in the direction of arrow 4 by the bed vertical movement mechanism 3C, and is further moved in the direction of arrow 6 by the top plate feeding mechanism 3b, whereby the subject P is inserted into the imaging hole 2. be done. A is X-ray i
! The movement range of the top plate 3a is shown in ff1tFj.

(発明が解決しようとする課題) ところで近年、CT装置の設置面積を減少させることで
省スペース化が図られているが、従来装置では架台1の
端部から寝台3の端部までの長さ8を短くするのが困難
で、省スペース化を十分に図ることができない。
(Problem to be Solved by the Invention) In recent years, space-saving efforts have been made by reducing the installation area of CT devices, but in conventional devices, the length from the end of the pedestal 1 to the end of the bed 3 is 8 is difficult to shorten, and space saving cannot be achieved sufficiently.

そこで本発明は上記の欠点を除去するもので、その目的
とするところは、架台の端部から寝台の端部までの長さ
を短縮することによって省スペース化を図ったCT装置
を提供することにある。
SUMMARY OF THE INVENTION The present invention aims to eliminate the above-mentioned drawbacks, and its purpose is to provide a CT apparatus that saves space by shortening the length from the end of the pedestal to the end of the bed. It is in.

[発明の構成] (課題を解決するための手段) 本発明は、i形孔が形成された架台を有し、この架台の
撮影孔内に配置された被検体の画像データを収集するC
T装置において、被検体を載置した状態で起倒動可能な
寝台を具備し、水平状態における前記寝台の架台側端部
が前記撮影孔内に入り込む位置関係で前記寝台を配置し
たものである。
[Structure of the Invention] (Means for Solving the Problems) The present invention has a mount in which an I-shaped hole is formed, and collects image data of a subject placed in the imaging hole of the mount.
The T device is equipped with a bed that can be raised and lowered with a subject placed thereon, and the bed is arranged in a positional relationship such that the pedestal side end of the bed in a horizontal state enters the imaging hole. .

(作 用) 上記の構成によれば、水平状態における寝台の架台側端
部がR形孔内に入り込む位置関係で寝台が配置されてい
るので、少なくとも、寝台の架台側端部が撮影孔内に入
り込んだ分だけ、架台端部から寝台端部までの長さが短
縮される。
(Function) According to the above configuration, since the bed is arranged in such a position that the end of the bed on the pedestal side in the horizontal state enters the R-shaped hole, at least the end of the bed on the pedestal side is inside the photographing hole. The length from the end of the pedestal to the end of the bed is shortened by the amount of insertion.

(実施例) 以下、本発明を実施例により具体的に説明する。(Example) Hereinafter, the present invention will be specifically explained with reference to Examples.

第1図は本発明の一実施例を示している。FIG. 1 shows an embodiment of the invention.

11は架台であり、この架台11は従来のものと同様に
形成されている。13は寝台であり、この寝台13は、
天板13aと、この天板13aを矢印6,7方向に移動
させる天板送り機構部13bと、この天板送り機構部1
3bを回動可能に支持する支持柱13dと、17で示す
部分を中心に天板送り機構部13bを矢印14.15方
向に回動させる油圧シリンダ13cとを有して成る。
Reference numeral 11 denotes a pedestal, and this pedestal 11 is formed in the same manner as a conventional one. 13 is a bed, and this bed 13 is
A top plate 13a, a top plate feeding mechanism part 13b that moves the top plate 13a in the directions of arrows 6 and 7, and this top plate feeding mechanism part 1.
3b rotatably supported, and a hydraulic cylinder 13c that rotates the top plate feeding mechanism section 13b in the directions of arrows 14 and 15 around a portion indicated by 17.

この油圧シリンダ13Cによる矢印14.15方向の回
動を寝台起倒動と称する。
This rotation in the directions of arrows 14 and 15 by the hydraulic cylinder 13C is referred to as raising and lowering the bed.

本実施例では、水平状態における寝台13の架台11側
端部、すなわち天板13aの一部が撮影孔12内に入り
込む位置関係で寝台13が配置されており、これが本実
施例装置の特徴点の一つとなっている。尚、天板13a
の長手方向く移動方向)の長ざ19は従来装置(第14
図)におけるそれと等しい。
In this embodiment, the bed 13 is arranged in such a position that the end of the bed 13 on the pedestal 11 side in the horizontal state, that is, a part of the top plate 13a enters the photographing hole 12, and this is a feature of the device of this embodiment. It is one of the In addition, the top plate 13a
The length 19 (longitudinal direction and moving direction) of the conventional device (the 14th
It is equivalent to that in Figure).

上記の構成において、寝台13への被検体Pの載置は、
天板13a及び天板送り機構部13bが傾斜した状態で
行われる(第2図参照)。
In the above configuration, placing the subject P on the bed 13 is as follows:
This is performed with the top plate 13a and the top plate feeding mechanism section 13b tilted (see FIG. 2).

そして被検体Pを載置した状態で、油圧シリンダ13G
により天板13a及び天板送り機構部13bが矢印14
方向に回動され、やがて天板13a及び天板送り機構部
13bが水平状態となる(第3図参照)。この状態で、
天板送り機構部13bにより天板13aが矢印6方向に
移動され、この天板13a上の被検体Pが回形孔12内
に挿入される。X線比影における天板13aの移動範囲
B(第1図)は、従来装置におけるそれ(第14図A)
に筈しい。
Then, with the subject P placed thereon, the hydraulic cylinder 13G
Accordingly, the top plate 13a and the top plate feeding mechanism portion 13b are moved as indicated by the arrow 14.
The top plate 13a and the top plate feeding mechanism section 13b are eventually brought into a horizontal state (see FIG. 3). In this state,
The top plate 13a is moved in the direction of arrow 6 by the top plate feeding mechanism 13b, and the subject P on the top plate 13a is inserted into the circular hole 12. The movement range B of the top plate 13a in the X-ray contrast (Fig. 1) is the same as that in the conventional device (Fig. 14 A).
It should be.

被検体PのX線投影データ収集を終了した後、天板13
aは初期位置に戻され(第3図の状態)、天板13a及
び天板送り機構部13bが再び傾斜され(第2図参照)
、被検体Pが天板13a上より降ろされる。
After completing the collection of X-ray projection data of the subject P, the top plate 13
a is returned to the initial position (the state shown in Fig. 3), and the top plate 13a and the top plate feeding mechanism section 13b are tilted again (see Fig. 2).
, the subject P is lowered from the top plate 13a.

ここで、天板13aの長さ19は従来装置(第14図)
におけるそれと等しいが、水平状態においてこの天板1
3aの一部が撮影孔12内に入り込む位置関係で寝台1
3が配置されているため、架台11の端部から寝台13
の端部までの長さ18は、従来装置の場合よりも短くな
る。このため、本実施例装置によれば、従来装置に比し
て設置スペースの減少化が容易である。
Here, the length 19 of the top plate 13a is the conventional device (Fig. 14).
However, in the horizontal state, this top plate 1
Bed 1 due to the positional relationship where a part of 3a enters the photographing hole 12.
3, the bed 13 is placed from the end of the pedestal 11.
The length 18 to the end of is shorter than in conventional devices. Therefore, according to the device of this embodiment, the installation space can be easily reduced compared to the conventional device.

次に、他の実施例について説明する。Next, other embodiments will be described.

上記実施例(第1図参照)における天板13aの長ざ1
9を短縮することで、寝台13を架台11に更に近付け
ることができる。第4図はこの場合の実施例を示してい
る。
Length 1 of the top plate 13a in the above embodiment (see Fig. 1)
By shortening 9, the bed 13 can be brought closer to the pedestal 11. FIG. 4 shows an embodiment in this case.

天板23aの長さ21は上記実施例における天板13a
よりも短い。そしてこの天板の短縮分だけ更に寝台23
を架台11に近付けている。この結果、架台11の端部
から寝台23の端部までの長さ20は、上記実施例の場
合(第1図18)よりも更に短くなる。また、天板23
aの右端部には、断面三角形状のマット部材13eが設
けられている。
The length 21 of the top plate 23a is the top plate 13a in the above embodiment.
shorter than And an additional 23 beds due to the shortening of this top plate.
is brought closer to the stand 11. As a result, the length 20 from the end of the pedestal 11 to the end of the bed 23 becomes even shorter than in the above embodiment (FIG. 18). In addition, the top plate 23
A mat member 13e having a triangular cross section is provided at the right end of a.

上記の構成において、被検体Pは第5図に示すように、
マット部材13e上で膝を屈曲した状態で天板13a上
に載置される。その後、天板23a及び天板送り機構部
13bが矢印14方向に回動され、寝台23は第6図に
示すように水平状態となる。天板23aの移動について
は上記実施例の場合と同様である。
In the above configuration, the subject P is as shown in FIG.
The user is placed on the top plate 13a with his/her knees bent on the mat member 13e. Thereafter, the top plate 23a and the top plate feeding mechanism section 13b are rotated in the direction of arrow 14, and the bed 23 is placed in a horizontal state as shown in FIG. The movement of the top plate 23a is the same as in the above embodiment.

尚、第2図及び第5図において、天板13a。In addition, in FIGS. 2 and 5, the top plate 13a.

23aが架台11に当接するおそれがある場合には、架
台11を矢印25方向に若干チルト(傾斜)させればよ
い。
If there is a possibility that the pedestal 23a may come into contact with the pedestal 11, the pedestal 11 may be slightly tilted in the direction of the arrow 25.

また、寝台駆動についても種々の方式が考えられる。Furthermore, various methods can be considered for driving the bed.

例えば第7図に示すように、天板送り機構部13bをリ
ードスクリュ24によって支持し、リードスクリュ駆動
部25によってリードスクリュ24を矢印27方向に上
下動させるようにしてもよい。リードスクリュ24の上
端部には油圧シリンダ26が取付けられ、寝台の起倒動
はこの油圧シリンダ26によって行われる。このような
構成によれば、寝台の起倒動に加えて上下動が可能とな
るので、被検体の乗り降りが楽になる。
For example, as shown in FIG. 7, the top plate feeding mechanism section 13b may be supported by a lead screw 24, and the lead screw drive section 25 may move the lead screw 24 up and down in the direction of arrow 27. A hydraulic cylinder 26 is attached to the upper end of the lead screw 24, and the bed is raised and lowered by this hydraulic cylinder 26. With this configuration, the bed can be moved up and down in addition to being raised and lowered, making it easier for the subject to get on and off the bed.

また、第8図に示すように、天板送り機構部13bの一
端部をリードスクリュ28で支持し、他端部を油圧シリ
ンダ29で支持するようにしても、上記と同様の効果が
得られる。
Furthermore, as shown in FIG. 8, the same effect as described above can be obtained by supporting one end of the top plate feeding mechanism section 13b with a lead screw 28 and supporting the other end with a hydraulic cylinder 29. .

更に、第9図に示すように、天板送り機構部13bの一
端部を第1の゛支持柱30によって回動自在に支持し、
他端部を第2の支持柱31によって回動自在に支持し、
この第2の支持柱31の床面側に、適宜の駆動手段例え
ばモータによって回動されるローラ32を設けるように
してもよい。
Furthermore, as shown in FIG. 9, one end of the top plate feeding mechanism section 13b is rotatably supported by a first support column 30,
The other end is rotatably supported by a second support column 31,
A roller 32 may be provided on the floor side of the second support column 31 to be rotated by an appropriate driving means, for example, a motor.

このローラ32の回動により第2の支持柱31の床面側
を矢印33及び34方向に移動させることにより寝台の
起倒動が可能となる。
By rotating the roller 32, the floor side of the second support column 31 is moved in the directions of arrows 33 and 34, thereby making it possible to raise and lower the bed.

以上の実施例では寝台起倒動において天板送り機構部1
3bをも傾斜させるようにしたが、天板のみを傾斜させ
るようにしてもよい。第10図乃至第12図はこの場合
の実施例を示している。天板36は屈曲部37を有し、
この屈曲部37によって第1.第2の天板片36a、3
6bを連結して成る。この屈曲部37は第12図に示す
ように、駆動部(例えばモータ)37aと減速機構部3
7bとロック機構部37Gとから成る。駆動部37aの
駆動力が減速機構部37bに伝達され、これにより第1
の天板片36aのみが起倒動される。また、この第1の
天板片36aはロック機構部37.Cにより所望の傾斜
角度で固定される。寝台上下動機構部3Cの構成及びそ
の作用は従来装置(第14図参照)のそれと同様である
。被検体の乗り降りは第11図の状態で行われ、寝台上
昇後に天板36が水平状態となり、撮影が行われる。
In the above embodiment, the top plate feeding mechanism section 1
3b is also tilted, but only the top plate may be tilted. FIGS. 10 to 12 show examples in this case. The top plate 36 has a bent part 37,
This bent portion 37 allows the first. Second top plate piece 36a, 3
6b are connected. As shown in FIG.
7b and a locking mechanism section 37G. The driving force of the drive section 37a is transmitted to the deceleration mechanism section 37b, thereby causing the first
Only the top plate piece 36a is raised and lowered. The first top plate piece 36a also has a locking mechanism section 37. C is fixed at a desired inclination angle. The configuration and operation of the bed vertical movement mechanism 3C are similar to those of the conventional device (see FIG. 14). The subject gets on and off the bed in the state shown in FIG. 11, and after the bed rises, the top plate 36 becomes horizontal and photography is performed.

また、被検体Pを傾斜させたままの状態で撮影を行うこ
ともできる。例えば第5図の構成においては、第13図
に示すように架台11をチルトさせ、この状態で天板2
3aを送出せばよい。
Furthermore, imaging can be performed while the subject P remains tilted. For example, in the configuration shown in FIG. 5, the pedestal 11 is tilted as shown in FIG.
3a should be sent.

尚、本発明は上記実施例に限定されない。例えば架台1
1は、X線CT装置における架台のみならず、磁気共鳴
イメージング装置における架台であってもよい。すなわ
ち、本明細書中におけるCT装置には磁気共鳴イメージ
ング装置をも含まれる。
Note that the present invention is not limited to the above embodiments. For example, frame 1
1 may be not only a mount in an X-ray CT apparatus but also a mount in a magnetic resonance imaging apparatus. That is, the CT apparatus in this specification also includes a magnetic resonance imaging apparatus.

[発明の効果] 以上詳述したように本発明によれば、架台の端部から寝
台の端部までの長さを短縮することによって設置スペー
スの減少を図ったCT装置を提供することができる。
[Effects of the Invention] As detailed above, according to the present invention, it is possible to provide a CT apparatus in which the installation space is reduced by shortening the length from the end of the pedestal to the end of the bed. .

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

第1図は本発明に係るCT装置の一実施例の説明図、第
2図及び第3図は第1図に示す装置の作用説明図、第4
図は本発明に係るCT装置の他の実施例の説明図、第5
図及び第6図は第4図に示す装置の作用説明図、第7図
、第8図及び第9図は寝台駆動方式の変形例説明図、第
10図は本発明に係るCT装置の他の実施例の説明図、
第11図は第10図に示す装置の作用説明図、第12図
は第10図及び第11図に示V装置における主要部の斜
視図、第13図は第5図に示す装置においで架台をチル
トさせた状態での倣形の説明図、第14図は従来例の説
明図である。 11・・・架台、       12・・・撮影孔、1
3.23・・・寝台、    P・・・被検体。 第  1  図 第  2  図 3C 第11図 7b
FIG. 1 is an explanatory diagram of one embodiment of the CT apparatus according to the present invention, FIGS. 2 and 3 are explanatory diagrams of the operation of the apparatus shown in FIG.
Figure 5 is an explanatory diagram of another embodiment of the CT apparatus according to the present invention.
6 and 6 are explanatory views of the operation of the apparatus shown in FIG. 4, FIGS. 7, 8, and 9 are explanatory views of modified examples of the bed drive system, and FIG. 10 is an illustration of the CT apparatus according to the present invention. An explanatory diagram of an example of
11 is an explanatory diagram of the operation of the device shown in FIG. 10, FIG. 12 is a perspective view of the main parts of the V device shown in FIGS. 10 and 11, and FIG. 13 is a pedestal in the device shown in FIG. FIG. 14 is an explanatory diagram of a conventional example. 11... Frame, 12... Shooting hole, 1
3.23... Bed, P... Subject. Figure 1 Figure 2 Figure 3C Figure 11 7b

Claims (1)

【特許請求の範囲】[Claims] 撮影孔が形成された架台を有し、この架台の撮影孔内に
配置された被検体の画像データを収集するCT装置にお
いて、被検体を載置した状態で起倒動可能な寝台を具備
し、水平状態における前記寝台の架台側端部が前記撮影
孔内に入り込む位置関係で前記寝台を配置したことを特
徴とするCT装置。
A CT apparatus that has a pedestal in which an imaging hole is formed and that collects image data of a subject placed in the imaging hole of the mount, and includes a bed that can be raised and folded with the subject placed thereon. . A CT apparatus, wherein the bed is arranged in a positional relationship such that an end of the bed on the pedestal side in a horizontal state enters into the imaging hole.
JP63139927A 1988-06-07 1988-06-07 Ct apparatus Pending JPH01308532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63139927A JPH01308532A (en) 1988-06-07 1988-06-07 Ct apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63139927A JPH01308532A (en) 1988-06-07 1988-06-07 Ct apparatus

Publications (1)

Publication Number Publication Date
JPH01308532A true JPH01308532A (en) 1989-12-13

Family

ID=15256905

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63139927A Pending JPH01308532A (en) 1988-06-07 1988-06-07 Ct apparatus

Country Status (1)

Country Link
JP (1) JPH01308532A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011111119A1 (en) * 2010-03-12 2011-09-15 株式会社島津製作所 Tomograph
CN108634981A (en) * 2018-05-29 2018-10-12 余庆县人民医院 A kind of CT machines it is scanning bed
US10531843B2 (en) 2013-05-29 2020-01-14 Canon Medical Systems Corporation Couch device, X-ray CT apparatus, and medical image diagnostic apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011111119A1 (en) * 2010-03-12 2011-09-15 株式会社島津製作所 Tomograph
CN102791198A (en) * 2010-03-12 2012-11-21 株式会社岛津制作所 Tomograph
US9833208B2 (en) 2010-03-12 2017-12-05 Shimadzu Corporation Body section imaging apparatus
US10531843B2 (en) 2013-05-29 2020-01-14 Canon Medical Systems Corporation Couch device, X-ray CT apparatus, and medical image diagnostic apparatus
CN108634981A (en) * 2018-05-29 2018-10-12 余庆县人民医院 A kind of CT machines it is scanning bed

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